SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

California Regional Water Quality Control Board ,. `■/ Central Valley Region Steven T.Butler,Chair Winston H.Hickoz j : C6 Gray Davis Secretaryfor Sacramento Main Office Governor Environmental Internet Address: http://w v.sw b.ca.gov/—mgcb5 Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 Phone(916)255-3000•FAX(916)255-3015 17 February 2000 Mr. Mike Nakagawa Nakagawa ol Rico X 6 Q&yt - 2535 Capitol Oaks Drive, Suite 130 Sacramento, CA 95833 REVIEW OF REPORTS, CAL FARM SUPPLY COMPANY,SAN JOAQUIN COUNTY I have reviewed the following reports prepared by IT Corporation (IT), for the bankruptcy trustee, summarizing the progress of the remedial investigation at the former Cal Farm Supply Company facility at 2040 West Washington Boulevard in Stockton. • 30 January 1998 Remedial Investigation/Fourth Quarter Groundwater Monitoring Report • 2 November 1998 Second and Third Quarter 1998 Groundwater Monitoring Report • 14 May 1999 1998 Annual and First Quarter 1999 Groundwater Monitoring Report • 20 January 2000 Second, Third and Fourth Quarters, 1999 Groundwater Monitoring Report The 20 January Groundwater Monitoring Report(QMR)recommends changes to the Monitoring and Reporting Program (MRP) and I predominately concur. Accordingly, I am enclosing a draft revised MRP for your review and comment. My comments on the reports follow. Remedial Investigation/Fourth Quarter Monitoring Report(0h QMR) The 4th QMR presents the results of four monitoring well installations and a summary of the Phase I grab groundwater investigation that was originally presented in the September 1997 Phase I Site Investigation Report. Although the information was presented in text, figures and tables, the figures and tables alone were not sufficient to convey the necessary information, and there were inconsistencies in the report. The utility of future investigative reports will improve if all the sample results are illustrated on figures identifying the sample location, date, and depth. Sample results presented in tables must also have sample dates associated with them, and reported results from pesticide scans must indicate which of the constituents the reported result applies to. Items referenced in the text, such as underground storage tanks, should be illustrated on the figures. The text states that monitoring well 6 (MW-6) was installed adjacent to boring SB-9, yet Figure 2 illustrates MW-6 adjacent to SB-8, and SB-9 is not shown on the figure. Figure 2 also shows MW-6 in a California Environmental Protection Agency Co Recycled Paper