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Mr. Mark Lewis, Esq. <br /> March 4, 2004 <br /> Page 2 <br /> Section 2.0, Operable Unit 1 <br /> • Please replace the multiple references to the statement "...There are no <br /> compounds of concern for Area (10, 11, or 20) groundwater..." with a statement <br /> that indicates that based on the analytical results for groundwater samples <br /> collected during site investigations, constituents of concern were not identified at <br /> concentrations that required cleanup. <br /> Section 4.1 Selected Remedy for North Shore Parcels <br /> • For clarification purposes, please provide a description of the role of the <br /> RWQCB, or the San Joaquin County Environmental Health Department, in <br /> overseeing cleanup of the underground fuel tank-areas containing contaminated <br /> soil and groundwater at the Site. <br /> Section 4.2 Excavation Confirmation Sampling <br /> • The reference to 44 "hot spots" may or may not be accurate based upon <br /> comments provided under the section of this letter titled Figures 3 through 6, <br /> Area RAP Excavations. <br /> • In the second bullet point of this section, please define the term RI. <br /> Section 4.2.1, Sidewall Sampling <br /> • Please identify the criteria or decision making process that will be used to <br /> determine when a composite sample will be collected. <br /> Section 5 0 Materials Handling Transportation, and Disposal Plan <br /> • DTSC recommends that an informational copy of the Transportation Plan be <br /> provided to the City of Stockton's Public Works Department, the Police and/or <br /> Fire Department. <br /> • DTSC recommends that the City of Stockton Public Works Department or other <br /> responsible agency be contacted about excavation/grading at the Site to <br /> determine if any permits are required. <br /> • Please include a reference to conducting the Underground Service Alert <br /> procedure prior to initiation of any subsurface activities. <br />