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HomeMy WebLinkAbout06-14-2016 Item 21 Council Reading File - Compiled CC Appendices 2015 Urban Water Management Plan Appendix I: Notification to Agencies, Public Hearing & Plan Adoption 2015 Urban Water Management Plan 2015 Urban Water Management Plan Appendix II: Water Resource Status Reports (2011-2015) Water Resources Status Report 2011 Prepared by: Gary Henderson, Water Division Manager Ron Munds, Utilities Conservation Manager Jennifer Metz, Utilities Project Manager TABLE OF CONTENTS I. EXISTING WATER SUPPLY STATUS ................................................................... 1 Current Status ......................................................................................................................... 1 II. MULTI-SOURCE WATER SUPPLY ....................................................................... 3 Water Resource Availability .................................................................................................. 3 Salinas & Whale Rock Reservoirs ......................................................................................... 3 Nacimiento Reservoir ............................................................................................................. 4 Recycled Water ....................................................................................................................... 4 Groundwater ........................................................................................................................... 4 Water Supply Accounting and Demand ............................................................................... 5 III. WATER DEMAND MANAGEMENT .................................................................... 6 Customer Service/Technical Assistance ................................................................................ 8 Public Information & Education ........................................................................................... 9 IV. PROJECTED WATER SUPPLY SITUATION.................................................... 10 Reservoir Storage Curve ...................................................................................................... 10 V. SUMMARY............................................................................................................. 10 Attachment 1 City of San Luis Obispo 2011 Water Resources Status Report The 2011 Water Resources Status Report for the City of San Luis Obispo was prepared by the Utilities Department to provide the City Council and community members with an update on the status of existing water resources. It also serves as an update on water supply projects being implemented to meet the community’s future needs. The report covers four main areas: I. Existing Water Supply Status II. Multi-Source Water Supply III. Water Demand Management IV. Projected Water Supply Situation The report evaluates the existing water supply situation for the City, identifies the amount of water currently available to serve new development, and discusses issues relative to existing polices and water projects and programs being pursued. I. EXISTING WATER SUPPLY STATUS The City currently utilizes five sources of water supply to meet the community’s water demand: Salinas Reservoir (also referred to as Santa Margarita Lake), Whale Rock Reservoir, Nacimiento Reservoir, groundwater, and recycled water from the City’s Water Reclamation Facility. The City’s newest water supply from Nacimiento Reservoir began delivering water to the City’s water treatment plant in January of 2011. Current Status For the 2010-11 rainfall year (October 1 through September 30), rainfall for the City was significantly above normal as reflected in Table 1. As of June 30, 2011, Salinas and Whale Rock Reservoirs were at 97.9 percent and 81.0 percent of total capacity respectively. For the 2010 calendar year, the water demand for the City was provided from four sources as shown in Table 2. The total water demand (based on water production figures) for all City uses in 2010 was 5,489 acre feet which was approximately 10.5 percent lower than the total water use for 2009. Table 1: Area Rainfall Location 2010/11 1 Average % of Average City of SLO – Reservoir #1 31.5” 22.4” 141% Whale Rock Reservoir 29.71” 19.7” 150% Salinas Reservoir 35.01” 21.4” 164% 1. Rainfall through June 30, 2011 2011 Water Resources Status Report Attachment 1 Page 2 Chart 1: Water Use by Category Single Family Residential 41% Multi-family Residential 20% Non- Residential 29% Landscape Irrigation 10% The total amount of City water use shown in Table 2 does not include domestic water delivered to Cal Poly State University. This use is separately accounted for from the University’s available water supply from Whale Rock Reservoir. As of June 30, 2011, the City’s available water storage in Salinas Reservoir (above minimum pool, see definitions at end of report) was 21,334 acre feet. The City’s share of the Whale Rock storage (above minimum pool) was 14,425 acre feet. The combined total water storage available to meet City water needs from these two sources was 35,760 acre feet. This equates to 83 percent of maximum available storage. Based on the available water storage in both reservoirs, estimated water from Nacimiento Reservoir, estimated groundwater production, estimated recycled water deliveries, and assuming the return of drought conditions as experienced during the late 1980s, the City has approximately eleven years of water supply. This estimate is based on data derived from the City’s computerized reservoir storage model and is shown in Figure 5 (Figures are provided at the end of report). The model assumes additional conservation measures, consistent with the City’s Water Shortage Contingency Plan, are implemented when supplies are estimated to last three years or less. The various stages of conservation are indicated in Figure 5 and are discussed in more detail in the City’s Water Shortage Contingency Plan. The Water Shortage Contingency Plan is an appendix to the Urban Water Management Plan that was updated and adopted in June of 2011. Water Consumption The total City water use for 2010 was approximately 10.5 percent lower than the use for 2009. Table 3 shows the population estimates from 2001 through 2010 as well as the total City water use and corresponding per capita use rate. The past ten-year average per capita water use was 121.6 gallons per person per day (gpcd). Based on the policies contained in the Water and Wastewater Management Element of the General Plan, the City uses the ten-year average per capita water use to project the required water needed to serve the build-out population as identified in the Land Use Element of the General Plan. Table 2: Water Supply Sources (acre feet) Salinas Whale Rock Groundwater Recycled Total Water Used 2,426 af 2,757 af 153 af 153 af 5,489 af 2011 Water Resources Status Report Attachment 1 Page 3 Chart 1 shows the water use between different customer classes for 2010 which is consistent with previous years (landscape irrigation is only that water use specific to dedicated landscape meters). While the per capita water use increased following the end of the 1986-91 drought and the end of mandatory conservation measures in 1992, the use rate has somewhat stabilized as shown in Table 3. The 2010 per capita water use was approximately 109 gpcd, which was a significant decrease from the 2009 use of 122 gpcd. There are likely a number of factors that led to this past year’s drop in water use including significant rainfall and recessionary impacts (vacancy rates, etc.). II. MULTI-SOURCE WATER SUPPLY The City has adopted a multi-source water policy to provide increased reliability for meeting the community’s water supply needs. With the addition of the Nacimiento Reservoir supply, the City now has five sources of water and has accomplished the goal of diversifying its water supply portfolio to meet current and future community needs. The following sections provide an overview of each water source available to the City. Water Resource Availability Salinas & Whale Rock Reservoirs Salinas and Whale Rock Reservoirs have been the City’s primary water supplies for over 50 years. The County of San Luis Obispo Flood Control and Water Conservation District provides the oversight, operations, and maintenance of the Salinas Dam and water delivery facilities for the benefit of the City. The City pays the County for the associated costs for these services. The City provides the oversight, operations, and maintenance of the Whale Rock Reservoir for the benefit of the Whale Rock Commission. The Whale Table 3: Population Estimates, Water Use & Rainfall Year Population Total Water Use (acre feet) Per Capita (gpcd) Rainfall1 (inches) 2001 44,347 5,886 119 24.53 2002 44,482 6,032 121 15.94 2003 44,357 5,968 120 22.91 2004 44,298 6,239 126 16.08 2005 44,687 6,098 122 40.09 2006 44,559 5,999 120 30.352 2007 44,433 6,493 130 10.282 2008 44,579 6,359 127 19.922 2009 44,829 6,134 122 31.772 2010 44,948 5,489 109 31.502 Ten-year per capita average 121.6 1. Rainfall amounts for July through June from Cal Poly weather station 2. Rainfall amount from County rain gage at City’s Reservoir #1 2011 Water Resources Status Report Attachment 1 Page 4 Rock Commission is a joint powers agency made up of Cal Poly State University, California Men’s Colony, and the City. The City draws water from these two reservoirs in a coordinated manner to maximize the long-term water supply available from these two sources. In addition, the City has adopted policies in the Water and Wastewater Management Element of the General Plan to account for reductions in storage capacity at each lake resulting from siltation. Nacimiento Reservoir The City has been involved in the Nacimiento Project planning efforts for over 15 years. Construction of the 45-mile pipeline and related facilities was completed in December 2010. Water deliveries to the City’s water treatment plant began on January 5, 2011. The City has a contractual right to 3,380 acre feet per year and will likely maximize the use of this water each year since the contractual amount of water cannot be carried over (“banked”) from year to year. Current use for this first year is estimated to be about 2,000 acre feet. Recycled Water Recycled water use for the 2010 year totaled just over 153 acre feet, up over ten percent from 138 acre feet in 2009. During 2010, six new sites (eight additional meters) were connected to the City’s recycled water distribution system (Table 4 below). The use of the recycled water at all of these sites is for landscape irrigation. Table 4: New Sites using Recycled Water in 2010: Site Address AF Los Verdes Park I HOA (2 meters) Los Osos Valley Road at South Higuera 6.5 acre feet DeVaul Park 1593 Madonna Road 2.0 acre feet DeTolosa HOA (2 meters) 1501 and 1601 Madonna Road 3.7 acre feet Los Osos Valley Road median Madonna Road @ Los Osos Valley Road 0.5 acre feet Mission Community Bank 3380 Higuera S. 0.5 acre feet Meathead Movers & Storage 3600 Higuera S. 0.5 acre feet Total 13.7 acre feet Two new development sites, Prefumo Creek Commons and the Hampton Inn, are planned to receive recycled water in 2011. These new recycled water use sites are estimated to use ten acre feet per year. Groundwater The City uses one domestic well to supplement its other water supply sources. In addition, there is a non-potable well at the City’s Corporation Yard for use for construction activities. There are two wells at the City’s Laguna Lake Golf Course that provide for a portion of the golf course irrigation needs. The additional irrigation demands at the golf course are met with recycled water. 2011 Water Resources Status Report Attachment 1 Page 5 Based on the policies adopted in the City’s Water and Wastewater Management Element of the General Plan, Table 5 below shows the available water supplies to serve the community’s water demands. Table 5: Water Resource Availability Water Resource 2010 Annual Availability Salinas & Whale Rock Reservoirs 6,940 AF Safe Annual Yield Nacimiento Reservoir 3,380 AF Contractual Limit Recycled Water 153 AF 2010 Annual Usage Siltation to 2060 (500 AF) WWME Policy A 4.2.2 TOTAL 9,973 AF Water Supply Accounting and Demand The policies in the Water and Wastewater Management Element of the General Plan establish that 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 which are discussed in more detail below and shown in Table 6. Primary Water Supply The primary water supply is defined as the amount of water needed to serve the build-out population of the City as identified in the Land Use Element of the General Plan. The quantity of water needed for the primary water supply is calculated using the ten-year average of actual per capita water use, shown in Table 3, and the City’s build-out population (57,200). Reliability Reserve The reliability reserve provides a buffer for future unforeseen or unpredictable long-term impacts to the City’s available water supply. The quantity of water for the reliability reserve is established using twenty percent of the ten-year average of actual per capita water use and the existing City population. The reliability reserve concept is included in the City’s Charter (Section 909) which identifies that the water cannot be used to allow additional development. Secondary Water Supply The secondary water supply is the amount of water remaining from the City’s available water resources above those needed to meet the primary water supply and reliability reserve. The secondary supply is identified to meet peak water demand periods or short- term loss of City water supply sources. 2011 Water Resources Status Report Attachment 1 Page 6 Table 6: 2011 Water Supply Accounting Total Primary Water Supply Reliability Reserve Secondary Water Supply 9,973 AF 7,791 AF 1,237 AF 945 AF III. WATER DEMAND MANAGEMENT The City’s water conservation program is an integral part of its overall water management strategy. The program has assisted in adding reliability to the water supply system over the years. In the late 1980’s, the City implemented effective water efficiency programs and policies that allowed continued growth and economic development within the community even during water-constrained periods. Even with a more diversified multi-source water supply portfolio in 2011, conservation will continue to play an important role in the future as the City potentially faces new water supply challenges attributable to climate change and regulatory requirements related to statewide water use reduction goals. Historically the City has utilized the California Urban Water Conservation Council’s (CUWCC) Best Management Practices (BMPs) as defined in the Memorandum of Understanding Regarding Urban Water Conservation in California (MOU) as a guide for the City’s water conservation program. The BMPs are programs and services that MOU signatories agree to implement over time. Based on the BMPs, the City’s water conservation program in the past has been divided into three primary components: financial incentives, technical assistance, and public education. Because of the changing regulatory requirements and water supply availability, the following sections describe the shifting role of water conservation within the community and the evolution of the programs and services offered by the Utilities Department. Recent Water Use Efficiency Legislation There are two pieces of legislation that have been passed since 2007 that require water agencies to implement water conservation measures in order to be eligible for state grants, loans, or assistance. Eligibility for grants and loans apply to both water and wastewater projects that the City may undertake. The following is a summary of the legislation: AB 1420 Assembly Bill 1420 (Stats. 2007, ch. 628) amended the Urban Water Management Planning Act, Water Code Section 10610 et seq., to require, effective January 1, 2009, that the terms of, and eligibility for, any water management grant or loan made to an urban water supplier and awarded or administered by the Department of Water Resources (DWR), State Water Resources Control Board, or California Bay-Delta Authority, be conditioned on the implementation of the water Demand Management Measures (DMMs) 2011 Water Resources Status Report Attachment 1 Page 7 described in Water Code Section 10631(f). DWR was given discretionary authority to determine whether an urban water supplier is eligible for a grant or loan. SBx7-7 Senate Bill x7-7 was enacted in November 2009, requiring all water suppliers to increase water use efficiency. The legislation sets an overall goal of reducing per capita urban water use by 20 percent by December 31, 2020. The law directs incremental progress towards this goal by reducing per capita water use by at least ten percent by December 31, 2015. The law states: • Each urban retail water supplier shall develop water use targets and an interim water use target by July 1, 2011. • An urban retail water supplier shall include in its water management plan, due July 2011, the baseline daily per capita water use, water use target, interim water use target, and compliance per capita water use. • Effective 2016, urban retail water suppliers who do not meet the water conservation requirements established by this bill are not eligible for state grants or loans. The City’s 2010 Urban Water Management Plan provides a complete discussion of the legislative requirements. Table 7 summarizes the per capita targets the City must meet in order to be in compliance with the law. Financial Incentives Summary Financial incentives have been an important tool for the water conservation program since 1990. For a number of years, toilet retrofitting was the focus of the incentive program with the toilet rebate program running from June 1990 through June 2007. The high efficiency washing machine rebate program was added to the financial incentive program in 2001 and is still in place today within minimum funding levels. New irrigation equipment incentive pilot programs were tested in the summer/fall of 2008 and were added to the incentive program in 2009. The following is a summary of the financial incentive programs. High Efficiency Washing Machine Replacements Table 7: 2015 and 2020 Targets Year Adjusted Per Capita Target 2015 120 gpcd 2020 117 gpcd Table 8: Washing Machine Rebates Year Rebate Savings in acre 2011 Water Resources Status Report Attachment 1 Page 8 The high efficiency washing machine rebate program was implemented in 2001 and offers a $150 dollar rebate for qualifying machines. As indicated in Table 8, participation in the program has been up and down over the years. In 2009 the program had a record high of 175 rebates. In 2010 rebate funds were reduced by 50% thereby limiting the number of participants in the program. It is estimated that about 14.11 acre feet of water is saved annually by these water efficient machines with energy savings as a side benefit. Irrigation Equipment Replacement Added to the financial incentive program in late 2008, the first irrigation efficiency rebates were issued in 2009. The focus of the program is on the replacement of old irrigation controllers in commercial landscapes. Prior to receiving the incentive, the irrigation system is required to be audited and repaired to bring it up to standards. Table 9 summarizes the participation in the program. Customer Service/Technical Assistance Residential and Commercial Assistance The City offers technical assistance to water customers via free indoor and outdoor water consultations or audits. The consultations can either be by phone or in person. In person consultations include indoor and outdoor leak detection services, irrigation system evaluation, landscape plant material information, and other information on how to use water efficiently. The requests for consultations are typically received from people experiencing high water bills, residents participating in the low income assistance program, or customers requesting a utility bill adjustment through the Utility Billing Adjustment Committee. Water audits often reveal problems which are then corrected by the property owner resulting in lower water use and reduced water bills. The most common problems experienced by customers are summarized in Table 10. A total of 1,814 contacts were made, either by letter, telephone, or direct contact during 2010. feet per year 2001-2005 354 5.97 2006 47 .78 2007 76 1.2 2008 147 2.26 2009 175 2.70 2010 76 1.2 Total 799 14.11 Table 9: 2010 Irrigation Equipment Description Number Irrigation Controllers 11 Table 10: 2010 Water Audits Description Number Excessive Irrigation 302 Toilet Leak 248 Irrigation Leak 173 Service Line Leak 63 2011 Water Resources Status Report Attachment 1 Page 9 Past practice included mailing letters to customers using more than 25 units of water per billing cycle in the summer and 20 units in the winter. In 2010, 1,475 letters were sent to customers with high water use. This program is being curtailed for fiscal year 2011-2012 due to adjusted priorities and workload measures in the Utilities Conservation section. Public Information & Education In an ongoing effort to educate the public, the City provides informational brochures on a variety of water conservation, water quality, energy conservation, and recycling topics upon request. Additionally, a quarterly newsletter is produced which focuses on current information regarding water, wastewater, stormwater, and solid waste issues. The newsletter is mailed to approximately 21,000 households. Additional information has been distributed through paid media advertising, public service announcements, and participation at Farmer’s Market, home shows, etc. In 1999, the Utilities Department implemented a water education program within San Luis Coastal Unified School District. The program targets third through fifth grade students and compliments the study of water within the School District’s existing curriculum. Teachers have been enthusiastic about the program, particularly with the field trip to the Water Reclamation Facility. During the 2010-2011 school year, ten class presentations and eight field trips were given for schools within the City. The class presentations were 45 minutes and covered the subjects of the water cycle, treatment, use, conservation, and reclamation. The classroom presentation is a prerequisite for the field trip. A new water quality module focusing on storm water runoff and creek and ocean health has been developed. This will add another option for teachers to select when looking for water education activities. Eight water quality class presentations were given during this school year. Summary The City has implemented numerous programs over the years which have resulted in a dramatic decrease in per capita water use since the late 1980’s. The water conservation program has provided many economic benefits to the community while adding reliability to the water supply. The program has also brought per capita water use to a level where it will be relatively straightforward for the community to be in compliance with the state’s mandatory water reduction goals in the future. With adequate water supplies to meet both the current and future water needs as envisioned in the City’s General Plan, the water conservation program will play a different but continuing role for the City in the future. 2011 Water Resources Status Report Attachment 1 Page 10 IV. PROJECTED WATER SUPPLY SITUATION Reservoir Storage Curve The Reservoir Storage Curve is integral to the City's annual water resource analysis. It is based on a computer model used to estimate the City's future reservoir storage in Salinas and Whale Rock Reservoirs, utilizing historical drought weather patterns, water use projections, reservoir data, and available water supplies from Nacimiento Reservoir, recycled water, and limited groundwater. The model is used to forecast the City's water supply position and to make certain water policy recommendations. Figure 5 shows the Reservoir Storage Curve. The model assumes implementation of Stage I conservation when supplies are projected to last only three years. Stages II and III conservation measures are implemented when water supplies are estimated to last only two years and one year, respectively (as shown on Figure 5). The model was updated to reflect the City's current water storage and assumptions relative to water demands and drought conditions. The model predicts current water supplies will last into the year 2022 (Figure 5). V. SUMMARY This past year’s rainfall was significantly above normal for the area. The City’s surface water supplies from Salinas and Whale Rock Reservoirs are in very good shape. Even with these available supplies, the community must continue to utilize water in an efficient manner. Water conservation will continue to be an important element of the City’s water resources planning in the future and the State’s requirement for reducing urban water use. With the multi-source water policy, the completion of the Nacimiento Project this year, planned expansion of users for recycled water, strong water conservation programs, and other related policies which were adopted as part of the Water and Wastewater Management Element, the City has implemented a long-term strategy which will ensure a reliable supply of water to meet the current and future needs of the community. Attachments: 1. Definitions & Information 2. Figures 1-5 Definitions & Information Safe Annual Yield: The maximum quantity of water which can be delivered from the water source each year during a critical dry period (i.e. historical drought period). Minimum Pool: Minimum amount of water in Whale Rock or Salinas Reservoirs below which water deliveries must be stopped. This amount is established at 2,000 acre feet which is left in the reservoirs to support aquatic habitat and other wildlife. Acre Foot: ∗ 1 acre foot = 325,851 gallons ∗ Enough water to cover a football field with 1 foot of water ∗ Enough water to serve approximately 3.5 average single family homes (in San Luis Obispo) per year Gallons per Capita per Day (gpcd): Calculation = Total Acre Feet x 325,851 City Population x 365 Present Water Demand (acre feet per year): Calculation = 145 gpcd x Current City Population x 365 325,851 Salinas Reservoir: Maximum Storage Capacity = 23,842.9 acre feet Minimum Pool = storage amount when water extractions must cease = 2,000 acre feet Surface Area = 730 acres Drainage Area = 112 square miles = 71,700 acres Whale Rock Reservoir: Maximum Storage Capacity = 40,662 acre feet Minimum Pool = storage amount when water extractions must cease = 2,000 acre feet Surface Area = 594 acres Drainage Area = 20.3 square miles = 13,000 acres Water Resources Status Report 2012 Prepared by: Ron Munds, Utilities Conservation Manager Jennifer Metz, Utilities Project Manager Wade Horton, Water Division Manager TABLE OF CONTENTS I. EXISTING WATER SUPPLY STATUS ................................................................... 1 Current Supply Status ............................................................................................................ 1 2011 Summary ......................................................................................................................... 1 II. MULTI-SOURCE WATER SUPPLY ....................................................................... 2 Water Supply Sources ............................................................................................................ 3 Salinas & Whale Rock Reservoirs ......................................................................................... 3 Nacimiento Reservoir ............................................................................................................. 3 Recycled Water ....................................................................................................................... 3 Groundwater ........................................................................................................................... 3 Water Resource Availability .................................................................................................. 4 Water Supply Accounting ...................................................................................................... 4 III. WATER DEMAND MANAGEMENT .................................................................. 5 IV. PROJECTED WATER SUPPLY SITUATION .................................................... 7 Reservoir Storage Curve ........................................................................................................ 7 V. SUMMARY................................................................................................................. 7 Attachment 1 City of San Luis Obispo 2012 Water Resources Status Report The 2012 Water Resources Status Report updates the City Council and community members on water supply accounting and demand projections as specified in the Water and Wastewater Management Element of the General Plan, Policy A 5.3.1. The report covers four main areas: I. Existing Water Supply Status II. Multi-Source Water Supply III. Water Demand Management IV. Projected Water Supply I. EXISTING WATER SUPPLY STATUS The City currently utilizes five water sources to meet community water demand: 1. Salinas Reservoir (also referred to as Santa Margarita Lake) 2. Whale Rock Reservoir 3. Nacimiento Reservoir 4. Recycled water from the City’s Water Reclamation Facility 5. Groundwater Current Supply Status As of June 1, 2012, the City’s available water storage in Salinas Reservoir was 18,573 acre feet. The City’s share of the Whale Rock storage was 15,287 acre feet. The combined total water storage available to meet City water needs from these two sources was 33,860 acre feet, equating to 73 percent of maximum available storage. Based on available storage from Salinas & Whale Rock reservoirs, contractual water from Nacimiento Reservoir, estimated groundwater production, estimated recycled water deliveries, and assuming an extended drought until reservoirs levels are drawn down to minimum pool (see Definitions) the City has approximately eleven years of water supply. This estimate is based on data derived from the City’s Reservoir Storage Model and is shown in Figure 5 (figures are provided at the end of report). The model assumes conservation measures, consistent with the City’s Water Shortage Contingency Plan, are implemented when supplies are estimated to last three years or less. The various stages of conservation are indicated in Figure 5. The Water Shortage Contingency Plan details the City’s conservation measures related to drought and is an appendix to the Urban Water Management Plan , adopted June 2011. The City now has five water sources, achieving the goal of a diversified water supply portfolio to meet current and future community needs 2012 Water Resources Status Report Attachment 1 Page 2 2011 Summary Table 1 summarizes City 2011 water demand per source. The total 2011 calendar year water demand (based on water production figures) was 5,285 acre feet. Water use per category is shown in Chart 1. Table 1: 2011 City Water Demand Sources (acre feet) Salinas Whale Rock* Nacimiento Groundwater Recycled Total Water Used 2,830 14 2,181 100 160 5,285 *W ater delivered to Cal Poly State University is excluded from City Water Demand Historical water use is summarized in Table 2, as well as corresponding population, per capita use rate, and precipitation. The 2011 per capita water use was approximately 104 gallons per person per day (gpcd), representing a 5 gpcd decrease from the previous year. The decrease in per capita demand is consistent with nationwide trending, due in part to the success of conservation and recessionary impacts. The ten-year per capita average water use is 120.1 gpcd. Based on policies contained in the Water and Wastewater Management Element of the General Plan (WWME), the City uses the ten-year average to project water required to serve build-out population as identified in the Land Use Element of the General Plan. Water use per customer class is summarized in Chart 1. Table 2: Population Estimates, Water Use & Rainfall Year Population Total Water Use (acre feet) Per Capita (gpcd) Rainfall1 (inches) 2002 44,482 6,032 121 13.08 2003 44,357 5,968 120 16.40 2004 44,298 6,239 126 17.73 2005 44,687 6,098 122 16.21 2006 44,559 5,999 120 14.80 2007 44,433 6,493 130 6.14 2008 44,579 6,359 127 15.84 2009 44,829 6,134 122 18.18 2010 44,948 5,489 109 33.53 2011 45,418 5,285 104 21.16 Ten-year per capita average 120.1 1. Rainfall amounts for calendar year source: Cal Poly CIMIS Weather Station II. MULTI-SOURCE WATER SUPPLY Per WWME Policy A 2.2.1, the City shall utilize multiple water resources to meet its water supply needs. 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. Maintaining different type sources [surface water, recycled water (for irrigation), ground water] provides greater reliability and flexibility; as does maintaining surface water sources in distinct watersheds. With the delivery of Nacimiento 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 Single Family Residential 38% Multi- Family Residential 19% Commercial Institutional 34% Landscape Irrigation 9% Chart 1: 2011 Water Use by Category 2012 Water Resources Status Report Attachment 1 Page 3 Reservoir water beginning in January 2011, the City now has five water sources, achieving the goal of diversifying its water supply portfolio to meet current and future community needs. The following sections provide an overview of each water source available to the City. Water Supply Sources Salinas & Whale Rock Reservoirs Salinas and Whale Rock Reservoirs have served as the City’s primary water supplies for over 50 years. The County of San Luis Obispo Flood Control and Water Conservation District provides the oversight, operations, and maintenance of the Salinas Dam and water delivery facilities for the benefit of the City. The City pays the County for the associated costs for these services. The City provides the oversight, operations, and maintenance of the Whale Rock Reservoir for the benefit of the Whale Rock Commission. The Whale Rock Commission is a joint powers agency made up of Cal Poly State University, California Men’s Colony, and the City. The City draws water from these two reservoirs, as well as the Nacimiento Reservoir, in a coordinated manner to maximize the long-term water supply available from these two sources. In addition, the City has adopted policies in the WWME to account for reductions in storage capacity at each lake resulting from siltation. Nacimiento Reservoir The City has been involved in the Nacimiento Project planning efforts for over 15 years. Construction of the 45- mile pipeline and related facilities was completed in December 2010. Water deliveries to the City’s water treatment plant began on January 5, 2011. The City has a contractual right to 3,380 acre feet per year and will likely maximize the use of this water source each year since the contractual amount of water cannot be carried over (“banked”) from year to year. Recycled Water Recycled water use for calendar year 2011 year totaled approximately 158 acre feet, up three percent from 153 acre feet in 2010. During 2011, three new sites (six additional meters) were connected to the City’s recycled water distribution system to provided landscape irrigation – see Table 3. Table 3: New Sites using Recycled Water in 2011: Site Address AF Margarita Medians (3 meters) Margarita 1.2 Prefumo Creek Commons (2 meters) Froom Ranch Way @ Los Osos Valley Road 4.5 MD2 Hydrant Meter/Detention Basin Prado Road 9.1 Total 14.8 Three new development sites, the Olive Garden, Hampton Inn and Prado Road Streetscape, are planned to receive recycled water in 2012. These new recycled water use sites are estimated to use five acre feet per year. Groundwater The City uses one domestic well to supplement its other water supply sources. In addition, there is a non- potable well at the City’s Corporation Yard for construction activity use. There are two additional non-potable wells at the City’s Laguna Lake Golf Course that provide for a portion of the golf course irrigation needs. The Salinas Dam 2012 Water Resources Status Report Attachment 1 Page 4 additional irrigation demands at the golf course are met with recycled water. Per WWME Policy A 3.2.3, the City will continue to use groundwater for domestic purposes when available, but will not consider this source of supply as a part of its water resources availability due to limitations for the use of groundwater resources. Water Resource Availability Based on WWME Section 3, water resource availability to serve the community’s water demand is summarized in Table 4. Calendar Year 2011 water availability totaled 9,980 Acre-Feet. Table 4: Water Resource Availability Water Resource 2011 Annual Availability Salinas & Whale Rock Reservoirs 6,940 AF Safe Annual YieldA Nacimiento Reservoir 3,380 AF Dependable YieldB Recycled Water 160 AF 2011 Annual UsageC Siltation from 2010 to 2060 (500 AF) WWME Policy A 4.2.2D TOTAL 9,980 AF A. Quantity of water which can be withdrawn every year while operating both reservoirs in coordinated operations under critical drought conditions. Safe Annual Yield determined from computer model, which accounts for siltation loss through 2010 (per WWME Policy A 4.2.1) B. Dependable Yield is the contractual amount of water the City has rights to from Nacimiento Reservoir. C. The quantity of recycled water included is the actual prior year’s recycled water usage (2011) per WWME Policy A 7.2.2 D. Reservoir siltation is a natural occurrence that reduces storage capacity over long periods, resulting in the reduction of safe annual yield Water Supply Accounting Per WWME Section 5, the City will account for water supplies necessary to meet three specific community needs: 1) Primary water supply, 2) Reliability reserve, 3) Secondary water supply. Primary Water Supply The primary water supply is defined as the amount of water needed to serve the build-out population of the City as identified in the Land Use Element of the General Plan. The quantity of water needed for the primary water supply is calculated using the ten-year average of actual per capita water use, shown in Table 2, and the City’s build-out population (57,200 per 1994 Land Use Element of the General Plan, revised 2010), per WWME Policy A 5.2.2: Primary Water Supply = Ten Year Average per Capita Water Use x City Build-out Population = 120.1 gal/cap-day x 57,200 cap x 365 day/year x Acre-Ft/325,853 gal = 7,695 Acre-ft/year Reliability Reserve The reliability reserve provides a buffer for future unforeseen or unpredictable long-term impacts to the City’s available water supply. The quantity of water for the reliability reserve is established using twenty percent of the ten-year average of actual per capita water use and the existing City population (45,418, 2011 population). The reliability reserve concept is included in the City’s Charter (Section 909) which identifies that the water may not be used to serve future development, and is defined per WWME Policy A 5.2.3: Reliability Reserve = Ten Year Average per Capita Water Use x 2011 City Population x 20% = 120.1 gal/cap-day x 45,418 cap x 365 day/year x Acre-Ft/325,853 gal x 20% = 1,222 Acre-ft/year Secondary Water Supply The secondary water supply is the amount of water remaining from the City’s available water resources above those needed to meet the primary water supply and reliability reserve. The secondary supply is identified to meet peak water demand periods or short-term loss of City water supply sources, per WWME Policy A 5.2.4: 2012 Water Resources Status Report Attachment 1 Page 5 Secondary Water Supply = Current Annual Availability – Primary Water Supply - Reliability Reserve = 9,980 Acre-ft/yearA – 7,695 Acre-ft/year – 1,222 Acre-ft/yr = 1,063 Acre-ft/year A.2011 Annual Availability Water supply accounting is summarized in Table 5: Table 5: 2011 Water Supply Accounting Total Primary Water Supply Reliability Reserve Secondary Water Supply 9,980 AF 7,695 AF 1,222 AF 1,063 AF III. WATER DEMAND MANAGEMENT The City’s water conservation program is an integral part of its overall water management strategy. The program has assisted in adding reliability to the water supply system over the years. In the late 1980’s, the City implemented effective water efficiency programs and policies that allowed for continued community growth and economic development during water-constrained periods. Even with a more diversified 2011 multi-source water supply portfolio, conservation continues to play an important role considering potential water supply impacts associated with climate change and regulatory requirements related to statewide water use reduction goals. Taking into account changing regulatory requirements and water supply availability, the following sections describe the shifting role of water conservation within the community and the evolution of the programs and services offered by the Utilities Department. California Urban Water Conservation Council – Best Management Practices Historically the City has utilized the California Urban Water Conservation Council’s (CUWCC) Best Management Practices (BMPs) as defined in the Memorandum of Understanding Regarding Urban Water Conservation in California (MOU) as a guide for the City’s water conservation program. The BMPs are programs and services that MOU signatories agree to implement over time. Though BMPs implementation is voluntary, all state regulatory agencies now recognize them as the standard for compliance with State law (discussed below). The City has fully implemented the required measures and is thus in compliance with all applicable State laws. Water Use Efficiency Legislation Legislation passed over the years requires water agencies to implement water conservation measures in order to be eligible for state grants, loans, or assistance. Eligibility for grants and loans apply to both water and wastewater projects that the City may undertake. A summary of the legislation follows: AB 1420 Assembly Bill 1420 (Stats. 2007, ch. 628) amended the Urban Water Management Planning Act, Water Code Section 10610 et seq., to require, effective January 1, 2009, that the terms of, and eligibility for, any water management grant or loan made to an urban water supplier and awarded or administered by the Department of Water Resources (DWR), State Water Resources Control Board, or California Bay-Delta Authority, be conditioned on the implementation of the water Demand Management Measures (DMMs) described in Water Code Section 10631(f). DWR was given discretionary authority to determine whether an urban water supplier is eligible for a grant or loan. 2012 Water Resources Status Report Attachment 1 Page 6 SBx7-7 Senate Bill x7-7 was enacted in November 2009, requiring all water suppliers to increase water use efficiency. The legislation sets an overall goal of reducing per capita urban water use by 20 percent by December 31, 2020. The law directs incremental progress towards this goal by reducing per capita water use by at least ten percent by December 31, 2015. The law states: • Each urban retail water supplier shall develop water use targets and an interim water use target by July 1, 2011. • An urban retail water supplier shall include in its water management plan, due July 2011, the baseline daily per capita water use, water use target, interim water use target, and compliance per capita water use. • Effective 2016, urban retail water suppliers who do not meet the water conservation requirements established by this bill are not eligible for state grants or loans. The City’s Urban Water Management Plan provides a complete discussion of the legislative requirements. Table 6 summarizes the per capita targets the City must meet in order to be in compliance with the law. Urban Water Management Planning Act Initially passed in 1984 and amended several times over the years, the Urban Water Management Planning Act requires water agencies to report on their progress in implementing Water Demand Management Measures outlined in the law. The law was amended so that full implementation of the BMPs would be accepted as being in compliance with the part of the law. The City’s 2010 Urban Water Management Plan provides a complete discussion of the City’s water conservation program and verification of compliance with the regulations of the act. Other Regulatory Requirements The Clean Water State Revolving Fund Requirements In order to qualify for a loan for any water or wastewater project from the State Water Resources Control Board an agency must provide verification that it is in compliance with either the Demand Management Measures in the Urban Water Conservation Planning Act or the CUWCC BMPs. 2011 Water Conservation Program Highlights Residential and Commercial Technical Assistance The most important program the Utilities Conservation Section offers is its technical assistance and support to the community. During 2011 the section responded to approximately 1,860 requests for assistance with high water bill, leak detection assistance, and general consultations regarding customer billing problems. The requests for consultations are typically received from people experiencing high water bills, residents participating in the low income assistance program, or customers requesting a utility bill adjustment through the Utility Billing Adjustment Committee. Water audits often reveal problems which are then corrected by the property owner resulting in lower water use and reduced water bills. In addition, the section processed approximately 400 utility billing adjustment requests during 2011. Table 6: 2015 and 2020 Targets Year Adjusted Per Capita Target 2015 120 gpcd 2020 117 gpcd Utilities Conservation responded to 1,860 requests for assistance in 2011 2012 Water Resources Status Report Attachment 1 Page 7 Public Information & Education In an ongoing effort to educate the public, the City provides informational brochures on a variety of water conservation, water quality, energy conservation, and recycling topics upon request. Additionally, a quarterly newsletter is produced which focuses on current information regarding water, wastewater, stormwater, and solid waste issues. The newsletter is mailed to approximately 21,000 households. Additional information has been distributed through paid media advertising, public service announcements, and participation at Farmer’s Market, home shows, etc. The Utilities Department continues to offer a water education program within San Luis Coastal Unified School District. The program targets third through fifth grade students and compliments the study of water within the School District’s existing curriculum. Teachers have been enthusiastic about the program, particularly with the field trip to the Water Reclamation Facility. IV. PROJECTED WATER SUPPLY SITUATION Reservoir Storage Curve The Reservoir Storage Curve is integral to the City's annual water resource analysis. It is based on a computer model used to estimate the City's future reservoir storage in Salinas and Whale Rock Reservoirs, utilizing historical drought weather patterns, water use projections, reservoir data, and available water supplies from Nacimiento Reservoir, recycled water, and limited groundwater. Figure 5 shows the Reservoir Storage Curve. The model assumes implementation of Stage I conservation when supplies are projected to last only three years. Stages II and III conservation measures are implemented when water supplies are estimated to last only two years and one year, respectively (as shown on Figure 5). The model was updated to reflect the City's current water storage and assumptions relative to water demands. Assuming the onset of an extended drought, the model predicts current water supplies will last into the year 2024 until Whale Rock and Salinas reservoirs are drawn down to minimum pool. (Figure 5). V. SUMMARY As of June 01, 2012, the City’s surface water supplies from Salinas and Whale Rock Reservoirs are at 73% of maximum storage. Even with these available supplies, the community must continue to utilize water in an efficient manner to meet the State’s requirement for reducing urban water use. With the multi-source water policy, including the delivery of Nacimiento water in 2011, the City has implemented a long-term strategy which will ensure a reliable supply of water to meet the current and future needs of the community. Attachments: 1. Definitions & Information 2. Figures 1 Definitions & Information Safe Annual Yield: The maximum quantity of water which can be delivered from the water source each year during a critical dry period (i.e. historical drought period). Minimum Pool: Minimum amount of water in Whale Rock or Salinas Reservoirs below which water deliveries must be stopped. This amount is established at 2,000 acre feet which is left in the reservoirs to support aquatic habitat and other wildlife. Acre Foot: ∗ 1 acre foot = 325,851 gallons ∗ Enough water to cover a football field with 1 foot of water ∗ Enough water to serve approximately 4 average single family homes (in San Luis Obispo) per year Gallons per Capita per Day (gpcd): Calculation = Total Acre Feet x 325,851 City Population x 365 Water Demand (acre feet per year): Calculation = gpcd x Current City Population x 365 325,851 Salinas Reservoir: Maximum Storage Capacity = 23,842.9 acre feet Minimum Pool = storage amount when water extractions must cease = 2,000 acre feet Surface Area = 730 acres Drainage Area = 112 square miles = 71,700 acres Whale Rock Reservoir: Maximum Storage Capacity = 40,662 acre feet Minimum Pool = storage amount when water extractions must cease = 2,000 acre feet Surface Area = 594 acres Drainage Area = 20.3 square miles = 13,000 acres       City of San Luis Obispo   2013 Water Resources Status Report Prepared by: Ron Munds, Utilities Conservation Manager Jennifer Metz, Utilities Project Manager Wade Horton, Deputy Director-Water City of San Luis Obispo  2013 Water Resources Status Report   TABLE OF CONTENTS   I. EXISTING WATER SUPPLY STATUS ................................... 1   Current Supply Status ...................................................................... 1   2012 Summary ................................................................................... 2  II. MULTI‐SOURCE WATER SUPPLY .................................... 4   Water Supply Sources ..................................................................... 4   Salinas & Whale Rock Reservoirs................................................ 4   Nacimiento Reservoir ...................................................................... 4   Recycled Water .................................................................................. 5   Groundwater ....................................................................................... 5   Water Resource Availability.......................................................... 5   Water Supply Accounting .............................................................. 5  III. WATER DEMAND MANAGEMENT ................................. 7  IV. PROJECTED WATER SUPPLY SITUATION ........................ 9   Reservoir Storage Curve ................................................................. 9  V.SUMMARY ................................................................... 10  LIST OF TABLES   Table 1: 2012 City Water Demand Sources .......................... 2  Table 2: Population Estimates, Water Use & Rainfall ........... 3  Table 3: 2012 Water Resource Availability ........................... 5  Table 4: 2012 Water Supply Accounting ............................... 7  Table 5: 2015 and 2020 Targets ............................................ 8    City of San Luis Obispo  2013 Water Resources Status Report   The 2013 Water Resources Status Report updates the City Council and community members on water  supply accounting and demand projections as specified in the Water and Wastewater Management  Element of the General Plan, Policy A 5.3.1.    The 2013 Report covers four main areas:     I. Existing Water Supply Status   II. Multi‐Source Water Supply  III. Water Demand Management  IV. Projected Water Supply     I. EXISTING WATER SUPPLY STATUS  The City currently utilizes five water sources to  meet community water demand:    1. Salinas Reservoir (also referred to as Santa  Margarita Lake)  2. Whale Rock Reservoir  3. Nacimiento Reservoir   4. Recycled water from the City’s Water  Reclamation Facility  5. Groundwater    Current Supply Status  As of September 1, 2013, the City’s available water storage in Salinas Reservoir was 11,148 acre feet.  The City’s share of available Whale Rock storage was 11,935 acre feet. The combined total water  storage available to meet City water needs from these two sources was 23,083 acre feet, equating to  53 percent of maximum available storage.    San Luis Obispo County is currently experiencing a D3 Extreme Drought as characterized by the  National Oceanic and Atmospheric Administration. Fortunately, based on available storage from  Salinas & Whale Rock reservoirs, contractual water from Nacimiento Reservoir, estimated groundwater  production, estimated recycled water deliveries, and assuming the continuation of an extended  drought, the City has approximately eight years of water supply until reservoirs levels are drawn down  to minimum pool (see Definitions).     This estimate is based on data derived from the City’s Reservoir Storage Model and is reflected in  Figure 1 (figures are provided at the end of report). The model assumes conservation measures are  implemented when supplies are estimated to last three years or less, consistent with the City’s Water  Salinas Whale Rock Nacimiento Groundwater Recycled 2013 Water Resources Status Report  Page 2  Shortage Contingency Plan. The various stages of conservation are indicated in Figure 1. The City’s  Water Shortage Contingency Plan details conservation measures related to drought and is an appendix  to the Urban Water Management Plan, adopted June 2011.     2012 Summary  Table 1 summarizes 2012 water demand per source. The total 2012 calendar year water demand  (based on water production figures) was 5,541 acre feet. Water use by category is shown in Chart 1.    Table 1: 2012 City Water Demand Sources  (in acre feet)    Salinas Whale Rock* Nacimiento Groundwater Recycled Total Water Demand 1,959 1,822 1,502  93 165  5,541   *Water delivered to Cal Poly State University is excluded from the City’s Water Demand.    2013 Water Resources Status Report  Page 3      Historical water use is summarized in Table 2, as well as corresponding population, per capita use rate,  and precipitation. The 2012 per capita water use was approximately 109 gallons per capita per day  (gpcd), representing a 5 gpcd increase from the previous year.     The ten‐year average water use is 119 gpcd. Based on policies contained in the General Plan’s Water  and Wastewater Management Element (WWME), the City uses the ten‐year average to project water  required to serve build‐out population.     Table 2: Population Estimates, Water Use & Rainfall    Year Population Total Water Use  (acre feet)  Per Capita  (gpcd)  Rainfall1 (inches)  2003 44,357 5,968 120 16.4  2004 44,298 6,239 126 21.0  2005 44,687 6,098 122 20.8  2006 44,559 5,999 120 17.2  2007 44,433 6,493 130 12.7  2008 44,579 6,359 127 18.1  2009 44,829 6,134 122 18.9  2010 44,948 5,489 109 36.0  2011 45,418 5,285 104 18.9  2012 45,308 5,541 109 21.5  Ten‐year per capita average 119   NOTE:  1. Rainfall amounts for calendar year source: Cal Poly CIMIS Weather Station         Single Family  Residential 40% Multi Family  Residential 20% Commercial  Institutional 30% Landscape  Irrigation 10% Chart 1: 2012 Water Use by Category 2013 Water Resources Status Report  Page 4  II. MULTI‐SOURCE WATER SUPPLY   Per WWME Policy A 2.2.1, the City shall utilize  multiple water resources to meet its water supply  needs. 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. Maintaining different  type sources [surface water, recycled water (for  irrigation), ground water] provides greater  reliability and flexibility; as does maintaining  surface water sources in distinct watersheds. The  City has five water sources, achieving the goal of  diversifying its water supply portfolio to meet  current and future community needs.   Water Supply Sources  Salinas & Whale Rock Reservoirs  Salinas and Whale Rock Reservoirs have served as  the City’s primary water supplies for over 50 years.  The County of San Luis Obispo Flood Control and  Water Conservation District (County) provides the  oversight, operations, and maintenance of the  Salinas Dam and water delivery facilities for the  benefit of the City. The City pays the County for the  associated costs for these services. The City  provides the oversight, operations, and  maintenance of the Whale Rock Reservoir for the  benefit of the Whale Rock Commission. The Whale  Rock Commission is a joint powers agency made up  of Cal Poly State University, California Men’s  Colony, and the City. The City draws water from  these two reservoirs in a coordinated manner to  maximize the long‐term water supply available  from these two sources. In addition, the City has  adopted policies in the WWME to account for  reductions in storage capacity at each lake  resulting from siltation.   Nacimiento Reservoir  Water deliveries from the Nacimiento Reservoir began on January 5, 2011. The City has a contractual  right to 3,380 acre feet per year. The County operates and maintains the project that delivers water  from Nacimiento Reservoir to participating agencies (currently cities of Paso Robles and San Luis  Obispo, Atascadero Mutual Water Company, Templeton Community Services District, and County  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  Salinas Dam Whale Rock 2013 Water Resources Status Report  Page 5  Service Area 10A (Cayucos)). The Nacimiento Project Commission, which is made up of representatives  from each of the four agencies’ governing boards and County Representative (i.e. County Board of  Supervisors), provides oversight to project operations, maintenance, and the project budget.  Recycled Water  Recycled water use for calendar year 2012 year totaled approximately 165 acre feet, up four percent  from 158 acre feet in 2011. During 2012, two new sites (Olive Garden and Hampton Inn) were  connected to the City’s recycled water distribution system to provide landscape irrigation.  Groundwater  The City used one domestic well in 2012 (Pacific Beach #1 located on Los Osos Valley Road near Pacific  Beach school) to supplement its other potable water supply sources. In addition, the City maintains a  non‐potable well at the City’s Corporation Yard for construction activity use and  two non‐potable wells  at the City’s Laguna Lake Golf Course for a portion of the golf course irrigation (additional golf course  irrigation demand is met with recycled water). Per WWME Policy A 3.2.3, the City will continue to use  groundwater for domestic purposes when available, but will not consider this source of supply as a  part of its water resources availability due to limitations for the use of groundwater resources.    Water Resource Availability  Table 3 summarizes the Water Resource Availability (based on WWME Section 3), to serve community  water demand. Calendar Year 2012 water availability totaled 9,985 Acre‐Feet.    Table 3: 2012 Water Resource Availability    Water Resource  Acre Feet Description  Salinas & Whale Rock Reservoirs 6,940 Safe Annual Yield 1  Nacimiento Reservoir 3,380 Dependable Yield 2  Recycled Water 165 2012 Annual Usage 3  Siltation from 2010 to 2060 (500) WWME Policy A 4.2.2 4    9,985 2012 Annual Availability  NOTES:  1. Quantity of water which can be withdrawn every year while operating both reservoirs in coordinated operations under  critical drought conditions. Safe Annual Yield determined from computer model, which accounts for siltation loss through  2010 (per WWME Policy A 4.2.1)  2. Dependable Yield is the contractual amount of water the City has rights to from Nacimiento Reservoir.  3. The quantity of recycled water included is the actual prior year’s recycled water usage (2012) per  WWME Policy A 7.2.2  4. Reservoir siltation is a natural occurrence that reduces storage capacity over long periods, resulting in the reduction of  safe annual yield.  Water Supply Accounting  Per WWME Section 5, 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.    2013 Water Resources Status Report  Page 6  The primary water supply is defined as the amount of water needed to serve the build‐out population  of the City as identified in the Land Use Element of the General Plan. The quantity of water needed for  the primary water supply is calculated using the ten‐year average of actual per capita water use, shown  in Table 2, and the City’s build‐out population 53,700 (Table 4, 2013 Water and Wastewater  Development Impact Fee Study (as provided by Community Development staff working on LUCE  update), down from 57,200, 1994 Land Use Element to the General Plan, revised 2010. Per WWME  Policy A 5.2.2:     Primary Water Supply:     = Ten Year Average per Capita Water Use x City Build‐out Population  = 118.9 gal/cap‐day x 53,700 cap x 365 day/year x Acre‐Ft/325,853 gal  = 7,152 Acre‐Ft/year      The reliability reserve provides a buffer for future unforeseen or unpredictable long‐term impacts to  the City’s available water supply. The quantity of water for the reliability reserve is established using  twenty percent of the ten‐year average of actual per capita water use and the existing City population  (45,308, 2012 population). The reliability reserve concept is included in the City’s Charter (Section 909)  which identifies that the water may not be used to serve future development, and is defined per  WWME Policy A 5.2.3:     Reliability Reserve:     = Ten Year Average per Capita Water Use x 2012 City Population x 20%  = 118.9 gal/cap‐day x 45,308 cap x 365 day/year x Acre‐Ft/325,853 gal x 20%  = 1,207 Acre‐Ft/year      The secondary water supply is the amount of water remaining from the City’s available water  resources above those needed to meet the primary water supply and reliability reserve. The secondary  supply is identified to meet peak water demand periods or short‐term loss of City water supply  sources, per WWME Policy A 5.2.4:     Secondary Water Supply:     = Current Annual Availability – Primary Water Supply – Reliability Reserve  = 9,985 Acre‐Ft/year A – 7,152 acre‐Ft/year – 1,207 Acre‐Ft/year  = 1,626 Acre‐Ft/year  A.2012 Annual Availability                    Water supply accounting is summarized in Table 4.            2013 Water Resources Status Report  Page 7  Table 4: 2012 Water Supply Accounting  (in acre feet)   Total  Primary Water Supply Reliability Reserve Secondary Water Supply  9,985 7,152 1,207 1,626  III. WATER DEMAND MANAGEMENT  The City’s water conservation program is an integral part of its overall water management strategy.  The program has assisted in adding reliability to the water supply system over the years. In the late  1980’s, the City implemented effective water efficiency programs and policies that allowed for  continued community growth and economic development during water‐constrained periods. Although  the City’s investment in a multi‐source water supply portfolio satisfies anticipated build‐out water  demand, water is a valuable resource that should be used wisely.       The following sections describe regulatory requirements and services provided by the water  conservation program.    California Urban Water Conservation Council – Best Management Practices  Historically the City has utilized the California Urban Water Conservation Council’s (CUWCC) Best  Management Practices (BMPs) as defined in the Memorandum of Understanding Regarding Urban  Water Conservation in California (MOU) as a guide for the City’s water conservation program. The  BMPs are programs and services that MOU signatories agree to implement over time. Though BMP  implementation is voluntary, all state regulatory agencies now recognize them as the standard for  compliance with State law. The City has fully implemented the required measures and is thus in  compliance with all applicable State laws.    Water Use Efficiency Legislation  Legislation passed over the years requires water agencies to implement water conservation measures  in order to be eligible for state grants, loans, or assistance. Eligibility for grants and loans apply to both  water and wastewater projects that the City may undertake. A summary of the legislation follows:  AB 1420  Assembly Bill 1420 (Stats. 2007, ch. 628) amended the Urban Water Management Planning Act, Water  Code Section 10610 et seq., to require, effective January 1, 2009, that the terms of, and eligibility for,  any water management grant or loan made to an urban water supplier and awarded or administered  by the Department of Water Resources (DWR), State Water Resources Control Board, or California Bay‐ Delta Authority, be conditioned on the implementation of the water Demand Management Measures  (DMMs) described in Water Code Section 10631(f). DWR was given discretionary authority to  determine whether an urban water supplier is eligible for a grant or loan.    SBx7‐7  Senate Bill x7‐7 was enacted in November 2009, requiring all water suppliers to increase water use  efficiency. The legislation sets an overall goal of reducing per capita urban water use by 20 percent by  2013 Water Resources Status Report  Page 8  December 31, 2020. The law directs incremental progress towards this goal by reducing per capita  water use by at least ten percent by December 31, 2015. The law states:   Each urban retail water supplier shall develop water use targets and an interim water use target  by July 1, 2011.    An urban retail water supplier shall include in its water management plan, due July 2011, the  baseline daily per capita water use, water use target, interim water use target, and compliance  per capita water use.    Effective 2016, urban retail water suppliers who do not  meet the water conservation requirements established by  this bill are not eligible for state grants or loans.   The City’s Urban Water Management Plan provides a complete  discussion of the legislative requirements. Table 5 summarizes the  per capita targets the City must meet in order to be in compliance  with the law.     Urban Water Management Planning Act  Initially passed in 1984 and amended several times over the years, the Urban Water Management  Planning Act requires water agencies to report on their progress in implementing Water Demand  Management Measures outlined in the law. The law was amended so that full implementation of the  BMPs would be accepted as being in compliance with the part of the law. The City’s 2010 Urban Water  Management Plan provides a complete discussion of the City’s water conservation program and  verification of compliance with the regulations of the act.    Other Regulatory Requirements  The Clean Water State Revolving Fund Requirements  In order to qualify for a loan for any water or wastewater project from the State Water Resources  Control Board, an agency must provide verification that it is in compliance with either the Demand  Management Measures in the Urban Water Conservation Planning Act or the CUWCC BMPs.    2012 Water Conservation Program Highlights  Residential and Commercial Technical Assistance  The most important program the Utilities Conservation Section  offers is its technical assistance and support to the community.  During 2012 the section responded to approximately 1,700  requests for assistance with high water bill, leak detection  assistance, and general consultations regarding customer billing  problems. The requests for consultations are typically received  from people experiencing high water bills, residents  participating in the low income assistance program, or customers requesting a utility bill adjustment  through the Utility Billing Adjustment Committee. Water audits often reveal problems which are then  Utilities Conservation Staff  responded to 1,700 requests for  assistance in 2012  Table 5: 2015 and 2020 Targets  Year Adjusted Per  Capita Target  2015 120 gpcd  2020 117 gpcd  2013 Water Resources Status Report  Page 9  corrected by the property owner resulting in lower water use and reduced water bills. In addition,  approximately 465 utility billing adjustment requests were processed during 2011.    Public Information & Education  In an ongoing effort to educate the public, the City  provides informational brochures on a variety of  water conservation, water quality, energy  conservation, and recycling topics upon request.  Additionally, a quarterly newsletter is produced  which focuses on current information regarding  water, wastewater, stormwater, and solid waste  issues. The newsletter is mailed to approximately  21,000 households. Additional information was  distributed through paid media advertising, public  service announcements, and participation at  Farmer’s Market, home shows, etc.     The Utilities Department continues to offer a water education program within San Luis Coastal Unified  School District. The program targets third through fifth grade students and compliments the study of  water within the School District’s existing curriculum. Teachers have been enthusiastic about the  program, particularly with the field trip to the Water Reclamation Facility.      IV. PROJECTED WATER SUPPLY SITUATION  Reservoir Storage Curve  The Reservoir Storage Curve is integral to the City's annual water resource analysis. It is based on a  computer model used to estimate the City's future reservoir storage in Salinas and Whale Rock Reservoirs,  utilizing historical drought weather patterns, water use projections, reservoir data, and available water  supplies from Nacimiento Reservoir, recycled water, and limited groundwater. Figure 1 shows the  Reservoir Storage Curve. The model assumes implementation of Stage I conservation when supplies are  projected to last only three years. Stage II and III conservation measures are implemented when water  supplies are estimated to last only two years and one year, respectively (as shown on Figure 1/  conservation stages as defined in Section 8 of the 2010 Urban Water Management Plan). The model was  updated to reflect the City's current water storage and assumptions relative to water demands.    Assuming the onset of an extended drought, the model predicts current water supplies will last into the  year 2021 until Whale Rock and Salinas reservoirs are drawn down to minimum pool. (Figure 1).     2013 Water Resources Status Report  Page 10    V.  SUMMARY  As of September 1, 2013, the City’s surface water supplies from Salinas and Whale Rock Reservoirs are  at 53 percent of maximum storage. Assuming the onset of an extended drought, currently water  supplies are projected to last into the year 2021. With its multi‐source water policy, the City has  implemented a long‐term strategy which will ensure a reliable supply of water to meet the current and  future needs of the community.      ATTACHMENTS:    1. Definitions & Information  2. Figure 1        2013 Water Resources Status Report  Attachment 1  ATTACHMENT 1: DEFINITIONS & INFORMATION    Safe Annual Yield:   The maximum quantity of water which can be delivered from the water source each year during a critical  dry period (i.e. historical drought period).    Minimum Pool:  Minimum amount of water in Whale Rock or Salinas Reservoirs below which water deliveries must be  stopped. This amount is established at 2,000 acre feet which is left in the reservoirs to support aquatic  habitat and other wildlife.    Acre Foot:       One acre foot = 325,851 gallons   Enough water to cover a football field with one foot of  water   Enough water to serve approximately four average  single‐family homes (in San Luis Obispo) per year    Gallons per Capita per Day (gpcd):    Calculation = Total Acre Feet x 325,851    City Population x 365     Water Demand (acre feet per year):     Calculation = gpcd x Current City Population x 365       325,851    Salinas Reservoir:     Maximum Storage Capacity = 23,842.9 acre feet  Minimum Pool = storage amount when water extractions must cease = 2,000 acre feet   Surface Area = 730 acres   Drainage Area = 112 square miles = 71,700 acres    Whale Rock Reservoir:     Maximum Storage Capacity = 40,662 acre feet  Minimum Pool = storage amount when water extractions must cease = 2,000 acre feet   Surface Area = 594 acres   Drainage Area = 20.3 square miles = 13,000 acres      PREPARED BY: Ron Munds, Utilities Services Manager Jennifer Metz, Utilities Project Manager Wade Horton, Deputy Director-Water City of San Luis Obispo WATER RESOURCES STATUS REPORT 2014 REVISION 1: 14 OCTOBER 2014 This revision corrects per capita demand calculations and 2014 water supply accounting. The original report accepted by City Council on 02 September 2014 misapplied how Cal Poly agricultural water was accounted for in the city per capita demand calculations—this revision corrects that error. Table of Contents CITY OF SAN LUIS OBISPO 2014 Water Resources Status Report WATER SUPPLY Salinas and Whale Rock Reservoirs 3 Nacimiento Water Project 4 Recycled Water 4 Groundwater 4 Projected Water Supply 4 WATER DEMAND 5 WATER RESOURCE AVAILABILITY Water Supply Accounting 6 WATER DEMAND MANAGEMENT 2014 State Emergency Drought Regulations 7 REGIONAL COOPERATION 8 LIST OF TABLES 2013 City Water Supply by Source 3 Current Supply Status 3 City Wells 4 Population, Water Use & Rainfall 5 2014 Water Resource Availability 6 2014 Water Supply Accounting 7 LIST OF FIGURES Reservoir Storage Curve 5 2013 Water Use by Category 5 Water Conservation Legislation Summary 8 2 Designed by: Verdin Printed on recycled paper City of San Luis Obispo 2014 Water Resources Status Report Although the Governor declared a statewide drought emergency in January 2014 and San Luis Obispo County is currently experiencing a category D4 Exceptional Drought, our city’s local water supply remains reliable and secure. Assuming historical worst-case drought conditions and current reservoir storage levels, mid July 2014 water projection modeling estimates about seven years of water currently available (with the last three of those years being a period where mandatory conservation actions would occur). Investment in a multi-source water supply allows for responsible use even following 2013’s driest year on record. This 2014 Water Resources Status Report is prepared in accordance with the Water and Wastewater Management Element of the General Plan (WWME) Policy A 5.3.1. This report covers production and use information for calendar year 2013. WATER SUPPLY Per WWME Policy A 2.2.1, the city uses multiple water sources to meet its water supply needs. The city has four primary water supply sources including Whale Rock Reservoir, Salinas Reservoir, Nacimiento Reservoir, and recycled water (for irrigation), with groundwater serving as a fifth supplemental source. Calendar year 2013 water supply per source is summarized as follows: 2013 City Water Supply by Source (Acre Feet)* Salinas Whale Rock**Nacimiento Groundwater Recycled Total Water Demand 1,494 2,897 1,247 77 177 5,892 25%49%21%1%3%100% *Values rounded **Does not include Cal Poly Domestic or Agriculture SALINAS & WHALE ROCK RESERVOIRS Salinas and Whale Rock Reservoirs have served as the city’s primary water supplies for over 50 years. The city pays the County of San Luis Obispo Flood Control and Water Conservation District (County) to provide oversight, operations, and maintenance of the Salinas Dam and water delivery facilities. The City of San Luis Obispo provides the oversight, operations, and maintenance of the Whale Rock Reservoir for the benefit of the Whale Rock Commission, a joint powers agency made up of Cal Poly State University, California Men’s Colony, and the City. The city draws water from these two reservoirs Current Supply Status (As of July 1, 2014) Available Storage (Acre Feet) Salinas Reservoir 7,229 Whale Rock Reservoir (City Allocation)9,015 Total Storage 16,244 % of Maximum Storage 36% 32014 Water Resources Status Report to maximize the long-term water supply available from these two sources. In addition, the City has in a coordinated manner adopted policies in the WWME to account for reductions in storage capacity at each lake resulting from siltation. NACIMIENTO WATER PROJECT Water deliveries from the Nacimiento Reservoir began on January 5, 2011. The City has a contractual right to 3,380 acre feet per year. The county operates and maintains the project that delivers water from Nacimiento Reservoir to participating agencies (currently the cities of Paso Robles and San Luis Obispo, Atascadero Mutual Water Company, Templeton Community Services District, and County Service Area 10A [Cayucos]). The Nacimiento Project Commission, which is made up of representatives from each of the four agencies’ governing boards and County Representative (i.e. County Board of Supervisors), provides oversight to project operations, maintenance, and the project budget. RECYCLED WATER Recycled water use for calendar year 2013 totaled 177 acre feet, up seven percent from 165 acre feet in 2012. During 2013, two new sites (America’s Tire and Mangano Homes streetscape) were connected to the city’s recycled water distribution system to provide landscape irrigation. GROUNDWATER Per WWME Policy A 3.2.3, the city will continue to use groundwater for domestic purposes when available, but will not consider this source of supply as a part of its water resources availability due to limitations for the use of groundwater resources. City wells are summarized below: City Wells Well Type Use Location Pacific Beach #1 Potable Domestic Los Osos Valley Rd. near Pacific Beach School Corp Yard Well*Non Potable Construction Water City Corporation Yard Prado Rd. Laguna Lake Golf Course #1 Non Potable Irrigation Laguna Lake Golf Course SLO Farm**Non Potable Irrigation SLO Community Farm off HWY 101 & LOVR *Use of the City Corporation Yard well has increased from prior years. The Utilities Department is currently evaluating the use of this well. **Installed May 2014 for agricultural irrigation. PROJECTED WATER SUPPLY The City uses a computer model to estimate the city’s future reservoir storage in Salinas and Whale Rock Reservoirs, applying historical drought weather patterns, water use projections, reservoir data, and available water supplies from Nacimiento Reservoir, recycled water, and limited groundwater. The model assumes implementation of Stage I conservation when supplies are projected to last only three years. Stage II and III conservation measures are implemented when water supplies are estimated to last only two years and one year, respectively. Assuming an extended drought, the model predicts current water supplies will last seven years. See the following reservoir storage curve figure for details. 4 Designed by: Verdin Printed on recycled paper WATER DEMAND Water use by category for 2013 is shown here. Historical water use is summarized below, as well as corresponding population, per capita use rate, and precipitation. The 2013 per capita water use was 116 gallons per capita per day (gpcd). Based on WWME policies, the City uses the ten-year gpcd average to project water required to serve build-out population. The ten-year average water use is 119 gpcd. Population, Water Use & Rainfall Year Population Total Water Use (acre feet)Per Capita 1 (gpcd)Rainfall (inches) 2004 44,298 6,239 125.7 21.0 2005 44,687 6,098 121.8 20.8 2006 44,559 6,000 120.2 17.2 2007 44,433 6,494 130.5 12.7 2008 44,579 6,359 127.3 18.1 2009 44,829 6,134 122.2 18.9 2010 44,948 5,489 109.0 36.0 2011 45,418 5,285 103.9 18.9 2012 45,308 5,541 109.2 21.5 2013 45,541 5,892 115.5 3.8 Ten-year per capita average 118.5 NOTE: 1. Rainfall amounts for 2004–2012 calendar year source: Cal Poly CIMIS Weather Station. Rainfall amount for calendar year 2013: SLO Reservoir. 2013 Water Use by Category Reservoir Storage Curve Single Family Residential 41% Multi Family Residential 20% Commercial Institutional 29% Landscape Irrigation 11% 52014 Water Resources Status Report WATER RESOURCE AVAILABILITY The following table summarizes the Water Resource Availability (based on WWME Section 3), to serve community water demand. Water availability for 2014 is 9,997 Acre-Feet. 2014 Water Resource Availability Water Resource Acre Feet Description Salinas & Whale Rock Reservoirs 6,940 Safe Annual Yield1 Nacimiento Reservoir 3,380 Dependable Yield2 Recycled Water 177 2013 Annual Usage3 Siltation from 2010 to 2060 (500)WWME Policy A 4.2.24 9,997 2014 Annual Availability NOTES: 1. Quantity of water which can be withdrawn every year while operating both reservoirs in coordinated operations under critical drought conditions. Safe Annual Yield determined from computer model, which accounts for siltation loss through 2010 (per WWME Policy A 4.2.1). 2. Dependable Yield is the contractual amount of water the City has rights to from Nacimiento Reservoir. 3. The quantity of recycled water included is the actual prior year’s recycled water usage (2013) per WWME Policy A 7.2.2. 4. Reservoir siltation is a natural occurrence that reduces storage capacity over long periods, resulting in the reduction of safe annual yield. WATER SUPPLY ACCOUNTING Per WWME Section 5, the City will account for water supplies necessary to meet three specific community needs: 1. Primary water supply 2. Reliability reserve 3. Secondary water supply The primary water supply is defined as the amount of water needed to serve the build-out population of the city (Table 4, 2013 Water and Wastewater Development Impact Fee Study). The quantity of water needed for the primary water supply is calculated using the ten-year average of actual per capita water use, shown in Table 4, and the city’s build-out population 53,700. Per WWME Policy A 5.2.2: Primary Water Supply: = Ten Year Average per Capita Water Use x City Build-out Population = 118.5 gal/cap-day x 53,700 cap x 365 day/year x Acre-Ft/325,853 gal = 7128 Acre-Ft/year 6 Designed by: Verdin Printed on recycled paper The reliability reserve provides a buffer for future unforeseen or unpredictable long-term impacts to the city’s available water supply. The quantity of water for the reliability reserve is established using twenty percent of the ten-year average of actual per capita water use and the existing city population (45,541, 2013 population). The reliability reserve concept is included in the city’s charter (Section 909) which identifies that the water may not be used to serve future development, and is defined per WWME Policy A 5.2.3: Reliability Reserve: = Ten Year Average per Capita Water Use x 2013 City Population x 20% = 118.5 gal/cap-day x 45,541 cap x 365 day/year x Acre-Ft/325,853 gal x 20% = 1,209 Acre-Ft/year The secondary water supply is the amount of water remaining from the city’s available water resources above those needed to meet the primary water supply and reliability reserve. The secondary supply is identified to meet peak water demand periods or short-term loss of city water supply sources, per WWME Policy A 5.2.4: Secondary Water Supply: = Current Annual Availability – Primary Water Supply – Reliability Reserve = 9,997 Acre-Ft/year A – 7,128 Acre-Ft/year – 1,209 Acre-Ft/year = 1,660 Acre-Ft/year Water supply accounting is summarized as follows: 2014 Water Supply Accounting (Acre Feet) Total Primary Water Supply Reliability Reserve Secondary Water Supply 9,997 7,128 1,209 1,660 WATER DEMAND MANAGEMENT The City’s water conservation program is an integral part of its overall water management strategy. In the late 1980’s, the City implemented effective water efficiency programs and policies that allowed for continued community growth and economic development during water-constrained periods. Through strong conservation efforts, our community has reduced its annual average per capita water use from over 180 gallons in 1987 to 116 gallons in 2013. During 2013, 1750 requests were received for assistance with high water bills, leak detection assistance, and general consultations regarding billing problems. In addition, approximately 355 utility billing adjustment requests were processed during 2013. Legislation passed over the years requires water agencies to implement water conservation measures in order to be eligible for state grants, loans, or assistance, and is summarized in Figure 3. 72014 Water Resources Status Report Figure 3: Water Conservation Legislation Summary 2014 STATE EMERGENCY DROUGHT REGULATIONS On July 15, 2014, the California State Water Resources Control Board (Water Board) adopted emergency drought regulations that must be implemented by all urban water suppliers who have over 3,000 water connections regardless of that community’s water supply situation. Water purveyors who do not implement the mandatory requirements face up to $10,000 per day in fines and other penalties. The Emergency Regulations are in effect for 270 days but can be rescinded, extended or amended based on drought conditions. Notwithstanding the city’s stable water supply position, the Emergency Regulations specifically mandate that the City implement mandatory outdoor water restrictions and water waste prohibitions or face fines up to $10,000 a day and no access to state grants and loans. Accordingly, city council adopted an ordinance limiting the outdoor irrigation of ornamental landscape and turf with potable water to three days a week, and allocated funding for education and public outreach efforts. REGIONAL COOPERATION The City is a participating member of the Water Resources Advisory Council and Regional Water Management Group, which promotes collaborative, integrated management of water resources within San Luis Obispo County and provides policy recommendations to the County Board of Supervisors. In addition, the City participates in the Paso Robles Groundwater Basin Advisory Committee. URBAN WATER MANAGEMENT PLANNING ACT Passed in 1984, requires agencies to report progress in implementing Water Demand Management Measures law. The City’s 2010 Urban Water Management Plan outlines the City’s water conservation program and verification of compliance with the act. SBx7-7 Enacted in November 2009, requires increase in water use efficiency and sets goal of reducing per capita urban water use by 10% in 2015 and 20% in 2020. City target is 120 gpcd in 2015 and 117 gpcd in 2020 – city use was 116 gpcd in 2013, exceeding targets. AB 1420 Enacted in January 2009, specifies eligibility for water management grants or loans be conditioned on implementation of water Demand Management Measures described in Water Code Section 10631(f). CLEAN WATER STATE REVOLVING FUND REQUIREMENTS In order to qualify for a State Water Resources Control Board loan, an agency must comply with either the Demand Management Measures in the Urban Water Conservation Planning Act or the California Urban Water Conservation Council Best Management Practices.CITY COMPLIANT YES 8 Designed by: Verdin Printed on recycled paper CITY OF SAN LUIS OBISPO 2015 Water Resources Status Report This Report Covers the Time Period of October 1, 2014 through September 30, 2015 Salinas Reservoir Dam, February 2015. Photo credit: County of San Luis Obispo. PREPARED BY: Ron Munds, Utilities Services Manager Jennifer Metz, Utilities Projects Manager Aaron Floyd, Utilities Deputy Director-Water City of San Luis Obispo 2015 Water Resources Status Report 2 The Water Resources Status Report updates the City Council and community on existing water resources. This report focuses on seven main areas: I. Drought II. Water Supply III. Projected Water Supply IV. Water Demand V. Water Resource Availability VI. Water Supply Accounting VII. Water Demand Management The 2015 Water Resources Status Report includes water production and water consumption data for October 1, 2014 through September 30, 2015 and was prepared in accordance with the City’s General Plan, Water and Wastewater Management Element (WWME), Policy A5.3.1. Historically, data provided in the Water Resources Status Report reflected on the preceding calendar year. Starting with this report, the Report corresponds to the Water Year (October 1 through September 30), the 12-month period for which precipitation totals are measured. This change enables the City to better report on water supply availability issues. I. DROUGHT The statewide drought has continued and is now well into the fourth year. Governor Brown declared a drought emergency on January 17, 2014 and, as part of the response, directed the State Water Resources Control Board (State Water Board) to draft water conservation regulations to respond to the emergency. The State Water Board adopted regulations prohibiting water waste in July 2014, and issued directives to reduce water use statewide. In response to the continuing drought conditions, the State Water Board extended the 2014 emergency regulations and added new measures on March 17, 2015. On April 1, 2015, the Governor issued Executive Order B-29-15 mandating increased enforcement against water waste and declared a statewide water use reduction goal of 25 percent. This action was followed by the State Water Board adopting regulations that require specific water purveyors to reduce water use in a range of 8 to 36 percent compared to their 2013 water usage . The amount of the mandated reduction is dependent on the water purveyor’s per capita use in 2013. The City’s required reduction is 12 percent. The following is a summary of the City’s progress of reaching this goal. City of San Luis Obispo 2015 Water Resources Status Report 3 2015 Reduction from 2013 June 20% July 26% August 25% September 19% October 19% The community has done an outstanding job in reducing water consumption in response to the new regulations and the city is on target to meet the State’s requirement. LOCAL RESPONSE STRATEGY The impacts of the 1987-1991 drought enculturated a strong water conservation ethic in San Luis Obispo along with an urgency to develop new water supply sources. The current statewide drought brought about unprecedented regulatory action from the State of California which resulted in a mandatory average 12 percent reduction in water use from June 2015 to February 2016, when compared with 2013 water use numbers. To achieve this mandate, the City Council adopted a drought response strategy in June 2015. This strategy includes: 1. Adoption of a resolution declaring a drought emergency; 2. Adoption of a resolution to defer new landscape installation or the use of modified landscape plans during the drought emergency; 3. Introduction of an ordinance amending Chapter 13.07 of the City’s Municipal Code to include two-day-a-week and time-of-day restrictions for outdoor watering; 4. Approval of an incentive program for high efficiency toilets and washing machines; and 5. Adoption of a resolution establishing a permit fee for the use of the Cor poration Yard groundwater well. This strategy relies on active enforcement of water waste prohibitions, with a core focus on providing information and resources to the public Nacimiento Reservoir Dam, February 2015. Photo credit: County of San Luis Obispo. City of San Luis Obispo 2015 Water Resources Status Report 4 II. WATER SUPPLY Per WWME Policy A2.2.1, the city uses multiple water sources to meet its water supply needs. The city has four primary water supply sources including Whale Rock Reservoir, Salinas Reservoir, Nacimiento Reservoir, and recycled water (for landscape irrigation and construction water), with groundwater serving as a fifth supplemental source. The supply per source for Water Year 2015 (October 1, 2014 to September 30, 2015) is summarized as follows: 2015 City Water Supply by Source (Acre Feet) Salinas Whale Rock* Nacimiento Groundwater Recycled Total Water Demand 1,122 1,718 1,891 89 168 4,988 23% 34% 38% 2% 3% 100% Notes: All Values are rounded. *Water delivered to Cal Poly State University is excluded from the City’s water demand. SALINAS & WHALE ROCK RESERVOIRS Salinas and Whale Rock Reservoirs have served as the city’s primary water supplies for over 50 years. The City pays the County of San Luis Obispo Flood Control and Water Conservation District (County) to provide oversight, operations, and maintenance of the Salinas Dam and related water delivery facilities. The City of San Luis Obispo provides the oversight, operations, and maintenance of the Whale Rock Reservoir for the benefit of the Whale Rock Commission, a joint powers agency made up of Cal Poly State University, California Men’s Colony, and the City. The city draws water from these two reservoirs to maximize the long-term water supply available from these two sources. In addition, the city has in a coordinated manner adopted policies in the WWME to account for reductions in storage capacity at each lake resulting from siltation. NACIMIENTO WATER PROJECT Water deliveries from the Nacimiento Reservoir began on January 5, 2011. The City has a contractual right to 3,380 acre feet per year. The county operates and maintains the project that delivers water from Nacimiento Reservoir to participating agencies (currently the cities of Paso Robles and San Luis Obispo, Atascadero Mutual Water Company, Templeton Community Whale Rock Reservoir, February 2015. Photo credit: County of San Luis Obispo. City of San Luis Obispo 2015 Water Resources Status Report 5 Services District, and County Service Area 10A [Cayucos]). The Nacimiento Project Commission, which is made up of representatives from each of the four agencies’ governing boards and a County Representative (who is a member of the County Board of Supervisors which also sits as the Board of Directors for the Flood Control District), provides oversight to project operations, maintenance, and the project budget. The Nacimiento pipeline was shut down on June 2, 2014 for emergency repairs and was offline for the remainder of 2014 , with flow being reinstated in April of 2015. RECYCLED WATER Recycled water use for 2014 totaled 185 acre feet, up five percent from 177 acre feet in 2013. For the 2015 Water Year, the City delivered 168 acre feet of recycled water. GROUNDWATER The City stopped supplying groundwater to its drinking water system in April 2015. Due to new regulatory requirements, using the groundwater would require additional costly treatment at the wells before the water could be used. Groundwater wells remain in operable stand-by condition should use of groundwater be required in the future . Pe r WWME Policy A 3.2.3, the Cit y does not con sider groundwater a source of supply due to limitation s on its use. Cit y wells are summarized below: Well Type Use Location Pacific Beach #1 Potable Domestic Los Osos Valley Road near Pacific Beach School Corp Yard Well Non-potable Construction Water City Corporation Yard Prado Road Laguna Lake Golf Course Non-potable Irrigation Laguna Lake Golf Course on LOVR SLO City Farm Non-potable Irrigation SLO Community Farm off Highway 101 & LOVR Note: The City discontinued domestic groundwater use in 2015. City of San Luis Obispo 2015 Water Resources Status Report 6 43% 25% 21% 11% Single Family Residential Uses Multi-Family Residential Uses Non-Residential Uses Landscape Irrigation III. PROJECTED WATER SUPPLY The City uses a computer model to estimate its future reservoir storage in Salinas and Whale Rock Reservoirs. This is accomplished by applying historical drought, weather patterns, water use projections, reservoir data, and available water supplies from Nacimiento Reservoir, and recycled water. The model assumes implementation of Stage I conservation measures when supplies are projected to last three years. Stage II and III conservation measures are implemented when water supplies are estimated to last two years and one year, respectively. In December 2014 the model predicted water supplies would last six years. In early 2015, the model was updated to include the new worst case drought information (climatic data for 2012, 2013, and 2014). The model indicates the City has approximately a three year supply of water as of September 2015. IV. WATER DEMAND During Water Year 2015, 68 percent of water use in the City was for single and multi-family residential uses. Historical water use is summarized below, as well as corresponding population, per capita use rate, and precipitation. The 2015 per capita water use was 97.3 gallons per capita per day (gpcd). Based on WWME policies, the City uses the ten -year gpcd average to project water required to serve build-out population. The ten-year average water use is 114.4 gpcd. City of San Luis Obispo 2015 Water Resources Status Report 7 Population, Water Use & Rainfall Year Population Total Water Use (acre feet) Per Capita (gpcd) Rainfall1,2,3 (inches) 2006 44,559 5,999 120.2 17.2 2007 44,433 6,493 130.5 12.7 2008 44,579 6,359 127.3 18.1 2009 44,829 6,134 122.2 18.9 2010 44,948 5,489 109.0 36.0 2011 45,418 5,285 103.9 18.9 2012 45,308 5,541 109.2 21.5 2013 45,541 5,892 115.5 3.8 2014 45,473 5,524 108.5 14.2 2015 45,802 4,990 97.3 11.8 Ten-year per capita average: 114.4 Notes: 1. Rai nfa ll amou nts for 2005 –2012 cal endar year source: Cal Poly CIMIS W eather Statio n. 2. Rai nfa ll amou nt fo r calendar year 2013-2015: SLO Reservoir. 3. Rainfall for 2015 covers October 2014 through September 2015 V. WATER RESOURCE AVAILABILITY The following table summarizes the Water Resource Availability to serve the community water demand based on WWME Section 3. Water availability for 2015 is 10,005 acre feet. 2015 Water Resource Availability Water Resource Acre Feet Description Salinas & Whale Rock Reservoirs 6,940 Safe Annual Yield 1 Nacimiento Reservoir 3,380 Dependable Yield 2 Recycled Water 185 2014 Annual Usage 3 Siltation from 2010 to 2060 (500) WWME Policy A 4.2.2 4 10,005 2015 Annual Availability NOTES: 1. Safe Annual Yield determined from computer model, which accounts for siltation loss through 2010 (per WWME Policy A 4.2.1). 2. Dependable Yield is the contractual amount of water the City has rights to from Nacimiento Reservoir. 3. The quantity of recycled water included is the actual prior year’s recycled water usage (calendar year 2014) per WWME Policy A 7.2.2. 4. Reservoir siltation is a natural occurrence that reduces storage capacity over long periods, resulting in the reduction of safe annual yield. City of San Luis Obispo 2015 Water Resources Status Report 8 VI. WATER SUPPLY ACCOUNTING Per WWME Section 5, the City will account for water supplies necessary to meet three specific community needs: 1. Primary water supply 2. Reliability reserve 3. Secondary water supply The primary water supply is defined as the amount of water needed to serve the build-out population of the City as identified in the Land Use Element of the General Plan. Table 3 in the Land Use Element identifies an urban reserve capacity of 57,200 people. The quantity of water needed for the primary water supply is calculated using the ten -year average of actual per capita water use, shown in Table 2, and the population of 57,200 (2014 LUCE). Per WWME Policy A 5.2.2: Primary Water Supply: = Ten Year Average per Capita Water Use x City Build-out Population = 114.4 gal/cap-day x 57,200 x 365 day/year x Acre-Ft/325,853 gal = 7,330 Acre-Ft/year The reliability reserve provides a buffer for future unforeseen or unpredictable long -term impacts to the City’s available water supply. The quantity of water for the reliability reserve is established using 20 percent of the ten-year average of per capita water use and the existing City population (45,802, 2015 population). The reliability reserve concept is included in the City’s Charter (Section 909) which identifies that the water may not be used to serve future development, and is defined per WWME Policy A 5.2.3: Reliability Reserve: = Ten Year Average per Capita Water Use x 2014 City Population x 20% = 114.4 gal/cap-day x 45,802 cap x 365 day/year x Acre-Ft/325,853 gal x 20% = 1,174 Acre-Ft/year City of San Luis Obispo 2015 Water Resources Status Report 9 The secondary water supply is the amount of water remaining from the City’s available water resources above those needed to meet the primary water supply and reliability reserve. The secondary supply is identified to meet peak water demand periods or short -term loss of City water supply sources, per WWME Policy A 5.2.4: Secondary Water Supply: = Current Annual Availability – Primary Water Supply – Reliability Reserve = 10,005 Acre-Ft/year A – 7,484 acre-Ft/year – 1,190 Acre-Ft/year = 1,501 Acre-Ft/year A 2015 Annual Availability Water supply accounting is summarized as follows: 2015 Water Supply Accounting (acre feet) Total Primary Water Supply Reliability Reserve Secondary Water Supply 10,005 7,330 1,174 1,501 VII. WATER DEMAND MANAGEMENT The City’s water conservation program is an integral part of its overall water management strategy. In the late 1980’s, the City implemented effective water efficiency programs and policies that allowed for continued community growth and economic development during water-constrained periods. Through strong conservation efforts, the community has reduced its annual average per capita water use from over 180 gallons in 1987 to 97 for the 2015 Water Year. REGIONAL COOPERATION Beyond the involvement in the Nacimiento Water Project, the City is a participating member of the Water Resources Advisory Council and Regional Water Management Group, which promotes collaborative, integrated management of water resources within San Luis Obispo County and provides policy recommendations to the County Board of Supervisors. In addition, the City participates in the Paso Robles Groundwater Basin Advisory Committee and the regional water conservation group Partners in Water Conservation. 2015 Urban Water Management Plan Appendix III: Department of Water Resources Checklist 2015 Urban Water Management Plan APPENDIX III: Compliance Checklist The City completed the following checklist of specific UWMP requirements as requested by DWR. The Checklist includes each UWMP requirements by subject, applicable CWC section, and the page number where the required element is addressed in the Plan to assist in the DWR review of the City’s UWMP. CWC Section UWMP Requirement Subject Guidebook Location UWMP Location 10620(b) Every person that becomes an urban water supplier shall adopt an urban water management plan within one year after it has become an urban water supplier. Plan Preparation Section 2.1 Page 1-1 10620(d)(2) Coordinate the preparation of its plan with other appropriate agencies in the area, including other water suppliers that share a common source, water management agencies, and relevant public agencies, to the extent practicable. Plan Preparation Section 2.5.2 Pages 1-2 & 1-3 10642 Provide supporting documentation that the water supplier has encouraged active involvement of diverse social, cultural, and economic elements of the population within the service area prior to and during the preparation of the plan. Plan Preparation Section 2.5.2 Page 1-3 10631(a) Describe the water supplier service area. System Description Section 3.1 Page 2-1 10631(a) Describe the climate of the service area of the supplier. System Description Section 3.3 Page 2-1 10631(a) Provide population projections for 2020, 2025, 2030, and 2035. System Description Section 3.4 Pages 2-2 & 2-3. Table 2 10631(a) Describe other demographic factors affecting the supplier’s water management planning. System Description Section 3.4 Pages 2-1 & 2-2 10631(a) Indicate the current population of the service area. System Description and Baselines and Targets Sections 3.4 and 5.4 Page 2-2 Table 2 10631(e)(1) Quantify past, current, and projected water use, identifying the uses among water use sectors. System Water Use Section 4.2 Page 3-1 Table 4 10631(e)(3) (A) Report the distribution system water loss for the most recent 12-month period available. System Water Use Section 4.3 Table 4 & Page 3-2 10631.1(a) Include projected water use needed for lower income housing projected in the service area of the supplier. System Water Use Section 4.5 Pages 3-2 & 3-3. Table 6 10608.20(b) Retail suppliers shall adopt a 2020 water use target using one of four methods. Baselines and Targets Section 5.7 and App E Page 3-3 & Tables 7 & 11 10608.20(e) Retail suppliers shall provide baseline daily per capita water use, urban water use target, interim urban water use target, and compliance daily per capita water use, along with the bases for determining those estimates, including references to supporting data. Baselines and Targets Chapter 5 and App E Pages 3-4, 3-5, 3-6, & 3.7 Tables 8, 9, 10, & 11 10608.22 Retail suppliers’ per capita daily water use reduction shall be no less than 5 percent of base daily per capita water use of the 5 year baseline. This does not apply if the suppliers base GPCD is at or below 100. Baselines and Targets Section 5.7.2 Page 3-7 & Table 11 10608.24(a) Retail suppliers shall meet their interim target by December 31, 2015. Baselines and Targets Section 5.8 and App E Page 3-8 & Table 14 2015 Urban Water Management Plan CWC Section UWMP Requirement Subject Guidebook Location UWMP Location 10608.24(d) (2) If the retail supplier adjusts its compliance GPCD using weather normalization, economic adjustment, or extraordinary events, it shall provide the basis for, and data supporting the adjustment. Baselines and Targets Section 5.8.2 NA 10608.36 Wholesale suppliers shall include an assessment of present and proposed future measures, programs, and policies to help their retail water suppliers achieve targeted water use reductions. Baselines and Targets Section 5.1 NA 10608.40 Retail suppliers shall report on their progress in meeting their water use targets. The data shall be reported using a standardized form. Baselines and Targets Section 5.8 and App E Pages 3-8 & 3-9. Table 14 10631(b) Identify and quantify the existing and planned sources of water available for 2015, 2020, 2025, 2030, and 2035. System Supplies Chapter 6 Table 19 10631(b) Indicate whether groundwater is an existing or planned source of water available to the supplier. System Supplies Section 6.2 Pages 4.5 & 4.6 10631(b)(1) Indicate whether a groundwater management plan has been adopted by the water supplier or if there is any other specific authorization for groundwater management. Include a copy of the plan or authorization. System Supplies Section 6.2.2 Page 4-6 10631(b)(2) Describe the groundwater basin. System Supplies Section 6.2.1 Page 4-5 10631(b)(2) Indicate if the basin has been adjudicated and include a copy of the court order or decree and a description of the amount of water the supplier has the legal right to pump. System Supplies Section 6.2.2 Page 4-6 10631(b)(2) For unadjudicated basins, indicate whether or not the department has identified the basin as overdrafted, or projected to become overdrafted. Describe efforts by the supplier to eliminate the long-term overdraft condition. System Supplies Section 6.2.3 Page 4-6 and Page 6-2 10631(b)(3) Provide a detailed description and analysis of the location, amount, and sufficiency of groundwater pumped by the urban water supplier for the past five years System Supplies Section 6.2.4 Page 4-6, Table 17 10631(b)(4) Provide a detailed description and analysis of the amount and location of groundwater that is projected to be pumped. System Supplies Sections 6.2 and 6.9 Page 4-6 10631(d) Describe the opportunities for exchanges or transfers of water on a short-term or long-term basis. System Supplies Section 6.7 Page 4-7 to 4-8 10631(g) Describe the expected future water supply projects and programs that may be undertaken by the water supplier to address water supply reliability in average, single-dry, and multiple-dry years. System Supplies Section 6.8 Page 4-8 10631(h) Describe desalinated water project opportunities for long-term supply. System Supplies Section 6.6 Page 4-8 10631(j) Retail suppliers will include documentation that they have provided their wholesale supplier(s) – if any - with water use projections from that source. System Supplies Section 2.5.1 Appendix I 2015 Urban Water Management Plan CWC Section UWMP Requirement Subject Guidebook Location UWMP Location 10631(j) Wholesale suppliers will include documentation that they have provided their urban water suppliers with identification and quantification of the existing and planned sources of water available from the wholesale to the urban supplier during various water year types. System Supplies Section 2.5.1 NA 10633 For wastewater and recycled water, coordinate with local water, wastewater, groundwater, and planning agencies that operate within the supplier's service area. System Supplies (Recycled Water) Section 6.5.1 Wastewater treatment is also City of San Luis Obispo 10633(a) Describe the wastewater collection and treatment systems in the supplier's service area. Include quantification of the amount of wastewater collected and treated and the methods of wastewater disposal. System Supplies (Recycled Water) Section 6.5.2 Pages 5-1 & 5.2. Table 22 10633(b) Describe the quantity of treated wastewater that meets recycled water standards, is being discharged, and is otherwise available for use in a recycled water project. System Supplies (Recycled Water) Section 6.5.2.2 Page 5-2 10633(c) Describe the recycled water currently being used in the supplier's service area. System Supplies (Recycled Water) Section 6.5.3 and 6.5.4 Page 5-2 & Figure 5 10633(d) Describe and quantify the potential uses of recycled water and provide a determination of the technical and economic feasibility of those uses. System Supplies (Recycled Water) Section 6.5.4 Page 5-4 10633(e) Describe the projected use of recycled water within the supplier's service area at the end of 5, 10, 15, and 20 years, and a description of the actual use of recycled water in comparison to uses previously projected. System Supplies (Recycled Water) Section 6.5.4 Page 5-5 10633(f) Describe the actions which may be taken to encourage the use of recycled water and the projected results of these actions in terms of acre-feet of recycled water used per year. System Supplies (Recycled Water) Section 6.5.5 Page 5-5 to 5-6 10633(g) Provide a plan for optimizing the use of recycled water in the supplier's service area. System Supplies (Recycled Water) Section 6.5.5 Page 5-4 and 5-7 10620(f) Describe water management tools and options to maximize resources and minimize the need to import water from other regions. Water Supply Reliability Assessment Section 7.4 Page 6-1 and 6-2 10631(c)(1) Describe the reliability of the water supply and vulnerability to seasonal or climatic shortage. Water Supply Reliability Assessment Section 7.1 Page 6-3 10631(c)(1) Provide data for an average water year, a single dry water year, and multiple dry water years Water Supply Reliability Assessment Section 7.2 Page 6-3, Table 27 10631(c)(2) For any water source that may not be available at a consistent level of use, describe plans to supplement or replace that source. Water Supply Reliability Assessment Section 7.1 N/A as noted on Page 6-3 10634 Provide information on the quality of existing sources of water available to the supplier and the manner in which water quality affects water management strategies and supply reliability Water Supply Reliability Assessment Section 7.1 Page 6-3 10635(a) Assess the water supply reliability during normal, dry, and multiple dry water years by comparing the total water supply sources available to the water supplier with the total projected water use over the next 20 years. Water Supply Reliability Assessment Section 7.3 Page 6-4 and 6-5, Tables 28, 29 and 30 2015 Urban Water Management Plan CWC Section UWMP Requirement Subject Guidebook Location UWMP Location 10632(a) and 10632(a)(1) Provide an urban water shortage contingency analysis that specifies stages of action and an outline of specific water supply conditions at each stage. Water Shortage Contingency Planning Section 8.1 Page 8-4 to 8-10 10632(a)(2) Provide an estimate of the minimum water supply available during each of the next three water years based on the driest three-year historic sequence for the agency. Water Shortage Contingency Planning Section 8.9 Page 8-11 10632(a)(3) Identify actions to be undertaken by the urban water supplier in case of a catastrophic interruption of water supplies. Water Shortage Contingency Planning Section 8.8 Page 8-11 10632(a)(4) Identify mandatory prohibitions against specific water use practices during water shortages. Water Shortage Contingency Planning Section 8.2 Page 8-6, 8-7, 8-8, 8-9, 8-10 10632(a)(5) Specify consumption reduction methods in the most restrictive stages. Water Shortage Contingency Planning Section 8.4 Page 8-9, 8-10 10632(a)(6) Indicated penalties or charges for excessive use, where applicable. Water Shortage Contingency Planning Section 8.3 Page 8-9, 8-10 10632(a)(7) Provide an analysis of the impacts of each of the actions and conditions in the water shortage contingency analysis on the revenues and expenditures of the urban water supplier, and proposed measures to overcome those impacts. Water Shortage Contingency Planning Section 8.6 Page 8-10 10632(a)(8) Provide a draft water shortage contingency resolution or ordinance. Water Shortage Contingency Planning Section 8.7 Appendix VII 10632(a)(9) Indicate a mechanism for determining actual reductions in water use pursuant to the water shortage contingency analysis. Water Shortage Contingency Planning Section 8.5 Page 8-2 10631(f)(1) Retail suppliers shall provide a description of the nature and extent of each demand management measure implemented over the past five years. The description will address specific measures listed in code. Demand Management Measures Sections 9.2 and 9.3 Page 7-2 10631(f)(2) Wholesale suppliers shall describe specific demand management measures listed in code, their distribution system asset management program, and supplier assistance program. Demand Management Measures Sections 9.1 and 9.3 N/A 10631(i) CUWCC members may submit their 2013-2014 CUWCC BMP annual reports in lieu of, or in addition to, describing the DMM implementation in their UWMPs. This option is only allowable if the supplier has been found to be in full compliance with the CUWCC MOU. Demand Management Measures Section 9.5 Appendix VI 10608.26(a) Retail suppliers shall conduct a public hearing to discuss adoption, implementation, and economic impact of water use targets. Plan Adoption, Submittal, and Implementation Section 10.3 Appendix I 10621(b) Notify, at least 60 days prior to the public hearing, any city or county within which the supplier provides water that the urban water supplier will be reviewing the plan and considering amendments or changes to the plan. Plan Adoption, Submittal, and Implementation Section 10.2.1 Appendix I 2015 Urban Water Management Plan CWC Section UWMP Requirement Subject Guidebook Location UWMP Location 10621(d) Each urban water supplier shall update and submit its 2015 plan to the department by July 1, 2016. Plan Adoption, Submittal, and Implementation Sections 10.3.1 and 10.4 Available Following Adoption by City Council 10635(b) Provide supporting documentation that Water Shortage Contingency Plan has been, or will be, provided to any city or county within which it provides water, no later than 60 days after the submission of the plan to DWR. Plan Adoption, Submittal, and Implementation Section 10.4.4 Available Following Adoption by City Council 10642 Provide supporting documentation that the urban water supplier made the plan available for public inspection, published notice of the public hearing, and held a public hearing about the plan. Plan Adoption, Submittal, and Implementation Sections 10.2.2, 10.3, and 10.5 Appendix I 10642 The water supplier is to provide the time and place of the hearing to any city or county within which the supplier provides water. Plan Adoption, Submittal, and Implementation Sections 10.2.1 Appendix I 10642 Provide supporting documentation that the plan has been adopted as prepared or modified. Plan Adoption, Submittal, and Implementation Section 10.3.1 Available Following Adoption by City Council 10644(a) Provide supporting documentation that the urban water supplier has submitted this UWMP to the California State Library. Plan Adoption, Submittal, and Implementation Section 10.4.3 Available Following Adoption by City Council 10644(a)(1) Provide supporting documentation that the urban water supplier has submitted this UWMP to any city or county within which the supplier provides water no later than 30 days after adoption. Plan Adoption, Submittal, and Implementation Section 10.4.4 Available Following Adoption by City Council 10644(a)(2) The plan, or amendments to the plan, submitted to the department shall be submitted electronically. Plan Adoption, Submittal, and Implementation Sections 10.4.1 and 10.4.2 Available Following Adoption by City Council 10645 Provide supporting documentation that, not later than 30 days after filing a copy of its plan with the department, the supplier has or will make the plan available for public review during normal business hours. Plan Adoption, Submittal, and Implementation Section 10.5 Available Following Adoption by City Council 2015 Urban Water Management Plan Appendix IV: AWWA Water Loss Audit Water Audit Report for: Reporting Year: All volumes to be entered as: ACRE-FEET PER YEAR Master Meter and Supply Error Adjustments WATER SUPPLIED Pcnt:Value: Volume from own sources:3 2,044.410 acre-ft/yr acre-ft/yr Water imported:3 2,677.020 acre-ft/yr acre-ft/yr W ater exported:acre-ft/yr acre-ft/yr Enter negative % or value for under-registration WATER SUPPLIED:4,721.430 acre-ft/yr Enter positive % or value for over-registration . AUTHORIZED CONSUMPTION Billed metered:7 4,296.000 acre-ft/yr Billed unmetered:10 acre-ft/yr Unbilled metered:10 2.980 acre-ft/yr Pcnt:Value: Unbilled unmetered:5 59.018 acre-ft/yr 1.25%acre-ft/yr24061 AUTHORIZED CONSUMPTION:4,357.998 acre-ft/yr WATER LOSSES (Water Supplied - Authorized Consumption)363.432 acre-ft/yr Apparent Losses Pcnt:Value: Unauthorized consumption:4 11.804 acre-ft/yr 0.25%acre-ft/yr Customer metering inaccuracies:4 0.000 acre-ft/yr acre-ft/yr Systematic data handling errors:5 10.740 acre-ft/yr 0.25%acre-ft/yr Apparent Losses:22.544 acre-ft/yr Real Losses (Current Annual Real Losses or CARL) Real Losses = Water Losses - Apparent Losses:340.889 acre-ft/yr WATER LOSSES:363.432 acre-ft/yr NON-REVENUE WATER NON-REVENUE WATER:425.430 acre-ft/yr = Water Losses + Unbilled Metered + Unbilled Unmetered SYSTEM DATA Length of mains:8 185.0 miles Number of active AND inactive service connections:10 14,995 Service connection density:81 conn./mile main Yes Average length of customer service line:ft Average operating pressure:3 70.0 psi COST DATA Total annual cost of operating water system:10 $/Year Customer retail unit cost (applied to Apparent Losses):9 Variable production cost (applied to Real Losses):1 $/acre-ft WATER AUDIT DATA VALIDITY SCORE: PRIORITY AREAS FOR ATTENTION: 1: Water imported 2: Volume from own sources 3: Variable production cost (applied to Real Losses) Based on the information provided, audit accuracy can be improved by addressing the following components: $/100 cubic feet (ccf) <----------- Enter grading in column 'E' and 'J' ----------> Default option selected for unauthorized consumption - a grading of 5 is applied but not displayed *** YOUR SCORE IS: 53 out of 100 *** A weighted scale for the components of consumption and water loss is included in the calculation of the Water Audit Data Validity Score Default option selected for Systematic data handling errors - a grading of 5 is applied but not displayed Average length of customer service line has been set to zero and a data grading score of 10 has been applied Are customer meters typically located at the curbstop or property line? AWWA Free Water Audit Software: Reporting Worksheet Enter a positive value, otherwise a default percentage of 1.25% (of billed metered) is applied and a grading of 5 is applied but not displayed 2015 1/2015 - 12/2015 City of San Luis Obispo (4010009) ? ? ? ? ? ?Click to access definition ? ? ? ? ? ? Please enter data in the white cells below. Where available, metered values should be used; if metered values are unavailable please estimate a value. Indicate your confidence in the accuracy of the input data by grading each component (n/a or 1-10) using the drop-down list to the left of the input cell. Hover the mouse over the cell to obtain a description of the grades ? ? ? ? ? ? (length of service line, beyond the property boundary, that is the responsibility of the utility) Use buttons to select percentage of water supplied OR value ?Click here: for help using option buttons below ? ? ? ? + +Click to add a comment WAS v5.0 + + + + + + American Water Works Association. Copyright © 2014, All Rights Reserved. ? ? ? + + + + + + + + + + + + +Use Customer Retail Unit Cost to value real losses ? To select the correct data grading for each input, determine the highest grade where the utility meets or exceeds all criteria for that grade and all grades below it. AWWA Free Water Audit Software v5.0 Reporting W orksheet 1 Water Audit Report for:City of San Luis Obispo (4010009) Reporting Year: System Attributes: Apparent Losses:22.544 acre-ft/yr + Real Losses:340.889 acre-ft/yr = Water Losses:363.432 acre-ft/yr Unavoidable Annual Real Losses (UARL):254.84 acre-ft/yr Annual cost of Apparent Losses:$0 Annual cost of Real Losses:Valued at Variable Production Cost Performance Indicators: Non-revenue water as percent by volume of Water Supplied:9.0% Non-revenue water as percent by cost of operating system: Real Losses valued at Variable Production Cost Apparent Losses per service connection per day:1.34 gallons/connection/day Real Losses per service connection per day:20.30 gallons/connection/day Real Losses per length of main per day*:N/A Real Losses per service connection per day per psi pressure:0.29 gallons/connection/day/psi From Above, Real Losses = Current Annual Real Losses (CARL):340.89 acre-feet/year 1.34 * This performance indicator applies for systems with a low service connection density of less than 32 service connections/mile of pipeline Infrastructure Leakage Index (ILI) [CARL/UARL]: 2015 1/2015 - 12/2015 Return to Reporting Worksheet to change this assumpiton AWWA Free Water Audit Software: System Attributes and Performance Indicators *** YOUR WATER AUDIT DATA VALIDITY SCORE IS: 53 out of 100 *** ? ? American W ater Works Association. Copyright © 2014, All Rights Reserved. WAS v5.0 Financial: Operational Efficiency: AWWA Free W ater Audit Software v5.0 Performance Indicators 1 Water Audit Report for: Reporting Year:2015 1/2015 - 12/2015 Data Validity Score:53 Water Exported 0.000 Billed Metered Consumption (water exported is removed)Revenue Water 4,296.000 Own Sources Authorized Consumption 4,296.000 Billed Unmetered Consumption 4,296.000 0.000 4,357.998 Unbilled Metered Consumption 2.980 2,044.410 61.998 Unbilled Unmetered Consumption 59.018 Water Supplied Unauthorized Consumption 425.430 Apparent Losses 11.804 4,721.430 22.544 Customer Metering Inaccuracies 0.000 Systematic Data Handling Errors Water Losses 10.740 Water Imported 363.432 Leakage on Transmission and/or Distribution Mains Real Losses Not broken down 2,677.020 340.889 Leakage and Overflows at Utility's Storage Tanks Not broken down Leakage on Service ConnectionsNot broken down AWWA Free Water Audit Software: Water Balance Non-Revenue Water (NRW) Billed Authorized Consumption Unbilled Authorized Consumption (Adjusted for known errors) Billed Water Exported City of San Luis Obispo (4010009) WAS v5.0 American Water Works Association. AWWA Free W ater Audit Software v5.0 W ater Balance 1 2015 Urban Water Management Plan Appendix V: 2015 Annual Water Quality Report PWS ID#: XX Presented By PWS ID#: 4010009 Este informe contiene información muy importante sobre su agua potable. Tradúzcalo o hable con alguien que lo entienda bien. Meeting the Challenge Once again we are proud to present our annual drinking water report, covering all drinking water testing performed between January 1 and December 31, 2015. Over the years, we have dedicated ourselves to producing drinking water that meets all state and federal standards. We continually strive to adopt new methods for delivering the best quality drinking water to your homes and businesses. As new challenges to drinking water safety emerge, we remain vigilant in meeting the goals of source water protection, water conservation, and community education while continuing to serve the needs of all of our water users. Please remember that we are always available to assist you, should you ever have any questions or concerns about your water. Important Health Information Some people may be more vulnerable to contaminants in drinking water than the general population. Immunocompromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants may be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. The U.S. EPA/ CDC (Centers for Disease Control and Prevention) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline at (800) 426-4791 or http:// water.epa.gov/drink/hotline. Substances That Could Be in Water The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity. In order to ensure that tap water is safe to drink, the U.S. Environmental Protection Agency (U.S. EPA) and the State Water Resources Control Board (State Board) prescribe regulations that limit the amount of certain contaminants in water provided by public water systems. State Board regulations also establish limits for contaminants in bottled water that must provide the same protection for public health. Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. Contaminants that may be present in source water include: Microbial Contaminants, such as viruses and bacteria, that may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife; Inorganic Contaminants, such as salts and metals, that can be naturally occurring or can result from urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming; Pesticides and Herbicides, that may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses; Organic Chemical Contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and which can also come from gas stations, urban stormwater runoff, agricultural applications, and septic systems; Radioactive Contaminants, that can be naturally occurring or can be the result of oil and gas production and mining activities. More information about contaminants and potential health effects can be obtained by calling the U.S. EPA’s Safe Drinking Water Hotline at (800) 426-4791.Community Participation City Council meetings are held on the first and third Tuesdays of each month at 6:00 p.m. at City Hall, 990 Palm Street, San Luis Obispo, California. A public comment period is held at the beginning of each meeting. Questions? For more information about this report, or for any questions relating to your drinking water, please contact Dean Furukawa, Water Treatment Plant Supervisor, at (805) 781-7566 or dfurukawa@slocity.org. Source Water Assessment Assessments of the drinking water sources for the City of San Luis Obispo have been conducted. These sources include Salinas Reservoir, Whale Rock Reservoir, Nacimiento Lake, Pacific Beach Well, and Fire Station #4 Well. To request a summary of an assessment, contact Jeff Densmore, District Engineer, Santa Barbara District, at (805) 566-1326, or the City of San Luis Obispo at (805) 781-7215. A copy of the complete assessment is available from the SWRCB Division of Drinking Water, 1180 Eugenia Place, Suite 200, Carpinteria, California 93013; or the City of San Luis Obispo, 879 Morro Street, San Luis Obispo, California 93401. Where Does My Water Come From? The City of San Luis Obispo is fortunate to have several sources of water. The Salinas Reservoir (also known as Santa Margarita Lake, eight miles east of Santa Margarita), Whale Rock Reservoir (Cayucos), and Nacimiento Lake (16 miles northwest of Paso Robles) are our main supplies. The surface water from the three lakes is treated at the Stenner Creek Water Treatment Plant. In 2015, well water was used to meet a small percentage (1%) of the City’s demand for water. The active well was the Pacific Beach Well #1 (Los Osos Valley Road). During 2015, our treatment plant and well delivered 1.69 billion gallons of water to San Luis Obispo. Lead in Home Plumbing If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. We are responsible for providing high-quality drinking water, but cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. (If you do so, you may wish to collect the flushed water and reuse it for another beneficial purpose, such as watering plants.) If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at www.epa.gov/lead.Fluoridation Our water system treats your water by adding fluoride to the naturally occurring level to help prevent dental caries in consumers. State regulations require the fluoride levels in the treated water be maintained within a range of 0.6 - 1.2 ppm with an optimum dose of 0.7 ppm. Our monitoring showed that the fluoride levels in the treated water ranged from 0.1 to 0.8 with an average of 0.6 ppm. Information about fluoridation, oral health, and current issues is available from http://www. waterboards.ca.gov/drinking_ water/certlic/drinkingwater/ Fluoridation.shtml. Sampling Results During the past year, we have taken hundreds of water samples to determine the presence of any radioactive, biological, inorganic, volatile organic or synthetic organic contaminants. The table below shows only those contaminants that were detected in the water. The State requires us to monitor for certain substances less often that once per year because the concentrations of these substances do not change frequently. In these cases, the most recent sample data are included, along with the year in which the sample was taken. We participated in the 3rd stage of the EPA’s Unregulated Contaminant Monitoring Rule (UCMR3) program by performing additional tests on our drinking water. UCMR3 benefits the environment and public health by providing the EPA with data on the occurrence of contaminants suspected to be in drinking water, in order to determine if EPA needs to introduce new regulatory standards to improve drinking water quality. Contact us for more information on this program. REGULATED SUBSTANCES SUBSTANCE (UNIT OF MEASURE) YEAR SAMPLED MCL [MRDL] PHG (MCLG) [MRDLG] AMOUNT DETECTED RANGE LOW-HIGH VIOLATION TYPICAL SOURCE Aluminum (ppm)2015 1 0.6 0.068 ND–0.13 No Erosion of natural deposits; residue from some surface water treatment processes Barium (ppm)2015 1 2 0.043 ND–0.13 No Discharges of oil drilling wastes and from metal refineries; erosion of natural deposits Chlorine (ppm)2015 [4.0 (as Cl2)] [4 (as Cl2)] 0.81 0.1–1.4 No Drinking water disinfectant added for treatment Chromium (ppb)2015 50 (100)3.57 ND–14 No Discharge from steel and pulp mills and chrome plating; erosion of natural deposits Control of DBP precursors [TOC]1 (% removal) 2015 TT NA 23.5 11–31 No Various natural and man-made sources Fluoride2 (ppm)2015 2.0 1 0.6 0.1–0.8 No Erosion of natural deposits; water additive that promotes strong teeth; discharge from fertilizer and aluminum factories Gross Alpha Particle Activity (pCi/L)2011 15 (0)0.0145 ND–0.029 No Erosion of natural deposits Haloacetic Acids3 (ppb)2015 60 NA 20.8 8.0–23.0 No By-product of drinking water disinfection Hexavalent Chromium (ppb)2015 10 0.02 2.0 ND–12.0 No Discharge from electroplating factories, leather tanneries, wood preservation, chemical synthesis, refractory production, and textile manufacturing facilities; erosion of natural deposits Nitrate [as nitrate] (ppm)2015 45 45 4.87 0.5–9.1 No Runoff and leaching from fertilizer use; leaching from septic tanks and sewage; erosion of natural deposits TTHMs [Total Trihalomethanes]3 (ppb) 2015 80 NA 82.1 30.4–115.0 Yes By-product of drinking water disinfection Turbidity4 (NTU)2015 TT NA 0.12 0.03–0.12 No Soil runoff Turbidity (Lowest monthly percent of samples meeting limit) 2015 TT = 95% of samples < 0.3 NTU NA 100%NA No Soil runoff Tap water samples were collected for lead and copper analyses from sample sites throughout the community SUBSTANCE (UNIT OF MEASURE) YEAR SAMPLED AL PHG (MCLG) AMOUNT DETECTED (90TH%TILE) SITES ABOVE AL/TOTAL SITES VIOLATION TYPICAL SOURCE Copper (ppm)2013 1.3 0.3 0.114 0/30 No Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives Lead (ppb)2013 15 0.2 0.9 0/30 No Internal corrosion of household water plumbing systems; discharges from industrial manufacturers; erosion of natural deposits SECONDARY SUBSTANCES SUBSTANCE (UNIT OF MEASURE) YEAR SAMPLED SMCL PHG (MCLG) AMOUNT DETECTED RANGE LOW-HIGH VIOLATION TYPICAL SOURCE Aluminum (ppb)2015 200 NS 68 ND–130 No Erosion of natural deposits; residual from some surface water treatment processes Chloride (ppm)2015 500 NS 28.7 22–34 No Runoff/leaching from natural deposits; seawater influence Specific Conductance (micromhos)2015 1,600 NS 691 580–830 No Substances that form ions when in water; seawater influence Sulfate (ppm)2015 500 NS 58 30–84 No Runoff/leaching from natural deposits; industrial wastes Total Dissolved Solids (ppm)2015 1,000 NS 373 300–460 No Runoff/leaching from natural deposits UNREGULATED CONTAMINANT MONITORING RULE PART 3 (UCMR3) SUBSTANCE (UNIT OF MEASURE) YEAR SAMPLED AMOUNT DETECTED RANGE LOW-HIGH Chlorate (ppb)2015 140 88–240 Molybdenum (ppb)2015 3.33 ND–4.5 Strontium (ppb)2015 412 290–450 Vanadium (ppb)2015 2.0 ND–5.4 1 Total organic carbon (TOC) has no health effects. However, TOC provides a medium for the formation of disinfection by-products such as TTHMs and HAA5s. The City’s TOC reduction requirement was 15 - 25% based on a running annual average calculated quarterly. 2 The City currently adds fluoride to the treated water produced by the water treatment plant to achieve an optimum target residual of 0.7 ppm. Some limited areas in the City along Los Osos Valley Road received a blend of surface water and groundwater that may have a lower fluoride residual. 3 Regulatory compliance is determined based on the Locational Running Annual Average (LRAA). 4 Turbidity is a measure of the cloudiness of the water. We monitor it because it is a good indicator of the effectiveness of our filtration system. Definitions AL (Regulatory Action Level): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow. LRAA (Locational Running Annual Average): The average of sample analytical results for samples taken at a particular monitoring location during the previous four calendar quarters. Amount Detected values for TTHMs and HAAs are reported as LRAAs. MCL (Maximum Contaminant Level): The highest level of a contaminant that is allowed in drinking water. Primary MCLs are set as close to the PHGs (or MCLGs) as is economically and technologically feasible. Secondary MCLs (SMCLs) are set to protect the odor, taste and appearance of drinking water. MCLG (Maximum Contaminant Level Goal): The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs are set by the U.S. EPA. micromhos: A measure of electrical conductance. MRDL (Maximum Residual Disinfectant Level): The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants. MRDLG (Maximum Residual Disinfectant Level Goal): The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants. NA: Not applicable ND (Not detected): Indicates that the substance was not found by laboratory analysis. NS: No standard NTU (Nephelometric Turbidity Units): Measurement of the clarity, or turbidity, of water. Turbidity in excess of 5 NTU is just noticeable to the average person. pCi/L (picocuries per liter): A measure of radioactivity. PDWS (Primary Drinking Water Standard): MCLs and MRDLs for contaminants that affect health along with their monitoring and reporting requirements, and water treatment requirements. PHG (Public Health Goal): The level of a contaminant in drinking water below which there is no known or expected risk to health. PHGs are set by the California EPA. ppb (parts per billion): One part substance per billion parts water (or micrograms per liter). ppm (parts per million): One part substance per million parts water (or milligrams per liter). TT (Treatment Technique): A required process intended to reduce the level of a contaminant in drinking water. VIOLATION OF A MCL, MRDL, AL, TT, OR MONITORING AND REPORTING REQUIREMENT VIOLATION EXPLANATION DURATION ACTIONS TAKEN TO CORRECT THE VIOLATION HEALTH EFFECTS TTHM Primary Standard In the 2nd quarter of 2015, the Stage 2 Disinfectant By-product regulatory sampling site near Johnson Avenue and Southwood Drive exceeded the locational running annual average (LRAA) for Total Trihalomethanes (TTHM). That LRAA was 82.1 parts per billion (ppb) which exceeded the standard or maximum contaminant level (MCL) of 80 ppb. TTHM form when chlorine used for disinfection reacts with naturally occurring organic material in surface and ground waters. One quarter In response, City staff evaluated each surface water source, optimized the water treatment process to lower the potential of TTHM formation, made operational changes in the water distribution system to reduce the water age, and increased the monitoring of chlorine residual throughout the system. These adjustments have resulted in lower TTHM levels and all subsequent LRAAs to be less than the MCL. Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience liver, kidney, or central nervous system problems, and may have an increased risk of getting cancer. Summary Information for Violation of a MCL, MRDL, AL, TT, or Monitoring and Reporting Requirement 2015 Urban Water Management Plan Appendix VI: CUWCC Best Management Practices 1. Conservation Coordinator provided with necessary resources to implement BMPs? Name: Title: Email: Utilities Services Interim Manager Marcus Henderson mhenderson@slocity.org 2. Water Waste Prevention Documents City of San Luis Obispo87 WW Document Name WWP File Name WW Prevention URL WW Prevention Ordinance Terms Description Option A Describe the ordinances or terms of service adopted by your agency to meet the water waste prevention requirements of this BMP. http://www.codepublishing. com/ca/sanluisobispo/ http://www.codepublishing.co m/ca/sanluisobispo/, http://www.slocity.org/utilities/ download/engstandland. City Ordinance, Chapter 13.07 Water Conservation City Ordinance, Chapter 13.06 Mandatory Plumbing Retrofit Standards Engineering Standards, Se Option B Describe any water waste prevention ordinances or requirements adopted by your local jurisdiction or regulatory agencies within your service area. Option C Describe any documentation of support for legislation or regulations that prohibit water waste. Option D Describe your agency efforts to cooperate with other entities in the adoption or enforcement of local requirements consistent with this BMP. Option E Describe your agency support positions with respect to adoption of legislation or regulations that are consistent with this BMP. Option F Describe your agency efforts to support local ordinances that establish permits requirements for water efficient design in new development. At Least As effective As No BMP 1.1 Operation Practices Foundational Best Managemant Practices for Urban Water Efficiency CUWCC BMP Retail Coverage Report 2014 ON TRACK Exemption Comments: No BMP 1.1 Operation Practices Foundational Best Managemant Practices for Urban Water Efficiency CUWCC BMP Retail Coverage Report 2014 ON TRACK 87 City of San Luis Obispo Completed Standard Water Audit Using AWWA Software?Yes AWWA File provided to CUWCC?Yes Copy_of_AWWA-water_audit_13-14.xls AWWA Water Audit Validity Score? 50 Complete Training in AWWA Audit Method Yes Complete Training in Component Analysis Process? Yes Component Analysis? Yes Repaired all leaks and breaks to the extent cost effective? Yes Locate and Repar unreported leaks to the extent cost effective? Yes Maintain a record keeping system for the repair of reported leaks, including time of report, leak location, type of leaking pipe segment or fitting, and leak running time from report to repair.Yes CUWCC BMP Coverage Report 2014 Foundational Best Management Practices For Urban Water Efficiency BMP 1.2 Water Loss Control ON TRACK Provided 7 Types of Water Loss Control Info Leaks Repairs Value Real Losses Value Apparent Losses Miles Surveyed Press Reduction Cost Of Interventions Water Saved (AF) 58 0 True Comments: At Least As effective As No NoExemption 87 City of San Luis Obispo Numbered Unmetered Accounts No Metered Accounts billed by volume of use Yes Number of CII Accounts with Mixed Use Meters 1013 Conducted a feasibility study to assess merits of a program to provide incentives to switch mixed-use accounts to dedicated landscape meters? Yes Feasibility Study provided to CUWCC?Yes Completed a written plan, policy or program to test, repair and replace meters Yes Comments: Date: Uploaded file name: 5/1/2011 BMP 1 3 Feastibilty Study.xls At Least As effective As No NoExemption BMP 1.3 Metering With Commodity CUWCC BMP Coverage Report 2014 Foundational Best Management Practices For Urban Water Efficiency ON TRACK Use Annual Revenue As ReportedImplementation Option: Implementation (Water Rate Structure) 87 City of San Luis Obispo YesAgency Provide Sewer Service: Customer Class Water Rate Type Conserving Rate? (V) Total Revenue Comodity Charges (M) Total Revenue Fixed Carges 1 0 8 6 Single-Family Increasing Block Yes 7694943 617065.5 Multi-Family Increasing Block Yes 2852104 89913.78 Commercial Increasing Block Yes 3339986 118873.3 Dedicated Irrigation Increasing Block Yes 2848943 39355.58 16735976 865208.16 95Calculate: V / (V + M)% Customer Class Rate Type Conserving Rate? Single-Family Uniform Yes Multi-Family Uniform Yes Commercial Uniform Yes NA Canadian Water and Wastewater Association Use 3 years average instead of most recent year Upload file: Comments: At Least As effective As Yes NA NoExemption BMP 1.4 Retail Conservation Pricing CUWCC BMP Coverage Report 2014 Foundational Best Management Practices For Urban Water Efficiency On Track 87 City of San Luis Obispo Retail The list of wholesale agencies performing public outreach which can be counted to help the agency comply with the BMP Description of all other Public Outreach programs p Public Outreach Program List Number 7 8 2 8 3 Newsletter articles on conservation 88000 Total 88000 Number Media Contacts Number Newspaper contacts 4 Television contacts 4 Total 8 Annual Budget Category Annual Budget Amount 40600 Total Amount:40600 Does your agency perform Public Outreach programs?Yes Did at least one contact take place during each quater of the reporting year?No Did at least one contact take place during each quater of the reporting year?Yes Did at least one website update take place during each quater of the reporting year?Yes Public Information Program Annual Budget Comments: The name of agency, contact name and email address if not CUWCC Group 1 members 0NoExemption At Least As effective As No CUWCC BMP Coverage Report BMP 2.1 Public Outreach 2014 Foundational Best Management Practices For Urban Water Efficiency ON TRACK 87 City of San Luis Obispo Retail Materials meet state education framework requirements? Consultant guarantees curriculm meets state standards Materials distributed to K-6? In class presentations cover the state education framework; teachers guide with materials supporting the presentation provided a consultant Materials distributed to 7-12 students? (Info Only) Annual budget for school education program:10000.00 Description of all other water supplier education programs water supply, water conservation, water recycling NoDoes your agency implement School Education programs? The list of wholesale agencies performing public outreach which can be counted to help the agency comply with the BMP Yes Yes Yes In class presentations cover the state education framework; teachers guide with materials supporting the presentation provided a consultant Comments: 0NoExemption At Least As effective As No BMP 2.2 School Education Programs CUWCC BMP Coverage Report 2014 Foundational Best Management Practices For Urban Water Efficiency ON TRACK GPCD in 2014 GPCD Target for 2018: 104.81 Biennial GPCD Compliance Table Year 2010 2012 2014 2016 2018 Report 1 2 3 4 5 % Base 96.4% 92.8% 89.2% 85.6% 82.0% GPCD 119.40 114.90 110.40 106.00 101.50 % Base 100% 96.4% 92.8% 89.2% 82.0% GPCD 123.80 119.40 114.90 110.40 101.50 Target Highest Acceptable Bound 87 City of San Luis Obispo 101.50 Baseline GPCD:123.81 ON TRACK CUWCC BMP Coverage Report 2014 2015 Urban Water Management Plan Appendix VII: Draft Water Rationing Ordinance Draft ORDINANCE NO. (2016 Series) AN ORDINANCE OF THE COUNCIL OF THE CITY OF SAN LUIS OBISPO AMENDING CHAPTER 13.07 OF THE SAN LUIS OBISPO MUNICIPAL CODE REGARDING WATER CONSERVATION WHEREAS, the Urban Water Management Act (“UWMA”), codified at California Water Code sections 10610 et seq., requires certain water purveyors, including the City, to develop and approve an Urban Water Management Plan (the “Plan”); WHEREAS, the Plan is required to include a water shortage contingency analysis and a draft ordinance or resolution to implement any water shortage contingency plan. The City last updated its Plan in 2010 and is required to be updated every five years; WHEREAS, Chapter 13.07 of the City of San Luis Obispo’s Municipal Code sets forth the City’s water conservation requirements; WHEREAS, in 2015, the City adopted Ordinance No. 1619 amending Chapter 13.07 in order to comply with the Governor’s Executive Order regarding the drought and the State Water Resources Control Board’s emergency regulations, title 23 California Code of Regulations, sections 863, 864 and 865; WHEREAS, the City’s most recent UWMA has been updated to include five levels of contingency planning with each level being based on the amount of water supply available to the City; WHEREAS, it is the intent and desire of the City Council to amend the City’s water conservation regulations in order to be consistent with the recent updated planning efforts as set forth in the UWMA. NOW THEREFORE, BE IT ORDAINED by the Council of the City of San Luis Obispo as follows: SECTION 1. Environmental Determination. [To be determined. The City will prepare appropriate CEQA documentation when the Draft Ordinance is proposed for adoption]. SECTION 2. Action. Chapter 13.07 of the San Luis Obispo Municipal Code, entitled “WATER CONSERVATION,” is hereby amended in its entirety to read as follows: 13.07.010. Policy declaration and purpose. It is declared that the city shall, for the general public health, safety and welfare, and to assure an adequate water supply to the community, require a mandatory water conservation plan to be authorized during a period of necessity. The purpose of the water conservation plan is to identify the water demand reductions that will achieve measurable water savings during a water shortage response stage to prolong the city’s available water supply. Ordinance No. __________________ (2016 Series) Page 2 13.07.020 Application. The provisions of this ordinance codified in this chapter shall apply to all customers, users and property served by the city. It shall also apply to all properties and facilities owned, maintained, operated, or under the jurisdiction of the city. 13.07.030 Definitions. The following words and phrases used in this chapter, unless a different meaning is clearly required by the context, shall have the following meanings: “Gallons per capita per day,” or abbreviated as “gpcd,” means the total quantity of water consumed by all customer classes in the City divided by the City’s population. “Gallons per person per day,” or abbreviated as “gppd,” means the daily water consumption per resident in gallons per day. “Heritage tree” means any tree existing within the city limits, which has been so designated by resolution of the city council. Heritage trees shall be trees with notable historic interest or trees of an unusual species or size. “Measurable rainfall” means any amount of rainfall that generates run-off or puddles is considered measurable. “Spray irrigation” means the method of applying water through an irrigation system where the water is sprayed through the air. “Water projection model” means the model used by the City to project the water supply available in its reservoirs to serve the community. 13.07.040 Prohibited uses applicable to all customers. The following uses of water are prohibited for all city water customers. A. Water runoff prohibited. No person shall cause any water delivered by the city water system to flow away from property owned, occupied or controlled by such person in any gutter. Ditch or in any other manner over the surface of the ground, so as to constitute water waste runoff. “Water waste runoff” means water flowing away from property and which is caused by excessive application(s) of water beyond reasonable or practical flow rates, water volumes or duration of application. Ordinance No. __________________ (2016 Series) Page 3 B. No person shall cause or allow any water received by such person from the city water system to be wasted due to substandard, leaky or faulty water fixtures or water-using or distributing devices. The city Utilities Director shall have the power to notify owner or owners of property in writing of leaks in the water line on their private property and require repair of such leaks within three days after such notification. Upon failure to comply, the city Utilities Department may turn off the water on the property until the leak is repaired. Service will be restored after the property owner corrects the leak. Reconnection fees will be charged as set forth in Section 4.20.080 of this code. C. No person shall use water from fire hydrants for any purpose other than to fight fires or for other activities where such use is immediately necessary to maintain the health, safety and welfare of the residents of San Luis Obispo. The city’s Utilities Director may except persons from this provision when the use of such water is for incidental governmental use. D. Restaurants, cafés, delis or other public places where food is sold, served or offered for sale may not serve drinking water to any customer unless expressly requested by the customer. E. Potable city water shall not be used for construction activities, such as grading and dust control, and shall not be used to wash down sidewalks, driveways, or parking areas. The city’s Utilities Director may except persons from this provision when the use of such water is for incidental governmental use. F. No person shall make, cause, use or permit the watering or irrigation of lawn, turf or other landscaping after forty eight hours of measurable rainfall. 13.07.050 Emergency determination – Plan implementation. When deemed necessary in the judgment of the city council to conserve water during critical water shortage periods, the city council may declare an emergency water condition to exist and may implement the city’s water conservation plan. Said declaration shall be made in the form of a city council resolution stating the water conservation stage level as described in this chapter to be implemented and the reason for implementation. 13.07.060 Water shortage response stages. No customer of the city shall make, cause, use or permit the use of water from the city for residential, commercial, industrial, agricultural, governmental, or any other purpose in a manner contrary to any provision of the ordinance codified in this chapter or in an amount in excess of that use permitted by the water shortage response stage in effect pursuant to action taken by the city council in accordance with the provisions of the ordinance codified in this chapter. Ordinance No. __________________ (2016 Series) Page 4 A. Monitor stage. It is the purpose of a “Monitor” stage to maintain water consumption to no more than 117 gpcd. A Monitor stage may be declared at any time the city’s water projection model indicates that the city has five or more years of available water supply or based on any other factors which the city council finds to be justification for the declaration of such stage (i.e. differing water levels in the city’s reservoirs, etc.). During a declared Monitor stage, the city shall maintain conservation messaging at levels to achieve voluntary conservation of at least 117 gpcd. B. Watch stage. It is the purpose of a “Watch” stage to reduce water consumption to no more than 107 gpcd. A Watch stage may be declared at any time the city’s water projection model indicates that the city has less than five years of available water supply or based on any other factors which the city council finds to be justification for the declaration of such stage. During a declared Watch stage, the city shall increase conservation messaging in order to achieve voluntary conservation of at least 100 gpcd. In addition, during a declared Watch stage, the city council may, by resolution, do any of the following: 1. Prohibit the use of a hose to wash an automobile, except where the hose is fitted with a shut off nozzle or device attached to it that causes it to cease dispensing water immediately when not in use; 2. Prohibit the watering or irrigation of lawn, landscape, or other turf in a wasteful manner; and 3. Impose any other conservation measures deemed necessary in order to reduce water consumption to 107 gpcd. C. Warning stage. It is the purpose of a “Warning” stage to reduce water consumption to no more than 95 gpcd. A Warning stage may be declared at any time the city’s water projection model indicates that the city has less than four years of available water supply or based on any other factors which the city council finds to be justification for the declaration of such stage. During a declared Warning stage, the city may implement any regulation set forth in the Watch stage. In addition, during a declared Warning stage, the city council may, by resolution, prohibit the following uses of water: 1. Using potable water to clean, fill or maintain levels in decorative fountains, unless such water is part of a recycling system; 2. Watering or irrigated a lawn, landscape or other turf between the hours of ten a.m. and four p.m. 3. Watering or irrigating a lawn, landscape or other turf in accordance with the following schedule: Ordinance No. __________________ (2016 Series) Page 5 Three-Day a Week Schedule Even numbered addresses Sundays, Tuesdays and Thursdays Odd numbered addresses Mondays, Wednesdays and Fridays Two-Day a Week Schedule Even numbered addresses Tuesdays and Fridays Odd numbered addresses Mondays and Thursdays 4. Impose any other conservation measures deemed necessary in order to reduce water consumption to 95 gpcd. D. Severe stage. It is the purpose of a “Severe” stage to reduce water consumption to no more than 90 gpcd. A Severe stage may be declared at any time the city’s water projection model indicates that the city has less than three years of available water supply or based on any other factors which the city council finds to be justification for the declaration of such stage. During a declared Severe stage, the city may implement any regulation set forth in the Warning stage. In addition, during a declared Severe stage, the city council may, by resolution, do any of the following: 1. Prohibit the use of spray irrigation for the watering of lawn, landscape or turf. 2. Implement a water allotment program. In the event the City Council implements a water allotment program pursuant to this subdivision, no customer shall make, cause, use or permit the use of water in excess of allocations determined as follows: i. Single Family and Multi-family Residential – Each customer shall receive a monthly allocation of 64 gppd for each single family residence or multi-family dwelling unit. The 64 gppd allotment equals three residents. Customers may request an increase in the allotment in the amount 21 1/3rd gppd for each additional permanent resident. Each customer requesting an additional allotment shall submit a permanent resident certification form provided by the city. ii. Commercial – Each commercial customer shall receive a monthly allocation using a percent reduction methodology established by resolution of the city council based on the average of the previous three years of water use. An optional baseline standard allocation will also be determined by resolution of the city council which will be available to commercial customers. Each commercial customer’s actual allocation will be the lesser of either formula. Ordinance No. __________________ (2016 Series) Page 6 iii. Institutional – Each institutional customer shall receive a monthly allocation using a percent reduction methodology established by resolution of the city council based on the average of the previous three years of water use. iv. Landscape Meters – Each customer with a landscape meter will receive an allocation using a percent reduction methodology established by resolution of the city council based on the average of the previous three years of water use. 3. Require all new water utility connections to offset that development’s proposed water use on a one to one basis. The city’s Utilities Department shall develop and approve regulations to implement this offset program. 4. Impose any other conservation measures deemed necessary in order to reduce water consumption to 90 gpcd. E. Extreme stage. It is the purpose of an “Extreme” stage to reduce water consumption to no more than 85 gpcd. An Extreme stage may be declared at any time the City’s water projection model indicates that the city has less than two years of available water supply or based on any other factors which the City Council finds to be justification for the declaration of such stage. During a declared Extreme stage, the city may implement any regulation set forth in the Severe stage. In addition, during a declared Extreme stage, the City Council may, by resolution, do any the following: 1. Reduce the water allotments set forth in Section 13.07.060.D.2 as follows: i. Single Family and Multi-family Residential. Each customer shall receive a monthly allocation of 56 gppd for each single family residence or multi-family dwelling unit. The 56 gppd allotment equals three residents. Customers may request an increase in the allotment in the amount 18 2/3rds gppd for each additional permanent resident. Each customer requesting an additional allotment shall submit a permanent resident certification form provided by the city. ii. Each commercial and institutional customer, or a customer with a landscape meter, shall reduce their allocation in an amount established by resolution of the city council. 2. Require all new water utility connections to offset that development’s proposed water use on a two to one basis. 3. Prohibit the irrigation or watering of any lawn, landscape or turf, except for heritage trees. Ordinance No. __________________ (2016 Series) Page 7 4. Impose any other conservation measures deemed necessary in order to reduce water consumption to 85 gpcd. F. Critical stage. It is the purpose of a “Critical” stage to reduce water consumption to no more than 75 gpcd. A Critical stage may be declared at any time the City’s water projection model indicates that the city has less than one year of available water supply or based on any other factors which the City Council justifies the declaration of such stage. During a declared Critical stage, the city may implement any regulation set forth in the Extreme stage. In addition, during a declared Critical stage, the City Council may do the following: 1. Reduce the water allotments set forth in Sections 13.07.060.D.2 or 13.07.060.E.1 as follows: i. Single Family and Multi-family Residential. Each customer shall receive a monthly allocation of 48 gppd for each single family residence or multi-family dwelling unit. The 48 gppd allotment equals three residents. Customers may request an increase in the allotment in the amount 16 gppd for each additional permanent resident. Each customer requesting an additional allotment shall submit a permanent resident certification form provided by the city. ii. Each commercial and institutional customer, or a customer with a landscape meter, shall reduce their allocation in an amount established by resolution of the city council. 2. Impose any other conservation measures deemed necessary in order to reduce water consumption to 75 gpcd. 13.07.060 Integration with other rules. Whenever a water shortage response stage has been declared by the City Council pursuant to this Chapter, all other city rules, regulations, restrictions, definitions, enforcement procedures, violation provisions and appeal procedures which are in force shall remain in force, except where they are in conflict with the provisions of this chapter, in which event the provisions established by this chapter shall prevail and govern. 13.07.070 Exceptions. The water use prohibitions set forth in this section 13.07.030 shall not apply to the use of water necessary for public health, safety or for essential governmental services such as fire, police, public works or similar services. 13.07.080 Moratorium – Extreme or Critical stages. Upon the declaration of an Extreme stage or Critical stage, the City Council may prohibit new potable water service, except under the following circumstances: A. A valid, unexpired building permit has been issued for the project; or Ordinance No. __________________ (2016 Series) Page 8 B. The project is necessary to protect the health, safety and welfare of the community. This section shall not be construed to preclude the resetting or turn-on of meters to provide a continuation of water service or to restore service that has been interrupted for up to a period of one year. 13.07.090 Failure to comply - Violations. It is unlawful for any customer to fail to comply with this Chapter. A. Customers exceeding their assigned maximum water use allocation as set forth in subsections D.2, E.1 and F.1 of Section 13.07.060 shall be subject to the following actions and civil penalties: a. The first violation of the maximum water use allotment shall be a warning letter. b. The second violation of the maximum water use allotment within a one year period shall be subject to a fifty percent (50%) surcharge levied on all usage above the customer’s monthly allotment. c. The third violation of the maximum water use allotment within a one year period shall be subject to a one hundred percent (100%) surcharge levied on all usage above the customer’s monthly allotment. d. The fourth violation or any more violations of the maximum water use allotment within a one year period shall be subject to a two hundred percent (200%) surcharge levied on all usage above the customer’s monthly allotment, discontinuation of service, installation of flow restrictors, or any other remedy or penalty allowed by law. B. Any violation of the provisions of this chapter by any person is a misdemeanor and is punishable as provided in Chapter 1.12. C. Any violation of the provisions of this chapter by any person is also subject to administrative fines as provided in Chapter 1.24, which may be appealed pursuant to the procedures in Chapter 1.24. D. In addition to other remedies provided by this chapter or by other law, any violation of this chapter may be remedied by a civil action brought by the city attorney, including but not limited to administrative or judicial nuisance abatement proceedings, civil or criminal code enforcement proceedings, and suits for injunctive relief. The remedies provided by this chapter are cumulative and in addition to any other remedies available at law or in equity. Ordinance No. __________________ (2016 Series) Page 9 SECTION 2. Severability. If any subdivision, paragraph, sentence, clause, or phrase of this ordinance is, for any reason, held to be invalid or unenforceable by a court of competent jurisdiction, such invalidity or unenforceability shall not affect the validity or enforcement of the remaining portions of this ordinance, or any other provisions of the City’s rules and regulations. It is the City’s express intent that each remaining portion would have been adopted irrespective of the fact that any one or more subdivisions, paragraphs, sentences, clauses, or phrases be declared invalid or unenforceable. SECTION 3. A summary of this ordinance, approved by the City Attorney, together with the names of the Council members voting for and against it, shall be published at least five days prior to its final passage, in the Tribune, a newspaper published and circulated in this City. Pursuant to Water Code section 376(a) this ordinance will go into effect immediately after its final passage. Within 10 days after its final adoption, a summary of this ordinance shall be published pursuant to Government 6061 and in accordance with Water Code section 376(b). INTRODUCED on the _________ day of _____________________________2016 AND FINALLY ADOPTED by the Council of the City of San Luis Obispo on the ________day of ________________________2016, on the following roll call vote: AYES: NOES: ABSENT: ____________________________________ Mayor Jan Marx ATTEST: ____________________________________ Lee Price, City Clerk APPROVED AS TO FORM: ____________________________________ J. Christine Dietrick, City Attorney