Beyond the Fence: Dispersed, Mobile, and Embodied Borders

10631 (f) Provide a description of the supplier’s water demand management measures. This description shall include all of the following:

(1) A description of each water demand management measure that is currently being implemented, or scheduled for implementation, including the steps necessary to implement any proposed measures, including, but not limited to, all of the following:

(A) Water survey programs for single-family residential and multifamily residential customers; (B) Residential plumbing retrofit; (C) System water audits, leak detection, and repair; (D) Metering with commodity rates for all new connections and retrofit of existing connections; (E) Large landscape conservation programs and incentives; (F) High-efficiency washing machine rebate programs; (G) Public information programs; (H) School education programs; (I) Conservation programs for commercial, industrial, and institutional accounts; (J) Wholesale agency programs; (K) Conservation pricing; (L) Water conservation coordinator; (M) Water waste prohibition;

(N) Residential ultra-low-flush (ULFT) toilet replacement programs.

(2) A schedule of implementation for all water demand management measures proposed or described in the plan.

(3) A description of the methods, if any, that the supplier will use to evaluate the effectiveness of water demand management measures implemented or described under the plan.

(4) An estimate, if available, of existing conservation savings on water use within the supplier's service area, and the effect of the savings on the supplier's ability to further reduce demand.

(g) An evaluation of each water demand management measure listed in paragraph (1) of subdivision (f) that is not currently being implemented or scheduled for implementation. In the course of the evaluation, first consideration shall be given to water demand management measures, or combination of measures, that offer lower incremental costs than expanded or additional water supplies. This evaluation shall do all of the following:

(1) Take into account economic and noneconomic factors, including environmental, social, health, customer impact, and technological factors.

(2) Include a cost-benefit analysis, identifying total benefits and total costs.

(3) Include a description of funding available to implement any planned water supply project that would provide water at a higher unit cost.

This section presents the City’s past, current, and future water conservation effort in compliance with the section 10631 of the UWMP Act. The 2010 UWMP Guidebook states that wholesale and

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retail urban water suppliers have different requirements for Demand Management Measures (DMM) implementation:

 Wholesale urban water suppliers need to address DMM 3, 4, 10, 11, 12

 Retail urban water suppliers need to address all DMMs, except DMM 10.

The City operates mainly as a retail urban water supplier, with a very little wholesale capacity (less than 0.6% if its annual water deliveries in 2010). The City is committed to implementing economically feasible programs that promote efficient water use and continues to implement demand management measures to the extent practicable. Section 10631 (f) of the Act requires that “all” DMMs are to be discussed and a discussion of each DMM is presented in this section.

The 14 DMMs are listed in Table 28 below:

Table 28: UWMP Demand Management Measures (DMM)

DMM

No. DMM Name

Implementation

Status Comments 1 Water survey programs for single-family

residential and multifamily residential customers

Yes Fully implemented and ongoing

2 Residential plumbing and retrofit Yes Over 1,000 kits distributed

3 System water audits, leak detection, and repair Yes Fully implemented 4 Metering with commodity rates for all new

connections and retrofit of existing connections

Yes Fully implemented 5 Large landscape conservation programs and

incentives

Yes No specific program by COS; However COS performs services that fall under this DMM

6 High-efficiency washing machine rebate programs

Yes 311 rebates distributed 7 Public information programs Yes Participating through own

programs and SAWS 8 School education programs Yes Participating through

SAWS 9 Conservation programs for commercial,

industrial, and institutional accounts

Yes 269 toilet rebates distributed

10 Wholesale agency programs Yes Participates through SAWS

11 Conservation pricing Yes Fully implemented

12 Water Conservation Coordinator Yes Fully implemented and ongoing

13 Water waste prohibition Yes Through Stockton

Municipal Code 14 Residential ultra-low-flush toilet replacement

program

Yes 137 toilet rebates distributed

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COSMUD became a signatory to the CUWCC in 2006. However, due to limited staff resources and the CUWCC’s late release of its new reporting database, COSMUD has been unable to complete the CUWCC’s on-line BMP reporting and for purposes of this UWMP is evaluating the 14 DMM’s listed above, which mirror the CUWCC’s BMP’s. COSMUD administers the program to the greatest benefit of the resources available to promote water conservation. In this section, each DMM includes the following:

A. Description of the DMM as implemented by COSMUD, B. Schedule of Implementation,

C. Methods to Evaluate Effectiveness, and D. Water Savings.

If the DMM is currently not being implemented, a cost effectiveness evaluation is provided and if it is cost effective to implement, a plan for implementation is outlined.

6.1 DMM 1: Water Survey Programs for Single-Family Residential and Multifamily Residential Customers

A. Implementation

Until May 2010, the City offered complimentary water use surveys for single and multi-family residential customers. Surveys were conducted by City staff certified as AWWA Water Use Efficiency Practitioners, covering indoor and outdoor water uses.

Due to limited staff resources, the City is now developing a self-performed water use survey modeled after the City of Santa Rosa.

Surveys consist of water use evaluation for appliances, such as dishwashers, washing machines, toilets, and faucets. Landscape and irrigation systems are evaluated as a part of the outdoor water use survey and the customer’s water meter is observed to ensure no leaks are occurring. Following completion of the survey, customers are provided a low-flow water use efficiency kit that includes low-flow shower head(s), faucet aerators, toilet flapper(s), a metal garden hose nozzle, and a brochure containing water conservation facts and tips.

B. Implementation Schedule

The City first implemented water surveys for single and multi-family residential customers in May 2009. This program is still being implemented and will continue to be implemented for at least the next 5 years. In 2009, 148 water surveys were performed and 127 water surveys were performed in 2010.

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C. Methods to Evaluate Effectiveness

Effectiveness for this DMM is quantifiable by the number of water surveys conducted. It should be noted that implementation of this DMM can also increase higher participation of DMMs 2, 6, 13, and 14.

Dependent upon available resources, the City may conduct a survey for participating customers on resulting awareness of water conservation and report the findings from the survey results with the next UWMP.

D. Water Savings Assumptions

The City currently has no means to quantify the water conservation savings from this DMM.

6.2 DMM 2: Residential Plumbing Retrofit

A. Implementation

The City offers and promotes low-flow water use efficiency kits through distribution at community events, after completion of water surveys, via the City website, through 866-STOKWTR, as well as advertising through utility bill inserts. The low-flow water use efficiency kit includes the following items: (2) 1.5 gpm low-flow shower head(s), a 1.5 gpm kitchen aerator, (2) 1.0 gpm bathroom aerators, toilet flapper(s), and a metal garden hose nozzle.

B. Implementation Schedule

The City has been distributing low-flow water use efficiency kits, in various forms, for a number of years back to 1990. However, distribution and tracking of the kits described above commenced in 2009 and continues. The City will continue to offer low-flow water use efficiency kits during the reporting period.

C. Methods to Evaluate Effectiveness

The City is tracking the number of retrofit kits distributed during the reporting period. The number of kits distributed during 2009 and 2010 is presented in Table 29.

Table 29: Number of Water Conservation Kits Distributed

Year Number of Low-Flow

Water Use Efficiency Kits

2009 467 2010 595

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D. Water Savings Assumptions

The City will continue to track number of kits offered and compare the total water usage for customers before and after kits are received. The City will report the comparison results with the next adoption of UWMP.

6.3 DMM 3: System Water Audits, Leak Detection, and Repair

A. Implementation

The City of Stockton has a continuous distribution system water audit program in place.

Ongoing analysis of unaccounted for water is one of the most effective means to achieve conservation by reducing leaks from the system. The City maintains an average of 5.3%

water loss from 2000 to 2010.

The City currently documents unmetered consumption in its Monthly Operations and Maintenance Report. All water meter leaks, service line, main break and manifold leaks are reported to the City by customers calling in or by a system generated work order. All leaks/breaks are documented in the City’s Computerized Maintenance Management System (CMMS). Information documented includes: date and time of reported leak, name of person responding to the call, type of leak, work done, customer side or city leak, and time to complete. Also documented is any communication with the customer or if a note was left to describe what was done and if any follow up is needed. All meter leaks are repaired the same day they are reported. All emergency breaks are also repaired the same day they are reported. Non-emergency service line and main breaks are usually held until a 48 hour USA is completed. Numbers from main and service line breaks are obtained by taking the line size, duration of the leak and volume of water leaking to estimate total water loss. Meter leak water loss numbers are estimated based on the volume of water found and duration of the leak.

Once a year, the City flushes the system through fire hydrants. The time spent flushing is documented in the CMMS. Hard copies of each hydrant flushed and how long it was flushed are kept as records. Water loss numbers are calculated by volume of water being flushed and time flushed multiplied by the number of hydrants flushed. City fire flow tests, commercial and residential construction usage and equipment testing are sources of water loss that are estimated based on the number of tests performed and number of new construction sites. Street sweeping water usage is documented on hard copies and calculated by size of tank, number of street sweepers and load counts.

In 2009, the City started using the AWWA Water Audit Software.

B. Implementation Schedule

This DMM is currently being implemented and will continue to be implemented as part of COSMUD’s ongoing operations and maintenance program.

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C. Methods to Evaluate Effectiveness

The City keeps records of the number and type of leaks reported monthly. The continuous review of the system allows the City to maintain unaccounted for water losses at an average of 5.3%.

D. Water Savings Assumptions

The total amount of water conserved over the five-year period by implementing this DMM is directly related to the percentage of unaccounted for water loss leaving the system. The City is committed to maintaining an average of 8% or less unaccounted for water during the reporting period.

6.4 DMM 4: Metering with Commodity Rates for All New Connections and Retrofit of Existing Connections

A. Implementation

The entire City of Stockton service area is fully metered and all connections are billed based on the volume of water used. The City became fully metered in 1954. In addition, customers are classified by meter type including single-family residential, multi-family residential, commercial, institutional, industrial and irrigation accounts.

B. Implementation Schedule This DMM is fully implemented.

6.5 DMM 5: Large Landscape Conservation Programs and Incentives

A. Implementation

The City currently does not currently have a Large Landscape Conservation Program.

However, effective January 1, 2010, the City began implementing the State’s Model Water Efficient Landscape Ordinance (MWELO) and is currently working to develop its own similar ordinance as part of the City’s Climate Action Plan work. Upon request, COSMUD will meet with Homeowners Associations who are large landscape users and evaluate their water use and provide recommendations for improvements.

In addition, in 2009 the COSMUD invested $92,560 to finalize the conversion of 12 of the newest City parks to computerized (SMART) irrigation control to achieve an approximate energy and water savings of 25 percent.

In 2010, the City launched a web site offering water wise landscaping resources, tips and virtual tours and photo galleries of local low-water use gardens. This information can be found at: http://www.stockton.watersavingplants.com. Examples of print materials used in public information materials are included in Appendix J.

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B. Implementation Schedule:

The City is currently working to identify its largest landscape/irrigation customers in an effort to launch a pilot program whereby water budgets will be established and monthly water use reports will be generated and distributed to customers to evaluate their water use and monetary savings.

The City park retrofit project was recently completed in 2010.

C. Methods to evaluate effectiveness:

The City will develop water use reports for large landscape/irrigation customers within 18 months of the UWMP adoption. The City will track report results and provide follow-up when necessary to evaluate the effectiveness of this DMM.

Data from the City park retrofit project is currently begin gathered to compare water use prior to and after the SMART controller retrofit.

D. Water Savings Assumptions

Water savings for this DMM are currently not quantifiable.

6.6 DMM 6: High-Efficiency Washing Machine Rebate Programs

A. Implementation

The City offers a rebate up to $150 per high-efficiency washing machine through the CUWCC’s SMART Rebate Program. To date, the City has invested approximately

$144,000 for the combined rebate program of high efficiency clothes washers and toilets and associated administrative costs (DMM14). The City’s web page for Municipal Utilities Water Conservation advertises the available rebates as does the CUWCC website.

Rebates are processed as received and as funding allows. The City has issued 311 rebates to date.

B. Implementation Schedule

This program was started in 2007 and is currently in place. The Program has not placed limitations on the quantity of rebates offered each year. The City will continue to issue rebates until the program funding is expended.

C. Methods to Evaluate Effectiveness

The City will continue to track the number of rebates during reporting period. The total number of rebates used will be the method to evaluate the effectiveness of this DMM.

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D. Water Savings Assumptions

Gross water savings (gallons) are calculated using the CUWCC’s formula for Gross Water Savings for high efficiency washing machine rebates. Each installation is assumed to save 0.314 AF. Since a total of 311 rebates have been issued, it can be assumed that a total of 97.6 AF is being saved as a result of this program.

6.7 DMM 7: Public Information Programs

A. Implementation

The City of Stockton provides water conservation information as part of MUD’s outreach program. Current budget for the City’s public information programs is $232,000. The public information program includes print and web-based publications, monthly bill inserts, and public outreach events.

The City includes water conservation tips and information in the City's monthly utility bill newsletter, Stockton Water News, which is mailed to all City of Stockton water customers.

Water Conservation is featured in the May issue of Stockton Water News as a part of Water Awareness Month. City staff also provides an annual update on the City’s water supply to the City’s Water Advisory Group, Council Water Committee and City Council. This report provides information regarding anticipated water supplies and provides an overview of the City’s water use and conservation programs.

The City is also a USEPA WaterSense Partner and is able to utilize available promotional materials and actively promotes EPA’s Fix a Leak Week every year.

Water conservation outreach literature is also distributed at community events such as Family Day in the Park, Black Family Day, Cinco de Mayo, State of the City and the annual Earth Day Festival. Water conservation literature is also distributed throughout City departments and to various community centers and libraries. The public can access water conservation information on the Municipal Utilities Department section of the City's web page at:

http://www.stocktongov.com/government/departments/municipalUtilities/utilWaterCon.html In 2010, the City launched a web site offering water wise landscaping resources, tips and virtual tours and photo galleries of local low-water use gardens. This information can be found at: http://www.stockton.watersavingplants.com. Examples of print materials used in public information materials are included in Appendix J.

B. Implementation Schedule

This DMM is currently in place. The City will continue to implement this DMM during the reporting period.

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C. Methods to Evaluate Effectiveness

The City provides residents with an 866-STOKWTR number where they can call and report water wasters as well as request information.

The City is currently restructuring its website and is planning to add a “How Are We Doing”

section to the City’s water conservation web page to evaluate the effectiveness of its public outreach efforts.

D. Water Savings Assumptions

The City currently has no method to quantify water conservation savings from this DMM.

6.8 DMM 8: School Education Programs

A. Implementation

The City provides water conservation education as part of the community and school outreach program through the Stockton Area Water Suppliers (SAWS), a consortium of water agencies including the COSMUD, Cal Water, SEWD and San Joaquin County. SAWS water conservation materials are included with teacher packets for classroom presentations and are discussed during classroom programs.

The City participates with SAWS to develop and implement a water education program for public and private schools within its service area. SAWS is an association of water providers dedicated to communication and mutual assistance regarding issues affecting water supply, distribution, and conservation in the COSMA. The SAWS group believes that providing water education in elementary and secondary schools is highly effective in reaching the public at large because young children are apt to share the lessons they learn in class with their parents, siblings, and extended families.

Educational materials, pamphlets, and guidance to classroom activities are available to schools and the public to highlight the value of water and ways to conserve. SAWS’s Water Conservation Program reaches approximately 28,000 K-6 grade students annually and has an outreach budget of $157,000. The program provides outreach in various formats, including: a large assembly program, in-class presentations, after-school programs, at festivals and community events, and various workshops. Examples of written materials used in public education programs are included in Appendix K.

B. Implementation Schedule

This DMM is currently in place. The City will continue to provide water conservation materials as part of its community and school outreach programs, as well as continue to work cooperatively with SAWS to develop and distribute water conservation information to K-6 grade students in public and private schools.

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C. Methods to Evaluate Effectiveness

The City will work cooperatively with SAWS to develop teacher and student surveys to

The City will work cooperatively with SAWS to develop teacher and student surveys to

In document 110 Pablo Gómez Muñoz (página 87-94)