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U-9 –18.51 EXPLANATION <br /> 18.50) Groundwater monitoring well <br /> Approximate Property Boundary –18.27 <br /> . . I .. . . . .— z Vapor Extraction Well <br /> –18.05 U-5U-4 <br /> .. .... ... <br /> .. .... Former ♦ r F 99.99 Groundwater elevation in feet <br /> Waste Oil <br /> Ul referenced to Mean Sea Level <br /> Former Former I Tank WDispenser cc (MSL) <br /> Station <br /> Fi Buil Island <br /> ding <br /> U-1 8.0 <br /> Groundwo <br /> ter elevation contour, <br /> 8 dashed where inferred. <br /> Former Underground I z <br /> cc <br /> Former Storage Tank Site 0 <br /> Waste Oil--" -18.15 1 LL <br /> Tank U-3 ' -1 <br /> Former U-8 <br /> -8 <br /> U \ Dispenser <br /> -17.30 islands Uv-1 I 18.34 <br /> Former .......V* <br /> Underground U-2 1%; 8.04I <br /> Storage Tanks -18.00 <br /> C, <br /> EAST MINER AVENUE Approximate groundwater I <br /> flow direction at a 0 40 <br /> gradient of 0.003 to 0.01 Ft./Ft. <br /> Scale in Feet <br /> ................ ................................................................. .... <br /> *U-7 S,.,,,: ng" Mod"fied From Draaing Prodded <br /> -17.61F— By MPDS S.Mcw. kr- <br /> Parking — I I . FIGURE...... <br /> Ryan Inc. POTENTIOMETRIC MAP <br /> EWA Gettler - Former Unocal Service Station No. 0187 <br /> 3 <br /> 6747 sierra CL, Suite J (925) 551-7555 437 East Miner Avenue <br /> Dub6n, CA 94568 Stockton, California <br /> ED DATE <br /> JOB NUMBER REIAEWED BY UAI� <br /> 280045 March 9 1998 <br />