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[4] Cont. <br /> Central Valley Regional Water Quality Control Board (RWQCB) with <br /> regard to the current status of the subject property and future <br /> confined animal waste management. A proposal to the RWQCB <br /> outlining remediation and protection measures of the subject <br /> property soil and groundwater can be found in the Appendix. A <br /> Letter of Approval from Mr. Louis Pratt, Land and Water Use Analyst <br /> from the RWQCB, follows the proposal in the Appendix. <br /> The predominate soil types encountered during percolation test <br /> drilling was silty clays, silty sands and inorganic clays of medium <br /> to high plasticity. However, a sand-silt strata was infiltrated <br /> at approximately eight feet on parcels #2 and #3 . A sand-silt <br /> strata was also encountered at approximately 11 feet on parcel #4 . <br /> It appears that this sand strata is sloping downward in a southerly <br /> direction. <br /> The percolation tests conducted by Quality Control Inspection, Inc. <br /> were performed in accordance to San Joaquin Environmental Health <br /> Department regulations. A copy of the percolation test results can <br /> be found in the Appendix. <br /> The percolation tests conducted on April 10, and April 21, 1992 for <br /> the four parcels are discussed below: <br /> Parcel #1 which contains the SFR, had percolation rates for both <br /> the shallow (4211) and deep test borings (6 ' 1011) of 5 min/in and <br /> 10 min/in, respectively. It is anticipated that the SFR and <br /> existing septic system will remain as is. <br /> The shallow and deep test borings drilled for parcel #2 were <br /> subsequently destroyed by cows that were grazing on this parcel . <br /> Consequently, a new 42" test boring was drilled and the percolation <br /> testing conducted on April 21, 1992 . The results indicate that <br /> this 42" test boring had a percolation rate of 13 min/in. <br /> 3 <br /> Q- <br /> C-ntrol Inspection <br />