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L <br /> LMay 17,2005 <br /> NOA Project Number: E04146B <br /> I / <br /> L '" 3.2 On-Site Septic Permit History <br /> LOne septic permit was found for the Site during file review at EHD on May 3,2005. The permit, <br /> dated April 9,2004,was for the installation of a new septic system with a 1,600-gallon septic tank <br /> and four 100-foot leach lines. This permit is included in the appendix of this report <br /> L <br /> 3.3 On-Site Septic Repair Permit History <br /> LOne septic repair permit was found for the Site during file review at EHD on May 3,2005. The <br /> permit, dated November 9, 1999,was for an addition to an existing septic system. A new 1,200- <br /> gallon septic tank and one 100-foot infiltration line were installed. <br /> L ✓3.4 Existing Septic Tank Usage in the Vicinity <br /> LIn an attempt to determine the septic system density for the vicinity of the Site, out office reviewed <br /> a 1993 aerial photograph of the subject property available from Microsoft Terraserver. We counted <br /> L the building dassumption within one square mile of the Site, and made the assmption that each building <br /> cluster has one septic system. Using this method,we determined that there are a minimum of five <br /> septic systems per square mile in the immediate vicinity of the Site. <br /> L /The general area consists of agriculture with a few residences. <br /> L1//3.5 Septic Permit History in the Vicinity <br /> The following septic system permits were found for the vicinity of the Site during file review at <br /> EHD on May 3,2005: <br /> ' Table 1. <br /> Vicinity Septic System Permit Summary. <br /> Address,Date Tank Lines,Length,Pits Comments <br /> L Capacity <br /> 12668 Vail Rd.,10/12/1983 1,200 gal One 70-ft leach line New installation to shop. <br /> L26615 Vail Rd.,3/28/1983 1,200 gal Two 70-ft leach lines New installation to residence. <br /> 26755 N.Vail Rd.,6/19/1981 1,200 gal Three 100-ft leach lines New installation to residence. <br /> L26889 Vail Rd.,5/19/1980 1,200 gal Three 80-ft leach lines New installation to mobile home. <br /> 26889 Vail Rd.,5/15/1981 Not reported Four 70-ft leach lines New installation to residence. <br /> L26969 N.Vail Rd.,10/16/1986 1,200 gal Three 80-ft leach lines New installation to residence <br /> LThe septic systems in the area appear to utilize leach lines. <br /> 1 3 <br /> L '-444 <br /> L <br />