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SITE HEALTH c& SAFETY PLAN <br /> 5.2 POTENTIAL PHYSICAL HAZARDS AT SITE <br /> Potential physical hazards, as those listed in Table 5.0, are discussed below. <br /> 5.2.1 Underground Utility Hazards <br /> An underground utility check shall be performed prior to initiating any subsurface investigation <br /> or work. The check will include: <br /> V Underground Service Alert (USA) Note: USA must be notified at least 2 working days <br /> before any subsurface work begins. Record confir- <br /> mation number in project field notes. <br /> Private Locator: <br /> Plans Check. Facility Contact: Donna MuEphy (800) 992-6066 <br /> Geophysical Survey. <br /> Additional Information: <br /> 5.2.2 Overhead Power Lines <br /> Whenever possible, avoid working under overhead high voltage lines. The following are <br /> minimum clearances for overhead high voltage lines. <br /> Normal Voltage Minimum Required <br /> (phase tophase) Clearance(Meet) <br /> more than 750 - 50,000 10 <br /> more than 50,000-75,000 11 <br /> more than 75,000 - 125,000 13 <br /> more than 125,000- 175,000 15 <br /> more than 250,000 - 379,000 21 <br /> more than 370,000- 550,000 27 <br /> more than 550,000- 1,000,000 42 <br /> (Reference: CCR Title 8, Section 2946, Table II) <br /> 5.2.3 Noise Hazards <br /> Wear hearing protection when working near large heavy equipment, such as drill rigs or earth <br /> movers, or in other noisy conditions. As a general rule, hearing protection should be worn when <br /> two people standing within 2 feet of each. other cannot communicate at normal conversational <br /> voice levels. <br /> I.1.PR0JEC'n6741.000\6741-t77.doc 7 <br />