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1. WATER SURVEY PROGRAMS FOR SINGLE-FAMILY RESIDENTIAL AND MULTI-FAMILY RESIDENTIAL CUSTOMERS

A. Implementation
Implementation shall consist of at least the following actions:

1) Develop and implement a strategy targeting and marketing water use surveys to single-family residential and multi-family residential customers.

2) Directly contact via letter or telephone not less than 20% of single-family residential customers and 20% of multi-family residential customers each reporting period.

3) Surveys shall include indoor and outdoor components, and at minimum shall have the following elements:

Indoor

a) Check for leaks, including toilets, faucets, and meter check

b) Check showerhead flow rates, aerator flow rates, and offer to replace or recommend replacement, as necessary

c) Check toilet flow rates and offer to install or recommend installation of displacement device or direct customer to ULFT replacement program, as necessary; replace leaking toilet flapper, as necessary

Outdoor

d) Check irrigation system and timers

e) Review or develop customer irrigation schedule

Recommended but not required

f) Measure currently landscaped area

g) Measure total irrigable area

4) Provide customer with evaluation results and water saving recommendations; leave information packet with customer.

5) Track surveys offered, surveys completed, survey results, and survey costs.

B. Implementation Schedule

1) Agencies signing the MOU prior to December 31, 1997, implementation shall commence no later than July 1, 1998.

2) Agencies signing the MOU or becoming subject to the MOU after December 31, 1997, implementation shall commence no later than July 1 of the year following the year the agency signed or became subject to the MOU.

3) Agencies shall develop and implement a strategy targeting and marketing water use surveys to single-family residential and multi-family residential customers by the end of the first reporting period following the date implementation was to commence.

4) The coverage requirement for this BMP, as specified in Section C of this Exhibit, shall be realized within 10 years of the date implementation was to commence.

C. Coverage Requirements

1) Not less than 15% of single-family residential accounts to receive water use surveys within 10 years of the date implementation was to commence. For the purposes of calculating coverage, 15% of single-family residential accounts means the number of accounts equal to 15% of single-family accounts in 1997 or the year the agency signed the MOU, whichever is later.

2) Not less than 15% of multi-family residential units to receive water use surveys within 10 years of the date implementation was to commence. For the purposes of calculating coverage, 15% of multi-family residential units means the number of units equal to 15% of multi-family units in 1997 or the year the agency signed the MOU, whichever is later.

D. Requirements for Documenting BMP Implementation

1) Number of single-family residential accounts in service area.

2) Number of multi-family residential accounts in service area.

3) Number of single-family residential surveys offered during reporting period.

4) Number of single-family residential surveys completed during reporting period.

5) Number of multi-family residential surveys offered during reporting period.

6) Number of multi-family residential surveys completed during reporting period.

E. Criteria to Determine BMP Implementation Status

1) Agency has developed and implemented a strategy targeting and marketing water use surveys to single-family residential and multi-family residential customers by the end of the first reporting period following the date implementation was to commence.

2) Agency has directly contacted not less than 20% of single-family residential accounts and 20% of multi-family residential units during period being reported.

3) Agency is on schedule to complete surveys for 15% of single-family residential accounts and 15% of multi-family units within 10 years of the date implementation was to commence. Agencies will receive credit against the coverage requirement for previously completed residential water use surveys according to the following schedule*:

 % Credit
Before 19900.0%
199012.5%
199125.0%
199237.5%
199350.0%
199462.5%
199575.0%
199687.5%
1997100.0%

4) Agencies will be considered on track if the percent of single-family accounts and the percent of multi-family accounts receiving water use surveys equals or exceeds the following: 1.5% by end of first reporting period following date implementation to commence; 3.6% by end of second reporting period; 6.3% by end of third reporting period; 9.6% by end of fourth reporting period; and 13.5% by end of fifth reporting period.

F. Water Savings Assumptions

 Pre-1980
Construction
Post-1980
Construction
Low-flow showerhead retrofit7.2 gcd2.9 gcd
Toilet retrofit (five year life)1.3 gcd0.0 gcd
Leak repair0.5 gcd0.5 gcd
Landscape survey (outdoor use reduction)10%10%




*In its study “What is the Reliable Yield from Residential Home Water Survey Programs: The Experience of LADWP” (AWWA Conf. Proceedings, 1995), A & N Technical Services, Inc., found that the average level of savings from home water surveys decreased over time, reaching about 50% of initial yield by the fourth year following the survey, on average. The above decay schedule used for crediting past surveys utilizes these findings to recognize and account for the limited persistence of water savings over time from home water use surveys



 

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