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EB-2 GW T1-E 6Nf+,L TPHd 1,300 TPHd 240OC��ON Cx Concrete Seawall / TPHmo 3,200 TPHmo 10 s t / valve / TPHg X 50 TPHg 89 BTEX <0.005 \ teSide`1'lalk water BTEX <0..51 Tl-C 6' CW Coueve / 1 TPHd 890 1,100,000 \ star��ne EP 5 T T2-C 8' TPHmo 51 20,000 Abandonea W TPHd 1,900 T2 47 TPHg 360 2,500 \ \ Sheet-pile EB-2 TPHmo 17 \ Seawall TPHg 1,000 TPHmo 17 BTEX <0.025 <0.9 \ EP-5 BTEX <0.20 TPHg 87 UQ a B <0.025 T1-W T \ \ \ Tl-E T2-C __ y T <0.025 TPHd 51 \ Tl-C '- to E 0.036 TPHmo 32 X <0.025 TPHg 2.5 / T1-WI O �_�- \ T4-E G EB-3 GW BTEX <0.005 j 1 O EB-3 \\I EP-4 6 18' TPHd <40,000 1 ® �\ TPHd 16,000 270 TPHmo 800 EP-41 TPHmo <200 <10 TPHg 6,200 1 3 1 \ TPHg 660 270 � � � 1 O � ''� 1� /�' \ 1� BTEX <0.15 <0.05 B 9.3 STOCKTO -� � Ta-w �r ,-' PROMENADE T3-W T3-E E 20 T4-E 8' X 24T3-W 6' / / = EB-1 TPHd 470 / EP-2 \ \ �,i�� \ \ TPHmo ND TPHd 400 \ TPHg 920 TPHmo 24 / ��\/ �/'� \ \ EP-3 7' B <0.20 TPHg <1.0 _EP-6T <0.20 BTEX <0.005 / \\\ \ (no samples colla tE 2.5 c`ed) \ TPHd 860 \ \ TPHmo <10 EP-1 (under construction) 1 x 6.5 TPHg 300 10\% ne BTEX <0.05 �� Water li T3-E 6 TPHd 280 / \\\ TPHmo 32 //// \ EB-1 8' 16' GW TPHg 170 EP-2 T % / j \ TPHd 780 350 <1,000,000 BTEX <0.025 TPHd 1,000 Fence \ TPHmo 14 <10 5,100 TPHmo 21 / j �� \ \ TPHg 440 430 23,000 TPHg 580 / B <0.05 <0.05 2.9 BTEX <0.09 / T4-W 8 T <0.05 <0.05 1.6 TPHd 220 TPHmo 36 E <0.05 <0.05 7.5 Note: Adapted from a CAD file provided EP-1 7' 15' \ TPHg 1 X <0.15 < .15 .5 by the City of Stockton. TPHd <1.0 910 / Waterfront B 0.055 2 All locations area roximate. TPHmo <10 16 Towers T 0.10 pp TPHg <1.0 1,600 Parking Lot E 0.84 BTEX <0.005 <0.25 1X 1.68 Legend:Former underground storage tank '�i Fire hydrant(removed) - Extent of Waterfront Tower ownership BTEX Benzene,Toluene,Ethylbenzene,and total Xylenes Soil results in milligrams per kilogram(mg/kg)as parts per million N --- Abandoned petroleum piping A Geoprobe sampling location ND Not detected above laboratory reporting limits CW and GW results in micrograms per liter(gg/L)as parts per billion • Excavation sample location TPHd Total petroleum hydrocarbon-as-diesel CW Tank contents(liquid) • Test pit sample location TPHmo Total petroleum hydrocarbon-as-motor oil GW Grab groundwater sample 0 5 10 iI Approximate excavation limits TPHg Total petroleum hydrocarbon-as-gasoline < Less than laboratory reporting limits SCALE IN FEET FORMER EDISON STREET UST AREA FIGURE 4 DRAWN BY TJC Wa I I e c e Ku h I SHOWING PETROLEUM HYDROCARBON RESULTS CHECKED BY SAA a ASSOCIATES INC STOCKTON WATERFRONT PROJECT MGR SAANNi DATE 4/09 Stockton, California WKA NO. 7345.09