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TA& <br /> SUMMARY OF GROUNDWATER ELEVATION AND ANALYTICAL DATA <br /> CALTRANS MAINTENANCE STATION <br /> STOCKTON, CALIFORNIA <br /> '� r a�.ax <br /> DEPTM Td, GROUND--' TPN-G `{T = ZE <br /> WELL I D. DATE TOC GROUNIO- '� WATER �p9�t} tF�!�i1 <br /> ELEVATION WATER �. ELEVATION <br /> 30 MW-12d up NA NA NA NA <500 ------- 09 10 <0 3 09 q<06WNA <br /> MW-12 5125197 2219 5585 -33 66 <500 <500 04 19 05 21 <0 6 NA <br /> MW-12 5127197 2219 5585 -3366 <500 <500 04 1 9 05 21 <0 6 NA <br /> MW-12 10/17/97 2219 57_98 -3579 <500 <500-- _ 0-8— 0 8 <0 3 _ 08 <06 — NA <br /> MW-12 12/29/97 2219 57-40-- --3521 <50 <5000 <0 5 060 <0 5 1 1 <5 W <5 <br /> MW-12 3116198 2219 5381 -3162 _ <50 70 091 200 07 41 _ <5 _ ND _ <br /> MW-12 6126198 2219 5012 -2793 <50d-- <br /> <_ 00_50 09 040 1 1 2 1 (<5) 6 9 <br /> MW-12 1 912819822.19 5204 1 -2985 1 <500 1 <5000 I <03 ' +, <br /> Notes <br /> TOC = Top of casing elevation <br /> MSL= Mean Sea Level <br /> TPHG =Total Petroleum Hydrocarbons as Gasoline by EPA Method 8015M <br /> TPHD = Total Petroleum Hydrocarbons as Diesel by EPA Method 8015M <br /> BTEX = Benzene, Toluene, Ethylbenzene, and Total Xylenes by EPA Method 8020 <br /> MTBE = Methyl Tertiary Butyi Ether by EPA Method 8020 <br /> < = Less than method detection limit <br /> ----- W Not measured, sampled tested, or present <br /> All groundwater level measurements are presented in feet <br /> mg/l = milligrams per liter <br /> pg/I = micrograms per liter <br /> (<5) = MTBE concentration as calculated by EPA Method 8260 <br /> VOCs = Total concentrations of VOCs not reported as BTEX or MTBE <br /> Page 7 of 7 <br />