Restoration Advisory Board (RAB)
September 16, 1999
Real Estate, RAB Co-Chair
Armando Lopez, Jr.
Army Corps of Engineers
IT Group / Kaiser
Handouts Distributed at Meeting:
- Northern and Western Burning
Grounds and Building 4343 Status Report
- SWMU 54 Status Report
- Letter dated August 20, 1999
to Robert Thomson of the U.S. Environmental Protection Agency
and enclosures regarding the SWMU 54 Interim Action
- RFAAP Information Repository
#1. Introductory Remarks, Approve Minutes of July 22, 1999
Mr. McKenna convened the meeting
at 7:20 PM and asked if there were any comments or questions
about the July 22, 1999 RAB meeting minutes. There were none,
and the minutes were approved as written.
#2. New River Unit/Building 4343 Status
Ms. Trumbo asked the RAB members
if they liked the current format of the status reports, which
are chronologies of site activities (i.e., keep a running tab
of the site activities and then just add on any new activities
to the existing list). The RAB members replied that they liked
the current format.
Mr. Freis asked where Building
4343 was located. Mr. McKenna and LTC Lopez described Building
4343s location in the Horseshoe Area. Ms. Trumbo explained
that the building used to house a cadmium plating facility,
where process water was discharged to an outside drainage ditch.
Subsurface soil, ditch, and sump samples and interior swipe
samples have been collected. RFAAP is characterizing the site
and will perform an evaluation/study to address the findings.
Mr. Parrish asked if the building
has conductive flooring. Ms. Trumbo replied that the building
does not have conductive flooring like the areas over in the
New River Unit. Rather, Building 4343 has a cement floor.
Mr. Freis asked how long Building
4343 has been closed. Ms. Trumbo replied that the production
facility is no longer in use and that it ceased operation many
years ago (perhaps more than 20). The building is locked.
Mr. Freis asked if there was any
evidence of contaminant migration from the building. Ms. Trumbo
explained that there has been some migration, but that it is
contained within the general vicinity. From the data received
thus far, the cadmium is not deep and is only found within the
first two feet of soil.
Mr. Freis asked if there were any
releases into the air. Ms. Trumbo replied that it was a plating
facility and that there were not any releases into the air.
The process water was discharged to an open drainage ditch outside
of the building. The process water deposited metals along the
length of the ditch, but it did not go down very deep. Mr. McKenna
explained that they have been working to characterize the site.
Samples were taken in the ditch and high levels of cadmium were
found. Plans are to sample along the edge in an effort to determine
#3. SWMU 54 Status
Mr. McKenna reported that RFAAP
briefed the U.S. Environmental Agency (EPA) on August 5, 1999
about interim actions at Solid Waste Management Unit (SWMU)
54 and followed up with a letter dated August 20, 1999. RFAAP
plans to remove the hot spots (i.e., higher concentrations)
of the explosive trinitrotoluene (TNT) and lead contamination.
In late August 1999, RFAAP began taking out these soil hot spots
and disposing of them at Pinewood Landfill, a South Carolina
hazardous waste landfill.
Mr. Parrish asked how deep the
contamination could be found. Mr. McKenna replied that the contamination
goes down to approximately 6 feet.
Mr. McKenna referenced and discussed
the SWMU 54 handouts (Figures 18, color maps that were
enclosures of the August 20, 1999 EPA letter). The figures depict
investigation areas, sample results, and excavation areas for
the interim action. Mr. Parrish mentioned that these SWMU 54
diagrams were helpful.
The figures show the two types
of testing that RFAAP conducted: toxic characteristic leaching
procedure (TCLP) and a test for total metals. TCLP is a waste
disposal analysis, which determines whether something is a hazardous
waste. It tests for 8 metals and helps determine what areas
need to be removed. They also conducted a test for total metals.
Mr. Freis asked about the site
history and what caused the contamination. Mr. McKenna explained
that the site used to be a disposal area for propellant ash.
High levels of TNT have been detected, but they are not at a
concentration that would be reactive (i.e., cause detonation).
Mr. Freis asked if there was any
evidence of migration, and Mr. Parrish asked if the ground water
wells have found anything. Mr. McKenna reported that cyclotetramethylenetetranitramine
(HMX) was found in the ground water. The interim action will
characterize the area and help determine areas that need additional
evaluation. Further ground water characterization is expected
in the future.
#4. Information Repository
Mr. McKenna reported that documents
for the RFAAP Information Repository were delivered to the Montgomery-Floyd
Regional Library in Christiansburg on September 14, 1999. The
Information Repository index was included as a meeting handout.
#5. Closing Remarks, Schedule Next Meeting
Mr. McKenna adjourned the meeting
at 8:25 PM. The next RAB meeting will be held at RFAAP on Thursday,
November 4, 1999, at 7 p.m.
Mr. Freis suggested that RFAAP
send out a reminder one week prior to the meetings.
After the meeting, LTC Lopez presented
awards to the RAB members in appreciation of their service to
Meeting Minutes Archives