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06-Mar-01 <br /> L Q Y <br /> O <br /> O cv <br /> EXPLANATION C _ � <br /> O O � <br /> Groundwater monitoring well O = Z; <br /> Groundwater elevation contour in feet C <br /> referenced to mean sea level (ft msl). M <br /> -� Arrows indicate approximate groundwater 3 V <br /> flow direction. C <br /> C O <br /> D AVENUE -5.67 Groundwater elevation in ft msl = O <br /> ELw°° (110) Benzene concentration in parts per @ <br /> 6 billion(pph) v <br /> A _ (243) MTBE concentration in ppb by EPA Method .E <br /> S <br /> -5 -8.55 8260. � <br /> + -8.53 (<0.50) <x Not detected at detection limit x V <br /> —-- (<50)f (<5.0) <br /> (32) Approximate hydraulic gradient=0.001 <br /> APN <br /> W <br /> -g,g 113-042-4 <br /> Z APN APN APN <br /> 113-042-1 113-042-2 113-042-3 <br /> x <br /> \\ Q <br /> S-3 Cie <br /> -- �— <br /> (1.6) <br /> (<5. <br /> (<5.0) Q <br /> I BP/76 <br /> Service Station <br /> p <br /> APN r i Former Waste .8 8.42 <br /> 123-232-46 ` i Oil UST (24) <br /> r <br /> -8.29 i (<5.0) <br /> (21) Former USTs <br /> (59) <br /> o Former Bank of APN APN <br /> the West Branch 113-042-14 113-042-13 <br /> Former UST <br /> S-4 <br /> +-8.27 C <br /> (<5.0)) Sidewalk ._.. _ <br /> I 4-0M <br /> Q <br /> V � <br /> COUNTRY CLUB BOULEVARD -� a <br /> c� 0 <br /> CA m <br /> � � E <br /> Scale(ft) FIGURE o <br /> 040 40 80 <br /> U � <br /> E U <br /> O t° <br /> U— <br />