navmc dir 5100.8 marine corps occupational safety and ... - US Navy

11001 MARCOR OSH PROGRAM MANUALsubsequent periodic surveys will be compared. Permanent changesin a work center will require establishment of a new baselinefor new or altered operations. The baseline industrial hygienesurvey is routinely updated by periodic surveys and throughrepresentative sampling programs in the work environment.Analysis and interpretation of the sampling data will assist inthe assessment of health hazards, making recommendations forhazard abatement and control measures, and determiningrequirements for medical surveillance of personnel at risk. Thefollowing subparagraphs provide basic requirements for workplacemonitoring.a. Workplace Assessment (Walk-Through Survey). Theresponsible medical treatment facility (MTF) industrialhygienist or other trained industrial hygiene personnel shallconduct a baseline survey. If the organization has its ownindustrial hygiene assets, responsibilities for workplacemonitoring, inspections, etc., shall be defined in a formalagreement between the organization and the MTF. Baseline willinclude, as a minimum, the following information:(1) A description of operations and work practices thattake place in the work center (e.g., welding, spray-painting),to include a layout sketch incorporating relevant aspects of thetasks. The time course of events taking place within the workcenter must be carefully described.(2) A list of hazardous materials (including biologicalhazards and radioactive material) used, handled, stored, orproduced in the work center in terms of quantity per unit time,including a brief description of how the materials are used inthe operations.(3) A list of potential harmful physical agents (e.g.,noise, radiation) including a brief description of theirsources.(4) A brief description of existing controls (e.g.,ventilation hoods, hearing protection devices), and anevaluation of their use and effectiveness.b. Exposure Assessment. Based on information obtainedduring the walk-through survey, the next step is to assess11-4