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Rot <br /> ualityControl inspection Inc. <br /> QCi <br /> MAIN OFFICE <br /> 7� �0 1295 NORTH EMERALD,BLDG.O•MODESTO,CALIFORNIA 95351 •PHONE:(209)527-4940 <br /> BRANCHES <br /> STOCKTON(209)466-8378 MERCED(209)723-2425 <br /> QCI#: G-91-727 December 9, 1991 <br /> FOR: Carl & Nancy Serpa <br /> 29554 Grooms Road <br /> Oakdale, CA 95361 <br /> PROJECT: Parcel 2 of A.P.N. 207-29-19 <br /> 29554 Grooms Road <br /> San Joaquin County <br /> SUBJECT: Percolation Testing <br /> On November 16, 1991, representatives of Quality Control <br /> Inspection, Inc. prepared percolation test holes using a truck <br /> mounted drill rig at the address of the above-referenced project. <br /> The percolation test holes were located in accordance to the <br /> proposed placement of the residential structure. This percolation <br /> test was performed at the request and authorization of Mrs. Nancy <br /> Serpa, and Mr. Roger Rumph, Civil Engineer. <br /> The test holes were presaturated 24 hrs before percolation <br /> testing commenced on November 20, 1991. The percolation testing <br /> was conducted according to San Joaquin County Department of <br /> Environmental Health regulations and was witnessed by a <br /> representative of the San Joaquin County Department of <br /> Environmental Health. <br /> Two percolation holes were prepared in the proposed leaching area <br /> locations for the subject parcels. At each of the test locations, <br /> a shallow (42 inches deep) test hole and a deeper (8 feet, 8 <br /> inches) test hole was drilled using an 8" diameter solid stem <br /> auger. The shallow test hole was drilled and tested as requested <br /> by the County, and the deeper test hole was located by our <br /> engineering staff for additional percolation data. The percolation <br /> test holes were sleeved with 4" diameter perforated pipe to prevent <br /> a potential cave-in, and thus insure test hole integrity. Gravel <br /> was added to the bottom of the hole and placed in the annular space <br /> between the perforated pipe and the bore hole. <br /> Please find attached, the "Field Percolation Testing Report" <br /> (signed by the San Joaquin County representative) , indicating the <br /> test hole location, percolation rate and recommended sewage <br /> disposal area. <br /> Respectfully submitted, <br /> CONTROL INSPECTION, INC. <br /> Jess Wry, P.E. <br /> Our reports and letters are submitted as the confidential property of our clients for their exclusive use.Any publication or reproduction of statements,conclusions or extracts from or <br /> regarding our reports or letters is reserved.contingent upon the written authorization of Quality Control Inspection,Inc. <br />