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5. SOIL PROFILE INFORMATION: The site map showing the location of the soil profile pit is attached herewith for information. The soil profile pit was 3' wide x 3' long and 3' deep. The soil was sandy loam some what course - loamy, very little percentage of clay and high percentage of course sand. Soil formed a weak ball that can be easily break off. Sand was gritty to the touch with individual grain or particles that can be seen with naked eye. Sand dominated the texture. The pit had the similar sandy loam soil to the full depth of the pit 3'. The soil was well drained and it is anticipated that the septic uses will continue functioning adequately in the future. 6. PERCOLATION TEST INFORMATION: The site map showing the location of the percolation test hole is attached herewith for information. The percolation test hole was 12" round and 38" deep with 2" gravel. There was only one test hole for this existing parcel with existing septic tank system. The hole was dug on April 14, 2010 in the morning. The hole was filled with water for the 24 hour soaking period. There was no water left in the hole next morning. The Percolation test was started at noon on April 15, 2010 by adding 6" of water and reading every 30 minutes for four hours. All readings were recorded on the Percolation Test Form provided by San Joaquin County, Environment Health Department, the completed form is attached herewith.— Based on the last reading of the water drop of_ 5.3" in 30 minutes that is 30/5.3 5.7 minutes/inch. Using CPC occupancy of 8 with 1200 gaolon septic tank, the leach line required= 1200+8x15ADF = 1320 x .20 soil factor = 264' leach line. 3 lines of 70' each = 210' existing leach lines. Therefore, it is recommended to install 60' of ditional leach line as shown on the attached drawing. This will make a total of 270' beach l' which is more than the 264' leach line required. 7. CONCLUSION: It is concluded that based on the soil litho and percolation test results,the existing septic system with additional leach line will continue functioning adequately to serve the commercial occupancy in the future. SPR F s/o DER ,9 9q�Fy Zfr �>5 Submitted By: I �� _ Date: No 37 r- m > �rf+. 9. 3,0 -11 �9T C1VIL �/�P FCF Vol, Reviewed By: Date: