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August 5,2005 NOA project Number: E05098A. Was then used to backfill in the annular space_ Presaturation of the percolation test holes occurred on July 31;2005. The depth of water used to pre-soak was 12 inches above the bottom of the borings. ✓6.4 Condition of Borings After Presaturation After the 24-hour soak period,-the.pre.saturated holes were f6und-to be intact on the day of testing. Both the deep and the shallow.holes on the subject property v ere found to be dry on the day of testing- V16.5 esting.V6.5 Percolation Test Procedure for tests were conducted fr the borings on the site on Au st 3, 2005 in accordance with _ ... g 1� _ the requirements of the EH-D. A percolation testwith a duration of four hours was performed for each hole. The last half an hour was observed by Mr. Michael Escotto, 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-I/100th foot:=All tabulated values on the-field data-sheet (appendix) are in.decim-al 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 Bole. The readings were.taken every 30_minutes.fora period of four hours. /6.6 - Percolation Test-Forms and Results The completed percolation test forms are included in the appendix of this report. L� A shallow percolation test is defined by_-the EHD as being between 36 and 42 inches iii 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 m depth;a satisfactory percolation .. rate for a deep testis 30 min/in.or less. One percolation test must.demonstrate a satisfactory percolation rate within the proposed septic systerh disposal field-of each parcel to utilize a.standard septic system. Details of the percolation tests are summarized in Table 4. 8