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Program Elements
Sound Level Survey
  • Initial area surveys will be conducted to determine the sound levels for areas the noise level may be above 85dBA. The supervisor needs to request the industrial hygienist or safety personnel to conduct the survey.
  • "Hearing Protection Required” signs will be posted in areas with noise level at or above 85 dBA. 
  • When significant process or equipment changes occur which may increase/decrease the noise level or the number of employee’s exposed, additional sound level surveys will be conducted. Sound level meters and noise dosimeters will be calibrated before and after use to ensure measurement accuracy.
Employee Exposure Monitoring
  • Employees will be evaluated to determine if they need to be included in the Hearing Conservation Program. The evaluation will be conducted/supervised by industrial hygiene or safety personnel through employee interview or by noise exposure monitoring. All continuous, intermittent and impulse sound levels from 80to 130 decibels are integrated into the noise measurements. Noise dosimeter will be calibrated before and after use to ensure accuracy.
  • Monitoring/interview is repeated whenever the industrial hygienist is notified by the supervisor/employee that the production, process, equipment or controls may increase noise exposure that additional employees may be exposed at or above the action level or the attenuation provided by the hearing protectors being used by employees is rendered inadequate to meet the requirements.
  • Employees will be notified of the monitoring results. Employees or their representatives are provided the opportunity to observe any noise measurements conducted.
  • Employees who spend 8 hours or more per shift out on the unit when visiting other BP facilities with high noise will be included in the site Hearing Conservation Program. Employees visiting other locations should request the host site industrial hygienist to conduct exposure monitoring.
Control Measures
Feasible engineering and /or administrative controls will be implemented to lower employee’s noise exposure to below 85 dBA for an eight-hour TWA or 82 dBA for a twelve hour TWA. New equipment purchase and new facility construction plans will follow BP engineering specification for noise.
Hearing Protection Devices
When engineering or administrative control is not feasible, employees will be provided and fitted with hearing protection devices that will protect them against the noise they encounter. Hearing protection devices will lower employee’s noise exposure to below 85 dBA. All personnel are required to wear hearing protection devices when in an area or operating equipment with noise level at or above 85 dBA. See Appendix 1 for hearing protection attenuation information.
Employee Training
Employees in the Hearing Conservation Program will be trained annually. The training will include the effect of noise on hearing, the purpose of hearing protectors, the advantages, disadvantages and attenuation of the various types of hearing protectors, location of the written hearing conservation program, instructions on selection, fitting, use and care of hearing protectors, the purpose of audiometric testing and an explanation of the test procedure.
Audiometric Examination
  • Employees in the Hearing Conservation Program will receive baseline audiometric examinations and annual audiometric examinations. Contact the Naperville Medical Department to schedule for the audiometric examination. 
  • Employees with a temporary threshold shift will be re-tested within 30 days.
  • Employees with a confirmed threshold shift will be retrained and refitted with hearing protection devices and referred for specialist evaluation as appropriate
Access to Information and Record Retention
  • Employees will have access to the site written Hearing Conservation Program, OSHA Occupational Noise Exposure Standard, exposure monitoring and audiometric examination results. Copies of the OSHA standard are available in the Naperville Medical Department and the CAFO HSE Department.
  • The noise exposure measurement records will be retained in the BP Medgate database. Audiometric test records will be retained by Naperville Medical for the duration of the affected employee’s employment. Contact the site industrial hygienist for noise exposure monitoring information and the Naperville Medical Department for audiometric examination records.
  • These records will be provided to employees, formal employees’ representatives designated by the employees and the Assistant Secretary of OSHA - upon request.
Program Evaluation
  • The hearing conservation program will be reviewed periodically to determine the effectiveness of the program. 

Updated 12/7/2011



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