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o5-Apr-Oa <br /> lqw <br /> EXPLANATION EAST FREMONT STREET <br /> Groundwater Monitoring Well - f <br /> Groundwater elevation contour in — — — — — — — — — _ _ _ — — — — — — — — <br /> tees referenced to mean sea level --------------- <br /> ` (MSL) Arrows indicate -25 g7 l <br /> approximate groundwater flow (3,000) Planter <br /> direction (<250) C7 <br /> -2597 Groundwater elevation in feet I <br /> I <br /> (3,000) Benzene concentration in ppb ,�� _2598— <br /> (<Z50) <br /> 2598— <br /> (<Z50) MTBE concentration in ppb ,%�' �,.\ 1 Existing I <br /> by EPA Method 8020 ' ' USTs <br /> <x=Not Detected at detection limit of x <\�'� \�^� <br /> Note Wel is S-I through S-3 were �`��'� I I <br /> g ,' , 'Former USTs,'` �� r f <br /> sampled on 01-Feb-00 - _-- _-- Canopy I <br /> (typ) <br /> * Analyzed by EPA Method 8260E �`�26 D0, \,';> S-4 <br /> Approximate hydraulic gradient=0 0002 `. ,�'`�.�. ,'%' +-2601 I <br /> to 0 0008 (<0 50) <br /> Waste Oil Tank O (<0 500)* I � <br /> S-3 Q <br /> -2602 <br /> (<0 50) <br /> <2 5 <br /> Station Building and <br /> Lube Bays ------ ------------------------ W <br /> IZ <br /> I a <br /> Dispenser Island I L: <br /> ' (typ) <br /> Cinder <br /> Block Block wall 0o I <br /> N_ <br /> S-2 I <br /> + -2599 <br /> (<0 50) <br /> I <br /> (<2 5) <br /> ANCON STREET I <br /> Scale <br /> FIGURE <br /> 0 15 30 64 <br /> 1 Inch=30 Feet 2 <br /> 0 <br /> Shell-branded Service Station Groundwater Contour/ <br /> 2494 East Fremont Street Chemical Concentration Ma <br /> Stockton, California p <br /> Incident No 98996181 C A M B R I A February 18, 2000 <br />