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Percolation Test One shallow percolation test was conducted on each parcel op a Si e; the shallow soil borings discussed above were used for the percolation test holes (Plate 2),,;�ercolation test procedures conformed to San Joaquin County Enviromm ntal Health Department / policy. Live Oak was not grated access to the held by the property owner and tenant farmer; therefore, the percolation tests were conducted along the east dirt road about 20 feet from a shallow and intermittent irrigation ditch. The property owner has no plans for utilizing new septic systems on the property at this time. Lisa Medina, Senior Registered Environmental Health Specialist at the San Joaquin County Environmental Health Department, indicated when asked that since it is a small intermittent ditch, and given that no septic system are planned to be placed in the area, it was acceptable to conduct the tests in this area_ Preparation and Presaturation of Percolation Test Holes After the borings were advanced by hand auger and the soils logged, the test holes were completed for the percolation tests. Approximately one inch of pea gravel was placed in the bottom of each open soil boring, followed by a 1.5-inch diameter PVC pipe with perforations on the. bottom. Pea gravel was then used to backfill a few inches of the annular space. Live Oak presaturated the percolation test holes approximately 24 hours prior to the .percolation test. Each hole was filled with water to a height of 12 inches above the bottom of the boring for the presaturation. On the day of testing, all four holes were found to be intact and dry. Percolation Test Procedure Live Oak conducted the percolation tests for the borings on April 22, 2011. Due to initial percolation rates observed, four-hour tests were selected. Water level measurements were taken every half-hour during this four-hour period. Ted Tasiopoulos, Senior Registered Environmental Health Specialist at the San Joaquin County Environmental Health Department, observed the last half-hour of each test. An electronic well sounder with a depth accuracy of 1/100th foot was utilized for the water level measurements. The water level was measured against a fixed reference point on the well casing. Measurements were recorded on the data sheet in decimal feet. When necessary after measuring the water level, the holes were refilled with water to a level of six inches above the bottom of the hole. LOGE 1116 Page 6