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k19 KLEINFELDER <br /> ATTACHMENT A <br /> SCOPE OF WORK <br /> LIMITED SOIL AND GROUNDWATER ASSESSMENT <br /> MANTECA UNIFIED SCHOOL DISTRICT FARM SITE <br /> FORMER UNDERGROUND STORAGE TANK <br /> 2901 LOUISE AVENUE <br /> MANTECA, CALIFORNIA <br /> INTRODUCTION <br /> Klcinfelder is pleased to present this proposal to Manteca Unified School District (M.U.S.D.). <br /> This proposal was developed after correspondence with Mr. John Fultz of M.U.S.D., using <br /> Kleinfelder's current understanding of the site conditions, and is a preliminary understanding of <br /> your desires and requirements. We have prepared this proposal based on information usually <br /> requested in a workplan by the San Joaquin County Public Health Services, Environmental <br /> Health Division (PHS/EHD) and the State of California Regional Water Quality Control Board <br /> (RWQCB). <br /> Kleinfelder is committed to providing a high level of service to its clients, commensurate with <br /> their wants and needs. If a portion of this proposal does not meet the needs of the client, or if <br /> those needs have changed, Kleinfelder stands ready to consider appropriate modifications, <br /> subject to the standards of care to which we adhere as professionals. Modifications such as <br /> changes in scope, methodology, scheduling, and contract terms and conditions may result in <br /> changes to the risks assumed by the client, as well as adjustments to our fees. We look forward <br /> to the opportunity to serve you. <br /> BACKGROUND <br /> Kleinfelder understands that on March 18, 1997 a 250-gallon underground storage tank (UST) <br /> was removed from the Manteca Unified School District farm site, adjacent to a shop building. <br /> Reportedly eight yards of soil was stockpiled from the excavation. Two soil samples were <br /> collected by GeoAnalytical Laboratories of Modesto, California and analyzed for Benzene, <br /> Toluene, Ethylbenzene and Xylenes (BTEX), and Total Petroleum Hydrocarbons as referenced <br /> to Diesel (TPH-D). The two soil samples were collected from the stockpiled soil (SP <br /> within the excavation at a depth of approximately 7 feet below surface grade (bsg). BTEX <br /> constituents were reported, however, TPH-D were detected at 13 mg/kg and 130 mg/kg, rom the <br /> stockpile and from the excavation bottom, respectively. <br /> A "Notice of Responsibility" letter dated January 8, 1998, was sent to Manteca Unified School <br /> District by PHS/EHD, concerning the tank removal site. PHS/EHD requested further assessment <br /> of potential diesel contamination. Manteca Unified School District has requested Kleinfelder to <br /> submit this proposal/workplan to address these concerns. <br /> 20-Y P 8-1G1/2018 P 179 Page A-I <br /> © 1998,Kleinfelder, Inc. June 22, 1998 <br />