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Shockey Truck Stop - 3 - Septem,ber 20f2 ' . <br /> Y <br /> Claim No. 9384 <br /> TOTAL PETROLEUM HYDROCARBON'S(TPH)AS IAESEL FUEL.(TPHD)Results for MW1 M <br /> 1a0000 <br /> 160000 <br /> _ 140000- <br /> i 20006 <br /> 0 120000 . <br /> Z.j... r <br /> + 100000 _.r. __ ,.,Y♦ -- j ti{ <br /> A. 80000 ' <br /> 53t 80000 -"—'-'- --1 —'!'- <br /> 40000 <br /> R _ <br /> 20000 <br /> t <br /> TOTAL PETROLEUM HYDROCARBONS(TPA)AS DIESEL FUEL(TPHD) <br /> TOTAL PETROLEUM HYDROCARBONS(TPH)AS DIESEL FUEL'(TPHD)Results i8F MW6 , <br /> 40000 <br /> " •. ♦ wr ..4d'. './'. S ;.aur: �1 sr»�.r' wv.:s.4 .rd:a "w"'t-..-. _i_.. - _ <br /> 35000- <br /> 30000 - - -- - —_ ""yT•..' <br /> . 25000 <br /> 3 20000 4 € <br /> Cr 15000 <br /> w� <br /> .loom <br /> 5000 <br /> +__.�..TOTAL PETROLEUM HYDROCARBONS fr H)AS DIESEL FUEL-(TPHD) Trend <br /> Receptors <br /> • GW Basin: San Joaquin Valley— Eastern San Joaquin. <br /> • Beneficial Uses: None specified, deeper aquifer(s) used for drinking water supply <br /> • Land Use Designation: None specified, aerial photo show site is commercial surrounded <br /> by mixed commercial and residential. <br /> • Public Water System: City of Ripon. <br /> • Distance to Nearest Supply Well: According to data available in GeoTracker, there are <br /> two CDPH regulated water supply wells within Y2 mile of the site; nearest well is <br /> -2,205 fest west from the Site. <br /> - • Distance to Nearest Surface Water: San Joaquin Rivers lies one mile east from the Site. <br /> Risk Criteria <br /> • Estimate of Hydrocarbon Mass in Soil: None reported. <br /> • Soil/Groundwater Tested for MTBE: Yes, see table below. <br /> • Plume Length, Extent and Mobility: <100 feet, defined, decreasing in size and <br /> concentration. <br /> • Contaminated Zone(s) Used for Drinking Water: No. <br /> • Oxygen Concentrations in Soil Vapor: No data. <br /> • Indoor Vapor Risk from Residual Petroleum Hydrocarbons: No human health risk <br /> assessment noted in Geotracker. According to the recently approved low threat closure <br /> policy, no significant risk'since benzene concentrations are less than 100 and the depth <br /> to groundwater is greater than 5 feet, consistent with special criteria 2a. <br />