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The Groundwater Resources Association of California (GRA),
in cooperation with a number of other professional organizations,
presented a symposium in its Series on Groundwater Contaminants
titled "Perchlorate in Groundwater: Occurrence, Analysis
and Treatment".
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Colonel Daniel Rogers,
Chief,
Environmental Law and Litigation,
Air Force Legal Support Agency, Pentagon
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Perchlorate ( )
has been found to impact drinking water aquifers in California
and elsewhere leading to the closure of numerous municipal
water supply wells. Perchlorate can be accidentally released
to water bodies from a number of sources. It is a primary
ingredient in solid propellant for rockets and missiles and
therefore a common contaminant at aerospace facilities. In
addition, perchlorate-based chemicals have been used in a
range of industrial processes including production of highway
safety flares, aluminum refining, electroplating, and production
of paints.
Information about the use, environmental behavior and treatment
of perchlorate has only recently become available. This symposium
showcased experts on the occurrence and potential sources
of perchlorate, its fate and transport characteristics, regulatory
status, toxicology and chemical detection challenges.
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David Spath, Chief, Division of Drinking
Water
and Environmental Management,
California Department of Health Services
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The program also provided information about known impacts
of perchlorate on water resources in California as well as
current remediation/water treatment options.
The symposium featured speakers from regulatory agencies,
universities, national laboratories and industry and attractted
about 350 participants.
The Symposium consisted of the following three sessions: (view
detailed program agenda)
- SESSION 1: Sources, Occurrence, Geochemistry, Fate
and Transport, Analysis and Toxicity of Perchlorate
- SESSION 2: Perchlorate in California
- SESSION 3: Treatment and Remediation
In addition to the above sessions, experts participated in
a panel discussion on policy and legal issues relating to
perchlorate contamination at the end of this one-day event.
This was followed by a reception featuring poster and exhibitor
presentations.
GRA also coordinated a pre-symposium site visit to Aerojet's
perchlorate treatment facility on July 30:
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