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ism <br /> October 13,2004 <br /> NOA Project Number: E040109A <br /> Measurement of the water level during the percolation test was from a fined reference point on the <br /> ` PVC casing using an electric well sounder with an depth accuracy of 1/100th 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 approximately every 30 minutes <br /> for a period of four hours. <br /> aw /6.6 Percolation Test Forms and Results <br /> The completed percolation test forms are included in the appendix of this report. <br /> hm <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. Details of the <br /> sm 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-1 shallow,9-30-04 3.42 250 4-hr Fail. <br /> (Parcel 1) <br /> P-1(Pap el 1) -04 24.71 (10 <br /> j 4-hr. Satisfactory percolation rate. <br /> P-2 shallow,9-30-04 3.()4 4-hr. No movement,fail. <br /> (Parcel 2) <br /> P-2 deep,9-30-04 24.64 4.5 4-hr. Satisfactory percolation rate. <br /> `, Parcel 2 <br /> Note: A satisfactory percolation rate for a"shallow"test-isle-ss than or equal to 60 minutes per inch. <br /> A satisfactory percolation rate for a"deep"test is less than or equal to 30 minutes per inch. <br /> 6.7 Discussion of Percolation Test Results <br /> The soils within the sewage disposal areas of Parcels 1 and 2 have demonstrated a satisfactory <br /> percolation rate for the deep soil zone in accordance with the requirements of the EHD. The soils <br /> of these parcels appear to be suitable for a septic system utilizing deep leach lines and seepage pits. <br /> w <br /> V <br /> 9 <br />