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VIII. GROUNDWATER <br /> A groundwater test was performed on the well located on Parcel 2. The <br /> sample was taken by Mike Toy of Dillon & Murphy from a spigot at the house <br /> located at 9791 Henry Road. It was immediately driven to Precision Enviro-Tech <br /> for testing of nitrates and DBCP. The results can be found in the appendix. <br /> IX. CONCLUSION <br /> The results of the percolation tests on these parcels were as expected. Mr. <br /> Sarver was aware of a hardpan strata and when he installed his leach field, he had <br /> to install pits at twenty-five feet deep. I would expect future septic systems would <br /> encounter hardpan issues. <br /> The nature of soil is that characteristics can vary significantly in a fairly small <br /> area. Dillon & Murphy performed two shallow tests as required by the <br /> Environmental Health with the anticipation of them failing. As expected, the <br /> percolation tests did not meet County minimum. Anderson was retained to perform <br /> deep tests and shallow tests. Their results were mixed. <br /> The percolation rate on the 48-acre parcel (shallow test) passed per County <br /> standards. The recommendation for Parcel 1 is for a conventional septic system <br /> with leach lines and pits, even though the tests results do not require pits. In <br /> speaking with the owner and reviewing surrounding property permits, everyone in <br /> the area utilizes pits to 25 feet. <br /> The 5-acre parcel did not pass the deep test and barely failed the shallow <br /> tests (62 min/inch verses 60 min/inch as required). The existing system has pits <br /> 25 feet deep and has experienced no problems the last ten years. There are no <br /> plans for a second unit dwelling on the Parcel 2 although current zoning would <br /> allow it. Rather than randomly drill holes looking for an area that has a sand strata, <br /> I recommend any future homesite have an engineered system designed. (See <br /> appendix for preliminary design since there is not plans for a house.) <br /> Based on the depth to ground water in the area, and the size of the proposed <br /> parcel, it is our opinion that the installation of any new proposed septic system, if <br /> properly installed, should not adversely affect the quality of ground water in the <br /> area. Future home sites should reserve 12,000 sq ft of leach area for each system <br /> to allow for replacement area. Percolation rates of 60 min/inch should be used for <br /> design criteria. <br /> 4 <br /> C:\0338\Sail Suitability Report 072203 <br />