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it <br /> w ualit� (Pontrol nnc. <br /> .e <br /> - MAIN OFRCE <br /> ❑1295 NORTH EMERALD.Bf..AG.O•MODESTO.CAUFORKM 95351•PHONE(209)527-4910 <br /> BRANCHES <br />.� STOCIcTON(209)466-8378 • MERGED(209?723.2125 <br /> G90-661 January 27, 1991 <br /> Q <br /> FOR: Campbell Charitable 'Trust <br /> ` Donna Shatswell <br /> sol West "F" Street <br /> Oakdale, CA 95361 <br /> r-� <br /> PROJECT: Deck Road Subdivision <br /> Deck Road, Escalon <br /> San Joaquin County <br /> SUBJECT: Percolation Testing <br /> On January 9, 1991, representatives of Quality Control <br /> Inspection, Inc. prepared percolation test holes using a truck <br /> mounted drill rig in the area of the proposed; Deck Road <br /> subdivision_ The percolation test holes were located as selected <br /> by a member of our engineering staff. This percolation test was <br /> performed at the request and authorization of Donna Shatswell for <br /> the Campbell Charitable Trust. <br /> The test holes were presaturated 24 hrs before percolation <br /> testing commenced on January la, 1991- The percolation testing <br /> was conducted according to San Joaquin County Department of <br /> Environmental. Health regulations and was witnessed and observed by <br /> f Hector Castro from the County Department of Environmental Health. <br /> A total of 6 percolation holes were prepared at various <br /> locations. At each of three test locations, a shallow (4 feet) <br /> deep test hole and a deeper (approximately 14 feet) test hole were <br /> drilled using 8" diameter solid stem auger. The shallow test hole <br /> was drilled and tested as requested by the County, and the deeper <br /> test hole was drilled and tested in order to demonstrate that a <br /> permeable strata does exist. The percolation test holes were <br /> sleeved with 4" diameter perforated pipe to prevent a potential <br /> cave-in, thus insuring test hole integrity. Gravel was added to <br /> the bottom of the hole and placed in the annular space between the <br /> perforated pipe and the bore hole. Please find attached, the Field <br /> Percolation Testing Report (signed by the San Joaquin County <br /> representative) , indicating the test hole location, percolation <br /> ti <br /> rate and recommended sewage disposal area. <br /> QUA T CO TROL INSPECTION, INC. <br /> Jes Wry, P.E. <br /> JW/dj <br /> cc: 3 Client <br /> { F r0 ert of our clients for their exclusive use.Any publication or reproduction of statements,conclussores�!ezttaCts from or <br /> Our repofts and letters are submitted as the confidentialp p y <br /> regarding our reports or letters is reserved.contingent upon the written aufl9anabort of Quality Control Inspection.Inc. <br />