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May 18,2005 <br /> NOA Project Number. E05059A <br /> L ✓Presaturation of the percolation test holes occurred on May 9, 2005. The depth of water used to <br /> pre-soak was 12 inches above the bottom of the borings. <br /> L ✓6.4 Condition of Borings After Presaturation <br /> After the 24-hour soak period, the presaturated holes were found to be intact on May 10,2005.The <br /> Lshallow percolation test holes contained water on the bottom; the deep percolation test holes were <br /> dry. <br /> Lf6.5 Percolation Test Procedure <br /> Percolation tests were conducted for the borings on May 10, 2005 in accordance with the <br /> Lrequirements of the EHD. A percolation test with a duration of four hours was performed for each <br /> hole. The last half an hour was observed by Ms. Lisa Medina, Senior Registered Environmental <br /> Health Inspector, FED. <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 /> bottom level of the percolation test hole. The readings were taken every 30 minutes for a period of <br /> L four hours. <br /> II ✓ 6.6 Percolation Test Forms and Results <br /> L <br /> The completed percolation test form is included in the appendix of this report. <br /> A shallow percolation test is defined by the EHD as being between 36 and 42 inches in depth;a <br /> 6' satisfactory percolation rate for a shallow test is less than or equal to 60 minutes per inch drop. A <br /> deep percolation test is defined as being between 3.5 and 25 feet in depth;a satisfactory percolation <br /> rate for a deep test is 30 min/in or less. One percolation test must demonstrate a satisfactory <br /> 6. percolation rate within the proposed septic system disposal field of each parcel to utilize a standard <br /> septic system. Details of the percolation tests are summarized in Table 5. <br /> L <br /> L <br /> iL <br /> L <br /> 9 <br /> L .,44 <br /> L <br />