Post on 26-Mar-2015
Nevada Irrigation District Nevada Irrigation District Sphere of InfluenceSphere of Influence
Workshop on Workshop on
The Sphere of Influence Update of The Sphere of Influence Update of
Nevada Irrigation DistrictNevada Irrigation District
November 16, 2006November 16, 2006
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
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.)
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 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
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 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
Adopted in 1983 by LAFCo
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
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 Municipal Service Review Raw Water Master Plan Urban Water Management Plan Water Rights Summary District Master Plans
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 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
10 Storage Reservoirs 7 Treatment Plants 37 Storage Tanks & Reservoirs 425 miles of Transport
Ditches and Pipelines 300 miles of Distribution
Pipelines
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
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 Storage56,534
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
Total520,4
83371,28
8352,25
7358,10
0358,30
0358,70
0
Source: 2005 Raw Water Master Plan
Supply and Demand
Projected Supply and Demand Comparison During Normal Runoff Years
Source: 2005 Raw Water Master Plan
2005 2010 2015 2025
Supply Totals 352,257 358,100 358,300 358,700
Demand Totals164,900 179,500 189,900 208,100
Difference 187,357 178,600 168,400 150,600
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
10 Reservoirs Storage Capacity 280,380 AF 7 Hydro-generation Facilities 3 Primary Recreation Sites
Jackson Meadows Rollins Reservoir Scotts Flat Reservoir
French Reservoir, elevation 6,835 feet - the highest
of NID's 10 reservoirs
Raw Water Supply
Source: 2005 Raw Water Master Plan
Existing and Potential NID Raw Service Area
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
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
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
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
The Treated Water Islands 518 Parcels 1,528.8 Acres Most within City SpheresWith the exception of Lincoln, no
plans for expanding the exterior boundary
Annexation Plans
The Raw Water Islands 870 Parcels 17,608 AcresAll are well beyond City Spheres
Programmatic Annexations
Grass Valley Hills Flat Highway 174
Nevada City Indian Flat/Cement Hill Road
Others
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
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
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)
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