Lake Tahoe Tahoe Dam below Lake Tahoe


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Lake Tahoe



Tahoe Dam below Lake Tahoe



Stampede







Truckee Meadows M&I



Truckee Meadows



Derby Dam



Pyramid Lake Fish



Operations

  • Current Operations – 1935 Truckee River Agreement

  • Future Operations – Truckee River Operating Agreement



Reservoir Operations (Private)

  • Independence Lake

  • Storage owned by Sierra Pacific Power Co.

  • Released for M&I drought relief

  • Donner Lake

  • Storage owned by Sierra Pacific Power Co. and Truckee-Carson Irrigation District

  • Released in fall for M&I/Irrigation



Reservoir Operations (Federal)

  • Stampede Reservoir

  • Cui-ui and Lahontan

  • Released for M&I cutthroat trout

  • Prosser Creek Reservoir

  • Uncommitted water (cui-ui) Lahontan cutthroat trout

  • Released for M&I / Irrigation

  • Martis Creek Reservoir

  • Flood control



Reservoir Operations

  • Lake Tahoe and Boca water

    • Released for Floriston Rates (Orr Ditch Decree) -- 300-500 cfs at Farad (Stateline)
  • Tahoe-Prosser Exchange

    • Maintain 50-70 cfs downstream from Lake Tahoe
  • Flood control in Prosser and Boca



Tahoe Prosser Exchange



Truckee River Operational Priorities

  • 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



Truckee River Operational Priorities

  • 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



COLORED WATER VIA ACCOUNTS





STORAGE ACCOUNTS



TROA (types of water)

  • Floriston Rate Water

  • Project Water

  • POSW Water

  • Imported Water

  • Additional California Environmental Credit Water

  • California Environmental Credit Water

  • California M&I Credit Water

  • Fernley Municipal Credit Water



TROA (types of water)

  • 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



TROA Credit Water Priorities

  • 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



TROA Water Spill Order

  • 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



Sources For Stampede Storage Categories With TROA



NOTWITHSTANDING

  • NOTWITHSTANDING



Potential TROA Signatories

  • U.S Department of the Interior

  • State of California

  • State of Nevada

  • Pyramid Lake Paiute Tribe

  • Sierra Pacific Power Co.

  • Fallon Paute-Shoshone Tribes

  • Truckee-Carson Irrigation District





DIADvisor – Farad





NRCS APR 1 FORECASTS - KAF

  • YEAR ACTUAL FORECST % ERR

  • 1990 27.4 30 - 9

  • 1991 50.6 50 + 1

  • 1992 17.5 38 - 117

  • 1993 258.9 195 + 25

  • 1994 32.5 50 - 54

  • 1995 469.0 260 + 45

  • 1996 304.1 210 + 31

  • 1997 249.2 310 - 24

  • 1998 314.2 270 + 14

  • 1999 284.0 235 + 17



Upper Truckee Vicinity





USGS Hydrologic Response Unit



MMS ESP Tool





ESP Forecasts





Daily Natural Flow Data

  • Bad data [Jorgeson, 2002]



Data Storage System (HEC-DSS)

  • Corps of Engineers Database

    • Excellent for time series data
    • Temporary data base until HDB in place
    • Poor for storing table data, metadata


Hydrologic Data Base (HDB) Current Research and Development

  • Database of Record

    • store base data and derive all other data
    • track all changes of data
    • able to reproduce data that decisions were made from
    • consistent view of the historical, current and future state of the system
  • “Corporate” HDB

    • keeping each database “in sync”, redundancy
  • HDB Web Access





RiverWare Models

  • Accounting

  • Forecasting

  • Scheduling

  • Planning





Water Quality Settlement Agreement



Outline of approach



Scenarios



Climate forecast



Results (cont.)



Violations and WQCW released (1988-1994)



Water Quality Modeling

  • Utilize existing basin-specific water quality models

  • Eventually provide real-time decisions

  • Operate interactively with RiverWare

    • Give example of integration between RW and other models
    • Create similarity to WaRSMP couterpart “MMS”


WQ Modeling – Coming Soon



COLORED WATER VIA ACCOUNTS



Cui-ui



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