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4.29 HEARING <br />CONSERVATION PROGRAM <br />Geofon has the responsibility to provide a safe and healthful environment in which <br />employees work. To fulfill this responsibility with respect to hazardous noise, a comprehensive <br />hearing conservation program has been established within our company. The elements necessary <br />to satisfy the criteria for an effective hearing conservation program include education and <br />training of employees, a general noise survey with monitoring of employee noise exposures, <br />engineering and/or administrative controls, a hearing protection program and annual audiometric <br />evaluation. <br />Employee exposure to noise shall be monitored periodically to determine their eight-hour <br />time -weighted average (TWA) exposure to noise. Annual audiometric tests shall be given to all <br />employees with a TWA equal to or greater than 85 dBA. Hearing protection is required and <br />shall be worn by all employees whenever the following exist: <br />1. A worker is exposed to noise levels of 85 dBA or more, regardless of the time <br />spent in that area. <br />2. A job activity that requires exposure to suspected elevated noise levels which <br />have not been measured, and the job is not a recurring one (e.g., temporary <br />construction or maintenance projects using air hammers, air wrenches, explosive <br />guns, generator tests, etc.) <br />The education and training programs shall be repeated for all affected employees <br />annually. <br />To reduce excessive noise levels, engineering and/or administrative controls shall be <br />implemented where feasible. <br />36 <br />