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<br /> 30 November 2005
<br /> AGE-NC Project No 96-0235 r i'
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<br /> Ground,waier'samples were collected from specified depth intervals (zones)based'on the'acquired}"
<br />' CPT-llthology data indicating favorable conditions for sampling 'To collect ground water samples,
<br /> n, a HydroPuncli sampling tool was pushed into the specified zone,then withdrawn approximately four
<br /> ` - feet'to expose an{lnlet screen, the interior of the sampling tool filled with water and'a '/2-inch outer ;
<br />' diameter (O D ) stainless,steel bailer was lowered and utilized to extract a ground water sample
<br /> Ground water samples were collected from dedicated borings at the following intervals ,
<br /> • CPT-10'was sampled between 22 and 25 feet bsg and between 73 and 76 feet bsg, "
<br /> • CPT-1 I was sampled between 25 and 28 feet bsg and between 65 and 68 feet bsg, '
<br /> CPT-12 was sampled between 81 and 84 feet bsg, 98 and 101 feet bsg, 134 and 137 feet bsg, le
<br /> 152 and 155 feet
<br /> bsg and 182 and 185'feet bsg,
<br /> ' CPT-13 was sampled between 53 and 57 feet`bsg and + '
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<br /> • Boring CPT-14 was sampled between 74 and 78 feet bsg -
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<br /> 24 , ANALYTICAL METHODS''
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<br /> Grab ground "water samples were transported to Cal Tech Environmental Laboratories (CTEL), a
<br /> ',DHS-certified laboratory, for,analysis Samples were analyzed for "
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<br /> • Total petroleum hydrocarbons quantified as gasohne (TPH-g) and as diesel (TPH-d) in
<br /> accordance with EPA_ Method 8015M,
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<br /> • Benzene,toluene,,ethylbenzene and total xylenes(BTEX),in accordance wrth'EPA Method` s_
<br /> 8260B,,
<br /> Fuel additives including - dl-isopropyl ether (DIPS), ethyl tertiary-butyl ether (ETBE)„
<br /> ' 'methyl tertiarybutyl tether (MTBE), tertiary-amyl -methyl ether (TAME)'_tertiaiy-butyl, r
<br /> alcolial>(TBA), ethanol, methanol, 1,2;dibr6moethane (EDB) and 1,2-dlchloroethane (1,2-
<br /> r + DCA) in accordance-with EPA'Methodrt,8260B r
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<br /> 2-5 MONITORING WELL INSTALLATION, DEVELOPMENT AND SURVEY,, `
<br /> Ten groundwater monitoniij'wells(MW-1 6through MW-24 and EW-1)wervinstalled between,10
<br /> and 19 October 2065,'developed on between 14 and 25 October 2005, and sampled'following each
<br /> wells respective development 1 ,
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<br /> I Advanced GeoEnvlronmental,Inc
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