Ready or Not Conservation Is Here & You Will Have to Implement It

Transcription

1 Ready or Not Conservation Is Here & You Will Have to Implement It Gerry Nakano

2 Presentation Outline Why Conserve Water? Benefits Interface with 2010 UWMP Update and SB 7 Legislation Examples/Case Studies Closing Thoughts

3 Presentation Outline Why Conserve Water? Benefits Interface with 2010 UWMP Update and SB 7 Legislation Examples/Case Studies Closing Thoughts

4 Why Conserve Water? It s the Right Thing to Do Sustainability/green movement Reduced water demand = Reserves potable supplies for highest and best uses = Reduces energy consumption = Reduces carbon footprint = Compliance with AB 32 (reduction in greenhouse gases) SB 7 (20x2020 Plan) will make you Requires 10% demand reduction by 2015 Requires 20% demand reduction by 2020

5 What Are the Benefits of Conservation? Saves Water Saves Energy & Reduces Carbon Footprint Eligibility for Grants & Loans with SB 7 Compliance Saves $$$

6 How Does Water Conservation Save You $$$? Reduces your potable water supply needs Allows down-sizing of required water system infrastructure CIPs Reduces SW treatment capacity and/or # of wells Reduced exterior water use (particularly during high demand periods) reduces the max day and peak hour peaking factors allows downsizing of transmission mains, pump stations, storage tanks, emergency generators, etc. A smaller, more-efficient system saves power and energy consumption reduces carbon footprint

7 Presentation Outline Why Conserve Water? Benefits Interface with 2010 UWMP Update and SB 7 Legislation Examples/Case Studies Closing Thoughts

8 Conservation s Role in UWMP Urban Water Management Plan Updates: Mandated by the CA Water Code Water suppliers serving more than 3,000 afa or 3,000 connections must update their UWMP every 5 years Discussion & comparison of supplies (including supply reliability) compared to demands Significant focus on Best Management Practices, BMPs (conservation activities) Also known as Demand Management Measures, DMMs Legislation/Water Code requires 2010 UWMPs by Dec 31, 2010 DWR says there will be a 6-month 6 extension as a result of SB 7 until July 1, 2011

9 SB 7 Legislation (aka 20 x 2020) (passed November 10, 2009) % reduction in baseline demand 20% reduction in baseline demand Qualifies your Agency for CA grants and loans Four Available Compliance Options to demonstrate reduced gpcds from baseline

10 GPCD Reduction Options Option 1: 20% reduction from historical baseline gpcd Option 2: Use of established performance standards for specific indoor, landscape, commercial, industrial, and institutional uses Option 3: 95% of the gpcd goal established for your specific hydrologic regions Option 4: Methodology to be developed by DWR by Dec 31, 2010 Regardless of the method used, the water use reduction shall be no less than 5% of the baseline gpcd water use determined by a 5-year 5 average ending between 2007 and 2010

11 What Method Should You Use? ALL THREE to be sure you ve picked the most appropriate (advantageous) one for your agency General guidelines for method selection: Use Method 1 if your. Method 2 if you. Method 3 if you. gpcd is high compared to the hydrologic region baseline 2008 RW use is at least 10% of your total water use and has lowered your gpcd in the last 15 years have lots of CII water use can accurately quantify and classify your landscaped areas Have been conserving water and your current gpcd is low compared to the hydrologic region baseline

12 Targets by Hydrologic Region Region 1 Santa Rosa Region 2 EBMUD Pleasanton DSRSD Milpitas Coastside Napa Pittsburg Santa Clara Region 5 Sacramento Woodland Region 6 Stockton Tracy SEWD Calaveras Co WD North Coast 2 SF Bay 3 Central Coast 4 South Coast 5 Sacto River 6 San Joaquin 7 Tulare Lake 8 N Lahontan 9 S Lahontan 10 Colorado River gpcd Baseline 2015 Interim Target 2020 Final Target 95% of 2020 Final Target Statewide 2020 Target (154 gpcd)

13 Presentation Outline Why Conserve Water? Benefits Interface with 2010 UWMP Update and SB 7 Legislation Examples/Case Studies Closing Thoughts

14 Case Study 1: City of Santa Rosa City has implemented numerous water conservation measures over the last several years Separate irrigation meters Recycled water use Already reduced their per capita water use Demand has already been hardened Method 3???

15 Santa Rosa 20x2020 Options

16 Case Study 2: Dublin San Ramon Services District Implemented numerous water conservation measures over the last several years Uses recycled water for landscape irrigation Located within SF Bay Hydrologic Region (HR2); however, climate is more similar to San Joaquin Region (HR6) than it is to the rest of San Francisco Bay Region (HR2) Method 1 or 3???

17 DSRSD 20x2020 Options

18 Case Study 3: City of Tracy Implemented numerous water conservation measures over the last several years Approved a growth management ordinance in 2000 to limit residential growth City service area is currently predominantly residential but GP includes significant future commercial and industrial development which will change the service area characteristics City is located within San Joaquin Region (HR6) Method 1, 2 or 3????

19 City of Tracy 20x2020 Options

20 City of Tracy Development Shift & Impact to Overall gpcd Population Total Population Potable Water Demand, af/yr Total Potable Water Demand, af/yr Overall Total Potable Per Capita Water Water Demand, Demand, af/yr gpcd Overall Per Capita Water Demand, gpcd Residential Residential Overall Per Capita Per Per Capita Capita Water Water Water Demand, Demand, Demand, gpcd gpcd gpcd Residential Per Capita Water Demand, 2020 gpcd Per Capita Water Use Target, gpcd Now 81,000 Now 19,176 81,000 af/yr 19,176 af/yr 19, gpcd af/yr 211 gpcd 211 gpcd gpcd gpcd 158 gpcd 180 gpcd Buildout of General Plan ( 2040) Buildout of General 135,000 Plan ( 2040) 40, ,000 af/yr 40, gpcd af/yr 264 gpcd 156 gpcd 156 gpcd 180 gpcd Required Adjustment of Residential gpcd to meet Overall gpcd Target 135,000 27,200 af/yr 180 gpcd 71 gpcd Residential 2020 Per Capita Water Water Demand, Use Target, gpcd % Residential of total demand Water Demand, % Residential of total demand Water Demand, % of total demand Industrial Water Demand, Industrial % of total Water demand Demand, % of of total total demand demand 180 gpcd 75% 75% 75% 4% 4% 4% 180 gpcd 59% 59% 23% 23% 180 gpcd

21 SB 7 Concerns Criteria for determining reductions is gpcd Biggest variable is number of people per unit, or total population in service area 4 options to determine gpcd targets, but high variability in individual agency service area characteristics. High daily influx of commuters or tourists (non residents) High commercial or industrial uses Jail/Inmate facilities Doesn t fully recognize previous demand hardening Doesn t acc t for future land use changes and shifts in customer make up (i.e., reduced residential growth vs. industrial/commercial development) Additional 20% reduction in water use may be difficult for many

22 Conservation s Role in an Integrated Water Supply Plan (City of Fresno example)

23 Presentation Outline Why Conserve Water? Benefits Interface with 2010 UWMP Update and SB 7 Legislation Examples/Case Studies Closing Thoughts

24 Closing Thoughts Conservation provides you w/ a big bang for your buck.. Focus conservation efforts on exterior water use savings (exterior water use accounts for 50-60% of one s water use) Use of alternative non-potable supplies Landscape Ordinances Landscape Ordinances can be created to reduce water use, but still provide attractive landscaping. But beyond some point, very aggressive ordinances will start to impact the look and feel of a community As RW or GW are used to meet exterior, non-potable demands, be cautious of increased salt buildup in the underlying GW basin, due to the higher TDS of the source water With conservation comes demand hardening decreases an agency s ability and flexibility to further reduce demands in a drought or other emergency condition Conservation = Water use efficiency..but beyond some point this definition is no longer valid..when we dictate how much water an individual can use, irrespective of agency service area characteristics or water rights

25 Discussion / Questions

26 Required Data: Collection and Incorporation of 2005/06 to 2009/10 Data Water Service Area Data Service area (acres) Future demand and Number of metered/unmetered connections Service area population supply projections Low-income housing units should be made through Water Demand Data 2035 (25 yr projection) Annual water demand by land use type Historical Projected through 2035 to accommodate upcoming WSAs Per capita water use Historical Projected through 2035 (demonstrate compliance with potential 20x2020 legislation) DMMs (same as BMPs, all just conservation) Water Supply Data Historical and Projected Availability and Reliability of Supplies through 2035 Groundwater Surface Water Recycled Water Wholesale Supplies Other Water Supplies Updated or new water supply agreements and/or contracts

27 Key UWMP Deliverables Administrative Draft UWMP For client review and comment Draft UWMP For public review and comment (min. 14 day review period) Press Release for Noticing of Public Comment Period and Public Hearing PowerPoint Presentation to Board of Directors/City Council Describes need for and highlights of 2010 UWMP Typically presented at same meeting as public hearing Final UWMP For adoption by Board of Directors/City Council For submittal to DWR, California State Library, and County DWR UWMP Review Checklist For submittal to DWR along with Final UWMP to facilitate DWR s review of the UWMP DWR then reviews submitted UWMP for completeness and issues a compliance letter, or request for additional information/analysis

28 Important 2010 UWMP Due Dates 2010 UWMPs must be completed and adopted by December 31, 2010 Remember to allow enough time for: Preparation of Administrative Draft UWMP Client review and comment of Administrative Draft UWMP (usually 2 to 4 weeks minimum; depends on client) Incorporation of comments on Admin Draft UWMP and preparation of Draft UWMP for public and other agency review Public/Agency review/comment period and scheduling/noticing of public hearing (public review period must be at least 14 days) Completion of Final UWMP Board/Council adoption of Final UWMP (typically occurs at the next scheduled meeting following the public hearing assuming that no major comments are received) Submittal of adopted Final UWMP to DWR, State Library and County Don t forget holidays in November and December which can impact schedules for public hearings and Board/City Council meetings

29 2010 UWMP Update Timeline Prepare & Submit UWMP Proposal Negotiate Scope of Work and Budget Contract Review and Approval Notice to Proceed (no later than May 1st) Prepare Admin Draft UWMP (2-3 months) Client Review & Comment of Admin Draft UWMP (2-4 weeks) Distribute Draft UWMP and Public Noticing (early Oct) Public Hearing & Presentation to Council/Board (1 st meeting in Nov) UWMP Adoption by Council/Board (1 st meeting in Dec) December 31, 2010 Deadline for Submittal to DWR DWR to Define New UWMP Requirements and Publish Guidebook for Preparation of 2010 UWMPs by late 2009 or early 2010 Approximately an 8-month 8 process from NTP to UWMP Adoption Prepare Draft UWMP (1 month) Public Review Period (2 weeks minimum) Prepare Final UWMP (2 weeks) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec IMPORTANT: Confirm Nov & Dec Council/Board meeting dates when developing schedule