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BMP 1 <br /> <br />WATER SURVEY PROGRAMS FOR SINGLE-FAMILY RESIDENTIAL <br />AND MULTI-FAMILY RESIDENTIAL CUSTOMERS <br /> <br />Criteria to Determine BMP Implementation Status <br /> <br />a) <br /> <br />Agency has developed and implemented a strategy targeting and marketing water use <br />surveys to single-family residential and multi-family residential customers by the end <br />of the first reporting period following the date implementation was to commence. <br /> <br />b) Agency has directly contacted not less than 20% of single-family residential accounts <br /> and 20% of multi-family residential units during period being reported. <br /> <br />c) <br /> <br />Agency is on schedule to complete surveys for 15% of single-family residential <br />accounts and 15% of multi-family units within 10 years of the date implementation <br />was to con'anence. Agencies will receive credit against the coverage requirement for <br />previously completed residential water use surveys according to the following <br />schedule:' <br /> <br />% Credit <br /> <br />Before 1990 0.0% <br />1990 12.5% <br />1991 25.0% <br />1992 37.5% <br />1993 50.0% <br />1994 62.5% <br />1995 75.0% <br />1996 87.5% <br />1997 100.0% <br /> <br />d) Agencies will be considered on track if the pement of single-family accounts and the <br /> percent of multi-family accounts receiving water use surveys equals or exceeds the <br /> following: 1.5% by end of first reporting period following date implementation to <br /> commence: 3.6% by end of second reporting period: 6.3% by end of third reporting <br /> period; 9.6% by end of fourth reporting period: and 13.5% by end of fifth reporting <br /> period. <br /> <br />· In its study "What is the Reliable Yield from Residential Home Water Survey Programs: The Experience of <br /> LADWP" (AWWA Conf. Proceedings. 1995). A & N Technical Services. Inc., found that the average level of <br /> savings from home water surveys decreased over time. reaching about 50°/, of initial yield by the fourth year <br /> following the survey, on average. The above decay schedule used for crediting past surveys utilizes these <br /> findings to recognize and account for the limited persistence of water savings over time from home water use <br /> <br />-3- <br /> <br /> <br />