|
samples from the groundwater treatment and discharge component of the vapor extraction system were not
<br /> collected during February 2006, since the system was not operating
<br /> ' Vapor Analytical Results
<br /> Influent and effluent vapor samples were collected from the vapor extraction system during the first quarter
<br /> 2006 on January 24 and March 23, 2006 Influent and effluent vapor samples were not collected from the
<br /> vapor extraction system during February 2006, since the system was not operating
<br /> Gross range organics(GRO), the TPHg equivalent, was detected In the influent vapor samples collected on
<br /> January 24 and March 23, 2006, at concentrations of 6 4 parts per million by volume (ppmv) and 41 ppmv,
<br /> ' respectively Benzene was detected In the influent vapor samples collected on January 24 and March 23,
<br /> 2006, at concentrations of 0 073 ppmv and 0 97 ppmv, respectively Toluene was detected In the influent
<br /> vapor samples collected on January 24 and March 23, 2006, at concentrations of 0 45 ppmv and 0 95 ppmv,
<br /> respectively Ethylbenzene was detected In the influent vapor samples collected on January 24 and March
<br /> ' 23, 2006, at concentrations of 0 11 ppmv and 1 7 ppmv, respectively Total xylenes were detected in the
<br /> Influent vapor samples collected on January 24 and March 23, 2006, at concentrations of 0 38 ppmv and
<br /> 11 4 ppmv,respecttvely MTBE was detected In the influent vapor sample collected on January 24, 2006,at
<br /> ' a concentration of 0 11 ppmv TBA, TAME, ETBE, DIPE, 1,2-DCA, and EDB were not detected to the
<br /> influent vapor samples collected on January 24 and March 23, 2006
<br /> ' GRO was detected in the effluent samples collected on January 24 and March 23, 2006,at concentrations of
<br /> 0 11 ppmv and 17 ppmv, respectively Toluene was detected In the effluent sample collected on March 23,
<br /> 2006, at a concentration of 0 18 ppmv Ethylbenzene was detected In the effluent sample collected on
<br /> March 23, 2006, at a concentration of 0 054 ppmv Total xylenes were detected in the effluent sample on
<br /> March 23, 2006, at a concentration of 0 52 ppmv BTEX, MTBE, TBA, TAME, ETBE, DIPE, 1,2-DCA,
<br /> and EDB were not detected In the effluent vapor sample collected on January 24,2006 Benzene, MTBE,
<br /> ' TBA, TAME, ETBE, DIPE, 1,2-DCA, and EDB were not detected In the effluent vapor sample collected
<br /> on March 23, 2006
<br /> ' A summary of vapor analytical data is provided In Table 4 Groundwater laboratory data sheets and cham-
<br /> of-custody documentation are contained In Attachment 4
<br /> tWater Treatment System Analytical Results
<br /> The influent, vessel 1, and effluent water samples from the treatment and discharge component of the
<br /> vapor extraction system were sampled during the first quarter 2006 on January 24 and March 23,2006
<br /> TPHg, BTEX, MTBE, TBA, TAME, ETBE, DIPE, 1,2-DCA, and EDB were not detected In any of the
<br /> Influent, vessel 1, and effluent water samples collected on January 24, 2006, from the treatment and
<br /> discharge component of the vapor extraction system TPHg and total xylenes were detected In the
<br /> influent water sample collected on March 23, 2006, from the treatment and discharge component of the
<br /> vapor extraction system None of the remaining analytes of interest were detected In any of the influent,
<br /> ' vessel 1, and effluent water samples collected on March 23, 2006, from the treatment and discharge
<br /> component of the vapor extraction system
<br /> A summary of analytical results Is presented In Table 5 Groundwater laboratory data sheets and chain-
<br /> of-custody documentation are contained In Attachment 2
<br /> ' s le9viro1625961quarHy\1gr-2006 doc 6 ATC ASSOCIATES INC
<br />
|