WORK PLANS - Laserfiche WebLink

Home Browse Search

B CDIM Standard Operating Procedure ,M SOP 5.0 Equipment Decontamination E N 0 1 N E E E I X 0 Rev. 0 10/23/20 • Pumping lines will be washed with a laboratory-grade detergent solution. • The equipment will then be rinsed twice with tap water, followed by a rinse with deionized water. • Air dry the rinsed equipment. • Place decontaminated equipment on clean plastic sheeting to prevent contact with contaminated soil. If equipment is not used immediately, cover or wrap the equipment in clean plastic sheeting or bags to minimize airborne contamination. • Decontamination activities will be documented on the FAL or other appropriate form(s), as specified by the project work plans. 8. WELL MATERIALS DECONTAMINATION Well materials, including well casing, well screens, centralizers, and end caps, will be decontaminated prior to use in constructing monitoring wells. (If factory-cleaned, hermetically sealed materials are used, no decontamination will be necessary, provided that laboratory decontamination certification is available upon receipt of the equipment.) The standard procedure outlined below must be performed when decontaminating well materials. • Appropriate personal protective equipment will be worn by all personnel involved in the task, in accordance with the project work plans. • Materials will be thoroughly sprayed and washed with water using a high pressure steam cleaner. • Air dry the rinsed equipment. • Decontaminated materials will be placed on clean metal racks or clean plastic sheeting. If equipment is not used immediately, cover or wrap the equipment in clean plastic sheeting to minimize airborne contamination. • Decontamination activities will be documented on the FAIL or other appropriate form(s), as specified by the project work plans. 9. DOWNHOLE EQUIPMENT DECONTAMINATION All downhole drilling and development equipment (including but not limited to drill pipe, drive casing, drill rods, bits, tools, bailers, etc.) will be thoroughly decontaminated before mobilization onto each site and between borings or wells at each site or as required in the project work plans. Decontamination will be performed in accordance with this SOP and the project work plans. The standard procedure will be performed as described below. • Appropriate personal protective equipment (as specified in the project work plans) must be worn by all personnel involved with the task to limit personal exposure. • Equipment caked with drill cuttings, soil, or other material will initially be scraped or brushed. 4