Laserfiche WebLink
. quality assurance/quality control procedures The samples are transported in a chilled container to <br /> a state-certified, hazardous waste testing laboratory <br /> Cuttings from the soil borings are stored in 55-gallon, U S Department of Transportation <br /> (DOT)-approved drums, roll-off bins, or other appropriate containers, as approved by the client <br /> Each container is labeled with the number of the soil boring(s) from which the waste was <br /> derived, the date the waste was generated, and other pertinent information The drums are stored <br /> at the site of generation until sample laboratory analytical results are obtained, at which time the <br /> soil is disposed of appropriately A soil boring log is completed for each soil boring and includes <br /> the following minimum information <br /> • date of drilling, <br /> • location of soil boring, <br /> • project name and location, <br /> • soil sample names and depths, <br /> • soil descnptions and classifications, <br /> • standard penetration counts (rigs), <br /> • photoionization detector readings, <br /> • drilling equipment, <br /> • soil boring diameter, <br /> • sampling equipment, <br /> • depth to groundwater in soil boring, <br /> • name of person performing logging, <br /> • name of supervising registered geologist, and <br /> • name of drilling company (rigs and direct push) <br /> 3 Soil Boring Completion Procedures <br /> All soil borings are either properly abandoned or completed as a well <br /> 3.1 Abandonment <br /> Each soil boring that is not completed as a well is backfilled with bentonite grout, neat cement, <br /> concrete, or bentonite chips with a permeability less than that of the surrounding soils, and/or soil <br /> cuttings, depending on local regulatory requirements or client instructions Grout is placed by the <br /> tremie method Backfilling is performed carefully to avoid bridging The type of backfill material <br /> is noted on the soil boring log <br /> Main\D\Environmental\ParmarTexaco\Workpla"42003 wpd 4 <br />