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January 26, 2006 <br /> NOA Project Number: E05091B <br /> L" 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 recent aerial photograph of the subject property available from Google maps.com, <br /> (Googlemaps.com).We counted the building clusters within one square mile of the Site, and made <br /> the assumption that each building cluster has one septic system. Using this method,we determined <br /> that there are a minimum of 30 septic systems per square mile in the immediate vicinity of the Site. <br /> The general area consists of residences and agriculture. <br /> P 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 January 23, 2006: <br /> Table 1. <br /> Vicinity Septic System Permit Summary. <br /> Address,Date Tank Lines,Length,Pits Comments <br /> Capacity <br /> 640 North Sargent Avenue 550 gal One 38'line,24" tench width New installation to <br /> 12-30-1950 residence <br /> 640 North Sargent New installation to <br /> ... 300 gal One 20 line,24 trench width <br /> 4-17-1957 residence <br /> 652 North Sargent 1,200 gal 4 leach lines (25,50,100& 100') New installation to <br /> 3-19-1954 One 36"x 25' seepage pit residence <br /> The septic systems in the area appear to utilize leach lines and pits. <br /> 3.6 Septic Repair Permit History in the Vicinity <br /> No septic system repair permits were found for the vicinity of the Site during file review at EHD on <br /> January 23, 2006. <br /> 4 <br />