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June 15,2005 NOA Project Number: E05065A Table 2. Soil Boring Log Parcel 2. Depth Interval(ft) Soil Type Unified Soil Classification 0-3 Brown,slightly moist,sandy clay with some CL gravel 3-7 Brown,slightly moist,sandy clay CL 7-25 Brown,slightlymoist,gravely clay CL Our office encountered difficulty while drilling on the proposed parcels of the property. On Parcel 2 the rig was able to drill to 25 feet,yet drilling was very difficult and slow. LWhile drilling on Parcel 3, our office encountered ground water at 13 feet in a boring drilled to a depth of 18 feet. Our office believes that this is a seasonal perched water level and resides above the hardpan. To avoid the perched ground water, our office moved the drilling location 50 feet to the L south. During the drilling of the second boring on Parcel 3,we encountered drilling refusal at 9 feet. p The 25 foot boring on Parcel 2,the three and a half foot borinn on Parcel 3 and the 9 foot boric ` on Parcel 3 d for thepercolation test.Within the boring, about an inch of"pea gravel was placed in the bottom o the hole to stabilize the side wall from caving and prevent erosion while filling the boring.A 2-inch diameter PVC pipe with open ends and slots was placed in the hole. About 6-inches of pea gravel was placed in the annular space around the pipe. The hole was pre-soaked 24 hours prior to the test with 12 inches of water above the bottom of the hole. LPresoaking of the percolation test hole occurred on June 2,2005. The percolation tests were conducted for the borings on June 3,2005 in accordance with the L requirements of the EHD. A percolation test with a duration of four hours was performed for each hole. The final half-hour of each four-hour percolation test was observed by Mr. Michael Escotto, Registered Environmental Health Specialist,Environmental Health Department (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 L values on the field data sheet (attachment) 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 approximately every 30 minutes f for a period of four hours. L 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 L percolation rate within the proposed septic system disposal field of each parcel to be suitable for a standard septic system. Details of the percolation tests are summarized in Table 3. Y .*44L