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Fit February 16, 2005 NOA Project Number: E040148A The holes were found to be dry. 6.5 Percolation Test Procedure Percolation tests were conducted for the borings on February 9, 2005 in accordance with the requirements of the EHD. A percolation test with a duration of one hour was performed for each hole. The entirety of each percolation test was observed by Ms. Lisa Medina, Registered Environmental Health Inspector, EHD. Measurement of the water level during the percolation test was from a fixed reference point on the PVC casing using an electric well sounder with an depth accuracy of 1/100th foot. All tabulated values on the field data sheet (appendix) are in decimal feet. After water drop was observed, the F11 holes were checked for refill. The refill level was approximately 0.5 ft (6 inches) of water above the bottom level of the percolation test hole. The readings were taken approximately every 10 minutes for a period of four hours. � '''F1Ul 6.6 Percolation Test Forms and Rests The completed percolation test forms are included in the appendix of this report. A shallow percolation test is defined by the EHD as being between 36 and 42 inches in depth;a satisfactory percolation rate for a shallow test is less than or equal to 60 minutes per inch drop. For project approval, one shallow percolation test must demonstrate a satisfactory percolation rate within the proposed septic system disposal field of each parcel. Details of the percolation tests are summarized in Table 6. I 1 Table 6. ! Summary of Percolation Tests. 1 F1 Test No., Percolation Percolation Rate Test Comment Date Tested Test Depth(ft) (minutes/inch) Duration (see notes) P-1 shallow,2-9-05 3.03 27.78 1-hr Satisfactory percolation rate (Parcel 1) P-2 shallow,2-9-05 114 13.89 1-hr. Satisfactory percolation rate (Parcel 2 Note:. A satisfactory percolationrate for a"shallovd'test is less than or equal to 60 minutes per inch. LJ 8 �4