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First Quarter 1993 Monitoring Report <br /> Knowles property, Stockton, CA <br /> Project No W0327 00 <br /> Page 2 <br /> Laboratory Results <br /> Laboratory analysis indicated that the sample collected from well MW-1 contained benzene (190 <br /> ppb), toluene (24 ppb), ethylbenzene (40 ppb), xylenes (32 ppb), and TPHG (2,400 ppb) The <br /> sample collected from well MW-2 indicated elevated levels of toluene (2 3 ppb) and TPHG <br /> (1,100 ppb) All other analytes in MW-2 were not detected at or above method detection limits <br /> (nondetectable) The sample collected from well MW-4 was reported to contain TPHG (430 <br /> ppb) The sample collected from well MW-5 was reported to contain benzene (1,600 ppb), <br /> toluene (800 ppb), ethylbenzene (280 ppb), xylenes (1,400 ppb) and TPHG (25,000 ppb) The <br /> samples collected from wells MW-6, MW-7 and MW-8 did not contain any analytes at or above <br /> method detection limits The laboratory results are summarized in Table 2 The laboratory data <br /> sheets, chain of custody documentation, and laboratory QA/QC are included in Attachment 2 <br /> RESNA will continue with the quarterly sampling program, the next round of sampling is <br /> scheduled for June 1993 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 /> Lois Frantz <br /> Geologist <br /> Lane <br /> Project Geologist <br /> /q-"� ///-) —"'� <br /> Gregory P Stahl <br /> CA Registered Geologist No 5023 <br /> Attachments <br /> pc* Mr Ted Job <br /> Mr Ted Knowles <br /> QRTERLYIIQR-1993 FNL <br />