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The deep holes were prepared per County Standards. The deep holes were drilled to a depth of approximately 22-24 feet. A 2 inch diameter PVC pipe with perforations on the bottom was used to measure the drop of water in the percolation test boring. Approximately 1-2 inches of "pea gravel" were placed in the bottom of test boring; the PVC was installed on top of the gravel. about 6 inches of "Pea gravel' was placed in the annular space around the pipe. 5.3 Description of soil lithology as noted from test pit by appropriate professional using industry standard protocol: The soil in this area is classified as Bruella sandy loam, San Joaquin loam, Rocklin fine sandy loam, and Exeter sandy loam stated in the Soil Survey of San Joaquin County, California as provided by the United States Department of Agriculture, Soil Conservation Service. 5.4 Discussion of soil lithology as related to future onsite septic uses: The aforementioned soil types listed above have moderate to low permeability thus percolation rates varied as demonstrated by the mixed results for all three parcels. (See Appendix). 6.0 PERCOLATION TEST INFORMATION SECTION 6.1 Site Map Showing the location, with concise and accurate dimensions of the percolation test holes on the parcel: See Appendix. 6.2 The Minimum Number of Shallow and Deep Percolation Tests was Performed for Each Parcel: Three shallow percolation test holes were prepared, one on each proposed parcel. Three deep holes were also prepared due to the characteristics of the soil and the low permeability rates. 6.3 Description of the Date, Time and Protocol Used to Prepare the Test Hole, Including Depth and Dimensions of Hole, Preparation of Hole, and Depth of Water Used to Presoak (Minimum 12 Inches): The shallow test holes were excavated to a depth of 36 inches and 8 inches in diameter and backfilled with 1-2 inches of "pea gravel' in accordance with County Standards. The shallow holes were prepared by staff of Neil O. Anderson & Associates on January 26, 2006 and the 24 hour presoak period was started. The holes were filled with 12 inches of water over the gravel and at this time. Environmental Health Department was notified of the start of the test. The deep holes were excavated to a depth of approximately 22-24 feet, respectively, and backfilled with 1-2 inches of "pea gravel' in accordance with County Standards. The deep holes were also prepared by staff of Neil O. Anderson on January 26, 2006 and the 24 hour presoak period was started. A 2 inch PVC pipe with perforations at the bottom was installed into the test hole and gravel was poured in the annular space. 6.4 Description of the Date, Time and Condition of the Test Hole After the 24 -Hour Soak Period (Hole Still Intact, Hole Dry, Depth to Water Remaining in Hole, Etc.): On January 27, 2006 the three our shallow test holes were dry. Six inches of water was added to the holes and the holes were deemed suitable to continue. Two of the shallow tests passed the minimum County requirements. 3 c9047Moil Reoorl