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CHEVRON #9-8632 - - " Page 1 of 2 p LTCP Checklist © 999RACKERHOMEIMANAGEPROJECTBIREP�TSI§LLRCUILOGOII IIIRry1,l CHEVRON #9-8632 (T0607700670) - MAP THIS SITE OPEN - SITEASSESSMENT 575 1I TRACY , C LINE RDW ACTIVITIES REPORT SAN JOAQUIN COUNTY HT AGENCIES ) - CASEx 1408 SAN JO QU 95376 CASEWORKER: HAPUNKNOLL - SUPERVISOWAORIENNEELLSAESSER SAN JOAQUIN COUNTY PUBLIC WEBPAGE CENTRAL VALLEY RWOCS (REGION 55 - CASE k 390842 VIEW PRINTABLE CASE SUMMARY FOR THIS SITE CASEWORKER: JAMES BAR ARTON - SUPERVISOR: BRIAN NEWMAN CUP Claim %: 9662 CUP Priority Assigned: D CUP Amount Paid: §0 THIS PROJECT WAS LAST MODIFIED BY NARLIN KNOLL ON 611812013 3:58:24 PM - HISTORY THIS SITE HAS UNAPPROVED SUBMITTALS. CLICK RM TO OPEN A NEW WINDOW WITH THE SUBMITTAL APPROVAL PAGE FOR THIS E. CLOSURE POLICY THIS VERSION IS IN PROGRESS AS OF S/29/2013 CHECKUSTINITIATED ON MW2013 CLOSURE POLICY HISTORY General Criteria - The Site Satisfies the policy genera/ Criteria - CLEAR SECTION ANSWERS NO a. Is the unauthorized release located within the service area of a publicwaterays lem7 Name Of Water System : JUINafTraw - r YES C NO b. The unauthorized release consists only of petroleum Imo. .r YES C NO e The unauthorized (°primary°) release from the UST system has been stopped. r YES r NO d. Free product has been removed to the maximum extent practicable III= f• FP Not Encountered C YES f NO e. A conceptual site model that assesses the nature, extent, and mobility of the release has been developed finfol. r 'YES C NO f. Secondary source has been removed to the extent practicable (info. Impediment to Removing Secondary Source (Check all that Apply): F Remedlatlon Has Not Been Attempted F Personation Was Designed Incorrectly r YES r NO F Remediation Was Shut Off Prematurely F Poor Remetliation 08M F Other - g. Soil or groundwater has been tested for MTBE and results reported in accordance with Health and Safety Code Section 25296.15. r Not Required C• VES C NO F. Does a nuisance exist, as defined by Water Code section 13050. C YES r NO 1. Media-Specific Criteria: Groundwater - The contaminantplume that exceeds water quality objectives is stable ordecreasing in areal extentandYES meets all of the additional characteristics of one of the five Gasses of sites listed below. - CLEAR SECTION ANSWERS EXEMPTION - Soil Only Cam (Release haste Affected Groundwater Info) C YES r NO Does the site meet any of the Groundwater specific criteria scammos7 r YES C NO 1.1 - The contaminant plume that exceeds water quality objectives is <100 feel in length. There Is no free product. The nearest existing water supply well or It ' r YES r 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-airpathway if site- NO specific Conditions satisfy items 2a, 215, Or 2c - CLEAR SECTION ANSWERS EXEMPTION - Active Commercial Petroleum Fueling Facility C YES r NO Does the site meet any of the Petroleum Vapor Intrusion to Indoor Air specific criteria scenarios? r YES G,. 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 : r Residential r Commercial - Free Product : C In Groundwater C In Soil C Unknown TPH in the SioattenuaOon Zone : C z 100 mglkg C Unknown r Soil samples not taken at two depths within 5 ft. zone (only for Scenario 4 with BioZone) Bioattenuation Zone Thickness : 1,r < 5 Feet (No BioZone) �F z 5 Feel and < 10 Feet r z 10 Feet and < 30 Feel C z 30 Feet C 300 BioZone Compromised TPH > i Wmgikg f Unknown 02 Data In Bloattenua0on Zone : C No 02 Data . r 02 < 4% C 0224% Benzene in Groundwater : rt 100 pg/I and < 1 ,000 pgil (- z 1,000 pg/I f Unknown Soil Gas Benzene : C z 85 pglm3 antl < 280 pg/m3 r z 280 pglm3 and < 85,W0 pg/m3 C z 85,000 pglm3 and < 280,000 pglm3 C z 280,000 pg/m3 C Unknown Soil Gas EthylBenzene : C z 1,100 pg/m3 and < 3,600 pg/m3 r• z 3,600 pgim3 and < 1 ,100,000 pg/m3 C' z 1,100,000 pg/m3 and < 3,600,000 pg/m3 C z 3,600,000 pg/m3 C Unknown Soil Gas Naphthalene : C z 93 pg/m3 and < 310 pilots z 310 pg/m3 and < 93,000 pg/m3 C' z 93,000 pgim3 and < 310,000 pgim3 C z 310,WO pglm3 `(,Unknown 9. Media Specific Criteria: Direct Contact and Outdoor Air Exposure - The site is considered low-threatfordiect contact and ouMoorair exposuLB NG If It meets 1, 2, Or 3 below. - CLEAR SECTION ANSWERS https ://geotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp?global_id=TO. . . 6/24/2013