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 • • • • • • • • • • • • 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 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 • • • • • • • • 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 www.sitesjpa.net