Laserfiche WebLink
Case Closure Summary <br /> Leaking Underground Fuel Storage Tank Program <br /> Fremont Shell Station <br /> 2494 East Fremont Street, Stockton,CA <br /> Ill. Release and Site Characterization Information continued <br /> Maximums Documented Contaminant Coneentrations--!Before and lifter Cleanup <br /> Contaminant: Soil (ppm) Water (ppm) Cont irninant Soil (ppm} Water (PPM) <br /> Before After Before After Before After Before After <br /> TPH(Gas) 19,000 NA 392 64 xylenes 2,200 NA 32.8 '12.0 <br /> TPH(Diesel) X1.0 NA NA PIA MT€31H 1,800 i\lA 6,10 0.011 <br /> [Benzene 30 NA 8.1 0.950 1,2-DCA 0.141 NA 1.640 0.079 <br /> Toluene 1,100 NA 21 3.3 EDB X0.0050 NA 0.350 X0.0005 <br /> Ethyi€Benzene 460 NA 83 1.7 Lead 19 NA NA NA <br /> Comments: The `Soil]Before'concentrations for TPH (Gas),toluene,ethylbenzene and xylenes are from sample SB-26- <br /> 40.5'@ 40,5 feet an 1110312005, benzene from SB-26-60.5' @ 60.5 feet on 1110312005,TPH(Diesel)from TP-7-10 @9 to <br /> 10 feet on 0412112005, MTBE-from SE-8 @19.0 feet on 04/25/1996, 1,2-DCA and EDB from SB-4 @ 70 feet on 12/1311999, <br /> and lead from ST-4 @ 5 feet on 0412511996. `Soil After'concentrations were not collected. The `Groundwater]Before' <br /> concentrations for TPH (gas)and xylenes are from S-1 on 0814212000, benzene from SB-34 @ 68 feet on 0712912010, <br /> toluene from S-1 on 11/2311998, ethylbenzene from S-1 on 06/04/2012, MT13E from S-6 on 05/05/2004 and 0610512007, <br /> 1,2-DCA from SB-4 @ 72 feet 12/13/1999, and EDB from SA on 10/2812002. `Groundwater After'concentrations for'rP1-I <br /> (gas), benzene,toluene, ethylbenzene, xylenes and 1,2-DCA are from S-1 on 0611812013, MTBE and EDB are from S-6 on <br /> 06118/20,13. AIA—not anal zed <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional [Board Basin Plan? Yes <br /> [Does completed corrective action protect potential beneficial uses per the Regional Board Basin Plan? Yes <br /> Does corrective action protect public health for current land use? Yes <br /> Site management requirements: None <br /> Should corrective action be reviewed if land use changes? Yes <br /> MonitoringNapor wells decommissioned: No Number Decommissfoned: 0 Number retained: 10 <br /> List enforcement actions taken: NOR-an 0412911996, 11/29/2045 and 8/07/2012 <br /> List enforcement actions rescinded: None <br /> V, Luca[Agency Representative Data <br /> Name: Adrienne Ellsaesser, RENS Title: Program Coordinator <br /> i <br /> Signature: r Date: f <br /> VI Centra[Valle Re ionaf Water QUaRy Coitral Board RB Notification <br /> Date Submitted to RB: Response Date: <br /> RB Staff: Cori Condon Response; <br /> rifle:Senior Engineering Geologist <br /> VII.Additional Comments, Data etc. <br /> A groundwater extraction pump test was performed at this site in March 2004 and approximately 1.9 pounds of TPH gas <br /> vrore removed durinq the test. <br /> This clocumenanti the related OAS Hi CL 4St1RE LETTER shall be re aide[€by the lead agcNicy-is 13,3 it of the official site A10. <br /> Page 2 <br /> i <br /> I <br />