S ITES R ESERVOIR P ROJECT
Urban Water Institute Annual
Water Conference
www.sitesjpa.net
A u g u s t 2 7, 2 0 1 5
Partners Sites Joint Powers Authority Members
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Glenn County
Colusa County
Glenn-Colusa Irrigation District
Tehama Colusa Canal Authority
Reclamation District 108
Maxwell Irrigation District
Yolo County Flood Control and Water Conservation
District
Colusa County Water District
Westside Water District
Orland Artois Water District
Proberta Water District
DWR – non voting member
Project Location
Location and Features
S t o ra g e c a p a c i t y :
1.3 to 1.8 M acre-ft.
2015 Aug Draft
Flyover
2015 Aug Draft
Alternatives
2015 Aug Draft
Annualized Yield (Thousand acre-ft.)
Re s e r v o i r S i z e :
Ye a r Ty p e :
1.8 MAF
Av e ra g e
1.3 MAF
Dry/Critical
Av e ra g e
Dry/Critical
F illin g:
510
3 20
4 20
260
Re leases*:
480
5 80
4 00
440
*
R e s u l t s d o n o t i n c l u d e o p e r a t i o n o f t h e C A Wa t e r F i x ( a k a i n Delta conveyance), which, depending on additional spring
o u t f l o w, r e d u c e s o v e r a l l w a t e r s u p p l y a v a i l a b l e f o r A g &
M&I.
2015 Aug Draft
Costs/acre-ft. (with financing)
2015 Aug Draft
Annualized Water Benefits
(Thousand acre-ft.)
Re s e r v o i r S i z e :
Ye a r Ty p e :
1.8 MAF
Av e ra g e
1.3 MAF
Dry/Critical
Av e ra g e
Dry/Critical
F illin g:
510
3 20
4 20
260
Re leases*:
480
5 80
4 00
440
 Ag & M& I:
230
340
175
280
Carriage Loss: 35
50
30
40
1 90
1 95
120
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 P u blic
B ene fit :
*
215
Re s u l ts d o n o t i n c l u d e o p e rati o n o f th e C A Wate r F i x ( ak a i n - D e l ta
conveyance), which, depending on additional spring outflow, reduces overall
water supply available for Ag & M&I.
NOTE: Carriage loss is the contribution to in -Delta water quality (aka ‘salt
cost’), which is estimated.
2015 Aug Draft
Public Benefits ($ million/year)
$0.20
$250.00
$0.20
$0.20
$27.00
$30.10
$0.20
$23.50
Annual Public Benefit ($million/yr)
$200.00
$31.90
$31.90
$27.00
$29.10
$31.90
$150.00
Flood Damage
Reduction
Recreation
$100.00
$187.70
$199.00
Emergency Operations
$181.40
$162.80
Cold Water Pool
$50.00
Ecosystem Enhance
& Water Quality
$0.00
Alt. C
Alt. D
Alt. E
Alt. E (Max Bond)
2015 Aug Draft
Public Benefits, Ecosystem
(DFW Priorities)
S e lf - Asse ssme nt
1.
Native Fish: Promote recovery of
threatened & endangered plus at
risk species
 Timing of releases &
Shasta Cold water
pool
2.
Restore physical processes & flow regimes
to improve habitats & natural communities
 Releases can match
time of year ‘needs’
3.
Enhance Recreation
 Included
4.
Reduce adverse effects of
non-native species
? Further evaluation is
needed
5.
Reduce in-river structures’ impact on
anadromous species
 Existing intakes are
compliant. New
intake/outlet will be
designed to current
standards
6.
Increase aquatic & riparian habitat &
wetlands (managed & unmanaged)
 Managed seasonal
wetlands, including
refuges
2015 Aug Draft
Public Benefits, Water Quality
(SWRCB Priorities)
1.
For water bodies listed as impaired
by CWA §303(d),
S e lf - Asse ssme nt
a.
Improve water temperature
 Shasta CW Pool
b.
Improve dissolved oxygen
? Location dependent
c.
Improve nutrient conditions
? Potentially
d.
Reduce effects of mercury
? Flow vs. new habitat
e.
Reduce salinity
 Emergency response
2.
Protect &/or cleanup groundwater deemed
high or medium per CASGEM
? In lieu of groundwater
pumping in S. of Delta
3.
Achieve Delta tributary flows that
resemble natural hydrograph patterns for
aquatic species
? Baseline dependent
4.
Develop local water supplies to reduce
water demand on the Delta watershed
 Sac. valley interest in
project allows stored
water to be used in
lieu of diversions
during critical times
2015 Aug Draft
Other Societal Benefits
(not eligible for Prop 1 funding)
S e lf - Asse ssme nt
1.
Pumped-storage capability to capture
surplus renewable energy (daytime) &
contribute to demand during off-peak
(night) & shoulder loading time periods
(dawn & dusk), which aligns with the
g o v e r n o r ’s g o a l t o ‘ d e c a r b o n i z e ’ t h e s t a t e .
 Alternatives A thru C
2.
Contributes to the local & regional
economy
 Ancillary services
created by recreation,
additional jobs
(construction & O&M),
& spending on
maintenance.
3.
Contributes to stabilizing local
groundwater levels
 Local use of stored
water in lieu of
groundwater pumping
4.
Additional source for transfer water
 All alternatives
(some of which could be used to supply
disadvantaged communities in the San Joaquin
valley)
2015 Aug Draft
Operations (with Existing System)
2015 Aug Draft
Increases annual carryover storage *
(Thousand acre-ft.)
Re s e r v o i r S i z e :
1.8 MAF
Ye a r Ty p e :
Av e ra g e
E nd Sept :
1,21 0
1.3 MAF
Dry/Critical
89 0
Av e ra g e
79 0
Dry/Critical
550
* In c re a s e in t he e n d o f S e pt e mber s t o ra ge in
Tr inity, S ha s t a, Fo ls o m, Orov ille , & S it e s re s e r voir s
2015 Aug Draft
“Mutual Aide” to Folsom:
P rox imity t o De lt a a llo w s S it e s t o re le a se f lo w s in
re s po nse t o in - De lt a wa t e r qu a lity c o n c e r ns in lie u o f t h e
CV P & S W P de pe nden ce o n re ly in g s o le ly o n re le a ses fro m
Fo ls o m.
Integrated Operations:
Ope ra t ing S it e s in c o n j u nc t ion w it h CV P & S W P t o be tt e r
o pt imize ava ila ble wa t e r fo r bo t h wa t e r s u pply a n d pu blic
be n e f it s.
2015 Aug Draft
Project Summary
DWR/USBR Alternative C
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1.8 MAF
500 TAF/Year yield
1.2 MAF of increased upstream storage
Benefits - Water Supply-50%, Ecosystem50%, Power, Recreation
$3.5-4.5 B Construction Cost
10 Year Planning &Construction
$550 - $700/AF
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