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"7�j rrDATA § 5.2, 5.3, and 5.4) A Log of Boring using the Unified Soil Classification System (U.S.C.S.), asbserved in the 36 inch shallow perc test borings, is found on the EHD PERCOLATION TEST SHEET. No cemented silts hardpan soil stratum was discernible at depths down to the minimum leachline trench depth of 36 inches. (§ 6.1) Percolation testing was conducted in the locations illustrated on the Tentative Map found in Appendix C. These test locations maintains sufficient distance requirements between wells, property lines, an irrigation ditch, etc. The following information describes the preparation of the percolation test boring and the actual percolation testing: (§ 6.2,6.3 and 6.5) On November 13, 2008, 0800 hrs, shallow perc test borings of 36 inches were hand-drilled on proposed Parcel 1 and proposed Parcel 2. The sidewalls of these shallow borings were scored with a pry-bar and the loose material removed. Two inches of fine gravel was placed at the bottom and a three-inch perforated PVC pipe was inserted into each test boring. The borings were then pre-saturated at 0900 hrs with 12 inches of clear water. (§ 6.4) On November 14, 200$ 0800 hrs,percolation testing commenced. There was no standing water after the 24-hour soak period in the perc test borings due to the fine sandy-silty type soil, as illustrated in Table 1 below. Consequently, EHD Perc Test Procedure#2 was conducted for both test borings. The last half hour of the test was witnessed by Lisa Medina, R.E.H.S. of the San Joaquin County Environmental Health Department. Both proposed Parcel 1 and 2 exhibited acceptable percolation at 25.0 min/in and 35.7 min/in, respectively. The maximum acceptable perc rate is 60 min/in for shallow perc tests. (§ 5.4 and 6.8) The following Table illustrates the proposed Parcel number, septic system structure to be installed based on the depth of the passing perc rate, proposed acreage, post soak period status and perc test results for the respective perc test. TABLE 1 PERCOLATION TEST RESULTS AND RELATED DATA PROPOSED PARCEL PROPOSED SHALLOW PERC TEST POST SOAK PERC TEST POTENTIAL S1 ACREAGE DEPTH PERIOD RESULTS SYSTEM STRUCTURE STATUS Parcel 1 127.0±Acres 36 INCHES No Standing 25.0 min/in loo Foot t.eeohenes Per Water in Hole Bedmom Parcell 123.0±Acres 36 INCHES No Standing 35.7 min/in 100 Foot L ehli..Per Water in Hole Bedroom Page -3- Chesney Consulting