Town of Hillsborough

Town of Hillsborough

2005

URBAN WATER MANAGEMENT PLAN

Table of Contents

Introduction 64

Definitions 75

Section 1 Agency Coordination 97

Section 2 – Contents of Plan 1311

Step One: Appropriate level of planning for size of agency 1311

Step Two: Service Area Information with 20 Year Projections 1513

Step Three: Water Sources 1715

Step Three: Water Sources - Groundwater 2119

Step Four: Reliability of Supply 2321

Step Five: Transfer and Exchange Opportunities 2725

Step Six: Water Use by Customer-Type - Past, Current and Future 2927

Step Seven: Demand Management Measures 3331

1. Description of Implemented or Planned DMMs 3331

2. Schedule of Implementation 3331

3. Methods to Evaluate Measure’s Effectiveness 3432

4. Estimate of Conservation Measure Savings 3533

BMP #1 [DMM #1]: Residential Water Surveys 3634

BMP #5: [DMM #6]: Clothes Washer Rebates 3734

BMP #6: [DMM #7]: Public Information Program 3836

BMP #13: ET Controller Rebates 3936

BMP #14: Xeriscape Education 4038

BMP #16: Promote Water Efficient Landscaping 4139

Section 2 - Contents of UWMP 4341

Step Eight: Evaluation of DMMs Not Implemented 4341

Step Nine: Planned Water Supply Projects and Programs 4745

1) Description Of Water Supply From SFPUC 4745

2) Description of WSIP and PEIR 4745

3) Program Environmental Impact Report (PEIR) 4846

Step Ten: Development of Desalinated Water 5149

Step Eleven: Current or Projected Supply Includes Wholesale Water 5351

Shortage Allocation Plan 5351

Supply Assurance 5452

Section 3 - Determination of DMM Implementation 5755

DMM Implementation Schedule 5755

Section 4 - Water Shortage Contingency Plan 5957

Step One: Stages of Action 5957

Step Two: Estimate of Minimum Supply for Next Three Years 6361

Step Three: Catastrophic Supply Interruption Plan 6563

Step Four: Prohibitions, Penalties and Consumption Reduction Methods 6967

Step Five: Analysis of Revenue Impacts of Reduced Sales During Shortages 7169

Step Six: Draft Ordinance and Use Monitoring Procedure 7371

Declaration of Water Shortage Emergency 7371

No Water Waste Ordinance 7472

Section 5 - Recycled Water Plan 7775

Section 6 - Water Quality Impacts on Reliability 7977

PROTECTING SFPUC’S WATER SOURCES 7977

PROTECTING HILLSBOROUGH’S LOCAL WATER SUPPLY 7977

Section 7 - Water Service Reliability 8179

Step One: Projected Normal Water Year Supply and Demand 8179

Step Two: Projected Single-Dry Year Supply and Demand Comparison 8381

Step Three: Projected Multiple-Dry-Year Supply and Demand Comparison 8583

Section 8 - Adoption and Implementation of UWMP 8785

Tables and Figures

(Table 1) Coordination with Appropriate Agencies 8

(Table 2) Population - Current and Projected 14

(Table 3) Climate 14

(Table 4) Current and Planned Water Supplies AF/yr 16

(Table 5) Supply Reliability – AF/yr 23

(Table 6) Past, Current and Projected Water Deliveries 28

(Table 7) Additional Water Uses and Losses – AF/Year 30

(Table 8) Results of Conservation Measures Evaluation: 34

(Table 9) Results of Evaluation of Conservation Measures Not Implemented 43

(Table 10) Level of System Wide Reduction in Water Use Required 52

(Table 11) Water Supply Shortage Stages and Conditions 58

(Table 12) Consumption Reduction Methods 68

(Table 13) Actions and Conditions that Impact Revenues 70

(Table 14) Actions and Conditions that Impact Expenditures 70

(Table 15) Proposed measures to overcome revenue impacts 70

(Table 16) Proposed measures to overcome expenditure impacts 70

(Table 17) Demand Projections by Source Comparison (AF/yr.) 80

(Table 18) Projected Supply & Demand Comparison during single-dry-year 82

(Table 19) Projected Supply & Demand Comparison during multiple-dry-year 84

Figure A: Summary of WSIP Projects 47

Figure B: Flowchart – Water Shortage Event Procedures 65

Figure C: Flowchart – Water Contamination Event Procedures 66

Appendix A – Existing Municipal Code 8789

Appendix B – Interim Water Shortage Allocation Plan 8995

Introduction

California Water Code §10644(a) requires urban water suppliers to file with the Department of Water Resources (DWR), the California State Library, and any city or county within which the supplier provides water supplies, a copy of its Urban Water Management Plan (UWMP), no later than 30 days after adoption. Urban water suppliers are required to file an UWMP at least once every five years on or before December 31, in years ending in five and zero.

The 2005 UWMP is due December 31, 2005. All urban water suppliers as defined in Section 10617 (including wholesalers), either publicly or privately owned, providing water for municipal purposes either directly or indirectly to more than 3,000 customers or supplying more than 3,000 acre-feet annually are required to prepare an UWMP.

A complete UWMP could be a foundation document and source of information for a Water Supply Assessment and a Written Verification of Water Supply. An UWMP also serves as:

· A long-range planning document for water supply,

· Source data for development of a regional water plan, and

· A source document for cities and counties as they prepare their General Plans.

· A key component to Integrated Regional Water Management Plans.

General Plans and UWMP’s may be linked, as their accuracy and usefulness are interdependent. Therefore cities, counties, and public and private water suppliers will find it useful to work closely when developing and updating these planning documents. Cities, counties, water districts, property owners, and developers will all be able to utilize the UWMP when planning for and proposing new projects.

UWMP’s are reviewed by DWR staff to determine whether or not they are complete pursuant to the Urban Water Management Planning Act. Agencies subject to the Act must have adopted a complete UWMP that meets the requirements of the law and submitted it to DWR to be eligible for drought assistance or to receive funds through DWR. Results of the DWR review are provided to urban water suppliers through a review letter. The agency may wish to use the review letter to revise their UWMP for re-submittal. DWR provides a Legislative Report to the California Legislature one year after UWMP’s are due to the Department, detailing the status of and outstanding elements of the UWMP’s. The Department also prepares reports and provides data for any legislative hearings designed to consider the effectiveness of the submitted UWMP.

DWR has updated these worksheets included in this Guidebook for the 2005 UWMP and posted them on the DWR Office of Water Use Efficiency web site at: http://www.owue.ca.gov/.

If you have questions regarding the Urban Water Management Planning Act, please contact:

· San Joaquin District, Luis G Avila, (559) 230-3364,

· Southern District, Sergio Fierro, (818) 543-4652,

· Central District, Kim E Rosmaier, (916) 227-7584,

· Northern District, Gene Pixley, (530) 529-7392,

· Headquarters, David Todd, (916) 651-7027,

· Headquarters, Chriss Fakunding, (916) 651-9673,

Definitions

Water Code section 10611-10617

10611.5. "Demand management" means those water conservation measures, programs, and incentives that prevent the waste of water and promote the reasonable and efficient use and reuse of available supplies.

10612. "Customer" means a purchaser of water from a water supplier who uses the water for municipal purposes, including residential, commercial, governmental, and industrial uses.

10613. "Efficient use" means those management measures that result in the most effective use of water so as to prevent its waste or unreasonable use or unreasonable method of use.

10614. "Person" means any individual, firm, association, organization, partnership, business, trust, corporation, company, public agency, or any agency of such an entity.

10615. "Plan" means an urban water management plan prepared pursuant to this part. A plan shall describe and evaluate sources of supply, reasonable and practical efficient uses, reclamation and demand management activities. The components of the plan may vary according to an individual community or area's characteristics and its capabilities to efficiently use and conserve water. The plan shall address measures for residential, commercial, governmental, and industrial water demand management as set forth in Article 2 (commencing with Section 10630) of Chapter 3. In addition, a strategy and time schedule for implementation shall be included in the plan.

10616. "Public agency" means any board, commission, county, city and county, city, regional agency, district, or other public entity.

10616.5. "Recycled water" means the reclamation and reuse of wastewater for beneficial use.

10617. "Urban water supplier" means a supplier, either publicly or privately owned, providing water for municipal purposes either directly or indirectly to more than 3,000 customers or supplying more than 3,000 acre-feet of water annually. An urban water supplier includes a supplier or contractor for water, regardless of the basis of right, which distributes or sells for ultimate resale to customers. This part applies only to water supplied from public water systems subject to Chapter 4 (commencing with Section 116275) of Part 12 of Division 104 of the Health and Safety Code.

Section 1 - Agency Coordination

Water Code section 10620

10620. (a) Every urban water supplier shall prepare and adopt an urban water management plan in the manner set forth in Article 3 (commencing with Section 10640).

(b) Every person that becomes an urban water supplier shall adopt an urban water management plan within one year after it has become an urban water supplier.

(c) An urban water supplier indirectly providing water shall not include planning elements in its water management plan as provided in Article 2 (commencing with Section 10630) that would be applicable to urban water suppliers or public agencies directly providing water, or to their customers, without the consent of those suppliers or public agencies.

(d) (1) An urban water supplier may satisfy the requirements of this part by participation in area wide, regional, watershed, or basin wide urban water management planning where those plans will reduce preparation costs and contribute to the achievement of conservation and efficient water use.

(2) Each urban water supplier shall coordinate the preparation of its plan with other appropriate agencies in the area, including other water suppliers that share a common source, water management agencies, and relevant public agencies, to the extent practicable.

(e) The urban water supplier may prepare the plan with its own staff, by contract, or in cooperation with other governmental agencies.

(f) An urban water supplier shall describe in the plan water management tools and options used by that entity that will maximize resources and minimize the need to import water from other regions.

Water Code section 10617

NOTE: The UWMP Act requires certain information be included in an Urban Water Management Plan (UWMP). When the law requires a description of an activity, or the identification of a water supply, or asks for quantity or quality, or request other data, your UWMP should contain a complete response. In reviewing an UWMP for completeness, DWR will review each UWMP section and will enter the information in the Review Sheet tables and answer the Review Sheet questions. However, providing the information necessary to complete the Review Sheets does not necessarily meet the requirements of the law.

Section 1 - Agency Coordination

Water Provider which will become Urban Water Supplier before 2010 (§ 10620 (b))

This section does not apply to the Town of Hillsborough as it serves a population greater than 3,000.

Wholesaler UWMP Options (§ 10620 (c))

The Town of Hillsborough is a retail water agency. It has agreed to participate in regional UWMP with the San Francisco Public Utilities Commission (SFPUC) and the Bay Area Water Conservation and Supply Association (BAWSCA). The Town will adopt the Regional UWMP when it is submitted to it upon completion by the SFPUC.

Coordination with Appropriate Agencies (§ 10620 (d))

The Town of Hillsborough has actively participated in the regional UWMP through BAWSCA and the SFPUC. These agencies have retained Maddus Water Management as consultants to compile data from all BAWSCA member agencies and developed Demand Side Management Least Cost Planning Decision Support System, (referred hereinafter as the DSS model) a computer program which uses data from BAWSCA agencies and the SFPUC to generate the projections for demand and consumption used in this Plan.

Coordination with Appropriate Agencies (Table 1)

Check at least one box per row / Participated in UWMP development / Commented on the draft / Attended public meetings / Contacted for assistance / Received copy of draft / Sent notice of intention to adopt / Not Involved / No Information
SFPUC / X / X / X
BAWSCA / X / X / X / X / X

UWMP Preparation (§ 10620 (e))

The Town of Hillsborough used in-house staff to prepare its UWMP. It received considerable assistance from the SFPUC, BAWSCA and Maddus Water Management to produce a document that supports the regional UWMP.

Describe Resource Maximization / Import Minimization Plan (§10620 (f))

The DSS model was prepared with the regional UWMP in mind. All BAWSCA agencies collaborated in the production of this material with the SFPUC. They have also submitted Demand Management Measurements (DMM) appropriate for each agency to create an integrated approach to maximize the efficient use of water resources for the regional UWMP.

Section 1 - Agency Coordination

Water Code Section 10621

10621. (a) Each urban water supplier shall update its plan at least once every five years on or before December 31, in years ending in five and zero.

(b) Every urban water supplier required to prepare a plan pursuant to this part shall notify any city or county within which the supplier provides water supplies that the urban water supplier will be reviewing the plan and considering amendments or changes to the plan. The urban water supplier may consult with, and obtain comments from, any city or county that receives notice pursuant to this subdivision.

(c) The amendments to, or changes in, the plan shall be adopted and filed in the manner set forth in Article 3 (commencing with Section 10640).
Section 1 – Agency Coordination

Due Date for UWMP (§ 10621(a))