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Updated: 7/20/01 REMEDIAL OVERSIGHT PROGRAM Report#: 7544 <br /> Printed: 7/20/01 .SITE DATA <br /> Page#: 1 <br /> Remedial Oversight Record ID: 800000316 Facility ID: FA0005408 Site Code 1503 RWQCB Site ID: <br /> Location' �.... _.— _._. _... _. <br /> Site Namc:LANGSTON ARCO* Substance:8006619-Gasoline Petroleum? Y <br /> Site ContacnJAMES LANGSTON District: 005-BEDFORD,LYNN <br /> Site Address:]5615 E SEVENTH Location Code: 07-LATHROP <br /> LATHROP CA 95330 <br /> Pbone:209-858-2470 Fax: Email: <br /> Case Type:A-Aquifier polluted APN:196-250-52 Number ofMonitoring Wells: 8.00 <br /> Fund Source:F-Federal Latitude: Free Product: <br /> Assigned to:EE0000684-INFURNA Longitude: Depth to GW:I3.64'ft <br /> Current Status: Contract Status:5 <br /> _ - . :Dates&Info <br /> Reponed:4/2/9] Confinned:4/11/91 <br /> RP Scarch:S-Solvent RP Search Sterted:2/1/93 RP Search En&d:2/3/93 <br /> Preliminary AssessmentC-Completed Preliminary Assessment Started:4/7/92 Preliminary Assessment Ended:9/26/00 <br /> Remediation Investigation:U-Underway Remediation Investigation Started:1/5/01 Remediation Investigation Ended: <br /> Remedial Action: Remedial Action Started: Remedial Action Ended <br /> Post Remediation Monitoring: Post Remediation Monitoring Started: Post Remediation Monitoring Ended: <br /> Case Closed: Case Closed Date: Contaminated Soil left in Place: <br /> Emergency Response: <br /> Remedial Action#LED-Excavate&dispose Federal ExempEN <br /> Remedial Action#2:AS-AIR SPARGE Case List: <br /> Remedial Action 43: Enforcement Action Taken: <br /> Remedial Action#4: Enforcement Action:N-NOR ISSUED <br /> Remedial Action#5: Enforcement Type:] -NOR ISSUED <br /> Remedial Action#6: Exclude from Export?N <br /> Remedial Action 47: LUFT Considerations:3 HRWAG <br /> Interim Remediation: N Interim Remediation Dale: <br /> LUSTIS Update: Last Technical Correspondence:10/2/00 <br /> Review Status: Category: <br /> LOP Agency:33000-San Joaquin County PHS-EHD Local Agency:39000-San Joaquin County PHS-EHD <br /> Lead Agency:L-Local Agency LOP Site(Pilot Program): Y <br /> Financial _.._. .__..._. <br /> Program Element Code:3526-LOP GW SITE <br /> Comments <br /> SOIL: <br /> TPH-g&BENZENE SOIL: DEFINED,LATERAL AND VERTICAL BY 9/26/00 INSTALLATION OF MW-5,6,7,AND 8. <br /> MTBE:SOIL-ONLY SLIGHT MtBE IN TWO(25'&30)SAMPLES IN MW-5,AT 22&19 RASP. SOIL FROM 35'BGS IN MW-5 WAS NO FOR MtBE. <br /> VERTICAL DELINEATION ESTABLISHED...LATERAL SOIL INVESTIGATION NEEDED. <br /> GW: <br /> TPH-g&BENZENE: NOT DEFINED TO NW ONLY. LATERAL AND VERTICAL IN OTHER QUADS=DEFINED. <br /> MtBE:NOT DEFINED..MW-3 HOTTEST AT 20 PPB. GRADIENT SHIFT TO NW TWO QMs NOW...NO MW IN NW. WP FOR 5 CPTs OK'd 5-24-01. NO <br /> MW IN THIS PHASE. <br /> __.. _.. . _ . Legacy Release Information .. ..... . <br /> The Belds in this section are being replaced with new forms Released Substances,Samples,Analytes in order to comply with GEMIS. These fields will be removed at the end of 2001. <br /> To retain this data,it must be entered in the forms noted above. <br /> Released Substances Concentrations(pub <br /> Dissolved ConstituencTPHG Maximum Concentrations Current Concentrations <br /> Maximum MTBE Date:04/16/99 TPH-SoiL220.ppm <br /> Excavation Started: TPH-GW: 180000 ppb TPH-GW:I 1,000 ppb <br /> Benzene-Soil:17-MWI ppm <br /> Benzene-GW:17,000 ppb. Benzene-GW460ppb <br /> MTBE-Soil:22-M W5 ppm <br /> MTBE-GW:250.ppb MTBE-G W:20 ppb <br /> ... Responsible Parties <br />