EP 1110-1-23
31 Jan 99
accordance with the Air Monitoring Plan. Representative area sampling will be conducted at least
once every shift, close to the work inside the containment area, outside the containment area,
outside the clean room entrance to the containment area (outside air lock for mini and modified
containment areas), inside the clean room (inside the air lock for mini and modified containment
areas), outside the load-out unit exit, if used, and at the exhaust discharge point of the local
exhaust system. If the sampling outside the containment area shows airborne fiber levels have
exceeded background or 0.01 fibers per cubic centimeter (f/cc), whichever is greater, the CO will
be notified within [24 hours] [
]. In addition, should an environmental concentration of 0.1 f/cc
expressed as an 8-hour TWA occur inside the asbestos regulated work area, the CO will be
immediately notified. [In areas where the construction of a containment area is not required,
sampling will be conducted at the boundary of the asbestos regulated work area in such location
and at such frequency as recommended by the Monitoring Contractor.] [Where glove bag
methods are used, area air sampling will be performed at locations and frequencies that will
accurately characterize any evolving airborne fiber levels.]]
3.3.2 [Air Sampling for Final Clearance of Abatement. Final clearance air sampling will
not begin until the CO's acceptance of final cleaning and visual inspection of the abatement area.
The Monitoring Contractor will provide area sampling of airborne fibers using aggressive air
sampling techniques as defined in the EPA 560/5-85-024 or as otherwise required by federal or
state requirements. The sampling and analytical method used will be [NIOSH Method 7400 PCM
with optional confirmation of results by NIOSH Method 7402 TEM. The fiber concentration
inside the abated asbestos regulated work area for each airborne sample will be less than 0.01
asbestos f/cc. If any sample result is greater than 0.01 asbestos f/cc or baseline whichever is
higher, the abatement is incomplete. Upon receipt of these results, the area will be recleaned by
the Abatement Contractor. Upon completion of any required recleaning, resampling will be
conducted to determine if the area meets the required clearance criteria.] [the mandatory EPA
TEM Method specified in 40 CFR Part 763]. The final clearance air samples
A-6
Previous Page
