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April 202004 <br /> NOA-Project Number':'E04002A <br /> Page 3 <br /> 3.0- EXISTING AND PROPOSED SEPTIC TANK USAGE <br /> V1 3.1 Existing On--Site Septic.Tank Usage <br /> According to the revised Site Plan provided by Mr. Haddock, two septic systems existed on the <br /> Site until recently: _Mr. Haddock indicated that those septic systems have been-properly = <br /> -. abandoned under the oversight of the EHD (.personal communication,April 14, 2004, 9:45 a.m.). <br /> 3.2 Site Septic and Septic Repair Permit History <br /> Files at EHD were reviewed on April 9, 2004 for.new and repair permits for septic systems. No <br /> permits were located for the Site. According to Ms. Dianne Martinez of EHD, interviewed by <br /> telephone on April 13, 2004, the only permit on file for the site address of.12405 East Brandt , <br /> F! Road is a well/geotechnical permit dated December 19, 2003. This permit was not located <br /> during the file review. <br /> F <br /> ✓ 3.4 Existing Septic Tank°Usa a in,the Vicinity <br /> g P g Y <br /> In an attempt to determine the septic system density_for the vicinity of the Site, our office <br /> reviewed.a 1993 aerial photograph of the subject property available from Microsoft Terraserver. <br /> We counted the building clusters within one square mile of the Site, and made the assumption <br /> that each building cluster.has one septic system. Using this method, we determined that there are <br /> a minimum of 15 septic systems per square mile in the'immediate vicinity of the Site. <br /> 1 A3.5 Septic and Septic Repair Permit History in the Vicinity <br /> The following septic system and repair permits were found for the vicinity of the Site during file- . <br /> review at EHD on Apri19, 2004: - <br /> Table 1. <br /> Septic System Permit Su m- mary. -. <br /> Address,Date .Tank Capacity Lines,Length,Pits= Comments <br /> 12101E.Brandt Rd., 1600g al Three 40-ft leach line and New installation_ <br /> 6124176 — three 48-in diameter by 2541 <br /> _. ,deep seepage pits.' <br /> 12101 E.Brandt Rd., --- Addition of three 33-in <br /> 9"123177 - diameter by 25-ft seepage pits <br /> to existing system. <br /> F12101 E. Brandt Rd., Not listed Seepage pits and sand traps. New installation. <br /> -� 10/29/79 - <br />