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Sacramento Regional Office <br /> INTERNATIONAL t 0 ;t ' F;t' rr -i 3634 Backseater Street <br /> �" '`'� # � +tai_(tt Mather.California 95655-4108 <br /> TECHNOLOGY .�.7. r t»,�, <br /> CORPORATION i_(,[CE 916.361-7673 <br /> FAX:916-361-3047 <br /> f <br /> May 10, 1996 <br /> Mr. Harlin Knoll, Sr. R.E.H.S. <br /> San Joaquin County <br /> Public Health Services Environmental Health Division <br /> 304 E. Weber Avenue, Third Floor <br /> Post Office Box 388 <br /> Stockton, CA 95201-0388 <br /> Re: Workplan for Former Fabricare Site <br /> 711 South San Joaquin Street, Stockton, California <br /> Dear Mr. Knoll: <br /> IT Corporation (IT) is pleased to provide you with this workplan to perform environmental site <br /> .closure services at the above-referenced site. The proposed scope of work outlined in this <br /> correspondence is based on your April 24, 1996 letter to Marian Cecile Mohr Fry and on our <br /> site visit-on April'26, 1996: <br /> .. ,; , .�=i,-.:: . <br /> During'the site;visit, dike'(3);groundwater 1n tloring wells were_found'oh the property. The <br /> wells were`opened sand measured for depth=to-water and' total depth. The rvells are accessible <br /> and appear to be fully functional'. <br /> As requested, the groundwater from these three wells will be sampled for the possible presence <br /> of gasoline hydrocarbons. If laboratory results from the groundwater samples indicate that <br /> gasoline hydrocarbons are not present, then a formal request for site closure can be made and <br /> the wells can be abandoned in-place. To accomplish these work steps, IT will perform the <br /> following scope of work consisting of three tasks. <br /> SCOPE OF WORK <br /> Task 1. Groundwater Sampling <br /> The three on-site groundwater monitoring wells will be monitored and sampled. An IT <br /> Engineering Technician will visit the site and for each of the wells will measure depth-to- <br /> groundwater and -total depth,' purge at least three well volumes while measuring the pH, <br /> temperature,..electricai conductivity and turbidity of the effluent, and sadiole in-laboratory- <br /> supplied'glassware-.' Samples will be transported under Chain-of-Custody`manifest to a state of <br /> California certified analytical laboratory for analysis of Total Petroleum Hydrocarbons (TPH) <br /> as.gasoline and benzene, toluene, ethylbenzene and xylenes (BTEX) by EPA Modified Methods <br /> 801518020. <br /> IT Corporation is a wholly owned mihnidiary of International Technology corporation <br />