Transcript Slide 1
N
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ACRAMENTO
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M AY 3, 2011
State of California Department of Water Resources U.S. Department of the Interior Bureau of Reclamation 1
Outline
Introduction NODOS Investigation History: – CALFED and NODOS – Flow Regime TAG Project Overview: – Alternatives Considered – Alternatives to be Evaluated In Detail NODOS Operations and Operational Modeling – Some Results – Other Models Schedule Contact Information
CALFED and Storage
• • • • • • “All aspects … are interrelated and interdependent.” “The success of all of the elements depends upon expanded and more strategically managed storage.” CALFED: Initial Surface Storage Screening CALFED ROD: 5 surface storage projects Acceptable surface storage projects support CALFED Program objectives Storage provides needed system flexibility
NODOS Objectives
• • • • • • Water Supply Reliability – agricultural, urban, refuge, and emergency response Anadromous Fish and Other Aquatic Species Survival Delta Water Quality Flexible hydropower generation to support renewable integration Recreation Flood Damage Reduction
Sacramento River Flow Regime
• • Stakeholder participants identified the flow regime of the Sacramento River as one of the primary areas of concern related to potential implementation impacts. Early conceptual formulations of a NODOS project conceived that the flow regime and associated ecosystem processes of the river could be improved with an offstream storage facility.”
Investigation requested formation of a Technical Advisory Group to …
• • Identify potential NODOS flow regime impacts and improvements Further the general understanding of Sacramento River flow regime
TAG Participation
• • • • • • • • • • • Friends of the River Sacramento River Conservation Area Forum Sacramento River Preservation Trust Tehama-Colusa Canal Authority The Bay Institute The Natural Heritage Institute The Nature Conservancy University of California at Davis California Bay-Delta Authority U.S. Bureau of Reclamation NOAA Fisheries • • • • • • • • • Department of Fish and Game Department of Water Resources U.S. Fish and Wildlife Service U.S Army Corps of Engineers DWR/COE Comprehensive Studies CH2MHill Metropolitan Water District of So California State Water Contractors Orland Unit Water User’s Association
TAG Identified Flow Regime Improvement Opportunities
• • • • • • Increase peak flows during Winter / Spring to support physical river functions Restore Spring snowmelt pattern to support cottonwood success Stabilize Fall flows to avoid stranding and desiccation Increase Spring flow duration in Yolo Bypass Reduce diversions Improve river temperatures for salmonids
What we wanted from TAG
• • Help identify Ecosystem Restoration benefits of NODOS Help develop operational guidance for NODOS diversions
Flow Regime TAG also Suggested
• • • An assessment of the river’s flow regime using a shorter time-step than CALSIM II (monthly) Consideration of additional tools to describe effects of the project Consideration of the CALFED Ecosystem Restoration Program
Alternatives Considered
• • • • Red Bank Reservoir (and others within Cottonwood Creek watershed) Newville Reservoir Colusa Reservoir Sites Reservoir
Alternatives for Detailed Evaluation:
Alternatives for Detailed Evaluation:
Alternatives for Detailed Evaluation:
Ecosystem Enhancement Account
• • • • Formulation: Includes specific water-dependent restoration actions Account actions from CALFED Ecosystem Restoration Program list and input from Sacramento River Flow Regime TAG and Agencies Integrated with other project objectives Adaptive management
Ecosystem Enhancement Actions (EEA) Included in Alternatives:
• • • • • • • Improve the reliability of coldwater pool storage in Shasta Lake Provide releases from Shasta Dam to improve Sacramento River water temperatures in during Below Normal, Dry and Critical water year types Improve the reliability of coldwater pool storage in Folsom Reservoir to maintain or improve water temperatures in the lower American River, May through November – all year types Provide supplemental Delta outflow during summer and fall months to improve X2 (if possible, west of Collinsville, 81 km) Improve the reliability of coldwater pool storage in Lake Oroville to improve water temperature from May through November during all water year types Stabilize flows in the Sacramento River between Keswick Dam and the Red Bluff Diversion Dam particularly during fall months Provide increased flows from spring through fall in the lower Sacramento River by reducing diversions at Red Bluff and at Hamilton City
•
Assumptions for Modeling of NODOS Alternatives
The assumptions for the Existing Conditions and No Action Alternative include the 2008 and 2009 Biological Opinions • • Red Bluff Fish Passage Improvement Project is assumed to be implemented in the No Action Alternative Climate change will be evaluated in a sensitivity analysis
NODOS Operational Schedule
Assumptions Regarding NODOS Intake Operations
• NODOS diversions are coordinated with those of existing users of Tehama-Colusa Canal and Glenn-Colusa Irrigation District Canal • Operations and Maintenance is scheduled based upon needs at each diversion location
• •
Assumptions Regarding NODOS Intake Operations
Diversions to storage are restricted until bypass requirements achieved (must be met for diversion to storage to occur) – – Below Hamilton City: 4,000 cfs (3 day average) At Wilkens Slough: 5,000 cfs (3 day average) – At Freeport/Hood (average monthly): • 15,000 cfs in January • • 13,000 cfs in December or Febraury through June Otherwise 11,000 cfs Diversions to storage restricted to protect potential pulse events – Up to one pulse event per month (October – May) – – – Pulse range 15,000 cfs – 25,000 cfs (based on Bend Bridge as indicator) Pulse event qualified if duration of seven days Diversions not restricted once pulse event not qualified (not in range or event already occurred)
Example of Pulse Protection
Signal 40,000 35,000 30,000 25,000 Pulse Protection Zone 20,000 15,000 10,000 5,000 0 Restricted NODOS diversions Wilkins Slough Freeport
Sample Results
From NODOS Alternatives
System Flexibility: Total Storage of Trinity, Shasta, Oroville, Folsom and NODOS May Total NOD CVP/SWP Storage
14,000 12,000 10,000 8,000 6,000 4,000 14,000 2,000 NAA ALT_A ALT_B ALT_C 0 100% 90% 80% 70% 60% 50% 40%
Probability of Exceedence
30% 20% 10% 12,000 0% 10,000 8,000 6,000 4,000
September Total NOD CVP/SWP Storage
2,000 NAA 0 100% 90% 80% ALT_A ALT_B ALT_C 70% 60% 50% 40%
Probability of Exceedence
30% 20% 10% 0%
Total Diversions and Releases October-September Total Sacramento River Diversions to Fill Sites Reservoir Averages
542.9
600.0
500.0
400.0
300.0
200.0
100.0
0.0
483.0
483.1
ALT_A ALT_B ALT_C
2,500.0
Total Sacramento River Diversions to Fill Sites Reservoir Averages
2,000.0
1,500.0
1,000.0
500.0
0.0
EX NAA ALT_A ALT_B ALT_C OCT 0.0
0.0
59.5
78.1
79.2
NOV 0.0
0.0
199.8
142.3
202.0
DEC 0.0
0.0
1407.1
1030.5
1398.3
JAN 0.0
0.0
2162.7
1453.5
2232.6
FEB 0.0
0.0
2085.8
1687.3
2371.6
MAR 0.0
APR 0.0
0.0
1557.0
2209.6
1944.5
Month
0.0
336.5
827.7
463.2
MAY 0.0
0.0
99.1
388.9
177.9
JUN 0.0
0.0
46.0
53.5
81.8
JUL 0.0
0.0
5.2
17.2
5.7
AUG 0.0
0.0
71.6
120.5
80.4
SEP 0.0
0.0
30.9
32.7
28.2
Total Releases from NODOS Averages
2,500.0
2,000.0
1,500.0
1,000.0
500.0
0.0
OCT EX 0.0
NAA ALT_A ALT_B 0.0
922.4
831.0
ALT_C 1066.3
NOV 0.0
0.0
847.5
843.3
997.4
DEC 0.0
0.0
114.8
89.4
175.2
JAN 0.0
0.0
8.0
0.0
9.3
FEB 0.0
0.0
37.2
34.8
80.4
MAR APR 0.0
0.0
83.9
71.3
92.1
Month
0.0
0.0
479.2
567.4
473.7
MAY 0.0
0.0
536.0
605.4
564.6
JUN 0.0
0.0
1485.5
1030.3
1559.8
JUL 0.0
0.0
2113.8
1562.2
2129.6
AUG 0.0
0.0
1075.3
899.0
1341.3
SEP 0.0
0.0
1166.1
1084.5
1264.0
Diversions at Red Bluff, Hamilton City and Delevan Pipeline Red Bluff Diversion Dam Diversion Averages Hamilton City Diversion Averages
3,000.0
3,000.0
2,500.0
2,500.0
2,000.0
2,000.0
1,500.0
1,500.0
1,000.0
1,000.0
500.0
500.0
0.0
EX NAA ALT_A ALT_B ALT_C OCT 113.8
110.4
110.7
106.4
114.1
NOV 7.1
6.6
109.8
120.0
111.5
DEC 0.0
0.0
701.8
755.3
702.6
JAN 0.0
0.0
1256.7
1371.9
1276.3
FEB 2.9
2.1
1240.7
1528.8
1376.1
MAR APR 16.7
12.6
859.8
1476.7
151.7
132.6
284.9
580.5
1037.9
360.8
Month
MAY 436.3
412.7
391.3
633.5
436.5
JUN 729.0
749.1
394.6
685.2
394.1
JUL 833.6
811.0
455.0
668.3
459.3
AUG 678.5
661.0
620.6
673.3
600.0
SEP 159.2
149.5
103.4
96.6
101.0
0.0
EX NAA ALT_A ALT_B ALT_C OCT 693.0
753.5
713.6
735.1
681.6
NOV 387.8
445.2
432.8
418.7
419.6
DEC 178.7
210.1
571.3
482.5
570.0
JAN 68.7
83.4
237.4
179.5
242.7
FEB 53.7
67.5
273.5
244.8
303.5
MAR APR 37.6
40.2
455.9
811.6
2197.9
2190.2
2196.8
2477.2
570.7
2237.1
Month
MAY 2011.2
2084.9
1996.3
2242.8
2015.2
JUN 2846.3
2903.1
2066.7
2631.2
2044.9
JUL 2673.0
2798.2
1767.8
2372.1
1745.3
AUG 1944.4
2066.3
1963.2
2121.5
1840.3
SEP 477.8
548.5
487.5
494.3
466.5
New Delevan Pipeline Intake Diverion Averages
1,200.0
800.0
400.0
0.0
EX NAA ALT_A ALT_B ALT_C OCT 0.0
0.0
6.8
0.0
16.1
NOV 0.0
0.0
54.8
0.0
55.0
DEC 0.0
0.0
342.6
0.0
335.0
JAN 0.0
0.0
761.1
0.0
805.9
FEB 0.0
0.0
654.6
0.0
776.2
MAR 0.0
0.0
308.2
0.0
APR 0.0
0.0
68.2
0.0
406.0
70.7
Month
MAY 0.0
0.0
65.9
0.0
78.0
JUN 0.0
0.0
694.2
0.0
689.8
JUL 0.0
0.0
468.0
0.0
485.2
AUG 0.0
0.0
18.8
0.0
16.4
SEP 0.0
0.0
7.2
0.0
2.4
Cold Water Pool Management
Shasta Lake End-of-Month Storage Shasta Lake Storage
5,000.0
4,500.0
4,000.0
3,500.0
3,000.0
2,500.0
2,000.0
1,500.0
1,000.0
500.0
0.0
10/1/1921 EX 10/1/1931 NAA ALT_A 10/1/1941 ALT_B 10/1/1951 ALT_C 10/1/1961
Date
NOTUSED 10/1/1971 10/1/1981
May Shasta Lake Storage
10/1/1991
September Shasta Lake Storage
5,000.0
4,500.0
4,000.0
3,500.0
3,000.0
2,500.0
2,000.0
1,500.0
1,000.0
500.0
0.0
100% EX 90% 80% NAA ALT_A ALT_B ALT_C 20% NOTUSED 10% 0% 5,000.0
4,500.0
4,000.0
3,500.0
3,000.0
2,500.0
2,000.0
1,500.0
1,000.0
500.0
0.0
100% EX 90% NAA 80% ALT_A ALT_B ALT_C 20% 70% 60% 50% 40%
Probability of Exceedence
30% 70% 60% 50% 40%
Probability of Exceedence
30% NOTUSED 10% 10/1/2001 0%
Sacramento River Temperature at Bend Bridge June-September Temperature of Flow at Bend Bridge
66.0
64.0
62.0
60.0
58.0
56.0
NAA ALT_A ALT_B 54.0
100% 90% 80% 70% 60% 50% 40%
Probability of Exceedence
30% ALT_C 20% 10% 0%
Stability Flows: Sacramento River Flow below Keswick Dam
12,000.0
December-February Sacramento River Flow below Keswick Reservoir
10,000.0
8,000.0
6,000.0
4,000.0
2,000.0
EX 0.0
100% 90% NAA ALT_A ALT_B ALT_C 80% 70% 60% 50% 40%
Probability of Exceedence
30% NOTUSED 20% 10% 0%
Water Supply Reliability
NODOS_ALTC NOACTION Water Supply Reliability Sacramento River Hydrologic Region
TCCA Delivery TCCA CVP Ag Delivery TCCA Non-CVP Delivery CVP Ag (includes TCCA CVP) Contract Delivery (annual average) Delivery (annual average) SWP Ag Contract Delivery (including Article 21) (annual average)
San Francisco Bay Hydrologic Region
(TAF/year) (TAF/year) Contract Delivery (annual average - does not include Settlement contractors) (TAF/year) Long Term Driest Periods Long Term Driest Periods Long Term Driest Periods CVP M&I SWP M&I Contract Delivery (annual average) (TAF/year) Long Term Driest Periods
San Joaquin River Hydrologic Region (not including Friant-Kern and Madera Canal water users)
CVP Ag CVP M&I Contract Delivery (annual average) Contract Delivery (annual average; does not include Exchange contractors) Contract Delivery (annual average) (TAF/year) (TAF/year) (TAF/year) Long Term Driest Periods Long Term Driest Periods Long Term Driest Periods (TAF/year) Long Term Driest Periods CVP Ag CVP M&I SWP M&I Contract Delivery (annual average) Contract Delivery (annual average) Contract Delivery (including Article 21, includes transfers to SWP contractors) (annual average) (TAF/year) (TAF/year) (TAF/year) Long Term Driest Periods Long Term Driest Periods Long Term Driest Periods
Central Coast Hydrologic Region
SWP M&I Contract Delivery (annual average) (TAF/year) Long Term Driest Periods
Tulare Lake Hydrologic Region (not including Friant-Kern Canal water users)
CVP Ag Contract Delivery (annual average - includes Cross Valley Canal) (TAF/year) SWP Ag Contract Delivery (including Article 21) (annual average) (TAF/year) SWP M&I Contract Delivery (annual average) (TAF/year) Long Term Driest Periods Long Term Driest Periods Long Term Driest Periods
South Lahonton Hydrologic Region
SWP M&I Contract Delivery (including Article 21) (annual average)
South Coast Hydrologic Region
SWP Ag Contract Delivery (including Article 21) SWP M&I (annual average) Contract Delivery (including Article 21, includes transfers to SWP contractors) (annual average) (TAF/year) (TAF/year) (TAF/year) Long Term Driest Periods Long Term Driest Periods Long Term Driest Periods
Total For All Regions
Total Supplies Contract Delivery (CVP, SWP and other) (annual average) (TAF/year) Long Term Driest Periods 199 51 0 0 224 58 213 163 24 17 293 89 16 13 4 3 36 12 306 332 209 149 46 33 609 196 691 493 88 64 281 200 9 6 1,419 1,028 4,469 2,856 Notes: 1. Long Term is the average quantity for the period of Oct 1921 - Sep 2003.
2. Driest Periods is the average quantity for the combination of periods of May 1928 - Oct 1934, Oct 1975 - Sep 1977, and Jun 1986 - Sep 1992.
4,311 2,534 191 47 0 0 214 52 211 160 23 14 290 85 16 12 4 2 36 11 306 331 199 127 44 28 601 185 657 425 84 54 267 167 8 5 1,353 876
NODOS_ALTC minus NOACTION
159 321 2 5 8 11 35 68 4 11 14 34 0 1 67 152 1 1 1 1 10 21 3 5 0 0 0 0 9 5 0 0 10 5 2 2 1 3
Delta Water Quality Improvement
Delta Water Quality Augmentation
NODOS Release Flow (annual average from July-Dec) Delta Export Water Quality TDS (export weighted) (TAF/year) (mg/l) Long Term Driest Periods Long Term Driest Periods 0 0 255.9
299.7
650.0
Old River Water Quality at Rock Slough (ANN based estimate) Averages
600.0
EC 550.0
500.0
450.0
400.0
350.0
300.0
250.0
200.0
NAA ALT_A ALT_B ALT_C OCT 533.0
483.6
480.3
462.9
NOV 575.6
518.3
521.3
493.5
DEC 577.9
561.8
556.0
549.2
JAN 531.6
530.8
527.1
517.1
FEB 461.3
447.8
442.6
447.2
MAR APR 330.6
330.8
327.3
286.1
288.0
286.2
331.5
287.6
Month
MAY 344.3
345.9
344.6
346.0
JUN 366.8
366.7
367.6
366.9
JUL 284.1
283.2
284.0
283.9
AUG 312.7
297.6
295.8
297.7
SEP 430.5
379.9
378.3
375.4
142 92 246.8
300.1
142 92
-9.1
0.4
Alternatives Performance
600 500 400 300 200 100 0
Water Quality Ecosystem Ag. and M&I Average Driest Period Alternative A
31
Average Driest Period Alternative B Average Driest Period Alternative C
Modeling Status and Ongoing Activities
Analytical Framework – System (feasibility, system-level impacts) Climate Change Modified Hydrology Sea Level Rise
VIC, ANN
Reservoir/River Temp
USRWQM, Reclamation Temperature
Reservoir, River temperatures Hydrology & System Operations
CALSIM II, USRDOM
Water supply impacts, river flows, exports, storage Power
LTGEN, SWP Power, NODOS Power
Net Generation and Use Delta Hydrodynamics
DSM2-HYDRO
Delta channel flows, stages, velocities Fisheries
Reclamation Mortality, SALMOD, WRCLCM (IOS)
Survival, Potential Production, Population Economics
SWAP, LCPSIM/SUPEM, LCRBWQM/SBWQM
Quantification of Economic Benefits Delta Water Quality
DSM2-QUAL
Salinity (EC, Cl, TDS, Br) and fingerprinting (EC, volume)
Analytical Framework – Local (local watershed impacts) Surface Water Resources
CALSIM II
Monthly storage, flow & diversion operations
CAL2DOM USRDOM
Daily storage, Sac River and tributary flow & diversion operations Surface Water Quality
USRWQM
Daily Sacramento River Temperature Other Quantitative and Qualitative Analyses Fluvial Geomorphology and Riparian Habitat
SRH-2D
Local Vel. Scour, & Stage
RHEM
Riparian Veg. Growth
SRH-SIAM
Sediment Loads
SRH Meander
Point Bar Growth
SRH-1DV
Riparian Veg. Survival Aquatic Biological Resources
WRCLCM (IOS/DPM Model)
Sacramento River Winter Chinook
SAC-EFT
Sacramento River Chinook salmon, steelhead, green sturgeon, bank swallow, western pond turtle
SALMOD
Sacramento River Fall, Late-Fall, Winter & Spring Chinook Other Quantitative and Qualitative Analyses
Schedule
•
P
UBLIC
D
RAFT
NODOS EIR / EIS and Feasibility Study Report December 2011 •
F
INAL
D
RAFT
NODOS EIR / EIS and Feasibility Study Report December 2012
Contacts
Jim Wieking Department of Water Resources P.O. Box 942836 Sacramento CA 94236 916-651-9279 [email protected]
Sharon McHale Bureau of Reclamation 2800 Cottage Way, MP-700 Sacramento CA 95825 916-978-5086 [email protected]
Project Websites: www.storage.water.ca.gov/northdelta/index.cfm
www.usbr.gov/mp/nodos/index.html