Laserfiche WebLink
' 06 August 2004 <br /> AGE-NC Project No 95-0128 <br />' Page 6 of 11 <br />' 2 3 7 Equipment Decontamination <br /> All augers used were cleaned prior to advancement In each boring location The sampling equipment <br /> was washed in an Alconox solution and triple rinsed with water prior to each sampling run to avoid <br /> cross-contamination <br /> 1 <br /> 3.0. FINDINGS <br />' Analytical results of influent ground water samples and ground water extraction measurements were <br /> used to evaluated the volume of impacted ground water removed and mass of hydrocarbons treated <br />' Ground water elevations were determined by subtracting the measured depths to water from the <br /> surveyed casing elevations Ground water flow directions were determined by contouring the water <br /> elevations on a scaled site plan Contaminant impact to ground water and soil samples was assessed <br />' by laboratory analysis <br />' • 3 1 ANALYTICAL RESULTS OF WATER TREATMENT SAMPLES <br />' The ground water extraction treatment Influent samples were reported by laboratory analysis as <br /> follows <br />' 14 October 2003 - TPH-g was were detected at a concentration of 780 micrograms per liter <br /> (µg/1) BTEX compounds were detected at concentrations of 77 µg/1, 2 9 µg11, no <br /> ethylbenzene and 69 µg/1 MTBE was detected at a concentration of 320 µg/1 <br />' 18 November 2003 - TPH-g and TPH-d were detected at concentrations of 410 µg/1 and <br /> 1,800 µg/1 BTEX compounds were detected at concentrations of 300 µg/l, 12 µg/l, 85 µg/1 <br />' and 120 µg/l MTBE was detected at a concentration of 250 µg/1 <br /> • 26 December 2003 TPH-g was detected at a concentration of 490 µg/1 The only BTEX <br /> compound detected was xylene at a concentration of 14 6 µg/1 and MTBE was detected at <br /> a concentration of 360 µg/1 <br /> • 29 January 2004 - TPH-g was detected at a concentration of 490 µg/1 BTEX compounds <br />' were detected at concentrations of 320 µg/l, 2 7 µg/1, no ethylbenzene and 53 µg/1 MTBE <br /> was detected at a concentration of 430 µg/1 <br /> • 25 February 2004 - TPH-g and TPH-d were detected at concentrations of 440 µg/1 and <br /> 1,400 µg/1 BTEX compounds were detected at concentrations of 150 µg/1, 13 µg/l, no <br /> • ethylbenzenc and 100 µg11 MTBE was detected at a concentration of 180 µg/1 <br /> I <br /> Advanced GeoEnvironmental Inc <br />