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1 Mountain Counties Region Karl Winkler, Chief, Central District Division of Planning and Local Assistance Department of Water Resources
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2Setting Western Slope of the Sierra Nevada, 43 inches annually, elevation plus snow pack, high elevation 18 MAF/yr avg. R.O. (orographic, elevation, hydroelectric, gravity, quality) Counties –Lassen, Plumas, Butte, Sierra, Yuba, Nevada, Placer, El Dorado, Amador, Alpine, Calaveras, Tuolumne, Mariposa, Madera, and Fresno Rivers – Feather, Yuba, Bear, Rubicon, American, Cosumnes, Mokelumne, Calaveras, Stanislaus, Tuolumne, Merced, Chowchilla, Fresno, and San Joaquin – DAU and PSA Urbanization – growth rate 10% vs. State average 7%; 157 TAF urban, 390 ag Population 541,710 increase to 840,025 by 2030; density; income
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3 Setting (continued) Exports/Relationships with other regions – SWP, CVP Friant-Kern, EBMUD, SFPUC Reservoir Capacity – 18,000 TAF, 10 MAF snow pack Area importance confirmed by creation of Sierra Nevada Conservancy and inclusion as an overlay area in the State Water Plan Sierra Nevada region - 65% of California’s water; 3,500 plant species; 720 species of animals; about 100 sensitive species; 50% of the State’s annual timber; and 50 million visitor days/yr; S. Yuba & NF American included in Wild and Scenic 39 Detailed Analysis Units, 3 Planning Sub-Areas
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5 Important Considerations Climate Change Delta Integrated Water Management Planning UWMP & GWMP Flood Control, stormwater projects, non project levees and other works Governor’s Proposal Agencies with statutory authority and mandatory plans In basin and out of basin use 16 MAF vs 500 TAF urban + ag Recognized overlay area uniqueness Increased need for data Disadvantaged communities Drought planning
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6 Challenges Regulation of ditch water – no cooking, drinking, brushing teeth Some ditches, flumes and pipes – 100 yrs old Second homes – variable demand; land ownership private federal low urban percentage Fractured rock groundwater – less than 10% of supply Penn Mine, Mercury, erosion from flooding, logging and development Sedimentation and nutrients a concern for salmon -Stanislaus, Tuolumne, and Merced Water supply reliability for numerous water systems
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7 Challenges (continued) Customer base is small and low housing density 300,000 increase in population by 2030 Mountain topography Limited management strategy for banking and interconnections Large number of small isolated systems Open ditch systems are old with seepage and evaporation Repairs are difficult because leakage supports vegetation and wildlife Forest fires damage flumes/ erosion / nutrients /algae Climate change potential 36% reduction in snow pack within 100 yrs.
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8 Regional Planning Water Forum Agreement Regional Water Authority Cosumnes, American, Bear, and Yuba IRWMP Yuba Accord - 17 conservation groups, agricultural interests, and state and federal agencies Sierra Nevada Ecosystem Study – Mountain Range Management Sierra Tahoe IRWMP
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9 Regional Planning (continued) NCWA IRWMP Upper Feather River IRWMP Yuba County IRWMP Mokelumne / Amador / Calaveras IRWMP Madera County IRWMP Natural Heritage Institute Sierra Meadows IRWMP
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10 Regional Planning Participants/Plans Categories : lead, member agencies, supporters, educational partners Statutory and non statutory involvement Mandatory Plans – FERC, General Plans, UWMP, GWMP, Ecosystem Restoration Plans, Fire Plans, Forest Plans, WQCP Watershed recognition Consideration of both in basin and out of basin use
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11 Cosumnes, American, Bear, and Yuba Integrated Regional Water Management Non-statutory planning: vision; guidance; objectives Incorporates statutory documents: General Plans; Forest Service Plans FERC relicensing agreements; UWMP; and Regional Water Quality Control Plans Eligibility requirement for Prop 50 & Prop 84 Agencies involved El Dorado Irrigation District, Nevada Irrigation District, Georgetown Divide PUD, Placer County Water Agency, El Dorado County Water Agency Mandatory Plans - 10 FERC plans, 4 General Plans, 4 UWMP, 13 ecosystem, fire, water quality and strategic plans
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12 Looking To The Future Climate change IRWMP – Evolving planning methodologies Flood Management Recreation and Data Management Implementation CEQA/NEPA, Regulatory, FERC Water supply, financial resources, topography, multi-interest environmentally rich area, fractured rock aquifers EID – Alder Reservoir/2.5 mile ditch lining Temperance Flat FERC licenses for 100 hydroelectric projects
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13 Looking To The Future (continued) Regional planning support from the Mountain Counties Water Resource Association TUD – Lyons Reservoir Expansion Urban growth 1800 homes/yr in Lincoln/NID, Placer, City of Lincoln South Sutter Water District’s Canal Improvement Plan Recycled Projects EID 5000 AF storage EID 5000 AF storage Auburn 5000 AF AG use proposal by 2020 Auburn 5000 AF AG use proposal by 2020 Angels Camp 300 acre feet Angels Camp 300 acre feet Calaveras County 470 acre feet Calaveras County 470 acre feet Groveland 425 acre feet Groveland 425 acre feet Sierra Conservation Center/Tuolumne County 300 acre feet Sierra Conservation Center/Tuolumne County 300 acre feet
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14 North Lahontan Region Karl Winkler, Chief, Central District Division of Planning and Local Assistance Department of Water Resources
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16Setting Extends 270 miles from Oregon to Mono County Western Boundary of the Great Basin including Nevada and parts of Utah All surface waters drain eastward 6,122 sq. mi. or 4% of California Includes portions of Modoc, Lassen, Sierra, Nevada, Placer, El Dorado, Alpine, Tuolumne, and Mono
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17 Setting (continued) High Desert and mountain crests to 11,000 ft. 24 Groundwater basins, 13 shared with Nevada and one with Oregon 99,000 people in 2000 -.25% of State 2030 – 30,000 more 40 TAF Urban, 475 TAF Ag Tourism and recreation principal economic activity Lake Tahoe is the largest reservoir
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18 Regional Activities Tahoe Sierra Integrated Regional Water Management Plan – Approx 40 Partners, Educational, Nonprofit, and Supporting Agencies; forest and fire Over 50% served considered disadvantaged South Tahoe Public Utility District – UWMP, GWMP, Drinking Water Quality Management Plan Squaw Valley Water Management Plan
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19 Regional Activities (continued) Martis Valley GWMP Markleeville Revitalization Plan Watershed and Habitat Plans Tahoe Regional Planning Agency – Habitat Conservation Plan, Muti- Species Conservation Plan, Regional Planning Truckee River Watershed Council Truckee River Water Users Group
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20 Truckee River Operating Agreement California, Nevada, TMWA, USBR, Tribe Enhance water management flexibility, water quality, endangered species, recreation, drought supply and in stream flows California – Nevada allocations Tahoe Basin – 23,000 AF CA and 11,000 AF NV Truckee Basin 32,000 AF of which 10,000 AF is Surface Water for Ca and the rest Nevada
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21Challenges Northern portion chronic shortages – dry years limited acreage – groundwater problematic - capacities diminish rapidly during dry conditions Truckee River Operating Agreement – finalization – implementation Walker River – litigation/Walker lake flows and salinity (13000 ppm TDS)/LCT Septic tanks Susanville, MTBE contamination Lake Tahoe/STPUD, Truckee River TMDL LRWQCB, Tahoe clarity – nutrients and road maintained Road Maintenance Watershed management USFS’s Lake Tahoe Basin Management Unit
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22 Looking To The Future Representation for Walker River Implementation for TROA Coordination with federal watermasters Truckee, Carson, Walker Some need for municipal and irrigation systems for the northern portion Honey Lake and Long Valley GWMP to be managed; Surprise Valley (Modoc) GWMP development Regional Planning Prop 84 and Prop 1E Climate Change and Data Management
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23 QUESTIONS?
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