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L <br /> February 13,2007 <br /> NOA Project Number. E07010A <br /> Measurement of the water level during the percolation test was from a fixed 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 every 30 minutes for a period of <br /> four hours. <br /> G <br /> 6.6 Percolation 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 less than or equal to 30 minutes per inch drop. Either a shallow or deep j <br /> percolation test must demonstrate a satisfactory percolation rate within the proposed septic system <br /> disposal field of each parcel to utilize a standard septic system. Details of the percolation tests are <br /> summarized in Table 4. <br /> Table 4. <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 3.34 250 4 hours Failing etcolation Rate <br /> 1-23-07 <br /> " P-1 Deep 21.77 3.12 4 hours Satisfactory percolation rate <br /> 1-23-07 <br /> P-2 Shallow <br /> Ir 3.25 25 4 hours % F " Percolation Rate <br /> 1-23-07 <br /> P-2 Deep 21.75 7.78 4 hours Satisfactory percolation rate <br /> 1-23-07 <br /> P-3 Shallow <br /> 1-23-07 330 62.50 4 hours Farling ercolation Rate <br /> P-3 Deep 22.05 6.09 4 hours Satisfactory percolation rate <br /> 1-23-07 <br /> P-4 Shallow 3.4 15.62 4 hours Satisfactory percolation rate <br /> 1-23-07 <br /> P-4 Deep 15.14 3.28 4 hours Satisfactory percolation rate <br /> 1-23-07 <br /> Note: A satisfactory percolation rate for a"shallow'test is less than or equal to 60 minutes per inch.A satisfactory <br /> percolation rate for a"deep"test is less than or equal to 30 minutes per inch. <br /> r <br /> 9 <br />