russ brown (jones & stokes) alex hildebrand …...evaluating effects of the delta corridors plan...
TRANSCRIPT
Eval
uatin
g Ef
fect
s of t
he D
elta
C
orri
dors
Pla
n on
Sou
th D
elta
an
d Ex
port
Sal
inity
(EC
)
Rus
s Bro
wn
(Jon
es &
Sto
kes)
Ale
x H
ildeb
rand
(SD
WA
)C
V S
alin
ity T
echn
ical
Com
mitt
ee
Mar
ch 1
1, 2
008
Flow
and
Sal
inity
Rel
atio
nshi
ps
Load
(ton
s/da
y) =
0.0
0175
*flo
w(c
fs)*
EC(u
S/cm
)
SJR
salt
load
= 5
00,0
00 to
1,5
00,0
00 to
ns/y
ear
Ag
dive
rsio
n/re
turn
eff
ect o
n EC
= U
pstre
am E
C
*flo
w/(f
low
-div
ersi
on) i
f all
salt
retu
rned
to ri
ver
Was
tew
ater
EC
eff
ect =
Dis
char
ge*
(Eff
luen
t EC
-Riv
er E
C)/(
Dis
char
ge +
Riv
er F
low
)
Maj
or D
elta
Sal
inity
Fac
tors
Sacr
amen
to R
iver
EC
(200
uS/
cm)
SJR
EC
CV
P an
d SW
P Ex
ports
Tida
l flo
ws a
nd ti
dal f
low
split
sA
gric
ultu
ral D
rain
age
flow
s and
EC
Was
tew
ater
flow
s and
EC
Del
ta o
utflo
w a
nd se
awat
er in
trusi
on
San
Joaq
uin
Rive
r Ver
nalis
EC
Del
ta C
orri
dors
Pla
n
Hea
d of
Old
Riv
er g
ate
mov
ed to
div
ert a
ll SJ
R
into
Old
Riv
er w
ith 2
50 c
fs p
umpe
d up
stre
am
(fro
m S
tock
ton)
Old
Riv
er c
hann
el d
ivid
ed b
etw
een
Gra
nt L
ine
Can
al a
nd C
oney
Isla
nd a
nd a
t Vic
toria
Can
al
with
“R
iver
Brid
ge”
to se
para
te S
JR a
nd w
ater
su
pply
Four
bar
riers
sepa
rate
Old
Riv
er fr
om M
iddl
e R
iver
-with
Mid
dle
Riv
er d
redg
ing
DC
C o
pene
d w
ith fi
sh sc
reen
s on
DC
C a
nd
Geo
rgia
na S
loug
h
Maj
or D
elta
M
anag
emen
t Iss
ues
•Est
uary
hab
itat &
fish
ab
unda
nce
•Sal
inity
& d
rinki
ng w
ater
qu
ality
(TO
C)
•Wat
er su
pply
risk
(sal
inity
) fr
om le
vee
failu
re
•Agr
icul
ture
& u
rban
de
velo
pmen
t
•Boa
ting
& re
crea
tion
faci
litie
s
Rel
ocat
e H
ead
of O
ld R
iver
G
ate
to D
iver
t all
of th
e SJ
R F
low
into
Old
Riv
er
•Flo
od g
ate
and
boat
lock
•Ope
n flo
od g
ate
at 1
0,00
0 cf
s
•Pum
p 25
0 cf
s flo
w
upst
ream
from
Sto
ckto
n D
WSC
to d
isch
arge
w
aste
wat
er a
nd p
rovi
de
salin
ity re
duct
ion
in O
ld
Riv
er
Con
nect
ing
the
SJR
to
the
Est
uary
•R
oute
SJR
wat
er d
own
Old
Riv
er p
ast C
VP
and
SWP
expo
rts
•Pre
vent
ent
rain
men
t of a
ll SJ
R fi
sh (f
all-r
un a
nd
sprin
g-ru
n C
hino
ok a
nd
split
tail)
•Del
iver
rive
r pla
nkto
n (f
ood)
and
susp
ende
d se
dim
ent (
prot
ectio
n) to
es
tuar
y at
Fra
nk’s
Tra
ct
Sacr
amen
to R
iver
Fi
sh S
cree
ns fo
r D
CC
an
d G
eorg
iana
Slo
ugh
•Ope
n D
CC
to p
rovi
de
mor
e flo
w to
wat
er su
pply
co
rrid
or
•Wal
ls a
t bot
tom
and
su
rfac
e to
redu
ce la
tera
l flo
w o
f bot
tom
fish
&
sedi
men
t, of
surf
ace
fish,
flo
atin
g de
bris
& b
oats
•Exp
orts
shou
ld b
e lim
ited
to D
CC
+ G
eorg
iana
Slo
ugh
dive
rsio
ns to
pre
vent
SJR
re
cycl
e in
to M
iddl
e R
iver
Del
ta O
utflo
w is
the
maj
or fa
ctor
co
ntro
lling
Del
ta sa
linity
Del
ta C
orri
dors
redu
ces C
VP a
nd S
WP
EC b
y 35
%
for 1
975:
385
CVP
/373
SW
P to
265
for 1
976:
659
CVP
/667
SW
P to
460
for 1
977:
673
CVP
/655
SW
P to
385
SJR/
Old
Riv
er E
C is
alw
ays l
ess t
han
Vern
alis
EC
bec
ause
of D
C p
umpi
ng fl
ows
Seaw
ater
intr
usio
n in
to th
e M
iddl
e Ri
ver w
ater
su
pply
cor
rido
r will
still
occ
ur d
urin
g pe
riod
s of
low
Del
ta o
utflo
w-a
nd is
wor
se if
QW
EST
<0
Man
agin
g D
elta
and
Exp
ort E
C
with
the
Del
ta C
orri
dors
Pla
n
Pum
ping
250
-500
cfs
from
wat
er su
pply
cor
ridor
to
SJR
/Old
Riv
er w
ill re
duce
EC
for a
gric
ultu
ral
dive
rsio
ns a
long
the
Old
Riv
er c
orrid
orA
gric
ultu
ral d
rain
age
and
was
tew
ater
dis
char
ges
will
incr
ease
EC
alo
ng th
e O
ld R
iver
cor
ridor
Sepa
ratin
g th
e SJ
R fr
om th
e C
VP
and
SWP
pum
ps w
ill re
duce
exp
ort E
C b
y at
leas
t 25%
.Th
is w
ill re
duce
the
expo
rted
salt
load
from
2
mill
ion
to 1
.5 m
illio
n to
ns/y
ear