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L <br /> LJune 1, 2006 <br /> NOA Project Number: E05179A <br /> L6.5 Percolation Test Procedure <br /> Percolation tests were conducted for the shallow borings on February 27,2006, and were conducted <br /> Lfor the deep borings on May 12,2006 in accordance with the requirements of the EHD. A <br /> percolation test with a duration of four hours werg performed for each hole. The last half an hour <br /> L of each test was observed by Mr.Ted Tasiopoulo 7lkegistered Environmental Health Specialist, <br /> EHD. <br /> L 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 /> Lbottom level of the percolation test hole. The readings were taken every 30 minutes for a period of <br /> four hours. <br /> L6.6 Percolation Test Forms and Results <br /> The completed percolation test form is included in the appendix of this report. <br /> Lshallow 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 loss than or equal to 60 minutes per inch drop. A <br /> deep percolation test is defined as being between3.5 and 25-feet in depth;a satisfactory percolation, <br /> L. rate for a deep test is 30 min/in or less. One percolation test must demonstrate a satisfactory <br /> percolation rate within the proposed septic system disposal field of each parcel to utilize a standard <br /> Lseptic system. Details of the percolation tests are summarized in Table 4. <br /> Table 4. <br /> LSummary of Percolation Tests <br /> Test No., Percolation Percolation Rate Test Comment <br /> Date Tested Test Depth(ft) (minutes/inch) Duration (see notes) <br /> �. Parcel A,Shallow 3.03 7.14 �I 4 hour Satisfactory Percolation Rate <br /> 2-27-06 <br /> Parcel B,Deep Z4.43 3.57 4 hour Satisfactory Percolation Rate <br /> L 5-12-06 <br /> Parcel B,Shallow 3.12 \o movement 4 hour Failing Percolation Rate <br /> L 2-27-06 <br /> Parcel C,Deep 24,40 4.55 4 hour Satisfactory Percolation Rate <br /> 1 5-12-06 <br /> LParcel C,Shallow 3.03 No�movement 4 hour Failing Percolation Rate <br /> 2-27-06 <br /> L <br /> 7 <br /> L "444E <br />