Laserfiche WebLink
FIELD METHODS <br /> TES personnel sampled soil at McDonald Islands POI operating area on September 30, 1996 and <br /> October 2, 1996 The methods used are summarized below <br /> SOIL SAMPLING <br /> Soil samples were collected with a stainless-steel trowel and placed into pre-cleaned glass jars supplied <br /> by the laboratory At sample location 1, soil samples were obtained by coring down to a total depth of <br /> 14 ft using an hand coring device called an Extended Soil Probe (ESP) The ESP collects one-Inch <br /> diameter, 3-foot long soil cores in dedicated acetate liners The acetate liner is placed in a core barrel, <br /> which is driven into the soil with a 12 5-pound slide hammer The core is then removed with afoot jack, <br /> the desired interval of the liner with soil was selected, labeled,covered with Teflon tape or aluminum <br /> foil, and capped for chemical analysis <br /> SAMPLE HANDLING <br /> Each capped and labeled sample container was placed in a zip-lock plastic bag and then into a cooler <br /> containing ice A chain of custody was filled out with sample identification, date and time of sample <br /> collection, the requested analyses,the sampler, and the sample location Chain of Custody procedures <br /> were used to document the handling and shipping of the samples from collection to the analytical <br /> laboratory, where the laboratory's internal procedures governed until final disposition of the samples <br /> Samples were delivered to Chromalab,Inc in Pleasanton, CA, a California-certified analytical <br /> laboratory <br /> PERSONNEL AND PROCEDURES <br /> All environmental work described in this workplan was performed under the direction of a California <br /> Registered Geologist <br /> QUALITY ASSURANCE/QUALITY CONTROL AND CHAIN OF CUSTODY PROCEDURES <br /> Quality assurance samples were used to evaluate the quality of the data obtained from the field program <br /> QA/QC procedures for analytical operations included sample custody procedures,analyses of matrix <br /> spikes and method blanks, verification of raw analytical data,and maintenance of control charts to <br /> monitor analytical performance These QA/QC procedures are outlined in the laboratory Quality <br /> Assurance/Quality Control Plan which is available upon request Organic chemical analyses were <br /> 96175612774MD1ksl73w <br />