njcat technology verification hydroworks hg 6 separator ... · hat the hydroworks hg 6 separator...
TRANSCRIPT
NJC
AT
TE
CH
NO
LO
GY
VE
RIF
ICA
TIO
N
Hyd
row
ork
s H
G 6
Sep
ara
tor
Hyd
row
ork
s, L
LC
Ju
ly 2
009
TA
BL
E O
F C
ON
TE
NT
S
Lis
to
fF
igu
res
iii
Lis
to
fT
able
s i
v
1.
Intr
oduct
ion
1
1.1
NJC
AT
Pro
gra
m1
1.2
Tec
hn
olo
gy
Ver
ific
atio
nR
epo
rt2
1.3
Tec
hnolo
gy
Des
crip
tion
2
1.3
.1T
ech
no
log
yS
tatu
s2
1.3
.2S
pec
ific
Ap
pli
cabil
ity
3
1.3
.3R
ang
e o
f C
on
tam
inan
t C
har
acte
rist
ics
3
1.3
.4R
ange
of
Sit
eC
har
acte
rist
ics
3
1.3
.5M
ater
ial
Over
vie
w, H
andli
ng a
nd S
afet
y
4
1.4
Pro
ject
Des
crip
tion
4
1.5
Key
Conta
cts
5
2.
Eval
uat
ion
of
the
App
lica
nt
5
2.1
Co
rpo
rate
His
tory
5
2.2
Org
aniz
atio
nan
dM
anag
emen
t5
2.3
Op
erat
ing
Exp
erie
nce
wit
h P
rop
ose
d T
ech
no
log
y
6
2.4
Pat
ents
6
2.5
Tec
hn
ical
Res
ou
rces
, S
taff
an
d C
apit
al E
qu
ipm
ent
6
3.
Tre
atm
ent
Sy
stem
Des
crip
tio
n7
4.
Tec
hn
ical
Per
form
ance
Cla
im9
5.
Tre
atm
ent
Sy
stem
Per
form
ance
10
5.1
Lab
ora
tory
Tes
ting
10
5.1
.1T
est
Fac
ilit
yD
escr
ipti
on
10
5.1
.2In
stru
men
tati
on
an
d M
easu
rin
g T
ech
niq
ues
11
i
5.2
Tes
tP
roce
dure
s14
5.2
.1P
has
e 1
- R
e-en
trai
nm
ent
and
Was
ho
ut
14
5.2
.2P
has
e 2
– H
yd
rau
lic
Cap
acit
y a
nd C
har
acte
rist
ics
15
5.2
.3P
has
e 3 –
Sed
imen
t R
emoval
Eff
icie
ncy
Tes
ting
15
5.3
Ver
ific
atio
nP
roce
du
res
16
5.3
.1L
abo
rato
ryT
esti
ng
Res
ult
s16
5.4
Mai
nte
nan
ce20
6.
Tec
hn
ical
Ev
alu
atio
nA
nal
ysi
s21
6.1
Ver
ific
atio
no
fP
erfo
rman
ceC
laim
21
6.2
Lim
itat
ions
21
6.2
.1F
acto
rsC
ausi
ng
Un
der
-Per
form
ance
21
6.2
.2P
oll
uta
nt
Tra
nsf
orm
atio
n a
nd
Rel
ease
22
6.2
.3S
ensi
tivit
yto
Hea
vy
Lo
adin
g22
6.2
.4M
osq
uit
oes
22
7.
Net
En
vir
onm
enta
lB
enef
it22
8.
Ref
eren
ces
23
App
endix
A24
ii
Lis
t o
f F
igu
res
Fig
ure
1 H
ydro
work
s H
G O
per
atio
n –
Pla
n V
iew
7
Fig
ure
2 H
ydro
work
s H
G O
per
atio
n –
Pro
file
Vie
w9
Fig
ure
3T
est
Sed
imen
tM
ixP
SD
13
Fig
ure
4 R
e-en
trai
nm
ent
Eff
luen
t S
amp
le C
once
ntr
atio
ns
at 5
0%
Load
ing C
apac
ity
17
Fig
ure
5 H
G 6
Rem
oval
Eff
icie
ncy
Curv
e20
Fig
ure
A.1
Hy
dro
wo
rks
HG
6 T
est
Un
it
25
Fig
ure
A.2
Ald
en’s
Sto
rmw
ater
Lab
ora
tory
Flo
wL
oop
26
Fig
ure
A.3
Pre
ssu
reT
apL
oca
tio
ns
27
iii
Lis
t o
f T
ab
les
Tab
le 1
Hydro
work
s H
G S
epar
ator
Dim
ensi
on
s* a
nd
Flo
w r
ates
3
Tab
le 2
Max
imu
m R
eco
mm
end
ed I
nle
tpip
eD
iam
eter
4
Tab
le 3
Tes
t S
edim
ent
Mix
Usi
ng
Co
mm
erci
ally
Av
aila
ble
US
Sil
ica
San
d13
Tab
le 4
Sed
imen
t R
emo
val
Eff
icie
ncy
Tes
tin
g S
um
mar
y/M
od
ifie
d m
ass
bal
ance
met
ho
d19
Tab
le 5
Sed
imen
t R
emo
val
Wei
gh
ted
Eff
icie
ncy
20
iv
1.
Intr
od
uct
ion
1.1
N
ew
Jer
sey C
orp
ora
tion
for
Ad
van
ced
Tec
hn
olo
gy (
NJC
AT
) P
rogra
m
NJC
AT
is
a n
ot-
for-
pro
fit
corp
ora
tio
n t
o p
rom
ote
in N
ew J
erse
y t
he
rete
nti
on a
nd g
row
th o
f
tech
no
log
y-b
ased
bu
sin
esse
s in
em
erg
ing
fie
lds
such
as
env
iro
nm
enta
l an
d e
ner
gy
tec
hn
olo
gie
s.
NJC
AT
p
rov
ides
in
no
vat
ors
w
ith
the
reg
ula
tory
, co
mm
erci
al,
tech
nolo
gic
al
and
finan
cial
assi
stan
ce r
equ
ired
to
bri
ng
th
eir
idea
s to
mar
ket
succ
essf
ull
y.
Sp
ecif
ical
ly,
NJC
AT
fu
nct
ion
s to
:
Ad
van
ce
po
licy
st
rate
gie
s an
d
reg
ula
tory
m
ech
anis
ms
to
pro
mo
te
tech
no
log
y
com
mer
cial
izat
ion
;
Iden
tify
, ev
alu
ate,
an
d r
eco
mm
end
sp
ecif
ic t
ech
no
log
ies
for
wh
ich
th
e re
gu
lato
ry a
nd
com
mer
cial
izat
ion
pro
cess
sh
ou
ld b
e fa
cili
tate
d;
Fac
ilit
ate
fun
din
g a
nd
co
mm
erci
al r
elat
ion
ship
s/al
lian
ces
to b
rin
g n
ew t
ech
no
log
ies
to m
ark
et a
nd
new
bu
sin
ess
to t
he
stat
e; a
nd
Ass
ist
in
the
iden
tifi
cati
on
o
f m
ark
ets
and
ap
pli
cati
on
s fo
r co
mm
erci
aliz
ed
tech
no
log
ies.
Th
e te
chn
olo
gy
ver
ific
atio
n p
rog
ram
sp
ecif
ical
ly e
nco
ura
ges
coll
abora
tio
n b
etw
een
ven
do
rs a
nd
use
rs o
f te
chn
olo
gy
. T
hro
ug
h t
his
pro
gra
m,
team
s of
acad
emic
an
d b
usi
nes
s p
rofe
ssio
nal
s ar
e
form
ed t
o i
mp
lem
ent
a co
mpre
hen
siv
e ev
alu
atio
n o
f v
end
or
spec
ific
per
form
ance
cla
ims.
T
hu
s,
sup
pli
ers
hav
e th
e co
mpet
itiv
e ed
ge
of
an i
ndep
enden
t th
ird p
arty
confi
rmat
ion o
f cl
aim
s.
Purs
uan
t to
N.J
.S.A
. 13:1
D-1
34 e
t se
q.
(Ener
gy
an
d E
nv
iro
nm
enta
l T
ech
nolo
gy
Ver
ific
atio
n
Pro
gra
m)
the
New
Jer
sey
Dep
artm
ent
of
En
vir
on
men
tal
Pro
tect
ion
(N
JDE
P)
and
NJC
AT
hav
e
esta
bli
shed
a
Per
form
ance
P
artn
ersh
ip
Ag
reem
ent
(PP
A)
wh
ereb
y
NJC
AT
p
erfo
rms
the
tech
no
log
y v
erif
icat
ion
rev
iew
an
d N
JDE
P c
erti
fies
th
e n
et b
enef
icia
l en
vir
on
men
tal
effe
ct o
f th
e
tech
no
log
y.
In
ad
dit
ion
, N
JDE
P/N
JCA
T w
ork
in
co
nju
nct
ion
to
dev
elo
p e
xp
edit
ed o
r m
ore
effi
cien
t ti
mef
ram
es f
or
rev
iew
an
d d
ecis
ion
-mak
ing
of
per
mit
s o
r ap
pro
val
s as
soci
ated
wit
h t
he
ver
ifie
d/c
erti
fied
tec
hnolo
gy.
Th
e P
PA
als
o r
equ
ires
th
at:
The
NJD
EP
sh
all
ente
r in
to
reci
pro
cal
env
iro
nm
enta
l te
chn
olo
gy
ag
reem
ents
co
nce
rnin
g
eval
uat
ion
and
ver
ific
atio
n
pro
toco
ls
wit
h
the
Un
ited
S
tate
s E
nvir
on
men
tal
Pro
tect
ion
Ag
ency
, o
ther
lo
cal
req
uir
ed o
r n
atio
nal
en
vir
on
men
tal
agen
cies
, en
titi
es o
r g
roup
s in
oth
er
stat
es
and
New
Je
rsey
fo
r th
e purp
ose
o
f en
cou
ragin
g
and
p
erm
itti
ng
the
reci
pro
cal
acce
pta
nce
of
tech
no
log
y d
ata
and
in
form
atio
n c
on
cern
ing
th
e ev
alu
atio
n a
nd
ver
ific
atio
n o
f
ener
gy
an
d e
nv
iro
nm
enta
l te
chn
olo
gie
s; a
nd
Th
e N
JDE
P s
hal
l w
ork
clo
sely
wit
h t
he
Sta
te T
reas
ure
r to
in
clu
de
in S
tate
bid
spec
ific
atio
ns,
as d
eem
ed a
pp
rop
riat
e b
y t
he
Sta
te T
reas
ure
r, a
ny
tec
hn
olo
gy
ver
ifie
d u
nd
er t
he
En
erg
y a
nd
En
vir
on
men
t T
ech
no
log
y V
erif
icat
ion
Pro
gra
m.
1
1.2
Tec
hn
olo
gy
Ver
ific
ati
on
Rep
ort
On N
ovem
ber
26,
2008,
Hydro
work
s, L
LC
(50 S
. 21
st S
tree
t, 2
nd F
loor,
Ken
ilw
ort
h,
NJ
07033)
sub
mit
ted
a f
orm
al r
equ
est
for
par
tici
pat
ion
in t
he
NJC
AT
Tec
hnolo
gy V
erif
icat
ion P
rogra
m.
Th
e te
chn
olo
gy
pro
po
sed
– T
he
Hy
dro
wo
rks
Hy
dro
gu
ard
(H
G)
sep
arat
or
(Mo
del
HG
6)
– i
s a
cen
trif
ug
e h
yd
rod
yn
amic
sep
arat
or
des
ign
ed t
o r
emo
ve
susp
end
ed s
oli
ds
(an
d a
sso
ciat
ed m
etal
s,
nutr
ients
and b
acte
ria)
, oil
, an
d f
loat
able
s (t
rash
) fr
om
sto
rmw
ater
.
Th
e re
qu
est
(aft
er p
re-s
cree
nin
g b
y N
JCA
T s
taff
per
son
nel
in
acc
ord
ance
wit
h t
he
tech
no
logy
asse
ssm
ent
gu
idel
ines
) w
as ac
cepte
d in
to th
e v
erif
icat
ion
p
rog
ram
. T
his
v
erif
icat
ion
re
po
rt
cover
s th
e ev
aluat
ion b
ased
up
on t
he
per
form
ance
clai
m o
f th
e ven
dor,
Hydro
work
s (s
ee S
ecti
on
4).
Th
e v
erif
icat
ion
re
po
rt
dif
fers
fr
om
ty
pic
al
NJC
AT
v
erif
icat
ion
re
po
rts
in
that
fi
nal
ver
ific
atio
n o
f th
e H
yd
row
ork
s H
G 6
se
par
ator
(and su
bse
quen
t N
JDE
P ce
rtif
icat
ion
o
f th
e
tech
nolo
gy)
awai
ts c
om
ple
ted f
ield
tes
ting t
hat
mee
ts t
he
full
req
uir
emen
ts o
f th
e T
ech
no
log
y
Acc
epta
nce
an
d R
ecip
roci
ty P
artn
ersh
ip (
TA
RP
) –
Sto
rmw
ater
Bes
t M
anag
emen
t P
ract
ice
Tie
r
II P
roto
col
for
Inte
rsta
te R
ecip
roci
ty f
or
sto
rmw
ater
tre
atm
ent
tech
no
log
y.
Th
is v
erif
icat
ion
rep
ort
is
in
ten
ded
to
ev
alu
ate
the
Hy
dro
wo
rks
HG
6
se
par
ato
r p
erfo
rman
ce
clai
m
for
the
tech
no
log
y b
ased
on
car
efu
lly
co
nd
uct
ed l
abo
rato
ry s
tud
ies.
T
he
per
form
ance
cla
im i
s ex
pec
ted
to b
e m
od
ifie
d a
nd
exp
and
ed f
oll
ow
ing
co
mple
tion o
f th
e T
AR
P r
equir
ed f
ield
-tes
ting.
Th
is v
erif
icat
ion
pro
ject
pri
mar
ily
in
vo
lved
the
eval
uat
ion
of
com
pan
y m
anu
als
and
lit
erat
ure
and
a t
hir
d p
arty
lab
ora
tory
tes
t re
port
to
ver
ify t
hat
th
e H
yd
row
ork
s H
G 6
sep
arat
or
sati
sfie
s th
e
per
form
ance
cla
im m
ade
by
Hy
dro
wo
rks,
LL
C.
1.3
Tec
hn
olo
gy D
escr
ipti
on
1.3
.1T
ech
no
log
y S
tatu
s: g
ener
al
des
crip
tio
n i
ncl
ud
ing
ele
men
ts o
f
inn
ovati
on
/un
iqu
enes
s/ c
om
pet
itiv
e ad
van
tage.
In 1
990,
Congre
ss e
stab
lish
ed d
eadli
nes
and p
riori
ties
for
EP
A t
o r
equir
e p
erm
its
for
dis
char
ges
of
sto
rmw
ater
th
at i
s n
ot
mix
ed o
r co
nta
min
ated
wit
h h
ou
seh
old
or
ind
ust
rial
was
tew
ater
. P
has
e
I re
gula
tions
esta
bli
shed
th
at
a N
PD
ES
(N
atio
nal
P
oll
uta
nt
Dis
char
ge
Eli
min
atio
n
Sy
stem
)
per
mit
is
req
uir
ed f
or
sto
rmw
ater
dis
char
ge
fro
m m
unic
ipal
itie
s w
ith a
sep
arat
e st
orm
sew
er
syst
em t
hat
ser
ves
a p
op
ula
tio
n g
reat
er t
han
10
0,0
00
an
d c
erta
in d
efin
ed i
nd
ust
rial
act
ivit
ies.
To
rec
eive
a N
PD
ES
per
mit
, th
e m
un
icip
alit
y o
r sp
ecif
ic i
nd
ust
ry h
as t
o d
evel
op a
sto
rmw
ater
man
agem
ent
pla
n
and
id
enti
fy
Bes
t M
anag
emen
t P
ract
ices
fo
r st
orm
wat
er
trea
tmen
t an
d
dis
char
ge.
B
est
Man
agem
ent
Pra
ctic
es (
BM
Ps)
are
mea
sure
s, s
yst
ems,
pro
cess
es o
r co
ntr
ols
th
at
red
uce
poll
uta
nts
at
the
sou
rce
to p
rev
ent
the
poll
uti
on
of
sto
rmw
ater
ru
no
ff d
isch
arg
e fr
om
th
e
site
. P
has
e II
sto
rmw
ater
dis
char
ges
in
clu
de
dis
char
ges
fro
m c
lass
es o
f sm
alle
r m
un
icip
alit
ies
than
th
ose
spec
ific
ally
cla
ssif
ied
as
Ph
ase
I d
isch
arg
e.
Th
e n
atu
re o
f p
oll
uta
nts
in
st
orm
wat
er em
anat
ing fr
om
dif
feri
ng la
nd use
s is
d
iver
se.
T
he
Hydro
work
s H
ydro
guar
d (
HG
) se
par
ato
r is
des
ign
ed t
o t
rap
th
ese
po
llu
tan
ts w
ith
in i
ts c
on
fin
es
un
til
they
are
pro
per
ly r
emo
ved
via
reg
ula
r m
ainte
nan
ce.
Hy
dro
gu
ard
’s u
niq
ue
des
ign
tre
ats
bo
th l
ow
an
d h
igh
flo
ws,
an
d c
on
tain
s th
em i
n s
epar
ate
trea
tmen
t ar
eas.
Th
e d
ual
tre
atm
ent
area 2
con
fig
ura
tio
n a
llo
ws
Hy
dro
gu
ard
to
min
imiz
e sc
ou
r an
d r
esu
spen
sio
n o
f p
rev
iou
sly
cap
ture
d
fin
es in
th
e lo
w fl
ow
tr
eatm
ent
area
duri
ng hig
h fl
ow
co
ndit
ions.
It
is
th
e o
nly
st
orm
wat
er
trea
tmen
t st
ruct
ure
on
the
mar
ket
th
at t
reat
s b
oth
lo
w f
low
an
d h
igh
flo
w a
nd
tre
ats
them
in
tw
o
sep
arat
e co
mp
artm
ents
.
1.3
.2
Sp
ecif
ic A
pp
lica
bil
ity
The
Hydro
work
s H
ydro
guar
d (
HG
) se
par
ator
is a
str
uct
ura
l st
orm
wat
erq
ual
ity
BM
P d
esig
ned
to
trea
t im
per
vio
us
area
s su
ch a
s p
arkin
g l
ots
an
d r
oad
s. S
pec
ific
ap
pli
cati
ons
incl
ud
e:
Par
kin
g l
ots
fo
r an
y f
acil
ity
(co
mm
erci
al o
r in
du
stri
al)
Res
iden
tial
are
as
Tra
nsp
ort
atio
n-r
oad
way
s, b
rid
ges
, an
d t
ran
sit
faci
liti
es
New
dev
elop
men
t o
r re
-dev
elop
men
t ap
pli
cati
on
s
1.3
.3R
an
ge
of
Co
nta
min
an
t C
ha
ract
eris
tics
Th
e H
yd
rog
uar
d s
torm
wat
er t
reat
men
t st
ruct
ure
rem
oves
susp
ended
soli
ds,
incl
udin
g a
ssoci
ated
con
tam
inan
ts
such
as
m
etal
s an
d
nu
trie
nts
, hydro
carb
ons
(oil
) an
d
tras
h
(flo
atab
les)
fr
om
sto
rmw
ater
ru
no
ff.
1.3
.4R
an
ge
of
Sit
e C
ha
ract
eris
tics
Th
e H
yd
row
ork
s H
G s
epar
ato
r is
man
ufa
ctu
red
in
a v
arie
ty o
f si
zes
fro
m 4
ft
insi
de
dia
met
er t
o
12
ft
insi
de
dia
met
er e
ach
des
ign
ed t
o t
reat
a s
pec
ific
sit
e fl
ow
rat
e (T
able
1).
Lar
ger
siz
es m
ay
not
be
avai
lab
le i
n a
ll a
reas
. C
hec
k w
ith H
ydro
work
s to
ensu
re a
vai
labil
ity
of
the
larg
er m
od
el
size
s.
Ta
ble
1 H
yd
row
ork
s H
G S
epa
rato
r D
imen
sio
ns*
an
d F
low
Ra
tes
Mod
elS
tru
ctu
re
Insi
de
Dia
m.
(ft)
Inn
er
Ch
am
ber
Dia
m.
(in
)
Str
uct
ure
Dep
th
(ft)
*
Sed
imen
t
Vo
lum
e
(ft3
)+
Oil
/Flo
ati
ng
Tra
sh V
olu
me
(ft3
) [g
al]
Per
ma
nen
t
Po
ol
Wet
Vo
lum
e
(ga
l)
Tre
atm
ent
Flo
w R
ate
(cfs
) [g
al]
HG
44
31.5
538
10
[76]
470
0.8
0[3
59]
HG
5
540
5.5
64
16 [
123]
808
1.2
5 [
561]
HG
6
648
692
27 [
203]
1269
1.8
0 [
808]
HG
7
756
6.3
125
42 [
313]
1823
2.4
5 [
1100]
HG
8
863
6.7
163
61 [
457]
2507
3.2
0 [
1437]
HG
9
968.5
7.1
207
101 [
754]
3371
4.0
5 [
1818]
HG
10
10
78
7.6
268
119 [
893]
4455
5.0
0 [
2245]
HG
12
12
96
8.5
386
186 [
1389]
7191
7.2
0 [
3232]
*
Ty
pic
al d
imen
sio
ns
– d
imen
sio
ns
wil
l v
ary
bas
ed o
n p
roje
ct r
equ
irem
ents
/spec
ific
s
+
Vo
lum
e b
elo
w t
he
ou
tlet
op
enin
g o
f th
e o
ute
r b
affl
e w
all
(no
t 1
00
% s
edim
ent
load
ing
vo
lum
e fo
r re
com
men
ded
mai
nte
nan
ce)
3
Alt
ho
ug
h t
he
inle
t an
d o
utl
et p
ipe
dia
met
er a
re o
nly
lim
ited
by
th
e st
ruct
ura
l in
teg
rity
of
the
ou
ter
stru
cture
its
elf,
it
is r
eco
mm
end
ed t
hat
the
max
imu
m i
nle
t p
ipe
dia
met
er b
e li
mit
ed t
o t
he
val
ues
giv
en i
n T
able
2 s
ince
thes
e al
low
th
e fu
ll w
idth
of
flo
w f
rom
th
e p
ipe
to e
nte
r th
e in
ner
cham
ber
. F
oll
ow
ing
this
rec
om
men
dat
ion
ensu
res
that
wat
er e
nte
rs t
he
inn
er c
ham
ber
pri
or
to t
he
mid
dle
ch
amb
er f
or
no
rmal
flo
w c
on
dit
ion
s.
Ta
ble
2 M
ax
imu
m R
ecom
men
ded
In
let
Pip
e D
iam
eter
Mo
del
Ma
xim
um
In
let
Pip
e D
iam
eter
(in
)
HG
4
15
HG
5
18
HG
6
24
HG
7
27
HG
8
30
HG
9
30
HG
10
36
HG
12
48
Th
e in
ner
ch
amb
er a
nd
baf
fle
wal
l g
ener
ally
ex
ten
d 1
.5 t
o 2
tim
es t
he
inle
t p
ipe
dia
met
er a
bove
the
inle
t in
ver
t. H
yd
row
ork
s sh
ou
ld b
e co
nta
cted
fo
r ap
pli
cati
on
s w
ith
in
let
pip
e d
iam
eter
s
gre
ater
th
an 4
8”
or
shal
low
ap
pli
cati
on
s w
her
e th
e h
eig
ht
of
the
inn
er c
ham
ber
an
d o
utl
et b
affl
e
wal
l nee
d t
o b
e re
duce
d.
1.3
.5M
ate
ria
l O
ver
vie
w,
Ha
nd
lin
g a
nd
Sa
fety
The
Hydro
work
s H
G (
Hydro
guar
d)
sep
arat
or
seri
es c
onsi
sts
of
a co
ncr
ete
man
hole
wit
h i
nte
rnal
co-p
oly
mer
po
lyp
rop
yle
ne
com
po
nen
ts.
Fo
r m
ost
un
its,
th
e in
ner
ch
amb
er a
nd
ou
tlet
baf
fle
wal
l
are
inst
alle
d a
t th
e p
re-c
ast
con
cret
e m
anu
fact
uri
ng
fac
ilit
y.
Th
is m
inim
izes
th
e p
ote
nti
al f
or
any
inst
alla
tio
n e
rro
rs.
HG
sep
arat
or
acce
ss f
or
insp
ecti
on
an
d m
ain
ten
ance
is
achie
ved
via
mult
iple
24
” co
ver
s (T
he
HG
4 m
ay h
ave
a si
ng
le l
arger
30”o
r 3
6”
cov
er d
ue
to l
ack
of
spac
e fo
r m
ult
iple
24”
cover
s).
The
Hydro
work
s H
G u
nit
is
easi
ly m
ain
tain
ed u
sin
g a
vac
tor
tru
ck o
r cl
am s
hel
l
bu
cket
.
Mai
nte
nan
ce r
esid
ual
s sh
ould
be
dis
pose
d i
n a
ccord
ance
wit
h l
oca
l an
d s
tate
reg
ula
tio
ns.
So
lid
s
reco
ver
ed f
rom
th
e H
yd
row
ork
s H
G s
epar
ato
r can
ty
pic
ally
be
lan
d f
ille
d a
nd
liq
uid
s d
isp
ose
d o
f
at a
was
tew
ater
tr
eatm
ent
pla
nt.
T
her
e m
ay b
e so
me
spec
ific
la
nd u
se ac
tiv
itie
s th
at cr
eate
con
tam
inat
ed s
oli
ds,
whic
h w
ill
be
cap
ture
d i
nth
e sy
stem
. S
uch
mat
eria
l w
ou
ld h
ave
to b
e
han
dle
d
and
d
isp
ose
d
of
in
acco
rdan
ce
wit
h
the
app
ropri
ate
reg
ula
tory
re
quir
emen
ts.
Wit
h
incr
ease
d e
nv
iro
nm
enta
l re
gu
lati
on
s, l
oca
l la
ws
and
reg
ula
tio
ns
may
co
nta
in s
trin
gen
t d
isp
osa
l
gu
idel
ines
, w
hic
h v
ary
fro
m s
tate
to
sta
te;
it i
s re
com
men
ded
th
e se
rvic
e co
mpan
y f
irst
ch
eck
wit
h l
oca
l an
d s
tate
au
tho
riti
es p
rio
r to
dis
po
sal
of
all
po
lluta
nts
rem
ov
ed f
rom
th
e H
G s
epar
ato
r.
1.4
Pro
ject
Des
crip
tio
n
Th
is v
erif
icat
ion
pro
ject
pri
mar
ily
in
vo
lved
the
eval
uat
ion
of
com
pan
y m
anu
als
and
lit
erat
ure 4
and
a t
hir
d p
arty
lab
ora
tory
tes
t re
port
to
ver
ify t
hat
th
e H
yd
row
ork
s H
G 6
sep
arat
or
sati
sfie
s th
e
per
form
ance
cla
im m
ade
by
Hy
dro
wo
rks,
LL
C.
1.5
K
ey C
on
tact
s
Rh
ea W
ein
ber
g B
rek
ke
Ex
ecu
tiv
e D
irec
tor
New
Jer
sey C
orp
ora
tion f
or
Advan
ced T
echnolo
gy
c/o N
ew J
erse
y E
co C
om
ple
x
12
00
Flo
ren
ce C
olu
mbu
s R
oad
Bord
ento
wn, N
J 08505
60
9-4
99
-36
00
ex
t. 2
27
rwb
rek
ke@
njc
at.
org
Ric
har
d S
. M
agee
, S
c.D
., P
.E., B
CE
E
Tec
hn
ical
Dir
ecto
r
New
Jer
sey C
orp
ora
tion f
or
Advan
ced T
echnolo
gy
15
Vu
ltee
Dri
ve
Flo
rham
Par
k, N
J 0
79
32
973-8
79-3
056
rsm
ag
ee@
rcn
.co
m
Gra
ham
Bry
ant,
P.E
.
Ow
ner
Hydro
work
s, L
LC
50 S
. 21
st S
t.,
2n
d F
loo
r
Ken
ilw
ort
h, N
J 0
70
33
908-2
72-4
411
gb
rya
nt@
hy
dro
wo
rks.
com
2.
Ev
alu
ati
on
of
the
Ap
pli
can
t
2.1
Corp
ora
te H
isto
ry
Hy
dro
wo
rks,
LL
C w
as f
ou
nd
ed b
y G
rah
am B
ryan
t in
20
03
. M
r. B
ryan
t sa
w a
nee
d t
o i
mp
rov
e
up
on
ex
isti
ng
hy
dro
dy
nam
ic s
epar
ato
r des
igns
that
wer
e b
eing p
rom
ote
d i
n t
he
mar
ket
pla
ce t
o
faci
lita
te m
ain
ten
ance
an
d c
aptu
re o
f la
rger
soli
ds/
float
able
s du
rin
g p
erio
ds
of
hig
h f
low
th
rou
gh
the
use
of
mu
ltip
le f
low
pat
hs
thro
ug
h a
sep
arat
or
(lo
w f
low
/hig
h f
low
). D
evel
op
men
t o
f th
e
Hy
dro
gu
ard
sep
arat
or
pro
gre
ssed
th
rou
gh
20
03
wit
h H
ydro
work
s, L
LC
bei
ng i
nco
rpora
ted i
n
New
Jer
sey i
n O
ctob
er o
f 2003. T
he
firs
t unit
was
so
ld i
n N
ov
ember
of
20
03
in
Mas
sach
use
tts.
2.2
Org
an
iza
tio
n a
nd
Ma
na
gem
ent
Hy
dro
wo
rks,
L
LC
is
h
ead
qu
arte
red
in
Ken
ilw
ort
h,
New
Je
rsey
an
d
work
s w
ith
var
ious
man
ufa
ctu
rers
th
rou
gh
ou
t th
e U
nit
ed S
tate
s. H
yd
row
ork
s is
man
aged
by
Gra
ham
Bry
ant,
a w
ater
reso
urc
es e
ngin
eer,
who h
as 2
3 y
ears
of
exp
erie
nce
in w
ater
res
ourc
es e
ngin
eeri
ng a
nd s
torm
wat
er m
anag
emen
t d
esig
n.
Mr.
Bry
ant’
s ex
per
ience
in s
torm
wat
er i
ncl
udes
:
Pri
nci
pal
auth
or
of
the
"Sto
rmw
ater
Man
agem
ent
Pra
ctic
es P
lan
nin
g a
nd
Des
ign
Man
ual
"
for
the
Min
istr
y o
f th
e E
nv
iro
nm
ent
in O
nta
rio
Can
ada
(1994)
whic
h w
as t
he
guid
elin
e
do
cum
ent
for
sto
rmw
ater
qu
alit
y c
rite
ria
in t
he
pro
vin
ce o
f O
nta
rio
fro
m 1
99
4-2
00
2.
Th
e 5
nu
mer
ic c
rite
ria
for
sizi
ng
sto
rmw
ater
qu
alit
y B
MP
s th
at M
r. B
ryan
t d
evel
op
ed i
n 1
99
4
are
stil
l b
ein
g u
sed
to
day
.
Co
-au
tho
r o
f th
e M
OE
(M
inis
try
of
En
vir
on
men
t) d
ocu
men
t "S
torm
wat
er Q
ual
ity B
est
Man
agem
ent
Pra
ctic
es"
(19
92
)
Lec
ture
r fo
r th
e M
OE
sto
rmw
ater
tra
inin
g p
rog
ram
(1
99
4)
Up
dat
ed
flood
dam
age
curv
es
for
the
Can
adia
n
side
of
the
Gre
at
Lak
es
for
the
Inte
rnat
ion
al J
oin
t C
om
mis
sio
n (
19
88
)
Det
erm
ined
th
e fl
oo
d d
amag
e as
sess
men
t d
ue
to l
ake
lev
el r
egu
lati
on
fo
r L
ake
Su
per
ior
(19
87
)
Des
ign
ed t
he
sto
rmw
ater
pip
ing
net
wo
rk f
or
Ter
min
al 3
of
Toro
nto
In
tern
atio
nal
Air
po
rt
Des
ign
er o
f n
um
ero
us
sto
rm w
ater
man
agem
ent
des
ign
s in
clu
din
g s
torm
dra
in s
urc
har
ge
anal
yse
s, w
ater
qu
alit
y p
on
d d
esig
n, fl
oo
d c
on
tro
l p
on
d d
esig
n,
infi
ltra
tio
n r
ech
arg
e
des
ign
, al
tern
ativ
e m
un
icip
al s
tan
dar
ds
to p
rom
ote
LID
, an
d w
ater
shed
mo
del
ing
Dir
ecto
r of
Engin
eeri
ng f
or
Sto
rmce
pto
r (I
mbri
um
) 1
99
5-1
99
9
Gen
eral
Man
ager
fo
r S
torm
cep
tor
for
Rin
ker
Mat
eria
ls (
Sto
rmce
pto
r U
S l
icen
see)
19
99
-
2002
2.3
Op
era
tin
g E
xp
erie
nce
wit
h t
he
Pro
po
sed
Tec
hn
olo
gy
Hydro
work
s,
LL
C
has
over
850
Hydro
guar
d
sep
arat
ors
in
stal
led
in
the
Unit
ed
Sta
tes.
Hy
dro
wo
rks
sep
arat
ors
hav
e bee
n i
nst
alle
d i
n C
O,
CT
, F
L,
IL,
IN,
KY
, M
D,
MN
, N
H,
NJ,
NY
,
OH
, P
A,
RI,
TX
, V
A,
and W
I.
Mr.
Bry
ant
has
bee
n i
nv
olv
ed i
n t
he
des
ign
of
sto
rm w
ater
sep
arat
ors
sin
ce 1
99
8.
Whil
e at
Sto
rmce
pto
r/R
ink
er M
ater
ials
, M
r. B
ryan
t re
des
ign
ed t
he
stan
dar
d i
nli
ne
Sto
rmce
pto
r, d
esig
ned
the
inle
t S
torm
cep
tor
(ST
C4
50
i),
des
ign
ed
the
sub
mer
ged
S
torm
cep
tor
and
th
e m
ult
iple
Sto
rmce
pto
r se
par
ators
(S
TC
11000,
ST
C13000,
ST
C16000).
Hy
dro
wo
rks
is i
nv
olv
ed i
n d
esig
nin
g e
ach
Hy
dro
gu
ard
sep
arat
or.
Th
is a
llo
ws
cust
om
izat
ion
of
the
inte
rnal
co
mp
on
ents
fo
r an
y s
ite
spec
ific
co
nce
rns.
2.4
P
ate
nts
Th
e H
yd
rog
uar
d i
s p
rote
cted
by
pat
ents
iss
ued
by
th
e U
.S.
Pat
ent
Off
ice.
Pat
ents
are
pen
din
g i
n
fore
ign c
ountr
ies.
Pat
ents
for
this
tec
hnolo
gy a
nd o
ther
hydro
dynam
ic s
epar
ators
dev
elop
ed b
y
Mr.
Bry
ant
incl
ude
U.S
. P
aten
t N
um
ber
s 6,9
13,1
55, 6,9
51,6
19, an
d 7
,022,2
43.
2.5
Tec
hn
ica
l R
eso
urc
es, S
taff
an
d C
ap
ita
l E
qu
ipm
ent
Hydro
work
s has
it
s co
rpora
te
off
ices
in
K
enil
wort
h,
NJ.
M
r.
Bry
ant
ov
erse
es
all
tech
nic
al
asp
ects
of
Hydro
guar
d d
esig
n a
nd p
roduct
ion.
In a
ddit
ion
, 2
fu
ll-t
ime
and
on
e p
art-
tim
e st
aff
pro
vid
e in
sid
e sa
les,
co
llec
tions,
and p
rom
oti
onal
supp
ort
. H
ydro
work
s al
so e
mp
loys
a fi
eld
inst
alle
r w
ho
vis
its
each
in
stal
lati
on t
o e
nsu
re e
ach
sep
arat
or
is p
rop
erly
in
stal
led
an
d p
rov
ides
fiel
d i
nst
alla
tion s
ervic
es w
hen
req
uir
ed.
6
In ad
dit
ion
to
th
e st
aff
in th
e co
rpo
rate
off
ice,
H
yd
row
ork
s p
rom
oti
on
is
co
nd
uct
ed b
y it
s
affi
liat
es w
ho
mak
e th
e co
ncr
ete
po
rtio
n o
f th
e st
ruct
ure
an
d w
ho
are
in
volv
ed i
n t
he
reg
ula
r d
ay
to d
ay s
ales
of
dra
inag
e st
ruct
ure
s. S
ales
aff
ilia
tes
are
pri
mar
ily
lo
cate
d i
n C
T (
Un
ited
Co
ncr
ete)
,
MA
(H
anso
n P
ipe
and
Pre
cast
), W
I (W
ausa
u C
on
cret
e), an
d V
A (
Han
son
Pip
e an
d P
reca
st).
Inte
rnal
co
mp
on
ents
of
the
Hy
dro
gu
ard
are
mad
e b
y M
ille
nniu
m P
last
ics
in G
rov
elan
d, M
A.
3.
Tre
atm
ent
Sy
stem
Des
crip
tio
n
Th
e H
yd
row
ork
s H
G s
epar
ato
r is
un
iqu
e si
nce
it
trea
ts b
oth
hig
h a
nd
lo
w f
low
s in
on
e d
evic
e,
bu
t m
ain
tain
s se
par
ate
flo
w p
ath
s fo
r lo
w a
nd
hig
h f
low
s. A
cco
rdin
gly
, h
igh
flo
ws
do
no
t sc
ou
r
ou
t th
e fi
nes
th
at a
re s
ettl
ed i
n t
he
low
flo
w p
ath s
ince
th
ey a
re t
reat
ed i
n a
sep
arat
e ar
ea o
f th
e
dev
ice
as s
ho
wn
in
Fig
ure
1.
Th
e H
G s
epar
ator
con
sist
s o
f th
ree
cham
ber
s:
an i
nn
er c
ham
ber
th
at t
reat
s lo
w o
r n
orm
al f
low
s
a m
idd
le c
ham
ber
th
at t
reat
s h
igh
flo
ws
an o
utl
et c
ham
ber
wh
ere
wat
er i
s dis
char
ged
to
th
e d
ow
nst
ream
sto
rm s
yst
em
Fig
ure
1 H
yd
row
ork
s H
G O
per
ati
on
– P
lan
Vie
w
7
Under
norm
al o
r lo
w f
low
s, w
ater
en
ters
th
e m
idd
lech
amb
er a
nd i
s co
nvey
ed i
nto
the
inner
cham
ber
by
mo
men
tum
. S
ince
th
e in
ner
ch
amb
er i
s off
set
to o
ne
sid
e of
the
stru
cture
th
e w
ater
stri
kes
the
wal
l o
f th
e in
ner
ch
amb
er a
t a
tan
gen
tcr
eati
ng
a v
ort
ex w
ith
in t
he
inner
cham
ber
. T
he
vo
rtex
moti
on
fo
rces
so
lid
s an
d f
loat
able
s to
the
mid
dle
of
the
inn
er c
ham
ber
. T
he
wat
er s
pir
als
do
wn
th
e in
ner
ch
amb
er t
o t
he
ou
tlet
of
the
inner
ch
amb
er w
hic
h i
s lo
cate
d b
elo
w t
he
inle
t o
f th
e
inn
er c
ham
ber
an
d a
dja
cen
t to
the
wal
l o
f th
e st
ruct
ure
but
abo
ve
the
flo
or
of
the
stru
ctu
re.
Flo
atab
les
are
trap
ped
sin
ce t
he
ou
tlet
of
the
inn
er c
ham
ber
is
sub
mer
ged
. T
he
des
ign
max
imiz
es
the
rete
nti
on o
f se
ttle
able
so
lid
s si
nce
so
lid
s ar
e fo
rced
to
the
cen
ter
of
the
inn
er c
ham
ber
by
th
e
vo
rtex
moti
on
of
wat
er w
hil
e th
e outl
et o
f th
e in
ner
cham
ber
dra
ws
wat
er f
rom
the
wal
l of
the
inn
er c
ham
ber
.
Th
e w
ater
lea
vin
g t
he
inn
er c
ham
ber
co
nti
nues
in
to t
he
mid
dle
cham
ber
, ag
ain a
t a
tangen
t to
the
wal
l o
f th
e st
ruct
ure
. T
he
wat
er i
s th
en c
on
vey
ed t
hro
ug
h a
n o
utl
et b
affl
e w
all
(hig
h a
nd
lo
w
baf
fle)
. T
his
en
han
ces
the
coll
ecti
on
of
any
flo
atab
les
or
susp
end
ed s
oli
ds
no
t re
mo
ved
by
th
e
inn
er
cham
ber
. W
ater
fl
ow
ing
th
rou
gh
th
e b
affl
es
then
en
ters
th
e o
utl
et
cham
ber
an
d
is
dis
char
ged
in
to t
he
do
wn
stre
am s
torm
dra
in.
Du
rin
g h
igh
flo
ws,
th
e fl
ow
rat
e en
teri
ng
th
e in
ner
ch
amb
er i
s re
stri
cted
by
th
e si
ze o
f th
e in
let
op
enin
g t
o t
he
inn
er c
ham
ber
. T
his
res
tric
tio
n o
f fl
ow
rat
e in
to t
he
inn
er c
ham
ber
min
imiz
es t
he
pote
nti
al f
or
the
scour
and r
e-su
spen
sion o
f so
lids
from
the
inner
ch
amb
er d
uri
ng
per
iod
s o
f h
igh
flo
w.
Th
is i
s im
po
rtan
t si
nce
fin
es,
wh
ich
are
typ
ical
ly c
on
sid
ered
hig
hly
po
llu
ted
, ar
e co
nv
eyed
du
rin
g l
ow
/no
rmal
flo
ws.
Th
e ex
cess
flo
w i
s co
nv
eyed
dir
ectl
y i
nto
th
e m
idd
le c
ham
ber
wh
ere
it
rece
ives
tre
atm
ent
for
flo
atab
les
and
su
spen
ded
soli
ds
via
th
e b
affl
e sy
stem
. T
his
tre
atm
ent
of
the
hig
her
fl
ow
ra
tes
is im
po
rtan
t si
nce
tr
ash
an
d hea
vie
r so
lids
are
typ
ical
ly co
nvey
ed duri
ng
per
iods
of
hig
her
flo
w r
ates
. T
he
Hydro
work
s H
G s
epar
ator
is u
niq
ue
sin
ce i
t in
corp
ora
tes
low
and
hig
h f
low
tre
atm
ent
in o
ne
dev
ice
wh
ile
mai
nta
inin
g s
epar
ate
low
and h
igh f
low
pat
hs
to
pre
ven
t th
e sc
ou
r an
d r
e-su
spen
sio
n o
f fi
nes
.
Fig
ure
2 i
s a
pro
file
vie
w o
f th
e H
G s
epar
ator
show
ing t
he
flow
pat
tern
s fo
r lo
w a
nd h
igh f
low
s. 8
Fig
ure
2 H
yd
row
ork
s H
G O
per
ati
on
– P
rofi
le V
iew
Th
e in
ner
ch
amb
er
and
o
utl
et
baf
fle
wal
l ar
e d
esig
ned
n
ot
to
be
ov
erto
pp
ed.
In
shal
low
app
lica
tio
ns
wh
ere
the
pip
e is
clo
se t
o t
he
gro
un
d e
lev
atio
n a
nd
th
e d
rain
age
syst
em i
s su
bje
ct t
o
full
pip
e fl
ow
s/su
rch
arg
ing
, th
e to
p o
f th
e o
utl
et b
affl
e w
ill
act
as a
n e
mer
gen
cy o
ver
flow
if
ther
e
is e
xce
ss h
ead
in
th
e u
nit
du
e to
su
rch
arg
ing
or
an o
bst
ruct
ion
in
th
e d
evic
e it
self
. A
ny
ov
erfl
ow
wil
l re
sult
in
th
e lo
ss o
f fl
oat
able
s. I
n t
hes
e si
tuat
ion
s an
ex
tern
al u
pst
ream
by
-pas
s ar
ou
nd
th
e
stru
ctu
re c
an b
e im
ple
men
ted
. H
yd
row
ork
s sh
ou
ld b
e ca
lled
fo
r d
esig
n a
ssis
tan
ce i
n c
ases
wh
ere
surc
har
gin
g a
nd
/or
hig
h v
elo
citi
es/h
ead
lo
sses
are
exp
ecte
d i
n t
he
dra
inag
e sy
stem
co
nfl
uen
t to
the
sep
arat
or.
4.
Tec
hn
ica
l P
erfo
rma
nce
Cla
im
Cla
im –
The
Hydro
work
s H
G 6
sep
arat
or,
at
a tr
eatm
ent
flo
w r
ate
of
1.8
cfs
(8
08
gp
m,
28
.6
gp
m/f
t2),
has
bee
n s
ho
wn
by
mas
s b
alan
ce t
esti
ng
to
hav
e a
60
.5%
so
lid
s re
mo
val
eff
icie
ncy
(as
per
th
e N
JDE
P m
eth
od
olo
gy
fo
r ca
lcu
lati
on
of
trea
tmen
t ef
fici
ency
) u
sin
g N
JDE
P s
pec
ifie
d
mat
eria
l w
ith
an
av
erag
e d
50 p
arti
cle
size
of
70
mic
ron
s, i
nfl
uen
t co
nce
ntr
atio
n o
f 200 m
g/L
and
0%
in
itia
l se
dim
ent
load
ing
in
lab
ora
tory
stu
die
s u
sin
g s
imula
ted
sto
rmw
ater
.
9
5.
Tre
atm
ent
Sy
stem
Per
form
an
ce
In l
ate
20
08
, u
nd
er a
co
ntr
act
fro
m H
yd
row
ork
s, L
LC
(H
yd
row
ork
s),
ver
ific
atio
n t
esti
ng
of
a 6
-
foo
t d
iam
eter
H
yd
rog
uar
d H
G 6
h
yd
rod
yn
amic
se
par
ator
was
co
nd
uct
ed at
A
lden
R
esea
rch
Lab
ora
tory
, In
c. (
Ald
en),
Ho
lden
, M
assa
chu
sett
s.
Tes
tin
g w
as c
on
du
cted
in
th
ree
ph
ases
: P
has
e
1
eval
uat
ed
re-e
ntr
ainm
ent
condit
ions,
P
has
e 2
mea
sure
d
hea
d
loss
v
alu
es
and
esta
bli
shed
hy
dra
uli
c ch
arac
teri
stic
cu
rves
, an
d P
has
e 3
det
erm
ined
th
e se
dim
ent
rem
oval
eff
icie
nci
es u
sing
a m
od
ifie
d m
ass
bal
ance
m
eth
od
. P
has
es 1
an
d 3 uti
lize
d th
e N
ew Je
rsey
D
epar
tmen
t of
En
vir
on
men
tal
Pro
tect
ion
(N
JDE
P)
spec
ifie
d
pro
toco
l se
dim
ent,
w
ith
a
PS
D
of
1
to
10
00
mic
rons
and a
sp
ecif
ic g
ravit
y o
f 2.6
5.
In a
ddit
ion,
the
wei
gh
ted
tre
atm
ent
effi
cien
cy d
eter
min
ed
in P
has
e 3
was
cal
cula
ted
bas
ed o
n N
JDE
P w
eight
fact
ors
.
5.1
La
bo
rato
ry T
esti
ng
Th
e H
G 6
tes
t u
nit
is
a ci
rcula
r se
par
atin
g d
evic
e w
ith
in
tern
al s
tru
cture
s th
at d
ivid
e it
into
th
ree
cham
ber
s.
Th
e u
nit
co
nta
ins
14
-inch
infl
uen
t an
d e
fflu
ent
pip
es o
rien
ted o
n-c
ente
r, w
ith a
n
infl
uen
t in
ver
t el
evat
ion
o
f 7
3
inch
es
abo
ve
the
wet
ted
fl
oo
r an
d
an
effl
uen
t in
ver
t o
f
app
rox
imat
ely
72
in
ches
. B
oth
pip
es w
ere
ori
ente
d i
n t
he
test
lo
op
wit
h 0
.5%
slo
pes
. T
he
inner
cham
ber
is
48
in
ches
in
dia
met
er a
nd h
as a
22-i
nch
wid
e by 1
0.5
-inch
hig
h r
ecta
ngula
r op
enin
g
wit
h a
n i
nv
ert
elev
atio
n o
f 7
1.0
in
ches
. T
he
op
enin
g i
s al
ign
ed o
n-c
ente
r w
ith
th
e in
flu
ent
pip
e.
Th
e in
ner
ch
amb
er a
lso
co
nta
ins
a 3
6-i
nch
wid
e b
y 9
-inch
hig
h r
ecta
ngula
r op
enin
g w
ith a
n
inv
ert
elev
atio
n o
f 3
6 i
nch
es,
wh
ich a
llo
ws
flo
w t
o p
ass
fro
m t
he
inn
er c
ham
ber
to
th
e m
idd
le
cham
ber
. A
tw
o-p
iece
(up
per
an
d l
ow
er)
ou
tlet
baf
fle
wal
l se
par
ates
the
mid
dle
ch
amb
er f
rom
the
ou
ter
cham
ber
. T
he
low
er w
all
exte
nd
s fr
om
the
floor
to a
n e
levat
ion o
f 42 i
nch
es.
A 1
5-
inch
hig
h o
pen
ing
sep
arat
es t
he
low
er a
nd
up
per
wal
ls a
nd a
llow
s fl
ow
to p
ass
from
the
mid
dle
cham
ber
in
to t
he
ou
ter
cham
ber
an
d t
hen
ou
t th
e ef
flu
ent
pip
e. F
igu
re A
.1 i
n A
pp
end
ix A
sh
ow
s
a la
yo
ut
dra
win
g o
f th
e H
G 6
tes
t u
nit
.
5.1
.1T
est
Faci
lity
Des
crip
tion
Fig
ure
A.2
sh
ow
s th
e cl
ose
d t
est
loo
p,
loca
ted
in
Ald
en’s
tes
t fa
cili
ty,
wh
ich
was
use
d t
o t
est
the
HG
6 s
epar
ato
r.
Wat
er w
as s
up
pli
ed t
o t
he
unit
wit
h e
ither
a 2
0H
P o
r 5
0H
P p
um
p (
flo
w c
apac
ity
of
app
roxim
atel
y 9
cfs)
, w
hic
h d
raw
wat
er f
rom
a 5
0,0
00-g
allo
n s
upp
ly s
um
p.
One
of
five
(5)
cali
bra
ted
flo
w m
eter
s (2
, 4
, 6
, 8
, an
d 1
2-i
nch
), c
on
nec
ted
to
a m
anif
old
, ca
rrie
d t
he
test
flo
w t
o a
sect
ion
o
f 1
2-i
nch
p
ipin
g,
90
-deg
ree
elb
ow
, 1
2-i
nch
b
y 14-i
nch
ex
pan
sion an
d 12 fe
et (1
0
dia
met
ers)
o
f 1
4-i
nch
in
flu
ent
pip
e.
W
ater
th
en
pas
sed
th
rou
gh
th
e te
st
un
it
and
1
4-i
nch
dia
met
er e
fflu
ent
pip
e to
ret
urn
to t
he
lab
ora
tory
su
mp
. T
he
effl
uen
t p
ipe
con
tain
ed a
n i
sok
inet
ic
sam
pli
ng
-tub
e ar
ray
, lo
cate
d a
ppro
xim
atel
y 3
fee
t d
ow
nst
ream
of
the
test
unit
, to
co
llec
t th
e
effl
uen
t se
dim
ent
con
cen
trat
ion
an
d P
SD
sa
mp
les
duri
ng re
-entr
ainm
ent
test
ing.
T
he
arra
y
con
sist
ed
of
two
(2
) v
erti
call
y
adju
stab
lesa
mp
lin
g
tub
es
(wat
er
lev
el
dep
end
ent)
, ea
ch
conta
inin
g a
flo
w-c
ontr
ol
shut-
off
val
ve.
S
edim
ent
was
inje
cted
into
the
cro
wn
of
the
infl
uen
t
pip
e th
rou
gh
a v
erti
cal
pip
e co
nn
ecte
d t
o a
tee
lo
cate
d a
pp
rox
imat
ely
2 f
eet
up
stre
am o
f th
e te
st
un
it.
10
5.1
.2In
stru
men
tati
on
an
d M
easu
rin
g T
ech
niq
ues
Flo
w
Th
e in
flo
w t
o t
he
test
un
it w
as m
easu
red
usi
ng
on
e o
f fi
ve
(5)
cali
bra
ted
flo
w m
eter
s. E
ach
met
er w
as f
abri
cate
d p
er A
SM
E g
uid
elin
es a
nd
cal
ibra
ted
in
Ald
en’s
Cal
ibra
tio
n D
epar
tmen
t
pri
or
to t
he
star
t o
f te
stin
g. F
low
s w
ere
set
wit
h a
bu
tter
fly
val
ve
and
the
dif
fere
nti
al h
ead
fro
m
the
met
er w
as m
easu
red
usi
ng
a R
ose
mo
un
t 0
to
25
0-i
nch
Dif
fere
nti
al P
ress
ure
(D
P)
cell
, al
so
cali
bra
ted
at
Ald
en p
rio
r to
tes
tin
g. T
he
test
flo
w w
as a
ver
aged
and r
ecord
ed a
pp
roxim
atel
y
ever
y 9
sec
on
ds
thro
ug
ho
ut
the
dura
tio
n o
f th
e te
st u
sin
g a
co
mp
ute
rize
d d
ata
acq
uis
itio
n (
DA
)
pro
gra
m. T
he
accu
racy
of
the
flo
w m
easu
rem
ent
is e
stim
ated
at
2%
.
Tem
per
atu
re
Wat
er t
emper
ature
mea
sure
men
ts w
ith
in t
he
sum
p w
ere
ob
tain
ed u
sing
a c
alib
rate
d O
meg
a
DP
41
tem
per
atu
re p
rob
e an
d r
ead
ou
t d
evic
e.
The
cali
bra
tio
n w
as p
erfo
rmed
at
the
lab
ora
tory
pri
or
to t
esti
ng
. T
he
tem
per
atu
re r
ead
ing
was
en
tere
d i
nto
th
e D
A p
rog
ram
at
the
star
t o
f ea
ch
test
fo
r u
se i
n t
he
flo
w m
easu
rem
ent
calc
ula
tio
ns.
Pre
ssure
Hea
d
Th
e p
ress
ure
hea
d r
ead
ing
s re
cord
ed d
uri
ng
Phas
e 2
tes
tin
g w
ere
mea
sure
d u
sin
g a
Ro
sem
ou
nt
0 t
o 6
0-i
nch
DP
cel
l.
Th
e p
ress
ure
cel
l w
as c
alib
rate
d a
t A
lden
pri
or
to t
esti
ng
. A
min
imu
m o
f
1-m
inu
te o
f p
ress
ure
dat
a w
as r
eco
rded
fo
r ea
ch p
ress
ure
tap
, u
nd
er s
tead
y-s
tate
flo
w c
on
dit
ion
s,
usi
ng
a c
om
pu
teri
zed
DA
pro
gra
m.
Sed
imen
t In
ject
ion
Duri
ng
Phas
e 3
, N
JCA
T p
roto
col
sed
imen
t w
as i
nje
cted
into
th
e te
st u
nit
(P
SD
of
1 -
1,0
00
mic
ron
s.)
Th
e te
st s
and
was
in
tro
du
ced
into
th
e in
flu
ent
pip
e u
sin
g a
n A
ug
er v
olu
met
ric
scre
w
feed
er,
mod
el V
F-1
. T
he
Au
ger
fee
d s
crew
s use
din
tes
ting
ran
ged
in s
ize
from
0.7
5 t
o 1
inch
,
dep
endin
g o
n t
he
test
flo
w.
Eac
h a
ug
er s
crew
, dri
ven
wit
h a
var
iable
-sp
eed
dri
ve,
was
cal
ibra
ted
wit
h t
he
test
sed
imen
t p
rio
r to
tes
ting
, in
ord
er t
o e
stab
lish
a r
elat
ion
ship
bet
wee
n s
crew
RP
M
and
fee
d r
ate
in m
g/m
inu
te.
Th
e fe
eder
has
a 1
.5 c
ub
ic f
oo
t h
op
per
at
the
up
per
en
d o
f th
e au
ger
to p
rov
ide
a co
nst
ant
sup
ply
of
dry
tes
t sa
nd
.
Sa
mp
le C
oll
ecti
on
As
des
crib
ed i
n S
ecti
on
5.1
.1,
iso
kin
etic
sam
pli
ng
tub
es w
ere
loca
ted
wit
hin
th
e ef
flu
ent
pip
ing
to c
oll
ect
the
sed
imen
t co
nce
ntr
atio
n s
ample
s d
uri
ng P
has
e 1
tes
tin
g.
The
sam
pli
ng
tu
bes
wer
e
0.5
0 a
nd
0.7
5 i
nch
es i
n d
iam
eter
. T
he
tub
e ar
ray
was
ver
tica
lly a
dju
sted
an
d c
alib
rate
d p
rio
r to
test
ing
, to
mat
ch t
he
vel
oci
ties
fo
r ea
ch f
low
co
nd
itio
n.
11
Sa
mp
le C
on
cen
tra
tio
n A
na
lysi
s
Co
nce
ntr
atio
n s
ample
s w
ere
anal
yze
d u
sin
g t
he
Susp
ended
Soli
ds
Conce
ntr
atio
n (
SS
C)
met
ho
d
wh
ich
u
tili
zes
the
enti
re sa
mple
in
th
e an
aly
sis.
T
he
sam
ple
s w
ere
pro
cess
ed at
A
lden
as
des
crib
ed b
elow
.
Co
llec
ted
sa
mple
s w
ere
filt
ered
an
d
anal
yze
d
by
A
lden
in
ac
cord
ance
w
ith
M
eth
od
B
, as
des
crib
ed i
n A
ST
M D
esig
nat
ion
: D
39
77
-97
(R
e-ap
pro
ved
20
02
), “
Sta
nd
ard
Tes
t M
eth
od
s fo
r
Det
erm
inin
g S
edim
ent
Co
nce
ntr
atio
n i
n W
ater
Sam
ple
s”.
Th
e re
qu
ired
sil
ica
san
d u
sed
in
th
e
sed
imen
t te
stin
g d
id n
ot
resu
lt i
n a
ny d
isso
lved
soli
ds
in t
he
sam
ple
s an
d t
her
efo
re,
sim
pli
fied
th
e
AS
TM
tes
tin
g m
eth
od
s fo
r d
eter
min
ing
sed
imen
t co
nce
ntr
atio
n.
Sam
ple
s w
ere
coll
ecte
d i
n g
rad
uat
ed 2
-Lit
er b
eak
ers
wh
ich
wer
e cl
ean
ed,
dri
ed a
nd w
eighed
to
the
nea
rest
0.1
-gra
m,
usi
ng
an
Oh
aus
40
00
g x
0.1
g d
igit
al s
cale
, m
od
el S
CD
-01
0,
pri
or
to
sam
pli
ng
. C
oll
ecte
d sa
mple
s w
ere
also
w
eigh
ed t
o t
he
nea
rest
0.1
-gra
m u
sin
g t
he
Oh
aus
dig
ital
sca
le.
Eac
h c
oll
ecte
d s
ample
was
fil
tere
d t
hro
ug
h a
pre
-rin
sed
Wh
atm
an 9
34
-AH
, 4
7-
mm
, 1
.5-m
icro
n,
gla
ss m
icro
fib
er f
ilte
r p
aper
, usi
ng
a l
abo
rato
ry v
acu
um
-fil
teri
ng
syst
em.
Pri
or
to p
roce
ssin
g,
each
fil
ter
was
rin
sed a
nd
pla
ced
in a
des
ignat
ed d
ish
and
dri
ed i
n a
n O
akto
n
Sta
ble
Tem
p g
rav
ity
co
nv
ecti
on
ov
en,
mo
del
05
01
5-5
9,
at 2
25
deg
rees
F f
or
a m
inim
um
of
2
ho
urs
. E
ach
dri
ed f
ilte
r/d
ish
set
was
th
en w
eig
hed
to
th
e n
eare
st 0
.00
01-g
ram
, u
sin
g a
n A
ND
anal
yti
cal
bal
ance
, m
od
el
ER
-18
2A
.
On
ce
filt
ered
, ea
ch
sam
ple
an
d
dis
h
was
d
ried
at
a
tem
per
atu
re b
etw
een
175
an
d 2
10
deg
rees
F (
bel
ow
bo
ilin
g)
for
20
to
30 m
inu
tes
un
til
vis
ual
ly
dry
. T
he
oven
tem
per
atu
re w
as i
ncr
ease
d t
o 2
25
deg
rees
F a
nd
th
e sa
mp
les
wer
e d
ried
fo
r an
addit
ional
2-½
to 3
hours
. T
he
dry
sam
ple
s an
d d
ishes
wer
e th
en w
eighed
to t
he
nea
rest
0.0
001-
gra
m,
usi
ng
th
e A
ND
bal
ance
. N
et s
edim
ent
wei
gh
t (m
g)
was
det
erm
ined
by
sub
trac
tin
g t
he
dri
ed f
ilte
r w
eig
ht
fro
m t
he
dri
ed s
ample
wei
gh
t an
d m
ult
iply
ing
the
resu
lt b
y 1
,00
0.
Th
e n
et
sam
ple
vo
lum
e, i
n l
iter
s, w
as d
eter
min
ed b
y s
ub
trac
tin
g t
he
bea
ker
an
d n
et s
edim
ent
wei
gh
t fr
om
the
ov
eral
l sa
mple
w
eig
ht
and
d
ivid
ing
b
y 1
,00
0.
Eac
h sa
mple
se
dim
ent
con
cen
trat
ion
, in
mg
/lit
er,
was
det
erm
ined
by
div
idin
g t
he
net
sed
imen
t w
eig
ht
by
th
e n
et s
ample
vo
lum
e.
Th
e
effl
uen
t co
nce
ntr
atio
n f
or
each
flo
w c
on
dit
ion w
as a
dju
sted
fo
r b
ackg
rou
nd
. T
he
bac
kg
rou
nd
sam
ple
s w
ere
coll
ecte
d a
t th
e p
um
p e
fflu
ent
and
pro
cess
ed a
s des
crib
ed a
bove.
Tes
t S
edim
ent
Mix
an
d P
art
icle
Siz
e D
istr
ibuti
on
NJ#
00N
, O
K1
10
an
d M
in-U
-Sil
40
sil
ica
san
d,
avai
lable
fro
m U
S S
ilic
a, w
as u
sed
to
pro
du
ce
the
test
sed
imen
t as
req
uir
ed b
y t
he
NJD
EP
tes
tin
g p
roto
col.
T
able
3 s
ho
ws
the
theo
reti
cal
PS
D
of
each
gra
de
of
san
d,
as w
ell
as t
he
mix
rat
ios
and
res
ult
ing
per
centa
ges
. R
and
om
dry
sam
ple
s
wer
e an
aly
zed
for
PS
D w
ith
a r
esult
ing a
ver
age
d50 o
f ap
pro
xim
atel
y 7
0 m
icro
ns
wh
ich
, as
sho
wn
on
Fig
ure
3,
mat
ches
th
e N
JDE
P e
stim
ated
d50 o
f 6
7 m
icro
ns.
12
Ta
ble
3 T
est
Sed
imen
t M
ix U
sin
g C
om
mer
ciall
y A
va
ila
ble
US
Sil
ica
Sa
nd
Ra
ng
eT
arg
et
Me
sh
Mic
rons
NJ #
00N
OK
-11
0M
in-U
-Sil 4
0%
%%
To
tal
NJC
AT
11%
46
%4
3%
20
85
0
50
0-1
000
5%
30
60
04
55
.05.0
40
42
55
25
.7
25
0-5
00
5%
50
30
03
0.3
6.1
70
21
2
10
015
01
0.5
10
0-2
50
30%
12
012
51
56
.9
14
010
64
822
.12
9.4
17
08
82
411
.0
50
-10
01
5%
20
07
59
.74
.5
27
05
31
.90
.91
6.4
8-5
02
5%
60
25
.82
5.8
2-8
15%
28
12
.01
2.0
1-2
5%
12
5.2
5.2
To
tal
100
99.6
100
99
.8
Fig
ure
3 T
est
Sed
imen
t M
ix P
SD
13
Ma
ss B
ala
nce
An
aly
sis
For
test
s co
mp
lete
d d
uri
ng P
has
e 3,
a m
odif
ied m
ass
bal
ance
met
ho
d w
as u
sed
to
det
erm
ine
sed
imen
t re
mo
val
eff
icie
ncy
. A
tru
e m
ass
bal
ance
tes
t ac
cou
nts
fo
r al
l th
e m
ass
wit
hin
a s
yst
em,
incl
ud
ing
to
tal
infl
uen
t, a
nd
cap
ture
d a
nd
eff
luen
t q
uan
titi
es.
Ho
wev
er,
wit
h f
low
s ra
ng
ing
fro
m
0.4
5 t
o 2
.25
cfs
, it
is
extr
emel
y d
iffi
cult
an
d c
onse
qu
entl
y,
exp
ensi
ve
to c
aptu
re t
he
fin
e ef
flu
ent
sed
imen
t w
ith
ou
t co
mpro
mis
ing
th
e in
teg
rity
of
the
test
. T
her
efo
re,
mo
dif
ied
mas
s b
alan
ce t
ests
,
in w
hic
h t
he
infl
uen
t an
d c
aptu
red
sed
imen
t is
acc
ou
nte
d f
or,
wer
e p
erfo
rmed
on
th
e H
G 6
un
it.
Th
e w
eig
ht
of
inje
cted
sed
imen
t w
as d
eter
min
ed b
y w
eig
hin
g t
he
load
ed s
crew
fee
der
, w
hic
h
was
mo
un
ted o
n a
hy
dra
uli
c ta
ble
, b
efo
re a
nd
aft
er t
esti
ng
. T
he
scal
e u
sed
was
a 0
-50
0 l
b
Oh
aus®
C
ham
p
SQ
d
igit
al
scal
e,
mo
del
C
Q2
50
-XL
11
W,
equ
ipp
ed
wit
h
a 0
.05
re
solu
tio
n
CW
11
dig
ital
co
ntr
oll
er. T
his
pro
vid
ed t
he
tota
l m
ass
of
sed
imen
tin
tro
du
ced
in
to t
he
test
un
it.
Aft
er t
he
com
ple
tio
n o
f ea
ch t
est,
wat
er w
as d
ecan
ted
fro
m t
he
test
unit
by
mea
ns
of
a g
rav
ity
sip
ho
n.
Th
e ca
ptu
red
sed
imen
t an
d a
ny
rem
ain
ing
wat
er w
ere
then
coll
ecte
d f
rom
the
test
unit
usi
ng
a p
re-c
lean
ed w
et v
acu
um
. T
he
coll
ecte
dse
dim
ent
was
pla
ced
in p
re-w
eig
hed
tra
ys
and
dri
ed i
n a
Mo
der
n L
abo
rato
ry E
qu
ipm
ent®
ov
en,
mo
del
15
5-S
S,
for
app
rox
imat
ely
24
ho
urs
.
The
dri
ed
sedim
ent
was
th
en
wei
ghed
w
ith
the
Oh
aus
scal
e an
d
the
cap
ture
d
wei
gh
t w
as
calc
ula
ted b
y s
ub
trac
ting
th
e tr
ay w
eig
ht
fro
m t
he
gro
ss w
eight.
T
he
rem
ov
al e
ffic
ien
cy f
or
each
flow
condit
ion w
as c
alcu
late
d u
sin
g t
he
foll
ow
ing e
qu
atio
n:
5.2
Tes
t P
roce
du
res
Th
e te
st p
roce
du
res
for
the
HG
6 u
nit
, d
evel
op
ed b
y H
yd
row
ork
s in
co
ord
inat
ion
wit
h A
lden
,
wer
e not
consi
sten
t w
ith N
JDE
P p
roto
cols
. H
ow
ever
, th
e p
arti
al m
ass
bal
ance
met
ho
d e
mp
loy
ed
is eq
uiv
alen
t to
th
e S
SC
in
flu
ent
and
ef
flu
ent
met
ho
d ty
pic
ally
em
plo
yed
. T
he
test
ing
w
as
con
du
cted
in
th
ree
ph
ases
as
des
crib
ed b
elo
w.
5.2
.1P
hase
1 –
Re-
entr
ain
men
t an
d W
ash
ou
t
Re-
entr
ain
men
t te
sts
wer
e p
erfo
rmed
at
fl
ow
s ra
ngin
g
from
0.4
to
2.0
cf
s,
wit
h
sedim
ent
load
ings
of
100%
(9.3
ft3
) an
d 5
0%
(4.6
ft3
) of
the
unit
’s c
apac
ity (
as s
tate
d b
y H
yd
row
ork
s).
It
was
est
imat
ed (
by
Hy
dro
wo
rks)
th
at t
he
inn
er c
ham
ber
ret
ain
s ap
pro
xim
atel
y 8
0%
of
sed
imen
t
cap
ture
d b
y t
he
unit
and
th
e re
mai
nin
g 2
0%
is
reta
ined
in
th
e m
idd
le c
ham
ber
. T
her
efo
re,
an
80/2
0 s
pli
t w
as u
sed f
or
the
sed
imen
t lo
adin
g.
Th
e ar
ea o
f th
e in
ner
ch
amb
er i
s 1
2.6
ft2
an
d t
he
area
of
the
mid
dle
ch
amb
er i
s 8
.8 f
t2.
Fo
r th
e 10
0%
tes
ts,
7 i
nch
es o
f se
dim
ent
was
lo
aded
in
the
inn
er c
ham
ber
an
d 2
.5 i
nch
es i
n t
he
mid
dle
ch
amb
er.
Fo
r th
e 5
0%
tes
ts,
3.5
inch
es o
f se
dim
ent
was
lo
aded
in
th
e in
ner
ch
amb
er a
nd
1.2
5 i
nch
es i
n t
he
mid
dle
ch
amb
er.
Tw
o r
e-en
trai
nm
ent
test
s w
ere
per
form
ed a
t 1
00
% a
nd
50
% l
oad
ing
wit
h N
JCA
T m
ix (
1 t
o 1
,00
0 m
icro
ns)
.
14
Th
e u
nit
was
slo
wly
fil
led
to
th
e in
ver
t o
f th
e ef
flu
ent
pip
e.
Th
e sh
ape
of
the
sed
imen
t b
ed w
as
esta
bli
shed
by
in
crem
enta
lly
in
crea
sin
g t
he
flo
wto
1.2
cfs
, al
low
ing
th
e sy
stem
to
ru
n u
nti
l th
e
effl
uen
t w
as c
lear
or
for
a m
axim
um
du
rati
on
of
on
e h
ou
r.
Th
e sy
stem
rem
ain
ed i
dle
fo
r a
min
imu
m o
f 24 h
ours
pri
or
to t
esti
ng t
o l
et t
he
new
ly e
stab
lish
ed s
edim
ent
bed
set
tle.
Tes
ting
was
co
nd
uct
ed b
y i
ncr
emen
tall
y i
ncr
easi
ng
th
e fl
ow
of
clea
n w
ater
(n
o i
nfl
uen
t se
dim
ent)
in
to
the
un
it u
nd
er s
tead
y-s
tate
co
nd
itio
ns,
whil
e co
nti
nuousl
y o
bta
inin
g f
low
dat
a.
Eff
luen
t sa
mple
s,
for
SS
C a
nd
PS
D a
nal
yse
s, w
ere
ob
tain
ed a
t th
e ta
rget
ed f
low
s (0
.4,
0.8
, 1
.2,
1.6
an
d 2
.0 c
fs.)
A
seri
es o
f fo
ur
(4)
sam
ple
s w
ere
coll
ecte
d e
ver
y 5
min
ute
s at
eac
h s
tead
y-s
tate
tar
get
flo
w,
to
allo
w i
nsi
ght
into
tre
nds
and
/or
ano
mal
ies
of
sed
imen
t m
ov
emen
t.
5.2
.2P
ha
se 2
– H
yd
rau
lic
Ca
pa
city
an
d C
ha
ract
eris
tics
Th
e u
nit
w
as te
sted
w
ith
ou
t se
dim
ent
to d
eter
min
e it
s h
yd
rau
lic
char
acte
rist
ics.
F
low
an
d
pre
ssu
re h
ead
mea
sure
men
ts a
cross
th
e u
nit
wer
e re
cord
ed f
or
16
co
nd
itio
ns.
E
ach
tes
t fl
ow
was
set
and
all
ow
ed t
o r
each
ste
ady
sta
te,
at w
hic
h t
ime
a m
inim
um
of
1 m
inute
of
flo
w a
nd
pre
ssu
re
dat
a w
ere
reco
rded
an
d a
ver
aged
fo
r ea
ch p
ress
ure
tap
loca
tio
n.
Ob
serv
atio
ns
wer
e d
ocu
men
ted
thro
ug
ho
ut
the
test
, in
clu
din
g co
ndit
ion
s in
th
ein
ner
, m
idd
le an
d o
ute
r ch
amb
ers
(inte
rnal
mea
sure
men
ts)
and
wat
er e
lev
atio
ns
in t
he
infl
uen
t an
d e
fflu
ent
pip
es (
syst
emm
easu
rem
ents
).
Pre
ssu
re h
ead
mea
sure
men
ts w
ere
reco
rded
at
5 l
oca
tio
ns
(see
Fig
ure
A.3
): a
pp
rox
imat
ely
on
e
pip
e d
iam
eter
up
stre
am o
f th
e te
st u
nit
(T
ap A
), a
lon
g t
he
wal
l in
th
e in
ner
ch
amb
er (
Tap
B),
alo
ng
th
e w
all
in t
he
mid
dle
ch
amb
er (
Tap
C),
alo
ng t
he
wal
l in
th
e o
ute
r ch
amb
er (
Tap
D),
an
d
on
e p
ipe
dia
met
er d
ow
nst
ream
of
the
test
un
it (
Tap
E).
T
he
dis
char
ge
and
lo
ss c
oef
fici
ents
(C
d
and
K)
wer
e ca
lcu
late
d f
or
bo
th t
he
inte
rnal
an
d s
yst
em l
oss
es.
5.2
.3P
ha
se 3
– S
edim
ent
Rem
oval
Eff
icie
ncy
Tes
tin
g
Th
e te
st u
nit
was
th
oro
ug
hly
cle
aned
pri
or
to t
he
star
t o
f ea
ch t
est.
T
he
test
flo
w w
as s
et a
nd
allo
wed
to
rea
ch s
tead
y s
tate
. T
he
test
sed
imen
tw
as i
nje
cted
in
to t
he
infl
uen
t li
ne
at a
tar
get
con
cen
trat
ion
of
20
0 m
g/L
fo
r d
ura
tio
n o
f ti
me
suff
icie
nt
to i
ntr
od
uce
ap
pro
xim
atel
y t
wen
ty (
20
)
po
un
ds
of
sed
imen
t in
to t
he
un
it.
Th
e se
dim
ent
inje
ctio
n w
as s
top
ped
an
d 3
sy
stem
vo
lum
es o
f
wat
er w
ere
allo
wed
to
pas
s th
rou
gh
th
e sy
stem
pri
or
to t
he
term
inat
ion
of
the
test
. T
he
un
it w
as
dra
ined
an
d c
lean
ed,
and t
he
rem
ov
al e
ffic
ien
cy d
eter
min
ed u
tili
zin
g t
he
mo
dif
ied
mas
s b
alan
ce
met
ho
do
log
y d
escr
ibed
in
Sec
tio
n 5
.1.2
.
It w
as o
bse
rved
th
at e
ach
co
llec
tio
n t
ray
co
nta
ined
bo
th s
ettl
ed a
nd
su
spen
ded
sed
imen
t p
arti
cles
wh
en p
lace
d i
n t
he
dry
ing
ov
en.
Aft
er f
ull
dry
ing
of
the
sed
imen
t w
as c
om
ple
te,
an e
ncr
ust
ed
top
lay
er w
as p
rese
nt
in e
ach t
ray,
whic
h w
as t
he
resu
lt o
f th
e fi
ne
par
ticl
es b
ondin
g t
oget
her
du
rin
g
the
dry
ing
p
roce
ss.
T
his
b
on
din
g
of
par
ticl
es
did
n
ot
affe
ct
the
resu
ltin
g
rem
ov
al
effi
cien
cies
. H
ow
ever
, th
e re
port
ed P
SD
res
ult
s sh
ow
that
th
e par
ticl
es s
till
po
sses
sed
so
me
coh
esiv
e q
ual
itie
s, a
s th
e sm
alle
st m
easu
red
par
ticl
e si
zes
do n
ot
corr
elat
e w
ell
wit
h t
he
resu
ltin
g
rem
ov
al e
ffic
ien
cies
. P
assi
ng
th
e d
ried
sed
imen
t th
rou
gh
fin
e sc
reen
s an
d p
rep
arin
g t
he
sam
ple
s
as w
et s
amp
les
pri
or
to s
hip
pin
g m
ay h
ave
corr
ecte
d t
his
pro
ble
m.
15
5.3
Ver
ific
ati
on
Pro
ced
ure
s
All
th
e dat
a p
rovid
ed to
N
JCA
T w
ere
revie
wed
to
fu
lly under
stan
d th
e ca
pab
ilit
ies
of
the
Hy
dro
wo
rks
HG
6 s
epar
ato
r.
To
ver
ify
Hy
dro
wo
rks’
cla
im,
the
Ald
en l
abo
rato
ry t
est
pro
ced
ure
s
and
dat
a w
ere
rev
iew
ed a
nd
co
mpar
ed t
o t
he
NJD
EP
TS
S l
abo
rato
ry t
esti
ng p
roce
dure
.
5.3
.1L
ab
ora
tory
Tes
tin
g R
esu
lts
Re-
entr
ain
men
t an
d W
ash
ou
t
Re-
entr
ain
men
t te
sts
wer
e p
erfo
rmed
at
flo
ws
rangin
g f
rom
0.4
to 2
.0 c
fs,
wit
h i
nit
ial
sedim
ent
load
ing
s o
f 1
00
% (
9.3
ft3
) an
d 5
0%
(4
.6 f
t3)
of
the
un
it’s
cap
acit
y (
as s
tate
d b
y H
yd
row
ork
s).
Th
e se
dim
ent
bed
s w
ere
pre
par
ed w
ith
a v
ary
ing
dep
osi
tion
pro
file
, as
des
crib
ed i
n S
ecti
on
5.2
.1,
bas
ed o
n f
ield
ob
serv
atio
ns
sup
pli
ed b
y H
yd
row
ork
s.
Eac
h t
est
was
co
nd
uct
ed b
y i
ncr
emen
tall
y
incr
easi
ng
th
e fl
ow
wh
ile
coll
ecti
ng
effl
uen
t sa
mp
les.
A
ser
ies
of
fou
r (4
) ef
flu
ent
sam
ple
s w
ere
coll
ecte
d f
or
SS
C a
nal
ysi
s an
d o
ne
for
PS
D a
nal
ysi
s, a
t th
e st
eady-s
tate
tar
get
flo
ws
of
0.4
, 0
.8,
1.2
, 1.6
and 2
.0 c
fs.
Fif
ty p
erce
nt
(50
%)
load
ing
Mea
sure
d s
edim
ent
con
cen
trat
ions
(SS
C)
adju
sted
for
bac
kgro
und c
once
ntr
atio
ns
incr
ease
d f
rom
2.2
mg/L
at
0.4
cfs
, to
36.1
mg/L
at
2.0
cfs
. B
ackgro
und s
amp
le c
once
ntr
atio
ns
incr
ease
d f
rom
4.4
1 m
g/L
at
the
beg
innin
g (
~5 m
in)
of
the
re-e
ntr
ainm
ent
and w
asho
ut
test
ing
to
13
.7 m
g/L
at
the
end o
f th
e 100 m
inute
tes
t p
erio
d.
Eff
luen
t co
nce
ntr
atio
ns
wer
e lo
w (
<2
.5 m
g/L
) up
to
0.8
0
cfs
and
in
crea
sed
ste
adil
y t
her
eaft
er w
ith
in
crea
sin
g f
low
rat
e as
sh
ow
n i
n F
igu
re 4
. T
he
effl
uen
t
PS
D d
ata
ind
icat
ed t
hat
, at
th
e m
axim
um
flo
w o
f 2
.0 c
fs,
the
un
it w
as a
ble
to
ret
ain p
arti
cles
over
25 m
icro
ns
(d9
5).
On
e h
un
dre
d p
erce
nt
(10
0%
) lo
adin
g
Mea
sure
d s
edim
ent
con
cen
trat
ions
(SS
C)
adju
sted
for
bac
kgro
und c
once
ntr
atio
ns
incr
ease
d f
rom
4.3
mg/L
at
0.4
cfs
, to
44
.1 m
g/L
at
1.6
cfs
, th
en d
ecre
ased
to
41
.5 m
g/L
at
2.0
cfs
. B
ack
gro
un
d
sam
ple
co
nce
ntr
atio
ns
incr
ease
d f
rom
1.7
mg/L
at
the
beg
innin
g (
~5 m
in)
of
the
re-e
ntr
ainm
ent
and
w
ash
ou
t te
stin
g
to
18
.9
mg/L
at
th
e en
d
of
the
10
0
min
ute
te
st
per
iod
. E
fflu
ent
con
cen
trat
ion
s w
ere
low
(<
5.5
m
g/L
) up
to
0
.80
cf
s an
d in
crea
sed
st
ead
ily
th
erea
fter
w
ith
incr
easi
ng f
low
rat
e to
1.6
cfs
, b
efo
re s
lig
htl
y d
ecre
asin
g.
The
effl
uen
t P
SD
dat
a in
dic
ated
that
,
at t
he
max
imu
m f
low
of
2.0
cfs
, th
e u
nit
was
ab
le t
o r
etai
n p
arti
cles
over
30 m
icro
ns
(d9
5).
16
0
10
20
30
40
50
60 0
.00
20
.00
40
.00
60
.00
80
.00
10
0.0
0
Sample Concentration(mg/l)
Tim
e (M
inu
tes)
HG
6 R
e-e
ntr
ain
me
nt
Te
st
50
% S
ed
ime
nt
Lo
ad
ing
(NJ
CA
TM
ix)
Eff
lue
nt
Co
nc
en
tra
tio
ns
0.4
0 c
fs
0.8
0 c
fs
1.2
1 c
fs
1.6
1 c
fs
2.0
0 c
fs
Se
rie
s1
Fig
ure
4 R
e-en
tra
inm
ent
Eff
luen
t S
am
ple
Co
nce
ntr
ati
on
s a
t 5
0%
Lo
ad
ing
Ca
pa
city
Hy
dra
uli
c C
ap
aci
ty
Flo
w (
gp
m)
and
wat
er l
evel
(in
ches
) w
ith
in t
he
un
it w
ere
mea
sure
d f
or
19
flo
ws
ran
gin
g f
rom
0.4
to
7.9
cfs
. T
he
infl
uen
t p
ipe
was
est
imat
ed t
o b
e fl
ow
ing
fu
ll a
t ap
pro
xim
atel
y 3
.3 c
fs.
Th
e
entr
ance
to
th
e ef
flu
ent
pip
e w
as s
ub
mer
ged
at
app
rox
imat
ely
3.3
cfs
, an
d t
he
effl
uen
t pip
e w
as
mea
sure
d t
o b
e fl
ow
ing
fu
ll a
t th
e ta
p a
t ap
pro
xim
atel
y 5
cfs
. T
he
flow
did
not
over
top t
he
baf
fle
wal
ls a
t m
axim
um
flo
w.
Sed
imen
t R
emo
va
l E
ffic
ien
cy
Rem
oval
eff
icie
ncy
tes
ts w
ere
con
du
cted
at
fiv
e (5
) fl
ow
s ra
ngin
g f
rom
0.4
5 t
o 2
.25 c
fs w
ith a
targ
et i
nfl
uen
t se
dim
ent
conce
ntr
atio
n o
f 200 m
g/l
. O
ne
rand
om
sam
ple
was
co
llec
ted
fro
m t
he
cap
ture
d s
edim
ent
du
rin
g e
ach
tes
t fo
r p
arti
cle
size
dis
trib
uti
on
(PS
D)
anal
ysi
s.
Eac
h s
ample
was
an
aly
zed
usi
ng
th
e B
eck
man
Mu
ltis
izer
3 C
ou
lter
Co
un
ter.
It
nee
ds
to b
e n
ote
d t
hat
th
e
smal
lest
mea
sure
d p
arti
cle
size
fo
r al
l te
sts
exce
pt
the
0.7
5 c
fs t
est
(26 m
icro
ns)
do n
ot
corr
elat
e
wit
h t
he
mea
sure
d r
emo
val
eff
icie
ncy
res
ult
s.
This
is
most
lik
ely
du
e to
th
e li
mit
atio
ns
of
the
PS
D a
nal
ysi
s m
eth
od
olo
gy
to
bre
ak d
ow
n t
he
coag
ula
ted p
arti
cles
(ca
use
d b
y t
he
dry
ing
pro
cess
,
as d
escr
ibed
in S
ecti
on 5
.2.3
) to
th
eir
smal
lest
gra
in s
ize.
Sed
imen
t R
emo
val
Eff
icie
ncy
– 2
.25
cfs
Th
e av
erag
e fl
ow
re
cord
ed fo
r th
e en
tire
te
st w
as 10
14
.5 gp
m (2
.26
cf
s),
wit
h a
stan
dar
d
dev
iati
on
(S
D)
of
1.9
6.
Th
e re
cord
ed t
emp
erat
ure
fo
r th
e te
st w
as 6
5.0
deg
rees
F.
Th
e n
et
17
wei
gh
t o
f se
dim
ent
inje
cted
was
21
.7 l
bs.
T
he
net
wei
ght
cap
ture
d w
as 9
.35 l
bs.
T
he
resu
ltin
g
sed
imen
t re
mo
val
eff
icie
ncy
was
43
.1%
. T
he
bac
kgro
und c
once
ntr
atio
ns
taken
at
the
star
t an
d
end
of
the
test
wer
e 5
.31
an
d 1
1.5
5 m
g/L
.
Th
e sm
alle
st c
aptu
red p
arti
cle
mea
sure
d w
as g
reat
er t
han
88
mic
ron
s.
Th
is d
ata
corr
elat
es f
airl
y
wel
l w
ith
th
e m
easu
red
rem
ov
al e
ffic
iency
of
43.1
%,
whic
h h
as a
n e
stim
ated
par
ticl
e si
ze o
f
app
rox
imat
ely
10
0 m
icro
ns.
Sed
imen
t R
emo
val
Eff
icie
ncy
– 1
.88
cfs
The
aver
age
flow
rec
ord
ed f
or
the
enti
re t
est
was
847.7
gp
m (
1.8
9 c
fs),
wit
h a
sta
ndar
d d
evia
tion
(SD
) o
f 3
.48
. T
he
reco
rded
tem
per
atu
re f
or
the
test
was
63
.1 d
egre
es F
. T
he
net
wei
gh
t o
f
sedim
ent
inje
cted
was
24.2
lb
s.
The
net
wei
ght
captu
red
was
11
.70
lb
s.
Th
e re
sult
ing
sed
imen
t
rem
ov
al e
ffic
ien
cy w
as 4
8.3
%.
The
bac
kgro
und c
once
ntr
atio
ns
taken
at
the
star
t an
d e
nd o
f th
e
test
wer
e 1.4
0 a
nd 5
.96 m
g/L
.
Th
e sm
alle
st c
aptu
red
par
ticl
e m
easu
red
was
gre
ater
th
an 8
8 m
icro
ns.
T
his
dat
a sh
ow
s a
larg
er
par
ticl
e si
ze t
han
anti
cip
ated
for
a re
moval
eff
icie
ncy
of
48.3
%,
whic
h h
as a
n e
stim
ated
par
ticl
e
size
of
app
rox
imat
ely
80
mic
ron
s.
Sed
imen
t R
emo
val
Eff
icie
ncy
– 1
.5 c
fs
The
aver
age
flow
rec
ord
ed f
or
the
enti
re t
est
was
677.6
gp
m (
1.5
1 c
fs),
wit
h a
sta
ndar
d d
evia
tion
(SD
) o
f 1
.43
. T
he
reco
rded
tem
per
atu
re f
or
the
test
was
70
.6 d
egre
es F
. T
he
net
wei
gh
t o
f
sedim
ent
inje
cted
was
21.0
lb
s.
The
net
wei
ght
captu
red
was
11
.50
lb
s.
Th
e re
sult
ing
sed
imen
t
rem
ov
al e
ffic
ien
cy w
as 5
4.8
%.
Bac
kg
rou
nd
co
nce
ntr
atio
n s
ample
s w
ere
no
t ta
ken
du
rin
g t
he
test
; h
ow
ever
, b
ack
gro
un
d l
evel
s w
ere
ob
serv
ed t
o b
e m
inim
al.
Th
e sm
alle
st c
aptu
red
par
ticl
e m
easu
red
was
gre
ater
th
an 7
4 m
icro
ns.
T
his
dat
a sh
ow
s a
larg
er
par
ticl
e si
ze t
han
anti
cip
ated
for
a re
moval
eff
icie
ncy
of
54.8
%,
whic
h h
as a
n e
stim
ated
par
ticl
e
size
of
app
rox
imat
ely
60
mic
ron
s.
Sed
imen
t R
emo
val
Eff
icie
ncy
– 0
.75
cfs
The
aver
age
flow
rec
ord
ed f
or
the
enti
re t
est
was
337.6
gp
m (
0.7
5 c
fs),
wit
h a
sta
ndar
d d
evia
tion
(SD
) o
f 1
.04
. T
he
reco
rded
tem
per
atu
re f
or
the
test
was
63
.5 d
egre
es F
. T
he
net
wei
gh
t o
f
sedim
ent
inje
cted
was
26.4
lb
s.
The
net
wei
ght
captu
red
was
16
.90
lb
s.
Th
e re
sult
ing
sed
imen
t
rem
ov
al e
ffic
ien
cy w
as 6
4.0
%.
The
bac
kgro
und c
once
ntr
atio
ns
taken
at
the
star
t an
d e
nd o
f th
e
test
wer
e 0.2
9 a
nd 5
.08 m
g/L
.
Th
e sm
alle
st c
aptu
red p
arti
cle
mea
sure
d w
as g
reat
er t
han
26
mic
ron
s.
Th
is d
ata
corr
elat
es f
airl
y
wel
l w
ith
th
e m
easu
red
rem
ov
al e
ffic
iency
of
64.0
%,
whic
h h
as a
n e
stim
ated
par
ticl
e si
ze o
f
app
rox
imat
ely
25
mic
ron
s.
18
Sed
imen
t R
emo
val
Eff
icie
ncy
– 0
.45
cfs
The
aver
age
flow
rec
ord
ed f
or
the
enti
re t
est
was
203.3
gp
m (
0.4
5 c
fs),
wit
h a
sta
ndar
d d
evia
tion
(SD
) o
f 0
.50
. T
he
reco
rded
tem
per
atu
re f
or
the
test
was
64
.1 d
egre
es F
. T
he
net
wei
gh
t o
f
sedim
ent
inje
cted
was
18.5
lb
s.
The
net
wei
ght
captu
red
was
13
.70
lb
s.
Th
e re
sult
ing
sed
imen
t
rem
ov
al e
ffic
ien
cy w
as 7
4.1
%.
The
bac
kgro
und c
once
ntr
atio
ns
taken
at
the
star
t an
d e
nd o
f th
e
test
wer
e 5.1
3 a
nd 6
.26 m
g/L
.
Th
e sm
alle
st c
aptu
red
par
ticl
e m
easu
red
was
gre
ater
th
an 6
2 m
icro
ns.
T
his
dat
a sh
ow
s a
larg
er
par
ticl
e si
ze t
han
anti
cip
ated
for
a re
moval
eff
icie
ncy
of
74.1
%,
whic
h h
as a
n e
stim
ated
par
ticl
e
size
of
app
rox
imat
ely
12
mic
ron
s.
Sum
mary
Th
e ca
lcu
late
d r
emo
val
eff
icie
nci
es r
ang
ed f
rom
43
.1%
to
74
.1%
fo
r th
e fi
ve
test
s co
nd
uct
ed.
Th
e te
stin
g d
ata
sum
mar
y i
s sh
ow
n i
n T
able
4an
d t
he
rem
ov
al e
ffic
ien
cy c
urv
e is
sh
ow
n o
n
Fig
ure
5.
Tab
le 4
Sed
imen
t R
emoval
Eff
icie
ncy
Tes
tin
g S
um
mary
Mo
dif
ied
ma
ss b
ala
nce
met
ho
d
Ta
rget
Flo
w
(cfs
)
Rec
ord
ed F
low
(cfs
)
Inje
cted
Wt.
(lb
s)
Cap
ture
d W
t.
(lb
s)
Eff
icie
ncy
(%)
2.2
52.2
621.7
9.3
543.1
1.8
81.8
924.2
11.7
48.3
1.5
01.5
121.0
11.5
54.8
0.7
50.7
526.4
16.9
64.0
0.4
50.4
518.5
13.7
74.1
Th
e H
G 6
rem
ov
al e
ffic
ien
cy c
urv
e p
lott
ed i
n F
igu
re 5
was
use
d t
o d
eter
min
e re
mo
val
effi
cien
cies
at
25
%, 5
0%
, 7
5%
, 1
00
% a
nd
12
5%
of
the
trea
tmen
tfl
ow
(1
.8 c
fs)
in o
rder
to
calc
ula
te a
n N
JCA
T w
eighte
d e
ffic
ien
cy o
f 6
0.5
%.
Th
e re
mo
val
effi
cien
cies
an
d t
he
wei
gh
ted
effi
cien
cy d
ata
are
sho
wn
in
Tab
le 5
.
19
Fig
ure
5 H
G 6
Rem
oval
Eff
icie
ncy
Cu
rve
Ta
ble
5 S
edim
ent
Rem
ov
al
Wei
gh
ted
Eff
icie
ncy
Flo
w (
cfs)
E
ffic
ien
cyN
J W
eig
hti
ng
W
eig
hte
d E
ff.
12
5%
2.2
54
2.7
0.1
4.3
10
0%
1.8
05
0.0
0.1
57
.5
75
%1
.35
57
.20
.21
1.4
50
%0
.90
64
.50
.31
9.4
25
%0
.45
71
.70
.25
17
.9
60.5
5.4
Ma
inte
na
nce
Alt
ho
ug
h a
ll p
arts
of
the
Hy
dro
gu
ard
sh
ou
ld b
e in
spec
ted
, in
spec
tio
n a
nd
mai
nte
nan
ce s
ho
uld
focu
s o
n t
he
inn
er a
nd
mid
dle
ch
amb
ers
sin
ce t
his
is
wh
ere
the
po
lluta
nts
(fl
oat
able
and
sin
kin
g)
wil
l ac
cum
ula
te.
A v
isu
al i
nsp
ecti
on
can
be
con
du
cted
for
float
able
s b
y r
emo
vin
g t
he
cov
ers
and
loo
kin
g d
ow
n i
nto
th
e se
par
ator.
Mu
ltip
le c
ov
ers
are
pro
vid
ed o
n H
yd
row
ork
s H
G u
nit
to
acc
ess
all
area
s o
f th
e se
par
ato
r (T
he
HG
4 m
ay h
ave
a si
ng
le l
arg
er (
30
” o
r 3
6”)
co
ver
du
e to
th
e la
ck
of
spac
e fo
r m
ult
iple
24”
cov
ers)
. In
spec
tio
n f
or
TS
S b
uil
d-u
p c
an b
e co
nd
uct
ed u
sin
g a
Slu
dg
e
Jud
ge®
, C
ore
Pro
®,
Acc
uS
lud
ge®
or
equ
ival
ent
sam
pli
ng d
evic
e th
at a
llo
ws
the
mea
sure
men
t
of
the
dep
th o
f T
SS
/sed
imen
t in
th
e u
nit
. T
he
Hy
dro
wo
rks
HG
un
it i
s ty
pic
ally
mai
nta
ined
usi
ng
a v
acto
r tr
uck
or
clam
sh
ell
bu
cket
. T
her
e ar
e n
um
ero
us
com
pan
ies
that
can
mai
nta
in t
he
HG
sep
arat
or.
E
nv
iro
calm
, L
LC
, an
af
fili
ated
co
mp
any
of
Hy
dro
wo
rks,
o
ffer
s in
spec
tio
n
and
mai
nte
nan
ce s
erv
ices
and
can
in
spec
t an
d m
ain
tain
th
e H
G s
epar
ator.
(ww
w.e
nv
iro
calm
.co
m).
Mai
nte
nan
ce i
nte
rval
s ar
e d
eter
min
ed f
rom
monit
ori
ng t
he
Hy
dro
gu
ard
sep
arat
or
du
rin
g i
ts f
irst
20
yea
r o
f op
erat
ion
. A
fter
co
mple
tio
n o
f th
e fi
rst
yea
r o
f op
erat
ion
, th
e es
tab
lish
ed i
nsp
ecti
on
an
d
mai
nte
nan
ce i
nte
rval
s w
ill
kee
p p
oll
uta
nt
load
ing
s w
ith
in t
hei
r re
spec
tive
lim
its.
E
stab
lish
ing
and a
dher
ing t
o a
reg
ula
r m
ainte
nan
ce s
ched
ule
en
sure
s opti
mal
per
form
ance
of
the
syst
em.
Dep
end
ing
o
n th
e si
te,
som
e m
ain
ten
ance
ac
tiv
itie
s m
ay h
ave
to b
e p
erfo
rmed
o
n a
more
freq
uen
t b
asis
than
oth
ers.
A
ll i
nsp
ecti
on
an
d m
ain
ten
ance
act
ivit
ies
should
be
reco
rded
in
an
Insp
ecti
on
an
d M
ain
ten
ance
Lo
g.
Sed
imen
t, veg
etat
ion,
and gro
ss deb
ris
can
g
ener
ally
b
e d
isp
ose
d o
f at
th
e lo
cal
lan
dfi
ll in
acco
rdan
ce w
ith
lo
cal
reg
ula
tio
ns.
T
he
tox
icit
y o
f th
e re
sid
ues
pro
duce
d w
ill
dep
end
on
th
e
acti
vit
ies
in t
he
con
trib
uti
ng
dra
inag
e ar
ea a
nd t
esti
ng o
f th
e re
sid
ues
may
be
req
uir
ed i
f th
ey a
re
con
sid
ered
po
ten
tial
ly h
azar
do
us.
S
ettl
ing
cham
ber
wat
er c
an g
ener
ally
be
dis
po
sed
of
at a
lice
nse
d w
ater
tre
atm
ent
faci
lity
, b
ut
the
loca
l se
wer
au
tho
rity
sh
ou
ld b
e co
nta
cted
fo
r p
erm
issi
on
pri
or
to d
isch
argin
g t
he
liquid
. S
ign
ific
ant
accu
mu
lati
on
s o
f oil
rem
ov
ed s
epar
atel
y f
rom
th
e
Hy
dro
gu
ard s
epar
ator
sho
uld
be
tran
spo
rted
to
a l
icen
sed
haz
ard
ou
s w
aste
tre
atm
ent
faci
lity
fo
r
trea
tmen
t o
r d
isp
osa
l.
In
al
l ca
ses,
lo
cal
regula
tors
sh
ould
b
e co
nta
cted
ab
out
dis
po
sal
req
uir
emen
ts.
Mai
nte
nan
ce o
f th
e H
yd
row
ork
s H
G s
epar
ato
r ty
pic
ally
tak
es 1
to
2 h
ou
rs.
6.
Tec
hn
ica
l E
va
lua
tio
n A
na
lysi
s
6.1
Ver
ific
ati
on
of
Per
form
an
ce C
laim
Bas
ed o
n t
he
eval
uat
ion
of
the
resu
lts
fro
m l
abo
rato
ry s
tudie
s, s
uff
icie
nt
dat
a ar
e av
aila
ble
to
sup
po
rt H
yd
row
ork
s’ c
laim
.
Cla
im –
The
Hydro
work
s H
G 6
sep
arat
or,
at
a tr
eatm
ent
flo
w r
ate
of
1.8
cfs
(8
08
gp
m,
28
.6
gp
m/f
t2),
has
bee
n s
ho
wn
by
mas
s b
alan
ce t
esti
ng
to
hav
e a
60
.5%
so
lid
s re
mo
val
eff
icie
ncy
(as
per
th
e N
JDE
P m
eth
od
olo
gy
fo
r ca
lcu
lati
on
of
trea
tmen
t ef
fici
ency
) u
sin
g N
JDE
P s
pec
ifie
d
mat
eria
l w
ith
an
av
erag
e d
50 p
arti
cle
size
of
70
mic
ron
s, i
nfl
uen
t co
nce
ntr
atio
n o
f 200 m
g/L
and
0%
in
itia
l se
dim
ent
load
ing
in
lab
ora
tory
stu
die
s u
sin
g s
imula
ted
sto
rmw
ater
.
6.2
Lim
itati
on
s
As
wit
h a
ny s
torm
wat
er q
ual
ity
tre
atm
ent
pra
ctic
e, l
ack o
f in
spec
tio
ns
and
mai
nte
nan
ce w
ill
lead
to r
edu
ced
per
form
ance
.
6.2
.1
Fact
ors
Cau
sin
gU
nd
er-P
erfo
rman
ce
As
sto
rmw
ater
tre
atm
ent
stru
ctu
res
fill
up
wit
h p
oll
uta
nts
th
ey b
eco
me
less
an
d l
ess
effe
ctiv
e in
rem
ov
ing
n
ew
po
llu
tio
n.
Th
eref
ore
it
is
im
po
rtan
t th
at
sto
rmw
ater
tr
eatm
ent
stru
ctu
res
be
mai
nta
ined
on
a r
egu
lar
bas
is t
o e
nsu
re t
hat
they
are
op
erat
ing a
t op
tim
um
per
form
ance
. T
he
Hy
dro
gu
ard
se
par
ato
r is
n
o
dif
fere
nt
in
this
re
gar
d.
Duri
ng
th
e co
nst
ruct
ion
p
erio
d,
the
Hy
dro
gu
ard
sep
arat
or
sho
uld
be
insp
ecte
d e
ver
y t
wo
wee
ks
and
aft
er e
ver
y l
arg
e st
orm
(>
0.5
” o
f
rain
).
Du
rin
g t
he
po
st-c
on
stru
ctio
n p
erio
d,
the
Hydro
work
s H
ydro
guar
d s
epar
ator
should
be
insp
ecte
d o
nce
per
yea
r fo
r n
orm
al s
tab
iliz
ed s
ites
(g
rass
ed o
r p
aved
area
s).
If t
he
unit
is
subje
ct 21
to o
il s
pil
ls o
r ru
noff
fro
m u
nst
abil
ized
(st
ora
ge
pil
es,
expose
d s
oil
s) a
reas
, th
e H
G s
epar
ator
sho
uld
be
insp
ecte
d m
ore
fre
qu
entl
y (
4 t
imes
per
yea
r).
If t
he
Hydro
guar
d s
epar
ato
r h
as r
each
ed
max
imu
m st
ora
ge
cap
acit
y o
f fl
oat
able
s o
r se
dim
ent
and has
not
bee
n se
rvic
ed,
one
would
exp
ect
to s
ee a
n i
ncr
ease
in
res
usp
ensi
on o
f ca
ptu
red p
oll
uta
nts
or
sed
imen
t.
Mai
nte
nan
ce o
f th
e
Hy
dro
gu
ard
sep
arat
or
sho
uld
be
per
form
ed b
y p
rop
erly
tra
ined
an
d c
erti
fied
per
son
nel
uti
lizi
ng
all
req
uir
ed O
SH
A r
equ
irem
ents
.T
he
actu
al m
ain
ten
ance
in
terv
al i
s dri
ven
by
th
e si
te p
oll
uta
nt
load
ing
char
acte
rist
ics.
Q
uar
terl
y f
ield
in
spec
tion
s w
ill
min
imiz
e th
e p
ote
nti
al f
or
a fa
ilure
.
Up
on
co
mple
tio
n o
f th
e co
nst
ruct
ion p
roje
ct t
he
syst
em s
hould
be
clea
ned
and c
lear
ed o
f an
y
deb
ris
or
sed
imen
t p
rio
r to
rel
ease
to
th
e o
wner
. T
his
pro
cess
wil
l pre
ven
t a
nee
d f
or
earl
y
clea
no
ut
or
the
po
ten
tial
fo
r u
nd
er p
erfo
rman
ce.
6.2
.2P
oll
uta
nt
Tra
nsf
orm
ati
on
an
d R
elea
se
Th
e H
yd
row
ork
s H
G
6
sep
arat
or
wil
l n
ot
crea
te
add
itio
nal
p
oll
uta
nts
in
th
e d
ow
nst
ream
env
iro
nm
ent;
ho
wev
er i
f th
e sy
stem
is
no
t in
spec
ted a
nd s
ervic
ed o
n a
reg
ula
r m
ainte
nan
ce c
ycl
e
du
e to
th
e co
nst
ant
wat
er p
oo
l in
th
e ch
amb
ers
ther
e m
ay b
e a
tran
sfo
rmat
ion
of
the
trap
ped
po
llu
tan
ts t
hat
co
uld
occ
ur
insi
de
the
syst
em.
Org
anic
mat
ter
is o
ne
exam
ple
wher
e st
udie
s hav
e
sho
wn
th
at
the
dec
om
po
siti
on
of
the
coll
ecte
d
mat
ter
has
p
rod
uce
d
ph
osp
hat
es
or
nit
rate
s.
Sed
imen
t co
llec
ted
in
the
syst
em w
ill
no
t b
e lo
st d
uri
ng
no
rmal
op
erat
ing
co
nd
itio
ns
wit
h t
he
use
of
a re
gu
lar
mai
nte
nan
ce p
rog
ram
as d
icta
ted
du
rin
g i
nsp
ecti
on
s.
6.2
.3S
ensi
tivit
y t
o H
eavy S
edim
ent
Load
ing
Hea
vy
sed
imen
t lo
ads
may
req
uir
e a
sho
rter
mai
nte
nan
ce i
nte
rval
or
po
ten
tial
ly c
ause
th
e sy
stem
to r
e-su
spen
d c
aptu
red
po
llu
tan
ts.
If u
nfo
rese
en e
xce
ssiv
e p
oll
uta
nts
are
co
llec
ted
fro
m t
he
site
and
was
hed
in
to t
he
syst
em (
e.g
. d
ue
to c
on
stru
ctio
n a
ctiv
itie
s o
n o
r ar
ou
nd
th
e si
te,
exce
ssiv
e or
oth
er t
han
norm
al s
ite
traf
fic,
co
nst
ruct
ion
act
ivit
y i
n t
he
pat
h o
f tr
affi
c en
teri
ng
th
e tr
eatm
ent
area
) w
hen
th
e sy
stem
is
n
ear
full
ca
pac
ity
, re
susp
ensi
on
o
f se
dim
ent
may
re
sult
. R
egu
lar
insp
ecti
on
or
incr
ease
d i
nsp
ecti
on
du
rin
g t
hes
e ti
mes
of
po
tenti
al i
ncr
ease
d s
edim
ent
load
ing
is
reco
mm
end
ed t
o m
inim
ize
any
fai
lure
in H
yd
rog
uar
d s
epar
ato
r p
erfo
rman
ce.
6.2
.4
Mo
squ
ito
es
Th
e H
yd
row
ork
s H
yd
rog
uar
d s
epar
ato
r is
a w
et c
ham
ber
sy
stem
th
at w
ill
con
tain
wat
er c
oll
ecte
d
du
rin
g n
orm
al o
per
atio
n a
nd
ret
ained
aft
er e
ven
ts.
Th
e v
olu
me
of
wat
er c
on
tain
ed m
ay d
ecre
ase
du
rin
g l
on
g d
ry s
pel
ls d
ue
to e
vap
ora
tio
n;
ho
wev
er t
her
e is
th
e p
oss
ibil
ity
fo
r th
is t
o b
e an
are
a o
f
con
cern
fo
r th
e b
reed
ing
of
mosq
uit
oes
.
7.
Net
En
vir
on
men
tal
Ben
efit
(N
EB
)
Once
th
e H
ydro
work
s H
G
sep
arat
or
has
b
een
gra
nte
d
inte
rim
ce
rtif
icat
ion
by
th
e N
JDE
P,
Hy
dro
wo
rks,
LL
C w
ill
pro
ceed
to
in
stal
l an
d m
onit
or
a sy
stem
in
th
e fi
eld
fo
r th
e p
urp
ose
of
ach
ievin
g
goal
s se
t b
y
the
Tie
r II
P
roto
col
and
fi
nal
ce
rtif
icat
ion
.
At
that
ti
me
a n
et
env
iro
nm
enta
l b
enef
it
eval
uat
ion
w
ill
be
com
ple
ted
.
Ho
wev
er,
it
sho
uld
be
no
ted
th
e
22
Hydro
work
s H
G s
epar
ator
has
no m
ovin
g p
arts
, an
d t
her
efo
re,
use
s n
o w
ater
or
ener
gy.
8.
Ref
eren
ces
Mai
llo
ux
, J.
T.,
an
d H
um
ph
rey
, A
. N
. (2
00
8).
Ver
ific
atio
n T
esti
ng
of
the
Hy
dro
gu
ard
HG
6
Hy
dro
dy
nam
ic S
epar
ato
r S
torm
wat
er T
reat
men
t U
nit
. P
rep
ared
for
Hydro
work
s, L
LC
,
Ken
ilw
ort
h, N
J. D
ecem
ber
23
, 2
00
8.
23
24
Ap
pen
dix
A
Figure A.1 Hydroworks HG 6 Test Unit
25
26
Figure A.2 Alden’s Stormwater Laboratory Flow Loop
E
D
BC
AA
Fig
ure
A.3
Pre
ssu
re T
ap
Lo
cati
on
s
27