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Mr. Jim Landcaster 14 August 2002 <br />Woolsey Oil, Inc 2 <br />detect at the MRP -listed MDLs (<50 µg/L) for two additional quarters (4a' Quarter 2002 and Vt Quarter <br />2003), then TPH-d analysis may be discontinued for MW -6. <br />4. We concur with the request for semi-annual reporting. <br />5. We are concerned that the vertical groundwater gradient reversed to the downward direction in July <br />2002. Therefore, we have changed deep monitoring well MW -1D sampling frequency from semi-annual <br />to quarterly monitoring. <br />6. Monitoring well MW -8 has never been sampled, due to the presence of free product. Free product <br />thickness has been reduced to a sheen by hand bailing. When free product is no longer present in <br />MW -8, quarterly sampling for all constituents shall begin. <br />If you have any questions, you may contact James Barton at (916) 255-3050. <br />LESLIE S. LAUDON <br />Chief, Federal/Private Site Cleanup Unit <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 />