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U-HAUL STORE #70950 ,r Page I of 1 r s-, Path to Closure Plan J GO GEOTRACKER HOME I MANAGE PROJECTS I R e.011 M I sEARcH I149W U-HAUL STORE#70960(T0607700249)-MAP THIS SITE OPEN-ELIGIBLE FOR CLOSURE 2701 WILSON WAY N CLEANUP OVERSIGHT AGENCIES STOCKTON CA 95205 ACTIVITIES REPORT SAN JOAQUIN COUNTY LOP(LEAD)-CASE#:1772 CASEWORKER,ANGELICA SANDOVAL MARIN-SUPERVISOR:ADRIENNE ELLSAESSER SAN JOAQUIN COUNTY PUBLICWEBPAGE CENTRAL VALLEY RWQCB(REGION 5S)-CASE#390335 VIEW PRINTABLE CASE SUMMARY FOR THIS SITE CASEWORKER:JAMES BARTON-SUPERVISOR:CORI CONDON THIS PROJECT WAS LAST MODIFIED BY NUEL HENDERSON ON 12/1212013 2:26:54 PM-HISTORY THIS SITE HAS SUBMITTALS.CLICK HFRF TO OPEN ANEW WINDOW WITH THE SUBMITTAL APPROVAL PAGE FOR THIS SITE. Path to Closure Plan THIS VERSION IS FINAL AS OF 12/12/2013 PATH TO CLOSURE HISTORY CLEAR I RESET PATH TO CLOSURE PLAN IMPEDIMENT 1: Media-Specific Criteria:Groundwater:The contaminant plume that exceeds water quality objectives is r Procedural Impediment-INFO NOT stable or decreasing in areal extent,and does NOT meet all of the additional characteristics of one of the five classes of sites. Conditions that do not meet the policy criteria: • Plume Length(That Exceeds Water Quality Objectives):2 260 Feet and<1,000 Feet • Nearest Supply Well(From Plume Boundary):>260 Feet and 51,000 Feet to Resolve Impedment 1-Step 1:-BUJOLM COMPLETION DATE Closure report and Closure Addendum Report and groundwater monitoring data demonstrates plume stability L DTE PROJECTED DATE ACTUAA and declining dissolved mass. 12/31/2013 12/122013 ADD ADDITIONAL STEP IMPEDIMENT 2: Media Specific Criteria-Petroleum Vapor Intrusion to Indoor Air:The site is NOT considered low-threat for Procedural Impediment-gn the vapor-intrusion-to-air pathway and site-specific conditions do NOT satisfy items 2a,2b,or 2c. Conditions that do not meet the policy criteria: • TPH in the Bioattenuation Zone:>_100 mg/kg • 02 Data in Bioattenuation Zone:No 02 Data • Soil Gas Benzene:Unknown j • Soil Gas EthylBenzene:Unknown Soil Gas Naphthalene:Unknown Step to Resolve Impediment 2-Step 1:-DELETE STEP COMPLETION DATE Based on limited confirmation soil sample data, the consultant, Cardno ATC, concluded in Closure Addendum Report that recent soil analytical results do not exceed SFBRWQCB's ESLs and therefore there is PROJECTED DATE ACTUAL DATE no significant risk to human health through expo=,. — vapor. 12131/2013 12/12/2013 ADD ADDITIONAL STEP IMPEDIMENT 3: Media Specific Criteria:Direct Contact and Outdoor Air Exposure:The site is NOT considered low-threat F Procedural Impediment-INE2 for direct contact and outdoor air exposure as it does NOT meet 1,2,or 3. Conditions that do not meet the policy criteria: • Exposure Type:Utility Worker • Petroleum Constituents in Soil:<-5 Feet bgs • Soil Concentrations of Benzene:>14 mg/kg • Soil Concentrations of EthylBenzene:>314 mg/kg • Soil Concentrations of Naphthalene:Unknown • Soil Concentrations of PAH:Unknown Step to Rs•olve Impndmerd 3-Step 1:-DF!FFTE•Tr_F COMPLETION DATE Based on limited confirmation soil sample data, the consultant, Cardno ATC, concluded in Closure Addend=Report that recent soil analytical results do not exceed SFBRWQCB's ESLs and therefore there is PROJECTED DATE no significant risk to human health through direct contact with impacted soil. 12(3112013 _ 12/122013 ADD ADDITIONAL STEP REQUIREMENTS ALONG PATH TO CLOSURE PUBLIC WELL DATE IDENTIFIED RP NOTIFICATION PARTICIPATION DESTRUCTION WASTE DISPOSAL LAND USE SITE CLOSURE FOR CLOSURE' CL I I ATED BY DATE COMPLETION DATE DATE DATE RESTRICTION DATE DAT 12/122013 SAN JOAQUIN COUNTY LOP ' Date Id•ndfled for Closure is the date all impediments to closure have been removed Save Form as Partially Completed F Save Form as Complete -- -- ---- ---- --- --- "--- CONTACT GEOTRACKER HELP LOGGED IN AS HENDERSONN https://geotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp?global_id=T... 12/12/2013