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 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