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SLITTER OFFICE CENTER Page 1 of 2 ,.w �.. LTCP Checklist Go GEOTRACKER HOME MANAGE PROJECTS I REPORTS I SEARCH I LOGOUT SUTTER OFFICE CENTER(T0607700732)-MAP THIS SITE OPEN-ELIGIBLE FOR CLOSURE 242 SUTTER ST ACTIVITIES REPORT CLEANUP OVERSIGHT AGENCIES STOCKTON,CA 95902 SAN JOAQUIN COUNTY LOP LEAD)•CASE#.9327 SAN JOAQUIN COUNTY PUBLIC WEBPAGE CASEWORKER:GABR/EL GONZALEZ-SUPERVISOR:ADRIENNE ELLSAESSER CENTRAL VALLEY RWOCB(REGION 5S)-CASE#.390910 VIEW PRINTABLE CASE SUMMARY FOR THIS SITE CASEWORKER:JAMES BARTON-SUPERVISOR:CORI CONDON CUF Claim#:17618 CUF Priority Assigned: CUF Amount Paid:12 THIS PROJECT WAS LAST MODIFIED BY NOEL HENDERSON ON 6/25/2014 2:28:14 PM-HISTORY THIS SITE HAS SUBMITTALS.CLICK HERE TO OPEN A NEW WINDOW WITH THE SUBMITTAL APPROVAL PAGE FOR THIS SITE. CLOSURE POLICY THIS VERSION IS FINAL AS OF 6/25/2014 CHECKLIST INITIATED ON 12/1a(2012 CLOSURE POLICY HISTORY General Criteria-The site satisfies the policy general criteria-CLEAR SECTION ANsZLU YES a.Is the unauthorized release located within the service area of a pubt water s stem? F YES C NO Nam of Water System: JCarvVater b.The unauthorized release consists only of petroleum Lj= r YES C NO c.The unauthorized("primary")release from the UST system has been stopped. f' YES C NO d.Free product has been removed to the maximum extent practicable info. I' FP Not Encountered YES C NO e.A conceptual site model that assesses the nature,extent,and mobility of the release has been developed info. f• YES C NO f.Secondary source has been removed to the extent practicable info. YES C NO g.Soil or groundwater has been tested for MTBE and results reported in accordance with Health and Safety Code Section C Not Required YES NO 25296.15. h.Does a nuisance exist,as defined by Water Code section 13050. C YES NO 1.Media-Specific Criteria:Groundwater-The contaminant plume that exceeds water quality objectives is stable or decreasing in areal extent,and YES meets all of the additional characteristics of one of the five classes of sites listed below.-CLEAR SECTION ANSWERS EXEMPTION-Soil Only Case(Release has not Affected Groundwater-" C YES r NO Does the site meet any of the Groundwater specific criteria scenarios? f' YES C NO 1.1-The contaminant plume that exceeds water quality objectives is<100 feet in length.There is no free product.The nearest existing water supply well or YES NO surface water body is>250 feet from the defined plume boundary. 2.Media Specific Criteria:Petroleum Vapor Intrusion to Indoor Air-The site is considered low-threat for the vapor-intrusion-to-air pathway if site- NO specific conditions satisfy items 2a,2b,Or 2c-CLEAR SECTION ANSWER EXEMPTION-Active Commercial Petroleum Fueling Facility C YES NO Does the site meet any of the Petroleum Vapor Intrusion to Indoor Air specific criteria scenarios? C YES f' NO ADDITIONAL QUESTIONS-Please indicate only those conditions that do not meet the policy criteria: Soil Gas Samples: C No Soil Gas Samples C Taken Incorrectly Exposure Type: C Residential C Commercial Free Product: C In Groundwater C In Soil C Unknown TPN in the Bioattenuation Zone: (:>100 mg/kg C Unknown C Soil samples not taken at two depths within 5 ft.zone(only for Scenario 4 with BioZone) Bioattenuation Zone Thickness: C <5 Feet(No BioZone) r >_5 Feel and<10 Feet C>10 Feel and<30 Feet 2 30 Feet C Wft BioZone Compromised TPH>100mg/kg C Unknown 02 Data in Bioattenuation Zone: C No 02 Data C 02<4% 0224% Benzene in Groundwater: C>100 pg/I and<1,000 p9/I 2 1,000 pg/I C Unknown Soil Gas Benzene C>85 pg/m3 and<280 pg/m3 C 2 280 pg/m3 and<85,000 pg/m3 C 2 65,000 pg/m3 and<280,000 pg/m3 C 2 280,000 pg/m3 Unknown Soil Gas EthylBenzene: >1.100 pg/m3 and<3,600 Ng/m3 >3,600 pg/m3 and<1,100,000 pg/m3 C 2 1,100,000 pg/m3 and<3,600,000 pg/m3 C 2 3,600,000 pg/m3 f'Unknown Soil Gas Naphthalene: C>_93 pg/m3 and<310 pg/m3 C 2 310 pg/m3 and<93,000 Ng/m3 C 2 93,000 pg/m3 and<310,000 Ng/m3 C>_310,000 Ng/m3 f' Unknown 3.Media Specific Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-threat for direct contact and outdoor air exposure YES If it meets 1,2,Or 3 below.-C.i FAR SECTION ANSWERS EXEMPTION-The upper 10 feet of soil is free of petroleum contamination C YES f' NO Does the site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? f' YES C NO 3.1-Maximum concentrations of petroleum constituents in soil are less than or equal to those listed in the following table(LINK)for the specified depth r YES C NO below ground surface. _ Additional Information https:Hgeotracker.waterboards.ca.gov/regulators/screens/closure—Policy.asp?global_id=TO... 6/25/2014