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0 ap - ­­.,, <br />California Regional Water Quality Control Board <br />Central Valley. Region .. <br />Winston H. Hickox <br />Secretaryfor <br />Environmental <br />Protection <br />7 September 2000 <br />Steven T. Butler, Chair <br />Sacramento Main Office <br />Internet Address: http://www.swreb.ca.gov/—rwgcb5 <br />3443 Routier Road, Suite A, Sacramento, California 95827-3003' <br />Phone (916) 255-3000 • FAX (916) 255-3015 <br />Mr. Eric Jenks <br />John Taylor Fertilizers Company Inc. <br />841 West Elkhorn Blvd. <br />Rio Linda, CA 95673 <br />Gray Davis <br />Governor <br />REVIEW OF WELL INSTALLATION REPORT, DRAFT MONITORING AND <br />REPORTING PROGRAM, JOHN TAYLOR FERTILIZERS, STOCKTON, SAN.IOAQLILY <br />COUNTY <br />I have reviewed the 14 July 2000 Well Installation Report (report) prepared for John Taylor <br />Fertilizers Co., by GeoSyntec Consultants. The report describes the installation of monitoring <br />wells MW -1 through MW -5, the first groundwater monitoring event, and the results of a well <br />survey encompassing a 2,000 -foot radius of the site. I review the report below and enclose a <br />draft Monitoring and Reporting Program (MRP) for your review and comment. <br />Well Installation Report <br />The report responds to my 13 March request for a fingerprint of the unidentified non -diesel <br />hydrocarbon compound that eluted in the diesel range noted -in GeoSyntec's 30 January 2000 Site <br />Investigation Report. Although the compound remains unidentified, GeoSyntec discusses <br />products that the non -diesel compound could be weathered fuels, partially biodegraded petroleum <br />compounds, or humic acids. No fuel products were identified in the monitoring well samples, <br />and I agree that the question of what the product is or was is not germane to the investigation and <br />remediation. <br />In reference to my 13 March request to identify the discharge point of the on-site storm drain, <br />GeoSyntec determined that stormwater has been discharged to the City of Stockton's Municipal <br />Separate Stormwater Collection System since the facility was first constructed. This alleviates <br />my concerns about an off-site discharge point. <br />The report includes a well survey that found that wells downgradient from the facility are <br />predominately monitoring wells, and upgradient wells are primarily domestic wells. It does not <br />appear that any of the upgradient wells would be suitable for an upgradient monitoring well, due <br />to the depth of the wells and unknown screen intervals. It also does not appear that domestic <br />wells have been affected by site activities, since they are upgradient of the facility. <br />California Environmental Protection Agency <br />�a Recycled Paper <br />