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Nassano Property Page 3 of 4 Our Project Number: LGSOBOS21 June 5, 2008 Within the boring, an inch of "pea gravel' was placed in the bottom of 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 six 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. During the percolation test, the fall of six inches of water was measured above the top of gravel during the four (4) hour test period. Measurements were made every 30 minutes for a four (4) hour period. The pre-saturation of the test holes was performed approximately 24 hours prior to the day of percolation testing. The percolation tests for Parcel 6 and Parcel 7 were performed on June 5, 2008, and the tests for Parcel 5 and the designated remainder were performed on June 6, 2008. Table 5 Summary of Percolation Tests Test No., Date PercolationPercolation Comments Tested Test Depth Rate /' min to Test Duration ( ) (see notes) DR (deep) 24.60 62.5 4 Hours Failing percolation 06/06/08 Rate DR (shallow Satisfactory 06/06{D 3.20 41.6 4 Hours Percolation Rate Parcel 5 FSA') 3.25 15.62 4 Hours Satisfactory 06/ §/08 Percolation Rate Parcel 6 (deep) 24.30 3.97 4 Hours Satisfactory 06/05/08 Percolation Rate Parcel 7 (deep) 23,60 4.81 4 Hours Satisfactory " 06/05/08 Percolation Rate Note: A satisfactory percolation rate for a"shallow"test is less than or equal to 60 minutes per inch. A satisfactory percolation rate for a"deep"test is less than or equal to 30 minutes per inch. The soils within the sewage disposal areas of the parcels on the subject property have demonstrated a satisfactory percolation rate in accordance with the requirements of the EHD for the use of a standard septic system. Either a shallow or a deep percolation test needs to meet the minimum acceptable percolation rate established by the EHD for a standard test. Septic system construction should follow the San Joaquin County On-Site Wastewater Disposal Standards where applicable. The conclusions of this report are based on the information provided regarding the existing and proposed development, the use of the subject property, and the site conditions as they existed at the time we excavated our test holes and performed the percolation tests. It was assumed that the test holes and percolation test results are representative of the subsurface conditions in the general area. "044 �. 902 Industrial Way•Lodi,CA 95240•209.367.3701 •Fax 209.369.4228 02008 Neil O.Anderson&Associates,Inc