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June 13,2005 <br /> NOA Project Number: E05071A <br /> ✓3.2 On-Site Septic System Permit History <br /> No septic permits were found for the Site during file review at EHD on June 3,2005. <br /> ✓3.3 On-Site Septic System Repair Permit History <br /> No septic permits were found for the Site during file review at EHD on June 3,2005. <br /> 3.4 Existing Septic System Usage in the Vicinity <br /> V In an attempt to determine the septic system density for the vicinity of the Site, our office reviewed <br /> a 1993 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 /> cluster has one septic system. Using this method,we determined that there are a minimum of 175 <br /> septic systems per square mile in the immediate vicinity of the Site. <br /> The general area consists of agriculture and scattered residences.There is a concentration of <br /> residences and businesses lining Highway 99. <br /> 3.5 Septic System 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 June 3,2005: <br /> Table 1. <br /> Vicinity Septic System Permit Summary. <br /> Address,Date Tank Lines,Length,Pits Comments <br /> Capacity <br /> 2_5565 Highway 99,9-23-77 1200 gal Three 40 foot lines,three 36"in New installation to <br /> diameter x 25'deep seepage pits residence <br /> i 25570 E.Highway 99,5-10-95 1600 gal Three 40 foot lines,one33"in New installation to <br /> \„ diameter x 25'seepage pit residence <br /> 25570 N.Highway 99,11-2-77 1200 gal Two 40 foot lines,two 33"in New installation <br /> diameter x 25'deep seepage pits <br /> 25570 N.Highway 99,10-7-87 1600 gal Three 40 foot lines,three 33"in New installation to a <br /> diameter x 25'deep seepage pit residence <br /> 2.5.601 N.Highway 99,7-7-78 1200 gal Three 40 foot lines,three 33"in New installation <br /> diameter x 25'deep seepage pit <br /> 25650 N.Highway 99,10-14-57 Not One 60 foot line,one 33"inNew installation <br /> a.. <br /> reported diameter by 20'deep see a e piT <br /> Note:The septic systems in the area appear to utilize leach lines and seepage pits. <br /> v <br /> 3 <br />