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California Regional Water Quality Control Board <br />Central Valley Region <br />Winston H. Hickoz <br />Secretaryfor <br />Environmental <br />Protection <br />16 December 2002 <br />Mr. Jim Lancaster <br />Woolsey Oil, Inc. <br />166 Frank West Circle <br />Stockton, CA 95206 <br />Robert Schneider, Chair <br />Sacramento Main Office <br />Internet Address: http://www.swrcb.ca.gov/—rwgcb5 <br />3443 ROUtler Road, Suite A, Sacramento, California 95827-300TD <br />rll <br />Phone (916) 255-3000 • FAX (916) 255--- <br />16 <br />55-3 <br />DEC 18 2002 <br />ENVIRUNMENI k-it.'-eLTH <br />PERMIT/SERVICES <br />(a <br />Gray Davis <br />Governor <br />WORKPLAN FOR OFFSITE MONITORING WELL INSTALLATION, WOOLSEY OIL INC., 930 <br />VICTOR ROAD, LODI, SAN JOA QUIN COUNTY, CA <br />We have reviewed the Workplan for Offsite Monitoring Well, Woolsey Oil Inc., 930 Victor Road, Lodi, <br />San Joaquin County, CA (Workplan), dated 26 November 2002, and submitted on your behalf by <br />Ground Zero Analysis, Inc (GZA). The Workplan was submitted in response to our request for a. <br />Workplan to evaluate the methyl tert-butyl ether (MtBE) plume downgradient of MW -3. The Workplan <br />provides: <br />• the proposed location for new downgradient monitoring well MW -11, <br />• the groundwater analytical results of the October 2002 quarterly groundwater monitoring event, <br />and <br />• a Quality Control/Quality Assurance Plan, and <br />• a Site Safety Plan. <br />Comment <br />We concur with the Workplan as presented. Once installed, please add MW -11 to the quarterly <br />sampling, as required of new wells under Regional Board Monitoring and Reporting Program (MRP) . <br />No. R5-2002-0827. Note that the MRP requires sampling of well MW -11 for dissolved lead, in addition <br />to the methods listed in the Workplan: total petroleum hydrocarbons as diesel and gasoline, benzene- <br />toluene-ethybenzene-xylenes, and -volatile organic compounds, including all fuel oxygenates. Please <br />continue to work with your laboratory to ensure that the required method detection limits are achieved. <br />By 1 February 2003, please submit a report describing the installation and sampling of MW -11. <br />I have accepted a new assignment with the Regional Board and will no longer be working on this <br />project. If you have any questions, you may contact Leslie Laudon at (916) 255-3422. <br />i/JAMES L.L. BARTON, R.G./ <br />Engineering Geologist <br />cc: Mr. Harlin Knowll, San Joaquin County Environmental Health Services, Stockton <br />Mr. Patrick Riddle, Law Offices of Patrick D. Riddle, Acampo <br />Mr. Gregory Stahl, Ground Zero Analysis, Inc., Escalon <br />California Environmental Protection Agency <br />�a Recycled Paper <br />