SECTION SIX
Final Inspections and Certifications
removed and the Permea-Tec pad was retrieved. The analysis of the pad was activated with tap
water. A positive indication of breakthrough of 2- naphthlylamine (2-NA) through the personal
protective equipment (PPE) would result in a predominately red color change of the pad. During
the course of the project, no positive results were found with the 780 separate pad tests collected.
compounds. A monthly wipe sampling program using these pads was implemented to confirm
that support areas were not becoming contaminated during site activities. During the course of
the project, no positive results were found from the 627 Surface Swype samples collected in
trailers and support facilities.
Surface Swype pads were also used to confirm that equipment, which had entered the exclusion
zone, was decontaminated of aromatic amines prior to release from the exclusion zone. During
the equipment decontamination program, only three of the 2,864 pads showed the characteristic
color change indicating the presence of aromatic amines. Of the three positive samples, one was
found to be a false positive through additional testing and research, and the other two were
equipment which were re-cleaned using a decontamination solution formulated to remove
aromatic amine compounds. After re-cleaning with the decontamination solution, the equipment
Surface Swype was repeated and no color change was indicated.
Another type of pad utilized was a Skin Swype pad. The Skin Swype pad was used to
determine that no inadvertent skin contamination with 2-NA had occurred. When a worker
exited the exclusion zone, the worker's skin was wiped with a Skin Swype pad prior to
washing, the pad was placed in a small cup containing developing solution, the developing
solution was allowed to wick through the pad. If a strip near the top of the pad changed color, it
was considered to be positive for an aromatic amine. None of the 770 Skin Swype pads
showed a positive result.
6-2
Slippery Chemical OU 3 Final RA Report
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