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L March 22, 2005 <br /> NOA Project Number: E04132A <br /> November 19, 2004. The permit is dated 10-6-71 for the installation of a 1200 gallon tank. <br /> No files were found for the address of 8998 East Mariposa Road during file review on November <br /> 19, 2004. <br /> IVA 3.3 On-Site Septic Repair Permit History <br /> The only permits found for the subject property are noted in the above section. <br /> 3.4 Existing Septic Tank Usage in the Vicinity <br /> In an attempt to determine the septic system density for the vicinity of the Site, our office reviewed <br /> a 2002 aerial photograph of the subject property available from Microsoft Terraserver. We counted <br /> the building clusters within one square mile of the Site, and made the assumption that each building <br /> Lcluster has one septic system. Using this method,we determined that there are a minimum of 17 <br /> septic systems per square mile in the immediate vicinity of the Site. <br /> i The general area consists of agricultural land and occasional small residential parcels. <br /> 3.5 Septic Permit History in the Vicinity <br /> LThe following septic system permits were found for the vicinity of the Site during file review at <br /> EHD on November 19, 2004: <br /> Table 1. <br /> Vicinity Septic System Permit Summary. <br /> Address,Date Tank Lines,Length,Pits Comments <br /> Capacity <br /> 8145 E.Mariposa Rd,7-12-88 1,200 gal Three 40-ft leach lines,three New installation to residence. <br /> 33-in diameter by 25-ft deep <br /> seepage pits <br /> 9028 E.Mariposa Rd,8-26-85 1,200 gal -- New installation of septic tank <br /> 9222 E.Mariposa Rd,7-18-94 1,200 gal Three 40-ft leach lines,Three <br /> 30-in diameter by 25-ft deep New installation to residence. <br /> seepage pits <br /> The septic systems in the area appear to utilize leach lines with seepage pits. <br /> 3 <br />