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Nevada Irrigation District Sphere of Influence. Workshop on The Sphere of Influence Update of Nevada Irrigation District November 16, 2006. Nevada Irrigation District . Raw, Agricultural and Treated Water Service in Nevada and Placer Counties, minor service area in Yuba County

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nevada irrigation district sphere of influence
Nevada Irrigation District Sphere of Influence

Workshop on

The Sphere of Influence Update of

Nevada Irrigation District

November 16, 2006

nevada irrigation district
Nevada Irrigation District
  • Raw, Agricultural and Treated Water
  • Service in Nevada and Placer Counties, minor service area in Yuba County
  • Entire Source is Surface Water
sphere of influence requirements
Sphere of Influence Requirements

Cortese-Knox-Hertzberg Requires:

  • Commission must review Spheres every five years and update if necessary
  • Spheres cannot be updated or adopted until appropriate Municipal Service Reviews have been completed
cortese knox hertzberg requirements con t
Cortese-Knox-Hertzberg Requirements (con’t.)

Commission must consider Four Factors (Gov’t Code Section 56425):

  • Present and Planned Land Uses
  • Present and Probable Need for Facilities and Services
  • Present capacity of facilities and adequacy of services
  • Social and Economic Communities, if relevant
timely availability of water supplies
Timely Availability of Water Supplies
  • LAFCo is Required (Gov’t Code Section 56668) to Consider the Timely Availability of Water Supply
  • A Sphere Plan can make this Assessment on a District-wide Basis by Considering:
    • Water Entitlements
    • Storage Capacity
    • Treatment System
    • Distribution System
nevada lafco sphere of influence policy
Nevada LAFCo Sphere of Influence Policy
  • Sphere Planning Horizons (3 time periods)
  • Phased Annexation Plan
  • Master Service Element that demonstrates the agency’s capacity to provide services to meet the needs of population
nevada irrigation district 1983 sphere of influence
Nevada Irrigation District1983 Sphere of Influence
  • Adopted in 1983 by Nevada LAFCo (Principal County LAFCo)
  • Included District, plus islands (surrounded by District) as well as a contiguous area near Lincoln
  • Also included watershed areas in Nevada and neighboring Sierra County
  • This is the first time the NID sphere has been updated
sphere of influence update process
Sphere of Influence Update Process
  • LAFCo Prepared a Municipal Service Review (2004)
  • District began an update of its Raw Water Master Plan (2005)
  • District retained a consultant (Thomas A. Parilo & Associates from Nevada City) to work with LAFCo to prepare the sphere update (2006)
  • Placer LAFCo staff has been consulted throughout process
final steps in process
Final Steps in Process
  • Draft Report Prepared
  • CEQA Compliance – Public Circulation of Proposed Negative Declaration
  • November Workshop – To Obtain Commission Direction
  • December Hearing – To take Public Testimony and to Adopt Sphere Update
sphere update data sources
Sphere Update Data Sources
  • Municipal Service Review
  • Raw Water Master Plan
  • Urban Water Management Plan
  • Water Rights Summary
  • District Master Plans
nevada irrigation district sphere of influence 2006 update
Nevada Irrigation DistrictSphere of Influence 2006 Update
  • Establishes Sphere Horizons/Annexation Plans and Master Service Elements for
    • Treated Water
    • Raw Water
    • Upper Watershed Facilities
  • Major Service Areas in Nevada & Placer
  • Minor Service in Yuba
  • No Service in Sierra
nevada irrigation district1
Nevada Irrigation District
  • 287,000 acres
  • 18,400 Treated Water Connections
  • 5,700 Irrigation Connections
  • Raw Water for Grass Valley & Nevada City
  • Ancillary Hydro-generation and Recreation Services
nid by the numbers
NID - By the Numbers
  • 10 Storage Reservoirs
  • 7 Treatment Plants
  • 37 Storage Tanks & Reservoirs
  • 425 miles of Transport Ditches and Pipelines
  • 300 miles of Distribution Pipelines
entitlements
Entitlements
  • District’s water registry has over 50 entitlements
    • A few riparian rights
    • 22 pre-1914 rights
    • 28 post-1914 rights
state water resources control board
State Water Resources Control Board
  • Has authority over post-1914 rights
  • District has filed Statements of Diversion for the Pre-1914 and Riparian rights with the Board
  • Board is currently analyzing NID’s permits for final licensing
water supply

Source

1995

2000

2005

2010

2015

2025

Watershed Runoff

453,737

214,857

228,700

228,700

228,700

228,700

Carryover Storage

56,534

144,295

112,557

118,200

118,200

118,200

Contract Purchase

7,356

8,936

8,000

8,000

8,000

8,000

Recycled

2,856

3,200

3,000

3,200

3,400

3,800

Total

520,483

371,288

352,257

358,100

358,300

358,700

Water Supply

Source: 2005 Raw Water Master Plan

supply and demand

2005

2010

2015

2025

Supply Totals

352,257

358,100

358,300

358,700

Demand Totals

164,900

179,500

189,900

208,100

Difference

187,357

178,600

168,400

150,600

Supply and Demand

Projected Supply and Demand Comparison During Normal Runoff Years

Source: 2005 Raw Water Master Plan

the upper watershed
The Upper Watershed
  • Included as a Facilities/Resource Sphere
  • 44,600 Acres in the Canyon Creek and Middle Yuba Watersheds in Sierra and Nevada Counties
facilities
Facilities
  • 10 Reservoirs
  • Storage Capacity 280,380 AF
  • 7 Hydro-generation Facilities
  • 3 Primary Recreation Sites
    • Jackson Meadows
    • Rollins Reservoir
    • Scotts Flat Reservoir
raw water supply

Canal Service System

Total Acres

Estimated Soft Area

Estimated Service Area 2001

Projected Service Area 2027

Deer Creek

165,000

92,030

38,447

60,253

Bear River

125,000

90,159

44,837

53,712

District Total

287,000

182,000

83,284

114,348

Raw Water Supply

Existing and Potential NID Raw Service Area

Source: 2005 Raw Water Master Plan

treated water
Treated Water
  • Began providing in late fifties
  • 18,500 connections in 2005 (14,750 AF)
  • 28,343 connections in 2025 (26,900 AF)
treated service areas in nevada county
Treated Service Areas in Nevada County

Main water treatment plants in Nevada County

  • Lake Wildwood – 4 MGD (5.5 MGD in 2010)
  • Elizabeth George – 10 MGD (24 MGD in 2008)
  • Loma Rica – 8 MGD (12 MGD in 2012)
  • Lake of the Pines – 5 MGD (expanded in 2003)
treated water service in placer county
Treated Water Service in Placer County

Main water treatment plants in Placer County

  • North Auburn – 6 MGD
  • Proposed Lincoln –
    • First Phase – 10 MGD (2008-2010)
    • Second Phase – 20 MGD (2020+)
annexation plans
Annexation Plans

The Treated Water Islands

  • 518 Parcels
  • 1,528.8 Acres
  • Most within City Spheres

With the exception of Lincoln, no plans for expanding the exterior boundary

annexation plans1
Annexation Plans

The Raw Water Islands

  • 870 Parcels
  • 17,608 Acres

All are well beyond City Spheres

programmatic annexations
Programmatic Annexations
  • Grass Valley
    • Hills Flat
    • Highway 174
  • Nevada City
    • Indian Flat/Cement Hill Road
  • Others
lincoln
Lincoln
  • Most of City currently served by PCWA
  • Some City lands within NID boundaries
  • City of Lincoln is updating its General Plan
  • City will ask Placer LAFCo to expand its Sphere of Influence
slide35
Some of proposed expansion area is within NID boundaries (some is within the sphere)
  • Anticipated connections—10,373 in 2025
  • Agreement terms and funding sources to be determined
nid s sphere of influence recommendations
NID’s Sphere of Influence Recommendations
  • Maintain 1983 Sphere Boundary with exceptions:
    • Remove connecting corridors to upper watershed areas
    • Remove RCO lands in Smartville
    • Remove 4 areas that constitute expansion
nid s sphere recommendations con t
NID’s Sphere Recommendations (Con’t)
  • Adopt time horizons as shown on the following maps
  • Retain the upper watershed facilities lands in the Sphere in an undesignated time horizon
  • Review and Update the Plan as needed in 2011
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