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w■s t��� �� twi �� +�f a•� � tll� rww� �� t� tl� ��� tl� <br /> Quarterly Groundwater Monitoring, Fourth Quarter 1993 February 2, 1994 <br /> Quik Stop Market No 132, Stockton, California F7132 93 <br /> TABLE 1 <br /> CUMULATIVE RESULTS OF GROUNDWATER SAMPLING AND ANALYSES <br /> Ethyl- Total Fecal Well Depth to Groundwater <br /> Sample Date TPHg Benzene Toluene benzene Xylenes MTBE Coliform Elevation Groundwater Elevation <br /> Number Sampled (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) B/100 ml (ft above MSL) (feet) (ft above MSL) <br /> MW-5 09/23/93 88 <050 <050 <050 <050 NR NR 338 1335 -997 <br /> MW-SA 11/10/93 100 <050 055 <050 <050 NR NR 1388 -1050 <br /> MW-5B 11/10/93 <50 <050 O-56 <050 11 NR NR NA NA <br /> MW-5 12/17/93 <50 <050 <050 <050 <050 NR NR 1320 -982 <br /> MW-6 12/21/92 <50 <050 <050 <050 <050 NR <1 358 1603 -1245 <br /> 03/17/93 <50 <050 <050 <050 <050 NR NR 1324 -966 <br /> 06/18/93 <50 <050 <050 <050 <050 NR NR 1244 -886 <br /> 09/23/93 <50 <050 <0 50 <050 <0 50 NR NR 1352 -994 <br /> 12/17/93 <50 <0 50 <0 50 <050 <0 50 NR NR 1345 -987 <br /> MW-7 12/21/92 <50 <050 <050 <050 <0.50 NR <1 322 1602 -1280 <br /> 03/17/93 <50 <050 <050 <O50 <050 NR NR 1330 -1008 <br /> 06/18/93 <50 <050 <050 <050 <050 NR NR 1267 -945 <br /> 09/23/93 <50 <0.50 <0.50 <0 50 <050 NR NR 1375 -1053 <br /> 12/17/93 <50 <050 <050 <0 50 <050 NR NR 1352 -1030 <br /> TPHg Total petroleum hydrocarbons as gasoline B/100 ml Bacteria per 100 ml <br /> MTBE Methyl-tert-butyl-ether NR Analysts not requested <br /> ppb Parts per billion (ug/L) <br /> NA Data not available <br /> < Not detected above listed detection limit for the method ft Feet <br /> MSL Mean Sea Level MW-SA Groundwater sample collected before pumping <br /> MW-5B Groundwater sample collected after pumping <br /> Page 4 of 4 <br />