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J: ZSJ WAt L <br /> Working To Restore Nature <br /> (DHS Cert #1210) for analyses of total petroleum hydrocarbons as gasoline (TPHg) and <br /> benzene, toluene, ethylbenzene, and xylenes (BTEX) utilizing EPA methods 5030/8015 and <br /> 8020, respectively Sample collection was conducted in accordance with the site Quality <br /> Assurance/Quality Control Plan (Appendix II, October 25, 1990 WorkPlan) <br /> LABORATORY RESULTS <br /> Laboratory analyses detected dissolved petroleum hydrocarbon constituents in samples collected <br /> from well MW-4 Water samples collected from wells MW-1, MW-2, MW-6, MW-7, and <br /> MW-8 contained no analytes at or above the method detection limits Analytical results of <br /> samples collected in December 1993 indicate that dissolved petroleum hydrocarbon constituents <br /> in groundwater are significantly reduced from August 1993 This reduction may be a result of <br /> the observed nse in the water table beneath the site, which averaged 3 15 feet Table 2 <br /> summarizes groundwater analytical data Attachment 2 contains laboratory data sheets and <br /> chain-of-custody documentation <br /> RESNA will continue with the quarterly sampling program; the next round of sampling is <br /> scheduled for March 1994 If you have any questions or comments regarding this report, please <br /> contact John Lane at (209) 838-3507. <br /> . Respectfully, <br /> RESNA Industries Inc. <br /> Jin Lane <br /> ject Geologist <br /> Gregory P. Stahl <br /> CA Registered Geologist No 5023 <br /> MRM/ggk <br /> Attachments <br /> pc Mr. Pat Riddle <br /> Mr. Ted Knowles <br /> 1500381QRnMLYI4QR-1993 FNL 2 <br />