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6. <br /> March 24,2005 <br /> NOA Project Number: E05025A <br /> �. Presaturation of the percolation test holes occurred on March 15,2005. The depth of water used to <br /> pre-soak was 12 inches above the bottom of the boring. <br /> 6.4 Condition of Borings After Presaturation <br /> L After the 24-hour soak period,the presaturated holes were found to be intact and dry on March 16, <br /> 2005. <br /> 6.5 Percolation Test Procedure <br /> Percolation tests were conducted for the borings on March 16,2005 in accordance with the <br /> requirements of the EHD. A percolation test with a duration of one hour was performed for each <br /> hole. The entirety of the one-hour percolation tests were observed by Ms.Lisa Medina,Registered <br /> Environmental Health Inspector,EHD. <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 approximately every 10 minutes <br /> for a period of one hour. <br /> 6.6 Percolation Test Forms and Results <br /> The completed percolation test forms are 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 One <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 8. <br /> Table 8. <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,3/16/05 <br /> Parcel 1) 3.37 5.56 I hr Satisfactory percolation rate <br /> P-2 shallow,3/16/05 3.36 2.25 1-hr. Satisfactory percolation rate <br /> (Parcel 2 <br /> Note: A satisfactory percolation rate for a"shallow'test is less than or equal to 60 minutes per inch. <br /> 9 '044 <br />