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KNOWLES STATION Page 1 of 1 LTCP Checklist U GEOTRACKER NOME I MANAGE PRQIECTS I REPORTS I SEARCH I LQQ KNOWLES STATION(70607700078)-MAP THIS SITE OPEN-ELIGIBLE FOR CLOSURE 1140 HAMMER LN W ACTIVITIES REPORT CLEANUP OVERSIGHT AGENCIES STOCKTON,CA 95209 SAN JOAQUIN COUNTY LOP ILEAC-)-CASE9 1124 SAN JOAQUIN COUNTY PUBLIC WEBPAGE CASEWORKER:GABR/EL O-/_?IV?Ai FI-SUPERVISOR:ADRIENNE ELLSAESSER CENTRAL VALLEY RWOCS(REGION 5S)-CASE N-390107 VIEW PRINTABLE CASE SUMMARY FOR THIS SITE CASEWORKER:JAMES 6ARTON-SUPERVISOR:LORI LONDON CUF Claim 0:854 CUF PA-fty Asslgnad:B CUF Am t PAId:01j,= CR Site ID•:NOT SPECIFIED r THIS PROJECT WAS LAST MODIFIED BY NUEL HENDERSON ON 4/8/2015 2:02:58 PM-HISTORY THIS SITE HAS UNAPPROVED SUBMITTALS,CLICK H=TO OPEN ANEW WINDOW WITH THE SUBMITTAL APPROVAL PAGE FOR THIS SITE. CLOSURE POLICY THIS VERSION IS FINAL AS OF 4/8/2015 CHECKLIST INITIATED ON 71112011 CLOSURE POLICY HISTOR General Criteria-The site satisfies the policy general criteria-Cl FAR SECTION AN RS YES a.Is the unauthorized release located Within the service area of a public waters stem? �N-0twx1elsy*tiiim', t: YES r N �t u:.Y.Cor: East Na[^[ Cist. b.The unauthorized release consists only of petroleum jj=. r- YES r N c.The unauthorized('primary")release from the UST system has been stopped. G YES r N d.Free product has been removed to the maximum extent practicable jj=. f' FP Not Encountered r YES r N e.A conceptual site model that assesses the nature,extent,and mobility of the release has been developed(into). YES r N r YES r N I . dary source has been removed to the extent practicable Gino,. r groundwater has been tested for MTBE and results reported in accordance with Health and Safety Code Section 25296.15. r Not Required�' YES r N r YES f N a nuisance exist,as defined by Water Code section 13050. 1.Media-Specific Criteria:Groundwater-The contaminant plume that exceeds water quality objectives is stable or decreasing in areal extent,and meets all of the additional YES characteristics Of one of the five classes of sites listed below.-QL6aM&IQNAUMWM r YES r• N EXEN P TION-Soil Only Case(Release has not Affected Groundwater-Ir�[q) t' YES r N Does the site meet any of the Groundwater specific criteria scenarios? 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 surface water body is>250 G YES r N 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-specific conditions YES satisfy items 2a,2b,or 2c-Q FAR a=rTIOH ANMffM r- YES re N EXEMPTION-Active Commercial Petroleum Fueling Facility t' YES r N Does the site meet any of the Petroleum Vapor Intrusion to Indoor Air speck Criteria scenarios? 2a-Scenario 1(example) Unweathered LNAPL in Groundwater-The bioattenuation zone is a continuous zone that provides a separation of at least 30 feet vertically between the LNAPL in groundwater and the foundation of existing or potential buildings,and total TPH(TPH-g and TPH-d combined)are c100 mglkg throughout the entire depth of the bioattenuation �' YES r N zone. 3.Media Specific Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-threat for direct contact and outdoor air exposure if it meets 1,2,or 3 below. YES -[FAR cF[TION ANSWERS ' YES rN EXEMPTION-The upper 10 feet of soil is free of petroleum contamination Additional Information rYES a' N This case should be kept OPEN in spite of meeting policy criteria. G YES r Has this LTCP Checklist been updated for FY 14/157 P H K Save Formas Partjall Completed Save Form as Com ete CONTACT GEOTRACKER h LOGGED IN AS HENDERSONN https:Hgeotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp?global_id=T06... 4/8/2015