Specifications - Lord and Son Construction, Inc.

Thereafter, during the removal process, provide the following air monitoring:
MINIMUM NUMBER EACH SAMPLE
AREA TO BE OF SAMPLES FOR MINIMUM VOLUME
SAMPLED EACH WORKDAY LITERS
Work Area 2 600L
Outside Work Area 2 3,000L
Outside Building, at
Exhaust Opening 1 3,000L
Personal air monitoring shall be continuous on one removal workman during each
shift. If monitoring outside the asbestos control area shows airborne
concentrations have reached the specified TWA, stop all work in the effected area
(leaving negative air machines in operation), correct the conditions causing the
increase, and notify the Contracting Officer.
D. Monitoring Results: PCM fiber counting shall be completed and results made
available to the Contractor within 16 hours. Notify the Contractor and the
Contracting Officer immediately of any exposures to asbestos fibers in excess of
the acceptable limits. Submit written reports of all monitoring results to the
Contracting Officer within 3 working days.
E. Local Exhaust System: Pressure differential recordings for each work day shall be
reviewed by the laboratory and submitted to the Contracting Officer within 24 hours
from the end of each work day. The laboratory shall notify the Contractor and the
Contracting Officer immediately of any variance in the pressure differential which
could cause exposure of adjacent unsealed areas to asbestos fiber concentrations
in excess of the TWA.
4.3 WORK AREA CLEARANCE
A. General
1. This section sets forth required post-abatement airborne asbestos
concentrations in the Work Area and describes testing procedures to measure
these levels.
2. The Asbestos Abatement Work Area is Cleared when the Work area is
visually clean and airborne asbestos structure concentrations have been
reduced to the level specified below.
3. Work of this paragraph will not begin until the visual inspection is complete
and has been certified by the Project Designer.
B. Air Monitoring
1. To determine if the elevated airborne asbestos structure concentration
encountered during abatement operations has been reduced to the specified
level, the Contractor will secure samples and analyze them according to the
following procedures.
MAHG121038 02 11 50 - 14 ASBESTOS REMOVAL