agent concentrations. These are indirect methods that can determine if significant levels of agent are present in the enclosed volume; surfaces are not directly monitored. However, vapor detection does not identify the location nor quantify the level of contamination on surfaces within the test volume.

Finding 2-2. No CMA or ACWA standards have been established for surface contamination similar to the airborne agent concentration exposure limits, from which vapor screening levels have been adopted. If accepted by the CDC and relevant state regulators, a health-based agent-contaminated surface hazard level measured in mass per unit area by a new, direct surface contamination measurement technology and suitable agent-contaminated surface calibration standards could be useful in clearing secondary waste materials during ACWA disposal operations and/or structural materials during closure. However, reliable agent-contaminated surface calibration standards may be difficult to produce.

Based on its review in Chapter 3 of available estimates of anticipated secondary waste production at both PCAPP and BGCAPP, the committee notes that the two sites currently tabulate anticipated waste streams using disparate waste category designations.

Finding 3-1. The waste category designations used for tabulating waste streams at the Pueblo Chemical Agent Destruction Pilot Plant and the Blue Grass Chemical Agent Destruction Pilot Plant differ, thus making waste management comparisons between the two facilities difficult. For example, at one site the waste quantity estimates list waste demilitarization protective ensemble suits separately, but at the other such waste is included in halogenated plastic waste.

Accordingly, the committee recommends:

Recommendation 3-1. The Program Executive Officer for Assembled Chemical Weapons Alternatives should consider implementing a uniform set of waste category designations for use at both the Blue Grass Chemical Agent Destruction Pilot Plant and the Pueblo Chemical Agent Destruction Pilot Plant to facilitate the transfer of knowledge and lessons learned between sites.

After also reviewing the major role that demilitarization protective ensemble (DPE)-suited entries into agent-contaminated weapons processing areas are expected to play in pacing ACWA facility weapons disposal, the committee finds:

Finding 3-2. Any new monitoring method that could efficiently and reliably locate and quantify agent contamination may make decontamination activities more efficient by:

•  Enabling faster identification of leaking munitions and decontamination of machinery, potentially reducing the number and/or duration of DPE-suited entries during normal plant operations, agent changeover periods, and closure activities;

•  Reducing the total amount of secondary waste;

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