Laserfiche WebLink
' 24 October 2005 <br /> AGE-NC Project No 95-0167 <br /> Page 5 of 10 <br />' Interpretive log is presented in Appendix E <br /> Rinseate generated during drilling activities was containerized in properly labeled, DOT-approved <br />' 55-gallon drums The CPT soil boring was backfilled over its entire depth with a bentonite/portland <br /> cement grout mix <br /> 2 4 2 Grab Ground Water Sample Collection and Analysis <br />' Grab ground water samples were collected from a twin soil boring advanced immediately adjacent <br /> to the initial CPT sounding The samples were collected utilizing the 25-ton truck-mounted CPT drill <br /> rig equipped with 1 75-inch diameter hollow-stem rods fitted with a HydroPunch ground water <br /> ' sampling assembly,which was pushed to specified sampling depths in the soil boring, a diagram of <br /> the sampling assembly is provided in Appendix E <br /> Ground water samples were collected from specified depth intervals(zones)based on the acquired <br /> CPT lithologic data indicating favorable conditions for sampling The HydroPunch sampling tool <br /> was pushed into the specified zone,then withdrawn approximately 4 feet to expose an inlet screen, <br /> lie the interior of the sampling tool filled with water and a 1-inch outer diameter stainless steel bailer <br /> was lowered and utilized to extract a ground water sample <br /> ' Ground water samples were collected from the CPT boring location at the following intervals <br /> ' 0 Between 29 feet and 33 feet bsg, <br /> • Between 51 feet and 55 feet bsg, and <br /> ' 0 Between 76 feet and 80 feet bsg <br /> Following sample collection, the samples were placed in laboratory-supplied containers, properly <br /> ' labeled,and transported under chain of custody to CTEL for analysis All samples were analyzed for <br /> the constituents listed in Section 2 1 1 <br /> ' All rinseate generated during drilling activities was containerized in properly labeled,DOT-approved <br /> 55-gallon drums The twinned soil boring was backfilled over its entire depth with a <br /> ' bentonite/portland cement grout mix <br /> ' 3.0. FINDINGS <br /> Soil descriptions from the monitoring well installations and the computer-generated CPT lithologic <br /> ' Advanced GeoEnvironmental,Inc <br />