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L <br /> February 21,2007 <br /> NOA Project Number: E07015A <br /> r <br /> 3.4 Existing Septic Tank Usage in the Vicinity <br /> r. In an attempt to determine the septic system density for the vicinity of the Site,our office reviewed <br /> a 2005 aerial photograph of the subject property available from GoogleMapsTm. We counted the <br /> L building clusters within one square mile of the Site, and made the assumption that each building <br /> cluster has one septic system. Using this method,we determined that there are a minimum of 150 <br /> septic systems per square mile in the immediate vicinity of the Site. <br /> L. The general area consists of light impact manufacturing,warehousing,wholesaling and construction <br /> contracting buildings. <br /> 3.5 Septic Permit History in the Vicinity <br /> The following septic system permit was found for the vicinity of the site during file review at the <br /> EHD on January 4,2007: <br /> LTable 1. <br /> Vicinity Septic System Permit Summary <br /> Address,Date Cap airy Lines,Length,Pits Comments <br /> 9508 S.Harlan Road 2000 gal Four,100'leach lines New installation to a trailer <br /> 3-30-78 court <br /> LThe septic systems in the area appear to utilize leach lines. <br /> L3.6 Septic Repair Permit History in the Vicinity <br /> f The following septic system repair permits were found for the vicinity of the Site during file review <br /> at the EHD on April 20,2006: <br /> Table 2. <br /> Vicinity Septic S stem Repair Permit Summary <br /> Address,Date C ank Lines,Length,Pits Comments <br /> 9508 S.Harlan Road Add 40'x 4'filter bed to Repair/Addition <br /> 6-19-00 existing 14 x 60'filter bed <br /> 10590 S.Harlan Road Add one,75'leach line to Repair/Addition <br /> 2-1-88 exiting system <br /> 9950 S.Harlan Road Addition of one,40'leach line Repair/Addition <br /> 10-20-83 and a 10 x 4 x 8 sump <br /> 3 '004 <br />