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Sep -02-99 01:05P Evan= gvothi vs Inc. 925 -13 0229 P.10 Gateway Project - Stockton, CA Evans Brothers Inc. Level C: Should be selected when the types of airborne substances are known, the concentration is measured, and the criteria for using air -purifying respirators are met. • Air purifying respirator, NIOSH approved, with HEPA or organic vapor cartridges • Tyvek suits (if splash hazard is possible, a coated suit must be wom) • Butyl nitrile rubber or neoprene gloves • Work boots • Outer boots/chemical resistant • Inner disposable gloves (two pairs recommended) • Hard hat • Fluorescent vest (as appropriate) • Hearing protection (as appropriate) Level D: General work clothing is applicable for most work on this project. Changes in the nature of materials may require the use of additional protective equipment. • Hard hat (required) • Work boots (required) • Butyl nitrile rubber or neoprene gloves (as appropriate) • Splash goggles/safety glasses if potential for splash (as appropriate) • Fluorescent vest (as appropriate) • Tyvek Suit (as appropriate) • Hearing protection (as appropriate) • Fall protection (as appropriate) 3.3 Required Protection It is not anticipated that protective equipment beyond Level D will be used for this project. Evans Brothers, Inc. and its subcontractors will provide their respective employees with appropriate personal protective equipment as required. 4. WORK ZONE AND SECURITY MEASURES 4.1 General The work site will be controlled to reduce the possibility of exposure to any contaminants present and their transport by personal or equipment from the site. Minimize the number of personnel and equipment on site consistent with effective operations. Establish control points to regulate access into work areas. Minimizing the airborne dispersion of dust off site. Site specific preparations to best ensure the safety of the general public may change depending on the actual environmental conditions and the work procedures to be performed. These specific procedures are to be described in detail, on a daily basis if necessary by the Project Manager and the Health and Safety Manager and included into Page 8 of 25