Vet Toxic Exposure TCE

Posted: August 31, 2011 in Uncategorized
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As early as WWII, United States Air Force and other Military bases used and disposed of chemical degreasers and other toxic substances that were later determined to contaminate drinking water and pose multiple health risks including: Cancers, Reproductive disorders, Birth defects, and Multiple other serious difficulties. Countless military personnel, their families, and private individuals living and working in the near vicinity of the bases may have been affected by these contaminates, through drinking water, general water usage and exposure through vapor seepage. The four most alarming contaminants are: Trichloroethylene (TCE), Tetrachloroethylene (PCE), Vinyl Chloride, and Benzene. Scientific studies show that some or all of these chemical compounds have breached the ground water supply on several of our US Military Bases and in some instances, have affected civilian properties adjacent to the bases including churches, schools and private wells. Currently, on-going research is being conducted on military bases around the country and on properties directly adjacent to these bases to identify just how wide spread this contamination may be.  Prior to 1977, the Nebo Main Base at Barstow CA obtained potable water from six on-base production wells for drinking and operations. The water was used by people working and living on-base. The Agency for Toxic Substances and Disease Registry (ATSDR), evaluated the human exposure to this water because these wells had the potential to be impacted by the Nebo Main Base – northern plume and the Barstow area wide groundwater contamination. The northern plume is an area of groundwater contamination caused by historical disposable practices at Warehouse 2 and surrounding buildings. This warehouse was built in 1942 and the wells were installed from 1942 to 1969. The predominant contaminant in the northern plume is tetrachloroethene. In 1997, MCLB stopped using the wells for drinking and production water because of high levels of total dissolved solids. Water was then obtained from the City of Barstow. The production wells were used after 1977 to irrigate the golf course.
The Barstow area wide groundwater contamination is a regional area of groundwater contamination identified by high total dissolved solids caused by off-base upgradient municipal and industrial-waste discharges and upgradient recharge of the aquifers by irrigation. Prior to 1994, limited well data are available. The data that does exist includes the analysis of water quality parameters such as major cation, anions, and a few other chemicals such as phenols, trihalomethanes, and mercury. Prior to 1994, the well water was not analyzed for the type of chemicals found in the Nebo Main Base – northern plume. After 1994, the production wells were sampled once in 1994 and in 1999 for the contaminants found in the northern plume. Of the chemicals analyzed for, only trichlorobenzene was found in the 1994 samples and it was below levels of public health concern. MCLB has investigated the Nebo Main Base – northern plume since 1983 and found that the plume is limited in the upper 20 feet of the aquifer and extends to the edges of the Mojave River. Concentrations at the Mojave River are below MCLs. MCLB is currently cleaning up the groundwater. For additional info refer to [Source: Jul 2011 ++]


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