Impact of Revised Airborne Exposure Limits on Non-Stockpile Chemical Materiel Program Activities (2005) / Chapter Skim
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2 A Non-Stockpile Facility and Two Mobile Treatment Systems
2 A Non-Stockpile Facility and Two Mobile Treatment Systems
Pages 16-36
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From page 16... ...
When these activities, together with the destruction of the filling machines and demolition of all VX Exposure Issues buildings, are finished, the dismantlement and destruction of the former VX production facility in accordance with the When the NECD facility was mothballed, the tanks, piping, terms of the CWC treaty will be complete. reactors, and product storage tanks within Building 143 and 16
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From page 17... ...
From left to right are Building 144, housing filling and ancillary equipment; multistory Building 143, housing the VX production facility; and scrubber towers. SOURCE: Terry Frederick, Tennessee Valley Authority, Briefing to the committee, September 14, 2004.
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From page 18... ...
promulgated by the CDC become effective in 2005, these practices may be altered. However, the Implementation Guidance Policy for Revised Airborne Exposures Limits for GB, GA, GD, GF, VX, H, HD, and HT, which describes implementation guidance to address the new AELs, states that the intent is not to increase the level of PPE (U.S.
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From page 19... ...
A NON-STOCKPILE FACILITY AND TWO MOBILE TREATMENT SYSTEMS 19 FIGURE 2-3 Level C PPE. FIGURE 2-4 Level D PPE.
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From page 20... ...
3DAAMS, an historical air monitoring system, is described in Chapter 4. 4 In this report, DAAMS may refer to a single location where DAAMS tubes For VX, the LD50 is 0.0084 mg/kg (Munro et al., 1994)
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From page 21... ...
. the O-ethyl methylphosphono portion of the molecule has Chemically, any ethyl methyl phosphonate compound the potential to react on the silver fluoride pad on the containing a good leaving group would be expected to react MINICAMS, forming the G-analog and thus generating a identically to VX on the silver fluoride conversion pad of the false alarm for VX.
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From page 22... ...
primary containment is maintained under negative pressure But this must be proven, given the potential for toxic chemi- and the outlet air is purified by an activated carbon filter cals to be present in the NECD atmosphere. The PPE used at element (a chemical removal system that ensures that VX is the NECD former production facility was described earlier not passed to the atmosphere)
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From page 23... ...
is in place and is maintained under Finding 2-2: The change in operational philosophy to larger negative pressure during the cutting operation and the secondary containment areas and air conditioning of these exhaust air is filtered. areas has increased the efficiency and safety of demolition · Workers wear appropriate PPE (Level B)
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From page 24... ...
There tion to the environment and personnel outside the buildings. would have to be secondary containment under negative The Army plans to change its operational philosophy at pressure and workers would have to wear Level B PPE.
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From page 25... ...
Finding 2-5: The 30-minute self-contained breathing appa ratus used as an emergency escape bottle during demolition The current Army Level B PPE -- toxicological agent activities at the NECD VX production facility is heavy and protective (TAP) suit, 30-minute self-contained breathing bulky and creates unnecessary worker fatigue, which is likely apparatus (SCBA)
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From page 26... ...
Primary containment of agent vapor is provided by the explosive containment Recommendation 2-6: The workers at NECD should be vessel of the EDS itself. Secondary containment is provided provided with state-of-the-art industrial PPE to minimize by a portable VCS, within which the EDS is placed.
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From page 27... ...
With the possible exception of 13Dave Hoffman, Systems Operations and Remediation Group Leader, 12EDS treatability matrix provided to the committee by PMNSCMP, PMNSCM; Rick DiMauro, RRS System Manager, PMNSCM; Tom Rosso, October 13, 2004; EDS update and workplace monitoring from Dave Chief Program Management Team, Edgewood Chemical and Biological Hoffman, Systems Operations and Remediation Group Leader, PMNSCM, Command; and Brett Sims, RRS Crew Chief, Teledyne Brown Engineering, Briefing to the committee, June 16, 2004. Briefing to the committee, June 16, 2004.
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From page 28... ...
5 no H Dugway Proving Ground, Utah 7/04-9/04 12 4.2-inch mortar rounds H, suspected H (22 items) 7 DOT cylinders H 1 105-mm projectile Probably HD 1 M139 bomblet half GB 1 M125 bomblet GB Multiple-shot Aberdeen Proving Ground, Md.
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From page 29... ...
SOURCE: Dave Hoffman, Systems Operations and Remediation Group Leader, PMNSCM; Rick DiMauro, RRS System Manager, PMNSCM; Tom Rosso, Chief Program Management Team, Edgewood Chemical and Biological Command; and Brett Sims, RRS Crew Chief, Briefing to the committee, June 16, 2004.
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From page 30... ...
Any MINICAMS alarms for CG and PS were assumed to be real. During EDS operations at Spring Valley, there was only Dugway Proving Ground one alarm for mustard agent; this was at 2.2 TWA, when the Dugway Proving Ground (DPG)
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From page 31... ...
For proper design of the monitoring plan, the dispersion modeling would have to accurately Monitoring for Protection of the General Population reflect actual operating conditions. The EDS has been and will be used in a wide variety of environments, ranging from densely populated urban set- Finding 2-7: Airborne exposures estimated for planning tings, such as Spring Valley in northwest Washington, D.C., purposes are not consistent with those experienced in actual to remote military facilities having no general population EDS operations.
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From page 32... ...
permit by the state of RRS is the operations trailer, which contains glove boxes in Utah to conduct a test program with both simulants and which CAIS are opened and the contents of the individual chemical agents at DCD. A full-scale prototype was designed bottles, jars, and ampoules are identified and neutralized or and assembled.
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From page 33... ...
The workspace inside the trailer, as well as in the analytical trailer, is categorized as Level D, which assumes 21Dave Hoffman, Systems Operations and Remediation Group Leader, no contact with chemical agents. Protective gear for work in PMNSCM; Rick DiMauro, RRS System Manager, PMNSCM; Tom Rosso, the glove boxes is basically limited to extra gloves worn Chief Program Management Team, ECBC; and Brett Sims, RRS Crew inside the glove box gloves and a slung M40 mask (Tripler Chief, Briefing to the committee, June 16, 2004.
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From page 34... ...
cycle time for the MINICAMS.26 Figure 2-9 illustrates the configuration of the filter banks through which the exhaust air from the glove boxes is extracted. Placement of Monitors in the RRS Air exiting the glove box is drawn through a HEPA filter As configured for the RCRA permit testing at DCD, the to remove dust and then through a pair of carbon filters to air was tested in the following locations (Tripler et al., 2001)
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From page 35... ...
Impingers were also used to detect airborne In addition to the primary containment provided by the agent in the mobile analytical support platform itself glove boxes, the team working in the operations trailer is and in parts of the building not routinely monitored protected by constant monitoring of the workspace atmosphere with MINICAMS. for the relevant chemical agents and industrial chemicals.
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From page 36... ...
It was judged likely that interferents such as chloricampaign.31 The monitor at the exhaust of the RRS filter nated solvents gave rise to the alarms. The one alarm coming bank is regarded as a perimeter monitoring system since it is from within the RRS was a signal for CK at 0.73 TWA (just the only outlet for the chemicals being handled in the glove above the 0.70 TWA alarm setting)
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