date: 23 (d i zoit - cer.org.za · date: 23 (d i zoit 290 no. 42053 government gazette, 23 november...
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GENERAL NOTICE
NOTICE OF 2018
DEPARTMENT OF WATER AND SANITATION
NATIONAL WATER ACT, 1998(ACT NO.36 OF 1998)
PROPOSED CLASSES OF WATER RESOURCE AND RESOURCE QUALITY OBJECTIVESFOR THE BREEDE -GOURITZ WATER MANAGEMENT AREA
I, Gugile Nkwinti, Minister of Water and Sanitation, hereby in terms of section 13(4) of the NationalWater Act, 1998 (Act No. 36 of 1998) publish, for public comment, the proposed classes of waterresources and the proposed resource quality objectives for the Breede -Gouritz Water ManagementArea, in the Schedule, to be determined under S13(1) of the Act.
Any person who wishes to submit written comments with regard to the proposed classes of waterresources and the proposed resource quality objectives should submit the comments within 60 daysfrom the date of publication of this Notice to:
Director: Water Resource ClassificationAttention: Ms Lebogang MatlalaDepartment of Water and SanitationNdinaye Building 5046178 Francis Baard StreetPrivate Bag x 313Pretoria0001Facsimile: 012 336 6712Email: matlalal @dws.gov.za
MR NKWINTI GE (MP)MINISTER OF WATER AND SANITATIONDATE: 23 (D i zoit
290 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
DEPARTMENT OF WATER AND SANITATION
NO. 1298 23 NOVEMBER 20181298 National Water Act (36/1998): Proposed classes of water resources and resource quality objectives for the Breede-Gouritz Water Management Area 42053
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 291
1
SCHEDULE
DESCRIPTION OF THE WATER RESOURCE
The proposed water resource classes and resource quality objectives are determined for all or part of every significant water resource as set out below: Water Management Area: Breede-Gouritz Drainage Region: G40-G50, H10- H90, J10-J40, K10-K70 Tertiary Drainage Region River(s): Breede Overberg Area: Breede River, Rivieronderend River, Overberg
River, as well as other smaller coastal rivers. Gouritz Coastal Area: Gouritz River, Buffels River, Touws River, Groot River, Gamka River, Olifants River, Kammanassie River, and smaller coastal rivers.
A. PROPOSED WATER RESOURCE CLASSES AS REQUIRED IN TERMS OF SECTION
13(4)(a)(i)(aa) OF THE NATIONAL WATER ACT, 1998
i. The proposed water resource classes for Breede-Gouritz Water Management Area are listed in Table 1 according to the overall class per integrated unit of analysis (IUA), indicated in Figure 1 for Breede Overberg Area and indicated in Figure 2 for Gouritz Coastal Area.
ii. IUAs are classified in terms of their extent of permissible utilisation and protection as either Class I: indicating high environmental protection and minimal utilisation; Class II indicating moderate protection and moderate utilisation; and Class III indicating sustainable minimal protection and high utilisation.
iii. Table 1 provides the IUA, its water resource class and its respective catchment configuration. The catchment configuration consists of a number of biophysical nodes representing river reaches or resource units (RUs). The ecological category to be maintained for each RU in the IUA is provided.
B. RESOURCE QUALITY OBJECTIVES OF WATER RESOURCES AS REQUIRED IN TERMS
OF SECTION 13(4)(a)(i)(bb) OF THE NATIONAL WATER ACT, 1998 i. Resource Quality Objectives (RQOs) are defined for each prioritised RU for every IUA in
terms of water quantity, habitat and biota, and water quality. Prioritised RUs for Breede Overberg Area are indicated in Figure 1 and prioritised RUs for Gouritz Coastal Area are indicated in Figure 2.
ii. Table 2 to Table 17 provide the RQOs for RIVERS in priority RUs.
iii. Table 18 to Table 26 provide the RQOs for ESTUARIES in priority RUs.
iv. Table 27 to Table 40 provide the RQOs for GROUNDWATER in priority RUs.
v. RQOs will apply from the date signed off as determined in terms of Section 13(1) of the National Water Act, 1998, unless otherwise specified by the Minister.
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er R
esou
rce
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ss
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logi
cal
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egor
y
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er B
reed
e N
i z
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ribut
arie
s (A
l) N
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mes
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iv3
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undw
ater
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egor
y
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er /E
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ry n
odes
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atum
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GS8
4
292 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
2
Figu
re 1
: Pro
pose
d W
ater
Res
ourc
e Cl
asse
s fo
r the
Bre
ede
Ove
rber
g Ar
ea
Wat
er R
esou
rce
Cla
ss
II III
Eco
logi
cal
Cat
egor
y
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er /E
stua
ry N
odes
o
A
B B/C
C C/D
D
0 E
Gro
undw
ater
Cat
egor
y
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ka-B
uffe
ls (
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fort
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t
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ritz-
Olif
ants
(D
7)
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ce A
lber
t
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ouw
s (E
8)
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n gi
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um:
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S84
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 293
3
Figu
re 2
: Pro
pose
d W
ater
Res
ourc
e Cl
asse
s fo
r the
Gou
ritz
Coas
tal A
rea
Mal
mes
bury
Ste
llenb
osch
aaw
Bre
ede
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lçin
g T
ribut
arie
s
f;wel
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m-L
7 N
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}}
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er e
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e \_
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MY
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ER
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AP
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tern
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e
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EE
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UR
IEZ
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EN
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ns
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isat
ion
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uary
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ritis
atio
n
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® Y
es
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er N
odes
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ritis
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n
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undw
ater
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ritis
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n
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ritis
ed W
etla
nds
Riv
ers
IUA
Gro
up B
ound
ary
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ER
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OR
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AT
E S
YS
TE
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TM
Zon
e 34
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SC
ALE
P
ta
o
1:70
0,00
0
294 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
4
Figu
re 3
: Pro
pose
d Pr
iorit
y Re
sour
ce U
nits
for t
he B
reed
e O
verb
erg
Area
Rob
erts
on
Sw
elle
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amR
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EN
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uarie
s
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ritis
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n
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® Y
es
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er
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es
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ritis
atio
n
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undw
ater
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ritis
atio
n
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ritis
ed W
etla
nds
- Riv
ers
O IL
IA G
roup
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ndar
y
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AW
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HE
RY
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SIE
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RE
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AT
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n
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 295
5
Fi
gure
4: P
ropo
sed
Prio
rity
Reso
urce
Uni
ts fo
r the
Gou
ritz
Coas
tal A
rea
296 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
6Ta
ble
1: S
umm
ary
of W
ater
Res
ourc
e Cl
asse
s pe
r Int
egra
ted
Unit
of A
naly
sis
and
Ecol
ogic
al C
ateg
orie
s
Inte
grat
ed U
nit o
f Ana
lysi
s (IU
A)
Wat
er R
esou
rce
Clas
s fo
r IUA
Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Bi
ophy
sica
l Nod
e Na
me
TEC
Natu
ral M
AR
(mill
ion
m3 /a
)
A1 U
pper
Bre
ede
Trib
utar
ies
II
H10
B
Titu
s R
iver
N
iv3
C
21.4
5 H
10C
Koek
edou
Riv
er
Niv
1 D
18
.80
H10
C
D
war
s R
iver
N
iv2
C
74.9
0 H
10C
Bree
de R
iver
nv
i4
C
126.
90
H10
D
W
itels
Riv
er
Niv
4 A
84.3
0 H
10D
Bree
de R
iver
N
vi3
C
252.
80
H10
E
Witt
e R
iver
N
vii1
6 A
42.5
0 H
10F
W
itte
Riv
er
Niv
5 A
141.
70
H10
F
Wab
oom
s R
iver
N
iv6
D
7.40
H
10F
A1-R
01
Bree
de R
iver
N
viii1
D
43
4.90
H
10J
El
ands
Riv
er
Niv
40
B 58
.10
H10
J
Krom
Riv
er
Niv
41
B 8.
90
H10
J A1
-R02
M
olen
aars
Riv
er
Nvi
i2
B 10
5.60
A2 B
reed
e W
orin
g tri
buta
ries
III
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G
Sl
angh
oek
Riv
er
Niv
7 D
32
.60
H10
G
Br
eede
Riv
er
Niii1
D
49
7.60
H
10J
Sm
albl
aar R
iver
N
iv42
E
191.
20
H10
H
Ja
n du
Toi
t Riv
er
Niv
8 D
17
.90
H10
H
H
artb
ees
Riv
er
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i6
D
4.00
H
10H
Har
tbee
s R
iver
N
iv9
D
10.3
0 H
10K
H
olsl
oot R
iver
N
iv12
C
11
9.60
H
10H
Bree
de R
iver
N
v3
C
850.
90
H20
F
Hex
Riv
er
Nv1
8 D
10
.90
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G
A2-R
03
Hex
Riv
er
Nvi
i7
C
102.
80
H20
H
H
ex R
iver
N
iv10
D
10
7.10
H
40C
Bree
de R
iver
N
ii1
C
957.
90
H40
B
Koo
Riv
er
Nvi
i5
D
0.90
H
40C
Nuy
Riv
er
Niv
11
D/E
29
.30
H30
B
King
na R
iver
N
iv18
D
27
.80
H30
C
Pi
eter
sfon
tein
Riv
er
Niv
20
D
17.3
0 H
30D
Keis
ie R
iver
N
vii9
D
21
.10
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 297
7In
tegr
ated
Uni
t of A
naly
sis
(IUA)
W
ater
Res
ourc
e Cl
ass
for I
UA
Qua
tern
ary
Catc
hmen
t RU
Re
sour
ce N
ame
Biop
hysi
cal N
ode
Nam
e TE
C Na
tura
l MAR
(m
illio
n m
3 /a)
A3 M
iddl
e Br
eede
R
enos
terv
eld
III
H40
D
D
orin
g R
iver
N
iv13
E
47.5
0 H
40F
A3-R
04
Bree
de R
iver
N
vii8
C
/D
1042
.80
H40
F
Bree
de R
iver
N
i1
A/B
1043
.40
H40
G
Po
esje
nels
Riv
er
Nvi
i11
D
16.1
0 H
40H
Vink
Riv
er
Niv
15
D/E
15
.60
H40
J
Wille
m N
els
Riv
er
Nvi
ii2
D/E
5.
20
H40
J
Bree
de R
iver
N
vii1
9 A/
B 10
81.9
0 H
40K
Ke
iser
s R
iver
N
vii1
2 D
7.
10
H40
K
Keis
ers
Riv
er
Niv
14
D
12.6
0 H
40L
Br
eede
Riv
er
Nvi
1 D
10
99.9
0 H
30E
Ko
gman
sklo
of R
iver
N
ii2
D
52.0
0 H
50A
Br
eede
Riv
er
Niii3
D
11
53.4
0 H
50B
A3-R
05
Bree
de R
iver
N
i2
D
1170
.10
B4 U
pper
Riv
erso
nder
end
III
H60
B B4
-R06
D
u To
its R
iver
N
vii1
0 B
43.9
0 H
60D
B4
-R07
R
ivie
rson
dere
nd R
iver
N
v7
C
370.
20
H60
E B4
-R08
Ba
viaa
ns R
iver
N
iv28
B
7.90
H
60E
Se
rsan
ts R
iver
N
iv29
D
4.
50
H60
F
Gob
os R
iver
N
iv30
C
12
.40
H60
F B4
-R09
R
ivie
rson
dere
nd R
iver
N
v9
D
413.
70
F9 L
ower
Riv
erso
nder
end
III
H60
G
Kw
arte
l Riv
er
Niv
31
D
10.7
0 H
60H
Soet
mel
ksvl
ei R
iver
N
iv33
D
4.
00
H60
H
Sl
ang
Riv
er
Niv
34
D
2.10
H
60H
Riv
iers
onde
rend
Riv
er
Nv1
0 D
44
2.90
H
60J
R
ivie
rson
dere
nd R
iver
N
v11
D
463.
10
H60
K
Kwas
sadi
e R
iver
N
iv35
E
5.90
H
60K
R
ivie
rson
dere
nd R
iver
N
v12
D
474.
50
H60
L F9
-R10
R
ivie
rson
dere
nd R
iver
N
i3
D
483.
80
298 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
8In
tegr
ated
Uni
t of A
naly
sis
(IUA)
W
ater
Res
ourc
e Cl
ass
for I
UA
Qua
tern
ary
Catc
hmen
t RU
Re
sour
ce N
ame
Biop
hysi
cal N
ode
Nam
e TE
C Na
tura
l MAR
(m
illio
n m
3 /a)
B5 O
verb
erg
Wes
t II
G40
C
B5-R
11
Palm
iet R
iver
Pi
ii1
C
250.
40
G40
C
W
itklip
pies
kloo
f Riv
er
Piv1
0 D
15
.10
G40
C
Pa
lmie
t Riv
er
Piv9
D
78
.70
G40
C
Pa
lmie
t Riv
er
Pvi1
D
10
0.50
G
40C
Klip
drif
Riv
er
Piv8
D
13
.60
G40
D
Kl
ein-
Palm
iet R
iver
Pi
v4
D
13.7
0 G
40D
Krom
/Rib
bok
Riv
er
Piv7
D
27
.50
G40
D
B5-R
12
Palm
iet R
iver
Pi
ii2
B/C
20
6.70
G
40D
Dw
ars/
Louw
s R
iver
Pi
v12
C
25.2
0 G
40D
B5
-R13
Pa
lmie
t Riv
er
Piii3
B
250.
50
G40
D
B5-E
01
Palm
iet E
stua
ry
Pxi1
C
17
3.44
H16
Ove
rber
g W
est C
oast
al
II
G40
B H
16-E
02
Buffe
ls E
stua
ry
Bxi1
B
8.80
G
40B
H16
-E03
R
ooie
ls E
stua
ry
Bxi2
B
9.44
G
40F
Sw
art R
iver
N
iv43
E
42.1
0 G
40E
Bo
t Riv
er
Niii5
C
74
.10
G40
G
H16
-E04
Bo
t Est
uary
N
xi6
C
77.6
7 G
40H
H
16-E
05
Onr
us E
stua
ry
Nxi
8 D
2.
49
F10
Ove
rber
g Ea
st
Ren
oste
rvel
d II
G40
J
Har
tbee
s R
iver
N
ii4
D
18.4
0 G
40K
St
eenb
ok R
iver
N
iv45
E
10.8
0 G
40K
F10-
R14
Kl
ein
Riv
er
Nv2
3 C
/D
38.3
8 G
50G
Sout
Riv
er
Nii6
D
4.
20
G50
H
D
eHoo
pVle
i Riv
er
Nii7
B
27.1
0
H17
Ove
rber
g Ea
st F
ynbo
s II
G40
L H
17-E
06
Klei
n Es
tuar
y N
xi7
C
51.2
1 G
40M
Uilk
raal
Riv
er
Nx8
C
2.
40
G40
M
H17
-E07
U
ilkra
al E
stua
ry
Nxi
5 C
/D
6.28
G
50A
H17
-E08
R
atel
Est
uary
N
xi3
C
3.42
G
50B
H17
-R15
N
uwej
aar R
iver
N
i4
C/D
12
.50
G50
C
H
euni
ngne
s R
iver
N
vii1
5 C
/D
17.8
0 G
50C
Heu
ning
nes
Riv
er
Niv
44
C/D
18
.80
G50
D
H17
-R16
Ka
rs R
iver
N
v24
B/C
15
.40
G50
E
Kars
Riv
er
Nii5
E
21.6
0 G
50F
H17
-E09
H
euni
ngne
s Es
tuar
y N
xi1
A/B
30.5
6 G
50K
H17
-E10
Kl
ipdr
ifsfo
ntei
n Es
tuar
y Bx
i3
A 0.
75
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 299
9In
tegr
ated
Uni
t of A
naly
sis
(IUA)
W
ater
Res
ourc
e Cl
ass
for I
UA
Qua
tern
ary
Catc
hmen
t RU
Re
sour
ce N
ame
Biop
hysi
cal N
ode
Nam
e TE
C Na
tura
l MAR
(m
illio
n m
3 /a)
F11
Low
er B
reed
e R
enos
terv
eld
II
H70
A
Leeu
Riv
er
Niv
24
E 5.
80
H70
B
Klip
Riv
er
Niv
24a
E 24
.50
H70
B
Bree
de R
iver
N
v2
C
1701
.40
H70
C
H
uis
Riv
er
Nvi
i14
C
3.20
H
70C
Trad
ouw
Riv
er
Nii3
B
19.4
0 H
70F
Bu
ffelja
gs R
iver
N
iv25
E
119.
40
H70
G
F11-
R17
Br
eede
Riv
er
Niii4
C
18
32.7
0 H
70H
Bree
de R
iver
N
viii3
B
1841
.20
H70
J
Slan
g R
iver
N
iv26
E
10.0
0 H
70K
F11-
E11
Bree
de E
stua
ry
Nxi
2 B
1022
.56
C6
Gam
ka B
uffe
ls
II
J11C
Buffe
ls R
iver
gi
v34
A 13
.10
J11F
Buffe
ls R
iver
gv
25
C
24.3
0 J2
1A
G
amka
Riv
er
gv18
B
26.7
0 J2
1D
G
amka
Riv
er
giv3
B
31.9
0 J2
2F
Ko
ekem
oers
Riv
er
giv1
C
7.
40
J22K
Leeu
Riv
er
giv2
C
17
.10
J23C
Gam
ka R
iver
gv
17
B 58
.20
J23F
Gam
ka R
iver
gi
v21
B 68
.00
J23J
Gam
ka R
iver
gv
27
C
69.6
0 J2
4D
D
wyk
a R
iver
gv
14
A 4.
00
E8 T
ouw
s III
J12C
Yste
rdam
s R
iver
gi
v30
D
2.80
J1
2B
D
onki
es R
iver
gi
v31
D
6.90
J1
2D
To
uws
Riv
er
giv2
8 D
16
.40
J12H
Touw
s R
iver
gi
v27
B 26
.40
J12K
Brak
Riv
er
giv2
6 C
2.
90
J12L
E8
-R18
D
orin
g R
iver
gv
iii1
C/D
2.
90
J12L
E8
-R19
To
uws
Riv
er
gv5
B/C
33
.50
J11H
E8
-R20
Bu
ffels
Riv
er
gv4
C
27.4
0 J1
1J
E8-R
21
Gro
ot R
iver
gv
6 D
29
.70
J11K
Gro
ot R
iver
gi
v32
D
30.5
0 J1
3A
G
root
Riv
er
gv7
C
77.7
0 J1
3C
E8-R
22
Gro
ot R
iver
gi
i3
B 78
.10
300 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
10
Inte
grat
ed U
nit o
f Ana
lysi
s (IU
A)
Wat
er R
esou
rce
Clas
s fo
r IUA
Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Bi
ophy
sica
l Nod
e Na
me
TEC
Natu
ral M
AR
(mill
ion
m3 /a
)
D7
Gou
ritz-
Olif
ants
; Low
er
Gou
ritz
III
J25A
D
7-R
23
Gam
ka R
iver
gi
v20
C
79.8
0 J2
5D
N
els
Riv
er
giv1
8 E
10.9
0 J2
5E
G
amka
Riv
er
gii2
C
11
1.80
J3
1C
D7-
R24
O
lifan
ts R
iver
gi
ii2
C
11.8
0 J3
2E
Tr
aka
Riv
er
giv1
5 C
/D
2.80
J3
3B
O
lifan
ts R
iver
gv
33
D
25.0
0 J3
3D
M
eirin
gs R
iver
gv
21
C
21.4
0 J3
3F
O
lifan
ts R
iver
gi
v11
E 79
.90
J34C
D
7-R
25
Kam
man
assi
e R
iver
gv
36
C/D
41
.20
J34F
Kam
man
assi
e R
iver
gi
v10
D
59.2
0 J3
5A
G
robb
elaa
rs R
iver
gv
ii2
C
16.9
0 J3
5A
G
robb
elaa
rs R
iver
gi
v9
E 30
.70
J35D
Olif
ants
Riv
er
gv19
E
224.
50
J35F
Olif
ants
Riv
er
giv1
7 D
25
3.40
F13
Low
er G
ourit
z II
J40A
Gou
ritz
Riv
er
giv1
6 C
39
4.90
J4
0B
F13-
R26
G
ourit
z R
iver
gi
4 C
48
9.10
J4
0C
G
ourit
z R
iver
gv
28
D
21.4
0 J4
0D
G
ourit
z R
iver
gv
9 C
57
1.80
J4
0E
F13-
E12
Gou
ritz
Estu
ary
Gxi
1 C
29
4.69
F12
Dui
wen
hoks
III
H80
B
Dui
wen
hoks
Riv
er
giii5
E
62.5
0 H
80C
Dui
wen
hoks
Riv
er
gv11
D
75
.10
H80
D
F12-
R27
D
uiw
enho
ks R
iver
gi
ii8
D
83.3
0 H
80E
F12-
E13
Dui
wen
hoks
Est
uary
G
xi2
B 73
.65
I18
Hes
sequ
a III
H90
B
Korin
te R
iver
gi
ii6
D
34.2
0 H
90A
I18-
R28
G
ouko
u R
iver
gi
ii7
C/D
50
.90
H90
C
G
ouko
u R
iver
gv
10
D
92.9
0 H
90D
Gou
kou
Riv
er
gv41
C
10
4.90
H
90E
I18-
E14
Gou
kou
Estu
ary
Gxi
3 C
89
.94
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 301
11
Inte
grat
ed U
nit o
f Ana
lysi
s (IU
A)
Wat
er R
esou
rce
Clas
s fo
r IUA
Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Bi
ophy
sica
l Nod
e Na
me
TEC
Natu
ral M
AR
(mill
ion
m3 /a
)
G14
Gro
ot B
rak
III
K10D
Bran
dwag
Riv
er
giv2
5 D
17
.90
K10E
Moo
rdku
il R
iver
gv
39
D
15.7
0 K1
0F
G14
-E15
Kl
ein-
Brak
est
uary
G
xi4
C
39.1
0 K2
0A
G14
-R29
G
root
-Bra
k R
iver
gv
iii2
B/C
15
.30
K20A
Varin
g R
iver
gv
iii12
C/D
6.
00
K20A
Varin
g R
iver
gv
iii3
D
8.40
K2
0A
G
root
-Bra
k R
iver
gv
ii7
B/C
27
.00
K20A
G
14-E
16
Gro
ot-B
rak
estu
ary
Gxi
5 E
16.7
7 K1
0A
G14
-E17
Bl
inde
est
uary
G
xi19
B
0.90
K1
0A
G14
-E18
Tw
eeku
ilen
estu
ary
Gxi
20
D
0.94
K1
0A
G14
-E19
G
eric
ke e
stua
ry
Gxi
21
D
0.29
K1
0B
G14
-E20
H
arte
nbos
est
uary
G
xi22
D
4.
15
G15
Coa
stal
II
K30A
Maa
lgat
e R
iver
gv
iii4
D
15.3
0 K3
0A
M
aalg
ate
Riv
er
gvii8
D
22
.84
K30A
G
15-E
21
Maa
lgat
e Es
tuar
y G
xi6
B 29
.81
K30B
G
15-R
30
Mal
gas
Riv
er
gvii9
C
8.
16
K30B
Gw
aing
Riv
er
gviii6
E
13.9
2 K3
0B
G15
-E22
G
wai
ng E
stua
ry
Gxi
7 B
22.6
4 K3
0C
Sw
art R
iver
gv
iii7
D
16.1
0 K3
0C
G15
-R31
Ka
aim
ans
Riv
er
gvii1
1 B
17.5
3 K3
0C
Si
lver
Riv
er
gviii8
B
14.9
0 K3
0C
G15
-E23
Ka
aim
ans
Estu
ary
Gxi
8 B
35.3
2 K3
0D
To
uws
Riv
er
gvii1
2 B
16.7
0 K3
0D
Kl
ein
Riv
er
gx8
D
2.50
K3
0D
G15
-E24
W
ilder
ness
Est
uary
G
xi9
B 29
.01
K40A
G
15-R
32
Die
p R
iver
gi
ii10
B 12
.40
K40B
Hoe
kraa
l Riv
er
giii1
3 B
27.9
0 K4
0C
G15
-R33
Ka
rata
ra R
iver
gv
ii13
B 11
.20
K40C
Kara
tara
Riv
er
giii1
1 B
33.9
0 K4
0D
G15
-E25
Sw
artv
lei E
stua
ry
Gxi
10
B 76
.19
K40E
G
15-R
34
Gou
kam
ma
Riv
er
gviii9
B/
C
30.4
0 K4
0E
G15
-E26
G
ouka
mm
a Es
tuar
y G
xi11
B
46.2
5 K5
0A
G15
-R35
Kn
ysna
Riv
er
gvii1
4 B
26.5
0 K5
0A
Kn
ysna
Riv
er
giii1
2 B
46.6
0
302 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
12
Inte
grat
ed U
nit o
f Ana
lysi
s (IU
A)
Wat
er R
esou
rce
Clas
s fo
r IUA
Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Bi
ophy
sica
l Nod
e Na
me
TEC
Natu
ral M
AR
(mill
ion
m3 /a
)
K50B
G
15-R
36
Gou
na R
iver
gv
iii11
A/B
27.6
0 K5
0B
G15
-E27
Kn
ysna
Est
uary
G
xi12
B
68.8
3 K6
0G
N
oetz
ie R
iver
gv
iii10
B 4.
80
K60G
G
15-E
28
Noe
tsie
est
uary
G
xi13
B
3.59
K6
0G
Pi
esan
g R
iver
gx
3 E
7.30
K6
0G
G15
-E29
Pi
esan
g Es
tuar
y G
xi14
C
5.
12
K60C
G
15-R
37
Keur
boom
s R
iver
gi
v6
C
46.1
0 K6
0D
Pa
lmie
t Riv
er
giv5
A
42.1
0 K6
0E
Ke
urbo
oms
Riv
er
gx9
B 91
.30
K60F
Bito
u R
iver
gi
v4
C
23.6
0 K6
0G
G15
-E30
Ke
urbo
oms
Estu
ary
Gxi
15
A 13
1.60
K7
0A
Bu
ffels
Riv
er
gx4
B/C
1.
80
K70A
G
15-E
31
Mat
jies
Estu
ary
Gxi
16
C
3.25
K7
0A
So
ut R
iver
gx
5 B
3.80
K7
0A
G15
-E32
So
ut(O
os) E
stua
ry
Gxi
17
A 5.
99
K70A
G
15-E
33
Gro
ot(W
es) E
stua
ry
Gxi
23
B 11
.10
K70B
Blou
kran
s R
iver
gv
ii15
B 31
.20
K70B
G
15-E
34
Blou
kran
s Es
tuar
y G
xi18
A
11.1
0
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 303
13
Tabl
e 2:
Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s A1
Upp
er B
reed
e Tr
ibut
arie
s
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
A1 Upper Breede Tributaries
II
H10F
A1-R01
Breede River
nviii1
D
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Bree
de R
iver
in
a c
ondi
tion
equa
l to
or
bette
r tha
n a
D c
ateg
ory.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 1.651
0 1.651
0 0 0 0 0
5.502 0
32.397 13.009
Low 6.667 4.007 2.105
1.93 1.268 1.754 2.343 3.544 6.452 7.719
10.526 7.81
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) R
iver
nut
rient
leve
ls m
ust
be m
aint
aine
d in
a
mes
otro
phic
or b
ette
r co
nditi
on.
≤ 0.
075
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
th
at d
o no
t adv
erse
ly a
ffect
aq
uatic
eco
syst
ems
≤ 55
milli
Siem
ens/
met
re E
C (9
5th
perc
entil
e)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n D
O ≥
6 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Toxi
ns
Amm
onia
To
xici
ty le
vels
mus
t not
po
se a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
073
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) At
razi
ne
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) En
dosu
lfan
≤ 0.
0013
milli
gram
s pe
r litr
e (9
5thpe
rcen
tile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in
D c
ateg
ory
(42-
57%
). D
cat
egor
y (4
2-57
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a D
cat
egor
y (4
2-57
%).
D c
ateg
ory
(42-
57%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Upp
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s >
50%
Biot
a Fi
sh
FRAI
sco
re
FRAI
sho
uld
be w
ithin
a D
ca
tego
ry (4
2-57
%).
D c
ateg
ory
(42-
57%
)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
D D
cat
egor
y (4
2-57
%)
304 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
14
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Inve
rtebr
ate
dive
rsity
ca
tego
ry (4
2-57
%)
SASS
sco
re >
70,
ASP
T >
5.0
Num
ber o
f fam
ilies
> 15
fam
ilies
at a
bund
ance
s A
- C
A1 Upper Breede Tributaries
II
H10J
A1-R02
Molenaars River
nvii2
B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Mol
enaa
rs
Riv
er in
a c
ondi
tion
equa
l to
or b
ette
r tha
n a
B ca
tego
ry.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 3.434 0.454
0 0
0.454 0
0.454 1.797 1.797 8.005 3.434 3.434
Low 3.381 2.506 1.584 1.022 0.869 0.909 1.356 2.479 3.588 4.149
4.39 4.002
Qua
lity
Nut
rient
s Ph
osph
ate
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at
an o
ligot
roph
ic c
ondi
tion.
≤ 0
.025
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
) To
tal i
norg
anic
ni
troge
n (T
IN)
≤ 0
.70
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
th
at d
o no
t adv
erse
ly a
ffect
aq
uatic
eco
syst
ems
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
4.5
≥ pH
≤ 7
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Toxi
ns
Amm
onia
To
xici
ty le
vels
mus
t not
po
se a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
073
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Idea
l cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in
B ca
tego
ry (4
2-57
%).
B ca
tego
ry (8
2-87
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a B
cat
egor
y (8
2 -87
%)
B ca
tego
ry (8
2-87
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r ab
unda
nce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s
Biot
a Fi
sh
FRAI
sco
re
FRAI
sho
uld
be w
ithin
a E
ca
tego
ry (2
2-37
%).
E ca
tego
ry (2
2-37
%)
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 305
15
Tabl
e 3:
Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s A2
Bre
ede
Wor
king
Trib
utar
ies
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
A2 Breede Working Tributaries
III
H20G
A2-R03
Hex River
nvii7
C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Hex
R
iver
in a
con
ditio
n eq
ual t
o or
bet
ter
than
a C
cat
egor
y.
Mai
nten
ance
low
flow
s M
aint
enan
ce h
igh
flow
s
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.387 0.395
0 0 0 0 0
1.137 1.098 6.801 2.797 2.803
Low 2.998 2.649 1.888
1.18 1.066 0.943 1.142 1.652
2.26 3.067
3.54 3.333
Qua
lity
Nut
rient
s Ph
osph
ate
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
that
do
not
adv
erse
ly a
ffect
aq
uatic
eco
syst
ems
≤ 55
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Toxi
ns
Amm
onia
To
xici
ty le
vels
mus
t not
po
se a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
073
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) At
razi
ne
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) En
dosu
lfan
≤ 0.
0013
milli
gram
s pe
r litr
e (9
5thpe
rcen
tile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in
a C
/D c
ateg
ory
(57-
62%
). C
/D c
ateg
ory
(57-
62%
)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a D
cat
egor
y (4
2-57
%).
D c
ateg
ory
(42-
57%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Biot
a
Fish
FR
AI s
core
FR
AI s
houl
d be
with
in a
D
cate
gory
(42-
57%
). D
cat
egor
y (4
2-57
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
C
cate
gory
(62 -
77%
).
C c
ateg
ory
(62-
77%
) In
verte
brat
e di
vers
ity
SASS
sco
re >
100
, ASP
T >
6.3
306 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
16
Tabl
e 4:
Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s A3
Mid
dle
Bree
de R
enos
terv
eld
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
A3 Middle Breede Renosterveld
III
H40F
A3-R04
Breede River
nvii8
C
/D Q
uant
ity
Low
flow
s H
igh
flow
s
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Bree
de R
iver
in
a c
ondi
tion
equa
l to
or
bette
r tha
n a
C/D
cat
egor
y.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 3.704
0 0 0 0 0 0
16.107 32.902 76.916 31.869 18.949
Low 14.575
8.743 3.449 4.796 1.461 3.181 4.262
11.161 22.326 36.912 33.451 26.791
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
that
do
not
adv
erse
ly a
ffect
aq
uatic
eco
syst
ems
≤ 55
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Toxi
ns
Amm
onia
To
xici
ty le
vels
mus
t not
po
se a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
073
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) At
razi
ne
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) En
dosu
lfan
≤ 0.
0013
milli
gram
s pe
r litr
e (9
5thpe
rcen
tile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in
C c
ateg
ory
(52-
67%
). C
cat
egor
y (6
2-77
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a C
cat
egor
y (5
2-67
%).
C c
ateg
ory
(62-
77%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Upp
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s >
30%
Biot
a Fi
sh
FRAI
sco
re
FRAI
sho
uld
be w
ithin
a D
ca
tego
ry (4
2-57
%).
D c
ateg
ory
(42-
57%
)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
D
D c
ateg
ory
(42-
57%
)
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 307
17
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Inve
rtebr
ate
dive
rsity
ca
tego
ry (4
2-57
%).
SASS
sco
re <
45,
ASP
T >
4.3
Num
ber o
f fam
ilies
> 14
fam
ilies
at A
- C
abu
ndan
ce
A3 Middle Breede Renosterveld
III
H50B
A3-R05
Breede River
ni2
D
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Bree
de R
iver
in
a c
ondi
tion
equa
l to
or
bette
r tha
n a
D c
ateg
ory.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0
3.227 0 0 0 0 0
37.538 7.323
36.389 16.731
0
Low 13.406
8.861 3.095 2.454 2.911 1.301 3.367 4.395 9.942
13.992 19.944 17.315
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt
stat
e le
vels
. 95
%til
e ≤
220
milli
Siem
ens/
met
re E
C
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Wat
er te
mpe
ratu
re
No
mor
e th
an 2
°C c
hang
e in
nat
ural
m
onth
ly ra
nge
(min
imum
and
max
imum
)
Toxi
ns
n/a
Toxi
city
leve
ls m
ust n
ot
pose
a th
reat
to a
quat
ic
ecos
yste
ms.
n/
a
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n.
95%
tile
≤ 16
5 cf
u/10
0ml E
sche
richi
a co
li
308 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
18
Tabl
e 5:
Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s B4
Riv
erso
nder
end
Thee
wat
ers
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
B4 Riversonderend Theewaters
III
H60B
B4-R06
Du Toits River nv
ii10
B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Du
Toits
Riv
er
in a
con
ditio
n eq
ual t
o or
be
tter t
han
a B
cate
gory
.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.369 0.122
0 0 0 0 0
1.794 2.585 3.218
0.54 1.081
Low 1.406 1.041 0.658 0.425 0.362 0.376 0.564 1.032 1.491 1.725 1.825 1.663
Qua
lity
Nut
rient
s Ph
osph
ate
(PO
4-P) N
utrie
nt le
vels
mus
t be
mai
ntai
ned
in th
e riv
er in
an
olig
otro
phic
con
ditio
n
≤ 0
.025
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
) To
tal i
norg
anic
ni
troge
n (T
IN)
≤ 0
.70
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
mus
t be
mai
ntai
ned
in a
n Id
eal
cate
gory
≤
30 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Toxi
ns
Atra
zine
To
xici
ty le
vels
mus
t not
po
se a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Idea
l cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
B4 Riversonderend Theewaters
III
H60D
B4-R07
Riviersonderend River
nv7
C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Riv
iers
onde
rend
Riv
er in
a
cond
ition
equ
al to
or b
ette
r th
an a
D c
ateg
ory.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.65 0.65
0.426 0.437 0.451
0 0
3.079 2.983 7.927
19.787 7.927
Low 10.539
6.134 1.421 0.799 0.593 0.542
2.32 3.019 7.023
10.297 13.51
11.009
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
that
do
not
adv
erse
ly a
ffect
aq
uatic
eco
syst
ems
≤ 55
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
pH ra
nge
pH, t
empe
ratu
re, a
nd
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 309
19
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
varia
bles
Dis
solv
ed o
xyge
n
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
≥ 6
milli
gram
s lit
re (5
th p
erce
ntile
)
Toxi
ns
Atra
zine
To
xici
ty le
vels
mus
t not
po
se a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
pe
rcen
tile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
B4 Riversonderend Theewaters
III
H60E
B4-R08
Baviaans River
niv2
8 B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Bavi
aans
Riv
er
in a
con
ditio
n eq
ual t
o or
be
tter t
han
a B
cate
gory
.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.026
0 0 0
0.026 0
0.026 0.068 0.068 0.127 0.296 0.127
Low 0.292
0.24 0.109 0.117 0.059 0.029 0.049 0.029 0.092 0.153 0.197 0.247
Qua
lity
Nut
rient
s Ph
osph
ate
(PO
4-P) N
utrie
nt le
vels
mus
t be
mai
ntai
ned
in th
e riv
er a
t an
olig
otro
phic
con
ditio
n.
≤ 0
.025
milli
gram
s pe
r litr
e PO
4-P
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
0.7
0 m
illigr
ams
per l
itre
TIN
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for a
quat
ic
ecos
yste
ms
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
4.5
≥ pH
≤ 7
.0 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Idea
l cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in
B ca
tego
ry (8
2-87
%).
B ca
tego
ry (8
2-87
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a B
cat
egor
y (8
2 -87
%).
B ca
tego
ry (8
2-87
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r ab
unda
nce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s
310 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
20
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Upp
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s >
20%
Biot
a
Fish
FR
AI s
core
FR
AI s
houl
d be
with
in a
n A/
B ca
tego
ry (8
7-92
%).
A/B
cate
gory
(87-
92%
)
Inve
rtebr
ates
MIR
AI s
core
M
IRAI
sco
re to
be
with
in
A/B
cate
gory
(87 -
92%
).
A/B
cate
gory
(87-
92%
) In
verte
brat
e di
vers
ity
SASS
sco
re >
160
, ASP
T >
7.5
Num
ber o
f fam
ilies
> 15
fam
ilies
at a
bund
ance
s A
- C
B4 Riversonderend Theewaters
III
H60F
B4-R09
Riviersonderend River
nv9
D
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Riv
iers
onde
rend
Riv
er in
a
cond
ition
equ
al to
or b
ette
r th
an a
D c
ateg
ory.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0
0.726 0
0.488 0 0 0
3.442 3.334
8.86 22.114
3.334
Low 4.019 3.087 1.053 0.893 0.663 0.606 2.593
3.19 7.717
11.163 12.12
12.038
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
that
do
not
adv
erse
ly a
ffect
aq
uatic
eco
syst
ems
≤ 55
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
4.5
≥ pH
≤ 7
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Toxi
ns
Atra
zine
To
xici
ty le
vels
mus
t not
po
se a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in
D c
ateg
ory
(42-
57%
). D
cat
egor
y (4
2-57
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a D
cat
egor
y (4
2 -57
%).
D c
ateg
ory
(42-
57%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 311
21
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Upp
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s >
30%
Biot
a
Fish
FR
AI s
core
FR
AI s
houl
d be
with
in a
D
cate
gory
(42-
57%
). D
cat
egor
y (4
2-57
%)
Inve
rtebr
ates
MIR
AI s
core
M
IRAI
sco
re to
be
with
in
C/D
cat
egor
y (5
7-62
%).
C/D
cat
egor
y (5
7-62
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 4
0, A
SPT
scor
e >
4.3
Num
ber o
f fam
ilies
> 25
fam
ilies
at a
bund
ance
A -
C
Tabl
e 6:
Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s F9
Low
er B
reed
e Re
nost
erve
ld
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
F9 Lower Breede Renosterveld
III
H60L
F9-R10
Riviersonderend River
ni3
D
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Riv
iers
onde
rend
Riv
er in
a
cond
ition
equ
al to
or b
ette
r th
an a
D c
ateg
ory.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0
0.849 0
0.571 0 0 0
4.024 3.899 10.36
25.859 3.899
Low 4.699 3.609 1.231 1.044 0.775 0.709 3.032
3.73 9.023
13.054 14.173 14.076
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
that
do
not
adv
erse
ly a
ffect
aq
uatic
eco
syst
ems
95th
%til
e ≤
85 m
illiSi
emen
s/m
etre
EC
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Toxi
ns
Atra
zine
To
xici
ty le
vels
mus
t not
po
se a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
079
milli
gram
s pe
r litr
e (9
5thpe
rcen
tile)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
312 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
22
Tabl
e 7:
Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s B5
Ove
rber
g W
est
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
B5 Overberg West
II
G40C
B5-R11
Palmiet River
piii1
C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
lo
w fl
ows
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Palm
iet R
iver
in a
co
nditi
on e
qual
to o
r bet
ter t
han
a B
cate
gory
.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.413 0.093
0 0 0 0 0
0.723 1.413
2.17 0.435 0.871
Low 1.438 1.054
0.56 0.267 0.179 0.169 0.266 0.604 1.127 1.523
1.73 1.69
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) N
utrie
nt le
vels
mus
t be
mai
ntai
ned
in th
e riv
er in
an
olig
otro
phic
con
ditio
n.
≤ 0
.025
milli
gram
s pe
r litr
e PO
4-P
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
0.7
0 m
illigr
ams
per l
itre
TIN
Salts
El
ectri
cal
cond
uctiv
ity
(EC
)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
that
do
not
adve
rsel
y af
fect
aqu
atic
ec
osys
tem
s
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
4.5
≥ pH
≤ 7
.0 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed
oxyg
en
≥ 8
milli
gram
s pe
r litr
e (5
th p
erce
ntile
)
Toxi
ns
Atra
zine
To
xici
ty le
vels
mus
t not
pos
e a
thre
at to
aqu
atic
eco
syst
ems.
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in D
ca
tego
ry (4
2-57
%).
B ca
tego
ry (8
2-87
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a B
/C c
ateg
ory
(77-
82%
). B/
C c
ateg
ory
(77-
82%
)
Biot
a
Fish
FR
AI s
core
FR
AI s
houl
d be
with
in a
n E
cate
gory
(22-
37%
). E
cate
gory
(22-
37%
)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
B/C
ca
tego
ry (7
7 -82
%).
B/C
cat
egor
y (7
7-82
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
10, A
SPT
> 6.
5
Num
ber o
f fa
milie
s
Five
fam
ilies,
Cor
ydal
idae
, Elm
idae
, H
ydro
psyc
hida
e, C
ordu
lidae
, C
hlor
ocyp
hida
e
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 313
23
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
B5 Overberg West
II
G40D
B5-R12
Palmiet River
piii2
B/
C Q
uant
ity
Low
flow
s H
igh
flow
s
Mai
nten
ance
lo
w fl
ows
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Palm
iet R
iver
in a
co
nditi
on e
qual
to o
r bet
ter t
han
a B/
C c
ateg
ory.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 1.67 0.38
0 0 0 0 0
3.643 6.722 9.654
1.88 3.759
Low 7.642 5.516 2.919 1.374 0.943 0.898 1.512 3.519 6.382 8.317 9.401 8.932
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) N
utrie
nt le
vels
mus
t be
mai
ntai
ned
in th
e riv
er a
t a
mes
otro
phic
or b
ette
r con
ditio
n. ≤
0.07
5 m
illigr
ams/
litre
(50th
per
cent
ile)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity
(EC
)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
that
do
not
adve
rsel
y af
fect
aqu
atic
ec
osys
tem
s
≤ 55
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed
oxyg
en
≥ 6
milli
gram
s lit
re (5
th p
erce
ntile
)
Toxi
ns
Atra
zine
Toxi
city
leve
ls m
ust n
ot p
ose
a th
reat
to a
quat
ic e
cosy
stem
s.
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
Iron
(Mn)
≤
0.1
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) M
anga
nese
(M
n)
≤ 0.
15 m
illigr
ams
per l
itre
(95th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in B
ca
tego
ry (8
2-87
%).
B ca
tego
ry (8
2-87
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
FRAI
sho
uld
be w
ithin
an
E ca
tego
ry (2
3-37
%).
B/C
cat
egor
y (7
7-82
%)
Biot
a
Fish
FR
AI s
core
VE
GR
AI le
vel 3
sho
uld
be
with
in a
B/C
cat
egor
y (7
7-82
%).
E ca
tego
ry (2
2-37
%)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
B/C
ca
tego
ry (7
7-82
%).
B/C
cat
egor
y (7
7-82
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
10, A
SPT
> 6.
5
Num
ber o
f fa
milie
s
Five
fam
ilies,
Cor
ydal
idae
, Elm
idae
, H
ydro
psyc
hida
e, C
ordu
lidae
, C
hlor
ocyp
hida
e
314 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
24
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
B5 Overberg West
II
G40D
B5-R13
Palmiet River
piii3
B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
lo
w fl
ows
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Palm
iet R
iver
in a
co
nditi
on e
qual
to o
r bet
ter t
han
a B
cate
gory
.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.049 0.097 1.907 0.954 0.954 0.954 0.954 8.623 2.385 8.302 14.21
9 0.049
Low 10.02
6 4.71 2.463 1.955 1.118 1.488 2.142 3.016 11.08
5 12.838 13.49
12.78
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) N
utrie
nt le
vels
mus
t be
mai
ntai
ned
in th
e riv
er a
t a
mes
otro
phic
or b
ette
r con
ditio
n. ≤
0.0
25 m
illigr
ams
per l
itre
(50th
pe
rcen
tile)
To
tal i
norg
anic
ni
troge
n (T
IN)
≤ 0
.70
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity
(EC
)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at le
vels
that
do
not
adve
rsel
y af
fect
aqu
atic
ec
osys
tem
s
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
5.0
≥ pH
≤ 7
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed
oxyg
en
≥ 8
milli
gram
s pe
r litr
e (5
th p
erce
ntile
)
Toxi
ns
Atra
zine
To
xici
ty le
vels
mus
t not
pos
e a
thre
at to
aqu
atic
eco
syst
ems.
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in a
B
cate
gory
(82-
87%
). B
cate
gory
(82-
87%
)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a B
cat
egor
y (8
2-87
%).
B ca
tego
ry (8
2-87
%)
Biot
a
Fish
FR
AI s
core
FR
AI s
houl
d be
with
in a
D
cate
gory
(42-
57%
). A
cate
gory
(92-
100%
)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
a B
ca
tego
ry (8
2 -87
%).
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
10, A
SPT
> 7.
0
Num
ber o
f fa
milie
s
9 fa
milie
s, E
phem
erel
lidae
, Le
ptop
hleb
idae
, Hep
tage
niid
ae,
Tric
oryt
hida
e, E
lmid
ae, C
oryd
alid
ae,
Tric
hopt
era
case
d ca
ddis
2 o
r > ty
pes,
Py
raus
tidae
, Ath
eric
idae
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 315
25
Tabl
e 8:
Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s F1
0 O
verb
erg
East
Ren
oste
rvel
d
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
F10 Overberg East Renosterveld
II
G40K
F10-R14
Klein River
nv23
C
/D Q
uant
ity
Low
flow
s H
igh
flow
s
Mai
nten
ance
lo
w fl
ows
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Klei
n R
iver
in a
co
nditi
on e
qual
to o
r bet
ter t
han
a C
/D c
ateg
ory.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.398 0.179
0 0 0 0 0
0.516 0.767 0.502 2.013 0.502
Low 0.465 0.358 0.199 0.091 0.065 0.064 0.126 0.196 0.293 0.413 0.603 0.541
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) N
utrie
nt le
vels
mus
t be
mai
ntai
ned
in th
e riv
er a
t a
mes
otro
phic
or b
ette
r con
ditio
n. ≤
0.07
5 m
illigr
ams/
litre
(50th
per
cent
ile)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity
(EC
)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt d
ay
leve
ls.
≤ 18
0 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed
oxyg
en
≥ 6
milli
gram
s lit
re (5
th p
erce
ntile
)
Toxi
ns
Atra
zine
To
xici
ty le
vels
mus
t not
pos
e a
thre
at to
aqu
atic
eco
syst
ems.
≤
0.07
9 m
illigr
ams
per l
itre
(95th
per
cent
ile)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in C
ca
tego
ry (6
2-77
%).
C c
ateg
ory
(62-
77%
)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a D
cat
egor
y (4
2-57
%).
D c
ateg
ory
(42-
57%
)
Biot
a Fi
sh
FRAI
sco
re
FRAI
sho
uld
be w
ithin
a E
ca
tego
ry (2
2-37
%).
E ca
tego
ry (2
2-37
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
C
cate
gory
(62-
77%
). C
cat
egor
y (6
2-77
%)
316 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
26
Tabl
e 9:
Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s H1
7 O
verb
erg
East
Fyn
bos
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
H17 Overberg East Fynbos
II
H17
H17-R15
Nuwejaar River
ni4
C/D
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
lo
w fl
ows
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Nuw
ejaa
rs R
iver
in a
co
nditi
on e
qual
to o
r bet
ter t
han
a C
/D c
ateg
ory.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.115 0.052
0 0 0 0 0
0.129 0.232 0.108 0.393 0.108
Low 0.055 0.046
0.03 0.022 0.022
0.02 0.03
0.035 0.049 0.056 0.065 0.059
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) N
utrie
nt le
vels
mus
t be
mai
ntai
ned
in th
e riv
er a
t a
mes
otro
phic
or b
ette
r con
ditio
n.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l in
orga
nic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity
(EC
)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt d
ay le
vels
. ≤
170
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
hea
lth. 6.
5 ≥
pH ≤
8.5
(5th
and
95th
per
cent
iles)
D
isso
lved
ox
ygen
≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in a
D
cate
gory
(42-
57%
). D
cat
egor
y (4
2-57
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sc
ore
VEG
RAI
leve
l 3 s
houl
d be
with
in
an E
cat
egor
y (2
2-37
%).
E ca
tego
ry (2
2-37
%)
Biot
a Fi
sh
FRAI
sco
re
FRAI
sho
uld
be w
ithin
a E
ca
tego
ry (2
2-37
%).
E ca
tego
ry (2
2-37
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
D
cate
gory
(42-
57%
). D
cat
egor
y (4
2-57
%)
H17 Overberg East Fynbos
II
G50D
H17-R16
Kars River
nv24
B/
C Q
uant
ity
Low
flow
s H
igh
flow
s
Mai
nten
ance
lo
w fl
ows
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Kars
Riv
er in
a
cond
ition
equ
al to
or b
ette
r tha
n a
B/C
cat
egor
y.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.301 0.157
0 0 0 0 0
0.268 0.349
0.17 0.651
0.17
Low 0.322 0.282 0.168 0.121 0.109 0.119 0.191 0.204
0.25 0.255 0.304 0.283
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) N
utrie
nt le
vels
mus
t be
mai
ntai
ned
in th
e riv
er a
t a
mes
otro
phic
or b
ette
r con
ditio
n.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l in
orga
nic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 317
27
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Salts
El
ectri
cal
cond
uctiv
ity
(EC
)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt d
ay le
vels
. ≤
310
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
hea
lth. 6.
5 ≥
pH ≤
8.5
(5th
and
95th
perc
entil
es)
Dis
solv
ed
oxyg
en
≥ 6
milli
gram
s lit
re (5
th p
erce
ntile
)
Toxi
ns
Amm
onia
To
xici
ty le
vels
mus
t not
pos
e a
thre
at to
aqu
atic
eco
syst
ems.
≤ 0.
073
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) At
razi
ne
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th pe
rcen
tile)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in B
ca
tego
ry (8
2-87
%).
B ca
tego
ry (8
2-87
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sc
ore
VEG
RAI
leve
l 3 s
houl
d be
with
in a
B
cate
gory
(82-
87%
). B
cate
gory
(82-
87%
)
Biot
a Fi
sh
FRAI
sco
re
FRAI
sho
uld
be w
ithin
a E
ca
tego
ry (2
2-37
%).
E ca
tego
ry (2
2-37
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
B
cate
gory
(82-
87%
). B
cate
gory
(82-
87%
) Ta
ble
10: R
esou
rce
Qua
lity
Obj
ectiv
es fo
r RIV
ERS
in p
riorit
y Re
sour
ce U
nits
in th
e In
tegr
ated
Uni
t of A
naly
sis
F11
Low
er B
reed
e Re
nost
erve
ld
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
F11 Lower Breede Renosterveld
III
H70G
F11-R17
Breede River
niii4
C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Bree
de R
iver
in
a c
ondi
tion
equa
l to
or
bette
r tha
n a
B/C
cat
egor
y.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0
5.055 0 0 0 0
5.055 58.796 11.469 56.997 26.206
0
Low 42.827 28.026
9.569 7.407 8.604 3.827
10.237 13.818 31.627 44.934 64.391 55.658
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) N
utrie
nt le
vels
mus
t be
mai
ntai
ned
in th
e riv
er a
t a
mes
otro
phic
or b
ette
r co
nditi
on.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal c
ondu
ctiv
ity
(EC
)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
To
lera
ble
cate
gory
for
Irrig
atio
n w
ater
sup
ply.
≤ 27
0 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
pH ra
nge
pH, t
empe
ratu
re, a
nd
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
318 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
28
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
varia
bles
D
isso
lved
oxy
gen
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
m
aint
enan
ce o
f eco
syst
em
heal
th.
≥ 6
milli
gram
s lit
re (5
th p
erce
ntile
)
Wat
er te
mpe
ratu
re
No
mor
e th
atn2
°C c
hang
e in
nat
ural
m
onth
ly ra
nge
(min
imum
and
max
imum
)
Toxi
ns
Amm
onia
To
xici
ty le
vels
mus
t not
po
se a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
073
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) At
razi
ne
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
) En
dosu
lfan
≤ 0.
0013
milli
gram
s pe
r litr
e (9
5thpe
rcen
tile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for
full
cont
act r
ecre
atio
n.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d be
with
in
B ca
tego
ry (8
2-87
%).
B ca
tego
ry (8
2-87
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 3 s
houl
d be
w
ithin
a C
cat
egor
y (6
2 -77
%).
C c
ateg
ory
(62-
77%
) M
argi
nal z
one
cove
r ab
unda
nce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Upp
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s >
30%
Biot
a
Fish
FR
AI s
core
FR
AI s
houl
d be
with
in a
C
cate
gory
(62-
77%
). C
cat
egor
y (6
2-77
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
D
cate
gory
(42 -
57%
).
D c
ateg
ory
(42-
57%
) In
verte
brat
e di
vers
ity
SASS
sco
re >
40,
ASP
T sc
ore
> 4.
3 N
umbe
r of f
amilie
s >
15 fa
milie
s at
abu
ndan
ces
A - C
Ta
ble
11: R
esou
rce
Qua
lity
Obj
ectiv
es fo
r RIV
ERS
in p
riorit
y Re
sour
ce U
nits
in th
e In
tegr
ated
Uni
t of A
naly
sis
E8 T
ouw
s
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
E8 Touws
III
J12L
E8-R18
Doring River
gviii1
C
/D Q
uant
ity
Low
flow
s H
igh
flow
s
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Dor
ing
Riv
er a
n ec
olog
ical
con
ditio
n th
at is
eq
ual t
o or
bet
ter t
han
the
ecol
ogic
al c
ondi
tion
in s
umm
er
2014
(Cat
egor
y C
/D).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.031 0.031
0 0.031
0 0
0.079 0 0 0 0 0
Low 0.017 0.021 0.019 0.012 0.009 0.015 0.016 0.017 0.013
0.01 0.012 0.012
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 319
29
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt d
ay
leve
ls.
≤ 15
00 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
C
/D.
C/D
cat
egor
y (5
7-62
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at ~
58%
for
the
ripar
ian
zone
.
C/D
cat
egor
y (5
7-62
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s <
10%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 1
0%, t
erre
stria
l woo
dy
spec
ies
< 15
%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
C/D
(5
8.3%
). C
/D c
ateg
ory
(57-
62%
)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
D
(40 -
59%
) Cat
egor
y
D c
ateg
ory
(42-
57%
) In
verte
brat
e di
vers
ity
SASS
sco
re >
90,
ASP
T sc
ore
> 4.
5
Num
ber o
f fa
milie
s >
15 fa
milie
s at
abu
ndan
ces
A - C
E8 Touws
III
J12L
E8-R19
Touws River
gv5
B/C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Touw
s R
iver
an
ecol
ogic
al c
ondi
tion
that
is
equa
l to
or b
ette
r tha
n th
e ec
olog
ical
con
ditio
n in
sum
mer
20
14 (C
ateg
ory
C).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.183 0.354 0.274 0.246 0.407 0.204
1.37 0.446
0 0
0.433 0.175
Low 0.125 0.164 0.139 0.124 0.119 0.108 0.163 0.178 0.235 0.201 0.195 0.129
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt d
ay
leve
ls.
≤ 15
00 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
pH ra
nge
pH, t
empe
ratu
re, a
nd
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
320 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
30
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
varia
bles
D
isso
lved
oxy
gen
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
. ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
B
B
cate
gory
(82-
87%
)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at l
east
78
% %
for t
he ri
paria
n zo
ne.
B/C
cat
egor
y (7
7-82
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s <
5%
Upp
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s <
5%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
C/D
(59%
). C
/D c
ateg
ory
(57-
62%
)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
B/C
(7
8 - 8
2%) C
ateg
ory
B/C
cat
egor
y (7
7-82
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 4
5, A
SPT?
>4.0
Num
ber o
f fa
milie
s >
10 fa
milie
s, 5
with
SAS
S sc
ore
> 5,
ab
unda
nce
A-C
E8 Touws
III
J11H
E8-R20
Buffels River
gv4
C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Buffe
ls R
iver
an
ecol
ogic
al c
ondi
tion
that
is
equa
l to
or b
ette
r tha
n th
e ec
olog
ical
con
ditio
n in
sum
mer
20
14 (C
ateg
ory
C).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.517 1.588 0.517 1.588
0 0 0 0 0 0 0 0
Low 0.068 0.075 0.078
0.07 0.057 0.083 0.097 0.113 0.111
0.11 0.105 0.073
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt d
ay
leve
ls.
≤ 32
0 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 321
31
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
D
D
cat
egor
y (4
2-57
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at ~
57%
for
the
ripar
ian
zone
.
D c
ateg
ory
(42-
57%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 5
%, t
erre
stria
l woo
dy
spec
ies
< 5%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 1
0%, t
erre
stria
l woo
dy
spec
ies
< 30
%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
B/C
(79%
). B/
C c
ateg
ory
(77-
82%
)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
C
Cat
egor
y
C c
ateg
ory
(62-
77%
) In
verte
brat
e di
vers
ity
SASS
sco
re >
90,
ASP
T >
5.0
Num
ber o
f fa
milie
s >
15 fa
milie
s, 7
with
SAS
S sc
ore
> 6,
ab
unda
nces
A -
C
E8 Touws
III
J11J
E8-R21
Groot River
gv6
D
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Gro
ot R
iver
an
ecol
ogic
al c
ondi
tion
that
is
equa
l to
or b
ette
r tha
n th
e ec
olog
ical
con
ditio
n in
sum
mer
20
14 (C
ateg
ory
D).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.559 1.719 0.559 1.719
0 0 0 0 0 0 0 0
Low 0.016 0.018 0.019 0.016 0.015 0.022 0.024 0.027 0.029 0.027 0.027 0.018
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt d
ay
leve
ls.
≤ 32
0 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Toxi
ns
Atra
zine
To
xici
ty le
vels
mus
t not
pos
e a
thre
at to
aqu
atic
eco
syst
ems.
≤ 0.
079
milli
gram
s pe
r litr
e (9
5th p
erce
ntile
)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
322 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
32
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
E8 Touws
III
J13C
E8-R22
Groot River
gii3
B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Gro
ot R
iver
an
ecol
ogic
al c
ondi
tion
that
is
equa
l to
or b
ette
r tha
n th
e ec
olog
ical
con
ditio
n in
sum
mer
20
14 (C
ateg
ory
D).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.603 1.092 1.123 1.121 1.178 0.589 3.765 1.208
0 0
1.118 0.532
Low 0.583 0.746 0.752 0.732 0.637 0.593 0.852 0.803 0.903 0.791 0.808 0.587
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt d
ay
leve
ls.
≤ 62
0 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Tabl
e 12
: Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s D7
Gou
ritz-
Olif
ants
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
D7 Gouritz-Olifants
III
J25A
D7-R23
Gamka River
giv2
0 C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Gam
ka R
iver
an
ecol
ogic
al c
ondi
tion
that
is e
qual
to
or b
ette
r tha
n th
e ec
olog
ical
co
nditi
on in
sum
mer
201
4 (C
ateg
ory
C).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.342
0.94 2.707
0.94 0.94
2.707 0.94
0 0 0 0
0.342
Low 0.192 0.232 0.262 0.232 0.241 0.487 0.382
0.22 0.16
0.162 0.157 0.167
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter c
ondi
tion.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C) Sa
lt co
ncen
tratio
ns n
eed
to b
e m
aint
aine
d at
pre
sent
day
leve
ls. ≤
90 m
illiSi
emen
s/m
etre
(95th
perc
entil
e)
Syst
em
varia
bles
pH
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th pe
rcen
tiles
)
Dis
solv
ed
oxyg
en
≥ 6
milli
gram
s lit
re (5
th p
erce
ntile
)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 323
33
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
C
C c
ateg
ory
(62-
77%
)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at l
east
61%
fo
r the
ripa
rian
zone
.
C c
ateg
ory
(62-
77%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver a
bund
ance
Ex
otic
spe
cies
< 1
0%, t
erre
stria
l woo
dy
spec
ies
< 5%
U
pper
zon
e co
ver a
bund
ance
Ex
otic
spe
cies
< 1
0%, t
erre
stria
l woo
dy
spec
ies
< 15
%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
C (7
1.6%
). C
cat
egor
y (6
2-77
%)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
B/C
(78
- 82%
) Cat
egor
y
B/C
cat
egor
y (7
7-82
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
00, A
SPT
> 5.
5
Num
ber o
f fa
milie
s >
15 fa
milie
s, 5
with
SAS
S sc
ore
> 5,
ab
unda
nce
A - C
D7 Gouritz-Olifants
III
J31C
D7-R24
Olifants River
giii2
C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Olif
ants
Riv
er a
n ec
olog
ical
con
ditio
n th
at is
equ
al
to o
r bet
ter t
han
the
ecol
ogic
al
cond
ition
in s
umm
er 2
014
(Cat
egor
y C
/D).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.046
0.13 0.137 0.107 0.127 0.548 0.127 0.097
0 0
0.083 0.04
Low 0.035 0.055 0.057
0.05 0.079 0.109 0.068 0.053 0.036 0.037 0.046 0.035
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter c
ondi
tion.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C) Sa
lt co
ncen
tratio
ns n
eed
to b
e m
aint
aine
d at
pre
sent
day
leve
ls. ≤
680
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th pe
rcen
tiles
)
Dis
solv
ed
oxyg
en
≥ 6
milli
gram
s lit
re (5
th p
erce
ntile
)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
C
/D
C/D
cat
egor
y (5
7-62
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at ~
70%
for
the
ripar
ian
zone
.
C c
ateg
ory
(62-
77%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
324 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
34
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Upp
er z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s
Biot
a In
verte
brat
es
MIR
AI s
core
M
IRAI
sco
re s
houl
d eq
uate
to a
C
C
cat
egor
y (6
2-77
%)
D7 Gouritz-Olifants
III
J34C
D7-R25
Kammanassie River
gv36
C
/D Q
uant
ity
Low
flow
s H
igh
flow
s
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Kam
man
assi
e R
iver
an
ecol
ogic
al c
ondi
tion
that
is e
qual
to o
r bet
ter t
han
the
ecol
ogic
al c
ondi
tion
in s
umm
er
2014
(Cat
egor
y C
/D).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.218 0.218
0 1.091 0.218
0 0 0 0
1.091 0 0
Low 0.435 0.431 0.327 0.252 0.179 0.182 0.182 0.215 0.239 0.311 0.381 0.353
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter c
ondi
tion.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C) Sa
lt co
ncen
tratio
ns n
eed
to b
e m
aint
aine
d in
a D
cla
ss fo
r aq
uatic
eco
syst
ems.
≤
85 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed
oxyg
en
≥ 6
milli
gram
s lit
re (5
th p
erce
ntile
)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at ~
58%
for
the
ripar
ian
zone
.
C/D
cat
egor
y (5
7-62
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r abu
ndan
ce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s <
5%
Upp
er z
one
cove
r abu
ndan
ce
Exot
ic s
peci
es <
10%
, ter
rest
rial w
oody
sp
ecie
s <
20%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
D (4
6.9%
). D
cat
egor
y (4
2-57
%)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
C/D
(5
8 -62
%) C
ateg
ory
C/D
cat
egor
y (5
7-62
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 9
0, A
SPT
> 4.
5
Num
ber o
f fa
milie
s >
17 fa
milie
s, 2
or m
ore
baet
ids,
ab
unda
nce
A - C
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 325
35
Tabl
e 13
: Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s F1
3 Lo
wer
Gou
ritz
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
F13 Lower Gouritz
II
J40B
F13-R26
Gouritz River
gi4
C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Gou
ritz
Riv
er a
n ec
olog
ical
con
ditio
n th
at is
eq
ual t
o or
bet
ter t
han
the
ecol
ogic
al c
ondi
tion
in s
umm
er
2014
(Cat
egor
y C
).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 4.818 2.398 4.818 2.398 2.398 9.926 9.926 9.926
0 0 0 0
Low 2.752 2.474 2.267 1.804 1.627 2.223 2.134 2.041 2.021 2.137 2.213 2.213
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter c
ondi
tion.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
at p
rese
nt d
ay
leve
ls.
≤ 60
0 m
illiSi
emen
s/m
etre
(95th
perc
entil
e)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th pe
rcen
tiles
)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
B B
cat
egor
y (8
2-87
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at ~
57%
for
the
ripar
ian
zone
.
B/C
cat
egor
y (7
7-82
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r ab
unda
nce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 1
5%, t
erre
stria
l woo
dy
spec
ies
< 40
%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
D (5
0.1%
). D
cat
egor
y (4
2-57
%)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
C (6
0-79
%) C
ateg
ory
C c
ateg
ory
(62-
77%
) In
verte
brat
e di
vers
ity
SASS
sco
re >
90,
ASP
T >
5.0
Num
ber o
f fa
milie
s >
19 fa
milie
s, 7
with
SAS
S sc
ore
> 7,
ab
unda
nce
A - C
326 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
36
Tabl
e 14
: Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s F1
2 Du
iwen
hoks
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
F12 Duiwenhoks
III
H80D
F12-R27
Duiwenhoks River
giii8
D
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Dui
wen
hoks
Riv
er
an e
colo
gica
l con
ditio
n th
at is
eq
ual t
o or
bet
ter t
han
the
ecol
ogic
al c
ondi
tion
in s
umm
er
2014
.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.418
0 0 0 0
0.418 0 0
0.418 0
2.649 0
Low 1.775 1.676 1.151 0.648 0.489 0.781 0.861 0.981 1.014 1.207 1.426 1.522
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter c
ondi
tion.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
Tol
erab
le
cate
gory
for i
rriga
tion.
≤
270
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
6.5
≥ pH
≤ 8
.5 (5
th an
d 95
th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
D D
cat
egor
y (4
2-57
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at l
east
61%
fo
r the
ripa
rian
zone
.
C/D
cat
egor
y (5
7-62
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r abu
ndan
ce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s <
5%
Upp
er z
one
cove
r abu
ndan
ce
Exot
ic s
peci
es <
10%
, ter
rest
rial w
oody
sp
ecie
s <
20%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
D in
the
Dui
wen
hoks
Riv
er
D c
ateg
ory
(42-
57%
)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI (4
0 - 5
9%) s
hall
yiel
d a
D in
the
Dui
wen
hoks
Riv
er.
D c
ateg
ory
(42-
57%
) In
verte
brat
e di
vers
ity
SASS
sco
re >
60,
ASP
T sc
ore
> 5
Num
ber o
f fa
milie
s >
10 fa
milie
s, a
bund
ance
A -
C, p
rese
nce
of E
mlid
ae, S
imul
idae
, Anc
ylid
ae
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 327
37
Tabl
e 15
: Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s I1
8 He
sseq
ua
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
I18 Hessequa
III
H90C
I18-R28
Goukou River
giii7
C
/D Q
uant
ity
Low
flow
s H
igh
flow
s
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Dui
wen
hoks
R
iver
an
ecol
ogic
al c
ondi
tion
that
is e
qual
to o
r bet
ter t
han
the
ecol
ogic
al c
ondi
tion
in
sum
mer
201
4 (C
ateg
ory
C/D
).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 1.734 1.734
0 1.025 0.381
0 0 0 0 0 0
1.025
Low 0.794 0.764 0.171
0 0.139 0.688 0.688 0.653 0.598 0.567 0.691 0.654
Qua
lity
Nut
rient
s
Phos
phat
e (P
O4-P
) Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
an A
ccep
tabl
e ca
tego
ry fo
r eco
syst
em h
ealth
. ≤ 13
0 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
varia
bles
pH
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Toxi
ns
Atra
zine
To
xici
ty le
vels
mus
t not
pos
e a
thre
at to
aqu
atic
eco
syst
ems.
≤ 0.
079
milli
gram
s pe
r litr
e (9
5thpe
rcen
tile)
Endo
sulfa
n ≤
0.00
13 m
illigr
ams
per l
itre
(95th
perc
entil
e)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
D
D
cat
egor
y (4
2-57
%)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at l
east
71
% fo
r the
ripa
rian
zone
.
C c
ateg
ory
(62-
77%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 5
%, t
erre
stria
l woo
dy
spec
ies
< 5%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 1
0%, t
erre
stria
l woo
dy
spec
ies
< 10
%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
D (5
0.8%
). D
cat
egor
y (4
2-57
%)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
the
D
EC (4
0 - 5
9%) C
ateg
ory
D c
ateg
ory
(42-
57%
) In
verte
brat
e di
vers
ity
SASS
sco
re >
90,
ASP
T sc
ore
> 5.
8
Num
ber o
f fam
ilies
> 12
fam
ilies,
5 w
ith S
ASS
scor
e >
8,
abun
danc
e A
- C
328 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
38
Tabl
e 16
: Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s G
14 G
root
Bra
k
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G14 Groot Brak
III
K20A
G14-R29
Groot Brak River
gviii2
B/
C Q
uant
ity
Low
flow
s H
igh
flow
s
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hi
gh fl
ows
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Gro
ot B
rak
Riv
er
in a
n ec
olog
ical
con
ditio
n th
at
is e
qual
to o
r bet
ter t
han
Cat
egor
y B/
C.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 1.171 0.073 0.147
0 0.147 0.533
0 0 0 0 0 0
Low 0.112 0.299 0.287 0.199 0.141 0.134 0.257 0.068 0.087 0.112 0.134 0.151
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
n ol
igot
roph
ic c
ondi
tion.
≤ 0.
025
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
0.70
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
B c
lass
for
aqua
tic e
cosy
stem
hea
lth.
≤ 55
milli
Siem
ens/
met
re (9
5th pe
rcen
tile)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd d
isso
lved
ox
ygen
are
impo
rtant
for t
he
mai
nten
ance
of e
cosy
stem
he
alth
.
6.5
≥ pH
≤ 8
.5 (5
th a
nd 9
5th pe
rcen
tiles
)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
litre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion
in th
e do
wns
tream
W
olw
edan
s D
am.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
B B
cate
gory
(82-
87%
) Se
dim
ent p
artic
le
size
D
16 =
1m
m, D
50 =
32m
m, D
84 =
128
mm
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f Cat
egor
y B.
B ca
tego
ry (8
2-87
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%, t
erre
stria
l woo
dy
spec
ies
< 15
%
Upp
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
30%
, ter
rest
rial w
oody
sp
ecie
s >
40%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
B (8
2-87
%).
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
A (9
2-10
0%).
A ca
tego
ry (9
2-10
0%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
70, A
SPT
> 7.
9
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 329
39
Tabl
e 17
: Res
ourc
e Q
ualit
y O
bjec
tives
for R
IVER
S in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s G
15 C
oast
al
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G15 Coastal
II
K30B
G15-R30
Malgas River
gvii9
C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Mal
gas
in a
n ec
olog
ical
con
ditio
n th
at is
eq
ual t
o or
bet
ter t
han
Cat
egor
y C
.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 1.218 1.044 0.219 0.219 0.219 0.812
0 0 0 0 0 0
Low 0.296 0.081 0.042 0.042 0.077 0.085 0.123 0.211 0.204 0.169 0.211 0.204
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in B
cla
ss fo
r aq
uatic
eco
syst
ems.
≤
55 m
illiSi
emen
s/m
etre
(95th
per
cent
ile)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
5.0
≥ pH
≤ 7
.5 (5
th a
nd 9
5th pe
rcen
tiles
)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Toxi
ns
Amm
onia
To
xici
ty le
vels
mus
t not
pos
e a
thre
at to
aqu
atic
ec
osys
tem
s.
≤ 0.
073
milli
gram
s pe
r litr
e (9
5thpe
rcen
tile)
At
razi
ne
≤ 0.
079
milli
gram
s pe
r litr
e (9
5thpe
rcen
tile)
En
dosu
lfan
≤ 0.
0013
milli
gram
s pe
r litr
e (9
5thpe
rcen
tile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
B/
C
B/C
cat
egor
y (7
7-82
%)
Sedi
men
t par
ticle
si
ze
D16
= 2
mm
, D50
= 4
mm
, D84
= 3
2mm
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f Cat
egor
y D
D c
ateg
ory
(42-
57%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 5
%, t
erre
stria
l woo
dy
spec
ies
< 15
%
Upp
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
30%
, ter
rest
rial w
oody
sp
ecie
s >
50%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
C/D
(57-
62%
). C
/D c
ateg
ory
(57-
62%
)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
A
A ca
tego
ry (9
2-10
0%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
60, A
SPT
> 8
330 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
40
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G15 Coastal
II
K30C
G15-R31
Kaaimans River
gvii1
1 B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Kaai
man
s R
iver
in
an
ecol
ogic
al c
ondi
tion
that
is
equ
al to
or b
ette
r tha
n C
ateg
ory
B.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.249 1.052 0.775
0 0
1.828 0.249
0 0 0 0 0
Low 0.592 0.538 0.445 0.371 0.335 0.445 0.538 0.483 0.359 0.371 0.371 0.359
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
n ol
igot
roph
ic c
ondi
tion.
≤ 0
.025
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
0.70
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for a
quat
ic
ecos
yste
ms.
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
4.5
≥ pH
≤ 7
.5 (5
th a
nd 9
5th pe
rcen
tiles
)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for f
ull c
onta
ct
recr
eatio
n.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
B/
C
B/C
cat
egor
y (7
7-82
%)
Sedi
men
t par
ticle
si
ze
D16
= 2
mm
, D50
= 1
6 m
m, D
84 =
64
mm
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f Cat
egor
y A.
A ca
tego
ry (9
2-10
0%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s <
15%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 5
%, t
erre
stria
l woo
dy
spec
ies
< 5%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
B.
B c
ateg
ory
(82-
87%
)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
A
Cat
egor
y.
A ca
tego
ry (9
2-10
0%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
60, A
SPT
> 8
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 331
41
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G15 Coastal
II
K40A
G15-R32
Diep River
giii1
0 B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Upp
er D
iep
Riv
er in
an
ecol
ogic
al
cond
ition
that
is e
qual
to o
r be
tter t
han
Cat
egor
y B.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.412 0.107
0 0.021
0 0.412 0.107
0 0 0 0 0
Low 0.331 0.344 0.237
0.18 0.173 0.206 0.199 0.201 0.176 0.173 0.213 0.252
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
n ol
igot
roph
ic c
ondi
tion.
≤ 0
.025
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
0.7
0 m
illigr
ams
per l
itre
(50th
per
cent
ile)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for a
quat
ic
ecos
yste
ms.
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
5 ≥
pH ≤
7 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
B.
B ca
tego
ry (8
2-87
%)
Sedi
men
t par
ticle
si
ze
D16
= 1
0mm
, D50
= 1
00 m
m, D
84 =
300
m
m
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f Cat
egor
y A/
B.
A/B
cate
gory
(87-
92%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 2
0%, t
erre
stria
l woo
dy
spec
ies
< 5%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 5
%, t
erre
stria
l woo
dy
spec
ies
< 5%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
B.
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
B
Cat
egor
y (8
0 -90
%).
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
90, A
SPT
> 7
332 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
42
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G15 Coastal
II
K40C
G15-R33
Karatara River
gvii1
3 B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Kara
tara
Riv
er in
an
eco
logi
cal c
ondi
tion
that
is
equa
l to
or b
ette
r tha
n C
ateg
ory
A/B.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.471 0.283
0 0 0
0.283 0.029
0 0 0 0 0
Low 0.188 0.192 0.169 0.149 0.144 0.169
0.16 0.153 0.129
0.12 0.149
0.17
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
n ol
igot
roph
ic c
ondi
tion.
≤ 0
.025
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
0.7
0 m
illigr
ams
per l
itre
(50th
per
cent
ile)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for a
quat
ic
ecos
yste
ms.
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
4.0
≥ pH
≤ 7
.0 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for f
ull c
onta
ct
recr
eatio
n.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
A.
A ca
tego
ry (9
2-10
0%)
Sedi
men
t par
ticle
si
ze
D16
= 3
0mm
, D50
= 8
0 m
m, D
84 =
200
m
m
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f Cat
egor
y A/
B.
A/B
cate
gory
(87-
92%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 1
0%, t
erre
stria
l woo
dy
spec
ies
< 5%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 1
0%, t
erre
stria
l woo
dy
spec
ies
< 5%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
B.
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
A.
A ca
tego
ry (9
2-10
0%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
20, A
SPT
> 7
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 333
43
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G15 Coastal
II
K40E
G15-R34
Goukamma
gviii9
B/
C Q
uant
ity
Low
flow
s H
igh
flow
s
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Gou
kam
ma
Riv
er in
an
ecol
ogic
al
cond
ition
that
is e
qual
to o
r be
tter t
han
Cat
egor
y B/
C.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.445 0.821 0.821 0.445 0.445 0.445 0.445
0 0 0 0 0
Low 0.645 1.124 0.825 0.642 0.552 0.764 0.947 0.401 0.387 0.431 0.554 0.536
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
m
esot
roph
ic o
r bet
ter
cond
ition
.
≤ 0.
075
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
1.75
milli
gram
s/lit
re (5
0th p
erce
ntile
)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r aq
uatic
eco
syst
ems.
≤ 55
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
4 ≥
pH ≤
7 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
6 m
illigr
ams
litre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
ca
tego
ry fo
r ful
l con
tact
re
crea
tion.
≤ 16
5 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
B.
B ca
tego
ry (8
2-87
%)
Sedi
men
t par
ticle
si
ze
D16
= 2
mm
, D50
= 2
4 m
m, D
84 =
128
mm
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f Cat
egor
y B.
B ca
tego
ry (8
2-87
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s <
15%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 5
%, t
erre
stria
l woo
dy
spec
ies
< 5%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
C.
C c
ateg
ory
(62-
77%
)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
A.
A ca
tego
ry (9
2-10
0%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
00, A
SPT
> 7.
4
334 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
44
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G15 Coastal
II
K50A
G15-R35
Knysna River
gvii1
4 B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Knys
na R
iver
in
an e
colo
gica
l con
ditio
n th
at is
eq
ual t
o or
bet
ter t
han
Cat
egor
y B.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.478 0.837
0 0
0.239 0.239 0.478
0 0 0 0 0
Low 0.686 0.664 0.546 0.437 0.411 0.441 0.441 0.476 0.447 0.474 0.579 0.644
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
n ol
igot
roph
ic c
ondi
tion.
≤ 0
.025
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
0.7
0 m
illigr
ams
per l
itre
(50th
per
cent
ile)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for a
quat
ic
ecos
yste
m h
ealth
.
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
4.5
≥ pH
≤ 7
.0 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for f
ull c
onta
ct
recr
eatio
n.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
A/
B.
A/B
cate
gory
(87-
92%
) Se
dim
ent p
artic
le
size
D
16 =
30m
m, D
50 =
120
mm
, D84
= 3
00
mm
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f Cat
egor
y A/
B.
A/B
cate
gory
(87-
92%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 2
0%, t
erre
stria
l woo
dy
spec
ies
< 5%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 4
0%, t
erre
stria
l woo
dy
spec
ies
< 5%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
B.
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
B
Cat
egor
y.
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
50, A
SPT
> 6.
7
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 335
45
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G15 Coastal
II
K50B
G15-R36
Gouna River
gviii1
1 A/
B
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Gou
na R
iver
in
an e
colo
gica
l con
ditio
n th
at is
eq
ual t
o or
bet
ter t
han
Cat
egor
y A/
B.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.342 1.197
0 0 0
0.684 0.342
0 0 0 0
0.067
Low 1.44
1.328 1.019 0.778 0.692
0.76 0.781 0.898 0.875 0.954 1.202 1.377
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
n ol
igot
roph
ic c
ondi
tion.
≤ 0
.025
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
0.7
0 m
illigr
ams
per l
itre
(50th
per
cent
ile)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for a
quat
ic
ecos
yste
m h
ealth
.
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
4.0
≥ pH
≤ 7
.0 (5
th a
nd 9
5th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for f
ull c
onta
ct
recr
eatio
n.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
A/
B.
A/B
cate
gory
(87-
92%
) Se
dim
ent p
artic
le
size
D
16 =
10m
m, D
50 =
50
mm
, D84
= 2
00
mm
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f Cat
egor
y A/
B.
A/B
cate
gory
(87-
92%
) M
argi
nal z
one
cove
r abu
ndan
ce
No
exot
ic s
peci
es, n
o te
rrest
rial w
oody
sp
ecie
s Lo
wer
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 1
0%, t
erre
stria
l woo
dy
spec
ies
< 5%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 1
0%, t
erre
stria
l woo
dy
spec
ies
< 5%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
B.
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ates
M
IRAI
sco
re
MIR
AI s
core
to b
e w
ithin
B
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
20, A
SPT
> 7.
5
336 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
46
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G15 Coastal
II
K60C
G15-R37
Keurbooms River
giv6
C
Qua
ntity
Lo
w fl
ows
Hig
h flo
ws
Mai
nten
ance
low
flo
ws
Mai
nten
ance
hig
h flo
ws
Flow
s sh
all b
e su
ffici
ent t
o m
aint
ain
the
Keur
boom
s R
iver
an
ecol
ogic
al c
ondi
tion
that
is e
qual
to o
r bet
ter t
han
the
ecol
ogic
al c
ondi
tion
in
sum
mer
201
4 (C
ateg
ory
B).
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Maintenance flows (million cubic metres)
High 0.758
0 0.758
0 0 0 0
0.758 0 0
0.758 3.389
Low 1.697 1.448 1.157 0.788 0.508 0.627 0.669 0.833 0.875 1.123 1.395 1.448
Qua
lity
Nut
rient
s
Phos
phat
e
(PO
4-P)
Nut
rient
leve
ls m
ust b
e m
aint
aine
d in
the
river
at a
n ol
igot
roph
ic c
ondi
tion.
≤ 0
.025
milli
gram
s pe
r litr
e (5
0th p
erce
ntile
)
Tota
l ino
rgan
ic
nitro
gen
(TIN
) ≤
0.7
0 m
illigr
ams
per l
itre
(50th
per
cent
ile)
Salts
El
ectri
cal
cond
uctiv
ity (E
C)
Salt
conc
entra
tions
nee
d to
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for a
quat
ic
ecos
yste
m h
ealth
.
≤ 30
milli
Siem
ens/
met
re (9
5th p
erce
ntile
)
Syst
em
varia
bles
pH ra
nge
pH, t
empe
ratu
re, a
nd
diss
olve
d ox
ygen
are
im
porta
nt fo
r the
mai
nten
ance
of
eco
syst
em h
ealth
.
5.5
≥ pH
≤ 8
.0 (5
th an
d 95
th p
erce
ntile
s)
Dis
solv
ed o
xyge
n ≥
8 m
illigr
ams
per l
itre
(5th
per
cent
ile)
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Id
eal
cate
gory
for f
ull c
onta
ct
recr
eatio
n.
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Geo
mor
phol
ogy
GAI
sco
re
GAI
sco
re s
houl
d eq
uate
to a
B.
B
cate
gory
(82-
87%
)
Rip
aria
n ve
geta
tion
VEG
RAI
sco
re
VEG
RAI
leve
l 4 o
f at ~
58%
fo
r the
ripa
rian
zone
.
B/C
cat
egor
y (7
7-82
%)
Mar
gina
l zon
e co
ver a
bund
ance
N
o ex
otic
spe
cies
, no
terre
stria
l woo
dy
spec
ies
Low
er z
one
cove
r ab
unda
nce
Exot
ic s
peci
es <
5%
, ter
rest
rial w
oody
sp
ecie
s <
15%
U
pper
zon
e co
ver
abun
danc
e Ex
otic
spe
cies
< 3
0%, t
erre
stria
l woo
dy
spec
ies
< 20
%
Biot
a
Fish
FR
AI s
core
FR
AI s
hall
yiel
d a
B B
cate
gory
(82-
87%
)
Inve
rtebr
ates
MIR
AI s
core
MIR
AI s
core
to b
e w
ithin
B
B ca
tego
ry (8
2-87
%)
Inve
rtebr
ate
dive
rsity
SA
SS s
core
> 1
80, A
SPT
> 6.
5
Num
ber o
f fa
milie
s >
15 fa
milie
s, 2
with
SAS
S sc
ores
> 1
2,
abun
danc
e A
- C
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 337
47
Tabl
e 18
: Res
ourc
e Q
ualit
y O
bjec
tives
for E
STUA
RIES
in p
riorit
y Re
sour
ce U
nits
in th
e In
tegr
ated
Uni
t of A
naly
sis
B5 O
verb
erg
Wes
t
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
B5 Overberg West
II
G40D
B5-E01
Palmiet Estuary
pxi1
C
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n a
flow
regi
me
to
crea
te th
e re
quire
d ha
bita
t fo
r bird
s, fi
sh, m
acro
phyt
es,
mic
roal
gae
and
wat
er
qual
ity.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
76.6 49.2 39.1 48.2 43.6 43.0 41.1 46.4 57.3 74.4 86.6 90.5 70.1
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Riv
er in
flow
: Ave
rage
DIN
con
cent
ratio
n >1
00 µ
g/l
(dry
sea
son)
or >
500
µg/l
(wet
sea
son)
Es
tuar
y: A
vera
ge D
IN c
once
ntra
tions
in fr
eshw
ater
se
ctio
n >1
00 µ
g/l (
dry
seas
on) (
mar
ine
wat
ers
may
ha
ve h
ighe
r con
cent
ratio
ns li
nked
to u
pwel
ling)
an
d >5
00 µ
g/l (
wet
sea
son)
DIP
Riv
er in
flow
: Ave
rage
DIP
con
cent
ratio
n >1
0 µg
/l (d
ry s
easo
n) a
nd >
50 µ
g/l (
wet
sea
son)
Es
tuar
y: A
vera
ge D
IP c
once
ntra
tions
>10
µg/
l (dr
y se
ason
) (m
arin
e w
ater
s m
ay h
ave
high
er
conc
entra
tions
link
ed to
upw
ellin
g) a
nd >
50 µ
g/l
(wet
sea
son)
.
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Salin
ity m
ust n
ot d
rop
belo
w 1
0 fo
r lon
ger t
han
thre
e m
onth
s in
a y
ear
Syst
em
varia
bles
Tem
pera
ture
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
Riv
er in
flow
: Sum
mer
tem
pera
ture
<20
°C
pH
<8
Dis
solv
ed
oxyg
en
>4 m
g/
Secc
hi d
epth
>2
m
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity w
ith
mar
ine
envi
ronm
ent a
t a
leve
l tha
t ens
ures
wat
er
qual
ity a
nd h
abita
t rem
ains
su
itabl
e fo
r bio
ta ty
pica
lly
foun
d in
the
estu
ary
Estu
ary
mou
th p
erm
anen
tly o
pen
Tida
l var
iatio
n Av
erag
e tid
al a
mpl
itude
nea
r the
mou
th d
urin
g lo
w
flow
s (s
umm
er) m
ust n
ot c
hang
e by
>10
% fr
om
esta
blis
hed
base
line.
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
338 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
48
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w p
hyto
plan
kton
bio
mas
s; m
aint
ain
mic
roal
gal g
roup
div
ersi
ty a
s m
easu
red
for t
he
base
line
surv
ey; p
hyto
plan
kton
bio
mas
s sh
ould
not
in
crea
se b
y m
ore
than
20%
abo
ve b
asel
ine
conc
entra
tions
; phy
topl
ankt
on g
roup
div
ersi
ty
shou
ld n
ot c
hang
e by
mor
e 20
% fr
om b
asel
ine
cond
ition
s
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Area
cov
ered
by
diffe
rent
pla
nt c
omm
unity
type
s sh
ould
not
cha
nge
by m
ore
than
20%
from
ba
selin
e op
en a
nd c
lose
d m
outh
con
ditio
ns, n
o in
vasi
ve s
peci
es s
houl
d be
pre
sent
, pre
vent
ex
cess
ive
filam
ento
us m
acro
alga
l gro
wth
, are
a co
vere
d sh
ould
be
less
than
50
% o
f the
ope
n w
ater
sur
face
are
a, m
acro
alga
e co
ver s
houl
d no
t ex
ceed
50%
in 1
m2 q
uadr
ats
or o
ccup
y m
ore
than
50
% o
f the
ope
n w
ater
sur
face
are
a in
the
east
ern
chan
nel a
nd a
bove
san
d ba
nk in
the
low
er re
ache
s of
the
estu
ary,
mac
roal
gal w
et b
iom
ass
shou
ld
rem
ain
belo
w 5
00 g
m-2
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Den
sity
of s
andp
raw
n bu
rrow
ope
ning
s sh
ould
ex
ceed
75
per m
2 in th
e hi
ghes
t den
sity
are
as in
th
e lo
wer
est
uary
; am
phip
ods
shou
ld n
umer
ical
ly
dom
inat
e th
e be
nthi
c fa
una
( Gra
ndid
iere
lla s
p.an
d C
orop
hium
tria
enon
yx) l
ivin
g on
the
sedi
men
t su
rface
in th
e m
iddl
e an
d up
per e
stua
rine
reac
hes
resp
ectiv
ely;
in th
e zo
opla
nkto
n, th
e de
nsity
of
Pseu
dodi
apto
mus
hes
sei s
houl
d ra
nge
betw
een
100
and
5000
m3 in
the
sum
mer
in th
e m
id-e
stua
ry
regi
on
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Ret
ain
the
follo
win
g fis
h as
sem
blag
es in
the
estu
ary
(bas
ed o
n ab
unda
nce)
: est
uarin
e sp
ecie
s (1
0-20
%);
estu
arin
e as
soci
ated
mar
ine
spec
ies
(80-
90%
); an
d in
dige
nous
fres
hwat
er s
peci
es
(~1%
); al
l num
eric
ally
dom
inan
t spe
cies
sho
uld
be
repr
esen
ted
by 0
+ ju
veni
les.
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Ret
ain
regu
lar r
epre
sent
atio
n of
wad
ers,
gul
ls, a
nd
tern
s, a
nd o
vera
ll w
ater
bird
spe
cies
rich
ness
of
seve
n or
mor
e sp
ecie
s; e
stua
ry s
houl
d no
t be
regu
larly
use
d by
wat
erfo
wl s
peci
es s
uch
as
Red
knob
bed
Coo
t; w
ader
s or
tern
s sh
ould
not
be
abse
nt fr
om th
e es
tuar
y fo
r >5
cons
ecut
ive
coun
ts
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 339
49
Tabl
e 19
: Res
ourc
e Q
ualit
y O
bjec
tives
for E
STUA
RIES
in p
riorit
y Re
sour
ce U
nits
in th
e In
tegr
ated
Uni
t of A
naly
sis
H16
Ove
rber
g W
est C
oast
al
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
H16 Overberg West Coastal
II
G40B
H16-E02
Buffels Estuary
bxi1
B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n at
leas
t pre
sent
-da
y ba
se fl
ows
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
84.4 69.5 28.7 11.2
8.9 13.4 35.3 64.3 87.8 91.2 91.7 89.8 81.9
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
<100
µg/ℓ
DIP
<1
0 µg
/ℓ
Syst
em
varia
bles
D
isso
lved
ox
ygen
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>6 m
g/l
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
<20
µg l-
1
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Area
occ
upie
d by
diff
eren
t mac
roph
yte
grou
ps
shou
ld n
o ch
ange
by
>20
% c
hang
e in
the
area
co
vere
d by
hab
itats
, sub
mer
ged
mac
roph
ytes
suc
h as
pon
dwee
d (P
otam
oget
on p
ectin
atus
) sho
uld
be
pres
ent d
urin
g lo
w fl
ow c
ondi
tions
340 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
50
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Estu
ary
shou
ld h
ave
viab
le p
opul
atio
ns o
f C
allia
nass
a kr
auss
i in
sand
y zo
nes
and
Upo
gebi
a af
rican
a in
mud
dy z
ones
.
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd
1 in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V).
Estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, bu
t the
pro
porti
on o
f est
uary
dep
ende
nt m
arin
e sp
ecie
s (b
ased
on
abun
danc
e) s
houl
d no
t fal
l be
low
2%
.
H16 Overberg West Coastal
II
G40B
H16-E03
Rooiels Estuary
bxi2
B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n at
leas
t pre
sent
-da
y ba
se fl
ows
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
99.0 98.9 98.4 98.0 98.3 98.0 98.1 98.3 98.5 98.6 98.6 98.8 98.6
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
<100
µg/ℓ
DIP
<1
0 µg
/ℓ
Syst
em
varia
bles
D
isso
lved
ox
ygen
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>6 m
g/l
Path
ogen
s Es
cher
ichi
a co
li
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤ 13
0 co
unts
/100
ml (
95th
per
cent
ile)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 341
51
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
<20
µg l-1
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Area
occ
upie
d by
diff
eren
t mac
roph
yte
grou
ps
shou
ld n
o ch
ange
by
>20
% c
hang
e in
the
area
co
vere
d by
hab
itats
, sub
mer
ged
mac
roph
ytes
suc
h as
pon
dwee
d (P
otam
oget
on p
ectin
atus
) sho
uld
be
pres
ent d
urin
g lo
w fl
ow c
ondi
tions
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Estu
ary
shou
ld h
ave
viab
le p
opul
atio
ns o
f C
allia
nass
a kr
auss
i in
sand
y zo
nes
and
Upo
gebi
a af
rican
a in
mud
dy z
ones
.
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd
1 in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V).
Estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, bu
t the
pro
porti
on o
f est
uary
dep
ende
nt m
arin
e sp
ecie
s (b
ased
on
abun
danc
e) s
houl
d no
t fal
l be
low
2%
.
H16 Overberg West Coastal
II
G40G
H16-E04
Bot Estuary
nxi6
C
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n a
flow
regi
me
to
crea
te th
e re
quire
d ha
bita
t fo
r bird
s, fi
sh, m
acro
phyt
es,
mic
roal
gae
and
wat
er
qual
ity
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
80.2 75.7 63.9 58.2 60.3 63.7 75.5 80.9 83.8 85.8 87.7 85.0 81.8
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Riv
er in
flow
(low
flow
s): D
IN <
100
µg/l;
Riv
er in
flow
hi
gh fl
ows)
: DIN
<30
0 µg
/l; E
stua
ry (l
ow fl
ows)
: D
IN <
100
µg/l
(exc
ept d
urin
g up
wel
ling
even
ts);
Estu
ary
(hig
h flo
ws)
: DIN
<30
0 µg
/l in
Zon
es A
& B
(u
pper
reac
hes)
and
<10
0 µg
/l in
Zon
es C
& D
(lo
wer
reac
hes)
(exc
ept d
urin
g up
wel
ling
even
ts)
DIP
Riv
er in
flow
(low
flow
s): D
RP
<50
µg/l;
Riv
er in
flow
hi
gh fl
ows)
: DR
P <8
0 µg
/l; E
stua
ry (l
ow fl
ows)
: D
RP
<50
µg/l
(exc
ept d
urin
g up
wel
ling
even
ts);
Estu
ary
(hig
h flo
ws)
: DR
P <8
0 µg
/l in
Zon
es A
& B
(u
pper
reac
hes)
and
<50
µg/
l in
Zone
s C
& D
(lo
wer
reac
hes)
(exc
ept d
urin
g up
wel
ling
even
ts)
342 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
52
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Sum
mer
: 8<S
alin
ity<4
0
Syst
em
varia
bles
pH
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
6 <
pH <
8.5
D
isso
lved
ox
ygen
>4
mg/
l
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
seli n
e
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w p
hyto
plan
kton
bio
mas
s (<
6 u
g l-1
); ph
ytop
lank
ton
biom
ass
shou
ld n
ot ri
se a
bove
10
ug l-1
for g
reat
er th
an 6
mon
ths;
mai
ntai
n m
icro
alga
l gro
up d
iver
sity
as
mea
sure
d fo
r the
ba
selin
e su
rvey
(an
incr
ease
in C
yano
phyt
es (b
lue
gree
ns) w
ould
be
a ca
use
for c
once
rn);
phyt
opla
nkto
n gr
oup
dive
rsity
sho
uld
not d
ecre
ase
belo
w 2
0% o
f tha
t fou
nd fo
r bas
elin
e co
nditi
ons;
m
aint
ain
pres
ent b
enth
ic m
icro
alga
l bio
mas
s (<
4
ug g
-1);
bent
hic
mic
roal
gal
biom
ass
shou
ld n
ot ri
se
abov
e 10
ug
g-1 fo
r gre
ater
than
6 m
onth
s
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n th
e pr
esen
t are
a (2
011)
cov
ered
by
the
mac
roph
yte
habi
tats
: sub
mer
ged
mac
roph
ytes
(4
76 h
a); r
eeds
and
sed
ges
(60
ha);
salt
mar
sh (6
9 ha
); an
d m
acro
alga
e (2
38 h
a); p
reve
nt e
xces
sive
fil
amen
tous
mac
roal
gal g
row
th; t
he p
rese
nt ra
tio o
f m
acro
alga
e to
sub
mer
ged
mac
roph
ytes
mus
t be
mai
ntai
ned
(i.e.
50%
).
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 343
53
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Zoop
lank
ton:
Den
sity
of P
seud
odia
ptom
us h
esse
i sh
ould
rang
e be
twee
n 10
0 an
d 50
00 m
3 in th
e su
mm
er in
the
mid
-est
uary
regi
on; B
enth
ic
mac
rofa
una:
den
sity
of s
andp
raw
n C
allia
nass
a kr
auss
i bur
row
ope
ning
s sh
ould
exc
eed
75 p
er m
2 in
the
high
est d
ensi
ty a
reas
in th
e lo
wer
est
uary
, bu
rrow
den
sity
in th
e lo
wer
est
uary
sho
uld
not d
rop
belo
w 5
0 co
unts
per
m2
in th
e hi
ghes
t den
sity
ar
eas,
all
size
cla
sses
of s
and
praw
n sh
ould
be
pres
ent i
n th
e po
pula
tion
Fish
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pre
vent
co
loni
satio
n/in
crea
se o
f alie
n sp
ecie
s
Fish
com
mun
ity
com
posi
tion,
abu
ndan
ce
and
richn
ess
Juve
nile
est
uary
dep
enda
nt m
arin
e fis
h sh
ould
not
be
abs
ent f
rom
the
estu
ary
for m
ore
than
two
year
s in
a ro
w; %
con
tribu
tion
by ju
veni
le e
stua
ry
depe
ndan
t mar
ine
fish
to a
ssem
blag
e by
num
ber
shou
ld n
ot d
rop
to <
60%
of r
esid
ents
; Alie
n sp
ecie
s ab
unda
nce
shou
ld re
mai
n be
low
5 %
of
biom
ass
in m
ain
body
of e
stua
ry; %
con
tribu
tion
of
adul
t & s
ub-a
dult
estu
ary-
depe
nden
t fis
h to
as
sem
blag
e by
num
ber s
houl
d no
t dro
p be
low
15
%
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Num
ber o
f non
-pas
serin
e w
ater
bird
spe
cies
re
cord
ed in
cou
nts
shou
ld n
ot d
ecre
ase
by m
ore
than
10%
ove
r a fi
ve-y
ear p
erio
d; o
vera
ll nu
mbe
rs
of w
ader
s, w
adin
g bi
rds
or g
ulls
& te
rns,
or
num
bers
of a
ny o
f the
spe
cies
in th
ese
grou
ps
shou
ld n
ot d
ecre
ase
rela
tive
to th
e ba
selin
e av
erag
e by
mor
e th
an 1
0% o
ver a
five
-yea
r per
iod,
af
ter c
orre
ctin
g fo
r reg
iona
l/glo
bal p
opul
atio
n ch
ange
s; to
tal s
umm
er n
umbe
rs o
f wat
erfo
wl
shou
ld n
ot e
xcee
d 15
000
for m
ore
than
4 y
ears
.
H16 Overberg West Coastal
II
G40H
H16-E05
Onrus Estuary
nxi8
D
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n a
flow
regi
me
to
crea
te th
e re
quire
d ha
bita
t fo
r bird
s, fi
sh, m
acro
phyt
es,
mic
roal
gae
and
wat
er
qual
ity
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
55.6 54.2 53.8 52.9 51.2 50.2 49.7 49.0 50.0 49.8 51.7 54.8 51.8
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<30
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
25
µg/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
10 <
Sal
inity
<40
344 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
54
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
En
tire
estu
ary
and
river
inflo
w: D
O >
5 m
g/ℓ
Turb
idity
Tu
rbid
ity <
5 N
TU
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
seli n
e
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Con
trol n
utrie
nt in
put f
rom
sew
age
spills
to p
reve
nt
mic
roal
gal b
loom
s (>
20
µg l-1
) and
the
occu
rrenc
e of
har
mfu
l alg
al b
loom
spe
cies
; mai
ntai
n th
e di
strib
utio
n of
diff
eren
t phy
topl
ankt
on g
roup
s (d
iver
se c
omm
unity
com
posi
tion)
and
pre
vent
do
min
ance
of C
yano
phyt
es (b
lue-
gree
n al
gae)
that
oc
cur u
nder
nut
rient
rich
, fre
shw
ater
con
ditio
ns
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n th
e pr
esen
t are
a (2
014)
cov
ered
by
the
mac
roph
yte
habi
tats
: op
en s
urfa
ce w
ater
are
a:
2.59
, san
d an
d m
udfla
ts: 1
.86,
reed
s an
d se
dges
: 6.
57, p
reve
nt fu
rther
spr
ead
of re
eds
by re
duci
ng
nutri
ent i
nput
and
occ
urre
nce
of a
quat
ic in
vasi
ve
such
as
wat
er fe
rn A
zolla
.; pr
even
t fur
ther
di
stur
banc
e an
d de
velo
pmen
t in
the
ripar
ian
zone
; re
mov
e al
ien
plan
ts fr
om th
e rip
aria
n zo
ne a
nd
cont
rol t
he s
prea
d of
gar
den
inva
sive
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 345
55
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
The
estu
ary
shou
ld h
ave
viab
le p
opul
atio
ns o
f C
allia
nass
a kr
auss
i in
sand
y zo
nes
and
Upo
gebi
a af
rican
a in
mud
dy z
ones
. Br
eedi
ng in
bot
h sp
ecie
s ce
ases
at s
alin
ities
low
er th
an 1
7 pp
t dur
ing
prol
onge
d m
outh
pha
se.
In U
. afri
cana
and
exp
ort
of la
rvae
into
mar
ine
and
post
larv
ae b
ack
to
estu
ary
ceas
es; p
rolo
nged
mou
th c
losu
re s
houl
d be
avo
ided
as
this
will
resu
lt in
a lo
ss o
f mar
ine
spec
ies
(e.g
. Pse
udod
iapt
omus
sp.
) fro
m th
e zo
opla
nkto
n co
mm
unity
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
2 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y II)
, 1
indi
geno
us c
atad
rom
ous
spec
ies
(Cat
egor
y V)
and
tw
o fre
shw
ater
indi
geno
us s
peci
es (C
ateg
ory
IV).
Estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
(>
50%
), bu
t est
uary
dep
ende
nt m
arin
e sp
ecie
s,
indi
geno
us c
atad
rom
ous
and
fresh
wat
er s
peci
es
shou
ld b
e pr
esen
t Ta
ble
20: R
esou
rce
Qua
lity
Obj
ectiv
es fo
r EST
UARI
ES in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s H1
7 O
verb
erg
East
Fyn
bos
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
H17 Overberg East Fynbos
II
G40L
H17-E06
Klein Estuary
nxi7
C
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Floo
d an
d br
each
ing
regi
mes
to m
aint
ain
the
sedi
men
t dis
tribu
tion
patte
rns
and
aqua
tic
habi
tat (
inst
ream
phy
sica
l ha
bita
t) so
as
not t
o ex
ceed
TPC
s fo
r bio
ta
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
84.2 83.1 85.5 73.7 69.4 78.8 78.0 83.9 82.3 86.9 89.7 90.3 85.6
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<30
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
25 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
5 <
Salin
ity <
40
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
Entir
e es
tuar
y an
d riv
er in
flow
: DO
>5m
g/ℓ,
turb
idity
<
5 N
TU
Turb
idity
Tu
rbid
ity <
5 N
TU
Path
ogen
s En
tero
cocc
i C
once
ntra
tions
of
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
346 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
56
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Esch
eric
hia
coli
wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
seli n
e
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt
to m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Phyt
opla
nkto
n bi
omas
s, m
easu
red
as w
ater
col
umn
chlo
roph
yll -a
sho
uld
not e
xcee
d 10
µg
l-1; m
aint
ain
high
sub
tidal
ben
thic
mic
roal
gae
biom
ass
durin
g th
e cl
osed
mou
th p
hase
and
hig
h in
terti
dal b
enth
ic
mic
roal
gae
biom
ass
durin
g th
e op
en p
hase
; ph
ytop
lank
ton
biom
ass
shou
ld n
ot e
xcee
d 10
µg
l-1;
bent
hic
mic
roal
gae
biom
ass
shou
ld n
ot d
evia
te m
ore
than
20
% c
ompa
red
with
Pre
sent
Sta
te
conc
entra
tions
; no
brac
kish
epi
pelic
dia
tom
s sh
ould
be
foun
d du
ring
the
clos
ed p
hase
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, di
strib
utio
n an
d ric
hnes
s of
m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n th
e pr
esen
t are
a (2
014)
cov
ered
by
the
mac
roph
yte
habi
tats
: ope
n su
rface
wat
er a
rea:
74
1.6
ha; s
and
and
mud
ban
ks: 7
9 ha
; sub
mer
ged
mac
roph
ytes
: 92
ha; s
alt m
arsh
: 170
ha;
reed
s an
d se
dges
: 127
ha;
floo
dpla
in: 2
80 h
a (m
ostly
inta
ct)
and
110
ha (d
istu
rbed
); m
aint
ain
the
dist
ribut
ion
of
plan
t com
mun
ity ty
pes
i.e. s
ubm
erge
d m
acro
phyt
e,
Rup
pia
cirrh
osa
beds
dur
ing
clos
ed m
outh
bra
ckis
h co
nditi
ons,
sal
t mar
sh, S
alic
orni
a m
eyer
iana
mar
sh
durin
g op
en m
outh
con
ditio
ns, P
hrag
mite
s au
stra
lis
stan
ds in
the
mid
dle
/ upp
er re
ache
s an
d sa
lt m
arsh
gr
asse
s in
dica
tive
of b
rack
ish
cond
ition
s
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 347
57
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Bent
hic
inve
rtebr
ates
: The
est
uary
sho
uld
have
vi
able
pop
ulat
ions
of C
allia
nass
a kr
auss
i in
sand
y zo
nes
and
U. A
frica
na in
mud
dy z
ones
. Br
eedi
ng in
bo
th s
peci
es c
ease
s at
sal
initi
es lo
wer
than
17
ppt
durin
g pr
olon
ged
mou
th p
hase
. In
U. a
frica
na a
nd
expo
rt of
larv
ae in
to m
arin
e an
d po
stla
rvae
bac
k to
es
tuar
y ce
ases
; abu
ndan
ce o
f C. k
raus
si a
nd U
. af
rican
a sh
ould
not
dro
p be
low
50%
of r
ecor
ded
tota
l abu
ndan
ces
in e
ach
seas
on; r
ecru
its s
houl
d be
re
cord
ed in
pop
ulat
ion
(Iden
tify
zone
s w
here
thes
e ar
e ab
unda
nt fr
om th
e ba
selin
e st
udy
and
thes
e w
ould
be
whe
re th
e ab
ove
wou
ld b
e as
sess
ed);
Zoop
lank
ton:
Pro
long
ed c
lose
mou
th w
ould
resu
lt in
a
loss
of m
arin
e sp
ecie
s (e
.g. P
seud
odia
ptom
us s
p.)
from
the
zoop
lank
ton
com
mun
ity; a
bund
ance
of
indi
cato
r mar
ine
spec
ies
(e.g
. Pse
udod
iapt
omus
sp.
) sh
ould
not
cha
nge
by m
ore
than
50%
of c
urre
nt
leve
ls.
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Ret
ain
the
follo
win
g fis
h as
sem
blag
es in
the
estu
ary
(bas
ed o
n ab
unda
nce)
: est
uarin
e sp
ecie
s (2
0 -30
%),
estu
arin
e as
soci
ated
mar
ine
spec
ies
(60-
70%
) and
in
dige
nous
fres
hwat
er s
peci
es (<
1%).
All
num
eric
ally
dom
inan
t spe
cies
are
repr
esen
ted
by 0
+ ju
veni
les.
abu
ndan
ce o
f est
uary
ass
ocia
ted
mar
ine
spec
ies
shou
ld n
ot d
rop
belo
w 5
0% o
f tot
al
abun
danc
e; a
bund
ance
of e
stua
rine
spec
ies
shou
ld
not i
ncre
ase
abov
e 50
% o
f tot
al a
bund
ance
.; al
ien
fresh
wat
er s
peci
es s
houl
d no
t be
pres
ent i
n th
e es
tuar
y; 0
+ ju
veni
les
of a
ll of
the
dom
inan
t fis
h sp
ecie
s sh
ould
be
pres
ent
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
The
estu
ary
shou
ld c
onta
in a
rich
avi
faun
al
com
mun
ity th
at in
clud
es re
pres
enta
tives
of a
ll th
e or
igin
al g
roup
s, s
igni
fican
t num
bers
of m
igra
tory
w
ader
s an
d te
rns,
as
wel
l as
a he
alth
y br
eedi
n g
popu
latio
n of
resi
dent
wad
ers;
the
estu
ary
shou
ld
supp
ort t
hous
ands
of b
irds
in s
umm
er a
nd h
undr
eds
in w
inte
r; nu
mbe
rs o
f wat
erfo
wl s
houl
d no
t dro
p be
low
600
, wad
ers
belo
w 1
00 in
sum
mer
, and
tern
s be
low
250
; ove
rall
num
bers
of b
ird s
peci
es s
houl
d no
t dro
p be
low
100
0 fo
r 3 c
onse
cutiv
e co
unts
348 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
58
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
H17 Overberg East Fynbos
II
G40M
H17-E07
Uilkraal Estuary
nxi5
C
/D Q
uant
ity
Flow
M
MR
/MAR
(%
Nat
)
Mai
ntai
n a
flow
regi
me
to
crea
te th
e re
quire
d ha
bita
t fo
r bird
s, fi
sh,
mac
roph
ytes
, mic
roal
gae
and
wat
er q
ualit
y
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8 58.8
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<30
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
25 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
10 <
Sal
inity
<40
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
En
tire
estu
ary
and
river
inflo
w: D
O >
6 m
g/ℓ
Turb
idity
Tu
rbid
ity <
5 N
TU
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
seli n
e
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt
to m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a M
icro
alga
e
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Phyt
opla
nkto
n bi
omas
s, m
easu
red
as w
ater
col
umn
chlo
roph
yll-a
sho
uld
not e
xcee
d 10
ug
l-1; m
aint
ain
high
sub
tidal
ben
thic
mic
roal
gal b
iom
ass
durin
g th
e cl
osed
mou
th p
hase
and
hig
h in
terti
dal b
enth
ic
mic
roal
gal b
iom
ass
durin
g th
e op
en p
hase
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 349
59
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, di
strib
utio
n an
d ric
hnes
s of
m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n th
e di
strib
utio
n of
pla
nt c
omm
unity
type
s i.e
. sub
mer
ged
mac
roph
yte,
Rup
pia
cirrh
osa
beds
du
ring
clos
ed m
outh
bra
ckis
h co
nditi
ons,
sal
t mar
sh,
Salic
orni
a m
eyer
iana
mar
sh d
urin
g op
en m
outh
co
nditi
ons,
Phr
agm
ites
aust
ralis
sta
nds
in th
e m
iddl
e / u
pper
reac
hes
and
salt
mar
sh g
rass
es in
dica
tive
of
brac
kish
con
ditio
ns.
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
The
estu
ary
shou
ld h
ave
viab
le p
opul
atio
ns o
f C
allia
nass
a kr
auss
i in
sand
y zo
nes
and
U. A
frica
na
in m
uddy
zon
es
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Ret
ain
the
follo
win
g fis
h as
sem
blag
es in
the
estu
ary
(bas
ed o
n ab
unda
nce)
: es
tuar
ine
spec
ies
(30-
40%
), es
tuar
ine
asso
ciat
ed m
arin
e sp
ecie
s (6
0-70
%) a
nd
indi
geno
us fr
eshw
ater
spe
cies
(<1%
). Al
l nu
mer
ical
ly d
omin
ant s
peci
es a
re re
pres
ente
d by
0+
juve
nile
s
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
The
estu
ary
shou
ld c
onta
in a
rich
avi
faun
al
com
mun
ity th
at in
clud
es re
pres
enta
tives
of a
ll th
e or
igin
al g
roup
s, s
igni
fican
t num
bers
of m
igra
tory
w
ader
s an
d te
rns,
as
wel
l as
a he
alth
y br
eedi
ng
popu
latio
n of
resi
dent
wad
ers;
the
estu
ary
shou
ld
supp
ort t
hous
ands
of b
irds
in s
umm
er a
nd h
undr
eds
in w
inte
r
H17 Overberg East Fynbos
II
G50A
H17-E08
Ratel Estuary
nxi3
C
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n at
leas
t pre
sent
-da
y ba
se fl
ows
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
90.0 90.0 90.1 90.3 90.2 90.2 90.0 90.0 90.0 90.0 90.0 90.0 90.0
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<30
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
25 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
10 <
Sal
inity
<40
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
En
tire
estu
ary
and
river
inflo
w: D
O >
6 m
g/ℓ
Turb
idity
Tu
rbid
ity <
5 N
TU
Path
ogen
s En
tero
cocc
i C
once
ntra
tions
of
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
350 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
60
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Esch
eric
hia
coli
wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
seli n
e
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt
to m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n th
e di
strib
utio
n of
diff
eren
t phy
topl
ankt
on
grou
ps a
nd lo
w b
iom
ass
(< 2
0 µg
l-1)
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, di
strib
utio
n an
d ric
hnes
s of
m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n th
e di
strib
utio
n of
cur
rent
mac
roph
yte
habi
tats
, <20
% c
hang
e in
the
area
cov
ered
by
diffe
rent
mac
roph
yte
habi
tats
(acc
ount
s fo
r nat
ural
ch
ange
s du
e to
the
dyna
mic
nat
ure
of e
stua
ries)
; su
bmer
ged
mac
roph
ytes
suc
h as
pon
dwee
d (P
otam
oget
on p
ectin
atus
) sho
uld
be p
rese
nt d
urin
g lo
w fl
ow c
ondi
tions
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
The
estu
ary
shou
ld h
ave
viab
le p
opul
atio
ns o
f C
allia
nass
a kr
auss
i in
sand
y zo
nes
and
Upo
gebi
a af
rican
a in
mud
dy z
ones
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd 1
in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, but
th
e pr
opor
tion
of e
stua
ry d
epen
dent
mar
ine
spec
ies
(bas
ed o
n ab
unda
nce)
sho
uld
not f
all b
elow
2%
.
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 351
61
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
H17 Overberg East Fynbos
II
G50F
H17-E09
Heuningnes Estuary
nxi1
A/
B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Floo
d an
d br
each
ing
regi
mes
to m
aint
ain
the
sedi
men
t dis
tribu
tion
patte
rns
and
aqua
tic
habi
tat (
inst
ream
phy
sica
l ha
bita
t) so
as
not t
o ex
ceed
TPC
s fo
r bio
ta
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
79.6 77.5 73.1 71.5 72.5 76.2 79.1 79.2 79.0 78.4 78.7 78.2 78.2
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<30
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
25 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
salin
ity in
the
estu
ary
is a
rtific
ially
ele
vate
d at
pre
sent
due
to re
duce
d fre
shw
ater
inflo
w, t
arge
t le
vels
for t
he v
ario
us z
ones
are
as
follo
ws:
Zon
e A:
30
, Zon
e B:
14,
Zon
e C
: 6, Z
one
D: 2
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
En
tire
estu
ary
and
river
inflo
w: D
O >
5 m
g/ℓ
pH
8< p
H <
9
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
seli n
e
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt
to m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a M
icro
alga
e
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Phyt
opla
nkto
n bi
omas
s, m
easu
red
as w
ater
col
umn
chlo
roph
yll-a
sho
uld
not e
xcee
d 10
µg
l-1 in
bot
h th
e es
tuar
y an
d So
eten
dals
vlei
(Zon
e D
); m
aint
ain
dive
rsity
of p
hyto
plan
kton
gro
ups
i.e. d
iato
ms
abun
dant
dur
ing
mar
ine
phas
e.
352 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
62
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, di
strib
utio
n an
d ric
hnes
s of
m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Area
cov
ered
by
diffe
rent
mac
roph
yte
habi
tats
pa
rticu
larly
inte
rtida
l and
sup
ratid
al s
alt m
arsh
sh
ould
be
allo
wed
to re
vert
to a
mor
e na
t ura
l sta
te
thro
ugh
rest
orat
ion
of a
mor
e na
tura
l flo
w re
gim
e (p
artic
ular
ly s
umm
er b
ase
flow
s) a
nd b
y al
low
ing
mou
th o
pera
te n
orm
ally
as
far a
s po
ssib
le (m
inim
um
heig
ht fo
r arti
ficia
l bre
achi
ng to
be
incr
ease
d to
2.5
m
) bre
achi
ng w
hich
will
incr
ease
bac
kflo
odin
g an
d so
il sa
linity
; pre
sent
are
a (2
014)
cov
ered
by
the
mac
roph
yte
habi
tats
is a
s fo
llow
s: O
pen
surfa
ce
wat
er a
rea
:907
.92,
San
d an
d m
udfla
ts :4
3.35
, Su
bmer
ged
mac
roph
ytes
:10.
17, R
eeds
and
se
dges
:115
4.98
, Int
ertid
al s
alt m
arsh
:16.
18 ,
Supr
atid
al s
alt m
arsh
:942
.4
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Bent
hic
inve
rtebr
ates
: Abu
ndan
ce o
f C. k
raus
si a
nd
U. A
frica
na s
houl
d no
t dro
p be
low
50%
of r
ecor
ded
tota
l abu
ndan
ces
in e
ach
seas
on, r
ecru
its s
houl
d be
re
cord
ed in
pop
ulat
ion
(Iden
tify
zone
s w
here
thes
e ar
e ab
unda
nt fr
om th
e ba
selin
e st
udy
and
thes
e w
ould
be
whe
re th
e ab
ove
wou
ld b
e as
sess
ed;
Zoop
lank
ton:
Pro
long
ed c
lose
mou
th w
ould
resu
lt in
a
loss
of m
arin
e sp
ecie
s (e
.g. P
seud
odia
ptom
us s
p.)
from
the
zoop
lank
ton
com
mun
ity, a
bund
ance
of
indi
cato
r mar
ine
spec
ies
(e.g
. Pse
udod
iapt
omus
sp.
) sh
ould
not
cha
nge
by m
ore
than
50%
of c
urre
nt
leve
ls
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Ret
ain
the
follo
win
g fis
h as
sem
blag
es in
the
estu
ary
(bas
ed o
n ab
unda
nce)
: est
uarin
e sp
e cie
s (2
0-30
%),
estu
arin
e as
soci
ated
mar
ine
spec
ies
(60-
70%
) and
in
dige
nous
fres
hwat
er s
peci
es (<
1%);
all n
umer
ical
ly
dom
inan
t spe
cies
are
repr
esen
ted
by 0
+ ju
veni
les;
ab
unda
nce
of e
stua
ry a
ssoc
iate
d m
arin
e sp
ecie
s sh
ould
not
dro
p be
low
50%
of t
otal
abu
ndan
ce;
abun
danc
e of
est
uarin
e sp
ecie
s sh
ould
not
incr
ease
ab
ove
50%
of t
otal
abu
ndan
ce; a
lien
fresh
wat
er
spec
ies
shou
ld n
ot b
e pr
esen
t in
the
estu
ary;
0+
juve
nile
s of
all
of th
e do
min
ant f
ish
spec
ies
shou
ld
be p
rese
nt
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 353
63
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
The
estu
ary
shou
ld c
onta
in a
rich
avi
faun
al
com
mun
ity th
at in
clud
es re
pres
enta
tives
of a
ll th
e or
igin
al g
roup
s, s
igni
fican
t num
bers
of m
igra
tory
w
ader
s an
d te
rns,
as
wel
l as
a he
alth
y br
eedi
ng
popu
latio
n of
resi
dent
wad
ers.
The
est
uary
sho
uld
supp
ort t
hous
ands
of b
irds
in s
umm
er a
nd h
undr
eds
in w
inte
r; nu
mbe
rs o
f wat
erfo
wl s
houl
d no
t dro
p be
low
600
, wad
ers
belo
w 1
00 in
sum
mer
, and
tern
s be
low
250
; ove
rall
num
bers
of b
ird s
peci
es s
houl
d no
t dro
p be
low
100
0 fo
r 3 c
onse
cutiv
e co
unts
H17 Overberg East Fynbos
II
G50K
H17-E10
Klipdrifsfontein Estuary
bxi3
A
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n at
leas
t pre
sent
-da
y ba
se fl
ows
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
62.5 68.0 63.3 58.4 58.3 65.7 68.6 64.4 60.2 61.2 66.8 64.3 64.8
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<30
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
25 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
10 <
Sal
inity
<40
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
En
tire
estu
ary
and
river
inflo
w: D
O >
6 m
g/ℓ
Turb
idity
Tu
rbid
ity <
5 N
TU
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
seli n
e
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt
to m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
354 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
64
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n th
e di
strib
utio
n of
diff
eren
t phy
topl
ankt
on
grou
ps a
nd lo
w b
iom
ass
(< 2
0 µg
l-1)
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, di
strib
utio
n an
d ric
hnes
s of
m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n th
e di
strib
utio
n of
cur
rent
mac
roph
yte
habi
tats
, <20
% c
hang
e in
the
area
cov
ered
by
diffe
rent
mac
roph
yte
habi
tats
(acc
ount
s fo
r nat
ural
ch
ange
s du
e to
the
dyna
mic
nat
ure
of e
stua
ries)
; su
bmer
ged
mac
roph
ytes
suc
h as
pon
dwee
d (P
otam
oget
on p
ectin
atus
) sho
uld
be p
rese
nt d
urin
g lo
w fl
ow c
ondi
tions
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
The
estu
ary
shou
ld h
ave
viab
le p
opul
atio
ns o
f C
allia
nass
a kr
auss
i in
sand
y zo
nes
and
Upo
gebi
a af
rican
a in
mud
dy z
ones
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd 1
in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, but
th
e pr
opor
tion
of e
stua
ry d
epen
dent
mar
ine
spec
ies
(bas
ed o
n ab
unda
nce)
sho
uld
not f
all b
elow
2%
. Ta
ble
21: R
esou
rce
Qua
lity
Obj
ectiv
es fo
r EST
UARI
ES in
prio
rity
Reso
urce
Uni
ts in
the
Inte
grat
ed U
nit o
f Ana
lysi
s F1
1 Lo
wer
Bre
ede
Reno
ster
veld
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
R U Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
F11 Lower Breede Renosterveld
II
H70K
F11-E11
Breede Estuary
nxi2
B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e as
per
re
com
men
ded
ecol
ogic
al
flow
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
57.6 50.1 34.0 33.0 34.6 41.7 59.7 56.6 61.2 47.6 51.3 27.3 47.2
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<30
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
25 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Zone
A (0
-15
km u
pstre
am o
f mou
th):
40>
Salin
ity
>20,
Zon
e B
(15 -
30 k
m):
30>
Salin
ity >
10, Z
one
C
(30-
40 k
m):
20>
Salin
ity >
5, Z
one
D (4
0-50
km
): <1
0
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 355
65
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
R U Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Syst
em
varia
bles
D
isso
lved
ox
ygen
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
Entir
e es
tuar
y an
d riv
er in
flow
: DO
>5
mg/
ℓ
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity w
ith
mar
ine
envi
ronm
ent
Estu
ary
mou
th p
erm
anen
tly o
pen
Tida
l var
iatio
n Av
erag
e tid
al a
mpl
itude
nea
r the
mou
th d
urin
g lo
w
flow
s (s
umm
er) m
ust n
ot c
hang
e by
>10
% fr
om
esta
blis
hed
base
line.
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e to
mai
ntai
n na
tura
l bat
hym
etry
and
the
sedi
men
t cha
ract
eris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Med
ian
phyt
opla
nkto
n ch
loro
phyl
l a (m
inim
um 5
si
tes)
not
to e
xcee
d 3.
5 μg
/ℓ; p
reve
nt fo
rmat
ion
of
loca
lised
phy
topl
ankt
on b
loom
s; m
aint
ain
a hi
gh
med
ian
inte
rtida
l ben
thic
mic
roal
gal b
iom
ass;
m
edia
n in
terti
dal b
enth
ic c
hlor
ophy
ll a
(min
imum
5
site
s) n
ot to
exc
eed
42 m
g/m
2; site
spe
cific
ch
loro
phyl
l a c
once
ntra
tion
not t
o ex
ceed
20
μg/ℓ
and
cell
dens
ity n
ot to
exc
eed
10 0
00 c
ells
/ℓ.
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n th
e pr
esen
t are
a (2
014)
cov
ered
by
the
mac
roph
yte
habi
tats
: int
ertid
al s
alt m
arsh
: 20.
5 ha
, su
prat
idal
sal
t mar
sh: 2
9.55
ha,
sub
mer
ged
mac
roph
ytes
: 6 h
a, re
eds
& se
dges
: 4.8
ha,
sa
nd/m
ud b
anks
: 136
ha;
mai
ntai
n th
e in
tegr
ity o
f th
e re
mai
ning
sup
ratid
al s
alt m
arsh
; mai
ntai
n th
e re
ed a
nd s
edge
sta
nds
in th
e up
per r
each
es o
f the
es
tuar
y; re
habi
litat
e 20
% o
f the
floo
dpla
in h
abita
t by
rem
ovin
g an
y ag
ricul
tura
l ber
ms
and
inva
sive
pla
nts;
m
aint
ain
the
inte
grity
of t
he ri
paria
n zo
ne.;
inva
sive
pl
ants
(e.g
. Euc
alyp
tus,
pric
kly
pear
, Tam
arix
) cov
er
not t
o ex
ceed
5%
of t
otal
floo
dpla
in a
rea
356 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
66
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
R U Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Mai
ntai
n ric
h po
pula
tions
of t
he m
udpr
awn
Upo
gebi
a af
rican
a on
mud
bank
s in
the
mid
dle
estu
ary
(Zon
e B)
; mai
ntai
n ric
h in
verte
brat
e co
mm
uniti
es
asso
ciat
ed w
ith th
e R
EI z
one
in th
e up
per e
stua
ry
(zoo
plan
kton
and
ben
thos
); m
udpr
awn
dens
ity
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ine
leve
ls b
y m
ore
than
25%
in e
ach
seas
on; d
omin
ant s
peci
es in
th
e zo
ne (z
oopl
ankt
on a
nd b
enth
os) s
houl
d no
t de
viat
e fro
m a
vera
ge b
asel
ine
leve
ls b
y m
ore
than
40
% in
eac
h se
ason
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0-80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0 -20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; Cat
egor
y IIa
ob
ligat
e de
pend
ents
sho
uld
be w
ell r
epre
sent
ed b
y la
rge
expl
oite
d sp
ecie
s
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
The
estu
ary
shou
ld c
onta
in a
div
erse
avi
faun
al
com
mun
ity th
at in
clud
es re
pres
enta
tives
of a
ll th
e or
igin
al ta
xono
mic
gro
ups
(see
201
5 EW
R re
port)
.; te
rn ro
osts
sho
uld
be s
een
at th
e es
tuar
y on
a
regu
lar b
asis
; apa
rt fro
m g
ulls
, ter
ns a
nd re
gio n
ally
in
crea
sing
spe
cies
suc
h as
Egy
ptia
n G
oose
, the
es
tuar
y sh
ould
gen
eral
ly s
uppo
rt m
ore
than
200
bi
rds;
num
bers
of b
irds
othe
r tha
n gu
lls, t
erns
and
re
gion
ally
incr
easi
ng s
peci
es s
houl
d no
t fal
l bel
ow
120
for t
hree
con
secu
tive
coun
ts; n
umbe
rs o
f w
ater
bird
spe
cies
dro
p sh
ould
not
bel
ow 1
5 fo
r 3
cons
ecut
ive
coun
ts
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 357
67
Tabl
e 22
: Res
ourc
e Q
ualit
y O
bjec
tives
for E
STUA
RIES
in p
riorit
y Re
sour
ce U
nits
in th
e In
tegr
ated
Uni
t of A
naly
sis
F13
Low
er G
ourit
z
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
F13 Lower Gouritz
II
J40E
F13-E12
Gouritz Estuary
gxi1
C
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e as
per
re
com
men
ded
ecol
ogic
al
flow
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
53.2 59.8 53.5 46.4 53.3 59.7 61.8 66.7 62.2 62.8 74.1 57.8 59.7
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Riv
er in
flow
: NO
x-N
not
to e
xcee
d 10
0 μg
/ℓ ov
er 2
co
nsec
utiv
e m
onth
s, N
H3-N
not
to e
xcee
d 20
μg/
ℓ ov
er 2
con
secu
tive
mon
ths;
Est
uary
(exc
ept d
urin
g up
wel
ling
or fl
oods
): av
erag
e N
Ox-
N n
ot to
exc
eed
100
μg/ℓ,
no
sing
le m
easu
rem
ent t
o ex
ceed
150
μg
/ℓ, a
vera
ge N
H3-N
not
to e
xcee
d 20
μg/
ℓ dur
ing
surv
ey, n
o si
ngle
mea
sure
men
t to
exce
ed 1
00 μ
g/ℓ
DIP
Riv
er in
flow
: PO
4-P n
ot to
exc
eed
20 μ
g/ℓ o
ver 2
co
nsec
utiv
e m
onth
s; E
stua
ry (e
xcep
t dur
ing
upw
ellin
g or
floo
ds):
aver
age
PO4-P
not
to e
xcee
d 20
μg/
ℓ dur
ing
surv
ey, n
o si
ngle
mea
sure
men
t to
exce
ed 5
0 μg
/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Salin
ity s
houl
d no
t exc
eed
0 at
hea
d of
est
uary
, av
erag
e sa
linity
in Z
one
C <
20,
Ave
rage
sal
inity
11
km u
pstre
am fr
om m
outh
> 2
0 fo
r no
mor
e th
an 3
m
onth
s of
the
year
, sal
inity
<40
in s
altm
arsh
se
dim
ents
Sy
stem
va
riabl
es
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
En
tire
estu
ary
and
river
inflo
w: D
O >
5 m
g/ℓ
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity w
ith
mar
ine
envi
ronm
ent
Estu
ary
mou
th p
erm
anen
tly o
pen
Tida
l var
iatio
n Av
erag
e tid
al a
mpl
itude
nea
r the
mou
th d
urin
g lo
w
flow
s (s
umm
er) m
ust n
ot c
hang
e by
>10
% fr
om
esta
blis
hed
base
line.
Sedi
men
ts
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e to
mai
ntai
n na
tura
l bat
hym
etry
and
the
sedi
men
t cha
ract
e ris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
358 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
68
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Med
ian
phyt
opla
nkto
n ch
loro
phyl
l a (m
inim
um 5
si
tes)
sho
uld
not e
xcee
d 3.
5 μg
/ ℓ; p
reve
nt fo
rmat
ion
of lo
calis
ed p
hyto
plan
kton
blo
oms;
site
spe
cific
ch
loro
phyl
l a c
once
ntra
tion
exce
eds
20 μ
g/ℓ a
nd c
ell
dens
ity e
xcee
ds 1
0 00
0 ce
lls/ m
ℓ ; M
edia
n in
terti
dal
bent
hic
chlo
roph
yll a
(min
imum
5 s
ites)
exc
eeds
42
mg/
m2
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n th
e pr
esen
t are
a (2
013)
cov
ered
by
the
mac
roph
yte
habi
tats
: sur
face
wat
er a
rea:
298
.04
ha,
sand
and
mud
ban
ks :
81.0
2 ha
, ree
ds a
nd s
edge
s 6.
72 h
a, fl
oodp
lain
(sup
ratid
al s
alt m
arsh
): 13
7.77
ha
; Mai
ntai
n th
e in
tegr
ity o
f the
rem
aini
ng s
upra
tidal
sa
lt m
arsh
; mai
ntai
n th
e re
ed a
nd s
edge
sta
nds
in
the
uppe
r rea
ches
of t
he e
stua
ry; r
ehab
ilitat
e 20
% o
f th
e flo
odpl
ain
habi
tat b
y re
mov
ing
any
agric
ultu
ral
berm
s an
d in
vasi
ve p
lant
s; m
aint
ain
the
inte
grity
of
the
ripar
ian
zone
; cha
nge
in th
e ar
ea c
over
ed b
y sa
lt m
arsh
, ree
ds a
nd s
edge
s no
t to
exce
ed 2
0% fr
om
base
line;
inva
sive
pla
nts
(e.g
. Euc
alyp
tus,
pric
kly
pear
, Tam
arix
) cov
er n
ot to
exc
eed
5% o
f tot
al
flood
plai
n ar
ea
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Mai
ntai
n ric
h po
pula
tions
of t
he m
udpr
awn
Upo
gebi
a af
rican
a on
mud
bank
s in
the
mid
dle
estu
ary
(Zon
es A
and
B);
mud
praw
n de
nsity
sho
uld
not d
evia
te fr
om a
vera
ge b
asel
ine
leve
ls b
y m
ore
than
25%
in e
ach
seas
on; m
aint
ain
rich
inve
rtebr
ate
com
mun
ities
ass
ocia
ted
with
the
REI
zon
e in
the
uppe
r est
uary
(zoo
plan
kton
and
ben
thos
); th
e do
min
ant s
peci
es in
the
zone
(zoo
plan
kton
and
be
ntho
s) s
houl
d no
t dev
iate
from
ave
rage
bas
elin
e le
vels
by
mor
e th
an 4
0% in
eac
h se
ason
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 359
69
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0-80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0-20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; Cat
egor
y IIa
ob
ligat
e de
pend
ents
sho
uld
be w
ell r
epre
sent
ed b
y la
rge
expl
oite
d sp
ecie
s
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
The
estu
ary
shou
ld c
onta
in a
div
erse
avi
faun
al
com
mun
ity th
at in
clud
es re
pres
enta
tives
of a
ll th
e or
igin
al ta
xono
mic
gro
ups
(see
201
5 EW
R re
port)
.; te
rn ro
osts
sho
uld
be s
een
at th
e es
tuar
y on
a
regu
lar b
asis
; apa
rt fro
m g
ulls
, ter
ns a
nd re
gion
ally
in
crea
sing
spe
cies
suc
h as
Egy
ptia
n G
oose
, the
es
tuar
y sh
ould
gen
eral
ly s
uppo
rt m
ore
than
200
bi
rds;
num
bers
of b
irds
othe
r tha
n gu
lls, t
erns
and
re
gion
ally
incr
easi
ng s
peci
es s
houl
d no
t fal
l bel
ow
120
for t
hree
con
secu
tive
coun
ts; n
umbe
rs o
f w
ater
bird
spe
cies
dro
p sh
ould
not
bel
ow 1
5 fo
r 3
cons
ecut
ive
coun
ts
Tabl
e 23
: Res
ourc
e Q
ualit
y O
bjec
tives
for E
STUA
RIES
in p
riorit
y Re
sour
ce U
nits
in th
e In
tegr
ated
Uni
t of A
naly
sis
F12
Duiw
enho
ks
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
F12 Duiwenhoks
III
H80E
F12-E13
Duiwenhoks Estuary
gxi2
B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e as
per
TEC
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
92.2 92.0 87.7 84.0 84.7 90.7 92.9 93.5 93.5 93.8 94.4 93.5 91.9
Qua
lity
Nut
rient
s D
IN
Inor
gani
c nu
trien
t co
ncen
tratio
ns n
ot to
ex
ceed
TPC
s fo
r m
acro
phyt
es a
nd
mic
roal
gae
Riv
er in
flow
: NO
x-N
not
to e
xcee
d 10
0 μg
/ℓ ov
er 2
co
nsec
utiv
e m
onth
s, N
H3-N
not
to e
xcee
d 20
μg/
ℓ ove
r 2
cons
ecut
ive
mon
ths;
Est
uary
(exc
ept d
urin
g up
wel
ling
or
flood
s): a
vera
ge N
Ox-
N n
ot to
exc
eed
100
μg/ℓ,
no
sing
le
mea
sure
men
t to
exce
ed 1
50 μ
g/ℓ,
aver
age
NH
3-N n
ot to
ex
ceed
20
μg/ℓ
durin
g su
rvey
, no
sing
le m
easu
rem
ent t
o ex
ceed
100
μg/
ℓ
360 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
70
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
DIP
Riv
er in
flow
: PO
4-P n
ot to
exc
eed
20 μ
g/ℓ o
ver 2
co
nsec
utiv
e m
onth
s; E
stua
ry (e
xcep
t dur
ing
upw
ellin
g or
flo
ods)
: ave
rage
PO
4-P n
ot to
exc
eed
20 μ
g/ℓ d
urin
g su
rvey
, no
sing
le m
easu
rem
ent t
o ex
ceed
50
μg/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
inve
rtebr
ates
, m
acro
phyt
es a
nd
mic
roal
gae
Salin
ity s
houl
d no
t exc
eed
0 at
hea
d of
est
uary
, ave
rage
sa
linity
in Z
one
C <
20,
Ave
rage
sal
inity
11
km u
pstre
am
from
mou
th >
20
for n
o m
ore
than
3 m
onth
s of
the
year
Syst
em
varia
bles
D
isso
lved
ox
ygen
Syst
em v
aria
bles
not
to
exc
eed
TPC
s fo
r bi
ota
Entir
e es
tuar
y an
d riv
er in
flow
: DO
>5
mg/
ℓ
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull c
onta
ct
recr
eatio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity
with
mar
ine
envi
ronm
ent a
t a
leve
l tha
t ens
ures
w
ater
qua
lity
and
habi
tat r
emai
ns
suita
ble
for b
iota
ty
pica
lly fo
und
in th
e es
tuar
y
Estu
ary
mou
th p
erm
anen
tly o
pen
Tida
l var
iatio
n Av
erag
e tid
al a
mpl
itude
nea
r the
mou
th d
oes
not c
hang
e m
ore
than
30%
from
pre
sent
dur
ing
low
flow
s (s
umm
er).
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
su
ffici
ent t
o m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>10
% fr
om e
stab
lishe
d ba
selin
e
Biot
a M
icro
alga
e
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd m
ediu
m-
low
bio
mas
s
Med
ian
phyt
opla
nkto
n ch
loro
phyl
l a (m
inim
um 5
site
s) n
ot
to e
xcee
d 3.
5 μg
/ℓ; p
reve
nt fo
rmat
ion
of lo
calis
ed
phyt
opla
nkto
n bl
oom
s; m
aint
ain
a hi
gh m
edia
n in
terti
dal
bent
hic
mic
roal
gal b
iom
ass;
med
ian
inte
rtida
l ben
thic
ch
loro
phyl
l a (m
inim
um 5
site
s) n
ot to
exc
eed
42 m
g/m
2;
s ite s
peci
fic c
hlor
ophy
ll a
conc
entra
tion
not t
o ex
ceed
20
μg/ℓ
and
cell
dens
ity n
ot to
exc
eed
10 0
00 c
ells
/ℓ.
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 361
71
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, di
strib
utio
n an
d ric
hnes
s of
m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of
the
EFZ
by a
lien
spec
ies
Mai
ntai
n th
e pr
esen
t are
a (2
013)
cov
ered
by
the
mac
roph
yte
habi
tats
: sur
face
wat
er a
rea:
40
ha, S
and
and
mud
ban
ks :
29 h
a, S
alt m
arsh
: 26
ha, R
eeds
and
se
dges
3 h
a, F
lood
plai
n: 6
ha;
Inva
sive
pla
nts
(e.g
. bla
ck
wat
tle, p
rickl
y pe
ar, T
amar
ix) c
over
mus
t rem
ain
< 5%
of
tota
l flo
odpl
ain
area
; mai
ntai
n th
e in
tegr
ity o
f the
sal
t m
arsh
; mai
ntai
n th
e re
ed a
nd s
edge
sta
nds
in th
e m
iddl
e an
d up
per r
each
es o
f the
est
uary
; reh
abilit
ate
10%
of t
he
flood
plai
n ha
bita
t by
rem
ovin
g an
y ag
ricul
tura
l ber
ms
and
inva
sive
pla
nts;
mai
ntai
n th
e in
tegr
ity o
f the
ripa
rian
zone
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
be
nthi
c m
acro
faun
a an
d zo
opla
nkto
n
Mai
ntai
n ric
h po
pula
tions
of t
he m
udpr
awn
Upo
gebi
a af
rican
a on
mud
bank
s in
the
mid
dle
estu
ary
(Zon
es A
and
B)
; mud
praw
n de
nsity
sho
uld
not d
evia
te fr
om a
vera
ge
base
line
leve
ls b
y m
ore
than
25%
in e
ach
seas
on;
mai
ntai
n ric
h in
verte
brat
e co
mm
uniti
es a
ssoc
iate
d w
ith
the
REI
zon
e in
the
uppe
r est
uary
(zoo
plan
kton
and
be
ntho
s); t
he d
omin
ant s
peci
es in
the
zone
(zoo
plan
kton
an
d be
ntho
s) s
houl
d no
t dev
iate
from
ave
rage
bas
elin
e le
vels
by
mor
e th
an 4
0% in
eac
h se
ason
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fis
h, p
reve
nt
colo
nisa
tion/
incr
ease
of
alie
n sp
ecie
s
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
ab
unda
nce)
to th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
re
port)
; num
eric
ally
ass
embl
age
shou
ld c
ompr
ise:
Ia
estu
arin
e re
side
nts
(50-
80%
of t
otal
abu
ndan
ce),
Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0 -20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III
mar
ine
vagr
ants
(not
mor
e th
an 5
%),
IV in
dige
nous
fish
(1
-5%
), V
cata
drom
ous
spec
ies
(1-5
%);
Cat
egor
y Ia
sp
ecie
s sh
ould
con
tain
via
ble
popu
latio
ns o
f at l
east
4
spec
ies;
Cat
egor
y IIa
obl
igat
e de
pend
ents
sho
uld
be w
ell
repr
esen
ted
by la
rge
expl
oite
d sp
ecie
s
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
The
estu
ary
shou
ld c
onta
in a
div
erse
avi
faun
al
com
mun
ity th
at in
clud
es re
pres
enta
tives
of a
ll th
e or
igin
al
taxo
nom
ic g
roup
s (s
ee 2
015
EWR
repo
rt).;
tern
roos
ts
shou
ld b
e se
en a
t the
est
uary
on
a re
gula
r bas
is; a
part
from
gul
ls, t
erns
and
regi
onal
ly in
crea
sing
spe
cies
suc
h as
Egy
ptia
n G
oose
, the
est
uary
sho
uld
gene
rally
sup
port
mor
e th
an 2
00 b
irds;
num
bers
of b
irds
othe
r tha
n gu
lls,
tern
s an
d re
gion
ally
incr
easi
ng s
p eci
es s
houl
d no
t fal
l be
low
120
for t
hree
con
secu
tive
coun
ts; n
umbe
rs o
f w
ater
bird
spe
cies
dro
p sh
ould
not
bel
ow 1
5 fo
r 3
cons
ecut
ive
coun
ts
362 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
72
Tabl
e 24
: Res
ourc
e Q
ualit
y O
bjec
tives
for E
STUA
RIES
in p
riorit
y Re
sour
ce U
nits
in th
e In
tegr
ated
Uni
t of A
naly
sis
I18
Hess
equa
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
R U Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
I18 Hessequa
III
H90E
I18-E14
Goukou Estuary
gxi3
C
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e as
pe
r rec
omm
ende
d ec
olog
ical
flow
En
sure
the
pers
iste
nce
of
fresh
wat
er s
eepa
ge s
ites
in th
e lo
wer
and
mid
dle
reac
hes
of th
e es
tuar
y.
Riv
er in
flow
sho
uld
not
drop
M
aint
ain
wat
er le
vels
in
foun
tain
s (d
eter
min
e tro
ugh
base
line
stud
y)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
81.7 81.4 72.8 70.0 71.2 81.9 85.0 85.0 84.1 84.5 85.7 83.8 81.4
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Riv
er in
flow
: NO
x-N
not
to e
xcee
d 10
0 μg
/ℓ ov
er 2
co
nsec
utiv
e m
onth
s, N
H3-N
not
to e
xcee
d 20
μg/
ℓ ove
r 2
cons
ecut
ive
mon
ths;
Est
uary
(exc
ept d
urin
g up
wel
ling
or fl
oods
): av
erag
e N
Ox-
N n
ot to
exc
eed
100
μg/ℓ,
no
sing
le m
easu
rem
ent t
o ex
ceed
150
μg/
ℓ, av
erag
e N
H3-N
not
to e
xcee
d 20
μg/
ℓ dur
ing
surv
ey,
no s
ingl
e m
easu
rem
ent t
o ex
ceed
100
μg/
ℓ
DIP
Riv
er in
flow
: PO
4-P n
ot to
exc
eed
20 μ
g/ℓ o
ver 2
co
nsec
utiv
e m
onth
s; E
stua
ry (e
xcep
t dur
ing
upw
ellin
g or
floo
ds):
aver
age
PO4-P
not
to e
xcee
d 20
μg/
ℓ dur
ing
surv
ey, n
o si
ngle
mea
sure
men
t to
exce
ed 5
0 μg
/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es,
mac
roph
ytes
and
m
icro
alga
e
Salin
ity s
houl
d no
t exc
eed
0 at
hea
d of
est
uary
, av
erag
e sa
linity
in Z
one
C <
20,
Ave
rage
sal
inity
11
km u
pstre
am fr
om m
outh
> 2
0 fo
r no
mor
e th
an 3
m
onth
s of
the
year
, sal
inity
<40
in s
altm
arsh
se
dim
ents
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
En
tire
estu
ary
and
river
inflo
w: D
O >
5 m
g/ℓ
pH
6.0
< pH
> 8
.0 (b
lack
wat
er s
yste
m)
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acc
epta
ble
cate
gory
fo
r ful
l con
tact
recr
eatio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity w
ith E
stua
ry m
outh
per
man
ently
ope
n
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 363
73
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
R U Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Tida
l var
iatio
n
mar
ine
envi
ronm
ent a
t a
leve
l tha
t ens
ures
wat
er
qual
ity a
nd h
abita
t re
mai
ns s
uita
ble
for b
iota
ty
pica
lly fo
und
in th
e es
tuar
y
Aver
age
tidal
am
plitu
de n
ear t
he m
outh
dur
ing
low
flo
ws
(sum
mer
) mus
t not
cha
nge
by >
10%
from
es
tabl
ishe
d ba
selin
e.
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt
to m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd m
ediu
m-lo
w
biom
ass
Med
ian
phyt
opla
nkto
n ch
loro
phyl
l a (m
inim
um 5
site
s)
not t
o ex
ceed
3.5
μg/
ℓ; pr
even
t for
mat
ion
of lo
calis
ed
phyt
opla
nkto
n bl
oom
s; m
aint
ain
a hi
gh m
edia
n in
terti
dal b
enth
ic m
icro
alga
l bio
mas
s; m
edia
n in
terti
dal
bent
hic
chlo
roph
yll a
(min
imum
5 s
ites)
not
to e
xcee
d 42
mg/
m2;
site
spe
cific
chl
orop
hyll
a co
ncen
tratio
n no
t to
exc
eed
20 μ
g/ℓ a
nd c
ell d
ensi
ty n
ot to
exc
eed
1000
0 ce
lls/ℓ.
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, di
strib
utio
n an
d ric
hnes
s of
mac
roph
yte
grou
ps,
limit
colo
nisa
tion/
spre
ad
of th
e EF
Z by
alie
n sp
ecie
s
Mai
ntai
n th
e pr
esen
t are
a (2
014)
cov
ered
by
the
mac
roph
yte
habi
tats
: Ope
n su
rface
wat
er a
rea:
206
, Sa
nd a
nd m
ud b
anks
: 35,
Sub
mer
ged
mac
roph
ytes
: 5,
Salt
mar
sh: 5
7, R
eeds
and
sed
ges:
21;
mai
ntai
n po
cket
s of
reed
s in
low
er a
nd m
iddl
e re
ache
s (li
nked
to
fres
hwat
er s
eepa
ge s
ites)
; mai
ntai
n th
e re
ed a
nd
sedg
e st
ands
in th
e up
per r
each
es o
f the
est
uary
; re
habi
litat
e 20
% o
f the
floo
dpla
in h
abita
t by
rem
ovin
g ag
ricul
ture
and
inva
sive
pla
nts;
mai
ntai
n th
e in
tegr
ity
of th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
diff
eren
t gro
ups
of
bent
hic
mac
rofa
una
and
zoop
lank
ton
Mai
ntai
n ric
h po
pula
tions
of t
he m
udpr
awn
Upo
gebi
a af
rican
a on
mud
bank
s in
the
mid
dle
estu
ary
(Zon
es A
an
d B)
; mud
praw
n de
nsity
sho
uld
not d
evia
te fr
om
aver
age
base
line
leve
ls b
y m
ore
than
25%
in e
ach
seas
on; m
aint
ain
rich
inve
rtebr
ate
com
mun
ities
as
soci
ated
with
the
REI
zon
e in
the
uppe
r est
uary
(z
oopl
ankt
on a
nd b
enth
os);
the
dom
inan
t spe
cies
in
the
zone
(zoo
plan
kton
and
ben
thos
) sho
uld
not
devi
ate
from
ave
rage
bas
elin
e le
vels
by
mor
e th
an
40%
in e
ach
seas
on
364 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
74
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
R U Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
diff
eren
t gro
ups
of fi
sh,
prev
ent
colo
nisa
tion/
incr
ease
of
alie
n sp
ecie
s
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
an
d ab
unda
nce)
to th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly a
ssem
blag
e sh
ould
co
mpr
ise:
Ia e
stua
rine
resi
dent
s (5
0-80
% o
f tot
al
abun
danc
e), I
b m
arin
e an
d es
tuar
ine
bree
ders
(10-
20%
), IIa
obl
igat
e es
tuar
ine-
depe
nden
t (10
-20%
), IIb
es
tuar
ine
asso
ciat
ed s
peci
es (5
-15%
), IIc
mar
ine
oppo
rtuni
sts
(20-
80%
), III
mar
ine
vagr
ants
(not
mor
e th
an 5
%),
IV in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
pop
ulat
ions
of a
t lea
st 4
spe
cies
(; C
ateg
ory
IIa
oblig
ate
depe
nden
ts s
houl
d be
wel
l rep
rese
nted
by
larg
e ex
ploi
ted
spec
ies
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
diff
eren
t avi
faun
a gr
oups
The
estu
ary
shou
ld c
onta
in a
div
erse
avi
faun
al
com
mun
ity th
at in
clud
es re
pres
enta
tives
of a
ll th
e or
igin
al ta
xono
mic
gro
ups
(see
201
5 EW
R re
port)
.; te
rn ro
osts
sho
uld
be s
een
at th
e es
tuar
y on
a re
gula
r ba
sis;
apa
rt fro
m g
ulls
, ter
ns a
nd re
gion
ally
incr
easi
ng
spec
ies
such
as
Egyp
tian
Goo
se, t
he e
stua
ry s
houl
d ge
nera
lly s
uppo
rt m
ore
than
200
bird
s; n
umbe
rs o
f bi
rds
othe
r tha
n gu
lls, t
erns
and
regi
onal
ly in
crea
sing
sp
ecie
s sh
ould
not
fall
belo
w 1
20 fo
r thr
ee c
onse
cutiv
e co
unts
; num
bers
of w
ater
bird
spe
cies
dro
p sh
ould
not
be
low
15
for 3
con
secu
tive
coun
ts
Tabl
e 25
: Res
ourc
e Q
ualit
y O
bjec
tives
for E
STUA
RIES
in p
riorit
y Re
sour
ce U
nits
in th
e In
tegr
ated
Uni
t of A
naly
sis
G14
Gro
ot-B
rak
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
G14 Groot-Brak
III
K10F
G14-E15
Klein-Brak Estuary
gxi4
C
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n a
flow
regi
me
to
crea
te th
e re
quire
d ha
bita
t fo
r bird
s, fi
sh, m
acro
phyt
es,
mic
roal
gae
and
wat
er
qual
ity
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
77.4 77.4 75.1 71.7 70.2 75.8 77.9 78.5 78.0 78.1 79.5 78.8 77.0
Qua
lity
Nut
rient
s D
IN
Inor
gani
c nu
trien
t co
ncen
tratio
ns n
ot to
ex
ceed
TPC
s fo
r m
acro
phyt
es a
nd
mic
roal
gae
Riv
er in
flow
: NO
x-N
not
to e
xcee
d 10
0 μg
/ℓ ov
er 2
co
nsec
utiv
e m
onth
s, N
H3-N
not
to e
xcee
d 20
μg/
ℓ ov
er 2
con
secu
tive
mon
ths;
Est
uary
(exc
ept d
urin
g up
wel
ling
or fl
oods
): av
erag
e N
Ox-
N n
ot to
exc
eed
100
μg/ℓ,
no
sing
le m
easu
rem
ent t
o ex
ceed
150
μg
/ℓ, a
vera
ge N
H3-N
not
to e
xcee
d 20
μg/
ℓ dur
ing
surv
ey, n
o si
ngle
mea
sure
men
t to
exce
ed 1
00 μ
g/ℓ
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 365
75
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
DIP
Riv
er in
flow
: PO
4-P n
ot to
exc
eed
20 μ
g/ℓ o
ver 2
co
nsec
utiv
e m
onth
s; E
stua
ry (e
xcep
t dur
ing
upw
ellin
g or
floo
ds):
aver
age
PO4-P
not
to e
xcee
d 20
μg/
ℓ dur
ing
surv
ey, n
o si
ngle
mea
sure
men
t to
exce
ed 5
0 μg
/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
A sa
linity
gra
dien
t sho
uld
alw
ays
be p
rese
nt in
the
uppe
r rea
ches
of t
he e
stua
ry (Z
one
D a
nd F
), an
R
EI z
one
shou
ld a
lway
s be
pre
sent
in th
e up
per
reac
hes
of th
e es
tuar
y (Z
one
D a
nd F
), sa
linity
sh
ould
not
exc
eed
35
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
Entir
e es
tuar
y an
d riv
er in
flow
: DO
>5
mg/
ℓ
TSS
TSS
<5 m
g/ ℓ
(low
flow
) pH
7.
0 <
pH >
8.5
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (m
edia
n); p
reve
nt fo
rmat
ion
of
phyt
opla
nkto
n bl
oom
s
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
; pr
even
t the
spr
ead
of re
eds
into
ope
n w
ater
; pr
even
t an
incr
ease
in n
utrie
nts
and
mac
roal
gal
bloo
ms;
pre
vent
the
spre
ad o
f inv
asiv
e tre
es (e
.g.
Acac
ia s
pp.)
in th
e rip
aria
n zo
ne
366 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
76
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Mai
ntai
n ric
h po
pula
tions
of t
he m
udpr
awn
Upo
gebi
a af
rican
a on
mud
bank
s in
the
mid
dle
estu
ary
(Zon
es A
and
B);
mud
praw
n de
nsity
sho
uld
not d
evia
te fr
om a
vera
ge b
asel
ine
leve
ls b
y m
ore
than
25%
in e
ach
seas
on; m
aint
ain
rich
inve
rtebr
ate
com
mun
ities
ass
ocia
ted
with
the
REI
zon
e in
the
uppe
r est
uary
(zoo
plan
kton
and
ben
thos
); th
e do
min
ant s
peci
es in
the
zone
(zoo
plan
kton
and
be
ntho
s) s
houl
d no
t dev
iate
from
ave
rage
bas
elin
e le
vels
by
mor
e th
an 4
0% in
eac
h se
ason
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0-80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0 -20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; C
ateg
ory
IIa
oblig
ate
depe
nden
ts s
houl
d be
wel
l rep
rese
nted
by
larg
e ex
ploi
ted
spec
ies
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Estu
ary
shou
ld c
onta
in a
div
erse
avi
faun
al
com
mun
ity th
at in
clud
es re
pres
enta
tives
of a
ll th
e or
igin
al g
roup
s. S
altm
arsh
/wet
land
s in
the
flood
plai
n sh
ould
be
rich
in b
irdlif
e. In
terti
dal a
reas
sh
ould
hav
e a
good
den
sity
and
div
ersi
ty o
f bot
h la
rger
and
sm
alle
r wad
ers;
num
bers
of w
ater
bird
s on
the
entir
e sy
stem
sho
uld
not d
rop
belo
w 3
0 sp
ecie
s or
bel
ow 2
50 b
irds
for t
hree
con
secu
tive
coun
ts; n
umbe
rs o
f wat
erbi
rds
in th
e lo
wer
est
uary
sh
ould
not
dro
p be
low
10
spec
ies
or 5
0 bi
rds
(exc
ludi
ng te
rns
and
gulls
) for
thre
e co
nsec
utiv
e co
unts
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 367
77
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
G14 Groot-Brak
III
K20A
G14-E16
Groot-Brak Estuary
gxi5
E
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n a
flow
regi
me
to
crea
te th
e re
quire
d ha
bita
t fo
r bird
s, fi
sh, m
acro
phyt
es,
mic
roal
gae
and
wat
er
qual
ity.
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
62.2 67.3 55.3 48.2 43.4 55.7 49.2 54.9 38.3 43.7 63.4 63.8 56.2
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Riv
er in
flow
: NO
x-N
not
to e
xcee
d 10
0 μg
/ℓ ov
er 2
co
nsec
utiv
e m
onth
s, N
H3-N
not
to e
xcee
d 20
μg/
ℓ ov
er 2
con
secu
tive
mon
ths;
Est
uary
(exc
ept d
urin
g up
wel
ling
or fl
oods
): av
erag
e N
Ox-
N n
ot to
exc
eed
100
μg/ℓ,
no
sing
le m
easu
rem
ent t
o ex
ceed
150
μg
/ℓ, a
vera
ge N
H3-N
not
to e
xcee
d 20
μg/
ℓ dur
ing
surv
ey, n
o si
ngle
mea
sure
men
t to
exce
ed 1
00 μ
g/ℓ
DIP
Riv
er in
flow
: PO
4-P n
ot to
exc
eed
20 μ
g/ℓ o
ver 2
co
nsec
utiv
e m
onth
s; E
stua
ry (e
xcep
t dur
ing
upw
ellin
g or
floo
ds):
aver
age
PO4-P
not
to e
xcee
d 20
μg/
ℓ dur
ing
surv
ey, n
o si
ngle
mea
sure
men
t to
exce
ed 5
0 μg
/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
A sa
linity
gra
dien
t sho
uld
alw
ays
be p
rese
nt in
the
uppe
r rea
ches
of t
he e
stua
ry (Z
one
D a
nd F
), an
R
EI z
one
shou
ld a
lway
s be
pre
sent
in th
e up
per
reac
hes
of th
e es
tuar
y (Z
one
D a
nd F
), sa
linity
sh
ould
not
exc
eed
35
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
En
tire
estu
ary
and
river
inflo
w: D
O >
5 m
g/ℓ
pH
6 <
pH >
8.5
in e
stua
ry
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
368 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
78
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w p
hyto
plan
kton
bio
mas
s. M
aint
ain
mic
roal
gal g
roup
div
ersi
ty a
s m
easu
red
for t
he
base
line
surv
ey; p
hyto
plan
kton
bio
mas
s sh
ould
not
in
crea
se b
y m
ore
than
20%
abo
ve b
asel
ine
conc
entra
tions
; phy
topl
ankt
on g
roup
div
ersi
ty to
sh
ould
not
cha
nge
mor
e t h
an 2
0% fr
om b
asel
ine
cond
ition
s; m
aint
ain
high
sub
tidal
ben
thic
mic
roal
gal
biom
ass
durin
g th
e cl
osed
mou
th p
hase
and
low
in
terti
dal b
enth
ic m
icro
alga
l bio
mas
s du
ring
the
open
pha
se; E
pipe
lic d
iato
ms
indi
cativ
e of
bra
ckis
h co
nditi
ons
shou
ld b
e fo
und
durin
g th
e cl
osed
pha
se.
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
as
for
pres
ent (
2013
): Su
bmer
ged
mac
roph
yte,
Rup
pia
cirrh
osa
beds
: ~5
ha, Z
oste
ra c
apen
sis
pres
ent
durin
g op
en m
outh
con
ditio
ns, i
nter
tidal
sal
t mar
sh:
~13
ha, s
upra
tidal
and
floo
dpla
in s
alt m
arsh
: ~26
.6
ha),
Ree
d (P
hrag
mite
s au
stra
lis) a
nd s
edge
sta
nds
in th
e m
iddl
e / u
pper
reac
hes:
~2.
5 ha
); pr
even
t ex
cess
ive
filam
ento
us m
acro
alga
l gro
wth
. Are
a co
vere
d sh
ould
be
half
that
cov
ered
by
subm
erge
d m
acro
phyt
es a
nd le
ss th
an 5
0 %
of t
he o
pen
wat
er
surfa
ce a
rea;
mai
ntai
n th
e zo
natio
n of
sal
t mar
sh
and
dist
ribut
ion
of d
iffer
ent s
peci
es a
long
an
elev
atio
n gr
adie
nt. E
nsur
e th
e lo
ng-te
rm
pers
iste
nce
of in
terti
dal s
alt m
arsh
spe
cies
suc
h as
Tr
iglo
chin
spp
. and
Cot
ula
coro
nopi
folia
; pre
vent
hy
pers
alin
e se
dim
ent a
nd g
roun
dwat
er c
ondi
tions
in
the
salt
mar
sh. S
edim
ent e
lect
rical
con
duct
ivity
sh
ould
be
appr
oxim
atel
y 30
mS
and
sim
ilar t
o gr
ound
wat
er v
alue
s.
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Den
sity
of m
udpr
awns
sho
uld
exce
ed 1
00 –
150
bu
rrow
cou
nts
per m
2 in
the
high
est d
ensi
ty a
reas
; in
the
zoop
lank
ton,
the
dens
ity o
f Pse
udod
iapt
omus
he
ssei
sho
uld
exce
ed le
vels
of a
bout
500
0 -10
000
m3
in th
e up
per e
stua
ry in
spr
ing.
Sal
inity
var
iatio
n in
the
estu
ary
is h
ighl
y va
riabl
e an
d th
e m
outh
re
mai
ns c
lose
d fo
r ext
ende
d pe
riods
- th
is m
ay a
lso
lead
to th
e te
mpo
rary
abs
ence
of s
ome
inve
rtebr
ate
spec
ies
that
mig
ht b
e ex
pect
ed to
occ
ur h
ere.
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 369
79
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
five
estu
arin
e as
soci
atio
n ca
tego
ries
in s
imila
r pro
porti
ons
(div
ersi
ty a
nd a
bund
ance
) to
that
und
er th
e re
fere
nce.
Num
eric
ally
, ass
embl
age
shou
ld
com
pris
e: E
stua
rine
spec
ies
(40 -
60%
), Es
tuar
ine
asso
ciat
ed m
arin
e sp
ecie
s (3
0-50
%),
Indi
geno
us
fresh
wat
er fi
sh (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
pop
ulat
ions
of a
t lea
st tw
o sp
ecie
s (e
.g. G
. aes
tuar
ia, &
Hyp
oram
phus
cap
ensi
s);
Cat
egor
y IIa
obl
igat
e de
pend
ents
sho
uld
be w
ell
repr
esen
ted
by a
t lea
st tw
o la
rge
expl
oite
d sp
ecie
s
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Ret
ain
spec
ies
richn
ess,
abu
ndan
ce a
nd d
ensi
ty o
f bi
rd c
ount
s of
resi
dent
and
mig
rant
wad
ers,
gul
ls,
tern
s, w
adin
g bi
rds
and
wat
erfo
wl w
ithin
15
% o
f pr
esen
t sta
te (2
006)
.
G14 Groot-Brak
III
K10A
G14-E17
Blinde Estuary
gxi1
9 B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e as
cl
ose
to p
rese
nt a
s po
ssib
le
(sm
all s
yste
m n
eeds
mos
t flo
ws)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
69.6 69.9 67.8 65.6 64.8 68.7 69.3 70.1 69.0 69.9 70.7 70.3 69.2
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
to e
xcee
d 10
0 μg
/ℓ (a
vera
ge)
DIP
D
IP n
ot to
exc
eed
20 μ
g/ℓ (
aver
age)
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
<20
(exp
ecte
d ra
nge
5-15
)
Syst
em
varia
bles
Dis
solv
ed
oxyg
en
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
>5
mg/
l
Turb
idity
Tu
rbid
ity n
ot to
exc
eed
10 N
TU in
low
flow
sea
son
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
370 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
80
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass;
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
; phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
: Ree
ds
& se
dges
: 0.0
4 ha
, San
d/m
ud b
anks
: 0.0
5 ha
, Ope
n w
ater
: 1.6
6 ha
; pre
vent
the
spre
ad o
f ree
ds in
to
open
wat
er; p
reve
nt a
n in
crea
se in
nut
rient
s an
d m
acro
alga
l blo
oms;
pre
vent
the
spre
ad o
f inv
asiv
e tre
es (e
.g. A
caci
a sp
p.) i
n th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
; es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y; p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd
1 in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, bu
t the
pro
porti
on o
f est
uary
dep
ende
nt m
arin
e sp
ecie
s (b
ased
on
abun
danc
e) s
houl
d no
t fal
l bel
ow
2%.
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st
data
and
or i
nitia
l sur
veys
) num
ber o
f spe
cies
an
d/or
bird
s co
unte
d fo
r thr
ee c
onse
cutiv
e su
mm
er
or w
inte
r cou
nts
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 371
81
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
G14 Groot-Brak
III
K10A
G14-E18
Tweekuilen Estuary
gxi2
0 D
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e as
cl
ose
to p
rese
nt a
s po
ssib
le
(sm
all s
yste
m n
eeds
mos
t flo
ws)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
to e
xcee
d 10
0 μg
/ℓ (a
vera
ge)
DIP
D
IP n
ot to
exc
eed
20 μ
g/ℓ (
aver
age)
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
<20
(exp
ecte
d ra
nge
5-15
)
Syst
em
varia
bles
D
isso
lved
ox
ygen
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>5 m
g/l
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
: Ree
ds
& se
dges
: 0.0
4 ha
, San
d/m
ud b
anks
: 0.0
5 ha
, Ope
n w
ater
: 1.6
6 ha
; pre
vent
the
spre
ad o
f ree
ds in
to
open
wat
er; p
reve
nt a
n in
crea
se in
nut
rient
s an
d m
acro
alga
l blo
oms;
pre
vent
the
spre
ad o
f inv
asiv
e tre
es (e
.g. A
caci
a sp
p.) i
n th
e rip
aria
n zo
ne
372 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
82
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
; es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y; p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd
1 in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, bu
t the
pro
porti
on o
f est
uary
dep
ende
nt m
arin
e sp
ecie
s (b
ased
on
abun
danc
e) s
houl
d no
t fal
l bel
ow
2%.
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st
data
and
or i
nitia
l sur
veys
) num
ber o
f spe
cies
an
d/or
bird
s co
unte
d fo
r thr
ee c
onse
cutiv
e su
mm
er
or w
inte
r cou
nts
G14 Groot-Brak
III
K10A
G14-E19
Gericke Estuary
gxi2
1 D
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e as
cl
ose
to p
rese
nt a
s po
ssib
le
(sm
all s
yste
m n
eeds
mos
t flo
ws)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3 72.3
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
to e
xcee
d 10
0 μg
/ℓ (a
vera
ge)
DIP
D
IP n
ot to
exc
eed
20 μ
g/ℓ (
aver
age)
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
<20
(exp
ecte
d ra
nge
5-15
)
Syst
em
varia
bles
D
isso
lved
ox
ygen
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>5 m
g/l
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 373
83
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
: Ree
ds
& se
dges
: 0.0
4 ha
, San
d/m
ud b
anks
: 0.0
5 ha
, Ope
n w
ater
: 1.6
6 ha
; pre
vent
the
spre
ad o
f ree
ds in
to
open
wat
er; p
reve
nt a
n in
crea
se in
nut
rient
s an
d m
acro
alga
l blo
oms;
pre
vent
the
spre
ad o
f inv
asiv
e tre
es (e
.g. A
caci
a sp
p.) i
n th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
; es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y; p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd
1 in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
a lly
, bu
t the
pro
porti
on o
f est
uary
dep
ende
nt m
arin
e sp
ecie
s (b
ased
on
abun
danc
e) s
houl
d no
t fal
l bel
ow
2%.
374 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
84
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st
data
and
or i
nitia
l sur
veys
) num
ber o
f spe
cies
an
d/or
bird
s co
unte
d fo
r thr
ee c
onse
cutiv
e su
mm
er
or w
inte
r cou
nts
G14 Groot-Brak
III
K10B
G14-E20
Hartenbos Estuary
gxi2
2 D
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n at
leas
t pre
sent
-da
y ba
se fl
ows
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR
(% N
at)
59.7 64.0 68.7 71.1 67.4 60.3 64.2 64.7 65.9 60.8 66.1 66.9 65.0
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<20
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
50 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
salin
ity a
long
the
estu
ary
shou
ld n
ot d
rop
mor
e th
an 5
bel
ow b
asel
ine
aver
age
Syst
em
varia
bles
Turb
idity
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
Turb
idity
<20
NTU
in lo
w fl
ow s
easo
n
Sech
ii de
pth
Sech
ii de
pth
shou
ld >
0.5
m in
the
fresh
er p
art o
f the
es
tuar
y D
isso
lved
ox
ygen
>5
mg/
l
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral b
athy
met
ry
and
sedi
men
t ch
arac
teris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om
esta
blis
hed
base
line
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 375
85
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent RU
Reso
urce
Na
me
Biop
hysi
cal
Node
Nam
e TE
C Co
mpo
nent
Su
b-co
mpo
nent
In
dica
tor
RQO
Nar
rativ
e RQ
O N
umer
ic
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
Phy
topl
ankt
on n
ot to
exc
eed
8 μg
/ℓ (m
edia
n), P
hyto
plan
kton
not
to e
xcee
d 20
μg/
ℓ an
d/or
cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (o
nce-
off);
Ben
thic
mic
roal
gae
not t
o ex
ceed
42
mg/
m2 (m
edia
n), D
inof
lage
llate
s, c
hlor
ophy
tes
and/
or c
yano
bact
eria
> 1
0% o
f rel
ativ
e ab
unda
nce
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
; pr
even
t the
spr
ead
of re
eds
into
ope
n w
ater
; pr
even
t an
incr
ease
in n
utrie
nts
and
mac
roal
gal
bloo
ms;
pre
vent
the
spre
ad o
f inv
asiv
e tre
es (e
.g.
Acac
ia s
pp.)
in th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0 -80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0 -20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; C
ateg
ory
II a
oblig
ate
depe
nden
ts s
houl
d be
wel
l rep
rese
nted
by
larg
e ex
ploi
ted
spec
ies
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st
data
and
or i
nitia
l sur
veys
) num
ber o
f spe
cies
an
d/or
bird
s co
unte
d fo
r thr
ee c
onse
cutiv
e su
mm
er
or w
inte
r cou
nts
376 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
86
Tabl
e 26
: Res
ourc
e Q
ualit
y O
bjec
tives
for E
STUA
RIES
in p
riorit
y Re
sour
ce U
nits
in th
e In
tegr
ated
Uni
t of A
naly
sis
G15
Coa
stal
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
G15 Coastal
II
K30A
G15-E21
Maalgate Estuary
gxi6
B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e (s
mal
l sy
stem
nee
ds m
ost f
low
s)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
80.3 79.1 74.5 73.4 71.3 80.5 82.1 82.7 85.9 84.3 83.7 81.9 79.3
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<10
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
20 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
salin
ity >
10
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
<10
NTU
in lo
w fl
ow s
easo
n D
isso
lved
ox
ygen
>5
mg/
l
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a M
icro
alga
e
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 377
87
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
; pre
vent
th
e sp
read
of r
eeds
into
ope
n w
ater
; pre
vent
an
incr
ease
in n
utrie
nts
and
mac
roal
gal b
loom
s; p
reve
nt
the
spre
ad o
f inv
asiv
e tre
es (e
.g. A
caci
a sp
p.) i
n th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd 1
in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, but
th
e pr
opor
tion
of e
stua
ry d
epen
dent
mar
ine
spec
ies
(bas
ed o
n ab
unda
nce)
sho
uld
not f
all b
elow
2%
.
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K30B
G15-E22
Gwaing Estuary
gxi7
B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e (s
mal
l sy
stem
nee
ds m
ost f
low
s)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
84.9 84.3 82.8 83.0 81.6 84.8 86.3 87.0 89.1 87.8 86.8 86.1 85.0
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<10
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
20 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
salin
ity >
10
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
<10
NTU
in lo
w fl
ow s
easo
n D
isso
lved
ox
ygen
>5
mg/
l
378 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
88
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity w
ith
mar
ine
envi
ronm
ent
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e to
mai
ntai
n na
tura
l bat
hym
etry
and
the
sedi
men
t cha
ract
eris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
; pre
vent
th
e sp
read
of r
eeds
into
ope
n w
ater
; pre
vent
an
incr
ease
in n
utrie
nts
and
mac
roal
gal b
loom
s; p
reve
nt
the
spre
ad o
f inv
asiv
e tre
es (e
.g. A
caci
a sp
p.) i
n th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd 1
in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, but
th
e pr
opor
tion
of e
stua
ry d
epen
dent
mar
ine
spec
ies
(bas
ed o
n ab
unda
nce)
sho
uld
not f
all b
elow
2%
.
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 379
89
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K30C
G15-E23
Kaaimans Estuary
gxi8
B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e (s
mal
l sy
stem
nee
ds m
ost f
low
s)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
70.9 74.5 74.7 70.7 70.4 72.8 72.3 73.7 69.5 67.3 74.1 73.8 72.5
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Entir
e es
tuar
y an
d riv
er in
flow
: DIN
<10
0µg/
ℓ
DIP
En
tire
estu
ary
and
river
inflo
w: D
IP <
20 µ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
salin
ity >
10
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
<10
NTU
in lo
w fl
ow s
easo
n D
isso
lved
ox
ygen
>5
mg/
l
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity w
ith
mar
ine
envi
ronm
ent a
t a
leve
l tha
t ens
ures
wat
er
qual
ity a
nd h
abita
t rem
ains
su
itabl
e fo
r bio
ta ty
pica
lly
foun
d in
the
estu
ary
Estu
ary
mou
th p
erm
anen
tly o
pen
Tida
l var
iatio
n Av
erag
e tid
al a
mpl
itude
nea
r the
mou
th d
urin
g lo
w
flow
s (s
umm
er) m
ust n
ot c
hang
e by
>10
% fr
om
esta
blis
hed
base
line.
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
380 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
90
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
; pre
vent
th
e sp
read
of r
eeds
into
ope
n w
ater
; pre
vent
an
incr
ease
in n
utrie
nts
and
mac
roal
gal b
loom
s; p
reve
nt
the
spre
ad o
f inv
asiv
e tre
es (e
.g. A
caci
a sp
p.) i
n th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd 1
in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
a lly
, but
th
e pr
opor
tion
of e
stua
ry d
epen
dent
mar
ine
spec
ies
(bas
ed o
n ab
unda
nce)
sho
uld
not f
all b
elow
2%
.
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K30D
G15-E24 Wilderness
Estuary (Touw)
gxi9
B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n a
flow
regi
me
to
mai
ntai
n w
ater
qua
lity
and
the
requ
ired
habi
tat f
or
bird
s, fi
sh, m
acro
phye
s
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 381
91
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
and
mac
roph
ytes
. Ab
stra
ctio
n sh
ould
not
re
sult
in fl
ow d
iffer
ing
mor
e th
an 5
% fr
om th
e pr
esen
t da
y (2
017)
kee
ping
in m
ind
the
perc
enta
ge n
MAR
to
be m
aint
aine
d in
the
syst
em (8
8.6%
) to
keep
it
in it
s ec
olog
ical
cat
egor
y.
MM
R/M
AR (%
N
at)
89.7 90.9 87.2 84.5 83.5 85.5 86.9 90.8 88.7 88.1 93.1 92.8 88.6
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Riv
er in
flow
, NO
x-N
not
to e
xcee
d 50
μg/
ℓ ove
r tw
o co
nsec
utiv
e m
onth
s, N
H3-
N n
ot to
exc
eed
10 μ
g/ℓ
over
two
cons
ecut
ive
mon
ths;
Est
uary
: Ave
rage
N
Ox-
N <
50 μ
g/ℓ,
no s
ingl
e m
easu
re >
100
μg/ℓ,
av
erag
e N
H3 -
N <
10 μ
g/ℓ,
no s
ingl
e m
easu
re >
100
μg/ℓ;
Lak
es: a
vera
ge N
Ox-
N <
50 μ
g/ℓ,
no s
ingl
e m
easu
re >
100
μg/ℓ,
ave
rage
NH
3-N
<20
μg/
ℓ
DIP
Riv
er in
flow
, PO
4-P n
ot to
exc
eed
10 μ
g/ℓ o
ver t
wo
cons
ecut
ive
mon
ths;
Est
uary
: ave
rage
PO
4-P <
10
μg/ℓ,
no
sing
le s
ampl
e >5
0 μg
/ℓ ; L
akes
: ave
rage
PO
4-P <
20 μ
g/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Estu
ary
in th
e cl
osed
sta
te: a
vera
ge s
alin
ity in
Zon
e A
< 12
, ave
rage
sal
inity
in Z
one
B: <
10,
ave
rage
sa
linity
in Z
one
C <
5; L
akes
ave
rage
sal
inity
+2
from
bas
elin
e (2
013)
and
var
iabi
lity
shou
ld n
ot
incr
ease
as
belo
w: S
erpe
ntin
e: 1
2 ±
10, E
iland
vlei
: 8
± 5
, Lan
gvle
i: 10
±4
, Ron
devl
ei: 1
1 ±6
Syst
em
varia
bles
Turb
idity
Syst
em v
aria
bles
not
to
exce
ed T
PCs
for b
iota
Aver
age
<5 N
TU (l
ow fl
ow) t
hrou
ghou
t D
isso
lved
ox
ygen
>5
mg/
l thr
ough
out
pH
Riv
er in
flow
: 6.0
< p
H <
7.0
(Tou
w),
7.0
< pH
< 8
.0
(Dui
we)
, Est
uary
: 7.0
< p
H >
8.5
, Lak
es: 7
.5 <
pH
<
9
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
382 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
92
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
caus
ed b
y an
thro
poge
nic
eutro
phic
atio
n
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Hav
e no
furth
er lo
ss to
ex
tent
, dis
tribu
tion
and
richn
ess
of m
acro
phyt
e gr
oups
, lim
it co
loni
satio
n/sp
read
of t
he
EFZ
by a
lien
spec
ies
Hav
e no
furth
er lo
ss to
the
pres
ent a
rea
(201
4)
cove
red
by th
e m
acro
phyt
e ha
bita
ts; h
ave
no fu
rther
lo
ss to
the
dist
ribut
ion
of s
ensi
tive
mac
roph
yte
habi
tats
(e.g
. sal
t mar
sh, s
ubm
erge
d m
acro
phyt
es);
cont
rol/e
limin
ate
inva
sive
pla
nts;
pre
vent
the
spre
ad
of re
eds
into
ope
n w
ater
that
resu
lts in
loss
of
sand
bank
are
as a
nd h
as a
neg
ativ
e im
pact
on
biot
a an
d hy
drol
ogic
al p
roce
sses
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Mai
ntai
n pr
esen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi
on s
and
bank
s in
low
er T
ouw
Est
uary
; mai
ntai
n ric
h po
pula
tions
of t
he b
enth
ic a
mph
ipod
Gra
ndid
iere
lla
ligno
rum
thro
ugho
ut th
e la
kes
and
estu
ary
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0 -80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0-20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
(G. a
estu
aria
, H
ypor
amph
us c
apen
sis,
Om
obra
nchu
s w
oodi
i);
Cat
egor
y IIa
obl
igat
e de
pend
ents
sho
uld
be w
ell
repr
esen
ted
by la
rge
expl
oite
d sp
ecie
s ( A
.japo
nicu
s,
L. li
thog
nath
us, P
. com
mer
soni
i, Li
chia
am
ia);
REI
sp
ecie
s do
min
ated
by
both
Myx
us c
apen
sis
and
G.
aest
uaria
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 383
93
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
The
estu
arin
e la
ke s
yste
m s
houl
d co
ntai
n a
dive
rse
avifa
unal
com
mun
ity th
at in
clud
es re
pres
enta
tives
of
all t
he o
rigin
al g
roup
s, a
nd th
at s
usta
ins
the
popu
latio
ns th
at m
eet R
AMSA
R re
quire
men
ts;
num
bers
of w
ater
bird
s on
the
entir
e sy
stem
, oth
er
than
thos
e th
at h
ave
or a
re in
crea
sing
regi
onal
ly
such
as
Egyp
tian
Goo
se, s
houl
d no
t dro
p be
low
40
spec
ies
or b
elow
300
0 bi
rds
for t
hree
con
secu
tive
coun
ts
G15 Coastal
II
K40D
G15-E25
Swartvlei Estuary
gxi1
0 B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n a
flow
regi
me
to
crea
te th
e re
quire
d ha
bita
t fo
r bird
s, fi
sh,
mac
roph
ytes
, mic
roal
gae
and
wat
er q
ualit
y
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
89.5 87.6 80.9 78.7 81.3 86.8 86.8 88.5 85.9 88.4 90.9 90.2 86.6
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
Riv
er in
flow
, NO
x-N
not
to e
xcee
d 50
μg/
ℓ ove
r tw
o co
nsec
utiv
e m
onth
s, N
H3-
N n
ot to
exc
eed
10 μ
g/ℓ
over
two
cons
ecut
ive
mon
ths;
Est
uary
: Ave
rage
N
Ox-
N <
50 μ
g/ℓ,
no s
ingl
e m
easu
re >
100
μg/ℓ,
av
erag
e N
H3 -
N <
10 μ
g/ℓ,
no s
ingl
e m
easu
re >
100
μg/ℓ;
Lak
e: a
vera
ge N
Ox-
N <
50 μ
g/ℓ,
no s
ingl
e m
easu
re >
100
μg/ℓ,
ave
rage
NH
3-N
<20
μg/
ℓ
DIP
Riv
er in
flow
, PO
4-P
not t
o ex
ceed
10
μg/ℓ
over
two
cons
ecut
ive
mon
ths;
Est
uary
: ave
rage
PO
4-P
<10
μg/ℓ,
no
sing
le s
ampl
e >5
0 μg
/ℓ; L
akes
: ave
rage
PO
4-P
<20
μg/ℓ
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Estu
ary
in th
e cl
osed
sta
te: a
vera
ge s
alin
ity <
12;
Lake
ave
rage
sal
inity
+2
from
bas
elin
e (2
013)
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es
(tem
pera
ture
, pH
, tur
bidi
ty,
diss
olve
d ox
ygen
, su
spen
ded
solid
s an
d tu
rbid
ity) n
ot to
exc
eed
TPC
s fo
r bio
ta
Aver
age
<5 N
TU (l
ow fl
ow) t
hrou
ghou
t D
isso
lved
ox
ygen
>5
mg/
l thr
ough
out
pH
Riv
er in
flow
: 6.0
< p
H <
7.0
, Est
uary
: 6.0
< p
H <
8.5
, La
ke: 7
.0 <
pH
< 8
.5
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90t
h pe
rcen
tile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
384 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
CONTINUES ON PAGE 386 - PART 4
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R E P U B L I C O F S O U T H A F R I CAR E P U B L I E K VA N S U I D A F R I K A
Vol. 641 23November November 2018 No. 42053
9 7 7 1 6 8 2 5 8 4 0 0 3
ISSN 1682-584342053
PART 4 OF 5
386 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
94
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20
μg/ℓ
and/
or c
ell d
ensi
ty n
ot to
exc
eed
10 0
00 c
ells
/ml
(onc
e-of
f); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (m
edia
n); p
reve
nt fo
rmat
ion
of p
hyto
plan
kton
bl
oom
s
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
No
furth
er lo
ss to
ext
ent,
dist
ribut
ion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
No
furth
er lo
ss to
the
pres
ent a
rea
(201
4) c
over
ed
by th
e m
acro
phyt
e ha
bita
ts; n
o fu
rther
loss
to th
e di
strib
utio
n of
sen
sitiv
e m
acro
phyt
e ha
bita
ts (e
.g.
salt
mar
sh, s
ubm
erge
d m
acro
phyt
es);
cont
rol/e
limin
ate
inva
sive
pla
nts;
pre
vent
the
spre
ad
of re
eds
into
ope
n w
ater
that
resu
lts in
loss
of
sand
bank
are
as a
nd h
as a
neg
ativ
e im
pact
on
biot
a an
d hy
drol
ogic
al p
roce
sses
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Mai
ntai
n pr
esen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi
on s
and
bank
s in
low
er T
ouw
Est
uary
; mai
ntai
n ric
h po
pula
tions
of t
he b
enth
ic a
mph
ipod
Gra
ndid
iere
lla
ligno
rum
thro
ugho
ut th
e la
kes
and
estu
ary
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 387
95
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0-80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0-20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
(G. a
estu
aria
, H
ypor
amph
us c
apen
sis,
Om
obra
nchu
s w
oodi
i);
Cat
egor
y IIa
obl
igat
e de
pend
ents
sho
uld
be w
ell
repr
esen
ted
by la
rge
expl
oite
d sp
ecie
s (A
.japo
nicu
s,
L. li
thog
nath
us, P
. com
mer
soni
i, Li
chia
am
ia);
REI
sp
ecie
s do
min
ated
by
both
Myx
us c
apen
sis
and
G.
aest
uaria
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
The
estu
arin
e la
ke s
yste
m s
houl
d co
ntai
n a
dive
rse
avifa
unal
com
mun
ity th
at in
clud
es re
pres
enta
tives
of
all t
he o
rigin
al g
roup
s, a
nd th
at s
usta
ins
the
popu
latio
ns fo
r whi
ch th
e sy
stem
has
acq
uire
d R
AMSA
R s
tatu
s; n
umbe
rs o
f wat
erbi
rds
on th
e en
tire
syst
em, o
ther
than
thos
e th
at h
ave
or a
re
incr
easi
ng re
gion
ally
suc
h as
Egy
ptia
n G
oose
, sh
ould
not
dro
p be
low
40
spec
ies
or b
elow
150
0 bi
rds
for t
hree
con
secu
tive
coun
ts
G15 Coastal
II
K40E
G15-E26
Goukamma Estuary
gxi1
1 B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e M
onth
s
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
87.5 88.8 87.5 85.7 85.5 87.1 86.9 88.2 87.2 86.5 88.5 88.3 87.5
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
>10
0 µg
/L o
nce-
off.
DIP
D
IP n
ot >
20
µg/L
onc
e-of
f.
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Syst
em
Turb
idity
Sy
stem
var
iabl
es n
ot to
Tu
rbid
ity >
10 N
TU in
low
flow
388 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
96
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
varia
bles
D
isso
lved
ox
ygen
ex
ceed
TPC
s fo
r bio
ta
>5 m
g/L
in e
stua
ry.
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity w
ith
mar
ine
envi
ronm
ent a
t a
leve
l tha
t ens
ures
wat
er
qual
ity a
nd h
abita
t rem
ains
su
itabl
e fo
r bio
ta ty
pica
lly
foun
d in
the
estu
ary
Estu
ary
mou
th p
erm
anen
tly o
pen
Tida
l var
iatio
n Av
erag
e tid
al a
mpl
itude
nea
r the
mou
th d
urin
g lo
w
flow
s (s
umm
er) m
ust n
ot c
hang
e by
>10
% fr
om
esta
blis
hed
base
line.
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot >
1.0
µg/
L (m
edia
n).,
bent
hic
mic
roal
gae
not >
11
mg/
m2 (m
edia
n);
Phyt
opla
nkto
n no
t > 2
0 µg
/L a
nd/o
r cel
l den
sity
not
>1
0 00
0 ce
lls/m
l (on
ce-o
ff); P
reve
nt fo
rmat
ion
of
phyt
opla
nkto
n bl
oom
s
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
; pre
vent
th
e sp
read
of i
nvas
ive
trees
(e.g
. Aca
cia
spp.
) in
the
ripar
ian
zone
.
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 389
97
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0 -80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0-20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; C
ateg
ory
IIa
oblig
ate
depe
nden
ts s
houl
d be
wel
l rep
rese
nted
by
larg
e ex
ploi
ted
spec
ies
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K50B
G15-E27
Knysna Estuary
gxi1
2 B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e as
cl
ose
to n
atur
al a
s po
ssib
le M
onth
s
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
87.5 87.6 82.7 83.9 86.1 82.5 84.7 87.1 87.5 86.8 88.3 90.5 86.8
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
>10
0 µg
/L o
nce-
off.
DIP
D
IP n
ot >
20
µg/L
onc
e-of
f.
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
Turb
idity
>10
NTU
in lo
w fl
ow
Dis
solv
ed
oxyg
en
>5 m
g/L
in e
stua
ry.
Path
ogen
s En
tero
cocc
i C
once
ntra
tions
of
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
390 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
98
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Esch
eric
hia
coli
wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity w
ith
mar
ine
envi
ronm
ent a
t a
leve
l tha
t ens
ures
wat
er
qual
ity a
nd h
abita
t rem
ains
su
itabl
e fo
r bio
ta ty
pica
lly
foun
d in
the
estu
ary
Estu
ary
mou
th p
erm
anen
tly o
pen
Tida
l var
iatio
n Av
erag
e tid
al a
mpl
itude
nea
r the
mou
th d
urin
g lo
w
flow
s (s
umm
er) m
ust n
ot c
hang
e by
>10
% fr
om
esta
blis
hed
base
line.
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
No
furth
er lo
ss to
ext
ent,
dist
ribut
ion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
No
furth
er lo
ss to
the
pres
ent a
rea
(201
4) c
over
ed
by th
e m
acro
phyt
e ha
bita
ts; n
o fu
rther
loss
to th
e di
strib
utio
n of
sen
sitiv
e m
acro
phyt
e ha
bita
ts (e
.g.
salt
mar
sh, s
ubm
erge
d m
acro
phyt
es);
cont
rol/e
limin
ate
inva
sive
pla
nts
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Mai
ntai
n ric
h po
pula
tions
of t
he m
udpr
awn
Upo
gebi
a af
rican
a on
mud
bank
s in
the
mid
dle
estu
ary
(Zon
es
A an
d B)
; mud
praw
n de
nsity
sho
uld
not d
evia
te fr
om
aver
age
base
line
leve
ls b
y m
ore
than
25%
in e
ach
seas
on; m
aint
ain
rich
inve
rtebr
ate
com
mun
ities
as
soci
ated
with
the
REI
zon
e in
the
uppe
r est
uary
(z
oopl
ankt
on a
nd b
enth
os);
the
dom
inan
t spe
cies
in
the
zone
(zoo
plan
kton
and
ben
thos
) sho
uld
not
devi
ate
from
ave
rage
bas
elin
e le
vels
by
mor
e th
an
40%
in e
ach
seas
on
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 391
99
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0-80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0-20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; C
ateg
ory
IIa
oblig
ate
depe
nden
ts s
houl
d be
wel
l rep
rese
nted
by
larg
e ex
ploi
ted
spec
ies ;
REI
spe
cies
dom
inat
ed b
y bo
th M
yxus
cap
ensi
s an
d G
. aes
tuar
ia
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Estu
ary
shou
ld c
onta
in a
div
erse
avi
faun
al
com
mun
ity th
at in
clud
es re
pres
enta
tives
of a
ll th
e or
igin
al g
roup
s. S
altm
arsh
/wet
land
s in
the
flood
plai
n sh
ould
be
rich
in b
irdlif
e. In
terti
dal a
reas
sho
uld
have
a
good
den
sity
and
div
ersi
ty o
f bot
h la
rger
and
sm
alle
r wad
ers;
num
bers
of w
ater
bird
s on
the
entir
e sy
stem
sho
uld
not d
rop
belo
w 3
5 sp
ecie
s or
bel
ow
2000
bird
s fo
r thr
ee c
onse
cutiv
e co
unts
G15 Coastal
II
K60G
G15-E28
Noetsie Estuary
gxi1
3 B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e (s
mal
l sy
stem
nee
ds m
ost f
low
s)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
93.5 93.4 90.7 87.1 85.5 89.8 92.1 94.0 93.0 92.8 94.3 94.3 92.5
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
>10
0 µg
/L o
nce-
off.
DIP
D
IP n
ot >
20
µg/L
onc
e-of
f.
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
10 <
Sal
inity
<40
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>10
NTU
in lo
w fl
ow
Dis
solv
ed
oxyg
en
>5 m
g/L
in e
stua
ry.
Path
ogen
s En
tero
cocc
i C
once
ntra
tions
of
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
392 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
100
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Esch
eric
hia
coli
wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot >
1.0
µg/
L (m
edia
n).,
bent
hic
mic
roal
gae
not >
11
mg/
m2 (m
edia
n);
Phyt
opla
nkto
n no
t > 2
0 µg
/L a
nd/o
r cel
l den
sity
not
>1
0 00
0 ce
lls/m
l (on
ce-o
ff); P
reve
nt fo
rmat
ion
of
phyt
opla
nkto
n bl
oom
s
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
; pre
vent
an
incr
ease
in n
utrie
nt in
put l
eadi
ng to
mac
roal
gal
bloo
ms;
con
trol t
he s
prea
d of
inva
sive
pla
nts
in th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 393
101
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0-80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0-20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; Cat
egor
y IIa
ob
ligat
e de
pend
ents
sho
uld
be w
ell r
epre
sent
ed b
y la
rge
expl
oite
d sp
ecie
s; R
EI s
peci
es d
omin
ated
by
both
Myx
us c
apen
sis
and
G. a
estu
aria
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K60G
G15-E29
Piesang Estuary
gxi1
4 C
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n at
leas
t pre
sent
-da
y ba
se fl
ows
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
71.4 77.2 69.5 68.8 63.6 69.2 70.9 81.5 68.1 66.8 74.7 86.1 73.8
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
>10
0 µg
/L o
nce-
off.
DIP
D
IP n
ot >
20
µg/L
onc
e-of
f.
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
5 <
Salin
ity <
40
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>10
NTU
in lo
w fl
ow
Dis
solv
ed
oxyg
en
>5 m
g/L
in e
stua
ry.
Path
ogen
s En
tero
cocc
i C
once
ntra
tions
of
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
394 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
102
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Esch
eric
hia
coli
wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
(ree
ds
and
sedg
es c
urre
ntly
cov
er 3
.14
ha, s
ubm
erge
d m
acro
phyt
es a
nd s
alt m
arsh
pre
sent
); pr
even
t the
sp
read
of r
eeds
into
ope
n w
ater
; pre
vent
an
incr
ease
in
nut
rient
s an
d m
acro
alga
l blo
oms;
pre
vent
the
spre
ad o
f inv
asiv
e tre
es (e
.g. A
caci
a sp
p.) i
n th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 395
103
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0-80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0-20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; C
ateg
ory
IIa
oblig
ate
depe
nden
ts s
houl
d be
wel
l rep
rese
nted
by
larg
e ex
ploi
ted
spec
ies
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K60G
G15-E30
Keurbooms Estuary
gxi1
5 A
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e as
cl
ose
to n
atur
al a
s po
ssib
le M
onth
s
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
90.6 90.5 88.8 85.3 83.0 85.5 89.3 92.0 92.3 91.8 92.8 91.8 90.0
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
>10
0 µg
/L o
nce-
off.
DIP
D
IP n
ot >
20 µ
g/L
once
-off.
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
salin
ity >
10 a
t the
top
of th
e es
tuar
y in
the
Keur
boom
s an
d/or
Bito
u Ar
m, a
vera
ge s
alin
ity >
20
alon
g th
e le
ngth
of t
he s
yste
m
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>10
NTU
in lo
w fl
ow
Dis
solv
ed
oxyg
en
>5 m
g/L
in e
stua
ry.
Path
ogen
s En
tero
cocc
i C
once
ntra
tions
of
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
396 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
104
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Esch
eric
hia
coli
wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Estu
ary
mou
th p
erm
anen
tly o
pen
Tida
l var
iatio
n
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Aver
age
tidal
am
plitu
de n
ear t
he m
outh
dur
ing
low
flo
ws
(sum
mer
) mus
t not
cha
nge
by >
10%
from
es
tabl
ishe
d ba
selin
e.
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e to
mai
ntai
n na
tura
l bat
hym
etry
and
the
sedi
men
t cha
ract
eris
tics
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n th
e di
strib
utio
n of
sen
sitiv
e m
acro
phyt
e ha
bita
ts (e
.g. s
alt m
arsh
, sub
mer
ged
mac
roph
ytes
, re
eds
and
sedg
es) (
of s
peci
al im
porta
nce
are
the
subm
erge
d m
acro
phyt
es in
the
Bito
u Ar
ms
as
habi
tat f
or th
e en
dang
ered
sea
hors
es H
. cap
ensi
s);
reha
bilit
ate
the
Bito
u w
etla
nds
by re
mov
ing
wei
rs,
berm
s, o
ld b
ridge
s; li
mit
the
spre
ad o
f inv
asiv
e pl
ants
; mai
ntai
n th
e in
tegr
ity o
f the
ripa
rian
zone
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Mai
ntai
n hi
gh b
iom
ass
and
dive
rsity
of b
enth
ic
inve
rtebr
ates
in th
e la
goon
are
a in
the
low
er e
stua
ry;
mai
ntai
n ric
h in
verte
brat
e co
mm
uniti
es a
ssoc
iate
d w
ith th
e R
EI z
one
in th
e up
per e
stua
ry (z
oopl
ankt
on
and
bent
hos)
.
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 397
105
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0-80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0-20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; C
ateg
ory
IIa
oblig
ate
depe
nden
ts s
houl
d be
wel
l rep
rese
nted
by
larg
e ex
ploi
ted
spec
ies
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K70A
G15-E31
Matjies Estuary
gxi1
6 C
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e (s
mal
l sy
stem
nee
ds m
ost f
low
s)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
73.9 73.8 69.1 68.0 65.0 67.9 67.9 68.4 65.8 66.8 71.6 74.1 70.5
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
>10
0 µg
/L o
nce-
off.
DIP
D
IP n
ot >
20 µ
g/L
once
-off.
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
Salin
ity >
20
for m
ore
than
20%
of t
he ti
me
(indi
cativ
e of
flow
redu
ctio
n), a
vera
ge S
alin
ity <
5 fo
r m
ore
than
20%
of t
he ti
me
(indi
cativ
e of
ext
ende
d cl
osur
e).
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>10
NTU
in lo
w fl
ow
Dis
solv
ed
oxyg
en
>5 m
g/L
in e
stua
ry.
Path
ogen
s En
tero
cocc
i C
once
ntra
tions
of
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
398 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
106
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Esch
eric
hia
coli
wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
, pre
vent
an
incr
ease
in n
utrie
nt in
put l
eadi
ng to
mac
roal
gal
bloo
ms,
con
trol t
he s
prea
d of
inva
sive
pla
nts
in th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd 1
in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
a lly
, but
th
e pr
opor
tion
of e
stua
ry d
epen
dent
mar
ine
spec
ies
(bas
ed o
n ab
unda
nce)
sho
uld
not f
all b
elow
2%
.
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 399
107
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K70A
G15-E32
Sout (Oos) Estuary
gxi1
7 A
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e (s
mal
l sy
stem
nee
ds m
ost f
low
s)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
86.7 86.8 86.0 83.2 81.7 83.1 84.2 86.1 85.6 84.6 85.8 86.8 85.6
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
>10
0 µg
/L o
nce-
off.
DIP
D
IP n
ot >
20 µ
g/L
once
-off.
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
salin
ity <
10 a
t the
hea
d of
the
estu
ary
(exp
ecte
d av
erag
e ra
nge
5 - 1
0 fo
r mos
t of t
he
syst
em)
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>10
NTU
in lo
w fl
ow
Dis
solv
ed
oxyg
en
>5 m
g/L
in e
stua
ry.
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Mou
th m
ust r
emai
n pe
rman
ently
ope
n
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
400 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
108
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
, pre
vent
an
incr
ease
in n
utrie
nt in
put l
eadi
ng to
mac
roal
gal
bloo
ms,
con
trol t
he s
prea
d of
inva
sive
pla
nts
in th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd 1
in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, but
th
e pr
opor
tion
of e
stua
ry d
epen
dent
mar
ine
spec
ies
(bas
ed o
n ab
unda
nce)
sho
uld
not f
all b
elow
2%
.
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K70A
G15-E33
Groot (Wes) Estuary
gxi2
3 B
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e (s
mal
l sy
stem
nee
ds m
ost f
low
s)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
87.9 88.0 87.2 84.3 82.7 84.1 85.3 87.3 86.7 85.7 86.9 87.9 86.7
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
>10
0 µg
/L o
nce-
off.
DIP
D
IP n
ot >
20 µ
g/L
once
-off.
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 401
109
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
salin
ity <
10 a
t the
hea
d of
the
estu
ary
(exp
ecte
d av
erag
e ra
nge
5 - 1
0 fo
r mos
t of t
he
syst
em)
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>10
NTU
in lo
w fl
ow
Dis
solv
ed
oxyg
en
>5 m
g/L
in e
stua
ry.
Path
ogen
s
Ente
roco
cci
Con
cent
ratio
ns o
f w
ater
born
e pa
thog
ens
shou
ld b
e m
aint
aine
d in
an
Acce
ptab
le c
ateg
ory
for f
ull
cont
act r
ecre
atio
n
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
Esch
eric
hia
coli
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
Mai
ntai
n co
nnec
tivity
with
m
arin
e en
viro
nmen
t at a
le
vel t
hat e
nsur
es w
ater
qu
ality
and
hab
itat r
emai
ns
suita
ble
for b
iota
typi
cally
fo
und
in th
e es
tuar
y
Clo
sed
mou
th s
tate
sho
uld
not i
ncre
ase
by >
10%
fro
m e
stab
lishe
d ba
selin
e
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
3.5
μg/ℓ
(med
ian)
, phy
topl
ankt
on n
ot to
exc
eed
20 μ
g/ℓ a
nd/o
r cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (on
ce-o
ff); b
enth
ic m
icro
alga
e no
t to
exce
ed 2
3 m
g/m
2 (med
ian)
; pre
vent
form
atio
n of
ph
ytop
lank
ton
bloo
ms
Mac
roph
ytes
Exte
nt,
dist
ribut
ion
and
richn
ess
of
mac
roph
ytes
Mai
ntai
n ex
tent
, dis
tribu
tion
and
richn
ess
of
mac
roph
yte
grou
ps, l
imit
colo
nisa
tion/
spre
ad o
f the
EF
Z by
alie
n sp
ecie
s
Mai
ntai
n di
strib
utio
n of
mac
roph
yte
habi
tats
, pre
vent
an
incr
ease
in n
utrie
nt in
put l
eadi
ng to
mac
roal
gal
bloo
ms,
con
trol t
he s
prea
d of
inva
sive
pla
nts
in th
e rip
aria
n zo
ne
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
402 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
110
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Fish
ass
embl
age
shou
ld c
ompr
ise
the
5 es
tuar
ine
asso
ciat
ion
cate
gorie
s in
sim
ilar p
ropo
rtion
s (d
iver
sity
and
abu
ndan
ce) t
o th
at u
nder
the
refe
renc
e (s
ee 2
015
EWR
repo
rt); n
umer
ical
ly
asse
mbl
age
shou
ld c
ompr
ise:
Ia e
stua
rine
resi
dent
s (5
0 -80
% o
f tot
al a
bund
ance
), Ib
mar
ine
and
estu
arin
e br
eede
rs (1
0-20
%),
IIa o
blig
ate
estu
arin
e-de
pend
ent (
10-2
0%),
IIb e
stua
rine
asso
ciat
ed
spec
ies
(5-1
5%),
IIc m
arin
e op
portu
nist
s (2
0-80
%),
III m
arin
e va
gran
ts (n
ot m
ore
than
5%
), IV
in
dige
nous
fish
(1-5
%),
V ca
tadr
omou
s sp
ecie
s (1
-5%
); C
ateg
ory
Ia s
peci
es s
houl
d co
ntai
n vi
able
po
pula
tions
of a
t lea
st 4
spe
cies
; C
ateg
ory
IIa
oblig
ate
depe
nden
ts s
houl
d be
wel
l rep
rese
nted
by
larg
e ex
ploi
ted
spec
ies ;
REI
spe
cies
dom
inat
ed b
y bo
th M
yxus
cap
ensi
s an
d G
. aes
tuar
ia
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
G15 Coastal
II
K70B
G15-E34
Bloukrans Estuary
gxi1
8 A
Qua
ntity
Fl
ow
MM
R/M
AR
(% N
at)
Mai
ntai
n flo
w re
gim
e (s
mal
l sy
stem
nee
ds m
ost f
low
s)
Mon
ths
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Annual
MM
R/M
AR (%
N
at)
98.7 99.0 98.3 96.7 96.8 97.1 97.2 98.1 97.6 97.7 98.2 98.9 98.0
Qua
lity
Nut
rient
s
DIN
In
orga
nic
nutri
ent
conc
entra
tions
not
to
exce
ed T
PCs
for
mac
roph
ytes
and
m
icro
alga
e
DIN
not
>10
0 µg
/L o
nce-
off.
DIP
D
IP n
ot >
20 µ
g/L
once
-off.
Salin
ity
Salin
ity
Salin
ity d
istri
butio
n no
t to
exce
ed T
PCs
for f
ish,
in
verte
brat
es, m
acro
phyt
es
and
mic
roal
gae
Aver
age
salin
ity <
10 a
t the
hea
d of
the
estu
ary
(exp
ecte
d av
erag
e ra
nge
5 - 1
0 fo
r mos
t of t
he
syst
em)
Syst
em
varia
bles
Turb
idity
Sy
stem
var
iabl
es n
ot to
ex
ceed
TPC
s fo
r bio
ta
>10
NTU
in lo
w fl
ow
Dis
solv
ed
oxyg
en
>5 m
g/L
in e
stua
ry.
Path
ogen
s En
tero
cocc
i C
once
ntra
tions
of
≤185
Ent
eroc
occi
/100
ml)
(90th
per
cent
ile)
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 403
111
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU Re
sour
ce
Nam
e Bi
ophy
sica
l No
de N
ame
TEC
Com
pone
nt
Sub-
com
pone
nt
Indi
cato
r RQ
O N
arra
tive
RQO
Num
eric
Esch
eric
hia
coli
wat
erbo
rne
path
ogen
s sh
ould
be
mai
ntai
ned
in a
n Ac
cept
able
cat
egor
y fo
r ful
l co
ntac
t rec
reat
ion
≤500
E. c
oli/1
00 m
l (90
th p
erce
ntile
)
Hab
itat
Hyd
rody
nam
ics
Mou
th s
tate
M
aint
ain
conn
ectiv
ity w
ith
mar
ine
envi
ronm
ent a
t a
leve
l tha
t ens
ures
wat
er
qual
ity a
nd h
abita
t rem
ains
su
itabl
e fo
r bio
ta ty
pica
lly
foun
d in
the
estu
ary
Estu
ary
mou
th p
erm
anen
tly o
pen
Tida
l var
iatio
n Av
erag
e tid
al a
mpl
itude
nea
r the
mou
th d
urin
g lo
w
flow
s (s
umm
er) m
ust n
ot c
hang
e by
>10
% fr
om
esta
blis
hed
base
line.
Sedi
men
t
Sedi
men
t ch
arac
teris
tics,
C
hann
el
shap
e/si
ze
Floo
d re
gim
e is
suf
ficie
nt to
m
aint
ain
natu
ral
bath
ymet
ry a
nd s
edim
ent
char
acte
ristic
s
Cha
nnel
sha
pe/s
ize,
sed
imen
t gra
in s
ize
and
orga
nic
mat
ter m
ust n
ot c
hang
e by
>30
% fr
om e
stab
lishe
d ba
selin
e
Biot
a
Mic
roal
gae
Biom
ass
and
com
mun
ity
com
posi
tion
of
phyt
opla
nkto
n an
d be
nthi
c m
icro
alga
e co
mm
unity
Mai
ntai
n th
e co
mpo
sitio
n an
d ric
hnes
s of
ph
ytop
lank
ton
and
bent
hic
mic
roal
gae
grou
ps a
nd
med
ium
-low
bio
mas
s
Mai
ntai
n lo
w/m
edia
n ph
ytop
lank
ton/
bent
hic
mic
roal
gae
biom
ass:
phy
topl
ankt
on n
ot to
exc
eed
1 μg
/ℓ (m
edia
n), p
hyto
plan
kton
not
to e
xcee
d 20
μg/
ℓ an
d/or
cel
l den
sity
not
to e
xcee
d 10
000
cel
ls/m
l (o
nce-
off);
ben
thic
mic
roal
gae
not t
o ex
ceed
11
mg/
m2 (m
edia
n); p
reve
nt fo
rmat
ion
of p
hyto
plan
kton
bl
oom
s
Inve
rtebr
ates
Mac
rofa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
ben
thic
m
acro
faun
a an
d zo
opla
nkto
n
Esta
blis
h pr
esen
ce/a
bsen
ce o
f san
d pr
awn
Cal
lichi
rus
krau
ssi o
n sa
nd b
anks
in lo
wer
est
uary
, es
tabl
ish
pres
ence
/abs
ence
of t
he c
opep
od
Pseu
dodi
apto
mus
hes
sei o
r est
uarin
e co
ngen
eric
in
the
zoop
lank
ton
of th
e es
tuar
y, p
opul
atio
ns o
f the
se
spec
ies
shou
ld n
ot d
evia
te fr
om a
vera
ge b
asel
ines
(a
s de
term
ined
in fi
rst t
hree
vis
its) b
y m
ore
30%
Fish
Fish
co
mm
unity
co
mpo
sitio
n,
abun
danc
e an
d ric
hnes
s
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt g
roup
s of
fish
, pr
even
t co
loni
satio
n/in
crea
se o
f al
ien
spec
ies
Mai
ntai
n fis
h as
sem
blag
e th
at in
clud
es a
t lea
st 2
es
tuar
ine
bree
ding
spe
cies
(Cat
egor
y I),
3 e
stua
ry
depe
nden
t mar
ine
spec
ies
(Cat
egor
y IIa
& II
b) a
nd 1
in
dige
nous
cat
adro
mou
s sp
ecie
s (C
ateg
ory
V);
estu
arin
e re
side
nts
shou
ld d
omin
ate
num
eric
ally
, but
th
e pr
opor
tion
of e
stua
ry d
epen
dent
mar
ine
spec
ies
(bas
ed o
n ab
unda
nce)
sho
uld
not f
all b
elow
2%
.
Bird
s
Avifa
una
com
mun
ity
com
posi
tion,
ab
unda
nce
and
richn
ess
Mai
ntai
n co
mpo
sitio
n,
richn
ess
and
abun
danc
e of
di
ffere
nt a
vifa
una
grou
ps
Mai
ntai
n po
pula
tion
of o
rigin
al g
roup
s of
bird
s pr
esen
t on
the
estu
ary;
num
ber o
f bird
s in
any
gr
oup,
oth
er th
an s
peci
es th
at a
re in
crea
sing
re
gion
ally
suc
h as
Egy
ptia
n ge
ese,
sho
uld
not d
rop
belo
w th
e ba
selin
e m
edia
n (d
eter
min
ed b
y pa
st d
ata
and
or in
itial
sur
veys
) num
ber o
f spe
cies
and
/or b
irds
coun
ted
for t
hree
con
secu
tive
sum
mer
or w
inte
r co
unts
404 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
112
Tabl
e 27
: Res
ourc
e Q
ualit
y O
bjec
tives
for G
ROUN
DWAT
ER in
prio
rity
Reso
urce
Uni
ts in
the
Bree
de-G
ourit
z W
ater
Man
agem
ent A
rea
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Co
mpo
nent
Sub
Com
pone
nt In
dica
tor/
Mea
sure
RQ
O N
arra
tive
RQO
Num
eric
A1
Upp
er B
reed
e Tr
ibut
arie
s II
H10
A, H
10B,
H10
C
BB-1
Gro
undw
ater
(all)
Q
uant
ity
Abst
ract
ion
Seas
onal
ab
stra
ctio
n: w
ater
le
vel r
ecov
ers
from
ab
stra
ctio
n im
pact
du
ring
wet
sea
son,
un
der c
onsi
dera
tion
of c
limat
e ch
ange
an
d dr
ough
t cyc
les.
Pe
rman
ent
abst
ract
ion:
wat
er
leve
l dec
line
stab
ilises
und
er
cons
ider
atio
n of
aq
uife
r res
pons
e tim
e.
Gro
undw
ater
use
sho
uld
be
sust
aina
ble
for a
ll us
ers
and
the
envi
ronm
ent
n/a
H10
L, H
10F,
H10
G, H
10J B
B-3
A3 B
reed
e W
orki
ng
Trib
utar
ies
III
H20
A, H
20B,
H20
C,
H20
F BB
-2
H40
B BB
-4
H20
H, H
10H
, H40
C
BB-5
H
30B
BB-6
A3
Bre
ede
Wor
king
Tr
ibut
arie
s III
H
40J
BB-7
A2
MiddleBreede
Re
nosterveld
III
H
40K
B4 R
iver
sond
eren
d Th
eew
ater
s III
H
60A,
H60
B, H
60C
BR
-1
B5 O
verb
erg
Wes
t II
G40
C, G
40D
BO
-1
H16
Ove
rber
g W
est
Coa
stal
II
G40
H
BO-2
F10
Ove
rber
g Ea
st
Ren
oste
rvel
d II
G50
B BO
-3
H17
Ove
rber
g Ea
st
Fynb
os
II G
50D
, G50
E
E8 T
ouw
s III
J1
2C, J
12D
G
Gr-1
C6
Gam
ka B
uffe
ls
II
J11E
G
Gr-3
J2
4B
GG
a-1
J21A
, J21
B, J
23A
GG
a-2a
, 2b
and
2c
D7
Gou
ritz-
Olif
ants
III
J35B
G
O-4
F1
3 Lo
wer
Gou
ritz
II J4
0C, J
40D
G
Go-
1 I1
8 H
esse
qua
III
H90
E G
Go-
2 G1
5Co
astal
II K4
0D
GC
-2
H16
Ove
rber
g W
est
Coa
stal
II
G40
H
BO-2
Gro
undw
ater
(all)
Q
uant
ity
Gro
undw
ater
le
vel
Gro
undw
ater
leve
l
Min
imum
wat
er le
vel i
n ab
stra
ctio
n bo
reho
les
with
in
2.5k
m fr
om th
e oc
ean
to
avoi
d sa
line
intru
sion
>1 m
amsl
F1
0 O
verb
erg
East
R
enos
terv
eld
II G
50B
BO-3
H
17 O
verb
erg
East
Fy
nbos
II
G50
D, G
50E
G15Co
astal
II K4
0D
GC
-2
Gro
undw
ater
(Coa
stal
C
enoz
oic
Dep
osits
) >0
.5 m
amsl
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 405
113
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Co
mpo
nent
Sub
Com
pone
nt In
dica
tor/
Mea
sure
RQ
O N
arra
tive
RQO
Num
eric
A3
Breed
eWorkin
gTributaries
III
H20
H, H
10H
, H40
C
BB-5
G
roun
dwat
er (C
oast
al
Cen
ozoi
c D
epos
its)
Qua
ntity
D
isch
arge
Rel
ativ
e w
ater
le
vels
bet
wee
n gr
ound
wat
er a
nd
surfa
ce w
ater
(in
mam
sl)
The
natu
ral g
radi
ent
betw
een
grou
ndw
ater
and
su
rface
wat
er s
houl
d be
m
aint
aine
d
n/a
G15Co
astal
II K4
0D
GC
-2
K70A
G
C-3
A3
Bre
ede
Wor
king
Tr
ibut
arie
s III
H
40J
BB-7
Gro
undw
ater
(s
uper
ficia
l aqu
ifers
)
A2M
iddleBreede
Re
nosterveld
III
H
40K
B4 R
iver
sond
eren
d Th
eew
ater
s III
H
60A,
H60
B, H
60C
BR
-1
B5 O
verb
erg
Wes
t II
G40
C, G
40D
BO
-1
H16
Ove
rber
g W
est
Coa
stal
II
G40
H
BO-2
F10
Ove
rber
g Ea
st
Ren
oste
rvel
d II
G50
B BO
-3
H17
Ove
rber
g Ea
st
Fynb
os
II G
50D
, G50
E
F13
Low
er G
ourit
z II
J40C
, J40
D
GG
o-1
Gro
undw
ater
(all)
G1
5Co
astal
II K2
0A
GC
-1
A1 U
pper
Bre
ede
Trib
utar
ies
II H
10L,
H10
F, H
10G
, H10
J BB-
3
Gro
undw
ater
(all)
Q
uant
ity
Dis
char
ge
Buffe
r zon
es
No
grou
ndw
ater
abs
tract
ion
arou
nd w
etla
nd a
nd ri
ver
FEPA
s in
acc
orda
nce
with
th
e im
plem
enta
tion
man
ual
for F
EPAs
.
250m
A3 B
reed
e W
orki
ng
Trib
utar
ies
III
H40
J BB
-7
A2M
iddleBreede
Re
nosterveld
III
H
40K
B4 R
iver
sond
eren
d Th
eew
ater
s III
H
60A,
H60
B, H
60C
BR
-1
H16
Ove
rber
g W
est
Coa
stal
II
G40
H
BO-2
F10
Ove
rber
g Ea
st
Ren
oste
rvel
d II
G50
B BO
-3
H17
Ove
rber
g Ea
st
Fynb
os
II G
50D
, G50
E
B5 O
verb
erg
Wes
t II
G40
C, G
40D
BO
-1
C6
Gam
ka B
uffe
ls
II J1
1E, J
21A,
J21
B, J
23A
GG
r-3
GG
a-2a
, 2b
and
2c
F13
Low
er G
ourit
z II
J40C
, J40
D
GG
o-1
II K2
0A
GC
-1
406 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
114
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Co
mpo
nent
Sub
Com
pone
nt In
dica
tor/
Mea
sure
RQ
O N
arra
tive
RQO
Num
eric
G1
5Co
astal
K70A
G
C-3
A3
Bre
ede
Wor
king
Tr
ibut
arie
s III
H
20H
, H10
H, H
40C
BB
-5
Gro
undw
ater
(Coa
stal
C
enoz
oic
Dep
osits
) G1
5Co
astal
II K4
0D
GC
-2
A1 U
pper
Bre
ede
Trib
utar
ies
II H
10L,
H10
F, H
10G
, H10
J BB-
3
Gro
undw
ater
(all)
Q
uant
ity
Low
flow
in ri
ver
Mai
ntai
n (g
roun
dwat
er
com
pone
nt o
f) th
e lo
w fl
ow
requ
irem
ents
in th
e riv
er
Com
plia
nce
with
th
e lo
w fl
ow
requ
irem
ents
in th
e riv
er (a
s pe
r riv
erin
e R
QO
)
Mai
nten
ance
low
flow
re
quire
men
ts: 5
6.12
5Mm
3 /a
(12.
90%
MAR
) at H
1H00
1;
30.2
15M
m3 /a
(28.
63%
MAR
) at
H1H
018
n/a
B4 R
iver
sond
eren
d Th
eew
ater
s III
H
60A,
H60
B, H
60C
BR
-1
Mai
nten
ance
low
flow
re
quire
men
ts: 1
2.56
7Mm
3/a
(28.
63%
MAR
) at N
vii1
0 n/
a
B5 O
verb
erg
Wes
t II
G40
C, G
40D
BO
-1
Mai
nten
ance
low
flow
re
quire
men
ts: 1
2.66
9Mm
3/a
(31.
79%
MAR
) at P
iii1;
54.2
60M
m3/
a (2
6.26
%M
AR)
at G
4H03
0; 7
7.11
1Mm
3/a
(30.
79%
MAR
) at G
4H00
7
n/a
F10
Ove
rber
g Ea
st
Ren
oste
rvel
d II
G50
B
BO-3
Mai
nten
ance
low
flow
re
quire
men
ts: 0
.490
Mm
3/a
(3.9
3%M
AR) a
t Ni4
; 2.
067M
m3/
a (1
3.40
%M
AR)
at G
5H00
3.
n/a
H17
Ove
rber
g Ea
st
Fynb
os
II G
50D
, G50
E
A1 U
pper
Bre
ede
Trib
utar
ies
II H
10A,
H10
B, H
10C
BB
-1
Gro
undw
ater
(all)
Q
ualit
y Pa
thog
ens
E-co
li
Gro
undw
ater
sho
uld
be fi
t fo
r dom
estic
use
afte
r tre
atm
ent;
and
grou
ndw
ater
qu
ality
sha
ll no
t sho
w a
de
terio
ratin
g tre
nd fr
om
natu
ral b
ackg
roun
d
0 co
unts
/ 10
0ml
H10
L, H
10F,
H10
G, H
10J B
B-3
A3 B
reed
e W
orki
ng
Trib
utar
ies
III
H20
A, H
20B,
H20
C,
H20
F BB
-2
H40
B BB
-4
H20
H, H
10H
, H40
C
BB-5
H
30B
BB-6
A3
Bre
ede
Wor
king
Tr
ibut
arie
s III
H
40J
BB-7
A2
MiddleBreede
Re
nosterveld
III
H
40K
B4 R
iver
sond
eren
d Th
eew
ater
s III
H
60A,
H60
B, H
60C
BR
-1
B5 O
verb
erg
Wes
t II
G40
C, G
40D
BO
-1
H16
Ove
rber
g W
est
Coa
stal
II
G40
H
BO-2
F10
Ove
rber
g Ea
st
Ren
oste
rvel
d II
G50
B BO
-3
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 407
115
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Co
mpo
nent
Sub
Com
pone
nt In
dica
tor/
Mea
sure
RQ
O N
arra
tive
RQO
Num
eric
H
17 O
verb
erg
East
Fy
nbos
II
G50
D, G
50E
E8 T
ouw
s III
J1
2C, J
12D
G
Gr-1
C6
Gam
ka B
uffe
ls
II
J11E
G
Gr-3
J2
4B
GG
a-1
J21A
, J21
B, J
23A
GG
a-2a
, 2b
and
2c
D7
Gou
ritz-
Olif
ants
III
J35B
G
O-4
F1
3 Lo
wer
Gou
ritz
II J4
0C, J
40D
G
Go-
1 I1
8 H
esse
qua
III
H90
E G
Go-
2 G1
5Co
astal
II K4
0D
GC
-2
A1 U
pper
Bre
ede
Trib
utar
ies
II H
10A,
H10
B, H
10C
BB
-1
Gro
undw
ater
(all)
Q
ualit
y Pa
thog
ens
Tota
l Col
iform
Gro
undw
ater
sho
uld
be fi
t fo
r dom
estic
use
afte
r tre
atm
ent;
and
grou
ndw
ater
qu
ality
sha
ll no
t sho
w a
de
terio
ratin
g tre
nd fr
om
natu
ral b
ackg
roun
d
<10
coun
ts /
100m
l
H10
L, H
10F,
H10
G, H
10J B
B-3
A3 B
reed
e W
orki
ng
Trib
utar
ies
III
H20
A, H
20B,
H20
C,
H20
F BB
-2
H40
B BB
-4
H20
H, H
10H
, H40
C
BB-5
H
30B
BB-6
A3
Bre
ede
Wor
king
Tr
ibut
arie
s III
H
40J
BB-7
A2
MiddleBreede
Re
nosterveld
III
H
40K
B4 R
iver
sond
eren
d Th
eew
ater
s III
H
60A,
H60
B, H
60C
BR
-1
B5 O
verb
erg
Wes
t II
G40
C, G
40D
BO
-1
H16
Ove
rber
g W
est
Coa
stal
II
G40
H
BO-2
F10
Ove
rber
g Ea
st
Ren
oste
rvel
d II
G50
B BO
-3
H17
Ove
rber
g Ea
st
Fynb
os
II G
50D
, G50
E
E8 T
ouw
s III
J1
2C, J
12D
G
Gr-1
C6
Gam
ka B
uffe
ls
II
J11E
G
Gr-3
J2
4B
GG
a-1
J21A
, J21
B, J
23A
GG
a-2a
, 2b
and
2c
D7
Gou
ritz-
Olif
ants
III
J35B
G
O-4
F1
3 Lo
wer
Gou
ritz
II J4
0C, J
40D
G
Go-
1 I1
8 H
esse
qua
III
H90
E G
Go-
2 G1
5Co
astal
II K4
0D
GC
-2
408 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
116
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Co
mpo
nent
Sub
Com
pone
nt In
dica
tor/
Mea
sure
RQ
O N
arra
tive
RQO
Num
eric
A1 U
pper
Bre
ede
Trib
utar
ies
II
H10
A, H
10B,
H10
C
BB-1
Gro
undw
ater
(C
enoz
oic
coas
tal
depo
sits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
)
Gro
undw
ater
sho
uld
be fi
t fo
r dom
estic
use
afte
r tre
atm
ent;
and
grou
ndw
ater
qu
ality
sha
ll no
t sho
w a
de
terio
ratin
g tre
nd fr
om
natu
ral b
ackg
roun
d
<6.8
mg/
l
Salts
EC
<3
11 m
S/m
Gro
undw
ater
(B
okke
veld
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<2.4
mg/
l Sa
lts
EC
<236
mS/
m
Gro
undw
ater
(N
ardo
uw G
roup
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <4
.4 m
g/l
Salts
EC
<1
19 m
S/m
H10
F, H
10G
, H10
J, H
10L
BB-3
Gro
undw
ater
(C
enoz
oic
coas
tal
depo
sits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <9
.6 m
g/l
Salts
EC
<7
3 m
S/m
Gro
undw
ater
(Tab
le
Mou
ntai
n G
roup
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <1
.8 m
g/l
Salts
EC
<1
09 m
S/m
A3 B
reed
e W
orki
ng
Trib
utar
ies
III
H20
A, H
20B,
H20
C,
H20
F BB
-2
Gro
undw
ater
(C
enoz
oic
coas
tal
depo
sits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <1
1.0
mg/
l
Salts
EC
<1
68 m
S/m
Gro
undw
ater
(B
okke
veld
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<1.8
mg/
l Sa
lts
EC
<329
mS/
m
Gro
undw
ater
(Tab
le
Mou
ntai
n G
roup
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <3
.7 m
g/l
Salts
EC
<6
3 m
S/m
H10
H, H
20H
, H40
C
BB-5
G
roun
dwat
er
(Cen
ozoi
c co
asta
l de
posi
ts)
Qua
lity
Nut
rient
s N
O3
(as
N)
<3.1
mg/
l
Salts
EC
<5
91 m
S/m
H30
B BB
-6
Gro
undw
ater
(C
enoz
oic
coas
tal
depo
sits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <9
.8 m
g/l
Salts
EC
<1
70 m
S/m
Gro
undw
ater
(B
okke
veld
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<3.6
mg/
l Sa
lts
EC
<589
mS/
m
Gro
undw
ater
(N
ardo
uw G
roup
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <4
.4 m
g/l
Salts
EC
<1
19 m
S/m
H40
J, H
40K
BB-7
Gro
undw
ater
(C
enoz
oic
coas
tal
depo
sits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <1
0 m
g/l
Salts
EC
<2
80 m
S/m
Gro
undw
ater
(B
okke
veld
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<3.6
mg/
l Sa
lts
EC
<741
mS/
m
Gro
undw
ater
(Tab
le
Mou
ntai
n G
roup
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <3
.8 m
g/l
Salts
EC
<1
17 m
S/m
B4 R
iver
sond
eren
d Th
eew
ater
s III
H
60A,
H60
B, H
60C
BR
-1
Gro
undw
ater
(C
enoz
oic
coas
tal
depo
sits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <1
0 m
g/l
Salts
EC
<2
80 m
S/m
Gro
undw
ater
(B
okke
veld
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<3.6
mg/
l Sa
lts
EC
<741
mS/
m
Qua
lity
Nut
rient
s N
O3
(as
N)
<3.8
mg/
l
STAATSKOERANT, 23 NOVEMBER 2018 No. 42053 409
117
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Co
mpo
nent
Sub
Com
pone
nt In
dica
tor/
Mea
sure
RQ
O N
arra
tive
RQO
Num
eric
G
roun
dwat
er (T
able
M
ount
ain
Gro
up)
Salts
EC
<7
0 m
S/m
B5 O
verb
erg
Wes
t II
G40
A, G
40C
, G40
D
BO-1
Gro
undw
ater
(B
okke
veld
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<3.6
mg/
l Sa
lts
EC
<589
mS/
m
Gro
undw
ater
(Tab
le
Mou
ntai
n G
roup
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <3
.8 m
g/l
Salts
EC
<1
17 m
S/m
H16
Ove
rber
g W
est
Coa
stal
II
G40
H
BO-2
Gro
undw
ater
(C
enoz
oic
coas
tal
depo
sits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <9
.8 m
g/l
Salts
EC
<2
80 m
S/m
Gro
undw
ater
(B
okke
veld
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<3.6
mg/
l Sa
lts
EC
<589
mS/
m
Gro
undw
ater
(Tab
le
Mou
ntai
n G
roup
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <3
.8 m
g/l
Salts
EC
<1
17 m
S/m
F1
0 O
verb
erg
East
R
enos
terv
eld
II G
50B
BO-3
G
roun
dwat
er
(Cen
ozoi
c co
asta
l de
posi
ts)
Qua
lity
Nut
rient
s N
O3
(as
N)
<10
mg/
l
H17
Ove
rber
g Ea
st
Fynb
os
II G
50D
, G50
E Sa
lts
EC
<280
mS/
m
F10
Ove
rber
g Ea
st
Ren
oste
rvel
d II
G50
B BO
-3
Gro
undw
ater
(B
okke
veld
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<3.6
mg/
l
H17
Ove
rber
g Ea
st
Fynb
os
II G
50D
, G50
E Sa
lts
EC
<741
mS/
m
F10
Ove
rber
g Ea
st
Ren
oste
rvel
d II
G50
B BO
-3
Gro
undw
ater
(Tab
le
Mou
ntai
n G
roup
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <3
.8 m
g/l
H17
Ove
rber
g Ea
st
Fynb
os
II G
50D
, G50
E Sa
lts
EC
<117
mS/
m
C6
Gam
ka B
uffe
ls
II
J11E
G
Gr-3
G
roun
dwat
er (a
ll)
Qua
lity
Nut
rient
s N
O3
(as
N)
<11.
7 m
g/l
Salts
SO
4 <
600
mg/
l Sa
lts
EC
<231
mS/
m
J24B
G
Ga-
1 G
roun
dwat
er
(Bea
ufor
t Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<12.
0 m
g/l
Salts
SO
4 <
237
mg/
l Sa
lts
EC
<226
mS/
m
J21A
, J21
B, J
21D
, J23
A G
Ga-
2a,
2b a
nd 2
c
Gro
undw
ater
(C
enoz
oic
coas
tal
depo
sits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <1
5.8
mg/
l Sa
lts
SO4
<525
mg/
l Sa
lts
EC
<310
mS/
m
Gro
undw
ater
(B
eauf
ort G
roup
, Ka
roo
Supe
rgro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<15.
9 m
g/l
Salts
SO
4 <6
34 m
g/l
Salts
EC
<3
67 m
S/m
E8 T
ouw
s III
J1
2C, J
12D
G
Gr-1
Gro
undw
ater
(C
enoz
oic
coas
tal
depo
sits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <9
.8 m
g/l
Salts
EC
<1
70 m
S/m
Gro
undw
ater
(W
itteb
erg
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<11.
0 m
g/l
Salts
EC
<4
20 m
S/m
410 No. 42053 GOVERNMENT GAZETTE, 23 NOVEMBER 2018
118
IUA
Clas
s Q
uate
rnar
y Ca
tchm
ent
RU
Reso
urce
Nam
e Co
mpo
nent
Sub
Com
pone
nt In
dica
tor/
Mea
sure
RQ
O N
arra
tive
RQO
Num
eric
G
roun
dwat
er
(Bok
keve
ld G
roup
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <3
.6 m
g/l
Salts
EC
<5
89 m
S/m
D7
Gou
ritz-
Olif
ants
III
J35B
G
O-4
Gro
undw
ater
(B
okke
veld
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<11.
0 m
g/l
Salts
EC
<5
89 m
S/m
G
roun
dwat
er (T
able
M
ount
ain
Gro
up)
Qua
lity
Nut
rient
s N
O3
(as
N)
<11.
0 m
g/l
Salts
EC
<1
70 m
S/m
F13
Low
er G
ourit
z II
J40C
, J40
D
GG
o-1
Gro
undw
ater
(Coa
stal
C
enoz
oic
Dep
osits
) Q
ualit
y N
utrie
nts
NO
3 (a
s N
) <3
.3 m
g/l
Salts
EC
<1
70 m
S/m
I18
Hes
sequ
a III
H
90E
GG
o-2a
an
d 2b
G
roun
dwat
er (C
oast
al
Cen
ozoi
c D
epos
its)
Qua
lity
Nut
rient
s N
O3
(as
N)
<4.5
mg/
l Sa
lts
EC
<316
mS/
m
G15
Coa
stal
II
K40D
G
C-2
G
roun
dwat
er (C
oast
al
Cen
ozoi
c D
epos
its)
Qua
lity
Nut
rient
s N
O3
(as
N)
<11.
0 m
g/l
Salts
EC
<1
70 m
S/m