Truckee River Water Accounting Modeling Effort River Ware

Truckee River Water Accounting Modeling Effort River. Ware User Meeting June 2003 @ Univ. of Colorado, CADSWES, Boulder CO 1

WINNEMUCCA LAKE (dry) NEVADA CALIFORNIA Pyramid Lake Paiute Indian Reservation PYRAMID LAKE Nixon Stillwater NWR Reno/Sparks STAMPEDE INDEPENDENCE Derby Dam TRUCKEE RIVER Fernley TRUCKEE CANAL BOCA PROSSER DONNER Truckee MARTIS Fallon LAHONTAN Carson City CARSON RIVER Newlands Project Fallon Paiute-Shoshone Indian Reservation CARSON LAKE Tahoe City LAKE TAHOE 2

Lake Tahoe 3

Tahoe Dam below Lake Tahoe 4

Stampede 5

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WINNEMUCCA LAKE (dry) NEVADA CALIFORNIA Pyramid Lake Paiute Indian Reservation PYRAMID LAKE Nixon Stillwater NWR Reno/Sparks STAMPEDE INDEPENDENCE Derby Dam TRUCKEE RIVER Fernley TRUCKEE CANAL BOCA PROSSER DONNER Truckee MARTIS Fallon LAHONTAN Carson City CARSON RIVER Newlands Project Fallon Paiute-Shoshone Indian Reservation CARSON LAKE Tahoe City LAKE TAHOE 7

Truckee Meadows M&I 8

Truckee Meadows 9

Derby Dam 10

Pyramid Lake Fish 11

Operations n n Current Operations – 1935 Truckee River Agreement Future Operations – Truckee River Operating Agreement 12

Reservoir Operations NV Independence Lake n Storage owned by Sierra Pacific Power Co. INDEPENDENCE n Released for M&I drought relief DONNER Donner Lake n Storage owned by Sierra Pacific Power Co. and Truckee-Carson Irrigation District n Released in fall for M&I/Irrigation CA (Private) 13

Reservoir Operations n n Cui-ui and Lahontan Released for M&I cutthroat trout Prosser Creek Reservoir n n STAMPEDE NV Stampede Reservoir CA (Federal) PROSSER MARTIS Uncommitted water (cui-ui) Lahontan cutthroat trout Released for M&I / Irrigation Martis Creek Reservoir n Flood control 14

Reservoir Operations n n Lake Tahoe and Boca water BOCA u Released for Floriston Rates PROSSER (Orr Ditch Decree) -- 300 -500 cfs at Farad (Stateline) Tahoe-Prosser Exchange u Maintain 50 -70 cfs downstream LAKE from Lake Tahoe TAHOE Flood control in Prosser and Boca NV n CA Lake Tahoe $ Prosser Creek Reservoir $ Boca Reservoir 15

NV STAMPEDE CA Tahoe Prosser Exchange PROSSER MARTIS 16

Truckee River Operational Priorities n n 1) 9, 500 AF Donner & 3, 000 AF Independence 2) Claims 1&2 3) Diversions in California prior to October 28, 1990 (except Orr Ditch Decree rights & Sierra Valley Decree) 4) 40 cfs by Sierra n n n 5) California diversions after Oct 28, 1990 6) Orr Ditch rights 7) Floriston rates 8) 25, 000 AF Boca 9) Claim 3 17

Truckee River Operational Priorities n n n 10) 15, 850 AF Boca 11) 14, 500 AF Independence 12)126, 000 AF Stampede 13) 30, 000 AF Prosser 14) Tribe’s unappropriated water 18

COLORED WATER VIA ACCOUNTS Water Quality Water/Fernley M&I Water Fish Credit Non-Firm M&I Credit Fish Water Firm M&I Credit 19

Water Quality Water/Fernley M&I Water Fish Credit Non-Firm M&I Credit Fish Water Firm M&I Credit 20

STORAGE ACCOUNTS 21

TROA (types of water) n n n n Floriston Rate Water Project Water POSW Water Imported Water Additional California Environmental Credit Water California M&I Credit Water Fernley Municipal Credit Water 22

TROA (types of water) n n n n n Fish Credit Water Fish Water Joint Program Fish Credit Water Newlands Project Credit Water Other Credit Water Power Company Emergency Credit Water Power Company M&I Credit Water (Firm and Non-Firm M&I) Project Water in Another Reservoir Water Quality Credit Water 23

TROA Credit Water Priorities n n n n 1. Impoundment of California M&I Credit Water and California Environmental Credit Water in Lake Tahoe 2. Operations involving Power Company M&I Credit Water, Fish Credit Water, Joint Program Fish Credit Water, and certain operations of Fish Water (see related section below) 3. Operations, other than impoundment in Lake Tahoe, involving California M&I Credit Water and California Environmental Credit Water 4. Operations involving Water Quality Credit Water or Fernley Municipal Credit Water 5. Operations involving Project Water in Another Reservoir, including Project Water that becomes Project Water in Another Reservoir 6. Impoundment of Additional California Environmental Credit Water 7. Operations involving Newlands Project Credit Water 8. Operations, other than impoundment of Additional California Environmental Credit Water, involving Other Credit Water and Additional California Environmental Credit Water 24

TROA Water Spill Order n n n n 1. Other Credit Water and Additional California Environmental Credit Water 2. Newlands Project Credit Water 3. Project Water in Another Reservoir 4. Water Quality Credit Water and Fernley Municipal Credit Water 5. California Environmental Credit Water 6. California M&I Credit Water 7. Fish Credit Water, Joint Program Fish Credit Water, and Non. Firm M&I Credit Water 8. Project Waters and Private Waters from their own reservoirs 25

Sources For Stampede Storage Categories With TROA Acquired diversion rights Single purpose power component of Floriston Rates Other Credit Water Quality Water/Fernley M&I Water California M&I Water Fish Credit Non-Firm M&I Credit Exchanged from Lake Tahoe Storable Little Truckee River Fish Water Firm M&I Credit M&I Emergency Drought Supply Private Water & Former Agricultural Water Rights 26

n NOTWITHSTANDING 27

Potential TROA Signatories n U. S Department of the Interior n State of California n State of Nevada n n • Town of Fernley • Churchill County • Washoe County • City of Sparks Pyramid Lake Paiute Tribe • Washoe County Water Conservation District Sierra Pacific Power Co. • Fallon Paute-Shoshone Tribes • City of Reno • Truckee-Carson Irrigation District • Carson-Truckee Water Conservancy District 28

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DIADvisor – Farad 30

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NRCS APR 1 FORECASTS - KAF n n n YEAR 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 ACTUAL FORECST 27. 4 30 50. 6 50 17. 5 38 258. 9 195 32. 5 50 469. 0 260 304. 1 210 249. 2 310 314. 2 270 284. 0 235 % ERR 9 + 1 - 117 + 25 - 54 + 45 + 31 - 24 + 17 32

Upper Truckee Vicinity PRMS Basin delineation for Upper Truckee Basin 33

AUTOMATED PARAMETER ESTIMATION USING THE GIS WEASEL 34

USGS Hydrologic Response Unit 35

MMS ESP Tool All Computed Traces using 1975 - 1998 36

MMS ESP Tool Operator selected 10, 50, and 90 % probability of exceedance 37

ESP Forecasts La Niña Years ENSO Neutral 38

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Daily Natural Flow Data n Bad data [Jorgeson, 2002] 40

Data Storage System (HEC-DSS) n Corps of Engineers Database u Excellent for time series data u Temporary data base until HDB in place u Poor for storing table data, metadata 41

Hydrologic Data Base (HDB) Current Research and Development n Database of Record u store base data and derive all other data u track all changes of data u able to reproduce data that decisions were made from u consistent view of the historical, current and future state of the system n “Corporate” HDB u keeping each database “in sync”, redundancy n HDB Web Access 42

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River. Ware Models n n Accounting Forecasting Scheduling Planning 44

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Water Quality Settlement Agreement STAMPEDE NEVADA CALIFORNIA PYRAMID LAKE Nixon Reno/Sparks TRUCKEE RIVER INDEPENDENCE BOCA PROSSER DONNER MARTIS LAKE TAHOE 46

Outline of approach 47

Scenarios 48

Climate forecast v Modify the target temperature based on: v. Volume of WQCW available v. Climate forecast of above normal temperatures Valid May 2002 0. 5 MO LL Monthly, Temperature 49

Results (cont. ) 50

Violations and WQCW released (1988 -1994) 51

Water Quality Modeling n n n Utilize existing basin-specific water quality models Eventually provide real-time decisions Operate interactively with River. Ware u Give example of integration between RW and other models u Create similarity to Wa. RSMP couterpart “MMS” 52

WQ Modeling – Coming Soon 53

COLORED WATER VIA ACCOUNTS Water Quality Water/Fernley M&I Water Fish Credit Non-Firm M&I Credit Fish Water Firm M&I Credit 54

Cui-ui 55