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7 <br /> building permit trends in the watershed for 1988 and 1989 <br /> were evaluated (see Attachment 4) . <br /> In 1988, a total of 155 permits of all types were issued for <br /> building purposes in the watershed. In 1989, the number of <br /> permits declined to 105, a decrease of 32% . Of all permits, <br /> approximately 35% were issued for mobile homes during the <br /> two-year period. A further check indicated that approximately <br /> 40% of all permits for mobile homes were for replacement <br /> units. <br /> Single-Family Residential Construction <br /> For 1988, 50 permits were issued for new single-family <br /> residential construction in the watershed. In 1989, the <br /> number of single-family permits dropped to 29, a decrease of <br /> 42%. <br /> Presented in Attachment S is an evaluation of the range of <br /> dwelling sizes constructed in 1988 and 1989 . The floor area <br /> ranges were divided along the same lines as for the template <br /> scenarios (1000, 1500, 2000 sq. ft. , etc. ) . Based on building <br /> permit and tax records for which floor area data was <br /> available, it was determined that approximately 75% of actual <br /> building situations ( 1000-2500 sq.ft. ) were covered by the <br /> template scenarios. Since earlier modeling efforts included <br /> floor areas ranging from 1500 to 4500 sq.ft. and the <br /> compliance rates were generally the same (60% for 5-acre <br /> lots/30% for 2-acre lots) , it was felt the template <br /> accurately represented actual situations . <br /> For both 1988 and 1989, the mean (average) and median <br /> (midpoint-half above/half below) size of single-family <br /> dwellings constructed in the watershed was approximately 2100 <br /> sq.ft. Thus, the 2000 sq. ft. scenarios would be indicative of <br /> the difficulties experienced, on average, in complying with <br /> the recommended standards . • <br /> Alternatives to Recommended Standards <br /> Based on the analysis of development scenarios and building <br /> construction trends, the following alternatives to the <br /> recommended standards are suggested for consideration: <br /> 1. Accept the CDM recommended standards. <br /> By accepting the CDM standards, 60% of 5-acre <br /> development scenarios and 30% of the 2-acre development <br /> scenarios would comply. To deal with those situations <br /> which do not comply, several possibilities exist. <br />