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I <br /> 07-Jan-02 <br /> Ortho l� I ._ CLCp Y <br /> Mattresslack In The Box I EXPLANATION 2 M N <br /> California Bagle Co E o <br /> Groundwater monitoring well 4) C <br /> Vapor extraction well V W E <br /> PORTER AVENUE ® Soil boring location d <br /> MW-2 ® Proposed groundwater monitoring well V C <br /> -2075 MW-1 1,060/4 63133 8/50' TPHg/Benzene/MTBE concentrations V <br /> (0.52) -2087 <br /> {<5 O) (<0 50) m groundwater in ppb/Depth in feet <br /> VES,-2 MTBE by EPA Method 8260B <br /> NA Former Dispenser (<5 0) <br /> (2,400) USTs Islands + Groundwater elevation contour in feet C <br /> Existing referenced to mean sea level (ft msl) <br /> (<25) UST I <br /> Location Arrows indicate approximate <br /> MW-5 groundwater flow direction <br /> -2049 6970 ' Groundwater elevation in ft msl <br /> Fr <br /> VEW-1 SB-6 <br /> (<0 50 1,06014 63/33 8/50' parking Lot Stri Mll Custom (0 53) 1 Benzene concentration in ppb <br /> ((<50) h 1,300137 6/<5 00160' paFrame (<2 5) , MTBE concentration in ppb by <br /> ,yo 95 311 761<0 500/70' Shop EPA Method 8260 <br /> SB-5 Canopy 14011 36X0 500/80' <br /> 283,000/51,900/<1,250/50' o 0 1,67012 68/<2 50190' X Not available <br /> <x <br /> 742136 7/C2 50160' 445/1 72/<0 500/97' W < Not detected at detection limit x <br /> 15112 29/<1 00171' *MW-3 f� <br /> 0 — 131/3 14/<0 500/85' --2067 MW-4 W4 Note Groundwater samples were collected from <br /> -2091 H SB-5 and SB-6 on May 23-25,2000 <br /> 118/4 86/<0 500/97' (0 64) (33) Q <br /> DO Approximate hydraulic gradient=0 003 <br /> �i (��) Parking Lot 5 9) <br /> P MW-6 a <br /> ® m <br /> -2077 N MW-8 <br /> (26) ® W I Q <br /> �<5 0) <br /> V <br /> Petco <br /> W <br /> Venzon Parking Lot <br /> Wireless W <br /> V <br /> MW-7 <br /> -20.86 V <br /> (3,800) <br /> (<200) a N = <br /> O <br /> MW-11 <br /> -2063 ® MW-9 4." <br /> (<1 0) I t <br /> W <br /> (<5 0) 20 -1 J Marengo Scale(ft) V <br /> (<5.0) Parking Lot Center .L <br /> (��} (Strip Mgll) 0 30 60 320 N <br /> Strip Mall _ a� <br /> Payless S i (D C: <br /> ini Storage °G° S > <br /> p FIGURE V U <br /> Alleyway =LO <br /> o <br /> Cl) <br />