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PPE Levels of Protection Level D (to be used at all times) is as follows: • Full-length pants and shirt; • Sturdy safety-toe work boots; • Hard hat; • Safety glasses. Modified Level D (used as appropriate) is as follows: • Regular Tyvek coveralls; • Outer gloves: leather, cotton, or nitrile; • Inner gloves: latex or nitrile; • Sturdy safety-toe work boots; • Hard hat; • Safety glasses. Level C(used as appropriate) is as follows: • Half-face air purifying, canister equipped respirator(NIOSH-approved) equipped with Organic Vapor/HEPA cartridges/filters; • Regular Tyvek coveralls; • Outer gloves: leather, cotton, or nitrile; • Inner gloves: latex or nitrile; • Sturdy safety-toe work boots; • Hard hat; • Safety glasses. Level 8 (used as appropriate) is as follows: • Positive-pressure, full-face piece, self-contained breathing apparatus (SCBA) or positive-pressure supplied air respirator with escape SCBA (NIOSH-approved); • Disposable chemical-resistant coveralls (Polycoated Tyvek); • Outer gloves: neoprene or nitrile; • Inner gloves: latex or nitrile; • Sturdy safety-toe work boots; • Petroleum-resistant covers over work boots; • Hard hat. Decontamination Procedures Drilling and sampling equipment will arrive decontaminated and clean. All downhole soil and groundwater sampling equipment (e.g., sampling tubes, split spoons, hand augers, Hydropunch, etc.), tools, purge pumps, water level indicators, etc. will be decontaminated before, between, and after use with Alconox or an equivalent phosphate- free detergent solution to reduce the risk of cross-contamination. Decontamination of all sampling equipment will consist of submerging the equipment in a detergent solution bath and scrubbing it with dedicated brushes. The equipment will then be placed in a rinse bath and agitated.A second rinse bath should occur if needed. All drilling equipment such as augers and drilling rods should be thoroughly steam cleaned and rinsed. Nitrile outer gloves will be worn whenever handling samples, equipment, or any other potentially contaminated items. Skin exposed to direct contact with contaminants of concern will be immediately flushed with water. Partner Site-Specific Health and Safety Plan Page 6 Version 2.0 July 6,2021