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James L. Tjosvold,P.E. <br /> February 6, 1998 <br /> Page 2 <br /> results of VLEACH modeling done to evaluate what concentration of PNAs could be left <br /> in soils after excavation without affecting groundwater were discussed. These <br /> concentrations will be used to verify when excavation of an area is complete. <br /> The results of the third quarterly sampling conducted in September 1997 were submitted to <br /> DTSC and the RWQCB on October 31, 1997 in the Quarterly Monitoring Report, PG&E <br /> Stockton Former MGP Site, Third Quarter, 1997. <br /> II. Activities Performed During Current Ouarter: <br /> On December 1, 1997, DTSC sent PG&E their comments and the RWQCB's comments on <br /> the DRAP which PG&E had submitted on September 22, 1997. A final DRAP addressing <br /> these comments was submitted to DTSC on December 31, 1997. DTSC approved this <br /> final DRAP for public review and comment on January 7, 1998. <br /> On December 5, 1997, PG&E submitted draft sampling and analysis plans to DTSC for <br /> intrinsic remediation groundwater monitoring and for verification sampling during soil <br /> excavation. A revised version of the draft Fact Sheet was also submitted to DTSC on <br /> December 5, 1997. <br /> Conference calls to discuss the draft Fact Sheet and to prepare for the public meeting were <br /> conducted on October 16, 1997, December 8, 1997 and January 9, 1998. The final version <br /> of the Fact Sheet briefly describes the RI,RA, FS and the DRAP and announces the <br /> proposed Negative Declaration for remediation work at this site,the public comment <br /> period and the public meeting being conducted on the DRAP and the proposed Negative <br /> Declaration. <br /> The results of the fourth quarterly sampling conducted in December 1997 were submitted <br /> to DTSC and the RWQCB on January 30, 1998 in the Quarterly Monitoring Report, <br /> PG&E Stockton Former MGP Site, Fourth Quarter, 1997. <br /> III. Schedule Changes: <br /> The schedule was last revised and sent to DTSC for approval on March 10, 1997. <br /> However, in a conference call on December 8, 1997, changes to the schedule were made <br /> which shifted the public comment period and the public meeting to after the Christmas <br /> holidays. <br /> IV. Activities Planned for Next Ouarter: <br /> DTSC and RWQCB comments were incorporated into the final DRAP which was issued <br /> on December 31, 1997. This DRAP was approved for public review and comment by <br /> DTSC on January 7, 1998. The DRAP was included in a public repository on January 9, <br /> 1998, along with supporting documents, such as the RI, RA and the FS for this site. Also <br />