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t1 <br /> May 17, 1996 <br /> ARCO QUARTERLY GROUNDWATER MONITORING REPORT T <br /> Facility No 02076 Address 800 Kettleman Lane, Lodi, California <br /> ARCO Environmental Engineer Kyle Christie <br /> Consulting Co/Contact Person EMCON/Jay R Johnson <br /> Consultant Project No 20805-144 003 <br /> Primary Agency/Regulatory ID No __Mary Meays, San Joaquin County_Public Health Services <br /> WORKED PERFORMED THIS QUARTER (First- 1996) <br /> 1 Performed quarterly groundwater sampling <br /> 2 Compiled and evaluated groundwater monitoring data <br /> WORKED PROPOSED FOR NEXT QUARTER (Second- 1996) <br /> 1 ARCO will continue to perform quarterly groundwater monitoring The next sampling event is <br /> tentatively scheduled for May 1996 <br /> Current Phase of Project Monitoring <br /> Frequency of Groundwater Sampling _ Quarterly <br /> Frequency of Groundwater Monitoring Quarter) <br /> Is Free Product (FP) Present On Site No <br /> FP Recovered this Quarter None <br /> Cumulative FP recovered to Date None <br /> Approximate Depth to Groundwater 62 10 to 63 10 <br /> Groundwater Gradient Northwest <br /> 001 <br /> DISCUSSION (optional) <br /> Results of this monitoring event indicated that levels of dissolved gasoline hydrocarbons are consistent <br /> with levels detected during previous sampling events Groundwater gradient is consistent with previous <br /> sampling events Groundwater elevation decreased approximately 0 63 foot from the previous sampling <br /> event (November 1995) <br /> ATTACHMENTS <br /> • Table 1 Groundwater Monitoring Data <br /> • Figure 1 Site Location Map <br /> • Figure 2 Generalized Site Plan <br /> • Figure 3 Groundwater Contour Map (February 2, 1996) <br /> • Appendix A Sampling and Analysis Procedures <br /> • Appendix B Laboratory Analysis Reports and Cham-of-Custody Records <br /> cc Elizabeth Thayer, RWQCB <br /> SA0,N TjM805\08051440 3AS-95\cjb 1 <br /> I <br />