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

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

3 Lake Tahoe

4 Tahoe Dam below Lake Tahoe

5 Stampede

6

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

8 Truckee Meadows M&I

9 Truckee Meadows

10 Derby Dam

11 Pyramid Lake Fish

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

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

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

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

16 Tahoe Prosser Exchange CA NV PROSSER STAMPEDE MARTIS

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

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

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

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

21 STORAGE ACCOUNTS

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

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

24 TROA Credit Water Priorities n 1. Impoundment of California M&I Credit Water and California Environmental Credit Water in Lake Tahoe n 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) n 3. Operations, other than impoundment in Lake Tahoe, involving California M&I Credit Water and California Environmental Credit Water n 4. Operations involving Water Quality Credit Water or Fernley Municipal Credit Water n 5. Operations involving Project Water in Another Reservoir, including Project Water that becomes Project Water in Another Reservoir n 6. Impoundment of Additional California Environmental Credit Water n 7. Operations involving Newlands Project Credit Water n 8. Operations, other than impoundment of Additional California Environmental Credit Water, involving Other Credit Water and Additional California Environmental Credit Water

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

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

27 n NOTWITHSTANDING

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

29

30 DIADvisor – Farad

31

32 NRCS APR 1 FORECASTS - KAF n YEAR ACTUAL FORECST % ERR n n n n n n n n n n

33 Upper Truckee Vicinity PRMS Basin delineation for Upper Truckee Basin

34 AUTOMATED PARAMETER ESTIMATION USING THE GIS WEASEL

35 USGS Hydrologic Response Unit

36 MMS ESP Tool All Computed Traces using

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

38 ESP Forecasts La Niña Years ENSO Neutral

39

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

41 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

42 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

43

44 RiverWare Models n Accounting n Forecasting n Scheduling n Planning

45

46 Water Quality Settlement Agreement

47 Outline of approach

48 Scenarios

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

50 Results (cont.)

51 Violations and WQCW released ( )

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

53 WQ Modeling – Coming Soon

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

55 Cui-ui