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WEST CLAY PROPERTY Page 1 of 2 <br /> Path to Closure Plan GO GEOTRACKER HOME I MANAGE PROJECTS I REPORTS I SEARCH I LOGOUT <br /> WEST CLAY PROPERTY(TO607700323)-MAP THIS SITE OPEN-REMEDIATION <br /> 639 CLAY STW CLEANUP OVERSIGHT AGENCIES <br /> STOCKTON,CA 95206 ACTIVITIES REPORT SAN J. <br /> IN COUNTY LOP(LEAC)-CASE#:1065 <br /> SAN JOAQUIN COUNTY PUBLIC WEBPAGE CASEWORKER:VICKI MCCARTNEY-SUPERVISOR:ADRIENNE ELLSAESSER <br /> VIEW PRINTABLE CASE SUMMARY FOR THIS SITE CENTRAL VALLEY RWOCB(REGION 5S)-CASE#:390415 <br /> CASEWORKER:,1AMESBARTON-SUPERVISOR:CORI CONDON <br /> CUF Claim M 8542 CUF Priority Assigned:C CUF Amount Paid:$757.487 <br /> THIS PROJECT WAS LAST MODIFIED BY NUEL HENDERSON ON 6/27/2014 11:49:40 AM-HISTORY <br /> THIS SITE HAS SUBMITTALS.CLICK HERE TO OPEN ANEW WINDOW WITH THE SUBMITTAL APPROVAL PAGE FOR THIS SITE. <br /> Path to Closure Plan THIS VERSION/S FINAL AS OF 6/27/2014 PATH TO CLOSURE HISTORY CLEAR I RESET PATH TO CLOSURE PLAN <br /> IMPEDIMENT 1: <br /> General Criteria E:A conceptual site model that assesses the nature,extent,and mobility of the release F Procedural Impediment-INFO <br /> has NOT been developed <br /> Stop to Resolve Impediment 1-Step 1: DELETE STEP <br /> - <br /> submittal of a conceptual site model or a report identifying reports that contain the necessary COMPLETION DATE <br /> components of a conceptual site model. Site assessment must be completed; submit a work plan to PROJECTED DATE ACTUAL DATE <br /> complete the .site assessment (plums delineation). 17)302014 1 <br /> Step to Resolve Impediment 1-St.2:- - <br /> COMPLETION DATE <br /> Implement an approved work plan for the plume delineation and submit the report of findings. <br /> EftW <br /> E D TE ACTUA DA <br /> 12!302015 <br /> ADD ADDITIONAL STEP <br /> IMPEDIMENT 2: <br /> General Criteria F:Secondary source has NOT been removed to the extent practicable —� r Procedural Impediment-AM <br /> Stop to Resolve Impediment 2-Step 1: STEP- <br /> COMPLETION DATE <br /> linst,ll the approved in-situ chemical oxidation remediation system. <br /> 121302015 <br /> to Resolve Impediment 2-Step 2:-DELETE STEP <br /> COMPLETION DATE <br /> Complete remediation at this site. <br /> PROJECTED DATE ACTUAL DATE <br /> 61302016 rte_ <br /> ADD ADDITIONAL STEP <br /> IMPEDIMENT 3: <br /> Media-Specific Criteria:Groundwater:The contaminant plume that exceeds water quality objectives is I Procedural Impediment-MFo <br /> NOT stable or decreasing in areal extent,and does NOT meet all of the additional characteristics of one of <br /> the five classes of sites. <br /> Conditions that do not meet the policy criteria: <br /> • Plume Length(That Exceeds Water Quality Objectives):Unknown <br /> • Plume is Stable or Decreasing in AREAL Extent:Unknown <br /> • Benzene Concentration:>_1,000 pg/I and<3,000 pg/I <br /> Stop to Resolve Impediment 3-Sbw 1:-DELETE STEP DATE <br /> Submit a work plan to delineate the groundwater plume east/northeast of monitoring well MW-29. <br /> P OJ C D <br /> 12)302014 <br /> to ResolveIm 3-Stop 2::_2KLg1L&M - <br /> COMPLETION DATE <br /> JImplement the approved work plan and submit the report of findings. <br /> ACTUA DA <br /> 12/30/2015 <br /> ADD ADDITIONAL STEP <br /> IMPEDIMENT 4: <br /> Media Specific Criteria:Petroleum Vapor Intrusion to Indoor Air:The site is NOT considered low-threat for r Procedural Impediment-INFo <br /> the vapor-intrusion-to-air pathway and site-specific conditions do NOT satisfy items 2a,2b,or 2c. <br /> Conditions that do not meet the policy criteria: <br /> • Exposure Type:Commercial <br /> • TPH in the Bioattenuation Zone:>100 mglkg <br /> • Bioattenuation Zone Thickness:<5 Feet(No BioZone) <br /> • 02 Data in Bioattenuation Zone:No 02 Data <br /> • Benzene in Groundwater:2:1,000 pg/I <br /> • Soil Gas Benzene:Unknown <br /> • Soil Gas EthylBenzene:Unknown <br /> • Soil Gas Naphthalene:Unknown <br /> to Resolve Impediment 4-Sim 1:-DELETE STEP DATE <br /> Complete a technically valid vapor intrusion evaluation and submit the report to the San Joaquin County <br /> Environmental health Department. P ACTUAL DA <br /> TE <br /> 17)30/2014 <br /> https:Hgeotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp?global_id=TO... 6/27/2014 <br />