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3.0 PROCEDURLS Monitoiing vv as perioiirieci on Rune 2, 1999 Upon arttval at tht- site, the wells vveie opened and allowed to egualtze with a(mosplieiic pre5suie A Sohnst water level motet vas used to measuie the depth to groundvvati2I in (lie nionaoiing wells Dcpth ineasurenent,, vvere iccorded on the Well Monitor Report (Appends K A) and are sho-wri in fable 1 The total depth of the wells was also measured and iccoided After yvatet depths were measured, a Grundfos Redi-flow 2 st bmeisible pump \vas used to puige nd develop the wells Aopioximately 20 gallons of vvatei weie pumped from each vvell and st( red in plastic barrels Duting puiging a Cotnmg pl-1 coiiductikity, tempeiature gauu�e Vas used to n10d.1A ie these paraniett-ts until they stabilized After pui ai ig nt" ihspo .able bailers wee used !o collect samples from eakh vvell F)ui 40-nil ylal,, ants oise Idi�ei arnhei bottle rete L01ICcted anti placed in a cooled Ice chest and trarsported to Czcelchem for anal s tits The labcv�aror,, icpor+ is included in Appendix B 4 0 RESULTS 4.1 Depth to Grounds-,aw On avciage the depth to groundwater is anout sevon eet less than it was in AuMust 199 5 and about six feet les,, man in Decenvber 1996 (Table 1) Currently, the depth averaL'es 50 8 tent bolo ,, gz-ade 4 2 Groundviater (Gradii nt FIgure 3 illusiraws the pr-sent diiection of giound nater floA In general, the dircctton of flow is to the south at 0 0066 ft/fi Pres, Iously, flovk vv as tc the east 4 3 Ana[3 tical Results The laboratory report is p esentcd in Appendi . 13, and summarized in Table 2 No hvdiocarbons vveie detected iii cith,ei F1 -1 or FT-3 but benze:ie toluene, MTBE, FAMF, and diesel were detected in TT-2 Tii�, v�e,l is located close to and do�vngradient from the former UST cavity Only benze,le 11,I1 been reported In this well previously 5 0 WELL SURVEY 7 he watei well file-, at the California Department of Watei Resouices vveie reviewed on June 21, 1999 and a drive-b,, inspection of the site area was conducted on June 23 Z his survey Identified only one well vvithm a 2,000-foot tadtus of the site This well is located at the Lodi Fire Station. at 705 E Lodi A%,eiite appy axlmately 1900 feet southwest of the site No specific Infornv,tion on