Periodical hearing examinations are to be
conducted to monitor the effectiveness of the
hearing conservation program.
Education is vital to the overall success of a
hearing conservation program.
The Navys Permissible Exposure Limit (NPEL)
for occupational noise is 84 decibels (unit of measure
to express sound pressure levels) for an 8-hour time
weighted average (TWA). When TWA exposures
exceed 84 dB, then include personnel in the Navys
Hearing Conservation Program. The formulas to
compute decibels are in the OPNAVINST
Any work area where the TWA sound level
exceeds 84 dB and where the noise level would peak
at 140 dB will be designated as hazardous noise areas
and labeled as per Navy Medicine, NAVMED 6260/2
(series). These labels should read Hazardous Noise
Warning Decal, 8 inches by 10 1/2 inches (displayed
on stationary equipment and all entryways) and
Hazardous Noise Labels, 1 inch by 1 1/2 inch
(displayed on power tools). These are approved decals
and labels for marking hazardous noise areas and
Remember Builders, you work mainly with power
tools and machinery with which the decibels will
range from 50 dB (power saws) to 140 dB (radial saw
at peak operations), so it is your responsibility to
protect your hearing. If you have any further questions
regarding hazardous noise areas, do not hesitate to
contact your safety officer.
Navy policy requires that Navy personnel exposed
to eye hazards are to be provided adequate eye
protection at government expense. The following
basic program requirements are to be implemented:
1. A complete survey of all activity work areas,
equipment, and processes must be conducted to
determine which eye hazards exist, which personnel
require eye protection, and what type of eye protection
2. All areas designated as eye hazards must be
posted with the appropriate warning signs. Such signs
should be consistent with the requirements of 29 CFR
1910.145 and are to be located at all entrances to
designated areas as practical.
3. Emergency eyewash stations must be provided
in all areas where the eyes of any employee may be
exposed to corrosive materials.
Remember Builders, your eyesight is the most valuable
tool you will ever possess.
For further references to SAFETY, contact your
safety officer or refer to the OPNAVINST 5100.23
(series), Naval Safety Supervisor course (TRAMAN),
and Army Corps of Engineers, EM-385.
POLLUTION AND HAZARDOUS
Pollution abatement is the responsibility of all
Navy personnel whether military or civilian. We need
to become more innovative in finding ways to reduce
pollution in our environment. Land, air, and water are
the three primary parts that make up this planet and
are ecologically balanced. When one of the parts is
severely damaged, it has an equally damaging effect
on the other two parts. It is absolutely essential for us
to review practices that have or may have a detrimental
effect on the environment and determine whether
measures can be taken to lessen or eliminate these
undesirable effects further.
Historically, the most prevalent polluters have
been in the fields of manufacturing, facilities
maintenance, construction, and waste disposal. NCF
personnel can do little to control manufacturing
pollution. However, they can provide some control
over the methods in which many manufactured items
are used and the ways in which residues, such as
construction waste and potential pollution materials,
are disposed. This is particularly important when it
could have an adverse effect on the immediate
environment at an NCF jobsite.
POLLUTION IMPACT AREAS
Nearly all pollution is caused by substances from
the following categories of materials:
Hazardous any material, substance, chemical,
and so forth, that is regulated as hazardous (harmful,
exposing one to risk), requiring an MSDS.
Nonhazardous any material, substance,
chemical, and so forth, that is not regulated and does
not require an MSDS.
Organic a material or substance generally
characterized by chains of connected carbon atoms. A