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Supplemental Soil Suitability Study 2 <br /> SOIL PROFILE: The deep percolation test hole excavations, Test Hole Nos. 1A and <br /> 1C, dug to a maximum depth of 25'-0011 , are used for Soil Profile <br /> Reporting. See the attached "Percolation Data Sheet" and "Parcel <br /> Map" as well as the text of this report for specific soil layer, <br /> character and location details. Refer also to the soil profile <br /> analysis contained in the Soil Suitability Study, dated 2-1-92, <br /> Parcel Map No. MS-91-67, Parcel Nos. 1 and 2, for the John and <br /> Wally Borges property, which was performed at a much shallower <br /> depth below the ground surface. <br /> WELL WATER ANALYSIS: See the three "FGL Environmental" letters, one dated January <br /> — 7T1992, and two others dated February 3, 1992, as well as the <br /> text which is contained in my Soil Suitability Study, dated <br /> 2-1-92, Parcel Map No. MS-91-67, Parcel Nos. 1 and 2 for the John <br /> and Wally Borges property at 26246 North Bruella Road, Galt, <br /> California 95632. <br /> RECOMMENDATIONS: Even though the soil porosity test result for Parcel No. 2 in <br /> this Supplemental Soil Suitability Study which is covered in the <br /> Soil Suitability Study, Dated 2-1-92, for Parcel Map No. MS-91-67, <br /> Parcel No. 1 , indicates the soil will accomodate a leach field <br /> installation, the varying nature of the soils encountered within <br /> this 40 acre parcel indicates that a 12,000 square feet minimum <br /> disposal area plus pits would be appropriate at the time of con- <br /> struction, especially if the sewage system is opted to be con- <br /> structed at a location different than that tested at and shown <br /> in the Soil Suitability Study dated 2-1-92. Soil porosity does <br /> not permit the use of a subsurface horizontal leach field for <br /> Parcel No. 1 of this Supplemental Soil Suitability Study since the <br /> 3-footdepth percolation test failed to meet the San Joaquin <br /> Public Health Service, Environmental Health Division minimum re- <br /> quirements. However, the deep percolation test did conform to <br /> San Joaquin County Public Health Service, Environmental Health <br /> Division minimum requirements, and effluent is recommended to be <br /> discharged into a 12,000 square feet minimum disposal area in <br /> combination with subsurface horizontal leach lines into seepage <br /> pits at a maximum depth of twenty-five (25) feet. <br /> C. Ryan Voohees MS-92-84 <br />