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Table 1 <br /> HISTORICAL GROUNDWATER ANALYTICAL RESULTS AND MONITORING DATA <br /> CHEVRON SERVICE STATION NO 9-0342 <br /> 1347 SOUTH EL DORADO,STOCKTON CALIFORNIA <br /> WELL ID/ ETHYL--- FECAL <br /> ELEVATION BENZENE TOUIENE BENZENE <br /> S TPH-G COLI>=ORM Ltz �_ <br /> T WYE <br /> (TOC DATE b b b b in n t lest <br /> MW-1 <br /> 1166 08/20/90 0 5 ND NO NO 810 - 4059 000 -28 93 <br /> 01/09/91 NO 0.8 NO ND 180 - 4286 000 -3120 <br /> 04/05/91 ND ND ND 10 96 -- 4335 000 -3169 <br /> 07/25/91 ND NQ NO 0.7 68 4433 0 OD -8267 <br /> 10/29/91 ND NO ND NO : NO -- 4526 000 -3360 <br /> 01/14/92 ND ND NO ND NO -- 4529 000 -3363 <br /> 05/04/92 __ 4387 000 -3221 <br /> 07/22192 ND ND NO ND 829 4542 000 -33.76 <br /> 10/26/92 -- - -- -- -- - 4696 000 -3530 <br /> 02116193•. - <br /> MW-2 1 05117/930* <br /> 1209 08/20/90 NO NO ND NO NO -- 4081 000 -2872 <br /> 01/09/91 NO NO NO: NO NO -- 4298 000 -3089 <br /> 04/05/91 ND ND NO ND ND -- 4350 0 DO -3141 <br /> 07/25/91 ND ND ND ND ND - 4457 000 -3248 <br /> 10/29/91 NO NO NO NO NO -- 4548 000 -3339 <br /> 01/14/92 NO ND ND ND ND - 4547 000 —3338 <br /> 05/04/92 __ 4410 000 -3201 <br /> 07122/92 ND ND NO NO NQ - 4567 0 D0 -3358 <br /> 10/26/92 -- -- -- -- -- 4720 000 -3511 <br /> 02/16193 NO NO ND ND ND - 4598 000 -33.89 <br /> 05/17/93** -- -- - -- `- -- -- - - <br /> MW-3 <br /> 1191 08/20/90 890 9 68 14 15,000 == 3941 000 -2750 <br /> '01/09191 18 23 2.2 4.9 380 - 4313 0 OD -3122 <br /> 04/05/91 8 07 1 3 170 4364 000 -3173 <br /> 07/25/91 15 ND 10 25 1 SO ND 4457 000 -32.66 <br /> 10/29/91 6S 08 25 35 360 -- 4551 000 -33 60 <br /> 01/14/92 14 38 68 95 780 - 4552 0,00 -.3361 <br /> 05/04/92 57 37 11 26 520 -- 4413 000 -3222 <br /> 07/22/92 ND ND 55 44 230 - 4565 000 -3374 <br /> 10/26/92 30 05 20 30 450 - 4718 000 -35 27 <br /> 02116/93 NO 1.0 160 140 1,500 -- 4607 0 OD -3416 <br /> 05/17/93 73 19 37 85 1,000 -- 4320 000 -3129 <br /> MW-4 <br /> 1181 07/25/91 NO ND NO NO ND 220 4456 0 DO -3275 <br /> 10/29/91 ND ND NO ND ND -- 4552 000 -3371 <br /> 01/14/92 ND NO ND ND NO - 4551 000 -3370 <br /> 05/04192 22 NO 06 17 120 -- 44 D9 000 -3228 <br /> 07/22/92 ND NO NO NO NO -- 4564 000 -3383 <br /> 10/26/92 ND ND NO ND ND -- 47 20 000 -36,39 <br /> 02/16/93 NO ND NO ND ND -- 4607 000 -3426 <br /> 05/17/93 1 461 101 48 , 28 320 - 4390 0 00 -32 09 <br /> EXPLANATION <br /> All elevations are given in feet relative to mean sea level ppb= parts per billion or micrograms per Ider jig/l. <br /> TPH-G =Total Petroleum Hydrocarbons as gasoline(ppb) mpn= most probable number per 100 milliliter <br /> = Chromatograph does not match typical gasoline pattern NO = Not detected at or above the minimum quantitation limit <br /> '• = Well could not be located -- = Not analyzed,not sampled <br /> SP = Separate-phase petroleum hydrocarbons NOTE See laboratory reports for minimum quantitation limit <br /> DTW= Depth to water MW-3 and MW-4 are sampled quarterly, MW-1 and MW-2 <br /> SPT= Separate-phase hydrocarbon thickness are sampled in 1st and 3rd quarter <br /> WTE=Water table elevation <br /> TOC =To of casin <br /> GARTABI WKS <br /> I'!L <br /> _J�J� GROUNDWATER <br /> LLI TECHNOLOGY <br />