DOCSLIB.ORG

Water Supply Assessment and Verification Report

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Water Supply Assessment and Verification Report Water Supply Assessment and Verification Report Newland Sierra Specific Plan December 2015 (Revised - July 2016) Prepared for Vallecitos Water District This page is intentionally left blank. Water Supply Assessment and Verification Report Newland Sierra Specific Plan Contents 1 Purpose ............................................................................................................................................... 1 2 Findings ............................................................................................................................................... 3 3 Project Description .............................................................................................................................. 5 4 Vallecitos Water District .................................................................................................................... 11 5 Historical and Projected Water Demands ......................................................................................... 13 5.1 Demand Management ............................................................................................................. 14 5.1.1 BMP Categories ......................................................................................................... 14 5.1.2 Senate Bill X 7-7 ......................................................................................................... 16 6 Existing and Projected Supplies ........................................................................................................ 19 6.1 Metropolitan Water District ...................................................................................................... 19 6.2 San Diego County Water Authority ......................................................................................... 20 6.2.1 Preferential Rights ...................................................................................................... 22 6.3 Local Water Agreements ......................................................................................................... 22 6.4 Vallecitos Water District .......................................................................................................... 22 6.4.1 Demonstrating the Availability of Sufficient Supplies and Plans for Acquiring Additional Supplies ..................................................................................................... 22 7 Conclusions: Availability of Sufficient Supplies ................................................................................. 25 Tables Table 3-1. Proposed Components of Newland Sierra Development Project ................................................ 7 Table 3-2. Projected Water Demand for Newland Sierra Development Project ........................................... 7 Table 3-3. 1979 County General Plan Zoning and 2008 Projected Water Demands for Study Area .................................................................................................................................................. 8 Table 5-1. Past, Current, and Projected Annual Water Use (AF) ............................................................... 13 Table 5-2. BMP Category 1 Description ..................................................................................................... 15 Table 6-1. Historic Imported Water Deliveries for Vallecitos Water District ................................................ 23 Table 7-1. Vallecitos Water District Projected Water Supply and Demand During Normal Year (AF) ................................................................................................................................................ 25 Table 7-2. Vallecitos Water District Projected Water Supply and Demand During Single Dry Year (AF) ................................................................................................................................................ 26 Table 7-3. Vallecitos Water District Projected Water Supply and Demand During Multi Dry Year Period (AF) ..................................................................................................................................... 26 Figures Figure 3-1. Proposed Newland Sierra Development Project Site Plan ....................................................... 6 Figure 3-2. 1979 County General Plan Zoning for Study Area ..................................................................... 9 Figure 5-1. Vallecitos Water District Conservation Compliance Targets ................................................... 17 Figure 6-1. Water Authority Supply Mix, Actual 1991, Estimated 2013, and Planned 2020 and 2035 ............................................................................................................................................... 21 (Revised - July 2016) | i Water Supply Assessment and Verification Report Newland Sierra Specific Plan Appendices Appendix A Newland Sierra Water Demand Estimate Dated 3/23/2016 Appendix B SDCW0A 2014 Annual Water Supply Report ii | (Revised - July 2016) Water Supply Assessment and Verification Report Newland Sierra Specific Plan 1 Purpose This Water Supply Assessment and Verification (WSA&V) Report has been prepared by the Vallecitos Water District (District) in consultation with the San Diego County Water Authority (Water Authority) and the County of San Diego pursuant to Public Resources Code Section 21151.9, and California Water Code Sections 10631, 10657, 10910, 10911, 10912, and 10915, referred to as SB 610, and Business and Professions Code Section 11010 and Government Code Sections 65867.5, 66455.3, and 66473.7, referred to as SB 221. SB 610 and SB 221 amended state law, effective January 1, 2002, to improve the link between information on water supply availability and certain land use decisions made by cities and counties. SB 610 requires that the water purveyor of the public water system prepare a water supply assessment to be included in the environmental documentation of certain proposed projects. SB 221 requires affirmative written verification from the water purveyor of the public water system that sufficient water supplies are available for certain residential subdivisions of property prior to approval of a tentative map. The County has requested that the District prepare both the Water Supply Assessment and Water Verification for the proposed Newland Sierra Development (Project), which is located within the County of San Diego and within the Vallecitos Water District service area. This WSA&V Report is intended for use by the County in its evaluation of the Project under the California Environmental Quality Act (C EQA) process. This WSA&V Report evaluates water supplies that are or will be available during normal, single-dry, and multiple-dry water years during a 20-year projection to meet existing demands, expected demands of the Project, and reasonably foreseeable planned future water demands served by the District. In March of 2005, a WSA&V Report was prepared and approved by the District Board of Directors for the Merriam Mountains Specific Plan (SP 04 06) development project. The applicant for the development later submitted substantial revisions to the location and extent of proposed land uses, thereby necessitating an update that was prepared in 2006. The project has now been revised to become the Newland Sierra Development project and the County has requested a new water supply assessment. The Project Description is provided in Section 3 of this WSA&V Report. (Revised - July 2016) | 1 Water Supply Assessment and Verification Report Newland Sierra Specific Plan This page is intentionally left blank. 2 | (Revised - July 2016) Water Supply Assessment and Verification Report Newland Sierra Specific Plan 2 Findings The WSA&V Report identifies that the water demand projections for the proposed project are included in the water demand forecasts within the Urban Water Management Plans (UWMP) and other water resources planning documents of the District, the Water Authority, and the Metropolitan Water District of Southern California (Metropolitan). Water supplies necessary to serve the demands of the proposed project, along with existing and other projected future users, as well as the actions necessary to develop these supplies, have been identified in the water supply planning documents of the District, the Water Authority, and Metropolitan. This WSA&V Report demonstrates and verifies that with development of the resources identified that there will be sufficient water supplies over a 20-year planning horizon to meet the projected demand of the proposed Project and the existing and other planned development projects within the District's service area. Based on a normal water supply year as described in the District's 2010 UWMP update, the District- estimated five-year increments for a 20-year projection indicate projected potable water supply will meet the projected water demand of 26,499 acre feet (AF) in 2015 to 34,164 AF in 2030. Based on dry year forecasts, the estimated water supply will also meet the projected water demand, during single and multiple- dry year scenarios. Supply totals for a single dry year, approximated at 19,943 AF per year to 20,455 AF per year for 2015 to 2030, respectively, would be necessary to meet demands. Multiple three-year dry period supplies are also provided for and needed to meet supply demands. The availability of sufficient imported and regional water supplies to serve existing and planned uses within the District's service area
Load more

Recommended publications
  • Open Space and Agriculture (OS)
    Part Three: General Plan Elements – Open Space and Agriculture Open Space and Agriculture (OS) A. Introduction State law requires the Open Space Element to provide plans and measures for the preservation and conservation of open-space lands, which can include open space for the preservation of natural resources; the managed production Refer to the Safety Element of resources (including agricultural lands); outdoor for Open Space recreation (including areas of historic and cultural value, related to Public areas suited for park and recreation purposes, access to Health and Safety. beaches, rivers and streams, and areas which serve as links Refer to the between major recreation and open-space reservations); Safety and Land open space for public health and safety; open space in Use Element for a support of the mission of military installations, and open discussion of space for Native American historical, cultural, or sacred military sites1. installations. Approximately five percent of the planning area is dedicated to open space, parks, and agricultural uses. Only 2.3 percent of land within the planning area remains vacant. Parks – Open Due to the highly developed nature of the community, the space lands whose City faces significant challenges in the provision of primary purpose is recreation additional open space and recreational facilities. (Institute for Local Despite a lack of vacant land, opportunities exist within the Government) urban fabric of the community to provide new recreational and open space areas. Possible solutions include: rooftop gardens; closing or converting a limited number of redundant streets for the purpose of creating mini parks, community gardens, and plazas; incorporating trail systems into utility corridors; turning vacant parcels into parks or community gardens; and the enhancement of public street rights-of-way for use as open space.
    [Show full text]
  • Biological Resources Core Area
    Sweetwater Reservoir/ San Miguel Mountains/ Sweetwater River BRCA 94 Jamul Mountains BRCA eArea.mxd Mountains/Marron Valley BRCA Project Area Proposed Proctor Valley Road Alignment Otay Lakes/Otay Mesa/ Otay Ranch RMP Preserve, Conserved Open Space and Non-Impacted LDA Otay River Valley BRCA Cores Linkages 0 1,700 3,400 Feet SOURCE: USGS 7.5-minute Topographic Map; Hunsaker 2017; SANGIS 2016 FIGURE 3-3 Biological Resources Core Area Otay Ranch Village 14 and Planning Areas 16/19 - Preserve Status Report NOTE: See Figure 6-2 for Corridor and Habitat Linkages Post Exchange and Boundary Line Adjustment Date: 2/8/2018 - Last saved by: mmcginnis - Path: Z:\Projects\j820701\MAPDOC\DOCUMENT\BTR\PreserveAppendix\Figure3_3_BioCor - Path: mmcginnis by: saved Last - 2/8/2018 Date: Otay Ranch Village 14 and Planning Areas 16/19 Otay Ranch RMP Preserve Status Report INTENTIONALLY LEFT BLANK 8207 122 February 2018 L4 R1 L4 R1 94 L3 L3 R1 L4 PRESUMPTIVE CORRIDOR Project Area R1 Proposed Proctor Valley Road Alignment Otay Ranch RMP Preserve, Conserved Open Space and Non-Impacted LDA Otay Ranch Village 13 L3 Public Lands CDFW Owned Land L3 K R E Wildlife Crossings Z U A R1 L E Upper R7 U R D C Proctor Valley Land Use Otay Project Applicant Otay Ranch Development Reservoir R7 Project Applicant Otay Ranch Preserve feCorridors.mxd Existing Wildlife Corridors Major Local Corridor for Focal Mammal and Bird Species Regional Corridor for Focal Mammal and Bird Species R2 R10 Public Lands R2 BLM R2 CDFW R10 DOD USFWS R11 R2 R8 0 1,700 3,400 Lower Otay Reservoir
    [Show full text]
  • Attachment B-4 San Diego RWQCB Basin Plan Beneficial Uses
    Attachment B-4 San Diego RWQCB Basin Plan Beneficial Uses Regulatory_Issues_Trends.doc CHAPTER 2 BENEFICIAL USES INTRODUCTION .............................................................................................................................1 BENEFICIAL USES ..........................................................................................................................1 BENEFICIAL USE DESIGNATION UNDER THE PORTER-COLOGNE WATER QUALITY CONTROL ACT ..1 BENEFICIAL USE DESIGNATION UNDER THE CLEAN WATER ACT .................................................2 BENEFICIAL USE DEFINITIONS.........................................................................................................3 EXISTING AND POTENTIAL BENEFICIAL USES ..................................................................................7 BENEFICIAL USES FOR SPECIFIC WATER BODIES ........................................................................8 DESIGNATION OF RARE BENEFICIAL USE ...................................................................................8 DESIGNATION OF COLD FRESHWATER HABITAT BENEFICIAL USE ...............................................9 DESIGNATION OF SPAWNING, REPRODUCTION, AND/ OR EARLY DEVELOPMENT (SPWN) BENEFICIAL USE ...................................................................................................11 SOURCES OF DRINKING WATER POLICY ..................................................................................11 EXCEPTIONS TO THE "SOURCES OF DRINKING WATER" POLICY................................................11
    [Show full text]
  • San Vicente Dam San Diego, California
    CASE STUDY Sika at Work Content contributed by the San Diego County Water Authority (www.sdcwa.org), the City of San Diego (www.sandiego.gov) and Petr Masek Photography (www.masekphoto.com). Sika… One Name. One Source. Worldwide. San Vicente Dam San Diego, California ISO 9001 Certificate # FM 69711 RC 14001 Certificate # RC 510999 Sika Corporation Sika Canada Inc. Sika Mexicana S.A. de C.V. 201 Polito Avenue 601 Delmar Avenue Carretera Libre Celaya Km. 8.5 Lyndhurst NJ 07071 Pointe Claire QC H9R 4A9 Fracc. Industrial Balvanera Tel: 800 933 7452 Tel: 514 697 2610 Corregidora Queretaro C.P. 76920 Fax: 800 294 6408 Fax: 514 694 2792 Tel: 52 442 2385800 www.sikausa.com www.sika.ca Fax: 52 442 2250537 San Vicente Dam • Construction Period: 2009 – 2014 Raising the Dam Layers of roller-compacted concrete 24 inches thick completely cover the down- stream side, producing a stairstepped surface. The new concrete is nearly equal in • Owner: City of San Diego San Vicente Dam, which is owned and operated by the city of volume to the original dam. • Engineer: Parsons Engineering San Diego, currently stands at 220 feet. The Water Authority will raise the dam an additional 117 feet – the tallest dam raise Additional phases of the project include a new marina, a replacement pipeline, and • Contractor: Shimmick Construction & in the United States and the tallest of its type in the world. The restoration of project construction areas. They will begin, one at a time, after the Obayashi Constructors JV raised dam will store an additional 152,000 acre-feet of water, dam raise is complete.
    [Show full text]
  • APPENDIX G Least Bell's Vireo Report
    APPENDIX G Least Bell’s Vireo Report Least Bell’s Vireo Report San Pasqual Undergrounding Project July 2016 Prepared for: City of Escondido Vista Irrigation District Bureau of Indian Affairs Prepared by: 3570 Carmel Mountain Road, Suite 300 San Diego, California 92130 Atkins Project No.: 10004195 Contents 1.0 Summary .......................................................................................................................................... 1 2.0 Introduction ..................................................................................................................................... 1 2.1 Project Description ............................................................................................................. 1 2.2 Project Location .................................................................................................................. 4 3.0 Existing Conditions ........................................................................................................................... 4 4.0 Background Information .................................................................................................................. 5 4.1 Listing and Regulatory......................................................................................................... 5 4.2 Natural History .................................................................................................................... 5 5.0 Methods ..........................................................................................................................................
    [Show full text]
  • Description of Source Water System
    CHAPTER 2 DESCRIPTION OF THE SOURCE WATER SYSTEM 2.0 Description of the Source Water System During the last 100 years, the CSD’s water system has evolved into a very complex system. It is now estimated to serve a population of 1.4 million people spread out over 370 square miles (Table 2.1). The CSD treats imported raw water and local runoff water at three City WTPs which have a combined capacity of 378 MGD. The CSD treats water by conventional technologies using coagulation, flocculation, sedimentation, filtration and disinfection. Recently, all CSD water treatment plants have been modified to provide for the addition of fluoride to the potable water supply. To ensure safe and palatable water quality, the CSD collects water samples at its reservoirs, WTPs, and throughout the treated water storage and distribution system. The CSD’s use of local and imported water to meet water demand is affected by availability, cost, and water resource management policies. Imported water availability decreases the need to carry over local water for dry years in City reservoirs. CSD policy is to use local water first to reduce imported water purchases; this policy runs the risk of increased dependence on imported water during local droughts. Table 2.1 - City of San Diego General Statistics Population (2010) 1,301,621 Population (Estimated 2014) 1,381,069 Population percent change 6.1 Land Area Square Miles 370 Population Density per Square Mile 3733 Water Distribution Area Square Miles 403 Number of Service Connections (2015) 279,102 2.1 Water Sources (Figure 2.1) Most of California's water development has been dictated by the multi-year wet/dry weather cycles.
    [Show full text]
  • HEP Letterhead Template
    HELIX Environmental Planning, Inc. 7578 El Cajon Boulevard La Mesa, CA 91942 619.462.1515 tel 619.462.0552 fax www.helixepi.com September 8, 2016 Mr. Jon Corn Grandview Community Homes, LLC 160 Chesterfield Drive, Suite 201 Cardiff, CA 92007 Subject: Biological Resources Addendum for the Grandview Pointe Project Dear Mr. Corn: At the request of Grandview Community Homes, LLC, HELIX Environmental Planning, Inc. (HELIX) has prepared this letter report to serve as an addendum to the April 2015 biological technical report (DUDEK 2015) for the Grandview Pointe Project (project) located in the City of Oceanside, San Diego County, California. The project generally consists of a 30-lot residential community. Subsequent to preparation of the April 2015 report, minor modifications have occurred to the project design and corresponding impact footprint. Additionally, new project components are currently proposed that were not addressed in the April 2015 report. The previous project in combination with the project modifications and new components are collectively referred to herein as the project and are the subject of this report. This addendum report documents the existing biological conditions within the project boundary, including the new component areas, and provides a focused analysis of potential impacts to sensitive biological resources with respect to local, state, and federal policy. This report provides the biological resources technical documentation necessary for review under the California Environmental Quality Act (CEQA) by the City of Oceanside (City) and other responsible agencies for the project. INTRODUCTION Project Location The proposed project site is located in the City of Oceanside (City) in northern San Diego County, California (Figure 1).
    [Show full text]
  • (877) 426-2010 Getting Ready for Construction on San Vicente Dam
    Emergency Storage Project San Diego County Water Authority Emergency Storage Project Spring 2009 Edition Hodges Construction Pipe Installation Progresses Time to Conserve Equipment Testing for Reaches Key Milestone for San Vicente Pipeline Water is Now Pumping Facilities Starts Soon Page 2 Page 2 Page 3 Page 4 The Emergency Storage Project is a system of reservoirs, interconnected Getting Ready for Construction on San Vicente Dam Raise pipelines, and pumping Good news for San Diego County: construction starts soon stations designed to on the San Vicente Dam Raise, the last major component make water available of the Emergency Storage Project. The San Diego County to the San Diego region Water Authority will select a contractor for the first phase of in the event of an construction on the dam raise this spring, and construction is interruption in imported expected to begin before summer. water deliveries. The San Vicente Dam Raise project will increase the height of the existing dam by 117 feet. This will more than double the The Emergency Storage reservoir’s water storage capacity. By raising the dam, the Project is part of the Water Authority will be able to store an additional 152,000 San Diego County Water acre-feet of water for two purposes: for use in emergencies Authority’s Capital if the San Diego region’s imported water supply is cut off, Improvement Program to and for storage of surplus water during wet seasons for use enhance and increase during dry seasons. the operational This first construction phase will prepare the dam for the dam- flexibility of its water raising concrete work during the next phase.
    [Show full text]
  • CAL FIRE Border Impact Statistics
    BORDER AGENCY FIRE COUNCIL The Harris Fire Year End Report 2007 1 2 What is BAFC? – The concerned citizens of the United States and Mexico formed the Border Agency Fire Council. It is a consortium of government and private entities, emergency responders, environmental specialists, law enforcement, fire protection, and elected officials. It began under emergency conditions and has proven to be an extremely successful collaboration. People are alive today because of BAFC. Threatened habitat is protected and even improved because of this program. An unprecedented bi-national mutual assistance agreement is in place and working because of this program. The members of BAFC have worked without judgment or malice toward their fellow human being. From the beginning, their motivation has been primarily to save lives and protect the sensitive habitat of the border area. Thirty-four organizations make up BAFC; a list of members is at the end of this report. The members meet quarterly during the winter and every six to eight weeks during fire season. They meet at the San Diego headquarters of the California Department of Forestry and Fire Protection (CAL FIRE) in El Cajon, California. Through collaborative effort, they have altered the environment to allow better access into the wildland for emergency responders, while respecting the natural values of the area. They have enhanced communication among emergency responders on both sides of the U.S. - Mexico border. They have reached out to people in both countries with safety messages in Spanish and English. This report provides a brief description of the many projects the Council and agencies have accomplished this year and ongoing projects started in other years yet still active today.
    [Show full text]
  • Local Rainfall and Reservoirs
    Local Rainfall and Reservoirs San Diego County Reservoirs ORANGE COUNTY RIVERSIDE COUNTY RED MOUNTAIN SAN DIEGO COUNTY RESERVOIR Fallbrook 76 DIVERSIFICATION MORRO HILL RESERVOIR Local Storage: LAKE HENSHAW Enhancing Water 15 TURNER LAKE A Vital Water Supply Reliability Vista Resource Oceanside 78 DIXON LAKE MAERKLE RESERVOIR LAKE WOHLFORD San Marcos SUTHERLAND Carlsbad San Diego Escondido RESERVOIR County’s semiarid OLIVENHAIN RESERVOIR climate means that SAN DIEGUITO Encinitas RESERVOIR 5 truly wet years are LAKE HODGES LAKE RAMONA few and far between, Solana Beach LAKE POWAY CUYAMACA and dry years are very 15 RESERVOIR Del Mar 56 Poway SAN VICENTE RESERVOIR common. Since 1976, the EL CAPITAN MIRAMAR RESERVOIR amount of local surface RESERVOIR 805 Santee water used to help meet La Jolla 52 LAKE JENNINGS annual demand has been as 67 high as 140,300 acre-feet LAKE MURRAY El Cajon 163 LOVELAND 8 RESERVOIR and as low as 4,071 acre- La Mesa feet. Consequently, runoff from 5 San Diego 94 SWEETWATER RESERVOIR BARRETT LAKE Lemon local rainwater that flows into Coronado Grove reservoirs – commonly National City MORENA 54 RESERVOIR called surface water – Chula Vista AF = acre-foot LOWER OTAY RESERVOIR represents a vital One acre-foot is but small portion of 905 approximately San Diego County’s Maerkle, Red Mountain and Morro Hill store 325,900 gallons, MEXICO treated water and do not capture local runoff. enough to supply water supply needs. 2.5 single-family Over the past 10 years, an Enhancing Water Storage households of four average of about 7 percent of the Today, the Water Authority and its mem- for a year.
    [Show full text]
  • County of San Diego Guidelines for Determining
    COUNTY OF SAN DIEGO GUIDELINES FOR DETERMINING SIGNIFICANCE EMERGENCY RESPONSE PLANS LAND USE AND ENVIRONMENT GROUP Department of Planning and Land Use Department of Public Works July 30, 2007 APPROVAL I hereby certify that these Guidelines for Determining Significance for Emergency Response Plans are a part of the County of San Diego, Land Use and Environment Group’s Guidelines for Determining Significance and were considered by the Director of Planning and Land Use, in coordination with the Director of Public Works on the 30th day of July, 2007. I hereby certify that these Guidelines for Determining Significance for Emergency Response Plans are a part of the County of San Diego, Land Use and Environment Group’s Guidelines for Determining Significance and have hereby been approved by the Deputy Chief Administrative Officer (DCAO) of the Land Use and Environment Group on the 30th day of July, 2007. The Director of Planning and Land Use is authorized to approve revisions to these Guidelines for Determining Significance for Emergency Response Plans, except any revisions to Chapter 4.0 must be approved by the DCAO. Approved, July 30, 2007 EXPLANATION These Guidelines for Determining Significance for Emergency Response Plans and information presented herein shall be used by County staff for the review of discretionary projects and environmental documents pursuant to the California Environmental Quality Act (CEQA). These Guidelines present a range of quantitative, qualitative, and performance levels for particular environmental effects. Normally
    [Show full text]
  • San Vicente Dam Raise Complete
    CONTRACTOR NEWS & VIEWS San Vicente Dam Raise Complete JULY 2014 CONTENTS SAN VICENTE dam eature F 6 RAISE COMplETE In This Issue “Topping Out” <<for SDUSD’S César E. Chávez Campus CONSTRUCTION EXPO<< 2014 Page Page 11 20 Also Inside 12Page P.S. It’s the law. Avoid Solar Assault......................14 AVOIDING THE BATTlE OF lITIGATION Are you a good decision maker?....16 America, One Nation A Contractor News, Inc Publication Publisher: Sandra C. Caples Under God Tel: (760) 466-7790• 9921 Carmel Mountain Road #231 •San Diego, CA 92129• [email protected] Contractor News and Views is published monthly. The opinions and assertions contained herein are those of the authors. Reproduction, either whole or in part, is not permitted without the express consent of the publisher. Copyright 2014 by Contractor News and Views. All rights reserved. Mike Caples : Editor Jenny Caples : Graphic Design Advertising rates are available upon request. Call Mike at (760) 466-7790. Contractor News and Views is not responsible for content in ads submitted by advertisers. TBA Want to see photos from an event? This magazine was produced by: CNV has a new photo Website! Need Sales??? CALL CNV FOR AdveRTISING OPPORTUNITIES IN SAN DIEgo’S LEADING www.contractornews.photoshelter.com CONSTRUCTION MAGAZINES! Free downloads until 8/31/14 Tel: (760) 466-7790 Just enter password: 2014 www.contractor-news.com 760.466.7790 JULY 2014 CONTRACTOR NEWS 5 HISTORIC SAN VICENTE DAM RAISE PROJECT COMPLETED The largest water storage project in San Diego County history is complete, providing the region with a critical hedge against future water shortages.
    [Show full text]