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DATE 04/13/1999 13 29 PRJJ S8 70 4 JDRAWINC prof\to\othergm\sb—gm\unocol\sb000070 0001\UNO—C1 CHECKED CULLEN I APPROVED CULLEN DRAFTER STILES <br /> 0. <br /> 10 100, <br /> l <br /> Approximate Property Boundary �♦ / f <br /> Former Waste l 1 <br /> («) Oil Tank <br /> Farmer (removed 19Y!)(C50)♦ I / W 1 <br /> Station 4 A-1 /�ormer ' L I 1 <br /> I BuildingO <br /> Xy(<50) Is ande� � 1 f' <br /> 0¢ NP-2 O � ! <br /> I 1 <br /> For r Undep�round (690) <br /> j Former Waste St age T k Site •7. I z 1 <br /> Oki Tank�'' �Femove 1967) p x U"3 p I <br /> I(removed 1992) 9-1 r / 1 27,000) t� <br /> U—Sormef <br /> (<50) <br /> As ens l i / 10000 f* U—B <br /> P i <br /> Former 151an ~N' <br /> 1 Underground p-2 Ni/4 —1 (73) T <br /> Storage Tonks 11 <br /> removed 199 2) lU<90) 0-4 22 ODO'� � ✓ ( )p , / 0 40 <br /> --� - - - - / <br /> - T t / <br /> r ♦ Scale in Feet <br /> / / EXPLANATION <br /> l ' I GROUNDWATER MONITORING WELL <br /> a NESTED PIEZOMETERS <br /> I ♦ / 9 VAPOR EXTRACTION WELL <br /> EAST MINER AVENUE <br /> 1 / (<O 50) TPH G CONCENTRATION <br /> '// / ---- TPH G; CONCENTRATION CONTOUR <br /> ♦ (NS) NOT SAMPLED <br /> CONCENTRATIONS IN Ng/L <br /> U-7 <br /> ` ♦=`��__, �.1 1 / !"-'—' sarce uwwn rKa r, O<o.ug Proaeea <br /> rx <br /> ?uinq ! t <br /> fi�on hc. <br /> ISO CONCENTRATION MAP, SHALLOW GROUNDWATER FIGURE <br /> ARCADIS TPHg - FEBRUARY 5, '1999 <br /> GERAGHTY&MILLED s'� <br /> FORMER UNOCAL.SERVICE STATION NO 0187 <br /> 437 EAST MINER AVENUE, STOCKTON, CA <br />