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Equipment Decontamination SOP 4.0 Cautions and Interferences: Cautions associated with conducting this procedure include: • The use of distilled/deionized water commonly available from commercial vendors is typically acceptable for decontamination of sampling equipment. • The use of an untreated potable water supply is not an acceptable substitute for tap water. Tap water may be used from any municipal or industrial water treatment system. • If solvents are utilized in decontamination, they raise health and safety, and waste disposal concerns. • Damage can be incurred by solvent washing of complex and sophisticated sampling equipment. • Solvent rinses should be applied from individual plastic squeeze bottle, labeled as to content, and not poured/applied directly from the manufacturer's container. Use ofplastic squeeze or spray bottles minimizes the generation of solvent or acidwaste. Interferences having the potential to impact the quality of the final product include: • Improperly decontaminated sampling equipment can result in sample cross contamination, and transfer of contaminants to clean areas. 5 Q Personnel Qualifications/Responsibilities: Personnel performing this procedure are required to have the following qualifications: • HSSE Training in accordance with Health, Safety, Security, and Environment Practice • Antea Group personnel must have sufficient training to meet the project objectives and be approved/calibrated in the Antea Group Workforce Optimization Database for SOP implementation. The minimum roles involved and their responsibilities in this procedure include: • Project Manager (PM)—Responsible for evaluating, communicating, and upholding the regulatory, client, and other applicable requirements associated with performing this procedure as part of a project-specific scope of work. • Project Professional (PP)—Responsible for creating project-specific assignments where this procedure is required and ensuring execution of this procedure, in accordance with the identified requirements described in this procedure. • Staff Professional(SP)—Responsible for implementing project-specific assignments where this procedure is required and ensuring execution of this procedure, in accordance with the identified requirements described in this procedure. fiQ Equipment/Supplies: The following is the typical list of equipment required for completing this procedure: • Field Safety Equipment Bag • Traffic control devices, as defined in Site Control Policy • Field logbook and appropriate field form(s) • Waterproof permanent pens and markers • Mobile phone - with clock and camera feature • Spare locks - for buildings, compounds, and well covers (if appropriate) Control#:AG-20001-00 Page 4 of 8 File Name:Equipment Decontamination SOP