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` January 26,2006 NOA Project Number: E05091B Presaturation of the percolation test holes occurred on December 6, 2005. The depth of water used - to pre-soak was 12 inches above the bottom of the borings. r. 6.4 Condition of Borings After Presaturation After the 24-hour soak period, the presaturated holes were found to be intact and dry on December 7,2006. ti. 1/6.5 Percolation Test Procedure A percolation test was conducted on the subject property on December 7,2005 in accordance with the requirements of the EHD. A percolation test with a duration of four hours was performed for the test hole. The last half hour of the test was observed by Mr. Ted Tasiopoulos,Registered Environmental Health Specialist,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 half hour for a period of four hours. 6.6 Percolation Test Forms and Results ,m 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 30 minutes per inch or less. A 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. 10 "'04 L