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� l♦ Ir tl� ttttttttti ttz• t� t� �� � �� �� �� �^ �.... �.� - IC <br /> Quik Stop Market No 120 September 10, 1992 <br /> Project No F7120 32 Page 5 <br /> TABLE l <br /> GROUNDWATER MONITORING DATA <br /> Quik Stop Market No. 120 <br /> Stockton, California <br /> Ethyl Total Well Depth to <br /> Sample Sample TPHD TPHG Benzene Toluene Benzene Xylenes Elevation Water <br /> No. Date (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ft) (ft) <br /> MW-1 7/8190 <50 <30 <03 <0 3 <0.3 <0 3 1202 4459 <br /> 12/6/90 <50 <50 <05 <0 5 <0.5 <0 5 4600 <br /> 3/5/91 <50 <50 <0.5 <0 5 <0 5 <0 5 4566 <br /> 4/30/91 <50 <50 <0 5 <05 <0 5 <0 5 4530 <br /> 6/5/91 <50 <50 <0.5 <0 5 <0 5 <0 5 4535 <br /> 9/11/91 <100 <50 <0 5 <0 5 <0.5 <0.5 4704 <br /> 12/18/91 <100 <50 <0 5 <0.5 <0 5 <0 5 4562 <br /> 6/16/92 <50 <50 <0.5 <0 5 <0 5 <0 5 4533 <br /> MW-2 8/61'90 <50 <30 <0.3 <03 <0 3 <0 3 11.74 4480 <br /> 12/6/90 <50 55 4 1 10 2.2 11 4554 <br /> 3/5/91 <50 <50 <0 5 <05 <0 5 <0 5 4521 <br /> 4/30/91 <50 <50 <0 5 <05 <0 5 <0 5 4483 <br /> 6,15/91 <50 <50 <0 5 <05 <0.5 <0.5 4490 <br /> 9/11/'91 <100 <50 <0.5 <0.5 <0.5 <0.5 4658 <br /> 12/18/91 <100 <50 <0 5 <05 <0.5 <0 5 4518 <br /> 6/16/92 <50 <50 <0 5 <0.5 <0.5 <0 5 4487 <br /> MW-3 8/61'90 120 <30 <0 3 <0 3 <0 3 <0 3 1128 4427 <br /> 12/6/90 52 110 32 8 6 3.8 11 4503 <br /> 3/5/91 <50 <50 <05 <0 5 <0 5 <0 5 4470 <br /> 4/30/91 <50 <50 <05 <0 5 <0 5 <0 5 4432 <br /> 615/91 <50 <50 <05 <0 5 <0 5 <0 5 4440 <br /> 9/11/91 <100 <50 <0.5 <0 5 <0.5 <0 5 4609 <br /> 12/18/91 <100 <50 <0 5 <0 5 <0.5 <0 5 4468 <br /> 6/16/92 <50 <50 <0 5 <05 <05 <0 5 4437 <br /> TPHD = Total petroleum hydrocarbons as diesel ppb = Parts per billion(µg/1) <br /> TPHG = Total petroleum hydrocarbons as gasoline <50 = Not detected at or above listed practical quantitation limit for the method <br />