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""`.' �` ".� �� �s�-�"^ � �n�„�r�- '� T :��..�" P:_�.. -"-" � .r�.��•'x�.-.i,.� ;;� 'k",� _ - '�} 'y ,�' �� `fit ���"'-t- '.�y ., <br /> gUALITY ASSURANCE <br /> The Quality Assurance plan is based on the attached protocols, <br /> Standard Operating rating Procedures, and forms. Tht contract <br /> analytical laboratory, Canonie Environmental , has supplied Du <br /> Popt with copies of their quality assurance program. The <br /> specific manner of water collection will vary with, different <br /> procedures used for purging the wells and for sample collection. <br /> Samples for hydrocarbon and microbiological analyses will be <br /> collected aseptically so as to reduce microbial contamination or <br /> loss of benzene, toluene, and the xylenes through volatilization. <br /> All analyses required by the Regional Water Quality Control Board <br /> will be analyzed in a California-approved analytical laboratory <br /> i <br /> which meets or exceeds the quality control standards of the U.S. <br /> Enviros'.,mental •P-rot'tti"on,Agency and tae U.S. Public Health <br /> Service. Other"41mpl'e analyses performed as part of a research <br /> program will be analyzed where most appropriate. i <br /> Auditing of the responsible laboratories and field collections <br /> :and field analyses will be performed by .the Du Pont Quality E <br /> x, 1 <br /> ,. Assurance O.ffi,.e-, J. A. Kron, or designate. The .Chain.-•of- ; <br /> Custody procedures used will conform with the applicable laws <br /> and regulations, as well as the standards of professional ' <br /> practice. Du Pont- sample labels and chain-of-custodyforms will, <br /> be -used to track: all samples and assure proper sample handling. <br /> � r <br /> Reports will be. reviewed and signed ,by' the .Quality Assurance <br /> s <br /> " Officer prior to report submission. to. Kayo. . <br /> ._._ _.__ __ .--.._ --.- __- ____- _ _------ <br /> -42.- <br /> � <br />