Laserfiche WebLink
f. <br /> • 09 January 2003 <br /> AGE-NC Project No. 95-0114 <br /> Page 3 of 9 <br /> • CPT-5 was sampled between 51 feet and 55 feet bsg, between 70 feet and 74 feet bsg, and <br /> between 116 feet and 120 feet bsg; <br /> • CPT-6 was sampled between 46 feet and 50 feet bsg, between 71 feet and 75 feet bsg, and <br /> between 121 feet and 125 feet bsg; and <br /> • CPT-6 was sampled between 46 feet and 50 feet bsg, between 76 feet and 80 feet bsg, and <br /> between 116 feet and 120 feet bsg. <br /> The HydroPunch sample tool was pushed into the specific depth interval, then withdrawn <br /> approximately four feet to expose an inlet screen.The interior of the sampling tool filled with water <br /> and a 1-inch outer diameter(O.D.)stainless steel bailer was lowered and utilized to extract a ground <br /> water sample. <br /> Following sample collection, the samples were placed in laboratory-supplied containers, properly <br /> Y <br /> labeled and transported under chain-of-custodyto Cal Tech Environmental Laboratories,Inc(CTEL) <br /> of Paramount, a State of California Department of Health Services (DHS)-certified laboratory <br /> (#2424). The samples were analyzed for: <br /> i • Volatile organic compounds (VOCs)by EPA Method 8260 <br /> • Total petroleum hydrocarbons quantified as stoddard solvents (TPH-ss) by EPA Method <br /> 8015 Modified <br /> All rinseate generated during drilling activities was containerized in properly labeled DOT-approved <br /> 55-gallon drums, and was stored on-site in an area lacking public access. The twinned soil borings <br /> were backfilled over its entire depth with a bentonite/portland cement grout mix. <br /> 3.0. FINDINGS <br /> Soil parameters from the CPT reports were utilized to construct the vertical and lateral geologic and <br /> hydrogeologic models;the contaminant impact to ground water was quantified from the laboratory <br /> analytical data obtained from the investigation. <br /> 3.1. STRATIGRAPHY <br /> Based on the findings from the CPT soil borings and existing monitoring well and soil borings,cross <br /> sections A-A 'was constructed to depict general lithology beneath the site (Figure 3). <br /> Advanced GcoEnvironmental,Inc. <br />