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March 26, 2001 <br /> NOA Environmental Project Number LE00-429 <br /> Page 9 <br /> • <br /> interval below the level believed to be contaminated may be analyzed to facilitate assessment of the <br /> vertical extent of contamination <br /> Di s osai of Contaminated or Potentiall Contaminated Matenal During Dnllin Operations <br /> if auger cuttings(bulk soils generated during the dnlling operation)produced during the advancement <br /> of the boring to their terminal depth are found to be contaminated, they will be placed in approved <br /> drums which will be sealed, labeled, and stored on site prior to disposal which will be conditional <br /> upon analytical results <br /> Soil Sam le Handling Methods <br />' Following all soil sample retrieval,aluminum foil will be placed over both ends of each stainless steel <br /> sleeve Both ends of the sleeves will then be sealed with a tight fitting plastic cap and secured with <br />' adhesiveless tape and labeled All soil samples will be preserved on ice and maintained at a <br /> temperature of approximately 4 degrees Celsius to limit the volatilization of any contaminants present <br /> The soil samples will be transported under chain of custody to a California Certified Laboratory for <br /> analysis All soil samples will be remanded to the custody of a California Certified Laboratory within <br /> 24 hours of retrieval Each sample will be tested pursuant to USEPA Test Method 8015 for Total <br /> Petroleum Hydrocarbons(TPH) as Diesel and BTEX <br /> Quali1y Assurance and Control Procedures <br /> Field work will be conducted by individuals meeting the Occupational Safety and Health <br /> Administration(OSHA)requirements for hazardous waste work including 40-hour health and safety <br /> training and medical monitoring <br /> Every effort will be made to follow the established sampling, transportation and chain of custody <br />' protocols to insure the integrity of the samples in the filed during transport to the laboratory <br /> Quality assurance and control procedures in the laboratory setting will consist of those measures <br />' commonly employed to insure the accuracy and quality of the data generated from the laboratory <br /> analysis of the individual soil sample The mimmum quality assurance and control procedures for this <br /> investigation will consist of spike analysis and duplicate analysis The quality assurance and control <br /> reports will be required from the laboratory for all samples that are analyzed and will be included in <br /> a technical report <br /> i <br /> t pERry N <br /> i <br /> Y � I <br /> G ~ <br /> t <br /> ~jS OGS I <br />