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e . <br /> Associated Sails Analysis <br /> January 17, 1991 <br /> Job No. 171-90 <br /> WT 1 <br /> Steve Schnider <br /> San Joaquin County JAN 17 1991 <br /> Dept. of Health Services <br /> P.O. Box 2009 Ci 1VIRONME�T' <br /> Stockton, CA 95201 FFRhiflT/SE r'�liSAiT1� <br /> l7V10ES <br /> SubJect: HMC Location #100876 loc.lted at <br /> i <br /> 1012 W. Yosemite, .tiOCa, CA <br /> Dear Steve: <br /> The work plan as submitted by Harken Marketing Company is hereby <br /> sealed and approved with the following i•cems noted as modifications <br /> to the work plan that are to be implemented by Consolidated Testing <br /> Laboratories personnel (drilling crew) in the field: <br /> 1 . Field screening of soil samples for hydrocarbon <br /> contamination will be performed using an HNU 101 <br /> photvionization Meter. <br /> 2. Soil sampling procedures will include the use of teflon <br /> tape in place of aluminum foil . <br /> 3. The annular space between the well casing and the <br /> borehole will be filled with a sand pack as described to <br /> a point approximately 1 foot above the top perforation in <br /> the screen followed by a 3 foot bentonite Clay plug. The <br /> remaining annular space will then be backfilled with neat <br /> cement to a few inches below grade. <br /> Sincerely, <br /> W6CATED SOILS ANALYSIS, INC 51 <br /> 1 ' KSOC. <br /> NCQ�'n� <br /> David Crane <br /> Registered Geologist No. 4639 <br /> DC: lme <br /> i 1141 Batavia Ct. Tulare, Ca 274 (209) 688-1011 <br /> a=min <br /> a� <br />