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HomeMy WebLinkAbout20 - Newport Banning Ranch Water Supply AssessmentCITY OF NEWPORT BEACH CITY COUNCIL STAFF REPORT Agenda Item No. 20 October 12, 2010 TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: Utilities Department George Murdoch, Utilities Director 949 - 644 -3011, GMurdoch @newportbeachca.gov SUBJECT: Newport Banning Ranch Water Supply Assessment ISSUE: Consider the findings of the Newport Banning Ranch Water Supply Assessment, in accordance with State Law, that the City can provide adequate water supply for the proposed Banning Ranch Development. RECOMMENDATION: Adopt the resolution, included as Attachment 1, approving the Newport Banning Ranch Water Supply Assessment. DISCUSSION: Backqround: Project Summary In December 2008, Newport Banning Ranch, LLC (NBR) submitted an application to the City for approval of a General Plan Amendment, Planned Community Development Plan, Master Development Plan and Tentative Tract Map for the development of the 401 acre Newport Banning Ranch site (project site). The entire project site is located within the Coastal Zone, and the proposed project will require Coastal Commission approval following City action on the NBR application. The NBR application proposes the preservation of approximately 252 acres of open space and development of up to 1,375 residential dwelling units, 75,000 square feet of commercial area, a 75 room resort inn, and approximately 52 acres of parks. As part of the City's review of the NBR application an EIR is being prepared in accordance with the provisions of CEQA to evaluate the environmental impacts associated with the proposed project. Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 2 Approximately 40 acres of the project site are located within the City limits, and approximately 361 acres are located outside the City limits but within the City's Sphere of Influence (SOI). If the project application is approved by the City and the Coastal Commission, an annexation and a boundary adjustment will be coordinated through the Local Agency Formation Commission (LAFCO) to extend the City limits to include the portion of the project site currently within the SOI and to extend the City's water service area to provide water to the entire project site. Background on State Law and Study Approach California Senate Bill 610 (SB 610), adopted in 2001, requires that a Water Supply Assessment (WSA) be prepared for proposed projects of more than 500 residential dwelling units evaluating water supplies that will be available to the project over a 20 year period. The evaluation needs to address water supply availability during a normal year as well as during single dry-year and multiple dry-year events. The WSA must consider existing demands as well as reasonably foreseeable planned future water demands and must use information contained in adopted Urban Water Management Plans as required by the State Urban Water Management Act. The State Urban Water Management Act, originally enacted in 1983 and subsequently amended, requires urban water suppliers to plan for adequate and reliable water supply to meet existing and future demand through the preparation of an Urban Water Management Plan (UWMP) which is required to be updated every five years. Water suppliers to the City include Municipal Water District of Orange County ( MWDOC) which receives its water supplies from Metropolitan Water District (Metropolitan). Local urban water providers, including the City of Newport Beach, are also required to prepare an UWMP to be updated every five years. Each UWMP is required to analyze the reliability of water sources available to the water provider over a 20 -year planning horizon considering normal, dry, and multiple dry years. In 2005, Metropolitan adopted a 2005 Regional Urban Water Management Plan (Regional UWMP), and MWDOC adopted a 2005 UWMP. The City subsequently adopted its 2005 UWMP which was prepared through coordination and planning with MWDOC and Metropolitan to maintain consistent assumptions in projecting supply and demand. Pursuant to the requirements of SB 610, the City has prepared the Newport Banning Ranch Water Supply Assessment (NBR -WSA), included as Attachment 2. SB 610 requires that a WSA be approved by the water provider before the lead agency takes action on a project. Because the City of Newport Beach will be the water provider if the NBR project is approved, the City Council is the appropriate body to approve the NBR - WSA. City approval of the NBR -WSA would certify that the document has been prepared in accordance with the requirements of SB 610 and that the information and o�- Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 3 findings contained in the WSA are reasonable and may be incorporated into the project Draft EIR as required by CEQA. Analysis: Preparation of the NBR -WSA relied to a large extent on information contained in the City's adopted 2005 UWMP. State Water Code Section 10910 (c) stipulates that a WSA may rely on the analysis contained in the UWMP if the proposed project was accounted for in the UWMP. The City's 2005 UWMP addresses supply and demands through 2030 and, because it was prepared prior to approval of the General Plan update in 2006, the UWMP also assumes a larger project would be developed than is currently proposed by NBR. The NBR -WSA provides information and analysis on the following topics as required by SB 610: 1. Information from the City's 2005 UWMP identifying existing water supply sources for the proposed project including sources for imported water, groundwater, and recycled water as well as other information from the City's 2005 UWMP relevant to the supply of water received by the water provider to be used by the project; 2. Identification of the projected water demand for the proposed project; and 3. Evaluation of available water supply over a 20 year time period to include an assessment of availability under the conditions of a normal year, a single dry year, and multiple dry years. In addition to the requirements of SB 610, the NBR -WSA includes a discussion of the response of water suppliers to recent events affecting future water supply including court decisions affecting state water supply allocations and the current statewide drought. 1. Summary of Water Supply and UWMPs The NBR -WSA identifies the sources of the City's water supply and provides information relevant to the supply of water received by the City to be used by the project based on information provided in the City's 2005 UWMP. The NBR -WSA also utilizes water supply information contained in the 2005 Metropolitan Regional UWMP and the 2005 MWDOC UWMP relevant to the City's water supply. Imported Water The City receives imported water from MWDOC, of which the City is a member agency. In turn, MWDOC receives much of its supply from Metropolitan, of which MWDOC is a member agency. 3 Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 4 Metropolitan's 2005 Regional UWMP contains a water supply reliability assessment with a detailed evaluation of the supplies necessary to meet demands of its member agencies, including MWDOC, over a 25 -year period in average, single dry-year and multiple -dry year periods. Metropolitan uses the Southern California Association of Governments (SCAG) regional growth forecast in calculating regional water demand projections for southern California. Groundwater The City obtains groundwater pumped from four wells owned and operated by the City and managed by Orange County Water District (OCWD.) The City's wells are located in the City of Fountain Valley, approximately five miles north of Newport Beach. OCWD regulates the supply of groundwater to the City through a Groundwater Basin Management Plan that is updated every five years with the most current plan adopted in 2009. The only constraints affecting groundwater supply to the City are the pumping capacity of the wells and pumping limitations established by OCWD to maintain the groundwater basins. Recycled Water The City purchases some recycled water from OCWD. The City has programs and policies in place to promote increased recycled water use in future years including financial incentives as identified in the City's 2005 UWMP. The NBR -WSA includes a summary of the historical and projected water supply for the City provided from all three of the above sources through the year 2030 based on information contained in the City's 2005 UWMP. As described in the NBR -WSA, the City's water supply from all three sources has steadily increased annually beginning with 17,820 acre feet per year in 2005 and is projected to continue to increase annually up to 21,716 acre feet per year until the year 2030 with the greatest percentage increase in supply occurring from groundwater sources. The MWDOC 2005 UWMP and the City's 2005 UWMP contain a water supply reliability assessment that identifies a diverse mix of imported and local supplies necessary to meet demands over the next 25 years in average, single dry-year and multiple -dry year periods. Water demand and supply projections included in the MWDOC 2005 UWMP and the City's 2005 UWMP assumed that the NBR project would be a larger project than is included in the City's current General Plan or proposed as part of the current NBR application. Neither UWMP anticipated any substantial water shortages for the 25 year planning period. 2. Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 5 Summary of Projected Demand The City provides water and recycled water services to approximately 80,000 residents in its service area. The City currently supplies approximately 18,000 acre feet per year of potable water to approximately 26,000 accounts. Projected water demand for the City's service area is based on the City's 2005 UWMP, which assumes the project site would be developed as a larger project than is currently in the General Plan or proposed by NBR. The NBR -WSA describes the historical and projected water demands for the City service area through the year 2030. As described in the NBR -WSA, the City service area demand is projected to increase from an existing 2010 demand of 19,791 acre feet per year to 21,716 acre feet per year in the year 2030. Based on the information in the City's 2005 UWMP, the projected water supply available to the City will meet the projected water demand within the City's water service area during the planning period from 2005 to 2030. The NBR -WSA includes an estimate of water demand from the proposed project compared to the demand assumption for the project from the City's 2005 UWMP. The 2005 UWMP assumed development of the project site as a larger project with a total average annual water demand of 1,005 acre feet per year. Table 1, below describes the water demand estimate for each land use category of the proposed Newport Banning Ranch project based on demand factors for each land use provided by the City Utilities Department. Tablet, NBR Land Use Summary & Project Demands Land Use Area Density Unit Demand' Factor Average Annual Water Demands (ac) (units /ac) (gpm /ac) (gpm) (af /yr) Open Space / Conservation Areas 251.6 - - - Community & Interpretive Parks 31.7 - 2.00 63.4 102.2 Bluff Parks 20.6 - 1.20 24.7 39.8 75 -Room Visitor - Serving Resort 5.3 - 2.00 10.6 17.1 Low Density Residential 26.1 6.3 2.03 53.0 85.5 Low - Medium Density Residential 11.8 7.3 2.16 25.5 41.1 Medium Density Residential 27.2 11.3 2.53 68.8 111.0 Medium -High Density Residential 5.8 15.0 2.87 16.6 26.8 High Density Residential 19.2 38.0 6.03 115.8 186.8 Commercial 1.7 - 1.20 2.0 3.2 TOTAL 401.0 380.4 1 613.5 I Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 6 The total average annual water demand for the proposed NBR project is estimated to be 613.5 acre feet per year, or 0.55 million gallons per day (mgd), substantially less than the average 1,005 acre feet per year demand planned for in the City's 2005 UWMP. 3. Availability of Water Supply during Normal, Single Dry Year, and Multiple Dry Years The NBR -WSA includes an evaluation of estimated future normal year, single dry-year, and multiple dry-year conditions. This evaluation was derived using MWDOC's water balance computer model and includes data from the City's 2005 UWMP. The computer modeling analysis evaluated historical demand and supply over an 83 year period from 1922 to 2004. Next, the evaluation analyzed demand and supply in five year increments for a normal year and single and multiple dry year events for a twenty year period from 2010 to 2030. The modeling analysis assumes that during dry years, local supplies (groundwater) will reduce and the reliability of imported supply will increase through Metropolitan's water transfer and storage programs. As an example, during the first multiple dry year event, groundwater as a percentage of the total supply decreases from 70% during normal years to between 60% and 64 %, and imported water as a percentage of the total supply increases from 29% in a normal year to 39 %. During the third multiple dry year, the groundwater supply further decreases to between 49% and 59% and imported water increases to comprise 44% of the total supply. The evaluation demonstrated that City water supplies will be sufficient to meet future demands during single and multiple dry-year period conditions through the year 2030. Response to Recent Events and Uncertainties Affecting Water Supply In addition to the SB 610 requirements discussed above, the NBR -WSA includes a discussion of recent events and the resulting uncertainties that could affect water supply in the future. The NBR -WSA acknowledges that southern California is currently in a multiple dry-year event and discusses recent court orders that have restricted availability of water provided from the State Water Project (SWP) to water districts, including Metropolitan. The NBR -WSA includes a discussion of water conservation programs put in place by water suppliers and the City in response to these events and the likely effect these programs will have on water demand and supply in the future. In response to the drought and the court decisions affecting future State Water Supply allocations, Metropolitan and its member agencies, including MWDOC, have adopted water conservation programs designed to reduce water demand from its member agencies. Additionally, the City has recently adopted water conservation ordinances into the Newport Beach Municipal Code (NBMC) including Section 14.16, "Water Conservation and Supply Level Regulations," and Section 14.17, "Water Efficient Landscaping." NBMC Section 14.16 defines careful water management practices to ensure a reliable minimum supply of water to meet current and future supply needs. 6 Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 7 NBMC Section 14.16 creates a Water Conservation and Supply Shortage Program that establishes permanent water conservation requirements during non - shortage conditions, and further establishes four levels of water supply shortage response actions to be implemented within the City during times of declared water shortage. Mandatory permanent water conservation requirements are effective at all times. NBMC Section 14.17 requires that water conservation and water efficiency design standards be incorporated into the landscape and irrigation plans of new development projects. Implementation of the NBR project would be subject to compliance with the water conservation requirements established in the NBMC. In addition,the NBR project proposes that the following water conservation measures be adopted as development regulations to be implemented as part of all development projects within the project site: • Builders are required to use low water usage indoor appliances, showers, and toilets. • Public and /or common area men's restrooms are required to utilize waterless urinals. • Installation of "Smart Controller" irrigation systems will be required for all public and common area landscaping. • Community landscape areas will be designed on a "hydrozone" basis to group plants according to their water requirements and sun exposure. • Landscaping within public common areas will utilize native and /or drought - tolerant landscaping. It is important to note that over the past two years there has been an average 4% reduction per year in the City's demand and supply requirements, due to the drought, reduced State Water Project allocations, and as a result of increased conservation measures, a heightened public awareness and the implementation of conservation - based rate structures by water purveyors. With the City's recent adoption of water conservation measures it is anticipated that the reductions in demand and supply will continue into the future. The additional implementation of water conservation programs proposed as part of the NBR project will likely result in water demand for the NBR project which is lower than that estimated in the NBR -WSA. The recent statewide drought and court decisions affecting future State Water Supply allocations which have occurred since approval of the 2005 Regional UWMP are also addressed in the Draft 2010 Regional UWMP Update prepared by Metropolitan which is currently available for public review. The following excerpt from Metropolitan's August 17, 2010 report to its Board transmitting the Draft 2010 Regional UWMP (RUWMP) provides an overview of the document's purpose and highlights: The 2010 RUWMP satisfies all the reporting requirements mandated by the [Urban Water Management Planning] Act and provides a comprehensive summary of Metropolitan's 7 Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 8 demand and supply outlook through 2035. The key reporting points of this report are as follows: • Metropolitan has supply capabilities that would be sufficient to meet expected demands from 2095 through 2035 under average, single dry-year, and multiple dry- year hydrologic conditions. • Metropolitan has comprehensive plans for stages of actions it would undertake to address a reduction in water supplies of up to 50 percent due to catastrophic events through its Water Surplus and Drought Management (WSDM) and Water Supply Allocation Plans (WSAP). Metropolitan also developed an Emergency Storage Requirement to mitigate against potential interruption in water supplies resulting from catastrophic occurrences within the Southern California region, including seismic events along the San Andreas fault. In addition, Metropolitan is working with the state to implement a comprehensive improvement plan to address catastrophic occurrences that could occur outside of the Southern California region, such as a maximum probable seismic event in the Delta that would cause levee failure and disruption of SWP deliveries. • Metropolitan has plans for supply implementation and continued development of a diversified resource mix including programs in the Colorado River Aqueduct (CRA), State Water Project (SWP), Central Valley transfers, water use efficiency programs, local resource projects, and in- region storage that will enable the region to meet its water supply needs. The Draft 2010 Regional UWMP documents how Metropolitan, in cooperation with local water agencies including MWDOC, Orange County Water District, and the City of Newport Beach, will provide reliable water supplies sufficient to serve all retail demands throughout the 20 year planning period of the document, inclusive of average year, single dry year, and multiple- dry-year hydrologic conditions. Metropolitan is also planning a 10% buffer to address uncertainties and implementation risks. Metropolitan anticipated submittal of an adopted 2010 RUWMP to the state by December 2010, however the state has extended the due date until July 1, 2011. Effect of Approving NBR -WSA and Additional Water Supply Verification Approval of the NBR -WSA does not entitle the Newport Banning Ranch project any water rights, priority or allocation to any supply, capacity or facility, or affect the City's obligation to provide service to its existing customers or any potential future customers. City Council approval of the NBR -WSA does not constitute an entitlement to water rights or service for the project or a "will serve" commitment for water to the proposed project. The NBR -WSA is not the final water supply analysis that will be required for this project. Subsequent water supply evaluations are required for implementation of the project, as discussed below, in addition to the SB 610 WSA requirements. Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 9 SB 210 — Water Verification Report In addition to being subject to the water supply verification requirements of SB 610 pertaining to the project's CEQA documentation, the project will also be subject to similar requirements of state law pertaining to approval of the project's subdivision map. Those requirements, enacted by the state in SB 221 of 2001, require the City to condition the project's Tentative Map that a written verification be provided by the City of available water supplies as a condition of final map approval. The required written verification would need to be prepared by the City at the time in the future when the project is ready to proceed with final map recordation and would be based on long -term water supply conditions existing at the time of the verification. SB 221 verification at the time of map recordation would be based on an evaluation of long -term water supply conditions existing at the time the verification is sought. Since recordation of a final map is required prior to commencement of construction, the applicant will be required to obtain a water supply verification, containing firm assurances that water is or will be available to serve the project, before construction of the project can commence. Because the NBR project is subject to Coastal Commission approval before the project can proceed with final map recordation, the SB 221 verification is not anticipated to occur until sometime in the future. Conclusion: The NBR -WSA has been prepared in accordance with the requirements of SB 610 and as part of the NBR Project EIR pursuant to CEQA. The NBR -WSA concludes that, based on the City's 2005 UWMP, there will be adequate water supplies to meet the demands of the proposed Newport Banning Ranch project, which was assumed to be a larger project than is currently proposed by NBR, as well as existing and planned development within the City. The City's 2005 UWMP anticipates that no water shortages will occur. Additionally, the 2005 MWDOC UWMP does not project any shortages of available supply for any water providers within MWDOC's service area if projected MWDOC and member agency supplies are developed as planned. The NBR -WSA acknowledges that uncertainties, including drought and recent court decisions affecting water availability from the State Water Project, have arisen since adoption of the City's 2005 UWMP. In summary, the combination of adverse hydrologic conditions and regulatory actions that led to constraints in water supplies represent short-term, unexpected events that are beyond those envisioned in the 2005 water supply plans of the agencies. The NBR -WSA describes how the regional and local water agencies supplying Newport Beach are addressing these uncertainties in order to assure long -term water supply reliability for the City and the Southern California metropolitan region. These new challenges to water supply and the response of the water agencies to these challenges are not addressed in the 2005 UWMPs, but will be c Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 10 addressed in the 2010 UWMP updates to be prepared by Metropolitan, MWDOC, and finally the City by July 1, 2011. The conclusions of the draft 2010 RUWMP indicate that the essential conclusions regarding water supply availability in the City's 2005 UWMP remain valid despite the changed circumstances. Although the documents remain in draft form, those documents will be completed prior to the Water Verification Report for the NBR project. Approval of the NBR -WSA does not entitle the NBR project any water rights, priority or allocation in any supply, capacity or facility, or affect the City's obligation to provide service to its existing customers or any potential future customers. Further water supply analysis will be undertaken in the future before any commitment to provide water is made by the City and before the NBR project may be constructed because, in addition to being subject to the water supply assessment requirements of SB 610 pertaining to the project's CEQA documentation, the NBR project is also subject to similar requirements of state law pertaining to approval of the project's subdivision map. Those requirements, enacted by SB 221 of 2001, require the City to condition the project's Tentative Map to require written verification by the City of available water supplies as a condition of final map approval. The written verification required would be prepared by the City, at the time in the future when the NBR project is ready to proceed with final map recordation, and would be based on long -term water supply conditions existing at the time of the verification. The City must adopt the NBR -WSA prior to completion and publication of the Draft Newport Banning Ranch EIR. The information and findings of the NBR -WSA are reasonable and may be incorporated into the project EIR. Environmental Review: The NBR -WSA has been prepared in accordance with the requirements of the provisions of the State Water Code. As required by CEQA, the NBR -WSA will act as a supporting technical study document to the project Draft EIR and will be included as an appendix to the Draft EIR. The project Draft EIR will be submitted to City Council at a future date for consideration of certification. The adoption by the City of the NBR -WSA is not a final action on a project that is subject to CEQA. As provided by the Public Resources Code the NBR -WSA must be prepared and adopted within 90 days of a request for its preparation, so that it may be included in the EIR for the Project. (Water Code sections 10910, subdivision (g) and 10911, subdivision (b).) If the NBR -WSA were subject to CEQA it would be considered categorically exempt from review pursuant to CEQA Guidelines Section 15307, Class 7 (Actions by Regulatory Agencies for Protection of Natural Resources). This class provides an exemption for actions taken by regulatory agencies as authorized by state law or local ordinance which assure the maintenance, restoration, or enhancement of a 10 Newport Banning Ranch Water Supply Assessment October 12, 2010 Page 11 natural resource where the regulatory process involves procedures for protection of the environment. Public Notice: This agenda item may be noticed according to the Brown Act (72 hours in advance of the public meeting at which the Council considers this item). Prepared by: 7 tDebby Linn Planning Consultant - External Submitted by: i l e ge Murdoch Utilities Director Attachments: 1. Resolution approving the Newport Banning Ranch Water Supply Assessment 2. Newport Banning Ranch Water Supply Assessment — Sept. 2010 RESOLUTION NO. 2010- A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF NEWPORT BEACH APPROVING THE NEWPORT BANNING RANCH WATER SUPPLY ASSESSMENT. WHEREAS, Newport Banning Ranch, LLC, (NBR) has submitted an application to the City for approval of a General Plan Amendment, Planned Community Development Plan, Master Development Plan and Tentative Tract Map for the development of the 401 acre Newport Banning Ranch site which proposes the preservation of approximately 252 acres of open space and development of up to 1,375 residential dwelling units, 75,000 square feet of commercial area, a 75 room resort inn, and approximately 52 acres of parks (proposed project). WHEREAS, an Environmental Impact Report (EIR) is being prepared by the City in accordance with the provisions of California Environmental Quality Act (CEQA) to evaluate the environmental impacts associated with the proposed project. WHEREAS, California Senate Bill 610 (SB 610), adopted in 2001, requires that a Water Supply Assessment be prepared for proposed projects of more than 500 residential dwelling units evaluating water supplies that will be available to the project over a 20 year period to include an evaluation of water supply availability during a normal year as well as during single dry-year and multiple dry-year events. WHEREAS, a Water Supply Assessment must consider existing demands as well as reasonably foreseeable planned future water demands and must use information contained in adopted Urban Water Management Plans as required by the State Urban Water Management Act. WHEREAS, the City provides water to its customers with a mix of pumped water from the Orange County Groundwater Basin and imported water supplies from the Metropolitan Water District of Southern California (MWD) and will be the water service provider to the Newport Banning Ranch site pursuant to final approval of the proposed project. WHEREAS, the City has an adopted 2005 Urban Water Management Plan which anticipated a larger Newport Banning Ranch project than is proposed by NBR. WHEREAS, the City has prepared the Newport Banning Ranch Water Supply Assessment using information contained in the City's adopted 2005 Urban Water Management Plan which concludes that, there will be adequate water supplies to meet the demands of the proposed Newport Banning Ranch project, which was assumed to be a larger project than is currently proposed by NBR, as well as existing and planned development within the City and that no water shortages will occur. WHEREAS, the Newport Banning Ranch Water Supply Assessment been prepared in accordance with the requirements of the provisions of SB 610 and all other applicable provisions of the state Water Code, and will act as a supporting technical study document to the Draft EIR for the proposed project and will be included as an appendix to the Draft EIR as required by CEQA. WHEREAS, the adoption by the City of the Newport Banning Ranch Water Supply Assessment is not a final action on a project that is subject to CEQA; however, if subject to CEQA would be considered categorically exempt from review pursuant to CEQA Guidelines Section 15307, Class 7 (Actions by Regulatory Agencies for Protection of Natural Resources). WHEREAS, the Newport Beach City Council has reviewed and considered the Newport Banning Ranch Water Supply Assessment to be implemented pursuant to this Resolution, as well as the updated information provided in the accompanying staff report. NOW. THEREFORE BE IT RESOLVED: The City Council hereby approves the September 2010 Newport Banning Ranch Water Supply Assessment prepared by AECOM. ADOPTED, this 12th day of October 2010 MAYOR ATTEST: CITY CLERK 3 WATER SUPPLY ASSESSMENT Newport Banning Ranch September 2010 Prepared By: AECOM 7807 Convoy Court, Suite 200 San Diego, CA 92111 Submitted By: eorg urdo h Utilities Director City of Newport Beach City of Newport Beach Water Supply Assessment Newport Banning Ranch Table of Contents Section 1 — Introduction ................................................. ..............................1 Section2 — Purpose ....................................................... ..............................1 Section3 — Findings ...................................................... ............................... 2 Section 4 — Project Description ..................................... ............................... 5 Section 5 — City of Newport Beach ............................... .............................10 Section 6 — Historical & Projected Water Demands ...... .............................12 Section 7 — Historical & Projected Water Supplies ....... .............................15 Section 8 — Conclusion: Availability of Sufficient Supplies .........................19 SourceDocuments ........................................................ .............................24 City of Newport Beach A=COM 15 Appendices Appendix A: Project Demand Calculation California Department of Water Resources Bulletin 118, Coastal Plain of Orange County Groundwater Basin (Basin Number 8 -1) California Urban Water Conservation Council 2007 -2009 Coverage Report City Ordinance Chapter 14.16 — Water Conservation and Supply Level Regulations City / OCWD Annexation Agreement Appendix B: Metropolitan Water District of Southern California (on compact disc) 2005 Regional Urban Water Management Plan Metropolitan Water District of Southern California 2009 Bond Statement Municipal Water District of Orange County 2005 Urban Water Management Plan City of Newport Beach 2005 Urban Water Management Plan Orange County Water District 2009 Groundwater Management Plan Appendices available at City of Newport Beach Utilities Department 949 West 161h Street and www.newportbeachca.gov/BanningRanch 00098050 113anning Ranch WSA (2010A- 13)— Final. doc City of Newport Beach A=com 1( Newport Banning Ranch Water Supply Assessment Section 1 — Introduction The City of Newport Beach (City) retained AECOM USA, Inc. ( AECOM) to prepare a Water Supply Assessment (Assessment) for the Newport Banning Ranch Planned Community (Project) to satisfy the requirements set forth in Senate Bill 610 (SB 610). This Assessment has been prepared by AECOM on behalf of the City with information provided by the City, the Municipal Water District of Orange County (MWDOC), the Orange County Water District (OCWD), and the developer's engineer (Fuscoe Engineering) and landscape architect (FORMA Design). Section 2 — Purpose Effective January 1, 2002, SB 610 (codified at California Public Resources Code §21151.9, and Water Code § §10631, 10656, 10657, 10910, 10911, 10912, and 10915) and SB 221 (codified at California Business & Professions Code §11010, and Government Code § §65867.5, 66455.3, and 66473. 7) amended state law to improve the link between information on water supply availability and certain land use decisions made by cities and counties. In general, 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. Similarly, SB 221 requires affirmative written verification from the water purveyor of the public water system that sufficient water supplies are available for non - exempt subdivisions of more than 500 residential units in conjunction with (or prior to) approval of a tentative map. The proposed Project includes, among other components, more than 500 dwelling units and thus compliance with SB 610 is required. In addition, the Project requests a tentative map for more than 500 dwelling units, thus triggering compliance with SB 221. This Assessment has been prepared to only meet the requirements of SB 610, and a separate written verification report will be required at a later date in conjunction with approval of the tentative map. The City has requested the Assessment as part of the environmental review of the Project. This Assessment is intended for use by the City in its evaluation of the Project under the California Environmental Quality Act (CEQA) process. This Assessment evaluates water supplies that are or will be available during normal year, single dry-year, and multiple dry -years conditions over a 20 -year projection period, considering existing demands, expected Project demands, and reasonably foreseeable planned future water demands to be served by the City. This Assessment does not entitle the Project to service or any right, priority or allocation in any supply, capacity or facility, or affect the City's obligation to provide service to its existing customers or any potential future customers. In order to receive service, the Project applicant is required to file a complete application(s) for service with the City together with all forms, fees, plans and specifications, bonds, conveyance of necessary assessments, and meet all other requirements as specified therein. City of Newport Beach AOcom 17 Newport Banning Ranch Water Supply Assessment Section 3 — Findings Overview The water demand for the proposed Project was included in the water demand forecasts of the City, as identified by City staff and the 1999 Water Master Plan (Water Master Plan), and reflected in the 2005 Urban Water Management Plan (UWMP) and within the planning documents of MWDOC, OCWD, and the Metropolitan Water District of Southern California (Metropolitan). Water supplies necessary to serve the demands estimated for the 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 City, MWDOC, OCWD, and Metropolitan. In the previous planning documents, development of the Project site was proposed as a more intensive development with higher water demands than the Project is currently considering (the Project as currently planned has almost 1,000 less residential dwelling units). Since higher densities were considered and accounted for in the City's UWMP, the demands for the current, less intensive Project were also included. Therefore, this Assessment can rely on the demand projections in the UWMP and demonstrates that with the development of the resources identified, there will be sufficient water supplies over a 20 -year planning horizon to meet existing demands, the new estimated Project demands, and the other planned development projects within the City's water service area. As set forth in this Assessment, the City's water supply consists of imported water and groundwater. The City receives its imported water from MWDOC of which it is a member agency. In turn, MWDOC receives much of its supply from Metropolitan of which MWDOC is a member agency. The City's groundwater supply (pumped from wells owned and operated by the City) is managed by OCWD. Additionally, the City purchases some recycled water from OCWD. As such, the City and the analysis and conclusions in this Assessment rely exclusively on the water supply projections in the City's UWMP and the reliability plans of MWDOC, Metropolitan, and OCWD. During normal water supply year conditions, the City has sufficient potable resources to meet existing and projected year 2030 average annual demands. Similarly, during single dry -year and multiple dry -years conditions, the City also has sufficient potable supplies to meet the existing and projected demands. These findings are summarized in Section 8. The adequacy of potable supply is further confirmed in Metropolitan's Report on Metropolitan's Water Supplies: A Blueprint for Water Reliability (dated March 2003), which states that Metropolitan will have adequate supplies to meet dry -year demands within its service area over the next 20 years. In its 2005 Urban Water Management Plan, MWDOC determined the availability of its imported supply is expected to equate to its projected imported demand. MWDOC concluded this because in Metropolitan's Regional 2005 Urban Water Management Plan (Section I1.2 - Evaluating Supply Reliability), Metropolitan was able to show that it can maintain 100% reliability in City of Newport Beach 2 AECOM 19 Newport Banning Ranch Water Supply Assessment meeting direct consumptive demand under the conditions that represent normal, single driest, and multi -dry years through 2030. Recent Events The case ofNRDC v. Kempthorne (05 -1207, E.D.Cal.) involved an action brought by the National Resources Defense Council (NRDC) to reduce pumping out of the San Francisco Bay - Delta (Delta) in order to protect an endangered fish, the Delta Smelt. A ruling in this case was issued in August of 2007, where the court ordered pumping in the Delta to be temporarily cut back by 30% until a new Biological Opinion could be prepared. Metropolitan estimates that it was unable to receive approximately 250,000 acre -feet (af) of State Water Project (SWP) water in 2008, requiring them to pull water from storage accounts. A new Biological Opinion was submitted at the end of 2008, and the provisions are more stringent than the original cutbacks (by as much as 50% in some cases). In addition to the SWP pumping restrictions, southern California is in its third consecutive year of drought. In 2008 and 2009, Metropolitan and many local agencies, including the City, called for voluntary water use reductions. Despite these efforts, Metropolitan issued a Water Supply Allocation Plan in July 1, 2009, which initiated mandatory conservation throughout Southern California (reduction by 10 %). In this plan, delivery to a member agency of more than its allocated amount of Metropolitan supplies subjects the member agency to a penalty of from one to four times Metropolitan's full service rate for untreated Tier 2 water. In turn, MWDOC has implemented Stage 2 of their Water Supply Allocation Plan, which passes along the increased cost of imported water to its member agencies if the conservation measures are not met. In 2009, the Orange County Grand Jury issued a report entitled "Paper Water " —Does Orange County Have A Reliable Future? where they investigated if and how Orange County's cities and water districts are planning for a redistribution of water supplies away from Orange County. The reason for the investigation stemmed from news reports and warnings from water officials throughout California that raised the following concerns: (1) supply deficiencies are becoming critical due to prolonged drought, (2) the Delta court rulings have forced drastic supply cutbacks, and (3) the deteriorating water delivery infrastructure is subject to severe damage in the event of an earthquake or other natural force. In general, the Grand Jury concluded that more public awareness and process improvement regarding water issues must be made as Orange County continues to develop. Also, the many water agencies in Orange County need to strengthen their unified approach in preparing for a difficult future for Orange County's water resources. To comprehensively address the impacts of the SWP cutbacks and the drought, Metropolitan developed with its member agencies a Five -Year Supply Plan (Supply Plan) in April 2008 to identify specific resource and conservation actions to manage water deliveries under continued drought conditions and court- ordered restrictions. The Supply Plan focuses on six categories of resource options to improve Metropolitan's reliability from 2009 through 2013, summarized as follows: ❑ Water Conservation — increase and accelerate conservation savings by: (1) increasing outreach to heighten public awareness of the need to conserve water, (2) motivate City of Newport Beach A=GOM I? Newport Banning Ranch Water Supply Assessment conservation by increasing resources and support for water use ordinances and conservation - based rate structures, and (3) accelerate the installation of water efficient devices. u Colorado River Transactions — pursue additional supplies along the Colorado River. Metropolitan estimates the following programs could provide an additional 140,000 of of Colorado River Aqueduct (CRA) supply in 2009 with potential increases the following years: • Emergency short-term fallowing program with Palo Verde Irrigation District. • Participation with the Bureau of Reclamation in pilot operation of the Yuma Desalting Plant. • Expansion of the 2004 storage and interstate release agreement with the Southern Nevada Water Authority. • Exchange and advance delivery agreement with the Coachella Valley Water District. • Water exchange with Arizona and fallowing program with the California Indian tribes. ❑ Near -Term Delta Actions — develop measures that protect fish species and reduce supply impacts, such as habitat and hatchery projects, and physical and operational actions with the goal of reducing conflicts between water supply conveyance and environmental needs. ❑ SWP Transactions — through the California Department of Water Resources' Drought Water Bank, facilitate transfers from willing sellers located upstream of the Delta to buyers through the SWP and Central Valley Project. Metropolitan took delivery of 29,000 of from the Drought Water Bank in 2009. • Groundwater Recovery — increase supply through groundwater that requires treatment and recovery for consumptive use. It is estimated that there is over 300,000 of of groundwater that could be treated and recovered in Metropolitan's service area. • Local Resources — work with member agencies to expand and /or accelerate local projects with a potential to be online within the next five years (e.g., recycled water treatment plants, groundwater recovery plants, desalination plants, and new hookups to existing recycled plants). Over 50 potential projects have been identified with an estimated total annual yield of 122,000 of by 2013. Metropolitan is also working on a 2009 Update to their Integrated Resources Plan (IRP). Through this IRP update process, Metropolitan will identify changes to the long -term plan and establish direction to address the present and future challenges brought by record drought, climate change, and environmental concerns. (For more information on recent events related to Metropolitan, please refer to their 2009 Bond Disclosure Statement, Appendix A. An electronic copy is located in Appendix B.) At a local level within Orange County, several efforts are underway to mitigate the imported supply losses and improve reliability. Phase 2 of OCWD's Groundwater Replenishment System (GWR System) project is now under design to increase production from 72,000 of per year (af /yr) to 102,000 of /yr. The initial GWR System was completed and on -line in January 2008, City of Newport Beach 4 A=COM a0 Newport Banning Ranch Water Supply Assessment and augments existing groundwater supplies by producing purified water to recharge the basin. Also, MWDOC is currently looking at two potential ocean desalination plants to produce new supplies and offset approximately 9% of the water imported into Orange County. However, it is not known when these facilities are expected to be constructed and producing water. Therefore, desalination was not considered in this Assessment. Within the City, an ordinance was adopted in December 2009 titled "Chapter 14.16 Water Conservation and Supply Level Regulations" to define careful water management practices to ensure a reliable minimum supply of water to meet current and future supply needs. The ordinance creates a Water Conservation and Supply Shortage Program that establishes permanent water conservation requirements during non - shortage conditions, and further establishes four levels of water supply shortage response actions to be implemented within the City during times of declared water shortage. A detailed summary of this ordinance is provided in Section 6. While the issues of drought, climate change, and environmental concerns will continue to provide challenges to water suppliers in California, this Assessment concludes that sufficient water exists for the Project with the development of the resources and projects discussed in the planning documents of the City's water suppliers. The water agencies involved in providing that supply are devoting considerable resources and energy to maintaining a reliable supply for customers and potential customers within their service areas. Section 4 — Project Description The Project is a 400 -acre, multi -use, planned development that is generally located north of West Coast Highway (HWY -1), east of the Santa Ana River channel, south of the Talbert Nature Preserve, and west of Superior Avenue (see Figures 4 -1 and 4 -2). Approximately 40 acres of the site are located within the incorporated boundary of the City; the remainder of the site is within unincorporated Orange County. The entire site is within the boundary of the Coastal Zone as established by the California Coastal Act. The Mesa Consolidated Water District (MCWD), located just north and adjacent to the City, has an 18 mile service area that includes the City of Costa Mesa, parts of the City, and some unincorporated sections of Orange County. The Project's north and northeast boundaries are adjacent to MCWD's service area. As shown on Figure 4 -1, the Project is located between and outside the existing service areas of the City and MCWD, but is within the City's adopted Sphere of Influence (SOI). Therefore, annexation and a boundary adjustment will be required and coordinated through the Local Agency Formation Commission ( LAFCO). The City is a full service agency which provides all public services to areas within its boundaries. LAFCO is concerned with assuring that local government boundaries are logical and that the area within local government boundaries can be provided with municipal services efficiently. LAFCO has determined that based on the City's Utilities Department assessment, the City can provide efficient and cost effective water service to the Project. City of Newport Beach 5 �OCOM a� WE Neigwrt Banning Ranch Water SupplyAssessment Figure 4 -1 — Project Vicinity Map City of Newport Beach 6 �L=Co m hh 1405 rli z a U ¢ 4a ~ems c Legend CITY OF NEWPORI -� City SOUBoundary BEACH MCWD Service Area }� City Water Service Area HyYy p } IRWD Service Area � _ Proposed Project )! PACIFIC OCEAN ! i 3 S City of Newport Beach 6 �L=Co m Newport Banning Ranch Wafer Supply assessment Figure 4 -2 —Aerial of Existing Site The Project proposes 1,375 residential dwelling units, 75,000 square feet of commercial retail, a 75 -room visitor - serving resort, parks, and open space. The planned development pattern is generally depicted on Figure 4 -3, with the proposed water system facilities shown on Figure 4 -4. City of Newport Beach 7 ALCOM Newport Banning Ranch Water Supply Assessment Figure 4 -3 — Development Plan 8� e T C 4 Y R 2 v n V d'TF ALOE Mhdende RefMxnim H•! r u•JfPlI, GF •A NRLm 9As Boueeery '.\ N WFACE OPEN SPACE l` \l Lgvl•nd Open Speref PPWCTmnsdFacpiAOi I UpRnd Open Spo<e IPl Ic smnca FACil"I < ;M ti !� hdmim CB FacLXies (OF) PUBLIC PARKS I RECREA71011 6a1 Park JCP1 i� BNRPVY(BP) -'�— I MbrpritI Pala UP) g N8170A•SEAVM0 RES0RT]RESIOENTAL - IwsnNiSanlrgR •epd /R•nb•nStl RESK)EN L Lw Pen$Ry Redden (PL) Lw -Nedum fhnsty (RI M) 'y ! Medum 0ensAy Revded Yel(AM) Ped.1dea Pp5•e `l Mtxw -use I pmnmII i -i M1,ad Ue• l KaSidantlal(MUM] 061 , Mvlel Raade =� Volbcbr Read[ - - -.� RgMesl'1bY Reswvat(on 1a 19th SBaM " "" NEWPORT BANNING RANCH FL i� Y NL i MVM � y `s A.114 UIm ,i rr 1, �1 il. r•... t i dvp Palk PLANNED COMMUNITY DEVELOPMENT PLAN 1 "Izy RIUVA city at Newport beech - Ca Nfarn)e I I I LA City of Newport Beach 8 /=C0M Newport Banning Ranch Water Supply Assessment l 4 K 2 Y Y 2 K h AC01 weurl Raton Ares Q R. "a aw i B Nn 6 d Wa NoRd Men ■ Pmmv Ret Figure 4-4 — Proposed Water Facility Plan PACIFIC � O �y NEWPORT BANNING RANCH MASTER DEVELOPMENT PLAN I I I r1l CAE Cify of Newport Beach - Calffornis L/ 01�I�n64h�wi�lL�L1i3DIn5 W IYP.bbb:�aw�M^�IalN�ybNmiEf Ml.bS�.ulni N 5:14.10V1� mW City of Newport Beach 9 A=C'OM Newport Banning Ranch Water Supply Assessment A summary of the Project land uses and associated water demands are presented in Table 4 -1. The total average annual water demand for the Project is estimated to be 613.5 of /yr, or 0.55 million gallons per day (mgd). Table 4 -1 - Land Use Summary & Project Demands Land Use Area Density Unit Demand Factor Average Annual Water Demands (ac) (units /ac) (gpmlac) (gpm) (af /yr) Open Space / Conservation Areas 251.6 - - - - Community & Interpretive Parks 31.7 - 2.00 63.4 102.2 Bluff Parks 20.6 - 1.20 24.7 39.8 75 -Room Visitor - Serving Resort 5.3 - 2.00 10.6 17.1 Low Density Residential 26.1 6.3 2.03 53.0 85.5 Low- Medium Density Residential 11.8 7.3 2.16 25.5 41.1 Medium Density Residential 27.2 11.3 2.53 68.8 111.0 Medium -High Density Residential 5.8 15.0 2.87 16.6 26.8 High Density Residential 19.2 38.0 6.03 115.8 186.8 Commercial 1.7 - 1.20 2.0 3.2 TOTAL 401.0 380.4 613.5 SOURCE: Area and land use provided by the developer's landscape architect (FORMA Design) on November 20, 2009. See Appendix A for unit water demand calculations. A review of the City's Water Master Plan shows that the current Project and associated demands are substantially less than previously planned. The original Project proposed 2,329 residential units with a total average annual water demand of approximately 1,005 of /yr, or 0.90 mgd. These previous demands for the Project were also incorporated into the City's UWMP. Therefore, the current Project water demand of 613.5 of /yr is also accounted for in the City's UWMP, upon which this Assessment relies. Section 5-- City of Newport Beach The City of Newport Beach, located along the Orange County coast of southern California, has a sphere of influence that covers approximately 50 square miles. The City is bounded to the west by the Pacific Ocean. On the north, south, and east, the City is surrounded by the cities of Huntington Beach, Laguna Beach, Irvine and Costa Mesa, respectively. The City supplies water to approximately two - thirds (36 square miles) of its sphere of influence; the remainder is served by the Irvine Ranch Water District (IRWD) and MCWD (as shown on Figure 4 -1). The City provides water and recycled water services to approximately 80,000 residents in its service area. The City currently supplies approximately 18,000 of /yr of potable water to a total of approximately 26,000 accounts. Existing and projected population estimates for the City service area are shown in Table 5 -1. City of Newport Beach 10 I Ocom P Newport Banning Ranch Water Supply Assessment Table 5 -1 — Existing & Projected Population in Service Area SOURCE: City UWMP (December 2005). The City distributes retail water supplies directly to its customers, which include residential (single and multi - family), commercial, and institutional /government users. The City does not supply water to other agencies except in the event of an emergency (through emergency interconnections with nearby agencies). The City's distribution system consists of 300 miles of pipelines, five pressure zones, five pump stations, and several reservoirs. The City has six connections along the Orange County Feeder and the East Orange County Feeder No. 2, with a total available capacity of 104 cubic feet per second (cfs). The City's water supply consists of imported water, groundwater, and recycled water, summarized as follows: Imported Water —the City purchases imported water from MWDOC, who in turn receives its water from Metropolitan. Most of this imported water supply is provided through the SWP and CRA. ❑ Groundwater — the City's groundwater supply is obtained from four wells: Dolphin Shallow Well, Dolphin Deep Well, Tamura Shallow Well, and Tamura Deep Well. These wells are supplied from the Lower Santa Ana Basin and regulated by OCWD. For 2009, the City's Basin Pumping Percentage set by OCWD is 62% (62% of the City's demands can be supplied by groundwater). OCWD regulations are described in more detail in Section 7. ❑ Recycled Water — the City began serving recycled water in 1999, obtained through an agreement with OCWD. OCWD provides water through the Green Acres Project, which has the capability to deliver up to 1,000 of /yr. The City has programs and policies in place to promote increased recycled water use in future years including financial incentives (20 percent discount off potable water rates) as identified in Section 5 the City's UWMP. Urban Water Management Plan In accordance with the California Urban Water Management Planning Act (California Water Code § §10610 et seq.), the City Council updated its 2000 UWMP in 2005. The effort involved close coordination and planning with the MWDOC and Metropolitan to ensure that supply and demand data were presented accurately. In December 2005, City Council held a public hearing and adopted the 2005 UWMP. As required by law, the City's UWMP includes projected water supplies required to meet future demands through 2030. In accordance with the requirements of California Water Code § 10910(c)(2) and California Government Code §66473.7(c)(3), information from the City's UWMP has been used to prepare this Assessment. An electronic copy of the UWMP is located in Appendix B. City of Newport Beach it AECOM ,► 2005 2010 2015 2020 2025 2030 Population 79,320 80,250 81,052 81,863 82,681 83,508 SOURCE: City UWMP (December 2005). The City distributes retail water supplies directly to its customers, which include residential (single and multi - family), commercial, and institutional /government users. The City does not supply water to other agencies except in the event of an emergency (through emergency interconnections with nearby agencies). The City's distribution system consists of 300 miles of pipelines, five pressure zones, five pump stations, and several reservoirs. The City has six connections along the Orange County Feeder and the East Orange County Feeder No. 2, with a total available capacity of 104 cubic feet per second (cfs). The City's water supply consists of imported water, groundwater, and recycled water, summarized as follows: Imported Water —the City purchases imported water from MWDOC, who in turn receives its water from Metropolitan. Most of this imported water supply is provided through the SWP and CRA. ❑ Groundwater — the City's groundwater supply is obtained from four wells: Dolphin Shallow Well, Dolphin Deep Well, Tamura Shallow Well, and Tamura Deep Well. These wells are supplied from the Lower Santa Ana Basin and regulated by OCWD. For 2009, the City's Basin Pumping Percentage set by OCWD is 62% (62% of the City's demands can be supplied by groundwater). OCWD regulations are described in more detail in Section 7. ❑ Recycled Water — the City began serving recycled water in 1999, obtained through an agreement with OCWD. OCWD provides water through the Green Acres Project, which has the capability to deliver up to 1,000 of /yr. The City has programs and policies in place to promote increased recycled water use in future years including financial incentives (20 percent discount off potable water rates) as identified in Section 5 the City's UWMP. Urban Water Management Plan In accordance with the California Urban Water Management Planning Act (California Water Code § §10610 et seq.), the City Council updated its 2000 UWMP in 2005. The effort involved close coordination and planning with the MWDOC and Metropolitan to ensure that supply and demand data were presented accurately. In December 2005, City Council held a public hearing and adopted the 2005 UWMP. As required by law, the City's UWMP includes projected water supplies required to meet future demands through 2030. In accordance with the requirements of California Water Code § 10910(c)(2) and California Government Code §66473.7(c)(3), information from the City's UWMP has been used to prepare this Assessment. An electronic copy of the UWMP is located in Appendix B. City of Newport Beach it AECOM ,► Newport Banning Ranch Water Supply Assessment Section 6 - Historical & Projected Water Demands The projected demands for the City service area are based on the City's 2005 UWMP, City staff refinements, and MWDOC Member Agency Surveys. MWDOC and Metropolitan use the most recent regional growth forecasts from the Southern California Association of Governments (SCAG) to calculate future demands within their service areas. This provides for consistency between the retail and wholesale water agency demand projections, in an effort to ensure that adequate supplies are being planned for the City's existing and future water users. SCAG's growth forecasts are based on the land use policies of its member cities, so planned growth is essentially included in the water demand forecasts of the City. The historical and projected water demands for the City service area are shown in Table 6 -1. Table 6 -1 - Historical & Projected Water Demands SOURCE: City UWMP (December 2005), City demand records. ' Includes commercial, institutional, and landscaping land uses and unaccounted -for losses. Southern California is currently in a multiple dry-year event. Due to the drought and recent regulatory restrictions on SWP allocations, Metropolitan issued a Water Supply Allocation Plan on July 1, 2009 triggering mandatory conservation throughout Southern California (reduction by 10 %). Delivery to a member agency of more than its allocated amount of Metropolitan supplies subjects the member agency to a penalty of from one to four times Metropolitan's full service rate for untreated Tier 2 water. In turn, MWDOC has implemented Stage 2 of their Water Supply Allocation Plan, which passes along the increased cost of imported water to its member agencies if the conservation measures are not met. As a result of these factors and the City's efforts to increase public awareness of the need to conserve water, Table 6 -1 shows a reduction in demands over the last two years (663 of /yr between fiscal years 06 -07 and 07 -08 and another 917 of /yr between 07 -08 and 08 -09, for an average reduction of 4.2% each year). It is anticipated that water conservation trends will continue in the future, as the City adopted a Water Conservation and Supply Level Regulations ordinance in December 2009 that has mandatory permanent water conservation requirements that are effective at all times (even during non - shortage conditions). Note that these reductions are not factored into the projections from the City's 2005 UWMP. Therefore, the 2010 through 2030 City of Newport Beach 12 �L=Com 00 Annual Demand (af /yr) Water Use Sector FY FY FY FY 2010 2015 2020 2025 2030 05 -06 06 -07 07 -08 08 -09 Residential Single Family 7,689 6,900 6,761 6,750 8,085 8,805 8,840 8,870 8,870 Residential Multi - Family 2,761 2,585 2,529 2,184 2,820 3,072 3,084 3,095 3,095 Other 7,370 9,524 9,056 8,495 8,886 9,678 9,716 9,751 9,751 Total 17,820 19,009 18,346 1 17,429 1 19,791 1 21,555 1 21,640 21,716 21,716 SOURCE: City UWMP (December 2005), City demand records. ' Includes commercial, institutional, and landscaping land uses and unaccounted -for losses. Southern California is currently in a multiple dry-year event. Due to the drought and recent regulatory restrictions on SWP allocations, Metropolitan issued a Water Supply Allocation Plan on July 1, 2009 triggering mandatory conservation throughout Southern California (reduction by 10 %). Delivery to a member agency of more than its allocated amount of Metropolitan supplies subjects the member agency to a penalty of from one to four times Metropolitan's full service rate for untreated Tier 2 water. In turn, MWDOC has implemented Stage 2 of their Water Supply Allocation Plan, which passes along the increased cost of imported water to its member agencies if the conservation measures are not met. As a result of these factors and the City's efforts to increase public awareness of the need to conserve water, Table 6 -1 shows a reduction in demands over the last two years (663 of /yr between fiscal years 06 -07 and 07 -08 and another 917 of /yr between 07 -08 and 08 -09, for an average reduction of 4.2% each year). It is anticipated that water conservation trends will continue in the future, as the City adopted a Water Conservation and Supply Level Regulations ordinance in December 2009 that has mandatory permanent water conservation requirements that are effective at all times (even during non - shortage conditions). Note that these reductions are not factored into the projections from the City's 2005 UWMP. Therefore, the 2010 through 2030 City of Newport Beach 12 �L=Com 00 Newport Banning Ranch Water Supply Assessment demands shown in Table 6 -1 could be less. The City's water conservation programs and ordinances are described in more detail below. Demand Management (Water Conservation) Demand management, or water conservation, is frequently the lowest -cost resource available to a water agency. Water conservation programs are developed and implemented on the premise that water conservation increases water supply by reducing the demand on available supply, which is vital to the optimal use of the region's supply resources. Water conservation is addressed in the City's UWMP as an element of the long -term strategy for meeting present and future water needs. The City became a member of the California Urban Water Conservation Council ( CUWCC) in August 2005. The CUWCC was created to increase urban water use efficiency statewide and assist in increasing water conservation through partnerships among urban water agencies, public interest organizations, and private entities. This consensus - building effort resulted in "Memorandum of Understanding Regarding Urban Water Conservation in California" (MOU), as amended September 16, 1999, which formalizes an agreement to implement best management practices (BMPs) for conserving water. Those signing the MOU have pledged to develop and implement fourteen BMPs if economically feasible. The City has submitted annual reports to CUWCC in accordance with the MOU that identify water demand management measures currently being implemented, or scheduled for implementation. Copies of the 2007 and 2008 reports are included in Appendix A. Water Conservation & Supply Level Regulations As a result of recent dry years and restrictions of the Delta in northern California, the City adopted an ordinance in December 2009 titled "Chapter 14.16 Water Conservation and Supply Level Regulations" (included in Appendix A). The ordinance creates a Water Conservation and Supply Shortage Program that establishes permanent water conservation requirements during non - shortage conditions and further establishes four levels of water supply shortage response actions to be implemented during times of declared water shortage. The mandatory permanent water conservation requirements are effective at all times (including during a Water Supply Shortage) and include the following restrictions on: ❑ Flow duration for non -low flow drip type or non - weather controlled landscape irrigation systems fed by potable water • Excessive runoff from landscape irrigation • Washing down hard or paved surfaces • Excessive water loss from plumbing breaks / leaks • Irrigating during a rainfall event and installation of non - weather based irrigation systems • Non - recirculating water features / commercial car washing facilities • Washing vehicles • Serving water at eating / drinking establishments City of Newport Beach 13 AECOM 30 Newport Banning Ranch Water Supply Assessment • Daily towel / linen laundering at lodging establishments • Installing single pass cooling systems on premises requesting a new water service ❑ Type of new washing machines at commercial laundries ❑ Use of water from a hydrant or at construction sites ❑ Type of new equipment installed in commercial kitchens During a Water Supply Shortage, the following are the four levels of mandatory water conservation and their requirements: ❑ Level One: • Limit outdoor watering to scheduled irrigation days • Cutbacks in water usage (up to 10 %) • Increased response time to fix broken / leaking plumbing (within 72 hours of notification from the City) • Limit filling of ornamental water features / pools (once per week) Level Two: • Further reduction in scheduled irrigation days and no watering between 9:00 a.m and 5:00 p.m. on any day • Increased cutbacks in water usage (11 -25 %) • Increased response time to fix broken / leaking plumbing (within 48 hours of notification from the City) • Increased limitations for filling of ornamental water features /pools (once every other week) ❑ Level Three: • Further reduction in scheduled irrigation days and no watering between 9:00 a.m and 5:00 p.m. on any day • Increased cutbacks in water usage (26 -40 %) • Increased response time to fix broken / leaking plumbing (within 24 hours of notification from the City) • No filling of ornamental water features / pools ❑ Level Four: • No outdoor watering • Increased cutbacks in water usage (more than 40 %) • No new potable water services / meters • Level Three broken / leaking pluming response times and water feature limitations remain the same City of Newport Beach 14 A=COM 3 Newport Banning Ranch Water Supply Assessment Section 7 — Historical & Projected Water Supplies As a member agency, the City purchases all of its imported potable water from MWDOC. As a member agency of Metropolitan, MWDOC in turn purchases its imported water from Metropolitan. The City's groundwater pumped from the Lower Santa Ana Basin is regulated by OCWD. The statutory relationships between MWDOC and its member agencies, Metropolitan and its member agencies, and OCWD and its member agencies establish the scope of the City's entitlements to potable water. Due to the City's dependency on these agencies, this Assessment includes information on the existing and projected supplies, supply programs, and related projects of MWDOC, Metropolitan, and OCWD along with the demands and supplies within the City service area. Metropolitan Water District of Southern California Metropolitan was formed in 1928 to develop, store, and distribute supplemental water in southern California for domestic and municipal purposes. As embodied in their Administrative Code § §4200 and 4201, water will be available to cities and areas within Metropolitan's legal boundaries and it is their mission to provide its service area with adequate and reliable supplies of high quality water to meet present and future needs in an environmentally and economically way. Metropolitan's 2004 IRP identifies a mix of resources (imported and local) that when implemented Metropolitan projects' will provide 100 percent reliability for full- service demands through the attainment of regional targets set for conservation, local supplies, SWP supplies, CRA supplies, groundwater banking, and water transfers. The 2004 update to the IRP included a conservative planning buffer supply to mitigate against the risks associated with implementation of local and imported supply programs. The planning buffer identified an additional increment of water that could potentially be developed if other supplies are not implemented as planned. As part of implementation of the planning buffer, Metropolitan committed to periodically evaluating supply development to ensure that the region is not over - developing supplies. If managed properly, the planning buffer is intended to help ensure that the southern California region, including Orange County, will have adequate supplies to meet future demands. In November 2005, Metropolitan adopted its 2005 Regional Urban Water Management Plan (2005 RUWMP), in accordance with state law. The resource targets included in the 2004 IRP Update serve as the foundation for the planning assumptions used in the 2005 RUWMP. Metropolitan's 2005 RUWMP contains a water supply reliability assessment that includes a detailed evaluation of the supplies necessary to meet demands over a 25 -year period in average, single dry -year and multiple -dry year periods. As part of this process, Metropolitan also uses SCAG's regional growth forecast in calculating regional water demands for southern California. As stated in Metropolitan's 2005 RUWMP, the document may be used as a source document for meeting the requirements of SB 610 until the next scheduled update is completed in 2010. In addition, the 2005 RUWMP includes a "Justification For Supplies" in its Appendix A.3 that City of Newport Beach 15 �OCOM Newport Banning Ranch Water Supply Assessment details the planning, legal, financial, and regulatory basis for including each source of supply in the plan. An electronic copy of the 2005 RUWMP is located in Appendix B. As discussed in Section 3, Metropolitan developed a Supply Plan in April 2008 to identify specific resource and conservation actions to manage water deliveries for the next five years under continued drought conditions and court- ordered restrictions. The Supply Plan focuses on water conservation, Colorado River transactions, near -term Delta actions, SWP transactions, groundwater recovery, and local resources. Metropolitan is also working on a 2009 IRP Update with the continued mission of providing adequate and reliable supplies to meet present and future needs. The update will address the emerging challenges of climate change and endangered species. Although imported sources will remain important baseline supplies, it is envisioned that conservation and new local supplies (e.g., recycling and ocean water desalination) will provide the water for growing needs. Municipal Water District of Orange County MWDOC was formed by Orange County voters in 1951 under the Municipal Water District Act of 1911 with the mission to ensure water reliability to the communities it serves. Today, 28 retail water agencies and cities rely on MWDOC for imported water. MWDOC is Metropolitan's third largest member agency and represents the interests of its client agencies. MWDOC supplies are delivered through several aqueducts, two of which (the Orange County Feeder and the East Orange County Feeder No. 2) supply the City. Prior to installing wells in 1997, the City's entire water supply was imported from MWDOC. In December 2005, the MWDOC Board of Directors adopted its 2005 Urban Water Management Plan (2005 Plan) in accordance with state law. The 2005 Plan contains a water supply reliability assessment that identifies a diverse mix of imported and local supplies necessary to meet demands over the next 25 years in average, single dry-year and multiple -dry year periods. In the 2005 Plan, no shortages were anticipated within MWDOC's service area if projected MWDOC and member agency supplies were developed as planned, and with Metropolitan's IRP implemented. The 2005 Plan includes the original larger Project demands from the City's Water Master Plan and UWMP. An electronic copy of the 2005 Plan is located in Appendix B. Orange County Water District OCWD was formed in 1933 to protect the County's water rights on the Santa Ana River and manage the underground aquifer, making optimum use of local supplies and augmenting those with imported supplies provided through the Metropolitan member agencies in the County. The use of the groundwater supply is regulated by the OCWD through a Groundwater Basin Management Plan that is usually updated every five years (the latest is dated July 2009, with an electronic copy located in Appendix B). OCWD's jurisdiction includes four main non- adjudicated groundwater basins: the La Habra Basin, the San Juan Basin, the Laguna Canyon Basin, and the Lower Santa Ana Basin (Basins). OCWD typically recharges the Basins with Santa Ana River flows, recycled water, and imported water (when available) to maintain groundwater levels. City of Newport Beach 16 AECOM J-� Newport Banning Ranch Water Supply Assessment The Basin's pumping is not operated on an annual safe -yield basis (i.e., no pumping restrictions exist). As such, the net change in storage in any given year may be positive or negative. In order to maintain the long term viability of basin supplies, OCWD sets an annual BPP (the percentage of groundwater production out of the total water demand) for each member agency that is governed through financial incentives. Pumping up to the BPP is charged a fee on a per acre -foot basis. Groundwater production above the BPP is charged at a higher rate, typically set so the cost of groundwater production above the BPP is similar to the cost of purchasing alternative supplies. Pumping agencies do not accrue individual storage rights if they pump less than the BPP, a major difference compared to most adjudicated basins. Additionally, agencies cannot transfer groundwater pumping rights. The City became a member of OCWD (with the right to draw groundwater) in August 1986. A copy of the annexation agreement is located in Appendix A. The City receives all it groundwater from the Lower Santa Ana Basin, also referred to as the Coastal Plain of Orange County Groundwater Basin (Groundwater Basin Number 8 -1), as listed in California's Bulletin 118 (included in Appendix A). The Lower Santa Ana Basin underlies a coastal alluvial plain in the northwestern portion of Orange County, and is bounded by consolidated rocks on the north in Puente and Chino Hills, on the east in the Santa Ana Mountains, and on the south in the San Joaquin Hills. It is bounded by the Pacific Ocean on the southwest and approximately by the Orange County -Los Angeles County line on the northwest, and it underlies the lower Santa Ana River watershed. Bulletin 118 identifies the Lower Santa Ana Basin as Type A, which indicates that the basin has been investigated and modeled to determine the potential effects of changes in pumping and recharge. In the Bulletin, there is no indication that the Basin is or will become overdrafted under present management. The City's groundwater supply is obtained from four wells located in the City of Fountain Valley, approximately five miles north of Newport Beach (see Figure 7 -1). The wells, constructed in 1997, are owned and operated by the City and are located at two locations known as the Dolphin Well Site and Tamura Well Site. Each site contains two wells, one shallow and one deep. The physical constraint on the groundwater supply is the pumping capacity of the wells. The only legal constraint to the groundwater supply is the BPP described above that is set by OCWD. Well design capacities are listed below. The amount of groundwater pumped from each well in the last four years is shown in Table 7 -1. • Dolphin Shallow Well — 250 horsepower (hp), 2,500 gpm at 288 feet of head. • Dolphin Deep Well —400 hp, 3,200 gpm at 384 feet of head. o Tamura Shallow Well —250 hp, 2,300 gpm at 286 feet of head. ❑ Tamura Deep Well —400 hp, 2,900 gpm at 380 feet of head. City of Newport Beach 17 I Ocom Newport Banning Ranch Water Supply Assessment Figure 7 -1 — City Well Locations s Table 7 -1 — Historical Groundwater Supplies Well Annual Amount (aftyr) FY 05-06 FY 06 -07 FY 07 -08 FY 08-09 Dolphin Shallow 239 920 3,185 2,270 Dolphin Deep 1,590 1,434 3,728 3,565 Tamura Shallow 589 825 2,870 1,883 Tamura Deep 11 140 426 4,555 3,569 Total 3,558 3,605 14,338 11,287 City of Newport Beach 18 A_COM Newport Banning Ranch Water Supply Assessment City of Newport Beach The City's 2005 UWMP contains a comparison of projected water supply and estimated demands through the year 2030. The potable water resources necessary to meet projected demands include imported water (30 %) and groundwater (70 %). Existing and projected supplies to the City are shown in Table 7 -2. Table 7 -2 — Existing and Projected Supplies Supply Annual Amount (af /yr) Source FY FY FY FY 2010 2015 2020 2025 2030 05 -06 06 -07 07-08 08 -09 MWDOC (Imported) 14,012 15,093 3,743 5,843 5,758 6,157 6,362 6,226 6,256 OC (Groundwater) 3,558 3,605 14,338 11,287 13,590 14,921 14,778 14,990 14,960 Recycled Water 250 311 265 299 443 477 500 500 500 Total 17,820 19,009 18,346 17,429 19,791 21,555 21,640 21,716 27,716 % Potable from 20% 19% 79% 66% 70% 71% 70% Groundwater SOURCE: City UWMP (December 2005), City demand records. As previously discussed with the City's demand summary (Table 6 -1), there has been an average 4% per year reduction in demands (and supply requirements) over the last two years. Because these changes post -date the City's current UWMP, these reductions are not included in the supply projections in Table 7 -2. Section 8 — Conclusion: Availability of Sufficient Supplies The City, MWDOC, Metropolitan, and OCWD have developed plans and are implementing projects and programs to ensure that the existing and future water users within the City service area have an adequate supply. In response to recent events, Metropolitan developed a Supply Plan in April 2008 to identify specific resource and conservation actions to manage water deliveries for the next five years under continued drought conditions and court- ordered restrictions. Metropolitan is also currently working on a 2009 IRP update to identify changes to the long -term plan and establish direction to address the present and future challenges brought by record drought, climate change, and environmental concerns. In addition to Metropolitan's efforts, OCWD's GWR System project was completed and on -line in January 2008, and augments existing groundwater supplies by producing purified water to recharge the Basin. Phase 2 is now under design to increase production from 72,000 of /yr to 102,000 of /yr. Within the City, the Chapter 14.16 Water Conservation and Supply Level Regulations ordinance was adopted in December 2009 that establishes permanent water conservation requirements during non - shortage conditions. City of Newport Beach 19 I Ocom 1 Newport Banning Ranch Water Supply Assessment Table 8 -1 lists existing and projected supplies within the City service area for normal year conditions. This comparison demonstrates that there will be adequate water supplies to meet the demands of the proposed Project, existing customers, and other future planned uses during normal year conditions. Table 8 -1 — Projected Water Supply and Demand (Normal Year) SOURCE: City UWMP (December 2005). Per Table 6 -1. Per Table 7 -2. Table 8 -2 provides a comparison of estimated future normal year, single dry -year, and multiple dry -years supply and demand conditions, and the data adequately demonstrates that City supplies will be sufficient to meet future demands during dry-year period conditions. The basis for the information is provided in the City's UWMP, and was derived from analyses using MWDOC's water balance computer model. The computer model simulated three variables (retail demand, local supplies, and imported supplies) over the 83 years from 1922 to 2004. The average of the 83 simulations represents the normal water year. The hydrologic conditions for 1961 and the period from 1959 to 1961 yielded the highest single -year and three -year demands for imported supply. During dry- years, it is assumed that local supplies will reduce and the reliability of imported supply will increase through Metropolitan's water transfer and storage programs. As an example, groundwater supply decreases from 70% during normal years to between 60% and 64% during the first multiple dry- year. During the third multiple dry -year, the groundwater supply further decreases to between 49% and 59 %. City of Newport Beach 20 I Ocom 3i Annual Amount (aftyr) Description 2010 2015 2020 2025 2030 Total Projected Demand ' 19,791 21,555 21,640 21,716 21,716 MWDOC (Imported) 51758 6,157 6,362 6,226 6,256 Available Supply OCWD (Groundwater) 13,590 14,921 14,778 14,990 14,960 Recycled Water 443 477 500 500 500 Total Available Supply 19,791 21,555 21,640 21,716 21,716 % Potable Supply from 70% 71 % 70% 71% 71 Groundwater Difference 0 0 0 0 0 SOURCE: City UWMP (December 2005). Per Table 6 -1. Per Table 7 -2. Table 8 -2 provides a comparison of estimated future normal year, single dry -year, and multiple dry -years supply and demand conditions, and the data adequately demonstrates that City supplies will be sufficient to meet future demands during dry-year period conditions. The basis for the information is provided in the City's UWMP, and was derived from analyses using MWDOC's water balance computer model. The computer model simulated three variables (retail demand, local supplies, and imported supplies) over the 83 years from 1922 to 2004. The average of the 83 simulations represents the normal water year. The hydrologic conditions for 1961 and the period from 1959 to 1961 yielded the highest single -year and three -year demands for imported supply. During dry- years, it is assumed that local supplies will reduce and the reliability of imported supply will increase through Metropolitan's water transfer and storage programs. As an example, groundwater supply decreases from 70% during normal years to between 60% and 64% during the first multiple dry- year. During the third multiple dry -year, the groundwater supply further decreases to between 49% and 59 %. City of Newport Beach 20 I Ocom 3i Newport Banning Ranch Water Supply Assessment Table 8 -2 - Projected Water Supply and Demand (Normal, Single Dry -Year, and Multiple Dry- Years) City of Newport Beach 21 AECOM 3S Annual Amount (aflyr) Single Dry- Multiple Dry-Years Description Normal Year Year Year Year Year 2010 Total Projected Demand 19,791 20,889 20,553 20,193 20,889 MWDOC (Imported) 5,758 8,450 7,260 8,099 8,450 Available Supply OCWD (Groundwater) 13,590 11,996 12,850 11,651 11,996 Recycled Water 443 443 443 443 443 Total Available Supply 19,791 j 20,889 j 20,553 j 20,193 20,889 % Potable Supply from 70% 59% 64% 59% 59% Groundwater Difference 0 0 0 0 0 2015 Total Projected Demand 21,555 22,751 22,376 22,155 22,751 MWDOC (Imported) 6,157 9,911 8,706 10,114 9,911 Available Supply OCWD (Groundwater) 14,921 12,363 13,193 11,564 12,363 Recycled Water 477 477 477 477 477 Total Available Supply 21,555 22,751 22,376 22,155 22,751 % Potable Supply from 71% 0 56% 0 60 /0 0 53 /0 0 56 /o Groundwater Difference 0 0 0 0 0 2020 Total Projected Demand 21,640 22,840 23,053 22,423 22,840 MWDOC (Imported) 6,362 11,314 8,978 10,771 11,314 Available Supply OCWD (Groundwater) 14,778 11,026 13,575 11,152 11,026 Recycled Water 500 500 500 500 500 Total Available Supply 21,640 22,840 23,053 22,423 22,840 % Potable Supply from 70% 49% 60% 51% 49% Groundwater Difference 0 1 0 0 0 0 City of Newport Beach 21 AECOM 3S Newport Banning Ranch Water Supply Assessment SOURCE: City UWMP (December 2005). As previously discussed in Sections 6 and 7, there has been an average 4% per year reduction in the City's demands (and supply requirements) over the last two years due to the drought, SWP cutbacks, and increased conservation through heightened public awareness and implementation of conservation -based rate structures. With the City recently adopting its water conservation ordinance, it is anticipated that these water conservation trends will continue in the future. These reductions are not reflected in the projections from the 2005 UWMP and used in this Assessment. Also, the demands shown for the single and multiple dry -year projections are larger than the normal year demands. This is likely because the preparation of the UWMP followed a very wet year (Winter 04 -05), and water was more abundant. Now, with the current cutbacks and restrictions in place, actual demands would likely be less. This Assessment demonstrates that there will be adequate water supplies to meet the demands of the proposed Project, and the existing and other planned development within the City. This conclusion is based on the supply and demand comparisons from the current UWMP, which the statute states to rely on. It is acknowledged that uncertainties have come to light since the 2005 City of Newport Beach 22 AECOM Annual Amount (aflyr) Single Dry- Multiple Dry-Years Description Normal Year Year Year 1 Year 2 Year 3 2025 Total Projected Demand 21,716 22,921 23,144 22,511 22,921 MWDOC (Imported) 61226 10,726 9,006 10,168 10,726 Available Supply OCWD (Groundwater) 141990 11,695 13,638 11,843 11,695 Recycled 500 500 500 500 500 Water Total Available Supply 21,716 22,921 23,144 22,511 22,921 % Potable Supply from 71% 52% 60% 54% 52% Groundwater Difference 0 0 0 0 0 2030 Total Projected Demand 21,716 22,921 23,170 22,519 22,921 MWDOC (Imported) 6,256 11,104 8,639 10,308 11,104 Available Supply OCWD (Groundwater) 14,960 11,317 14,031 11,711 11,317 Recycled 500 500 500 500 500 Water Total Available Supply 21,716 22,921 23,170 22,519 22,921 % Potable Supply from 71% 50% 62% 53% 50% Groundwater Difference 0 0 1 0 0 1 0 SOURCE: City UWMP (December 2005). As previously discussed in Sections 6 and 7, there has been an average 4% per year reduction in the City's demands (and supply requirements) over the last two years due to the drought, SWP cutbacks, and increased conservation through heightened public awareness and implementation of conservation -based rate structures. With the City recently adopting its water conservation ordinance, it is anticipated that these water conservation trends will continue in the future. These reductions are not reflected in the projections from the 2005 UWMP and used in this Assessment. Also, the demands shown for the single and multiple dry -year projections are larger than the normal year demands. This is likely because the preparation of the UWMP followed a very wet year (Winter 04 -05), and water was more abundant. Now, with the current cutbacks and restrictions in place, actual demands would likely be less. This Assessment demonstrates that there will be adequate water supplies to meet the demands of the proposed Project, and the existing and other planned development within the City. This conclusion is based on the supply and demand comparisons from the current UWMP, which the statute states to rely on. It is acknowledged that uncertainties have come to light since the 2005 City of Newport Beach 22 AECOM Newport Banning Ranch Water Supply Assessment UWMP. However, the present and future challenges brought by record drought, climate change, and environmental concerns are beyond the scope of this Assessment and will be addressed in the upcoming UWMPs for the City, MWDOC, and Metropolitan. The water agencies involved in providing the supply are devoting considerable resources and energy to maintaining its reliability for customers and potential customers within their service areas. City of Newport Beach 23 AEC'OM 1-IO Newport Banning Ranch Water Supply Assessment Source Documents California Department of Water Resources, Guidebook for Implementation of Senate Bill 610 and Senate Bill 221 of 2001, October 8, 2003 California Department of Water Resources, Bulletin 118 Update, October 2003 California Urban Water Conservation Council, 2007 -2008 City of Newport Beach Coverage Report City of Newport Beach, General Plan, July 25, 2006 City of Newport Beach, 2005 Urban Water Management Plan, December 2005 City of Newport Beach, Water Master Plan, December 1999 City of Newport Beach, Master Site Plan, May 2009 and Vesting Tentative Tract Map 17308 City of Newport Beach, Draft Water Conservation and Supply Level Regulations, October 2009 County of Orange, Central Orange County Integrated Regional and Coastal Watershed Management Plan, August 2007 Irvine Ranch Water District, Water Resources Master Plan, July 16, 2003 Metropolitan Water District of Southern California, Integrated Resources Plan Update, July 2004 Metropolitan Water District of Southern California, Report on Metropolitan's Water Supplies: A Blueprint for Water Reliability, March 2003 Metropolitan Water District of Southern California, 2005 Regional Urban Water Management Plan Metropolitan Water District of Southern California, 2009 Bond Statement, November 20, 2009 Municipal Water District of Orange County, 2005 Urban Water Management Plan, December 2005 Municipal Water District of Orange County, Water Rate$. Water System Operations. and Financial Information, 2005 -2008 Municipal Water District of Orange County, Understanding Water Supply Allocations and the Impacts on Orange County Customers, 2009 City of Newport Beach 24 AECOM L1 Newport Banning Ranch Water Supply Assessment Municipal Water District of Orange County, MWDOC Response to Grand Jury Report — "Paper Water"— Does Orange County Have a Reliable Future ?, September 2009 Orange County Grand Jury, "Paper Water"— Does Orange County Have a Reliable Future ?, 2008 -2009 Orange County Water District, '05 -'06 and '06 -'07 Engineer's Report on the Groundwater Conditions, Water Supply and Basin Utilization in the Orange County Water District Orange County Water District, Groundwater Management Plan 2009 Update, July 9, 2009 Water Agency Standards (Helix, Lakeside, Otay, Padre Dam, Ramona, San Dieguito, Santa Fe) WAS Guidelines, September 7, 2004 City of Newport Beach 25 AECOM _ l� Available at City of Newport Beach Utilities Department 949 West 16" Street and www.newportbeachca.gov/BanningRanch Appendix A Project Demand Calculation U Available at City of Newport Beach Utilities Department 949 West 16`h Street and www.newportbeachca.gov/BanningRanch Appendix A California Department of Water Resources Bulletin 118, Coastal Plain of Orange County Groundwater Basin (Basin Number 8 -1) qq Available at City of Newport Beach Utilities Department 949 West 16'" Street and www.newportbeachca.gov/BanningRanch Appendix A California Urban Water Conservation Council 2007- 2009 Coverage Report q( Available at City of Newport Beach Utilities Department 949 West 16`h Street and www.newportbeachca.gov/BanningRanch Appendix A City Ordinance Chapter 14.16 - Water Conservation and Supply Level Regulations ql� Available at City of Newport Beach Utilities Department 949 West 16`" Street and www.newportbeachca.gov /Banning Ranch Appendix A City / OCWD Annexation Agreement 0 Available at City of Newport Beach Utilities Department 949 West 16`" Street and www.newportbeachca.gov/BanningRanch Appendix B (on compact disc) Metropolitan Water District of Southern California 2005 Regional Urban Water Management Plan and Metropolitan Water District of Southern California 2009 Bond Statement and Municipal Water District of Orange County 2005 Urban Water Management Plan and City of Newport Beach 2005 Urban Water Management Plan and Orange County Water District 2009 Groundwater Management Plan �-i 9