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r <br /> EXPLANATION <br /> * Groundwater monitoring well <br /> —0.47 <br /> MW-12# O Conductor casing <br /> Approximaflow directi nuatwaater -5 ON-RpMp x Destroyed well <br /> 1-5 OFF-RAMP gradient at 0.02 Ft./Ft. a <br /> 99.33 Groundwater elevation in feet <br /> referenced to Mean Sea Level <br /> —0.45 MW-11 (MSL) <br /> Septic T- — ` `� Cb <br /> 1 \1999 Groundwater elevation contour, <br /> Seepage I% o 000, dashed where inferred. <br /> ` armor <br /> Troch Tr o Ir l w f TOC not available <br /> sgn N *MW-51 —1.20 MW-7 ,xo <br /> ` —0.55\ MW-4' sol StaWn NA Not Available <br /> MW-10 \ CS,-kyg - i k��. <br /> ;;. <br /> *-0. \ Stat ` = E 1 <br /> 363 eu,Tang \ ti t - — � � MwSs <br /> —0.44 <br /> 1 <br /> MW-3� <br /> lderground —0.49 <br /> E 't�ng9 <br /> e Tanks <br /> MW-1 ^ NA Ol 9 <br /> —0.62 pneer �- 'NA1 �OrO TA <br /> 1 \ � 58 <br /> Plan** <br /> rOG <br /> \\\ MW-2*%i,. —0.56 0� lop MW-6 ` Q� o <br /> \ \� <br /> o,tway ,t <br /> Approximate groundwater <br /> flow direction ata HARLAN ROAD .0e0 60 <br /> gradient at 0.01 Ft./Ft. <br /> M <br /> W <br /> -9 <br /> Scale in Feet <br /> —f.14 <br /> Source: Figure modiPed From drawing provided by RRM, Tait k Associates, and Alisto <br /> POTENTIOMETRIC MAP FIGURE <br /> GETTLER - RYAN INC. Tosco (Former BP Oil) Service Station #11195 <br /> 6747 Sierra ct., Suite J 16500 South Interstate 5 1 <br /> Dubin, G 94568 (925) 551-7555 Lathrop, California <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE <br /> 180175 August 10 2001 <br /> FILE NAME: P:\EnViro\Tosco\11195\001-11195.DWG I Layout Tab: Pot3 <br />