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Water Health Assessment
(Dover Township) Toms River, New Jersey
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Recommendations
Draft for Public Comment -- November 16, 1999
Recommendations
Exposure Reduction Recommendations
Treatment of the Parkway wells impacted by the Reich Farm groundwater contamination should be continued until such time that the plume no longer threatens the wells. The treatment should include methods to remove volatile and semi-volatile organic chemicals,
such as packed tower aeration and/or granular activated carbon. Monitoring (at appropriate intervals) of the effectiveness of treatment systems is necessary to ensure that Reich Farm-related contaminants are not introduced into the distribution system of the community water supply.
When reduction of exposure to naturally occurring radiological activity in drinking water is necessary to meet applicable standards, use of wells with higher gross alpha activity should be minimized when possible.
To reduce exposure to lead from plumbing, particularly in those schools where lead and copper levels in first draw samples were elevated, the NJDHSS and NJDEP recommend that schools adopt a flushing program. This entails running the drinking water fountains each morning for a minute or two.
In addition, schools may choose to provide a supplemental source of bottled water.
Water System and Source Water Characterization Recommendations
NJDEP and USEPA should continue to monitor the extent and movement of known contamination plumes in Dover Township, including those associated with the Reich Farm and Ciba-Geigy Superfund sites. Remedial efforts to contain and remove pollutants should be maintained to ensure the quality of future water supplies.
NJDEP should continue its evaluation of the potential existence of additional, non-target chemicals in the Reich Farm plume.
NJDEP and the U.S. Geological Survey should continue to conduct research into the occurrence and dynamics of radiological contaminants in the Kirkwood-Cohansey aquifer of southern New Jersey.
Other Public Health Recommendations
NJDHSS should continue to consider access to water from specific points of entry in the UWTR system in its "Case-control Study of Childhood Cancer in Dover Township (Ocean County), New Jersey, " using computer-modeled, historical re-constructions of the UWTR system under development by ATSDR.
USEPA should continue efforts to characterize the toxicology of SAN trimer, including attention to possible carcinogenicity following pre-natal or early post-natal exposure.
NJDEP and USEPA should re-evaluate regulations governing sample collection, holding time and analysis for gross alpha and radium activity.
Where hazardous waste sites threaten water supplies, NJDEP and USEPA should consider expanded testing to encompass pollutant classes of local importance.
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