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EXPLANATION + <br /> t MW-2 Monitoring well location i 90PT <br /> MW=1 Groundwater extraction well location t <br /> t <br /> DW-2 Deeper monitoring well location tf / <br /> (not used in contouring) t / <br /> DW-1 0 Destroyed well location <br /> 38^J f a <br /> — — —�E— Overhead electrical line OE EM <br /> � l a <br /> — — — E- - Electrical line(E) !� / 42^J <br /> — — — ,— Unknown utility line(?) II / 39^J 'B 90^ . ! <br /> t I 1e * <br /> Sanitary sewer line(SAN) t / r, * /�' 0 50 1 ooft <br /> s <br /> — --- �- w-- Water line(W) i i / <br /> 971 >< <br /> — — — P— Product piping line(P) 14Opo / ! <br /> !li ` -* <br /> Fenceline ►t 20 1uu':i A_ / 10,UQ0 pp! ~" L` f // F ND <br /> I / phi ��/ <br /> --`- --- — — Groundwater extraction � t �� I � O � , I � ,6 I , ,a <br /> system piping 9t ; / ,� O <br /> 100 TPHg isoconcentra#ion contour, ti 1 /` I o� o q/, <br /> in micrograms per liter(pg/i_), ir <br /> dashed where Inferred 1 i ! f !r!, % a 500 ` i <br /> rWell designation 1i tt !! ��/\ 839l 45o^ usaoo <br /> TPH --TPHg concentrations are in pglL 1 tt ! /'I'/7.OA0_ 10Q ' _11-000 : ' „2No ' !l i'iMMf <br /> �/ _ ND <br /> J <br /> Notes: <br /> was detected at a concentration below - ! CDP <br /> ! '! f// � i v �'% z�^ X17 <br /> the reporting limit and above the laboratory method 't �/ 5 /� ' f 4 "y134"Ji �I <br /> detection limit. Reported value is estimated. <br /> ND=Not detected F i I ! I I 1Q,UOQ /3anpelM001 <br /> cedng^=Analyte present in associated method blank. `--t_ i I !° !,I i!f ' � ,�; '°I P—w Rwty <br /> 100 <br /> 1,000 <br /> 8 444^ e.2104D^ eso <br /> # 0� 1t = 4 840 IMM <br /> L-36-0-j <br /> ND' <br /> FND UVV 1 <br /> q ® 'Pd Tosco <br /> 2 800^ 354 <br /> , <br /> �- <br /> � <br /> 1 _ ND ND <br /> Figure 4 <br /> �_ ' <br /> L—_ �.___ t ��� _� <br /> FND <br /> - -- �_ , ���` L.-__ /; TPHg in Groundwater <br /> �`�— =�_---__-_- _---- ---.--d Isoconcentration Map <br /> ND ��,'I� -- --_ __- _-- -�, August 30-31, 2010 <br /> Shell Stockton Terminal <br /> 3515 Navy Drive <br /> Stockton, California <br /> I:1Shelll6-chars12417-1241729-Stockton 3515 Navy Drive\241729-REPORTS1241729-RPT28-3Q10&4Q1 OQ41729 3QM10-TPHG.DWG(01/27/2011) <br />