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ESTIMATED POND WATER N <br />LEVEL ON 4-21-01 i i APPROXIMATE' POND } <br />SHORELINE PRIOR TO 81G LAKE <br />~ PUMPING IN MARCH 2001 APPROXIMATE POND <br />I ' SHORELINE PRIOR TO <br />r rPUMPING IN 2006 <br />S„NSE- LAKE <br />r r / ~ <br />/ r 1 <br />4808 rf ! <br />/ <br />at}ARRY ?ONO <br />r / DR 02 <br />~ + SI IIRR1 41 I IRRY WAI I <br />NOW - 22 0 I \ - - <br />QUARRY POND r / _ 1.04 0 <br />0 <br />PIPELINE M'A'-1 ~M'N-~R RELEASE l 653 <br /> AREA T tdY}~'~R 1260 10- 124E - - 4844 <br /> EVE-1~ AS ~1 MN-4R---- ~,_.2. _ -4815 <br />00 <1 r / 48/07 <br />2749 2t~ _ la-2o W <br />0 V1Y-1 51_ VKNN <br />27 GAUGE STA'ION 02 <br />4807 f7i 4808 J Mw-' H. 4813 VIN 1 <br />SIIIRRYWAI I MW-1-5 227 RNER <br />' 313 226 T. 0 <br />ST. VRAIN ESTIMATED EXTENT OF <br />192 s WN-SR 51 rr GAUGE STATION BENZENE IN GROUNDWATER ' 4814 _10 Mw EXCEEDING <br />5 UGIL AS OF 4.21.07 *MW-12 120 <br />.r <br />f ' , 1 SC~I_C N SCALE N F---E- <br />4815 <br />' t FIGURI FIGURE 8 <br />4a1s _ _ ' -1"-'l`. r It L f LEGEND BENZENE IN GROUT IZENE IN GROUNDWATER AND <br />POTENTIOMETRIC 'ENTIOMETRIC SURFACE MAP <br />' ~ _ - - - ~ >~P~:,?~ 412110 2740 = BENZENE CONCENTRATION IN Nor 1 R NLV ~rOF5NG NEU aXAIr (4121107) <br />` AROI INnWATFR 11 IRII 1 <br />POTENTIOMETRIC CONTOUR (FT-MSL) + s r-rit STMT axACF c+uct BAYSHORE PIPEL ,YSHORE PIPELINE RELEASE <br />FIRESTONE, C , ~ FIRESTONE, COLORADO <br />GROUNDWATER FLOW DIRECTION y ` u AftDCNED WOWTORPOc WELL LCCA*10% <br /> NEW GROUNDWATER MONITORING E-21 Engineerinc <br />0 SYz-1 SotL VAPOR Lxt>utrtON at,ot TEST WEiL WFI I I OCAMN ~ AS-' AIR SPMGE PILOT TEST .Et. igineering Inc. <br />- - Lnrrc-nenty LnqOwwkq M• the 21 '900wi'9 M the 21st Genhvy <br />1695 S kerlta Street ' Frngeeood, Ulara& 90,10 Street Cod* 9o•ta r5/3cl/Q7 <br />