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Environmental Science st Engineering <br /> 0 Mom I M Construction <br /> •DaVelopment•Industrial•Municipal <br /> VEIN <br /> t•a.•••.... 45 Falk Street,3rd Fluar•San Frahclsca.Calftrnla 94102-413.490.0535• dlmeitig+neeyngFam <br /> CDIM Standard Operating Procedure <br /> 5.0 Sampling Equipment Decontamination <br /> 1. PURPOSE <br /> This Standard Operating Procedure (SOP) establishes guidelines and procedures for use <br /> by field personnel in the decontamination of sampling equipment and well construction materials. <br /> Proper equipment decontamination is essential in ensuring the quality and integrity of samples <br /> collected during a given sampling event. Additional specific sampling equipment and well <br /> material decontamination procedures and requirements will be provided in the project work plans. <br /> 2. DEFINITIONS <br /> Deionized Analyte-Free Water - Ion-free, analyte-free water produced on site or <br /> purchased from a supplier with a deionization chamber equipped with a carbon filter. <br /> Potable Water-Treated municipal water or other drinking-grade water. <br /> Laboratory Grade Detergent - A standard brand of laboratory-grade detergent, such as <br /> "Alconox" or"Liquinox." <br /> Methanol - Laboratory-grade methanol alcohol, CAS#67-56-1. <br /> Hexane- Laboratory-grade hexane, CAS#110-54-3. <br /> HPLC Water- High performance liquid chromatography-grade water. <br /> 3. PROCEDURE <br /> This section contains responsibilities, requirements, and procedures for sampling <br /> equipment and well material decontamination. The decontamination is required to maintain <br /> proper quality and integrity of collected samples. <br /> The details in this SOP should be used in conjunction with the project work plans. The <br /> project work plans will provide the following information: <br /> • Types of equipment requiring decontamination under this SOP; <br /> • Specific materials to be used for the decontamination; and <br /> • Additional decontamination requirements and procedures beyond those <br /> covered in this SOP, as necessary. <br /> All field personnel associated with decontamination of sampling equipment or well <br /> materials must read both this SOP and the project work plans prior to implementation of related <br /> decontamination activities. <br />