EP 1110-1-22
15 Sep 00
d.
The first assessment factor listed in Part I, physical damage to ACM, has the five
value-weighted conditions of high, moderate, low, minimal, and none. A consideration for the
evaluator should be the age of the ACM. If the age is greater than 30 years, the normal
deterioration of the binding agents may have produced a surface material that has a potential for
fiber release, per unit of surface area damaged, much greater than for newer and similar surface
ACM. An evaluator who would normally rate a certain extent of damage as low for 15-year-old
sprayed-on ACM might want to rate the same extent of damage as moderate for a 35-year-old
material. The age of the ACM should also be considered when determining the potential for
damage from water and routine maintenance or repair. In some assessment algorithms, the
design of a roof above the ACM is considered. There is a greater potential for rainwater damage
to ACM under a flat roof than under a sloped or hipped roof.
e.
In considering the asbestos percent content of ACM factor, the assumption is that
as the percentage of asbestos in the ACM increases so does the potential for airborne fiber
release. This would undoubtedly be true if the same binding agent were used in all ACM.
However, not all ACM is created equal. It is quite possible that an ACM with an easily degraded
starch, water-soluble binder and an asbestos content of 15 percent would have a greater fiber
release potential than an ACM with 50 percent asbestos and a water-insoluble binder.
f.
The evaluator's choice of a value-weighted condition for each assessment factor
should be based upon all detailed and relevant information available.
B-4
Guide for Completing the Asbestos-Containing Material Assessment
a.
A survey is defined in this manual as the inspection of functional spaces to locate,
identify, and measure the amount of ACM present.
b.
An assessment further evaluates the ACM in terms of:
(1)
Its potential to become airborne, or the actual extent to which it is a source
of airborne fibers (damage).
(2)
What extent humans are exposed to airborne fibers in the functional
spaces of a facility containing asbestos.
c.
Army asbestos management programs will include an assessment with any survey
conducted.
d.
An assessment is used to determine if corrective action is needed, what corrective
action to use, and prioritizing the corrective actions. The assessment process includes:
(1)
Identifying the type of ACM by taking bulk samples (i.e., wall board, pipe
insulation, surface compound, etc.)
(2)
Evaluating the potential for fiber release (exposure potential).
B-5
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