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DATE 04/13/1999 13 32 1 PRJ# SB 70 4 DRAWING prof\co\othergm\sb-gm\unocol\sb000070 0001\UNO-05 CHECKED CULL£N APPROVED CULLEN DRAFTER STILES <br /> U-9 <br /> / (23) <br /> Approximate Property 'houndary <br /> U-5 � Forn%r Waste �j 10) p1 / <br /> (B 6) Oil T�tk �O / <br /> Farmer 41%.4:emoved 1967) `�orsa� I j / <br /> I nStation � Dispenser Ir z <br /> Building / <br /> 9 U_ island \0� <br /> \ 10 0P <br /> '(1 5) ^ <br /> .40 O <br /> Former Underground � y� Z (< 1} <br /> Former Waste Storage Tank Site �n <br /> Oil Tank -!'~ (removed 1967) o X <br /> (removed 1992) k- <br /> ' ♦ <br /> .oLL- <br /> U-3 / U-$ <br /> _ ` {1 7 < <br /> (75) .00 Dspnse .10 <br /> er x1IslansForm 'N! <br /> 0 40 <br /> Underground NP-1 <br /> I Storage Tanks —2 , V-1 (<0 1)I <br /> removed 1992) YNS) <br /> (<01) Scale in Feet <br /> EXPLANATION <br /> O NESTED PIEZOMETERS <br /> + GROUNDWATER MONITORING WELL <br /> 19 VAPOR EXTRACTION WELL <br /> EAST MINER AVENUE (<O 50) NITRATE CONCENTRATION <br /> --- NITRATE CONCENTRATION CONTOUR <br /> (NS) NOT SAMPLED <br /> CONCENTRATIONS IN Ng/L <br /> U-7 <br /> (<O 1) Source Figure Modified From Drawing Pro+nded <br /> Parking Br Getller — Ryon Int <br /> ISO CONCENTRATION MAP, SHALLOW GROUNDWATER FIGURE <br /> ARCADIS NITRATE AS NITRATE - FEBRUARY 5. 1999 6-5 <br /> GERAGHTY&MILLER FORMER UNOCAL SERVICE STATION NO 0187 <br /> 437 EAST MINER AVENUE, STOCKTON, CA <br />