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!_1 <br /> April 29, 2005 <br /> NOA Project-Number: E05040A <br /> Measurement of the water level during the percolation test was from a fixed reference point on the <br /> i PVC casing using an electric well sounder with an depth accuracy of I/1 00th foot. All tabulated <br /> values on the field data sheet-(appendix) are in decimal feet. After water drop was observed, the <br /> '' holes were checked for refill. The refill level was approximately 0.5 ft (6 inches) of water above the <br /> bottom level of the percolation test hole. The readings were taken every 30 minutes for a period of <br /> four hours. <br />'I 6.6 Percolation e colation Test Forms and Results <br /> The completed percolation test form is included in the appendix of this report. <br /> A shallow percolation test is defined by the EHD as being between 36 and 42 inches in depth; a <br /> satisfactory percolation rate for a shallow test is less than or equal to 60 minutes per inch drop. A <br /> deep percolation test is defined as being between 3.5 and 25 feet in-depth; a satisfactory percolation <br /> rate for a deep test is 30 min/in or less. "One percolation test must demonstrate a satisfactory <br /> percolation rate within the proposed septic system disposal field of each parcel to utilize a standard <br /> septic system. Details of the percolation tests are summarized in Table 5. <br /> = Table 5. <br /> Summary of Percolation Tests. <br /> Test No., Percolation Percolation Rate Test Comment <br /> Date Tested Test Depth(ft) (minutes/inch) Duration. (see notes) <br /> ! P-8 shallow,4/20/05 313 7.35 4-hr Satisfactory percolation rate <br /> (Parcel 8) _ <br /> P-$deep,4/20/05 <br /> 724.43 4.39 4-hr. Satisfactory percolation rate <br /> (Parcel 8) =- - <br /> R9 shallow,4/22/05 - No percolation drop observed, f <br /> (Parcel 9} 3.27 4-hr fail <br /> P-9 deep,4/22/05. <br /> {Parcel 9) 23.99 3.79 4-hr. Satisfactory percolation rate <br /> P-10 shallow,4/22/05 a <br /> (Parcel 10) = 3.12 125 4-hr Slow percolation rate,fail <br /> P-10 deep,4/22/05 <br /> (Parcel 10) 23.96 4.17 4-ht. Satisfactory percolation rate <br /> P-11 shallow,4/20/05 <br /> (Parcel ll) - 3.46 83.3 4-hr Slow percolation rate,fail <br /> P-11 deep,4/20/05 24.66 2.36 4-hr. Satisfactory percolation rate <br /> €-!" (Parcel 11) <br /> 9 <br />