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December 11,2006 NOA Project Number: E06141A Presatutation of the percolation test holes occurred 24-hours before the percolation test. The depth of water used to pre-soak was 12 inches above the bottom of the boring. ' 6.4 Condition of Borings After Presaturation After the 24-hour soak period, the presaturated holes were found to be intact and dry. 6.5 Percolation Test Procedure Percolation tests were conducted for the borings on,0 1�o er 006 in accordance with the requirements of the EHD. A percolation telt wit, a duration of ur hours was performed for each hole. The last half an hour was observed b Mr. Ted Tasiopoulo , 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 / 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 every 30 minutes for a period of four hours. flk 6.6 Percolation Test Forms and Results The completed percolation test form is 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. A deep percolation test is defined as being between 3.5 and 25 feet in depth;a satisfactory percolation rate for a deep test is less than or equal to 30 minutes per inch drop. One percolation test must demonstrate a satisfactory percolation rate within the proposed septic system disposal field of each parcel to utilize a standard septic system. Details of the percolation tests are summarized in Table 5. F a 10