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Home My WebLink About07/06/2010, PH 4 - WATER AND WASTEWATER MANAGEMENT ELEMENT UPDATE (GPA/ER 11-10) council Mmtin U j acEnda Repout N � CITY OF SAN LU I S O B I S P O FROM: Carrie Mattingly, Utilities Director Prepared By: Gary Henderson, Water Division Manager Dave Hix, Wastewater Division Manager Jennifer Metz,Utilities Projects Manager Ron Munds, Conservation Manager SUBJECT: WATER AND WASTEWATER MANAGEMENT ELEMENT UPDATE (GPA/ER 11-10) RECOMMENDATION As recommended by the Planning Commission, adopt a resolution approving the Negative Declaration of Environmental Impact and the July 2010 Water and Wastewater Management Element of the General Plan. REPORT IN BRIEF The Water and Wastewater Management Element (Element) of the General Plan has been the guiding policy document for the provision of water and wastewater services to the community since 1987. The Element translates the Land Use Element's capacity for development into potential demand for water supply and wastewater service. The Water Management Section of the Element was written during a time of water scarcity, while the Wastewater Management Section was added to the Element as a result of an order from the Regional Water Quality Board to improve the quality of the water discharged to San Luis Obispo Creek. The Water Management Section: 1. Updates the background information to reflect the City's current water supply, 2. Incorporates a reliability reserve, 3. Revises policies to strengthen the City's ability to provide reliable water service to the community, 4. Reorganizes policy subsections to improve continuity or"flow", 5. Revises outdated policy language, 6. Combines subsections to better reflect the current water supply situation, 7. Renames subsections to clarify the revised subject matter, and 8. Eliminates policies and subsections that are no longer pertinent. The most significant policy changes proposed in the Element are Policy A 5.2.3, Reliability Reserve, which proposes a methodology to establish the reliability reserve, Policy A 4.2.2, Accounting for Future Siltation, which proposes accounting for 50 years of siltation at Salinas and Whale Rock Reservoirs, and Policy A 3.2.3, Groundwater, which proposes eliminating groundwater in the water availability calculation. [` J1147�, -/ Water and Wastewater Management Element Page 2 The Wastewater Management Section of the Element has not been updated since its original adoption in 1987. The Section includes: 1. Updated background information that is distributed into the appropriate subsection, 2. Proposed goals that are consistent in format with the City's other General Plan Elements, 3. Policy language that is updated to reflect current conditions related to wastewater service, treatment and collection. 4. Proposed programs to implement the section's policies. The City of San Luis Obispo has seen major changes in the past several years relative to the long- term water resources that are available to the City. In addition, many changes have occurred since the original wastewater section was written in 1987. Based on these changes, the Planning Commission recommends the City Council approve the proposed revisions to the Water and Wastewater Management Element which will more accurately reflect the current situation. DISCUSSION Background The Water and Wastewater Management Element (Element) of the General Plan has been the guiding policy document for the provision of water and wastewater services to the community since 1987. The City adopted the Element to address water and wastewater services because of the vital role these resources play in the community and the far-reaching impacts of water-related policies on community growth and character. The Element translates the Land Use Element's capacity for development into potential demand for water supply and wastewater service. Additionally, the Element outlines how the City plans to provide adequate water and wastewater services for its citizens, consistent with the goals and policies of other General Plan Elements. The Water Management Section of the Element was adopted during a time when the City was experiencing water supply shortages. The policies in the original section were written in a manner to address the water scarcity issues that were facing the City in 1987. Though it has been revised and amended several times over the years (the last update was in 2006), each revision focused on how to best allocate the City's limited water supply for the existing residences and future growth envisioned in the General Plan. With the addition of the Nacimiento Water Project to the City's water supply portfolio, the proposed Water Management Section of the Element has been updated to reflect the current water supply conditions. The Wastewater Management Section was added to the Element in the latter part of 1987. It was developed as a result of an order from the Regional Water Quality Board to improve the quality of the water discharged to San Luis Obispo Creek. The Wastewater Management Section has not been updated since 1987 and, therefore, contains outdated information and references. Reliability Reserve Study Session Staff conducted a study session with Council at the January 5, 2010 City Council meeting regarding the City's reliability reserve. The intent of the study session was for Council to provide r Water and Wastewater Management Element Page 3 direction to staff about how to clarify and reconcile various policies in the City's Charter, Municipal Code, and the Conservation and Open Space Element referencing the reliability reserve in the future update of the Water and Wastewater Management Element. Council directed staff to modify the Element to incorporate the reliability reserve concept found in the Charter. Planning Commission Review and Recommendation The Planning Commission reviewed the Element update at its April 14 and June 9, 2010 meetings. The Commission provided input in regards to readability of the document, suggested clarification of language in the background sections (which help build a better understanding of the proposed policies and programs), and additions and/or revision of goals and programs to support the proposed policies. The most notable changes suggested by the Commission are: 1. The addition of a goal (A 7.1.2) to maximize the use of recycled water within the City. 2. The addition of a program (A 7.3.4) to consider the potential use of recycled water outside the City limits. 3. The addition of two programs (B 4.3.2 and 4.3.3) regarding inflow and infiltration. Staff incorporated all of the changes made by the Planning Commission into the draft Element (Exhibit A to Attachment 1) being presented to the City Council. Attachment 4 is the Resolution passed by the Commission recommending the City Council adopt the amendments to the Element and adopt a Negative Declaration of Environmental Impact. Water and Wastewater Management Element Update Overview Since both the Water Management and Wastewater Management sections of the Element required changes in composition and content, the following tables and narrative are organized to guide in the review of the Element. Additionally, Attachment 2 provides a comprehensive comparison of the 2006 Element and the proposed modifications in the 2010 Draft Element. While not precisely a "legislative draft", this provides the most comprehensible and comprehensive format to present this information. However, a "legislative draft" is available as part of the Council Reading File. Water Management Section To reflect the City's current water supply situation, the Section: 1. Updates the background information to reflect the City's current water supply, 2. Incorporates a reliability reserve, 3. Revises policies to strengthen the City's ability to provide reliable water service to the community, 4. Reorganizes policy subsections to improve continuity or"flow", 5. Revises outdated policy language, 6. Combines subsections to better reflect the current water supply situation, 7. Renames subsections to clarify the revised subject matter, and 8. Eliminates policies and subsections that are no longer pertinent. Table 1 compares the organization of the Water Management Section from the 2006 Element to the proposed 2010 Draft Element: r- f Water and Wastewater Management Element Page 4 Table 1: Water Management Section Reorganization Existing Subsection Titles Proposed Subsection Titles 1 Safe Annual Yield Multi-Source Water Supply 2 Water Conservation Water Resources Availability (formerly Safe Annual Yield 3 Water Demand Projections Siltation 4 Siltation Water Supply Accounting&Demand Projections (formerly Supplemental Water Requirement) 5 Supplemental Water Requirements Water Conservation 6 Multi-Source Water Supply Recycled Water(formerly Reclaimed Water) 7 Allocation of New Supplies 8 Water Allocation and Offsets 9 Reclaimed Water 10 Water Service Within the City Significant Changes to the Water Management Section 1. Reliability Reserve. The purpose of the Reliability Reserve is to provide a buffer of water supply for future unforeseen or unpredictable long-.term impacts to the City's water resources such as loss of yield from an existing water supply or impacts due to climate change. Based on the Council's January 2010 direction and input from the Planning Commission, staff developed Policy A 5.2.3, Reliability Reserve, which proposes a methodology to establish the reliability reserve. The current policy in the 2006 Element (Policy 1.5.3, Overall Projected Demand) uses a per capita planning figure of 145 gallons per capita per day (gpcd) to project future City water demands at build-out and water available for new development. The actual per capita water use rate has been much lower over the last ten years (2000-2009) with the ten-year running average at 123 gpcd. The difference between the planning figure of 145 gpcd and actual water use of 123 gpcd is not accounted for in the current policies. Policy A 5.2.3 uses current population estimates, not build-out population, and twenty percent of the ten-year running average per capita water use established in Policy A 5.2.1, Water Use Rate. Establishing a reserve in this manner will provide a measure of certainty, much like the City's twenty percent financial reserve policy, in the future for situations such as a new "worst case drought" period. Table 2 shows the distribution of water for the Primary Water Supply, Reliability Reserve, and Secondary Water Supply for 2010 consistent with proposed policies A 5.2.2, Primary Water Supply, A 5.2.3, Reliability Reserve, and A 5.2.4, Secondary Water Supply. Table 2: Proposed Reliability Reserve Policy Impact on Water Supply- 2010 Primary Water 1 Secondary Water Total Supply Reliability Reserve Supply PP Y 9,950 acre feet 7,894 acre-feet 1,241 acre-feet 815 acre-feet NOTES: 1. Reliability Reserve = 0.2 x 10-year running average per capita water use (gallons per person per day) x 365 (days per year) x current population/325,851 (gallons per acre-foot) Reliability Reserve=20%(123.2 gpcd*365 days*44,948 population/325,851 gallons per acre-foot) u'/-�V-�4 Water and Wastewater Management Element Page 5 The intent of Policy A 5.2.3 is that the reliability reserve will increase as the population grows, which is demonstrated below in Table 3. Based on the Charter language, once the reserve is established the water cannot be used to serve new development.. The 2010 Draft Element also includes Program A 5.3.1 requiring staff to provide an update on water supply accounting and demand projections to Council annually as part of the Water Resources Status Report since the quantities of water in each category will change as the population increases and/or if the water use rate changes. Table 3: Water Supply Accounting to Build-out 1 Population Primary Water Supply Reliability Reserve Secondary Water Supply 44,948 Z 7,894 acre-feet 1,241 acre-feet 815 acre-feet 50,000 7,894 acre-feet 1,380 acre-feet 676 acre-feet 57,200 7,894 acre-feet 1,579 acre-feet 477 acre-feet NOTES: 1. Table 3 assumes no change in 10-year running average(2000-2009)water use rate of 123 gpcd and recycled water deliveries from 2009 included in Water Supply Availability. 2.44,948 population figure is based on the(2010)California Department of Finance data. 3.Build-out population is based on City's General Plan,Land Use Element,Table 2,April 4,.2006. 2. Water Resources Availability (formerly Safe Annual Yield). The major change to the policies in this subsection is proposed Policy A 3.2.3, Groundwater, which would eliminate 500 acre feet per year of groundwater from the water availability calculation. Historically, the calculation has included 500 acre-feet of groundwater per year even though actual pumping has been around 100 acre-feet per .year. Utilization of only 100 acre-feet is largely due to contamination problems in the groundwater basin. Though additional groundwater could be available during water shortage periods, it would require extensive treatment and infrastructure modifications. Additional wells would also be needed to significantly increase pumping capacity. In addition, the City has very little control over the use of groundwater because of the ability of individual property owners to extract water from wells on their property and its long-term availability may be questionable. Because of these limitations, groundwater is proposed to be removed from the water availability calculation although the City expects to continue to utilize this resource to some extent. 3. Siltation. Siltation is the depositing and buildup of sediment at the reservoirs which, over long periods of time, results in reduced storage capacity. The notable change reflected in this subsection is to account for 50 years of siltation instead of accounting for the incremental losses as they occur. In the 2006 Element,Policy 1.7.1, Accounting for Siltation, states "Council should consider planning for additional water to address siltation losses over a longer term. " With the securing of the additional water supply from the Nacimiento Water Project, the proposed Policy A 4.2.2 states that water be deducted from water availability calculations to account for future siltation at Salinas and Whale Rock Reservoirs. The proposed policy identifies 500 acre-feet of available water supplies to account for estimated siltation losses to the year 2060. In the 2006 Element, Policy 1.7.1, Accounting for Siltation, addresses the issue by deducting 10 acre-feet each year from the water availability calculation each year. i Water and Wastewater Management Element Page 6 4. Allocation of New Supplies/Water Allocations and Offsets/Water Demand Projections. The deletion of these three subsections is recommended since there are now adequate water supplies to meet the General Plan's development goals without the need for specific policies on how to project future demand and allocate limited water supplies to new development. The water demand projections are now part of the Water Supply Accounting and Demand Projections subsection. The method for calculating future water demand has been modified from using 145 gallons per capita per day multiplied by the population (Policy 1.5.3, Overall Projected Demand) to using a ten-year running average of per capita water use multiplied by the population (Policy A 5.2.2, Primary Water Supply). Wastewater Management Section The Wastewater Management Section of the Element has not been updated since its original adoption in 1987. The 2010 Draft Element includes: 1. Updated background information and reorganization of the various sections, 2. Proposed goals that are consistent in format with the City's other General Plan Elements, 3. Policy language that is updated to reflect current conditions related to wastewater treatment and collection, and 4. Programs established to implement the section's policies. Table 4 compares the organization of the Wastewater Management Section from the prior Element to the proposed 2010 Element. Table 4: Wastewater Management Section Reorganization Existing Subsection Titles Proposed Subsection Titles 1 Service Area and Population Wastewater Service 2 Wastewater Collection, Treatment, and Disposal Wastewater Treatment 3 Wastewater Revenues and Financing Collection System 4 Wastewater Background Summary The City of San Luis Obispo has seen major changes in the past several years relative to the long- term water resources that are available to the City. In addition, many changes have occurred since the original Wastewater Management Section was written in 1987. Based on these changes, the Planning Commission recommends the Council approve the proposed revisions to the Water and Wastewater Management Element which will more accurately reflect the current situation. It should be noted that the proposed modifications to the Water Management Section of the Element greatly strengthen the City's water resource policies to enhance overall reliability in meeting current and future community water demands. CONCURRENCES The Community Development Department concurs with the recommended changes to the 2010 Draft Element as shown in Exhibit A to Attachment 1. FISCAL IMPACT There are no fiscal impacts associated with the recommended changes to the 2010 Draft Element. Ph/Z�-6 Water and Wastewater Management Element Page 7 ALTERNATIVES Water Management Section 1. Add 100 acre feet of groundwater to the safe annual yield calculation. Current groundwater production is approximately 100 acre-feet per year. Policy A 3.2.3 in the Draft 2010 Element proposes to not consider groundwater as a source of supply as part of its water resource availability. There are a number of limitations associated with the City's groundwater resources. While the City has been able to consistently utilize about 100 acre-feet per year of groundwater, long-term reliance on groundwater resources to meet fixture needs is questionable. Based on these limitations, this alternative is not recommended. This alternative should only be selected if there is a desire to increase the City's safe annual yield. 2. Subtract 10 acre feet per year from the safe annual yield to account for the estimated annual reduction in safe annual yield due to siltation over time. Policy A 4.2.2 in the Draft 2010 Element proposes to account for siltation for the next 50 years by deducting 500 acre feet from Safe annual yield. This alternative, which is the current methodology, would more gradually recognize the impacts of siltation on water supply than the recommended approach. It requires an annual adjustment to the safe annual yield from Salinas and Whale Rock Reservoirs which is reported in the annual Water Resources Status Report. If the City Council is comfortable with the currently available water resources, setting aside available water to account for longer term siltation losses, as recommended, is a more prudent strategy to manage siltation losses. Therefore, staff does not recommend this alternative. 3. Calculate the Reliability Reserve using the build-out population instead of the existing population. Policy A 5.2.3 in the Draft 2010 Element proposes to calculate the reliability reserve using the City's current population. This alternative would establish the reliability reserve at a higher level based on the build-out population and the ten-year running average of per capita water use instead of the incremental addition to the reliability reserve as the population increases. This would provide increased levels of protection for water supply shortages until full build-out is achieved but once the amount is established, it would not be available to serve new development as stated in the City Charter. While this is a viable alternative, it may limit the ability of future City Councils to make water supply decisions based on future unknown conditions in the community. Therefore, this alternative is not recommended. ATTACHMENTS 1 Resolution to Adopt the Water and Wastewater Management Element of the General Plan (GPA/ER 11-10) 2 2006/2010 Water and Wastewater Management Element Comparison Table 3 Initial Study,Negative Declaration, GPA/ER 11-10 4 Planning Commission Resolution No. PC-5545-10 (2010 Series) 5 Planning Commission minutes, June 9, 2010. AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE July 2010 Water and Wastewater Management Element, in legislative draft format January 5, 2010 Study Session staff report regarding the Reliability Reserve �n T—� Attachment 1 RESOLUTION NO. (2010 Series) A RESOLUTION OF THE COUNCIL OF THE CITY OF SAN LUIS OBISPO ADOPTING THE AMENDMENTS TO THE WATER AND WASTEWATER MANAGEMENT ELEMENT OF THE GENERAL PLAN AND A NEGATIVE DECLARATION OF ENVIRONMENTAL IMPACT (GPA/ER 11-10) WHEREAS, State law requires cities and counties to adopt a General Plan; and WHEREAS, the Water and Wastewater Management Element of the San Luis Obispo City General Plan was last updated in 2006; and WHEREAS, a periodic update of the Water and Wastewater Management Element is necessary for the information to remain current; and WHEREAS, the City of San Luis Obispo has prepared the 2010 Water and Wastewater Management Element to address current information and long-term community-wide needs for water and wastewater service, and WHEREAS, the potential environmental impacts of the 2010 Water and Wastewater Management Element have been evaluated in accordance with the California Environmental Quality Act pursuant to an initial environmental study (City File Number ER 11-10) and the Community Development Director has prepared a Negative Declaration of Environmental Effect; and WHEREAS, the Planning Commission held hearings on April 14, 2010 and June 9, 2010, and considered public input on the amendments to the General Plan as shown in the Water and Wastewater Management Element and proposed Negative Declaration of Environmental Effect; and WHEREAS, the Planning Commission recommends the City Council approve the Negative Declaration of Environmental Effect and the 2010 Water and Wastewater Management Element;and WHEREAS,The City Council has reviewed and considered the information contained in the Initial Study and the Negative Declaration for GPA/ER 11-10 prepared for the 2010 Water and Wastewater Management Element on July 6, 2010. NOW, THEREFORE, BE IT RESOLVED by the Council of the City of San Luis Obispo as follows: SECTION 1. Finding. The City Council, after considering the 2010 Water and Wastewater Management Element, environmental determination, staff recommendations, public testimony and correspondence, and reports thereon, finds that the 2010 Water and Wastewater Management Element is consistent with the General Plan. P7qq- l"' R Attachment 1 Resolution No. (2010 Series) Page 2 SECTION 2. Environmental Determination. The City Council determines that the 2010 Water and Wastewater Management Element will not create a substantial environmental effect as defined by the California Environmental Quality Act and supports the initial environmental study (City File Number ER 11-10) and associated Negative Declaration prepared by the Community Development Director. SECTION 3. Approval of the 2010 Water and Wastewater Management Element. Council hereby approves the 2010 Water and Wastewater Management Element, as set forth in Exhibit A. SECTION 4. Effective Date. The 2010 Water and Wastewater Management Element shall become effective immediately upon adoption of this resolution. SECTION 5. Repeal of Previous Element. The Water and Wastewater Management Element adopted June 29, 2004 and as subsequently amended, is repealed upon the effective date of the 2010 Water and Wastewater Management Element. Upon motion of , seconded by and on the following vote: AYES: NOES: ABSENT: The foregoing resolution was adopted this day of 2010. Mayor David F. Romero ATTEST: Elaina Cano City Clerk APPROVED AS TO FORM: J. me Dietrick ity Attorney p1q q-7 Attachment 1 City Of EXHIBIT A san tins ompo Water and Wastewater THE GENEPAL PLAN CHAPTER 8 WATER AND WASTEWATER Adopted: February 24, 1987 Last Revised: April 4, 2006 (Council Resolution No. 9785, 2006) (2010) Attachment 1 cityof i�� san tins omspo Water and Wastewater THE GENERAL PLAN CHAPTER 8 - TABLE OF CONTENTS INTRODUCTION...........................................................................................................8-1 A. WATER MANAGEMENT.........................................................8-2 INTRODUCTION A1.0 Background..........................................................................................................8-2 A1.1 Purpose...............................................................................................................8-2 A 1.2 What's New in this Update?................................................................................8-2 MULTI-SOURCE WATER SUPPLY A2.0 Background..........................................................:........:.........:..................:.........8-3 A2.1 Goal....................................:......:...............:.....................................:...:............:..8-4 A2.2 Policies ................................................................................................................8-4 A2.3 Programs.............................................................................................................8-6 WATER RESOURCE AVAILABILITY A3.0 Background..........................................................................................................8-7 A3.1 Goal.....................................................................................................................8-11 A3.2 Policies ..............................:..........................:............ ...............................:......8-11 A3.3 Programs...........................................................................................................8-11 SILTATION, A4.0 Background........................................................................................................8-12 A4.1 Goal...................................................................................................................8-13 A4.2 Policy .................................. :.........,...............,..................................................&13 A4.3 Programs....:................. ....................................................................................8-13 WATER SUPPLY ACCOUNTING AND DEMAND PROJECTION A5.0 Background........................................................................................................8-14 A5.1 Goal...................................................................................................................8-16 A5.2 Policies .............................................................................................................8-16 A5.3 Programs...........................................................................................................&16 WATER CONSERVATION A6.0 Background........................................................................................................8-17 A6.1 Goal...................................................................................................................&18 A6.2 Policies ............:................................................................................................8-18 A6.3 Programs.................................................:...........................................................8-18 RECYCLED WATER A7.0 Background..............................................:............:......................................:.....8-19 A7.1 Goal..........................................................................................:...........:............8-20 A7.2 Policies .............................................................................:.....:.........................8-20 A7.3 Programs...........................................................................................................8-20 Attachment 1 Sawn lulls OBiSPO Water and Wastewater THE GENERAL PLAN B. WASTEWATER MANAGEMENT.............................................8-23 INTRODUCTION B1.0 Background...............................................................................................:......:.8-23 B1.1 Purpose.............................................................................................................8-23 WASTEWATER SERVICE B2.0 Background .......................................................................................................8-24 B2.1 Goal........................................... .......................................................................8-24 B2.1 Policies .................................................................................................................8-24 B2.3 Programs_.......................................................................:......:...........................8-25 WASTEWATER TREATMENT B3.0 Background .......................................................................................................8-26 B3.1 Goals ...............................................................................................:.................8-26 B3.1 Policies .............................................................................................................8-26 B3.3 Programs.............................................................................................................8-26 COLLECTION SYSTEM B4.0 Background...............................................................:.. ...........::.........................8-27 B4.1 Goal..................................................................................................::.........:.....8-28 B4.1 Policies ....................................................................................................:........8-28 B4.3 Programs...........................................................................................................8-29 LIST OF FIGURES FIGURE1: Multi-Source Water Supply........................................................................8-5 FIGURE 3 Per Capita Water Use..............................................................................8-16 FIGURE 3:Water Reuse Master Plan Area and Distribution System........................8-21 FIGURE 4: October Dry Weather Flows to the Water Reclamation Facility...............8-23 FIGURE 5: Inflow and Infiltration Illustrated..............:.................................................8-28 LIST OF TABLES TABLE 1:City Water Resource Availability......................................... ........................8-7 TABLE 2:Annual Recycled Water Availability based on Influent Flow......................8-15 TABLE 3: Population and Water Use..........................................................................8-16 TABLE 4: 2010 Water Supply Accounting..................................................................8-16 TABLE 5:Annual Recycled Water Usage...................................................................8-20 TABLE 6: Highest Average Daily Flows to the Water Reclamation Facility('01'09).8-27 Attachment 1 stn u s owspo Water and Wastewater THE GENERAL PLAN Introduction The Citys General Plan guides the use and protection of various resources to meet community purposes. It reflects consensus and compromise among a wide diversity of citizens' preferences, within a framework set by State law. The General Plan contains elements that address various topics. The City decided to adopt an element addressing water resources and wastewater services because of the vital role of these resources and the far-reaching impacts of water policies on community growth and character. This element translates the Land Use Element's capacity for development into potential demand for water supply and wastewater services. This element outlines how the City plans to provide adequate water and wastewater services for its citizens, consistent with the goals and policies of other General Plan elements. Before adopting or revising any General Plan element, the Planning Commission and the City Council must hold public hearings. The City publishes notices in the local newspaper and on the City's website to let citizens know about the hearings at least ten days before they are held. Also, the City prepares environmental documents to help citizens understand the expected consequences of its planning policies before the hearings are held. Anyone may suggest or apply for amendments to General Plan elements. per q-13 8-1 i Attachment 1 " c�'Of 611191111 san Luis oaispo Water and Wastewater THE GENERAL PLAN A. Water Management INTRODUCTION A 1.0 Background The original Water and Wastewater Management Element was adopted in 1987 around the time the City experienced its most severe drought period which lasted from 1986 to 1991. During this point in time mandatory water use restrictions were instituted and restrictions on new development were imposed. Following this period, the City pursued additional water supplies to meet the existing water needs of the community, as well as to fulfill the goals of the General Plan.The policies 'in the Water Management section of the Element were written in a manner to address the water scarcity issues the City was facing. With the addition of the Nacimiento Water Project to the Citys water portfolio, the City has an adequate water supply to serve the community s existing and future water needs as defined by the General Plan. The 2010 revisions to the Water and Wastewater Management Element reflect the change in the water supply situation. A 1.1 Purpose The Water Management section of the Element includes goals, policies, and programs related to water supply, demand, and other emerging issues. 8-2 Attachment 1 c't'Of Sm Luis OBISPO Water and Wastewater THE GENERAL PLAN MULTI-SOURCE WATER SUPPLY A 2.0 Background The City is the sole water purveyor within the city limits. This allows the City to maintain uniformity of water service and distribution standards, and to be consistent in developing and implementing water policy. As the sole water purveyor, the City maintains control over water quality, distribution, and service to users of the system, as well as ensuring consistency with the City's General Plan policies and goals. The Water Element of the General Plan, adopted in 1987, identified multiple water projects to meet projected short and long-term water demand. Having several sources of water avoids dependence on any one source that may not be available during a drought or other water supply reduction or emergency. There is usually greater reliability and flexibility if sources are of different types (such as surface water and groundwater) and if the sources of one type are in different locations (such as reservoirs in different watersheds). In November of 1990, the Council affirmed the multi- source concept. Consistent with the multi-source concept, the City obtains water from five sources: Salinas Reservoir (Santa Margarita Lake), Whale Rock Reservoir, Nacimiento Reservoir, recycled water from the City's Water Reclamation Facility (WRF), and groundwater. See Figure 1. Salinas Reservoir The Salinas Dam was built in 1941 by the War Department to supply water to Camp San Luis Obispo and, secondarily, to meet the water needs of the City of San Luis Obispo. The Salinas Reservoir (Santa Margarita Lake) captures water from a 112 square mile watershed and can store up to 23,843 acre-feet. In 1947, the Salinas Dam and delivery system was transferred from the regular Army to the U.S. Army Corps of Engineers. Since the late 40s or early 50s, the San Luis Obispo County Flood Control and Water Conservation District has operated this water supply for the City under a lease from the U.S. Army Corps of Engineers. Water from the reservoir is pumped through the Cuesta Tunnel (a one-mile long tunnel through the mountains of the Cuesta Ridge) after which it flows by gravity to the City s Water Treatment Plant on Stenner Creek Road. Whale Rock Reservoir The Whale Rock Reservoir is a 40,662 acre-foot reservoir created by the construction of an earthen dam on Old Creek near the town of Cayucos. The dam was designed and constructed by the State Department of Water Resources in 1961 to provide water to the City of San Luis Obispo, Cal Poly State University, and the California Men's Colony. The Whale Rock Dam captures water from a 20.3 square mile watershed and water is delivered to the three agencies through 17.6 miles of 30-inch pipeline and two pumping stations.The City of San Luis Obispo owns 55.05 percent of the water storage rights at the reservoir. The remaining water storage rights are divided between the two State agencies with Cal Poly owning 33.71 percent and the California Men's Colony owning 11.24 percent. Nacimiento Reservoir The Nacimiento Reservoir provides flood protection and is a source of supply for groundwater recharge for the Salinas Valley. It is owned and operated by the Monterey County Water Resources Agency. Since 1959, the San Luis Obispo County Flood Control and Water Conservation District has had an entitlement to 17,500 acre-feet per year, (AFY) of water from the reservoir for use in San Luis Obispo County. 8-3 f ' T Attachment City Of �A- san Luis oBispo Water and Wastewater THE GENERAL PLAN Approximately 1,750 AFY have been designated for uses around the lake, leaving 15,750 AFY for allocation to other areas within the County of San Luis Obispo. The County began construction in 2007 on a 45-mile pipeline project to deliver water from the Nacimiento Reservoir to five participating agencies and cities. The City has a contractual entitlement to 3,380 AFY of water from the project. Recycled Water Recycled water is highly treated wastewater approved for reuse by the California Department of Public Health fora variety of applications, including landscape irrigation and construction dust control. Completed in 2006, the Water Reuse Project created the first new source of water for the City since 1961 following construction of Whale Rock Dam.The Project resulted in improvements at the City's Water Reclamation Facility and an initial eight miles of distribution pipeline. The City's first delivery of recycled water took place in 2006. The City estimates demand exists for approximately 1,000 acre feet of recycled water for landscape irrigation and other approved uses. Additional information is provided on recycled water in subsections A 3.0, A 7.0, and B 3.0 of this Element. Groundwater The groundwater basin beneath the City is relatively small and recharges very quickly following normal rainfall periods. The groundwater basin also lowers relatively quickly during periods of below-average rainfall. Extensive use of groundwater sustained the City through most of the drought of 1986-1991. However, the City's two largest producing wells, the Auto Parkway and Denny's (Calle Joaquin) wells, were shut down when elevated nitrate levels were detected. Additionally, portions of the groundwater basin are contaminated with a chemical solvent (tetrachloroethylene) which would require treatment facilities to remove. The City operates one well for domestic potable water use that produces approximately 11 acre-feet.per month or approximately two-percent of the City's total water use. The City also maintains a non-potable well at the City's Corporation Yard for use by contractors for construction activities such as dust control and soil compaction. The City's Laguna Lake Golf Course also has two wells that meet a portion of the irrigation demand for the course. The remainder of the irrigation demand for the golf course is met using recycled water from the City's Water Reclamation Facility. A 2.1 Goal Ensure a long-term, reliable water supply to meet both current and future water demand associated with development envisioned by the General Plan. A 2.2 Policy A 2.2.1 Multi-Source Water Supply The City shall utilize multiple water resources to meet its water supply needs. A 2.2.2 Water Service within the City A. The City will be the only purveyor of water within the City. B. Appropriate use of privately-owned wells is allowed on individual parcels. The use of the water from a well shall only be utilized on the parcel on which it is situated. �7 8-4 Attachment 1 ftw San Mlgml jol, Nacimiento dcit Reservoir P sa sao n 6s oslspo Paso Robles 1,41J Cambria ` . ... Templeton _ Creston Whale Rock Atascadem Reservoir \41i 96 'Santa Margarita Pack Ocean M, Bay water TmffimtM Salinas Plant Guests Las moa Tann°' Reservoir San Luis ObisWaterp Reclamation Facility = N W E Avila Beach 5 FIGURE 1 : Multi-Source Water Supply Reservoir City Limits Conveyance Pipelines Source:City of San Luis Obispo UUlilles Department.,2010. PH q-(,F Attachment 1 City Of sa►n tins owspo Water and Wastewater THE GENERAL PLAN A 2.3 Programs A 2.3.1 Work cooperatively on regional water issues and water resource planning (Water Resource Advisory Committee,Whale Rock Commission,etc.). A 2.3.2 Participate with the County of San Luis Obispo in the Integrated Regional Water Management Plan process. A 2.3.3 Participate with other appropriate agencies in controlling invasive species which could impact the City's water supplies (i.e. quagga mussels). A 2.3.4 Work with appropriate agencies to minimize water quality impacts from new development and other activities in the watersheds of the City's water supplies. A 2.3.5 Continue to work with the County of San Luis Obispo on the operation and maintenance of Salinas Reservoir and Nacimiento Water Project. A 2.3.6 Complete sanitary surveys for the Salinas and Whale Rock Reservoirs every five years. B-6 Attachment 1 City o f san tuts owspo Water and Wastewater THE GENERAL PLAN WATER RESOURCE AVAILABILITY A 3.0 Background As described in Section A 2.0, the City has five water resources to meet current and future City water demand: Salinas Reservoir (Santa Margarita Lake), Whale Rock Reservoir, Nacimiento Reservoir, recycled water from the City's Water Reclamation Facility, and groundwater. In order to ensure water supply reliability, the City must determine the amount of water available from these water resources on an annual basis. The method to determine the available yield from each resource varies based on water right, contractual agreement, or the amount of water actually supplied. For Salinas and Whale Rock Reservoirs the term "safe annual yield" is used to define the annual amount of water available from these two resources. The two reservoirs are operated in a coordinated manner to increase the available water. In contrast, the "dependable yield" from Nacimiento Reservoir is the contractual amount of water to which the City has rights. Since Nacimiento Reservoir is operated as a water supply Project for Monterey County, the concept of safe annual yield is not used for the City s contractual water supply from this source. For recycled water, the annual amount delivered is counted in the water availability calculation. Though groundwater is part of the City's water portfolio, due to the limitations on its use, the City will not consider this supply in estimating available water resources to meet community needs. Another issue the City must address is the potential impact of climate change on the City's water resources. Climate change could have a significant impact on future water availability in the form of droughts or increased siltation in reservoirs as a result of wildland fires which could affect the safe annual yield of the City's reservoirs. As research on the topic continues, the City will monitor the potential for long-term impacts to its water supply resources. The following sections provide more detail about each water resource. Table 1 is a summary of the City's available water resources. Table 1: City Water Resource Availability Water Resource 2010 Annual Availability Salinas Reservoir(Santa Margarita 6,940 AF Safe Annual Yield Lake)and Whale Rock Reservoir Nacimiento Reservoir 3,380 AF Contractual Limit Recycled Water 130 AF 2009 Annual Usage Siltation to 2060 (500 AF) Policy A 4.2.2 TOTAL 9,950 AF Note: The quantity of recycled water included as part of the City's available water resources identified above,Is the actual prior year's recycled water usage(2009),per Policy A 7.2.2. Source:City of San Luis Obispo Utilities Department,2010. 8.7 �/I L/ Attachment 1 a �n Luis omspo Water and Wastewater THE GENERAL PLAN Salinas and Whale Rock Reservoirs For Salinas and Whale Rock Reservoirs the term "safe annual yield" is used to define the quantity of water which can be withdrawn every year, under critical drought. conditions. The safe annual yield available from Salinas and Whale Rock Reservoirs is estimated by simulating the operation of these two water supply sources over a historical period to determine the maximum level of demand that could be met during the most severe drought for which records are available. The two reservoirs are operated in a coordinated manner to maximize the available water from these sources. Salinas Reservoir fills and spills every two to three years due to its larger drainage area and more favorable runoff characteristics, yet has higher evaporation rates. Whale Rock Reservoir fills much less frequently. The.combined yield from the two reservoirs can be maximized by utilizing water from Salinas as the City's primary source, and using Whale Rock as a backup source during periods when Salinas is below minimum pool or unable to meet all of the demand. This approach increases the long-term water supply from these two sources. Safe annual yield analyses of water supply sources are based on rainfall, evaporation, and stream flow experienced during a historical period. The City's safe annual yield analysis utilizes data from 1943 through 1991 including drought periods in 1946-51, 1959-61, 1976-77, and 1986-91. Although future conditions are unlikely to occur in the precise sequence and magnitudes as have occurred historically, this technique provides a conservative estimate of the future water supply capability of the existing sources, since the long-term historical record is considered a good indicator of future conditions. In 1988, the City contracted with the engineering firm of Leedshill-Herkenhoff, Inc., to prepare a detailed analysis of the Citys water supplies and create a computer model to determine safe annual yield, based on coordinated operation of the two reservoirs. The report Coordinated Operations Study for Salinas and Whale Rock Reservoirs was completed in 1989. Key assumptions used in the 1988 model were that the "controlling drought period" was from 1946 to 1951 and that the City only used Whale Rock Reservoir when Salinas was below minimum pool or could not meet the City's monthly demand. The study also assumed a minimum pool at Salinas and Whale Rock of 400 and 500 acre-feet respectively. The minimum pool at each lake is the amount of water that must be left in the lake for fishery and habitat resources.The current minimum pool established for each lake is 2,000 acre feet. The study estimated the City's total safe annual yield from the two reservoirs to be 9,080 acre-feet per year. This amount was never adopted by Council since the study period was only to 1988 and the City was then in a drought period of unknown length. In 1991, staff updated the computer model to examine the impact of the 1986-1991 drought on safe annual yield and revise the assumptions on the amount of water used from Whale Rock Reservoir each year to more accurately reflect the way the City actually used that resource. The analysis determined that the 1986-91 drought was the critical drought of record for the two reservoirs. These revised assumptions resulted in a reduction in the safe annual yield estimate. The City's safe annual yield for 2010, from the coordinated operation of Salinas and Whale Rock Reservoirs is 6,940 acre feet. This includes reductions due to siltation at both reservoirs to the year 2010. Future losses due to siltation are addressed in Section A 4.0 of this Element. 8-8 P/1 Attachment 1 city of san Luis ompo Water and Wastewater THE GENERAL PLAN Nacimiento Reservoir The "dependable yield" from Nacimiento Reservoir is the contractual amount of water that the City has rights to from Nacimiento Reservoir. This amount is 3,380 acre-feet per year. The San Luis Obispo County Flood Control and Water Conservation District (County) has held an entitlement to 17,500 acre-feet of water from Nacimiento Lake since 1959. Since that time, a small portion has been dedicated for uses in the immediate areas around the Lake. Several times in the past, the County has evaluated opportunities for utilizing water to meet identified needs throughout the County. In the early 1990'x, the City was facing dire drought conditions and dwindling water supplies and was considering building an emergency water supply project on its own to provide a new water source. The City requested the County allocate 3,000 acre feet to the City on a permanent basis. While the County denied this request, this triggered the initiation of investigations on a county-wide basis for separate contracts for use of the available water from Nacimiento Reservoir. Engineering studies, environmental impact reports, dependable yield analyses, and preliminary design reports were undertaken in an effort to meet the various water needs within the County. In 2004, the County requested interested agencies to approve the contractual agreements for participation in the Nacimiento Project. The four initial project participants included the cities of San Luis Obispo and Paso Robles, the Atascadero Mutual Water Company, and the Templeton Community Services District. All of these agencies executed participation agreements with San Luis Obispo County for entitlements of water which totaled 9,630 acre feet. Since 2004, the County Service Area 10A, which serves the southern portion of Cayucos, has become a project participant(25 AFI). In addition, 1,750 acre-feet was reserved focuses around the lake. On June 29, 2004, the City Council authorized participation in the Nacimiento Water Project for the delivery of 3,380 acre-feet of water. This amount is considered to be the City s dependable yield from this water source and will be utilized to meet existing and future water demands based on analyses prepared during the Nacimiento Project planning process ("Nacimiento Reservoir Reliability as a Water Source for San Luis Obispo County", Boyle Engineering Corporation, October 2002). Recycled Water With an average influent flow of just under 4.6 million gallons per day(2009), the City's Water Reclamation Facility produces over 5,100 acre-feet of disinfected tertiary-treated effluent per year. A minimum of 1,807 acre-feet is discharged to San Luis Obispo Creek annually to provide satisfactory habitat and flow volume for fish species (steelhead trout)within the San Luis Obispo Creek environment. The balance makes up the City's available recycled water resource (See Table 2) which is available for approved uses including: • Landscape and golf course irrigation • Wetlands, wildlife habitat, stream augmentation • Groundwater recharge • Toilet flushing • Vehicle washing • Surface irrigation of orchards and vineyards • Landscape impoundments • Industrial cooling processes • Food crop irrigation 8-9 PH Ll c -/ 4 cityof Attachment 1 A son tuis ompo Water and Wastewater THE GENERAL PLAN Table 2:Annual Recycled Water Availability based on Influent Flow Minimum Minimum Annual Treated Average Daily Average Annual Recycled Average Influent Flow to Effluent Recycled Water Daily Creek Creek Water WRF(MGD) Produced Release Release Availability Availability ( ) (MGD)(MGD)' (AF,n (AFy) 2009 Avg.Flow 4.596 5,148 1.6129 1,807 2.9831 3,341 Flow at WRF 5.20 5,825 1.6129 1 1,807 3.5871 4,018 Capacity Flow at General Plan Buildout 5.80 6,497 1.6129 1,807 4.1871 4,690 Notes: 1.As a condition of approval of the City's Water Reuse Project by the National Marine Fisheries Service in. 2005, the City is required to maintain a minimum average daily release, year-round, of treated effluent to San Luis Obispo Creek at a rate of 2.5 cubic feet per second(cfs),or 1.6129 million gallons per day(mgd)to provide satisfactory habitat and flow volume for anadromous fish species (steelhead trout)within the San Luis Obispo Creek environment.This totals a minimum of 1,807 acre feet per year.The City monitors the release of effluent through an effluent meter at the WRF and a stream gauge in San Luis Obispo Creek. 2. Master planning for the expansion of the WRF to accommodate General Plan buildout is underway in 2010.When the WRF is expanded in the future it will have an estimated treatment capacity of 5.8 mgd. Source:City of San Luis Obispo Utilities Department,2010. At this time (2010), the City assumes that irrigation will continue to be the primary use of recycled water. Based on a market assessment, potential customer surveys, and water demand estimates for the Margarita, Airport, and Orcutt Specific Plan areas the City estimates that demand will exist for approximately 1,000 acre-feet of recycled water annually. Irrigation demand is seasonal, with approximately 60 percent of recycled water deliveries occurring over a three-month period (June through August). Additional background information on recycled water, as well as applicable goals, policies and programs, is provided in subsection A 7.0 of the Water Section and subsection B 3.0 of the Wastewater Management Section. A 3.1 Goal Manage the City's water resources to meet the current and future water demand requirements associated with development envisioned by the General Plan. A 3.2 Policies A 3.2.1 Basis for Planning The City will plan for future development and for water supplies based on available water resources from the Salinas, Whale Rock, and Nacimiento Reservoirs and recycled water. A 3.2-2 Coordinated Operation The City will coordinate the operation of the Salinas, Whale Rock, and Nacimiento Reservoirs to maximize available water resources. A 3.2.3 Groundwater Due to limitations for the use of the groundwater resources, the City will continue to use groundwater for domestic purposes when available, but will not consider this source of supply as part of its water resource availability. 8-10 P14 Y-�Z Attachment 1 �4 crtyor `a san tuts ompo Water and Wastewater THE GENERAL PLAN A 3.3 Programs A 3.3.1 An update on the water resource availability will be presented to the City Council as part of an annual Water Resources Status Report. A 3.3.2 The City will update the safe annual yield computer model for Salinas and Whale Rock Reservoirs following severe drought periods to determine if any changes are necessary to the safe annual yield amount. A 3.3.3 The City will monitor ongoing research on the potential for long-term impacts associated with climate change to water supply resources. 8-11 P 7 J 3 Atta i chmeut 1 Myor �;� san lugs oB�spo Water and Wastewater THE GENERAL PLAN SILTATION A 4.0 Background Siltation at reservoirs is a natural occurrence that can reduce the storage capacity over long periods. The reduction of available storage reduces the safe annual yield of the reservoirs. Siltation at reservoirs varies depending on factors such as rainfall intensity and watershed management practices. Numerous studies and reports addressing siltation at Salinas Reservoir have been completed, but no studies have been done for Whale Rock Reservoir. During the drought period ending in 1991, water at Salinas Reservoir fell to record low levels. Recognizing the unique opportunity presented by the low water level, the County of San Luis Obispo contracted with a local engineering consultant to provide an aerial survey of the lake and prepare revised storage capacity information. Early studies indicated average annual siltation rates from 23 acre-feet per year to 34 acre-feet per year. The study done by the U.S. Geological Survey in 1975 estimated that the siltation rate was approximately 82 acre-feet per year. The 1990 analysis conducted by the County of San Luis Obispo indicates that the siltation rate is on the order of 40 acre-feet per year. It should be noted that siltation impacts to the reservoirs are a long-term impact to the resources and should be considered in the City's long range plans for adequate water resources. At an annual siltation rate of 40 AFY at each reservoir, it would take approximately 530 years to fill up the Salinas Reservoir and 960 years to fill up Whale Rock Reservoir. Siltation does not occur uniformly over time but the situation should continue to be monitored into the future. The City has recognized the need to evaluate the siltation rates at Whale Rock Reservoir and has identified funding in fiscal year 2011-12 to conduct the study. Since no information is available to indicate what rate of siltation is occurring at the Whale Rock Reservoir at this point, it is assumed for planning purposes that the annual average rate of siltation is similar to Salinas Reservoir. The safe annual yield from the two reservoirs will be continually reduced as a result of siltation. The City's computer model can be used to calculate the reduction in safe annual yield from Salinas and Whale Rock reservoirs to-date, which is reflected in the safe annual yield amount in Section A 3.0 which accounts for estimated siltation losses to 2010. Since the storage capacity for Salinas Reservoir was last estimated in 1990, the annual loss of 40 acre-feet per year can be applied from that date. However, since siltation at Whale Rock Reservoir has never been factored into the total available water storage, the loss of 40 acre-feet per year would apply to the period since the reservoir was constructed in 1961. The estimated loss in storage capacity for Salinas Reservoir between 1990 and 2010 is 800 acre-feet. The estimated loss at Whale Rock Reservoir between 1961 and 2010 is 1,960 acre-feet. Based on these reduced storage capacities, the computer model was used to estimate the safe annual yield from the combined operation of the two reservoirs. With an estimated loss of 40 acre-feet per year at each reservoir, the total safe annual yield from the two reservoirs is estimated to be reduced by 10 acre-feet per year. 8-12 Attachment 1 Moira s rn uis a3ispo Water and Wastewater THE GENERAL PLAN A 4.1 Goal A 4.1.1 Accurately account for siltation in the Salinas and Whale Rock Reservoirs. A 4.1.2 Recognize and account for future projected water losses due to siltation at Salinas and Whale Rack Reservoirs. A 4.2 Policy A 4.2.1 Accounting for Past Siltation The City shall account for siltation losses that have occurred to date (2010) in the safe annual yield from Salinas and Whale Rock Reservoirs. A 4.2.2 Accounting for Future Siltation The City will account for estimated safe annual yield losses at Salinas and Whale Rock Reservoirs for the next 50 years (2060) by deducting 500 acre feet of available water supplies to account for these future losses. The siltation rate will be updated as information becomes available from subsequent siltation analyses.. A 4.3 Programs A 4.3.1 Work cooperatively with other agencies and/or watershed management groups, including the County of San Luis Obispo and Resource Conservation Districts, implementing best management practices (BMPs) to reduce erosion and subsequent siltation consistent with other City watershed management goals and water quality objectives included in the Conservation and Open Space Element. A 4.3.2 Continue public education and outreach to property owners in the watersheds above the reservoirs to encourage practices that reduce erosion and other practices that could impact siltation or water quality in the reservoirs. A 4.3.3 Consider periodic siltation studies at each reservoir to evaluate and document the impacts associated with siltation. A 4.3.4 An update on siltation at the City's reservoirs will be provided to the City Council as part of the annual Water Resources Status Report. 8-13 Attachment 1 J my of san Us owpo Water and Wastewater THE GENERAL PLAN WATER SUPPLY ACCOUNTING AND DEMAND PROJECTION A 5.0 Background The City is located in a Mediterranean climate that is prone to drought. As a result, the City has experienced serious water supply deficits. In 1991, during an extended drought, the community was within 18 months of running out of water in Salinas and Whale Rock Reservoirs. In fact, Salinas Reservoir was below minimum pool and.was not available to the City toward the end of this drought period. In 1996, citizens voted to incorporate Section 909 into the City s Charter identifying a water reliability reserve. In an effort to reduce the impacts of drought on the community, the City Council has enacted numerous water policies to strengthen its water resources portfolio. The City will account for water supplies necessary to meet three specific community needs: 1) primary water supply, 2)reliability reserve, and 3)secondary water supply. 1) Primary water supply is the amount needed to meet the General Plan build-out of the City. The quantity of water needed for the City's primary water supply needs is calculated using a ten-year average of actual per-capita water use and the City's build-out population. 2) Reliability reserve provides a buffer for future unforeseen or unpredictable long-term impacts to the Citys available water resources such as loss of yield from an existing water supply source and impacts due to climate change. 3) Secondary water supply is the amount needed to meet peak water demand periods or short-term loss of City water supply sources. The City's secondary water supply is identified as any water supply resources above those needed to meet the primary water supply and reliability reserve. In order to support growth projections and other goals of the General Plan, the City must project how much water will be needed to serve residents, businesses, and other users. This can be done by using different methods, all of which involve assumptions about future usage rates and the numbers and types of users expected in the future. There will always be some uncertainty in estimating development capacity(such as the number of dwellings or residents) as well as the usage per customer type (such as acre-feet per dwelling or per resident). The estimating method must use reasonable assumptions, based on experience, to assure an adequate level of water supply while not overstating demands. As shown in Figure 2, the City's historical per capita usage water use has ranged from a high of 182 gallons per capita per day (gpcd) in 1987 to a low of 86 gpcd in 1991 (during mandatory water rationing). To project the City's primary water supply and reliability reserve into the future, an average per capita water use rate will be used, moderated by the use of the ten-year running average to normalize weather events. In 2010, the ten-year average is 123.2 gpcd as shown in Table 3, Population and Water Use. This water use rate is used with the City's build-out population and current population to project the primary water supply and reliability reserve. The City's remaining water resources make up secondary water supply, as shown in Table 4. 40#L(_01/4;� 8-14 Attachment 1 �7 Myof `a san Luis owspo Water and Wastewater THE GENERAL PLAN Figure 2:Per Capita Water Use,1985-2009 200 n 11ata6?` ry 160 175 i � :�'� .4., {. •r �, 7-. e r '.,,ter r° ', 3i• 160 r 140 - r 173 m r z 125, .124 124 128 X128 � 1117 �..z ..,.121 :1;18121120 -•122120 1 23 120 $ 103106 ' 100 C 0 60 t2 60 1 1 40 20 0 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 Year Source:City of San Luis Obispo Utilities Department,2010. Table 3: Population and Water Use City of San Luis Obispo Total Water Use Per Capita Water Use Year Population 1 acre feet ' cd = 2000 44,179 6,121 124 2001 44,347 5,886 118 2002 44,482 6,032 121 2003 44,357 5,968 120 2004 44,298 6,239 126 2005 44,687 6,098 122 2006 44,559 5,999 120 2007 44,433 6,488 130 2008 44,579 6,375 128 2009 44,829 6,157 123 Ten-year Average: 123.2 Sources: 1.State of CA,Department of Finance,E4 Population Estimates for Cities.Counties and the State,2001-2010,with 2000 Benchmark.Sacramento,CA,May 2010. 2.City of San Luis Obispo Utilities Department 2010. Table 4: 2010 Water Supply Accounting Total' Primary Sply ter Reliability Reserve3 Secoon ary Water PP Y` 9,950 acre-feet 7,894 acre-feet 1,241 acre-feet 816 acre-feet Notes: 1. The 'Total" water supply for 2010 is identified in Table 1. It Includes safe annual yield from Salinas and Whale Rock Reservoirs,contractual limit from Nacimiento Reservoir,annual recycled water usage for 2009,and deducts siltation losses at Salinas and Whale Rock Reservoirs to 2060. 2. Primary Water Supply was calculated using the Citys buildout population (57,200, per Land Use Element, Table 2, Anticipated City Population Growth, 2006)and the water use rate of 123.2 gallons per capita per day(a ten-year running average of the City's actual per capita water use),per policy A 5.2.2. 3. Reliability Reserve was calculated using the Citys 2010 population (44,948, per CA Dept of Finance, E-4 Population Estimates for Cities,Counties and the State,2001-2010,with 2000 Benchmark.Sacramento,CA,May 2010)and 20 percent of the water use rate of 123.2 gallons per capita per day(a ten-year running average of the City's actual per capita water use),per policy A 5.2.3. 4.Secondary Water Supply Includes the remaining water resources available In 2010,identified In Table 1,per policy A 5.2.4. Source:City of San Luis Obispo Utilities Department,2010. 8-15 Attachment 1 crty of �It san tins owspo Water and Wastewater THE GENERAL PLAN A 5.1 Goals A 5.1.1 Identify and meet the City's multi-source water supply needs. A 5.1.2 Accurately forecast future water demand for planning purposes. A 5.2 Policies A 5.2.1 Water Use Rate The City will calculate the per capita water use rate based on a ten-year running average of the City s actual per capita water use. A 5.2.2 Primary Water Supply The City shall establish the amount of water needed for General Plan build-out using the water use rate established in Policy A 5.2.1 multiplied by the projected General Plan build-out population identified in the Land Use Element. A 5.2.3 Reliability Reserve The City will establish a reliability reserve that is 20-percent of the water use rate established in Policy A 5.2.1 multiplied by the current population. The water supply designated as the reliability reserve may not be used to serve future development. A 5.2.4 Secondary Water Supply After accounting for primary water supply and a reliability reserve, any remaining water supplies shall be utilized for meeting short-term water supply shortages or peak water demands. A 5.2.5 Paying for Water for New Development New development shall pay its proportionate or "fair share" for water supplies, expanded treatment and distribution system capacity and upgrades. A 5.3 Programs A 5.3.1 An update on water supply accounting and demand projections will be presented to the City Council as part of the annual Water Resources Status Report. A 5.3.2 The City will conduct periodic updates to water development impact fees.. A 5.3.3 Prepare and update the Urban Water Management Plan every five years as required by the State. A 5.3.4 Analyze and prepare water supply assessments for large new developments in accordance with State law. A 5.3.5 Analyze the impacts of water efficiency programs and services to reduce overall water demand within the City. &16 ko a Attachment 1 am Luis oaispo Water and Wastewater THE GENERAL PLAN WATER CONSERVATION A 6.0 Background Water conservation was first referenced as a part of the City's water management policy in 1973. In 1985, the City adopted the Annual Water Operational Plan policy establishing water conservation as a. means of extending water supplies during projected water shortages. Since 1985, many technological and philosophical changes have occurred which are proving water conservation to be both a short-term corrective measure for immediate water supply shortages and a long-term solution to water supply reliability. Because of the experience during the drought of 1986 to 1991, the City developed a Water Shortage Contingency Plan (Plan) to deal with immediate, short-term water shortages. The Plan is designed to require mandatory actions when there is a projected three year supply of water remaining from available water resources. The Plan uses a combination of water allocations based on customer classification and water use surcharges for exceeding the allocation as a means to decrease water use during critical water shortages. For instance, residential customers are given a water allocation based on the average water use for multi- or single-family households having three occupants. If there are more residents, additional water may be allocated with sufficient proof. Commercial customers are allocated water either by a reduction based on their historical water use or by the average water use by business type. Surcharges for exceeding a water allocation results in their bill either doubling or tripling depending on the actual amount of water used. The Plan is also a required component of the Citys Urban Water Management Plan which is updated every five years per State Water Code. The City also recognizes the importance of long-term water efficiency by supporting programs that will enhance water supply reliability and comply with any current and/or future state mandates in water use reductions. In 2009, Senate Bill X7-7 was passed requiring water agencies to reduce per capita water use by 20 percent by the year 2020. There are three options (with a fourth being developed) on how to determine the year 2020 target for the City. Using the methodology which best corresponds to the City's situation and recognizes the City's past investment in conservation, the City's target per capita water use would be 117 gpcd which is an additional five percent reduction from 2010 per capita water use. In terms of water supply reliability the City was one of the original signatories to the Memorandum of Understanding Regarding Urban Water Conservation (MOU) and has actively pursued the implementation of the water efficiency best management practices (BMPs) prescribed in the MOU. The MOU was a negotiated agreement between water purveyors statewide and environmental organizations on how best to utilize the State's water resources by incorporating conservation into their water management practices. The BMPs have been developed over the years by water purveyors, environmental groups, and industry stakeholders. They represent the best available water conservation practices based on research and experience and include: • Water conservation pricing and rate structures • Technical assistance for water customers • Incentives for indoor and outdoor water saving technologies • Public information and outreach • Water audits 8-17 Attachment 1 47 crty of �� san Luis oBispo Water and Wastewater THE GENERAL PLAN Additionally, the City has adopted the Ahwahnee Principles as part of the General Plan's Conservation and Open Space Element (LOSE). The water conservation components of the principles align with both the indoor and outdoor water conservation BMPs. In the future, the City will reevaluate and update its water conservation efforts in response to changing water demand, supplies, technology, and economic conditions. A 6.1 Goal The efficient use of the City's water resources to protect both short- and long-term water supply reliability. A 6.2 Policies A 6.2.1 Long-term,Water Efficiency The City will implement water-efficiency programs which are consistent with accepted best management practices and comply with any State-mandated water use reductions. A 6.2.2 Short-term Water Shortages Mandatory water conservation measures as described in the City's Water Shortage Contingency Plan will be implemented when the City's water supplies are projected to last three years or less. A 6.3 Programs A 6.3.1 Work cooperatively with other San Luis Obispo County water agencies to identify cooperative water efficiency measures that can be implemented in each jurisdiction. A 6.3.2 Participate in State and regional water conservation efforts and research and development opportunities. A 6.3.3 Implement the Water Shortage Contingency Plan as required. 8-18 Attachment 1 crtyof • san tuts owspo Water and Wastewater THE GENERAL PLAN RECYCLED WATER A 7.0 Background Water recycling was envisioned as part of the City's overall water supply strategy since the 1980's. In 1994, the City completed a major capital improvement project at the Water Reclamation Facility that included addition of tertiary treatment and other unit processes required to meet stringent effluent quality limits intended to protect and enhance the receiving waters of San Luis Obispo Creek. While a municipal water reuse program was envisioned at the time of this upgrade, the City did not receive regulatory approvals for diversion of treated effluent for off-site landscape irrigation and other approved uses until 2002. The Citys 2004 Water Reuse Master Plan identifies the areas of the City to be served with recycled water (See Figure 3, Water Reuse Master Plan Area and Distribution System), as well as potential customers and anticipated future recycled water demand. The City completed construction of the Water Reuse Project in 2006 which included: • A diversion structure and modulating control valve to split the effluent flow between the recycled water tank.and San Luis Obispo Creek. • A new 220,000-gallon chlorine contact tank to meet recycled water disinfection requirements which differ from those for discharge to San Luis Obispo Creek. • A new 600,000 gallon buried concrete recycled water storage tank to provide the storage necessary for operation of the distribution system. • A pump station to deliver recycled water into the distribution system. It included two 40-horsepower and three 120-horsepower variable speed pumps and was designed to accommodate two additional 120 horsepower pumps for a future capacity expansion. The Water Reuse Project also included the initial eight miles of the recycled water distribution system with two main branches,as described below: West Branch: The west branch extends west from the WRF under Highway 101, then along Calle Joaquin to Los Osos Valley Road (LOVR) to near the westerly city limits on LOUR. There is a secondary branch which extends from LOVR along Madonna Road to Laguna Lake Park. East Branch: The east branch begins at the WRF and follows Prado Road easterly to the city limits, then along existing easements to Broad Street, thence southerly along Broad to Tank Farm Road, then easterly to the terminus at Islay Hills Park. Recycled water deliveries began in October 2006. In 2009, recycled water was delivered to 17 sites with total usage over 130 acre feet per year (See Table 5). Additional sites continue to be connected to the recycled water distribution system through retrofits of existing irrigation systems as well as the irrigation systems associated with new development in the area. In the future, recycled water will be delivered to development in the Airport, Margarita, and Orcutt speck plan areas. Recycled water will be used for the irrigation of parks, streetscape, and median landscaping, common area (homeowners association) landscaping, and landscaping in commercial centers, industrial areas, and business parks. //- 8-19 Attachment 1 !' crtyof N011190 san Luis omspo Water and Wastewater THE GENERAL PLAN Table 5: Annual Recycled Water Usage Calendar Annual Recycled Number of Sites Year Water Usage Using Recycled Water in acre-feet 2006 7.69 1 2007 62.36 10 2008 95.75 11 2009 137.362 1 17 Notes: 1.Partial year data reported,October through December 2006. 2. The City initiated a Construction Water Permit Program (CWPP) on July 1, 2009. Recycled water usage associated with the CWPP is included with annual recycled water usage. Source:City of San Luis Obispo Utilities Department,.2010. A 7.1 Goal A 7.1.1 Utilize recycled water for non-potable purposes, thereby offsetting the use of potable water. A 7.1.2 Maximize the use of the City's available recycled water supply for approved uses. A 7.2 Policies A 7.2.1 Recycled Water Supply The City will make available recycled water to substitute for existing potable water uses as allowed by law and to supply new non-potable uses. A 7.21 Accounting for Recycled Water The City will add total recycled water usage from the prior year to the City s water resource availability on an annual basis. A7.3 Programs A 7.3.1 Expand the recycled water distribution system to serve customers in the Water Reuse Master Plan area. A 7.3.2 Review development proposals for projects within the Water Reuse Master Plan area to ensure recycled water is utilized for appropriate uses. A 7.3.3 Annual recycled water usage will be presented to the City Council as part of the annual Water Resources Status Report and will be added to the City's water resource availability per policy A 3.2.1. A 7.3.4 Consider the potential to deliver available recycled water supplies to customers outside the city limits, including analysis of policy issues, technical concerns, and cost recovery, to further the objectives of the General Plan. 8-20 P14 san is 6BISDO 'A m _ � m FOCI FIGURE 3: Water Reuse Master Plan Area & Distribution System Water Reuse Recycled Water Master Plan Area Distribution System p Source:City of San Luis Obispo Utilities Department.,2010. Attachment crtyof A san tuts omspo Water and Wastewater THE GENERAL PLAN 8-22 pay-3 y �l Attachment 1 u myof �a san lues ompo Water and Wastewater THE GENERAL PLAN B. Wastewater Management INTRODUCTION B1.0 Background The Wastewater Management section was first incorporated into the Water and Wastewater Management Element of the General Plan in 1987. The City owns and operates, under regulatory permits, a wastewater collection system and a water reclamation facility that produces recycled water. In order to adequately maintain the systems, meet the needs of the community, and meet increasingly stringent regulations the City implements infrastructure replacement and upgrade projects at the Water Reclamation Facility (WRF) and throughout the wastewater collection system. It also has a pretreatment program. B1.1 Purpose This section of the Water and Wastewater Management Element establishes goals, policies, and programs to ensure provision of adequate sanitary sewer infrastructure and wastewater treatment capacity to accommodate existing and future development in order to protect public health, human safety, and the environment. 8-23 P % --315' Attachment l �7 City of �r sm Luis oaispo Water and Wastewater THE GENERAL PLAN WASTEWATER SERVICE B2.0 Background The City is the sole provider of wastewater service within the City. The service provides collection and treatment for residential, commercial, and industrial users on properties within the city limits. In 2010, the number of service connections is estimated to be 14,400. Through agreement, the City also provides service to the San Luis Obispo campus of California Polytechnic State University(Cal Poly)and the County of San Luis Obispo Airport. The collection system is primarily a gravity flow system. Where gravity flow is not feasible due to the topography, wastewater lift stations and pressurized force mains are used to move wastewater to the City's Water Reclamation Facility (WRF) on Prado Road. Sewer pipelines measure from six inches to 48 inches in diameter. As shown in Figure 4, dry-weather flow to the WRF over the past nine years has ranged from 4.08 mgd to 5.12 mgd during October. In 2010, the WRF is designed for an average dry-weather flow of 5.2 million gallons per day (mgd). Instantaneous peak flows exceeding 20 mgd are not uncommon during storm events due to infiltration and inflow into the wastewater collection system, discussed further in subsection B 4.0. As the City grows to its build-out population outlined in the Land Use Element, the average dry-weather flow of wastewater is expected to reach 5.8 mgd. In 2010, master planning for the expansion of the WRF to accommodate General Plan buildout is underway. When the WRF is expanded in the future it will have an estimated treatment capacity of 5.8 mgd. Figure 4: October Dry-Weather Flows to the Water Reclamation Facility in Million Gallons per Day(MGD) 6.00 5.00 R 4.00 q- 4.00- a a C 3.00- =0 2.00 i 1.00 _ 0.00- 2001 2002 2003 2004 2005 2006 2007 2008 2009 Year Source: City of San Luis Obispo Utilities Department,Water Reclamation Facility, Influent Flow Data for October 2001-2009. The City utilizes October data to ensure the consideration of the City's student population when forecasting future dry-weather flows. 8-24 Attachment I sa n Luis awspo Water and Wastewater THE GENERAL PLAN B 2.1 Goal Adequate wastewater collection and treatment service to meet the long-term needs of the City. B 2.2 Policies B 2.2.1 Service Outside the City Limits To receive City wastewater service, property must be annexed to the City. The City Council may authorize exceptions to this policy if achieving other important General Plan goals. B 2.2.2 Service Capacity The Citys wastewater collection system and Water Reclamation Facility shall support population and related service demands consistent with the General Plan. B 2.2.3 Wastewater Service for New Development New development shall pay its proportionate or"fair share" of expanded treatment and collection system capacity and upgrades. New development will only be permitted if adequate capacity is available within the wastewater collection system and/or Water Reclamation Facility. B 2.2.4 City as Exclusive Provider The City will be the only provider of public wastewater treatment within the City(but on- site pretreatment of wastewater to meet City Standards may be required). B 2.3 Programs B 2.3.1 Expand capacity in the City's collection system and Water Reclamation Facility in support of projected wastewater flows. B 2.3.2 Evaluate the potential for the wastewater flows of a proposed project to exceed the capacity of collection and treatment systems. B 2.3.3 The City will conduct periodic updates to its wastewater development impact fees. 3 8-25 i Attachment crty of �i san Luis o5ispo Water and Wastewater THE GENERAL PLAN WASTEWATER TREATMENT B 3.0 Background The Water Reclamation Facility (WRF) processes wastewater in accordance with standards set by the State's Regional Water Quality Control Board (RWQCB). The RWQCB issues a permit to the City under the National Pollutant Discharge Elimination System (NPDES), setting standards for the discharge of treated wastewater. The standards are to protect beneficial uses ofthe receiving water(San Luis Obispo Creek) including recreation, agricultural supply, and fish and wildlife habitat. The WRF removes solids, reduces the amount of nutrients, and eliminates bacteria in the treated wastewater which is then discharged into San Luis Obispo Creek. Solids are separated and treated, to create biosolids. Biosolids are beneficially reused as compost, and/or soil amendment. As described in Section A 7.0, the WRF has been producing tertiary treated recycled water for delivery to water customers in the City since 2006. B 3.1 Goals B 3.1.1 Wastewater treatment that meets or exceeds regulatory requirements and ensures the protection of public health and the environment. B 3.1.2 A high-quality, dependable recycled water supply that meets an increasing portion of the City s non-potable demand. B 3.2 Policies B 3.2.1 Treating Wastewater The City will treat all wastewater in compliance with approved discharge permits. B 3.2.2 Recycled Water Production The City will produce high-quality, dependable recycled water, suitable for a wide range of non-potable uses. B 3.2.3 Beneficial Use The City will pursue treatment and disposal methods which provide for further beneficial use of wastewater and biosolids. B 3.3 Programs B 3.3.1 Prepare and implement Water Reclamation Facility master plan consistent with regulatory requirements. B 3.3.2 Work cooperatively on regional water quality issues. �Ny- 38� 8-26 Attachment 1 scan Luis oBispo Water and Wastewater THE GENERAL PLAN COLLECTION SYSTEM B 4.0 Background The first sanitary sewers were built.in San Luis Obispo in the late 1800s.Today portions of the collection system are over 100 years old. It includes nine lift stations, approximately 135 miles of gravity sewer line and three miles of force main. Approximately 2,900 manholes provide access to the collection system. The sewer lines are made of a variety of materials, including terra cotta salt-glazed pipe, vitrified clay pipe(VCP), polyvinyl chloride(PVC), and asbestos concrete. The City s wastewater collection system requires maintenance to ensure uninterrupted flows and minimize sanitary sewer overflows. Area and preventive maintenance programs are regularly evaluated to ensure their effectiveness. The City also utilizes video inspection to prioritize .problem areas for replacement, maintenance, assess overall mainline conditions, conduct inflow and infiltration evaluations, and assess new construction. The City issues discharge permits to and conducts inspections of facilities that have the potential to discharge pollutants in concentrations that could pose a threat to worker safety, the wastewater collection system, and/or the Water Reclamation Facility. Through its Pretreatment Program, the City also implements programs to target constituents of special concern. Like most cities in California, San Luis Obispo has separate sewer and storm drain systems. This means each system of pipes in the ground is designed to accommodate either sewer or stormwater flows. One set of pipes takes sanitary waste to the Water Reclamation Facility while a second set carries stormwater runoff from street drains directly into bioswales, detention basins, or creeks. The City s wastewater collection system and the WRF have long experienced Table 6: Highest Average Daily Flows problems associated with wet weather to the Water Reclamation Facility, infiltration and inflow(I 8 1). Inflow is water 2001 to 2009 that enters the collection system at points of direct connection (non-soil) such as Average Daily around manhole covers or through illegal Flows Year connection of roof drains, downspouts, or landscape drains. Infiltration is water that 15.4.1 mgd 2001 March flows through the ground into the 7.84 m d 2002 December collection system usually through cracks in 9.96 mod 2003 March public sewer mains and/or private sewer 16.81.m d 2004 December laterals (See Figure 5). 1 & I overloads the 15.95 mgd 2005 Janua 19.75 m d 2006(April) collection system during heavy rains and 7,24 mgd 2007 December can result in sanitary sewer overflows. 9,83 mgd 2008 January During periods of significant rain events, 1 11.67 mgd 2009 October the WRF can become hydraulically Note: overwhelmed (as mentioned previously, 1. Instantaneous peak flows are higher. instantaneous peak flows exceeding 20 2.August dry weather flow to the WRF from 2001 mgd are not uncommon during storm to 2009 ranged from 3.44 mgd to 4.23 mgd. events) increasing the chance of effluent Source:City of San Luis Obispo utilities violations and the release of partially . Department,2010. treated wastewater to San Luis Obispo Creek. Table 6 includes data on the highest average daily flows experienced at the WRF during rain events over a nine-year period. 8-27 0' IVY '3/ �\ Attachment ablad a �n Us owspo Water and Wastewater THE GENERAL PLAN Figure 5: Inflow and Infiltration Illustrated d a* Lateral Drain SANITARY Broken Pipo SEWER MAIN "Aa s yyam�.� ^�F B 4.1 Goal Collect and convey all wastewater under safe and sanitary conditions to the Water Reclamation Facility. B 4.2 Policies B 4.2.1 Collection System Maintenance The City will manage the collection system to ensure that the proper level of maintenance is provided and that the flow in sanitary sewers does not exceed design capacity. B 4.2.2 Infiltration and Inflow The City will minimize stormwater and groundwater infiltration and inflow into the sewer system. 8-28 Attachment 1 oityof l d san lulls osispo Water and Wastewater THE GENERAL PLAN B 4.3 Programs B 4.3.1 Investigate and carry out cost-effective methods for reducing infiltration and inflow into the wastewater collection system. B 4.3.2 Develop education and outreach materials to increase public awareness of problems associated with excessive infiltration and inflow (I & 1) into the wastewater collection system and the City's efforts to reduce I & I. B 4.3.3 Support the retrofit of commercial and residential sewer laterals to reduce infiltration and inflow into the wastewater collection system. B 4.3.4 Update the Sewer System Management Plan to maintain its applicability. B 4.3.5 Maintain, and revise as necessary, master plans for the extension of wastewater services to developing areas of the City and to ensure orderly replacement of aged infrastructure. B 4.3.6 Review development proposals to ensure new development does not adversely impact existing infrastructure and that necessary infrastructure will be in place to support the development. B 4.3.7 Provide a Pretreatment Program pursuant to the Clean Water Act to ensure that all discharge requirements are met. 8-29 tY"H7—7 r Attachment 2 Water & Wastewater Management Element 2006 / 2010 Comparison Table Water Management Section To reflect the City's current water supply situation, the Section: 1. Updates the background information to reflect the City's current water supply, 2. Incorporates a reliability reserve, 3. Revises policies to strengthen the City's ability to provide reliable water service to the community, 4. Reorganizes policy subsections to improve continuity or"flow", 5. Revises outdated policy language, 6. Combines subsections to better reflect the current water supply situation, 7. Renames subsections to clarify the revised subject matter, and 8. Eliminates policies and subsections that are no longer pertinent. The table below compares the organization of the existing 2006 Water Management Section of the Element to the proposed 2010 Element: Existing 2006 Element Subsection Titles Proposed 2010 Element Subsection Titles Safe Annual Yield Multi-Source Water Supply Water Conservation Water Resources Availability (formerly Safe Annual Yield) Water Demand Projections Siltation Siltation Water Supply Accounting&Demand Projections (formerly Supplemental Water Requirement) Supplemental Water Requirements Water Conservation Multi-Source Water Supply Recycled Water Allocation of New Supplies Water Allocation and Offsets Reclaimed Water Water Service Within the Cit jog L1- Y:�L Attachment 2 Water and Wastewater Management Element 200612010 Comparison Table Safe Annual Yield Modification Summary This subsection of the 2006 Element is proposed to be renamed Water Resources Availability in the 2010 Element. Background is provided on the City's yield from its different reservoirs (safe annual yield, contractual/dependable yield) and the assumptions related to modeling safe annual yield for Whale Rock and Salinas Reservoirs. The 2006 Element included 500 acre-feet of groundwater per year, though actual pumping has been slightly more than 100 acre-feet per year due to contamination problems in the groundwater basin, the need for expensive treatment, and infrastructure modifications. Because of these limitations, modifications are proposed in the 2010 Element to the existing policy that includes 500 acre-feet per year of groundwater in the safe annual yield calculation. Three new programs are proposed including an update on the water resource availability in the annual presentation to the City Council of the Water Resources Status Report, that the safe annual yield computer model for Salinas and Whale Rock Reservoirs be updated following severe drought periods, and that the City will monitor ongoing climate change research on the potential for long-term impacts to water supply resources. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Goal New Goal A 3.1 Manage the City's water resources to meet the current and future water demand requirements associated with development envisioned by the General Plan. Policies 1.0.1 Basis for Planning A 3.2.1 Basis for Planning The City will plan for future development and for The City will plan for future development and for water supplies based on the amount of water which water supplies based on available water resources can be supplied each year, under critical drought from the Salinas, Whale Rock and Nacimiento conditions.This amount,called "safe annual yield," Reservoirs and recycled water. will be formally adopted by the Council. The safe annual yield determination will be revised as Modified policy language proposed significant new information becomes available, and as water sources are gained or lost. The deternunation will consider a staff analysis, which will recommend an amount based on coordinated use of all water sources. Each change to safe annual yield will be reflected in an amendment of this Plan. 1.0.2 Safe Yield Amount A 33.2 Coordinated Operation The City's safe annual yield, from the coordinated The City will coordinate the operation of the operation of Salinas and Whale Rock reservoirs Salinas, Whale Rock, and Nacimiento Reservoirs to and 500 acre-feet of groundwater, is shown in maximize available water resources. Table 1. The safe annual yield includes reductions I Modi tedP01,0language proposed. 2 pH4-g3 _ C Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element due to siltation at the reservoirs, discussed in more detail in Section 5.0. 1.0.3 Groundwater A 3.2.3 Groundwater The amount of groundwater which the City will Due to limitations for the use of the groundwater rely upon towards safe annual yield is identified in resources, the City will continue to use policy 1.1.2. The City will maximize the use of groundwater for domestic purposes when available, groundwater in conjunction with other available but will not consider this source of supply as part of water supplies to maximize the yield and long-term its water resource availability. reliability of all water resources and to minirrze Modified policy language proposed overall costs for meeting urban water demands.The City shall monitor water levels at the well sites to determine whether reduction or cessation of pumping is appropriate when water levels approach historic low levels. Programs New A 3.3.1 An update on the water resource availability will be presented to the City Council as art of an annual Water Resources Status Report. New A 3.3.2 The City will update the safe annual yield computer model for Salinas and Whale Rock Reservoirs following severe drought periods to determine if any changes are necessary to the safe annual yield amount. New A 3.3.3 The City will monitor ongoing research on the potential for long-term impacts associated with climate change to water supply resources. 3 pH "y/ Attachment 2 Water and Wastewater Management Element 2006/1010 Comparison Table Water Conservation Modification Summary One new goal is proposed in this subsection of the 2010 Element on the efficient use of the City's water resources. The proposed policies reflect the change in State law and requirements in place regarding water efficiency programs and water use reductions. Three new programs are proposed: to work with other agencies in the County on water efficiency measures, participate in regional and statewide conservation efforts, and implement the Water Shortage Contingency Plan as required. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Goal New Goal A 6.1 The efficient use of the City's water resources to protect both short- and long-term water supply reliability. Policies 1.3.1 Long-term Water Efficiency A 6.2.1 Long-term Water Efficiency The City will implement water-efficiency programs The City will implement water-efficiency programs which will maintain long-term, per-capita usage at which are consistent with accepted best or below the per capita use rate as identified in management practices and comply with any State- Policy 3.1.2. mandated water use reductions. Modified policy language proposed 1.3.2 Short-term Water Shortages A 6.2.2 Short-term Water Shortages Short-term mandatory measures, in addition to the Mandatory water conservation measures as long-term programs, will be implemented when the described in the City's Water Shortage Contingency City's water supplies are projected to last three Plan will be implemented when the City's water years or less based on projected water supplies are projected to last three years or less. consumption, coordinated use of all city water supply sources, and considering the drought pattern Modified policy language proposed. on which safe yield is based (or response to other situations which may interrupt supply). Programs New A 6.3.1 Work cooperatively with other San Luis Obispo County water agencies to identify cooperative water efficiency measures that can be implemented,in each jurisdiction. New A 6.3.2 Participate in State and regional water conservation efforts and research and development opportunities. New A 6.3.3 Implement the Water Shortage Contingency Plan as required. ,f� � 4 �L�.� �J/ Attachment 2 Water and Wastewater Management Element 200612010 Comparison Table Water Demand Projections Modification Summary With adequate water supplies to meet the General Plan goals, projecting water demand in the community as it grows is not necessary except as it relates to General Plan build-out. Staff is recommending the deletion of the Water Demand Projections subsection from the 2006 Element and moving the revised policies to the subsection dealing with how the City accounts for water supply availability in the renamed Water Supply Accounting and Demand Projection, subsection 5.2 in the 2010 Element. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Policies 1.5.1 Basis of Projections Recommended for deletion, policy no longer The city will project water requirements, needed since the City has an adequate water supply considering long-term condition and the full range to meet General Plan build-out of water uses in the City. 15.2 Water Use Rate A 5.2.1 Water Use Rate The City shall use 145 gallons per person per day The City will calculate the per capita water use rate (this equates to approximately 0.162 acre-foot per based on a ten-year running average of the City's person per year) and the number of City residents actual per capita water use. to plan total projected future water demand. This quantity will be revised if warranted by long term This policy has been moved to the 2010 Water water use trends, including differences in the Supply Accounting & Demand Projection relationship between residential and nonresidential subsection. usage. (Throughout this Plan, 145 gallons per person per day is used in computations of future water demand. 1.5.3 Overall Projected Demand Recommended for deletion, a new methodology for Applying 145 gallons per person per day to a projecting water demand in A 5.2.1 is being projected City resident population of about 56,000 recommended at General Plan build-out results in a projected water demand of 9,096 acre-feet per year (excluding demand from the Cal Poly campus, which has separate entitlements). 1.5.4 Present Water Demand A 5.2.2 Primary Water Supply Present water demand shall be calculated by The City shall establish the amount of water needed multiplying the water use identified in Policy 1.5.2 for General Plan build-out using the per capita water by the current city population(as determined by the use rate established in Policy 5.2.1 multiplied by the California Department of Finance, Population projected General Plan build-out population Research Unit). identified in the Land Use Element. This policy has been moved to the 2010 Water Supply Accounting & Demand Projection subsection. 1.5.5 Peak Daily Water Demand Concept included in Secondary Water Supply The City shall strive to develop and maintain water policy,A 5.2.4. supply sources and facilities appropriate to ensure sufficient supply and system capacity to provide the peak daily water demand of the City. 5 �/-4N—V1c9 Attachment 2 Water and Wastewater Management Element 1006/1010 Comparison Table Siltation Modification Summary Two new goals are proposed related to recognizing and accounting for siltation at Salinas and Whale Rock Reservoirs. One new policy is proposed to account for 50 years of siltation instead of the current practice of deducting 10 acre-feet annually. With the securing of the additional water supply from the Nacimiento Water Supply Project, staff is recommending that water be dedicated to future siltation at Salinas and Whale Rock Reservoirs as suggested in the current policy, "Council should consider planning for additional water to address siltation losses over a longer term. "Four new programs are proposed to implement these policies. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Goal New Goal A 4.1.1 Accurately account for siltation in the Salinas and Whale Rock Reservoirs. New Goal A 4.1.2 Recognize and account for future projected water losses due to siltation at Salinas and Whale Rock Reservoirs. Policies 1.7.1 Accounting for Siltation A 4.2.1 Accounting for Past Siltation The City shall account for siltation in the adoption The City shall account for siltation losses that have of the safe annual yield as identified in Policy occurred to date (2010) in the safe annual yield 1.1.2. The estimated annual reduction in safe from Salinas and Whale Rock Reservoirs. annual yield from Salinas and Whale Rock Reservoirs is 10 acre-feet per year. As Council Modif ed policy language proposed considers and develops new water supply opportunities, Council should consider planning for additional water to address siltation losses over a longer term. New A 4.2.2 Accounting for Future Siltation The Citywill account for estimated safe annual yield losses at Salinas and Whale Rock Reservoirs for the next 50 years (2060) by deducting 500 acre- feet of available water supplies to account for these future losses. The siltation rate will be updated as information becomes available from subsequent siltation analyses. Programs New A 4.3.1 Work cooperatively with other agencies and/or watershed management groups, including the County of San Luis Obispo and Resource Conservation Districts, implementing best 6 �' _ q7 Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Programs New A 4.3.1 Work cooperatively with other agencies and/or watershed management groups, including the County of San Luis Obispo and Resource Conservation Districts, implementing best management practices (BMPs) to reduce erosion and subsequent siltation consistent with other City watershed management goals and water quality objectives included in the Conservation and Open Space Element. New A 4.3.2 Continue public education and outreach to property owners in the watersheds above the reservoirs to encourage practices that reduce erosion and other practices that could impact siltation or water quality in the reservoirs. New A 4.3.3 Consider periodic siltation studies at each reservoir to evaluate and document the impacts associated with siltation. New A 4.3.4 An update on siltation at the City's reservoirs will be provided to the City Council as art of the annual Water Resources Status Report. . 7 Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Supplemental Water Requirements Modification Summary Since the City has an adequate water supply to meet the General Plan's goals, the City is no longer pursuing supplemental water. The name of this subsection is proposed to be renamed Water Supply Accounting and Demand Projection in the 2010 Element to reflect this change. Two new goals are proposed in this subsection related to meeting the City's water supply needs and forecasting future demand. One new policy and other policy modifications are proposed to implement these goals. The new policy (A 5.2.3), to define a Reliability Reserve, describes the methodology and purpose of the reserve to act as a buffer for future unforeseen or unpredictable long-term impacts to the City's available water resources such as loss of yield from an existing water supply source and impacts due to climate change. Five new programs are proposed to implement the policies. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element. Goal New Goal A 5.1.1 Identify and meet the City's multi- source water supply needs. New Goal A 5.1.2 Accurately forecast future water demand for nianning oses. Policies A 5.2.1 Water Use Rate The City will calculate the per capita water use rate based on a ten-year running average of the City's actual per capita water use. Modified policy language proposed, moved from the 2006 Water Demand Projections section. 1.9.1 Supplemental Water Requirement A 5.2.2 Primary Water Supply The City shall develop additional water supplies to The City shall establish the amount of water needed provide for the Primary Supply Requirements for General Plan build-out using the per capita identified below, and strive to develop additional Fater use rate established in Policy A 5.2.1 water supplies to provide for the Secondary Supply multiplied by the projected General Plan build-out Requirements identified below, in the consideration population identified in the Land Use Element. of available water supply opportunities.. New 1. Primary Supply Requirements — Develop A 5.2.3 Reliability Reserve supplemental water supplies to .provide sufficient The City will establish a reliability reserve that is water for General Plan build-out using the per- 20-percent of the water use rate established in capita planning use rate identified in Policy 3.1.2 Policy A 5.2.1 multiplied by the current population. multiplied by the projected General Plan build-out The water supply designated as the reliability population, and reserve may not be used to serve future development. 8 Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element 2. Secondary Supply Requirements — Develop A 5.2.4 Secondary Water Supply supplemental water supplies to provide additional After accounting for primary water supply and a yield to account for future siltation losses, drought reliability reserve, any remaining water supplies contingency, loss of yield from an existing supply shall be utilized for meeting short-term water source, operational requirements necessary to meet supply shortages or peak water demands. peak operating demands, and other unforeseen conditions. 1.9.2 Supplemental Water Sources This policy is recommended for deletion as the In deciding appropriate sources of supplemental City is no longer pursuing supplemental water water, the City will evaluate impacts on other users supplies. of the water and other environmental impacts, total and unit costs, reliability, water quality, development time, and quantity available. 1.93 Paying for Supplemental Water for New A 5.2.5 Paying for Water for New Development Development New development shall pay its proportionate or The cost for developing new water supplies "fair share" for water supplies, expanded treatment necessary for new development will be paid by and distribution system capacity and upgrades. impact fees set at a rate sufficient to cover the annual debt service cost of the new water supplies Modified policy language proposed attributable to new development, Programs New A 5.3.1 An update on water supply accounting and demand projections will be presented to the City Council as part of the annual Water Resources Status Report. New A 5.3.2 The City will conduct periodic updates to water development impact fees. New A 5.3.3 Prepare and update the Urban Water Management Plan every five years as required by the State. New A 5.3.4 Analyze and prepare water supply assessments for large new developments in accordance with State law. New A 5.3.5 Analyze the impacts of water efficiency programs and services to reduce overall water demand within the City. 9 l Attachment 2 Water and Wastewater Management Element 200612010 Comparison Table Multi-Source Water Supply Modification Summary This subsection is proposed in the Water Management Section of the 2010 Element to provide a general description of the City's water resources and the services provided. One new goal is proposed in this subsection on ensuring a long-term, reliable water supply. An existing policy from the 2006 Element is proposed to be moved to this section on Water Service within the City. Part B of this policy addresses the use of private wells and the proposed modification limits the use to the parcel in which it is situated. In the 2006 Element, the use of a private well on multiple properties was allowed under certain conditions and upon approval of the Utilities Director. Six new programs are proposed that all involve coordinated efforts with other agencies. These include working on regional water issues and water resource planning, working to control invasive species from impacting the City's water supplies, working to minimize water quality impacts from new development and other activities in the watersheds, addressing operational and maintenance issues associated with City reservoirs, and completing sanitary surveys. 2006/2010 Comparison Existing 2006 Water&WastewaterProposed 2010 Water&Wastewater Management Element Management Element Goal New Goal A 2.1 Ensure a long-term, reliable water supply to meet both current and future water demand associated with development envisioned by the General Plan. Policies 1.11.1 Multi-Source Water Supply A 2.2.1 Multi-Source Water Supply The City shall continue to develop and use water The City shall use multiple water resources projects resources projects to maintain multi-source water to meet its water supply needs. supplies,and in this manner,reduce reliance on any one source of water supply, to provide for peak Modified policy language proposed operating demands in the event one of the City's major water supply sources is unavailable, and to increase its supply options in future droughts or other water supply emergencies. A 2.2.2 Water Service within the City A. The City will be the only purveyor of water within the City. B. Appropriate use of privately-owned wells is allowed on individual parcels. The use of the water from a well shall only be utilized on the parcel on which it is situated. Modified policy language proposed, includes the private well provisions. The policy has been modified so that private wells can on be used on the parcel on which they are situated 1 Attachment 2 Water and Wastewater Management Element 2006/1010 Comparison Table Programs New A 2.3.1 Work cooperatively on regional water issues and water resource planning (Water Resource Advisory Committee, Whale Rock Commission,etc.). New A 2.3.2 Participate with the County of San Luis Obispo in the Integrated Regional Water Management Plan process. New A 2.3.3 Participate with other appropriate agencies in controlling invasive species which could impact the Cit 's water supplies i.e.q44gga mussels). New A 2.3.4 Work with appropriate agencies to minimize water quality impacts from new development and other activities in the watersheds of the City's water supplies. New A 2.3.5 Continue to work with the County of San Luis Obispo on the operation and maintenance of Salinas Reservoir and Nacimie_nto Water Project. New A 2.3.6 Complete sanitary surveys for the Salinas and Whale Rock Reservoirs emy five ears. Attachment 2 Water and Wastewater Management Element 2006/1010 Comparison Table Allocation of New Water Supplies — Recommended for deletion Modification Summary Three of the five policies in this subsection of the 2006 Element referred to how the City would allocate water to new development when supplies were limited. With the City's current multi- source water supply, such policies are no longer needed. Two policies in this subsection of the 2006 Element, related to recycled water and the use of private wells, are proposed to be included in other subsections of the 2010 Element, as noted. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water S Wastewater Management Element Management Element Policies 1.13.1 Balancing Safe Yield and Overall Recommended for deletion, the allocation of Demand water is no longer needed because, there is When new water sources are obtained, the adequate water for General Plan build-oaG additional safe yield shall be allocated fust to eliminate any deficit between the adopted safe annual yield (Section 1.0) and the present demand as defined in Policy 3.1.4, second to eliminate any deficit between adopted safe yield and General Plan build-out, and third to supply for the Secondary Supply Requirements as identified in Policy 6.1.1. 1.13.2 Supplying New Development Recommended for deletion, the allocation of A. The City will determine the water available for water is no longer needed because there is allocation to new development by either; the adequate water for General Plan build-out adopted safe annual yield of the City's water supplies minus present demand as identified in Policy 3.1.4, or the projected demand at buildout as identified in Policy 3.1.3 minus present demand as identified in Policy 3.1.4; whichever is less. Available allocations will be assigned to development in a way that supports balanced growth, consistent with the General Plan. Allocations from a new water supply project shall be considered available at the time project construction is initiated. B. Any safe annual yield from new water supply projects beyond that needed to balance safe annual yield and present demand will be allocated to development, subject to the requirements in Policy 8.1.3,"Reserve for Intensification and Infill." C. A water allocation shall not be required for projects for which the developer makes changes in facilities served by the City that will reduce long- term water usage equal to twice the water allocation required.for the project. 12 r ,a \ Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element 1.133 Reserve for Intensification and Infill Recommended for deletion, the allocation of Development water is no longer needed because there is The City will annually update the water available adequate water for General Plan build-out. for allocation based on the difference between the adopted safe annual yield (policy 1.1.2) and the present water demand (policy 3.1.4) as part of the annual Water Resources Status Report. One-half of the water available for allocation(not to exceed the total required for infill and intensification), as identified in the Water Resources Status Report, will be reserved to serve intensification and infill development within existing city limits as of July 1994. 1.13.4 Accounting for Reclaimed Water Modified program language proposed, moved to Reclaimed water has an estimated potential of Recycled Water,Section A 7.0 1,200 acre-feet per year of water available for appropriate non-potable uses. The amount to be added to the City's safe annual yield, and therefore available for development, will only be the amount projected actually to be used or offset (approximately 130 a.f. initially), increasing to 1,200 acre-feet per year as additional offsetting uses are brought on-line. The amount of reclaimed water used each year will be reported to Council as part of the annual Water Resources Status Report and will be added to the safe annual yield identified in Section 1,Table 1 of this document to determine water available for new development. 1.13.5 Private Water Supplies Modified program language proposed, moved to When developments are supplied by private Multi-Source Water Supply,A 2.0. groundwater wells,the yield of those wells will not be counted toward the City's safe annual yield. Such yield, however, will result in the demand for City water supplies being lower than it otherwise .would be, which may necessitate adjustments of the per capita water usage figure used to estimate overall demand. 13 Pf —5 i 1 Attachment 2 Water and Wastewater Management Element 200612010 Comparison Table Water Allocations and Offsets Modification Summary It is staff's recommendation to delete this subsection. The two policies and the subsection are no longer relevant given the current water supply situation. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element. Management Element Policies 1.15.1 Exemptions for Offsets Recommended for deletion, the allocation of The City will not allow a project to reduce or water is no longer needed because there is eliminate the amount of the required allocation or adequate water for General Plan build-out. offset, to the extent that the project is supplied by a private well,with the following exceptions: 1. The City may reduce the amount of the required water allocation, to the extent that the project is supplied by a private well serving non-potable water needs (such as irrigation) which will not significantly affect the yield of City wells. Such a well may be operated by the owner of the property containing the well only for the owner's use. As an exemption, the City may allow a well to supply landscape irrigation on more then one parcel if the irrigation is: a) for the common area of a condominium complex or other developments with similar common areas as approved by the Utilities Director, and .the well and irrigation system are under the control of an owner's association; or b) a single commercial development, and the well and irrigation system are subject to a recorded agreement among parcel owners, which is acceptable to the Utilities Director and the City Attorney, and which establishes responsibilities for operation and maintenance of the common areas served by the well. 2. When an allocation or potential offset is not available, a well may be allowed to eliminate the required offset for potable water needs only as an interim source until a new City water source is available. Once a new source becomes available, the project will be required to acquire an allocation from the City. Impact fees will be due at the time the development is approved. 3. The City Council approves the well proposal as part of a specific land development project approval, and the proposed well system meets all City standards; and 4. A qualified, independent, hydrological 14 Attachment 2 Water and Wastewater Management Element 100612010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element investigation demonstrates that the well(s) reliably can provide sufficient quality and quantity of water for the proposed land development project and will not impact the yields from City wells. 1.15.2 Basis for Allocations and Offsets Recommended for deletion, the allocation of Required allocations and offsets will be based on water is no longer needed because there is long-term usage for each type of development. adequate water for General Plan build-out (These use and offset factors will be determined and published by the City, and may be revised, as warranted,by new information. 15 Attachment 2 Water and Wastewater Management Element 200612010 Comparison Table Reclaimed Water Modification Summary This subsection of the 2006 Element is proposed to be renamed Recycled Water in the 2010 Element. Staff is recommending moving the policy referencing the production of high quality reclaimed water to the Wastewater Management Section of the Element. Additionally, the policy on how recycled water is accounted for has been moved to this subsection. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Goal New Goal A 7.1.1 Utilize recycled water for non- potable purposes, thereby offsetting the use of potable water. New Goal A 7.1.2 Maximize the use of the City's available recycled water supply for approved uses. Policies 1.17.1 Reclaimed Water Quality- Policy moved to 2010 Wastewater Management The City will produce high quality reclaimed water, Section (B 3.2.2). suitable for a wide range of nonpotable uses. 1.17.2 Uses of Reclaimed Water A 7.2.1 Recycled Water Supply The City will make available reclaimed water to The City will make available recycled water to substitute for existing potable water uses as substitute for existing potable water uses as allowed by law and to supply new nonpotable uses. allowed by law and to supply new non-potable uses. A 7.2.2 Accounting for Recycled Water The City will add total recycled water usage from the prior year to the. City's water resource availability on an annual basis. Modified program language proposed, moved from 2006 Allocation of New Water Supplies subsection. Programs New A 7.3.1 Expand the recycled water distribution system to serve customers in the Water Reuse Master Plan area. New A 7.3.2 Review development proposals for projects within the Water Reuse Master Plan area to ensure recycled water is utilized for appropriate uses. 1ew N A 7.3.3 Annual recycled water usage will be 16 (i rT"67 5- Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element presented to the City Council as part of the annual Water Resources Status Report and will be added to the City's water resource availability per policy A 3.2.1. New A 7.3.4 Consider the potential to deliver available recycled water supplies to customers outside the city limits, including analysis of policy issues, technical concerns, and cost recovery,to finther the objectives of the General Plan. Water Service within the City Modification Summary This policy has been incorporated into the Multi-Source Water Supply subsection. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element 1.19.1 Water Service within the City Recommend the subsection be deleted and the A. The City will be the only purveyor of water policy moved to Multi-Source Water Supply, A within the City. 2.0. B. Appropriate use of privately owned wells may be allowed with the approval of the Utilities Director,consistent with policies 8.1.5 and 9.1.1. 17 Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Wastewater Management The Wastewater Management Section of the Water and Wastewater Management Element has not been updated since its original adoption in 1987. The Section includes: 1. Updated background information that is distributed into the appropriate subsection, 2. Proposed goals that are consistent in format with the City's other General Plan Elements. 3. Policy language that is updated to reflect current conditions related to wastewater service, treatment, and collection. 4. Programs established to implement the subsection's policies. The table below compares the organization of the Wastewater Management Section from the 2006 Element to the proposed 2010 Element, Wastewater Management Section Reorganization Existing Subsection Titles Proposed Subsection Titles Service Area and Population Wastewater Service Wastewater Collection, Treatment, and Disposal Wastewater Treatment Wastewater Revenues and Financing Collection System Wastewater Background Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Service Area and Population Modification Summary This subsection of the 2006 Element is proposed to be renamed Wastewater Service in the 2010 Element. The Wastewater Service subsection includes goals, policies, and programs related to the provision of wastewater collection and treatment services. Modifications are proposed to existing policies from the 2006 Element related to the City being the exclusive provider of wastewater service and new development paying its proportionate share of expanded treatment and collection system capacity and upgrades. Other modifications or deletions of existing polices are also proposed related to the provision of wastewater service. Two new programs are proposed (B 2.4.2 and B 2.4.3) to implement policies in this subsection. These address the evaluation of projected wastewater flows to exceed the capacity of collection and treatment systems and updates to its wastewater development impact fees. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Goal New Goal B 2.1 Adequate wastewater collection and treatment service to meet the long-term needs of the City. Policies 1.1.1 Service Area Recommended for deletion.Addressed under The current wastewater service area is the proposed policy B 2.2.1. incorporated area of the City. The City shall provide wastewater service adequate for existing uses and new development pursuant to the Land Use Element for all areas within the city limits. 1.1.2 Areas Within the Urban Reserve Line Recommended for deletion.Addressed under The urban reserve line (the outer limit to urban proposed policy B Z2.L development) includes areas which the City may annex in the future. Wastewater service adequate for potential uses allowed by the Land Use Element (including hillside planning provisions) shall be provided for all areas within the urban reserve line. 1.1.3 Service Outside the City Limits B 2.2.1 Service Outside the City Limits To receive City wastewater service, areas must be To receive City wastewater service, property must annexed to the city. The City will not provide be annexed to the City. The City Council may wastewater service for areas outside the city limit, authorize exceptions to this policy if achieving except for: other important General Plan goals. A. Customers which have prior agreements. Modified policy language proposed B. Uses which are consistent with the General Plan and which are located on areas of less than one acre, which are surrounded on at least three sides by areas that are already served. 1.1.4 Areas Outside the Urban Reserve Line Recommended for deledom Addressed under The City will not provide wastewater service to Attachment 2 Water and Wastewater Management Element 200612010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element areas outside the urban reserve line. proposedpolicy B 2.21. 1.1.5 Special Districts Recommended for deletion. This policy is Special districts should not provide wastewater unenforceable.. service within the City's planning area to uses inconsistent with the City's General Plan. 1.1.6 Service Capacity B 2.2.2 Service Capacity The City's wastewater collection and treatment The City's wastewater collection system and Water systems must be able to support population and Reclamation Facility shall support population and related service demands consistent with General related_ service demands consistent with the General Plan objectives. These basic objectives are stated in Plan. the Land Use Element(growth management)and in Modif ed policy language proposed the Housing Element. 1.1.7 Annexation Criteria Recommended for deletion. This policy has the The City will not annex an area unless it can meet unintended consequence of placing the City in the the wastewater treatment needs of the area to be awkward position of having to build annexed, in addition to the wastewater treatment infrastructure potentially decades in advance of requirements for all development, consistent with development in newly annexed areas. Worst case, the Land Use Element, within the city including the infrastructure could be built that would require annexed area. The only exceptions to this policy replacement before it was utilized General are: purpose rates might be supporting debt payments A. Areas which have prior agreements for for extraordinary periods of time before wastewater service. development impact fees came in to pay for the B. Minor infill parcels within areas which have infrastructure to serve the anticipated prior agreements for wastewater service, as development provided in policy 2.1.3. B 2.2.3 Wastewater Service for New Development New development shall pay its proportionate or "fair" share of expanded treatment and collection system capacity and upgrades. New development will only be permitted if adequate capacity is available within the wastewater collection system and/or Water Reclamation Facility. Modified policy language proposed, from 2006 Wastewater Revenue and Financing subsection. B 2.2.4 The City as Exclusive Provider The City will be the only provider of public wastewater collection and treatment within the City (but on-site pretreatment of wastewater to meet City Standards may be required). Modified policy language proposed, from 2006 Wastewater Collection, Treatment, and Disposal subsection. Programs 1.0.1 Updates Recommended for deletion. New policy B 2.2.2 The City will update this element's service area addresses updates to all General Plan policies. description and population projections as needed and in concert with any amendments to the Land Use Element. I� 20 017 4-/ Attachment 2 Water and Wastewater Management Element 200612010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element 1.0.2 Projections of Requirements Recommended for deletion. New policy B 2.2.2 The City will refine this element's projections of addresses updates to all General Plan policies. wastewater treatment requirements on the basis of wastewater flows from specific land use categories and the likely development of those categories as provided in the Land Use Element. 1.0.3 Expanding Capacity B 2.3.1 Expand capacity in the City's collection The City will expand the capacity of the system and Water Reclamation Facility in support wastewater treatment plant to provide adequate of projected wastewater flows. treatment for projected wastewater flows. Modified program language proposed New B 2.3.2 Evaluate the potential for the wastewater flows of a proposed project to exceed the capacity of collection and treatments stems. New B 2.3.3 The City will conduct periodic updates to its wastewater development impact fees. Attachment 2 Water and Wastewater Management Element 200612010 Comparison Table Wastewater Collection, Treatment, and Disposal Modification Summary This.subsection of the 2006 Element is proposed to be renamed Wastewater Treatment in the 2010 Element. The subsection includes goals, policies, and programs related to wastewater treatment. A policy from the Allocation of New Water Supplies subsection of the 2006 Element on the production of recycled water is proposed to be included in this section as Policy B 3.2.2, Recycled Water Production. Two new goals are proposed (B 3.1.1 and B 3.1.2) on treating wastewater and producing recycled water. One new policy is proposed on the treatment of wastewater; other modifications are proposed to existing policies. One new program is proposed related to working cooperatively on regional water quality issues. Another existing program is proposed to be modified which is the preparation and implementation of the Water Reclamation Facility Master Plan. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Goals New Goal B 3.1.1 Wastewater treatment that meets or exceeds regulatory requirements and ensures the protection of public health and the environment. Goal B 3.1.2 A high quality dependable recycled water supply that meets an increasing portion of the City's non-potable demand. Policies 2.3.1 Stormwater Infiltration Modified policy language proposed, included in The City will minimize stormwater infiltration into 2010 Wastewater Collection subsection. the sewers stem. 2.3.2 System Protection Modified policy language proposed,included in The.City will minimize damage to the wastewater 2010 Wastewater Collection subsection. collection and treatment systems by preventing discharge of materials that are toxic or which would obstruct flows. 2.3.3 Managing Treatment Demand Recommended for deletion. The City will manage wastewater treatment demand to assure that it can provide a high level of wastewater service. 2.3.4 Beneficial Use B 3.2.3 Beneficial Use The City wit] pursue treatment and disposal The City will pursue treatment and disposal methods which, to the maximum extent feasible, methods which provide for ftuther beneficial use of provide for further beneficial use of wastewater and wastewater and biosolids. allow beneficial uses of land or water receiving the Modified policy language proposed effluent. New B 3.2.1 Treating Wastewater The City will treat all wastewater in compliance with approved discharge permits. 22 601-111-413 1 ( 1 - Attachment 2 Water and Wastewater Management Element 1006/2010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Moved from Allocation of New Water Supplies subsection. B 3.2.2 Recycled Water Production The City will produce high-quality, dependable recycled water, suitable for a wide range of non- potable uses. 2.3.5 City as Exclusive Provider Modified policy language proposed as B 2.2.4 in The City will be the only provider of public Wastewater Servic& wastewater treatment within the City (but on-site B 2.2.4 The City as Exclusive Provider pretreatment of wastewater to meet City Standards The City will be the only provider of public may be required). wastewater treatment within the City (but on-site pretreatment of wastewater to meet City Standards may be required). 2.3.6 Energy Efficiency Recommended for deletion.Energy efficiency for Wastewater operations will minimize energy use all city facilities is addressed in the Conservation and will incorporate cost-effective energy recovery and Open Space Element or production facilities. Programs 2.4.1 Reducing Infiltration Modified program language proposed,included in The City will continue to investigate and carry out 2010 Wastewater Collection subsection. cost-effective methods for reducing stormwater flows into the wastewater system. 2.4.2 Discharge Standards Recommended for deletion This issue is The City will update and enforce its standards for addressed in Municipal Code, Title 13,Public the quality of wastewater discharged to the system. Services. 2.4.3 Project Evaluation Modified program language proposed,included in The City will continue to evaluate the potential for 2010 Wastewater Service subsection the wastewater flows of a proposed project to exceed the capacity of collection and treatment systems. 2.4.4 State and Federal Water Quality Standards B 3.3.1 Prepare and implement Water Reclamation The City will change its treatment and disposal Facility .master plan consistent with regulatory practices in an attempt to meet federal and state requirements. water-quality standards. The fust step will be Modified program language proposed. adoption of the Wastewater Management Plan and completion of pre-design technical reports that will describe a specific strategy for treatment and disposal. Any additional required environmental review would be integrated with the pre-design work. Then, plans and specifications, and a budget, for the construction project would be prepared. The timing of these steps will be worked out in collaboration with the Regional Water Quality Control Board. New B 3.3.2 Work cooperatively on regional water quality issues. 23 n Attachment 2 Water and Wastewater Management Element 200612010 Comparison Table Wastewater Collection Modification Summary This subsection is proposed in the 2010 Element to identify specific goals, policies, and programs related to the City's wastewater collection system. A new goal is proposed on the collection and conveyance of wastewater and a new policy is proposed on collection system maintenance. Five programs are proposed to implement the policies in this subsection. New programs address developing education and outreach material to increase public awareness of problems associated with excessive infiltration and inflow, support for retrofit of commercial and residential sewer laterals to reduce infiltration and inflow, the Sewer System Management Plan, master planning the replacement of aged infrastructure, and review of development proposals to ensure new development does not adversely impact existing infrastructure. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element Goal New Goal B 4.1 Collect and convey all wastewater under safe and sanitary conditions to the Water Reclamation Facility. Policies New B 4.2.1 Collection System Maintenance The City will manage the collection system to ensure that the proper level of maintenance is provided and that the flow in sanitary sewers does not exceed design capacity. 2.3.1 Stormwater Infiltration Modified policy language proposed The City will minimize stormwater infiltration into B 4.2.2 Infiltration and Inflow the sewer system. The City will minimize stormwater and groundwater infiltration and inflow into the sewer system. Programs 2.3.1.1 Reducing Infiltration B 4.3.1 Investigate and carry out cost-effective The City will continue to investigate and carry out methods for reducing infiltration and inflow into cost-effective methods for reducing stormwater the wastewater collection system. flows into the wastewater system. Modified program language proposed. New B 4.3.2 Develop education and outreach materials to increase public awareness of problems associated with excessive infiltration and inflow (I & I) into the wastewater collection system and the City's efforts to reduce I&1. B 4.3.3 Support the retrofit of commercial and residential sewer laterals to reduce infiltration and inflow into the wastewater collection system. 24 f ;rl Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element Management Element 2.3.2 System Protection B 4.3.7 Provide a Pretreatment Program pursuant to The City will minimize damage to the wastewater the Clean Water Act to ensure that all discharge collection and treatment systems by preventing requirements are met. discharge of materials that are toxic or which would obstruct flows. Modified program language proposed New B 4.3.4 Update the Sewer System Management Plan to maintain its applicability. B 4.3.5 Maintain, and revise as necessary,master plans for the extension of wastewater services to developing areas of the City and to ensure orderly replacement of aged infrastructure. B 4.3.6 Review development proposals to ensure new development does not adversely impact existing infrastructure and that necessary infrastructure will be in place to support the development. 25 Attachment 2 Water and Wastewater Management Element 2006/2010 Comparison Table Wastewater Revenues and Financing Modification Summary Staff proposes this subsection of the 2006 Element be deleted, however, the policy related to expanding treatment capacity and extending the collection system to serve new development is proposed to be included in the 2010 Element's Wastewater, Service subsection, as discussed above. 2006/2010 Comparison Existing 2006 Water&Wastewater Proposed 2010 Water&Wastewater Management Element. Management Element Policy 2.5.1 Enterprise Activity The City's wastewater system will be operated as Modified program language proposed,included in an enterprise activity, with costs to be home by the 2010 Wastewater Service subsection. wastewater fees and charges. Costs of operating, B 2.2.3 Wastewater Service for New maintaining, and replacing the wastewater system Development will be home by all customers. Some portion of the New development shall pay its proportionate or costs of making major decisions about the ,fair share" of expanded treatment and collection wastewater systems --such as evaluating changes to system capacity and upgrades. New development citywide collection and treatment-- may be bome will only be permitted if adequate capacity is by the, whole community. Costs of expanding available within the wastewater collection system treatment capacity and extending the collection and/or Water Reclamation Facility. system to serve new development shall be home by those making new connections to the system, in New program language is also proposed in the proportion to expected wastewater flows. The City 2010 Wastewater Service subsection. will seek any state or federal grants which may be available to fund sewer system improvements. B 2.3.3 The City will conduct periodic updates to Programs to fund wastewater projects should be its wastewater development impact fees. consistent with the growth management policies of the General Plan. 26 i —(� �I Attachment 3 �►III0�1�Ilflll�� plllll III�� city of sAn luis OBWO Community Development Department• 919 Palm Street, San Luis Obispo, CA 93401-3218 INITIAL STUDY ENVIRONMENTAL CHECKLIST FORM For GPA/ER 11-10 1. Project Title: Water and Wastewater Management Element Update 2. Lead Agency Name and Address: City of San Luis Obispo Utilities Department 879 Morro Street San Luis Obispo, CA 93401 3. Contact Person and Phone Number: Jennifer Metz, (805) 781-7239 4. Project Location: Citywide, City of San Luis Obispo 5. Project Sponsor's Name and Address:.City of San Luis Obispo Utilities Department 879 Morro Street San Luis Obispo, CA 93401 6. General Plan Designation: N/A 7. Zoning: N/A 8. Description of the Project: The project is an update to the City's General Plan, Chapter 8, Water and Wastewater Management Element (Exhibit 1). The Element includes two major sections including Water Management and Wastewater Management. Updates in the Water Management section are proposed to: • Update the background sections to reflect current water supply conditions and information, • Revise outdated policy language, • Rename sections to better state the revised subject matter, • . .Reorganize/combine policy sections to better reflect the current water supply situation, and • Eliminate policies and sections that are no longer pertinent. Four of the subsections in Water Management included the following policy changes. Safe Annual Yield (SAY). The updated Element proposes the elimination of 500 acre feet per year of groundwater from the Safe Annual Yield, or dependable yield, calculation. Historically, the Safe Annual Yield included 500 acre feet of groundwater per year even though actual pumping has been about 130 acre feet, or approximately two percent of the City's total water CITY OF SAN LUIS OBISPo I INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 PH�-6�' The City of San Luis Obispo is committed to include the disabled in all of its services, programs and activities. Telecommunications Device for the Deaf(805) 781-7410. Attachment 3 use. This is largely due to contamination problems in the groundwater basin. Though groundwater could be available during water shortage periods, it would need expensive treatment and infrastructure modifications to be utilized. Because of theses limitations, the updated Element proposes groundwater be removed from the Safe Annual Yield calculation. Siltation. With the securing of the additional water supply from the Nacimiento Water Supply Project, staff is recommending that future siltation at Salinas and Whale Rock Reservoirs be accounted for in water supply projections. The updated Element proposes accounting for 50 years of siltation instead of the current practice of estimating siltation by deducting 10 acre feet of water supply annually. Water Supply Accounting & Demand Projections. The updated Element outlines a method to calculate primary and secondary water suppliesaswell as a reliability reserve. Allocation of New Supplies/Water Allocations and Offsets/Water Demand Projections. Three subsections from the 2006 Element are proposed for deletion as the City has an adequate water supply to accommodate General Plan buildout without the need for specific policies on how to project future demand and allocate water to new development. Updates in the Wastewater Management section of the Element are proposed to: • Update background information to reflect current conditions, • Revise policy language, and • Propose goals and programs consistent with the format of other General Plan Elements. 9. Surrounding Land Uses and Settings: N/A 10. Project Entitlements Requested: General Plan Amendment 11: Other public agencies whose approval is required: None. CITY OF SAN Luis OBISPO 2 INITIAL STUDY ENVIRONMENTAL CHECKLIST'2)01 0 Attachment.3 ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED: The environmental factors checked below would be potentially affected by this project, involving at least one impact thatis a "Potentially Significant Impact" as indicated by the checklist on the following. pages. Aesthetics Greenhouse Gas Emissions Public Services Agricultural Resources Hazards&Hazardous Recreation Materials Air Quality Hydrology/Water Quality Transportation&Traffic Biological Resources Land Use and Planning Utilities&Service Systems Cultural Resources Noise Mandatory Findings of Significance Geology/Soils Population&Housing FISH AND GAME FEES There is no evidence before the Department that the project will have any potential adverse effects on fish X and wildlife resources or the habitat upon which the wildlife depends. As such,the project qualifies for a no effect determination from Fish and Game. The project has potential to impact fish and wildlife resources and shall be subject to the payment of Fish and Game fees pursuant to Section 711.4 of the California Fish and Game Code. This initial study has been circulated to the California Department of Fish and Game for review and comment. STATE CLEARINGHOUSE This environmental document must be submitted to the State Clearinghouse for review by one or more State agencies (e.g. Cal Trans, California Department of Fish and Game, Department of Housing and Community Development). The public review period shall not be less than 30 days (CEQA Guidelines 15073(a)). CITY OF SAN LUIS Owsp0 3 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 �'N� - 7u �} Attachment 3 DETERMINATION: On the basis of this initial evaluation I find that the proposed project COULD NOT have a significant effect on the environment, X and a NEGATIVE DECLARATION will be prepared. I find that although the proposed project could have a.significant effect on the environment, there will not be a significant effect in this case because revisions in the project have been made, or the mitigation measures described on an attached sheet(s) have been added and agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared. I find that the proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required. I find that the proposed project MAY have a `-`potentially significant" impact(s) or"potentially significant unless mitigated" impact(s) on the environment, but at least one effect (1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and(2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets. An ENVIRONMENTAL IMPACT REPORT is required,,but it must analyze only the effects that remain to be addressed I find that the proposed project will not have a significant effect on the environment, because all potentially significant effects have been analyzed adequately in an earlier NEGATIVE DECLARATION pursuant to applicable standards,nothing further is required. Signature Date. Kim Murry,Deputy Director,Community Development For:.John Mandeville, Printed Name Community Development Director a+ CITY OF SAN LUIS OBISPO 4 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 I I Attachment 3 EVALUATION OF ENVIRONMENTAL IMPACTS: 1. A brief explanation is required for all answers except "No Impact" answers that are adequately supported.by the information sources a lead agency cites in the analysis in each section. A "No Impact" answer is adequately supported if the referenced information sources:show that the impact simply does not apply to projects like the one involved(e.g. the project falls outside a fault rupture zone).A"No Impact"answer should be explained where it is based on project-specific factors as well as general standards(e.g. the project will not expose sensitive receptors to pollutants,based on a project-specific screening analysis). 2. All answers must take account of the whole action involved,including off-site as well as on-site,cumulative as well as project-level, indirect as well as direct, and construction as well as operational impacts.The explanation of each issue should identify the significance criteria or threshold,if any,used to evaluate each question. 3. "Potentially Significant Impact'is appropriate if there is substantial evidence that an effect is significant.If there are one or more"Potentially Significant..Impact"entries when the determination is made,an EIR is required. 4. "Potentially Significant Unless Mitigation Incorporated"applies where the incorporation of mitigation measures has reduced an effect from "Potentially Significant Impact" to a "Less than Significant Impact." The lead agency must describe the mitigation measures, and briefly explain how they reduce the effect to a less than significant level (mitigation measures from Section 17,"Earlier Analysis,"may be cross-referenced). 5. Earlier analysis may be used where, pursuant to the tiering, program EIR, or other CEQA process, an effect has been adequately analyzed in an earlier EIR or negative declaration. Section 15063 (c) (3) (D) of the California Code of Regulations. Earlier analyses are discussed in Section 17 at the end of checklist. 6. Lead agencies are encouraged to incorporate into the checklist references to information sources for potential impacts (e.g. general plans, zoning ordinances). Reference to a previously prepared or outside document should, whereappropriate,include a reference to the page or pages where the statement is substantiated. 7. Supporting Information Sources: A source list should be attached, and other sources used or individuals contacted should be cited in the discussion.In this case,a brief discussion should identify the following: a) Earlier Analysis Used. Identify and state where they are available for review. b) Impacts Adequately Addressed. Identify which effects from the above checklist were within the.scope of and adequately analyzed in an earlier document pursuant to applicable legal standards, and state whether such effects were addressed by mitigation measures based on earlier analysis. c) Mitigation Measures. For effects that are "Less than Significant with Mitigation Measures Incorporated," describe the mitigation measures which were incorporated or refined from the earlier document and the extent to which they address site-specific conditions for the project. 1 / CITY OF SAN LUIS OBISPO 5 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 ipH Ll- a- Attachment'3 Potentially Issues,Discussion and Supporting Information Sources Potentially Significant Less Than No Sources Significant Unless Significant Impact GPA/ER 11-10(Water&Wastewater Management Element Update) Issues Mitigation Impact Incorporated 1.AESTHETICS. Would theproject: a) Have a substantial adverse effect on a scenic vista? 1 X b) Substantially damage scenic resources, including, but not X limited to, trees, rock outcroppings, open space, and historic buildings within a local or state scenic highway? c) Substantially degrade the existing visual character or quality of X the site and its surroundings? d) Create a new source of substantial light or glare, which would X adversely affect day or nighttime views in the area? Evaluation: a)b)c)d) The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs.No specific site is under consideration.No impacts to aesthetics would occur. Conclusion: No Impact. 2.AGRICULTURE RESOURCES. Would theproject: a) Convert Prime Farmland, Unique Farmland, or Farmland of 1,2,9 X Statewide Importance (Farmland), as shown on the maps pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency,to non-agricultural use? b) Conflict with existing zoning for agricultural use or a X Williamson Act contract? c) Involve other changes in the existing environment which,due to 12,13 X their location or nature, could result in conversion of Farmland to non-agricultural use? Evaluation: a)b)c)The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs. Water and wastewater service is intended to serve land envisioned for development under the General Plan. The Margarita Area Specific Plan, Orcutt Area Specific Plan and Airport Area Specific Plan.were identified as areas in the Land Use Element of the General Plan. Potential impacts to agriculture were found to be less than significant sure to the marginal suitability of soils for agricultural use.No impacts to agricultural resources would occur. Conclusion:The project does not have the potential to impact agricultural resources. 3. AIR QUALITY. Would theproject: a) Violate any air quality standard or contribute substantially to an 1,8 X existing or projected air quality violation? b) Conflict with or obstruct implementation of the applicable air X quality plan? c) Expose sensitive receptors to substantial pollutant X concentrations? d) Create objectionable odors affecting a substantial number of X people? e) Result in a cumulatively considerable net increase of any X criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed qualitative thresholds for ozone precursors)? CITY OF SAN LUIS OBISPO 6 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 pl+q-73 Attachment 3 Potentially Issues,Discussion and Supporting Information Sources Potentially Significant Less Than Sources Significant Unless Significant No GPA/ER 11-10(Water&Wastewater Management Element Update) Issues Mitigation Impact Impact Inco orated Evaluation: a)b)c)d)e) The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs.No specific site is under consideration.No impacts to air quality would occur. Conclusion:The project will have no impact on air quality. 4. BIOLOGICAL RESOURCES. Would theproject: a) Have a substantial adverse effect,either directly or indirectly or 1 X through habitat modifications, on any species identified as a candidate,sensitive,or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S.Fish and Wildlife Service? b) Have a substantial adverse effect, on any riparian habitat or X other sensitive natural community identified in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S.Fish and Wildlife Service? c) Conflict with any local policies or ordinances protecting x biological resources, such as a tree preservation policy or ordinance(e.g.Heritage Trees)? d) Interfere substantially with the movement of any native resident X or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of wildlife nursery sites? e) Conflict with the provisions of an adopted habitat Conservation X Plan, Natural Community Conservation Plan, or other approved local,regional,or state habitat conservation plan? f) Have a substantial adverse effect on Federally protected x wetlands as defined in Section 404 of the Clean Water Act (including, but not limited to, marshes, vernal pools, etc.) through direct removal, filling, hydrological interruption, or other means? Evaluation: a)b)c)d)e)O The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs.No specific site is under consideration. Conclusion: No impacts to biological resources would occur. 5.CULTURAL RESOURCES. Would theproject: a) Cause a substantial adverse change in the significance of a 1,9 x historic resource?(See CEQA Guidelines 15064.5) b) Cause a substantial adverse change in the significance of an x archaeological resource?(See CEQA Guidelines 15064.5) c) Directly or indirectly destroy a unique paleontological resource x or site or unique geologic feature? d) Disturb any human remains, including those interred outside of }( formal cemeteries? CITY OF SAN LUIS OBISPO 7 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 Pl-Ty- 7y Attachment'3 Potentially Issues,Discussion and Supporting Information Sources Potentially Significant Less Than No Sources Significant Unless Significant Impact GPA/ER 11-10(Water&Wastewater Management Element Update) Issues Mitigation Impact Incorporated Evaluation: a)b)c)d) The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs.No specific site is under consideration.No impacts to cultural resources would occur. Conclusion:No Impact. 6. GEOLOGY AND SOILS. Would theproject: a) Expose people or structures to potential substantial adverse 3,9 effects,including risk of loss,injury or death involving: 1. Rupture of a known earthquake fault, as delineated in the X most recent Alquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area,or based on other substantial evidence of a known fault? II. Strong seismic ground shaking? X III. Seismic-related ground failure,including liquefaction? X IV. Landslides or mudflows? X b) Result in substantial soil erosion or the loss of topsoil? X c) Be located on a geologic unit or soil that is unstable, or that X would become unstable as a result of the project,and potentially result in on or off site landslides, lateral spreading,subsidence, liquefaction,or collapse? d) Be located on expansive soil, as defined in Table 18-1-B of the X Uniform Building Code(1994),creating substantial risks to life or property? Evaluation: a)b)c)d) The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs.The update will not expose people to geologic hazards as no specific site is under consideration. Conclusion:No Impact. 7. GREENHOUSE GAS EMISSIONS. Would theproject: a) Generate greenhouse gas emissions, either directory or X indirectly, that may have a significant impact on the environment? b) Conflict with an applicable plan, policy or regulation adopted 1 X for the purpose of reducing the emissions of greenhouse as? Evaluation: a)b)The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections,updating background information,and clarifying the City's water and wastewater goals,policies and programs.The General Plan Conservation and Open Space Element contains policies and programs, and City practices result in reduced energy use from implementation of more efficient practices and installation of more energy-efficient equipment.The Water and Wastewater Management Element does not conflict with these provisions and continues to support buildout consistent with the General Plan. No impacts associated with greenhouse gas emissions would occur. Conclusion:No Impact. CITY OF SAN Luis OBISPO 8 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 plqLl Attachment 3 Potentially Issues,Discussion and Supporting Information Sources Potentially Significant Less Than No Sources Significant Unless Significant Impact GPA/ER 11-10(Water 8 Wastewater Management Element Update) Issues Mitigation Impact Incorporated 8. HAZARDS AND EL ZARDOUS MATERIALS. Would the pro'ect: c) Create a significant hazard to the public or the environment 3,9,10 X through the routine use, transport or disposal of hazardous materials? d) Create a significant hazard to the public or the environment X through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? e) Emit hazardous emissions or handle hazardous or acutely X hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school? f) Expose people or structures to existing sources of hazardous X emissions or hazardous or acutely hazardous materials, substances,or waste? g) Be located on a site which is included on a list of hazardous X materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, it would create a significant hazard to the public or the environment? h) For a project located within an airport land use plan, or within X two miles of a public airport,would the project result in a safety hazard for the people residing or working in the project area? i) Impair implementation of, or physically interfere with, the X adopted emergency reponse plan or emergency evacuation plan? j) Expose people or structures to a significant risk of lose, injury, X or death, involving wildland fires, including where wildlands are adjacent to urbanized areas or where residents are intermixed with wildlands? Evaluation: a)b)c)d)e)Og)h)The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs. The update includes eliminating an existing policy related to preventing discharge of materials that are toxic and proposes the inclusion of the City's Pretreatment Program to ensure discharge requirements are met.No impacts associated with hazards or hazardous materials would occur. Conclusion:No Impact. 9. HYDROLOGY AND WATER QUALITY. Would the rooect: a) Violate any water quality standards or waste discharge 1,4 X requirements? b) Substantially deplete groundwater supplies or interfere X substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering of the local groundwater table level(e.g.The production rate of pre-existing nearby wells would drop to a level which would not support existing land uses for which permits have been granted)? c) Create or contribute runoff water which would exceed the X capacity of existing or planned storm water drainage systems or provide additional sources of runoff" into surface waters (including, but not limited to, wetlands, riparian areas, ponds, springs,_creeks, streams, rivers, lakes, estuaries, tidal areas, bas ocean etc.)? �� CITY OF SAN Luis OBISPo 9 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 Attachment 3 J Potentially Issues,Discussion and Supporting Information Sources Potentially Significant Less Than No Sources Significant Unless Significant Impact GPAIER 11-10(Water&Wastewater Management Element Update) Issues Mitigation Impact Incorporated d) Substantially alter the existing drainage pattern of the site or X area in a manner which would result in substantial erosion or siltation onsite or offsite? - e) Substantially alter the existing drainage pattern of the site or X area in a manner which would result in substantial flooding onsite or offsite? f) Place housing within a 100-year flood hazard area as mapped X on a Federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? g) Place within a 100-year flood hazard area structures which X would impede or redirect flood flows? h) Will the project introduce typical storm water pollutants into X ground or surface waters? i)• Will the project alter ground water or surface water quality, X temperature,dissolved oxygen,or turbidity? Evaluation: a)c)d)e)f)g)h)i)The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs.No impacts to hydrology or water quality will occur as no specific site is under consideration. b)The City has utilized an average of approximately 130 acre feet of groundwater per year but accounted for 500 acre feet in its safe annual yield. The Water and Wastewater Management Element update proposes a modified policy related to its accounting for the use of groundwater in safe annual yield. The existing policy states: "The City will maximize the use of groundwater in conjunction with other available water supplies to maximize the yield and long-term reliability of all water resources and to minimize overall costs for meeting urban water demands. The City shall monitor water levels at the well sites to determine whether reduction or cessation of pumping is appropriate when water levels approach historic low levels." The proposed policy states that that "Due to limitations for the use of the groundwater resources, the City will continue to use groundwater for domestic purposes when available,but will not add this source of supply to its safe annual yield." The proposed policy change will not deplete groundwater supplies or interfere substantially with groundwater recharge. Conclusion. No Impact 10. LAND USE AND PLANNING. Would theproject: a) Conflict with applicable land use plan, policy, or regulation of 1-7 X an agency with jurisdiction over the project adopted for the purpose of avoiding or mitigating an environmental effect? b) Physically divide an established community? X c) Conflict with any applicable habitat conservation plan or natural X community conservationplans? Evaluation: a)b)c)The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals,policies and programs. The update is consistent with other elements of the City's General Plan, will not conflict with adopted habitat conservation plans,and will not divide and established community as no specific site is under consideration. Conclusion: No Impact. 11.NOISE. Would the project result in: a) Exposure of people to or generation of "unacceptable" noise 6 X levels as defined by the San Luis Obispo General Plan Noise Element, or general noise levels in excess of standards established in the Noise Ordinance? CITY OF SAN LUIS OBISPO 10 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 ply q-77- 'Attachment 3 Potentially Issues,Discussion and Supporting Information Sources Potentially Significant Less Than No Sources Significant Unless Significant Impact GPA/ER 11-10(Water&Wastewater Management Element Update) Issues Mitigation Impact Inco orated b) A substantial temporary, periodic, or permanent increase in X ambient noise levels in the project vicinity above levels existing without the project? c) Exposure of persons to or generation of excessive groundbome X vibration or groundbome noise levels? d) For a project located within an airport land use plan, or within X two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? Evaluation: a)b)c)d)The update of the Water and Wastewater Management Element will not conflict with the City's Noise Element and Noise Ordinance. Conclusion: No Impact. 12. POPULATION&HOUSING. Would theproject: a) Induce substantial population growth in an area, either directly 2, 12, X (for example by proposing new homes or businesses) or 13 indirectly (for example, through extension of roads or other -infrastructure)? b) Displace substantial numbers of existing housing, necessitating X the construction of replacement housing elsewhere? c) Displace Substantial numbers of people, necessitating the construction of replacement housing elsewhere? Evaluation: a)b)c)The proposed Water and Wastewater Management Element update will not induce substantial population growth or displace existing housing or people. Growth supported by these policies and programs is growth that was envisioned and evaluated as part of the Land Use Element of the General Plan and subsequent specific plans for the expansion areas. Any use of water beyond General Plan build-out,requires that the current General Plan build-out be evaluated and modified first, based on its own merits and not driven or limited by water supply availability. Conclusion: No impact to population or housing will occur with the proposed project. 13. PUBLIC SERVICES. Would the project result in substantial adverse physical impacts associated with the provision, or need, of new or physically altered government facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times, or other performance objectives for any of the public services: a) Fire protection? X b) Police protection? X c) Schools? X d) Parks? X e) Roads and other transportation infrastructure? X Other public facilities? X Evaluation: a)b)c)d)e)f) The Water and Wastewater Management Element update involves organizational changes to the water and . wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs.The update will not result in impacts to the public services listed above. Conclusion: The project will have no impacts on public services. `� CITY OF SAN LUIS OBISPO 11 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 CAttachment 3 Potentially Issues,Discussion and Supporting Information Sources Potentially Significant Less Than No Sources Significant Unless Significant Impact GPAIER 11-10(Water&Wastewater Management Element Update) Issues Mitigation Impact Inco orated 14.RECREATION. Would theproject: a) Increase the use of existing neighborhood or regional parks of 7 X other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated? b) Include recreational facilities or require the construction or X expansion of recreational facilities, which might have an adverse physical effect on the environment? Evaluation: a)b)The project is not residential in nature and is not likely to have any impacts on recreation.No recreational features are proposed as part of the project. Conclusion: No impacts to recreation are identified as part of the proposed amendments. 15. TRANSPORTATION/TRAFFIC. Would theproject: a) Cause an increase in traffic which is substantial in relation to 4 X the existing traffic load and capacity of the street system? b) Exceed, either individually or cumulatively, a level of service X standard established by the county congestion management agency for designated roads and highways? _ c) Substantially increase hazards due to design features(e.g. sharp X curves or dangerous intersections) or incompatible uses (e.g. . farm equipment)? d) Result in inadequate emergency access? X e) Result in inadequate parking capacity onsite or offsite?= X f) Conflict with adopted policies supporting alternative X transportation(e.g.bus turnouts,bicycle racks)? g) Conflict with the with San Luis Obispo County Airport Land' X Use Plan resulting in substantial safety risks from hazards, noise,or a change in air trafficpatterns? Evaluation: a)b)c)d)e)f)g)The project is an update of the Water and Wastewater Management Element will not result in any impacts to transportation or traffic in the City. Conclusion: No impacts to traffic or transportation are identified. 16.UTILITIES AND SERVICE SYSTEMS. Would theproject: a) Exceed wastewater treatment requirements of the applicable X Regional Water Quality Control Board? b) Require or result in the construction or expansion of new water X treatment,wastewater treatment, water quality control,or storm drainage facilities, the construction of which could cause significant environmental effects? c) Have sufficient water supplies available to serve the project II X from existing entitlements and resources, or are new and expanded water resources needed? d) Result in a determination by the wastewater treatment provider, X which serves or may serve the project that it has adequate capacity to serve the project's projected demand in addition to the provider's existing commitment? e) Be served by a landfill with sufficient permitted capacity to X accommodate theproject's solid waste disposal needs? �i CITY OF SAN LUIS OBISPO 12 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 P// q- -17-9 Attachment 3 Potentially Issues,Discussion and Supporting Information Sources Potentially Significant Less Than No _ Sources Significant Unless Significant Impact GPAIER 11-10(Water&Wastewater Management Element Update) Issues Mitigation Impact Incorporated f) Comply with federal, state, and local statutes and regulations X related to solid waste? Evaluation: a)b)c)d)e)f) The Water and Wastewater Management Element update involves organizational changes to the water and wastewater sections, updating background information, and clarifying the City's water and wastewater goals, policies and programs. Development projects are evaluated more specifically for their potential impacts on utilities and service systems. Environmental impacts associated with the Nacimiento Water Project were analyzed in the Nacimiento Water Project Final Environmental Impact Report(SCH#2001061022),dated December 2003. Conclusion: No impacts have been identified relative to utilities or service systems. 17.MANDATORY FINDINGS OF SIGNIFICANCE. a) Does the project have the potential to degrade the quality of the X environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory? No significant impacts have been identified during the review of the Water and Wastewater Management Element update. b) Does the project have impacts that are individually limited, but X cumulatively considerable? ("Cumulatively considerable" means that the incremental effects of a project are considerable when viewed in connection with the effects of the past projects, the effects of other current projects,and the effects of probable. futureprojects) There are no impacts identified in this Initial Study. c) Does the project have environmental effects, which will cause X substantial adverse effects on human beings, either directly or indirectly? The Water and Wastewater Management Element update will not create environmental effects that will have an adverse impact on humans. 18.EARLIER ANALYSES. Earlier analysis may be used where,pursuant to the tiering,program EIR, or other CEQA process, one or more effects have been adequately analyzed in an earlier EIR or Negative Declaration. Section 15063 (c)(3) (D). In this case a discussion should identify the following items: a Earlier analysis used. Identify earlier analyses and state where they are available for review. N/A b) Impacts adequately addressed. Identify which effects from the above checklist were within the scope of and adequately analyzed in an earlier document pursuant to applicable legal standards,and state whether such effects were addressed by mitigation measures based on the earlier analysis. N/A c) Mitigation measures. For effects that are"Less than Significant with Mitigation Incorporated,"describe the mitigation measures Which were incorporated or refined from the earlier document and the extent to which they address site- specific conditions of the project. N/A CITY OF SAN Luis Owspo 13 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 p//q � `t 17 Attachment 3 Potentially Issues,Discussion and Supporting Information Sources Potentially Significant Less Than No Sources Significant Unless Significant Impact GPA/ER 11-10(Water&Wastewater Management Element Update) Issues I Mitigation Impact Incorporated 19.. SOURCE REFERENCES. 1. City of SLO General Plan Conservation and Open Space Element,May 2006. 2. City of SLO General Plan Land Use Element S tember2004. _3. City of SLO General Plan Safety Element,,Jul2000. 4. City of San Luis Obispo Circulation Element November 1994. 5. City of San Luis Obispo Housing Element,January 2010. 6. City of San Luis Obispo Noise Element and Noise Guidebook,May 1996. 7. City of San Luis Obispo Parks and Recreation Element April 2001. 8. CEQA Air Quality Handbook Air Pollution Control District 2003. 9. City of San Luis Obispo Land Use Inventory and Geographic Information System,current database. 10. County of San Luis Obispo Airport Land Use Plan for SLO County Airport,May 2005. 11. County of San Luis Obispo, Nacimiento Water Project Final Environmental Impact Report (SCH 42001061022), December 2003. 12. City of San Luis Obispo, Final Environmental Impact Report for the Orcutt Area Specific Plan(SCH#2004011059), December 2009. 13 City of San Luis Obispo,Final Program Environmental Impact Report for the Airport Area and Margarita Area Specific Plans and Related Facilities Master Plans(SCH#2000051062),September 2003. Exhibit 1: Proposed update to Chapter 8.Water and Wastewater Management Element,June 1,2010. CITY OF SAN LUIS OBISPO 14 INITIAL STUDY ENVIRONMENTAL CHECKLIST 2010 JOH Fri Attachment RESOLUTION NO. PC-5545-10 (2010 Series) A RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF SAN LUIS OBISPO RECOMMENDING THE CITY COUNCIL ADOPT AMENDMENTS TO THE WATER AND WASTEWATER MANAGEMENT ELEMENT OF THE GENERAL PLAN AND ADOPT A NEGATIVE DECLARATION OF ENVIRONMENTAL IMPACT (GPA/ER 11-10) WHEREAS, State law requires cities and counties to adopt a general plan; and WHEREAS, the Water and Wastewater Management Element of the San Luis .Obispo City General Plan was last updated in 2006 in compliance with State law, and WHEREAS, a, periodic update of the Water and Wastewater Management Element is necessary for the information to remain current; and WHEREAS, the City of San Luis Obispo has prepared an updated Draft General Plan Water and Wastewater Management Element to address current information and long-term community-wide needs for water and wastewater treatment provision, and WHEREAS, the potential environmental impacts of the updated Water and Wastewater Management Element have been evaluated in accordance with the California Environmental Quality Act pursuant to an initial environmental study (City File number ER 11-10) and the Community Development Director has prepared a negative declaration of environmental impact; and WHEREAS, the Planning Commission, held hearings on April 14, 2010, and June 9, 2010, and considered public input on the amendments to the General Plan Water and Wastewater Management Element as shown in the Draft Water and Wastewater Management Element and proposed Negative Declaration of Environmental Effect. NOW, THEREFORE, BE IT RESOLVED by the Planning Commission of the City of San Luis Obispo as follows: SECTION 1. Findings. The Planning Commission, after considering the proposed amendments to the Water and Wastewater Management Element, environmental determination, staff recommendations, public testimony and correspondence, and reports thereon, makes the following findings: 1. The proposed amendments, contained in the draft Water and Wastewater Management Element Update are consistent with the General Plan. SECTION 2. Environmental Determination. The Planning Commission recommends the City Council determine that the proposed General Plan Water and Wastewater Management Element amendments will not create a substantial environmental effect as defined by the California Environmental Quality Act and supports the initial environmental study (City File Number ER 11-10) and associated Negative Declaration prepared by the Community Development Director. PH q-$"�- Attachments, Resolution No.PC-5545-10(2010 aeries) Page 2 Upon motion by Commissioner Meyer, seconded by Commissioner Stevenson, and on the following roll call vote: AYES: Commissioners Meyer, Stevenson, Whittlesey, Multari, and Boswell NOES: None REFRAIN: None ABSENT`. Commissioners Singewald and Draze The foregoing resolution was passed and adopted this 9h day of June 2010. AM Kim Murry, Secr as Planning Commission _ J Attachment 5 SAN LUIS OBISPO PLANNING COMMISSION MINUTES June 9, 2010 ROLL CALL: Present: Commissioners Michael Boswell, Eric Meyer, Charles Stevenson, Vice- Chairperson Mary Whittlesey, and Chairperson Michael Multad Absent: Commissioners Michael Draze and Airlin Singewald. Staff: Deputy Community Development Director Kim Murry, Conservation Manager Ron Munds, Utilities Project Manager Jennifer Metz, Assistant City Attorney Andrea Visveshwara, and Recording Secretary Janet Miller ACCEPTANCE OF THE AGENDA: The agenda was accepted as presented. MINUTES: Minutes of May 26, 2010, were approved as amended. PUBLIC COMMENTS ON NON-AGENDA ITEMS: There were no comments. PUBLIC HEARINGS: 1. City-Wide. GPA/ER 11-10: Review of Water/Wastewater Element Update; City of San Luis Obispo — Utilities Dept., applicant. (Continued from April 14 and May 26, 2010, meetings)(Ron Munds and Jennifer Metz) Ron Munds Conservation Manager, presented the staff report, recommending the Commission adopt the Resolution recommending the City Council approve the Water and Wastewater Management Element update and proposed Negative Declaration of Environmental Effect. Gary Henderson, Water Division Manager, and Carrie Mattingly, Utilities Director, provided support for Staff Report. PUBLIC COMMENTS: There were no comments. COMMISSION COMMENTS: The Commission reviewed the report and requested clarification of language and tables. There were no further comments made from the Commission. On motion by Commr. Meyer. seconded by Commr. Stevenson to adopt the staff recommendation, including corrected pages, to adopt the Resolution recommending the City Council approve the Water and Wastewater Management Element update and Proposed Negative Declaration of Environmental Effect. Planning Commission Minutes Attachment 5 June 9, 2010 Page 2 AYES: Commrs. Boswell, Meyer, Stevenson, Whittlesey, and Multari NOES: None RECUSED: None ABSENT: Commissioners Draze and Singewald The motion passed on a 5:0 vote.. 2. Staff a. Agenda Forecast — Staff provided an agenda forecast for the June 23`d Commission meeting. 3. Commission — The Commission requested an update regarding their direction to agendize a discussion of the Commission bylaws specifically related to meeting start time. Staff provided an update and indicated the item will be advertised and scheduled for the July 14th Commission meeting. ADJOURIVIENT: The meeting was adjourned at 7:30 p.m. Respectfully submitted by, Janet Miller Recording Secretary Approved by the Planning Commission on _June 23, 2010 Rya . Betz Sue ising Administrativ stant i j I �mmm."-A . council memoRAn6um ,clty of san Luis oBispo; utiUties aEpautment DATE: July 6, 2010 RECEIVED TO: City Council JUL 0 6 2010 FROM: Came Mattingly, Utilities Director SLO CITY CLERK Gary W. Henderson, Water Division Manager SUBJECT: Reliability Reserve City Charter Language Councilmember Carter requested the specific City Charter language relative to the reliability reserve and the date that it was adopted. Section 909 of the City Charter is shown below and was added by a community vote on Measure"P"on November 5, 1996. "As identified in the Water Management Element of the General Plan, the City shall strive to acquire additional water supplies as a "reliability reserve" to protect the Cityfrom future water shortages. Once the City has acquired a portion or all of the reliability reserve, the additional water supply shall only be used to meet City needs during unpredictable changes such as a new worst case drought, loss of one of the City's water sources, contamination of a source, or failure of a new source to provide projected yield, and not to allow additional development." N�tiz.D 4�P �q COUNCIL D DIR [�gga��ao (-4" 2GG p FIN DIR RED FILE CTA2ft6 arinre PIAE CHIEF (YATT©RNEY nw Din MEETING AGENDA etLEAKtGAiG ffrPOL-ICE SFIF DA 16 o ITEM #�, A�-T HRA06 i €� X10 i Ne+.)nniES CCuaCtL t rr"I wt6ti�_ �-i.latt DocumenQ