EP 1110-1-23
31 Jan 99
will be collected and analyzed as indicated in [Table 2 at the end of this section and NIOSH 7400
PCM] [Table 3 at the end of this section and the EPA Mandatory Method as specified in 40 CFR
Part 763 TEM. The arithmetic mean concentration of the five inside samples will be less than or
equal to 70 structures per square millimeter (70 s/mm2). When the arithmetic mean is greater than
70 s/mm2, the three blank samples will be analyzed. If the average of the three blank samples is
greater than 70 s/mm2 resampling will be required. If less than 70 s/mm2, the five outside samples
will be analyzed and a Z-test analysis performed. The Z-test results will be less than 1.65. If the
Z-test results are greater than 1.65, 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 ensure that the area meets the required clearance
criteria.]
3.3.3 Air Sample Results and Record Keeping. Air sample fiber counting will be
completed and results provided within [24] [ ] hours after completion of a sampling period. The
CO will be notified immediately of any airborne levels of asbestos fibers in excess of established
requirements. Written sampling results will be submitted to the CO within five working days of
the date of collection. The written results will be signed by testing laboratory analyst, testing
laboratory principal, the Monitoring Contractor's Designated IH, and the Monitoring Contractor.
The air sampling results will be documented on a Monitoring Contractor's daily air monitoring
log. The daily air monitoring log will contain the following information for each sample: date
sample collected, date sample analyzed, sample number, sample type (E = Environmental Quality
Control, C = Abatement Clearance, IRWA = Inside Regulated Work Areas, ORWA = Outside
Regulated Work Areas, DU = Decontamination Unit, LOU = Load-out unit, AT = Access
Tunnels), sample period (start time, stop time, elapsed time minutes), sampling pump
manufacturer (model and serial number), average flow rate (liters per minute (l/min)), total air
volume sampled (liters), sample results [fibers per cubic centimeter (f/cc)] [and][structures per
square millimeter (s/mm2)], and location/activity/name where sample was collected. In addition,
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