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KAPREAIIAN ENGINEERING <br /> I NCORPO RATED <br /> KEI-P91-0202 .P4 <br /> April 13 , 1993 <br /> PROPOSAL TO <br /> UNOCAL CORPORATION <br /> for the <br /> Unocal Service Station #6015 <br /> 601. E. Kettleman Lane <br /> Lodi, California <br /> GROUND WATER MONITORING, SAMPLING AND ANALYSIS <br /> INTRODUCTION <br /> Per the recommendations described in Kaprealian Engineering, Ines. <br /> (KEI) report (KEI-P91-0202 . QR4) dated April 13 , 1993 , KEI proposes <br /> the following work plan. <br /> PROPOSED TASK <br /> 1. Monitor all existing wells on-site on a quarterly basis. <br /> Record the elevation of the water table and any abnormal <br /> conditions noted during inspection, including the <br /> presence of free product. <br /> 2 . Purge and sample ground water from all monitoring wells <br /> on a semi-annual basis, and analyze for total petroleum <br /> hydrocarbons as gasoline and benzene, toluene, xylenes, <br /> and ethylbenzene. Prior to sampling, the water table <br /> elevation will be recorded as well as the presence of any <br /> free product or sheen. <br /> 3 . Prepare quarterly technical reports summarizing the field <br /> activity water sampling and analyses with discussion and <br /> recommendations. <br /> 4 . Meetings, File Review, and Correspondence. <br /> The purging of ground water and sampling should continue for 12 <br /> months. This proposed monitoring and sampling program should be <br /> re-evaluated after 12 months. <br /> 2401 Stanwell Drive 5uue 400 <br /> Concord Californua 94520 <br /> Tel 510 602 5100 Fax 510 6117 0602 <br />