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i <br /> BACKGROUND <br /> REASON FOR CONSULT ATION <br /> The Town ofllashe Health Department(MHD)requested that the Massachusetts <br /> Department f Public Health NMconduct health.consultation regarding the <br /> potential public health threats posed by groundwater contamination in the vicinity of <br /> Sarin son's Bill Road and Simons Road in Mashpee, Massachusetts. This consultation <br /> was prompted by concerns about exposure to trichloroethene TC that was found <br /> during May and June of1996 In two private residential wells at concentrations of 520 <br /> and <br /> .9 parts per billion respectively. In addition, tetr hloro thcne (PCE) was detected <br /> at a concentration of 4.0 PPb in one of these wells and at a concentration of o.5 ppb in <br /> third private residential well approximately 0.5 miles south of these wells. The <br /> Massachusetts drinking water standard i.e., maximum contaminant level or MMOL for <br /> both WE and PCE is 5 ppb. Citizen concems voiced to the MHD regarded the need to <br /> f u-ther characterize opportunities for exposures from these and other private wells in the <br /> area. Concern was also expressed regarding adverse health effects,particularly adverse <br /> reproductive outcomesg., anecdotal reports of the occurrence of ascarnages in the <br /> area developmental toxicity, and neurotoxicity. The MDPH completed this health <br /> consultation aspart of them-cooperative grr ernent with the Agency for To,,�uc Substances <br /> and Disease � <br /> Re is (ATSDR). The results presented in this consultation reflect data <br /> Registry <br /> received by the NMPH as of September 9, 1996. <br /> B. CURRENT STATUS <br /> At present, residents in the affected area are not being exposed'to cherrricals in the <br /> groundwater grater at levels of concern through household use of water because bottled water <br /> and water filtration systems have been supplied to these homes (NiHD 1996). Shortly <br /> after the VOCs were detected in their wells in May 1996, the residents of AP 62 Lots 241 <br /> and Lot 72 were advised to use bottled water for cooking and drinking. Carbon filtration <br /> wits were fitted to the wells on AP 62 Lot 241 and Lot 72 on May , and.line 6, 19967 <br /> respectively IID 1996, Augat 1996, AEI 199c . The unfits were installed such that all <br /> the water entering hese houses e.g., for drinking or for bathing) and all water for <br /> outdoor usesg g., irrigation or filling pools) passes through the filters (Au.at 1996). <br /> These units have been checked weekly for efficiency at removing VOCs b collecting <br /> and analyzing samples from the effluent of the filter. All VOCs were belo t detection. in <br /> the samples collected after filtration AEI 1996c, Augat 1996). These weekly checks will <br /> continue until municipal water is supplied to the houses. <br /> Moreover, the MHD, with support from the M , requested and received funding to <br /> install water filtration units, to supply l bottled grater, and to test the well water �reekly at <br /> up to 40residences south of the facility with private wells until they were supplied <br /> municipal <br /> water in the fall of 1996. The Barnstable County Department of Health and the <br /> Environment performed the laboratory analyses of the residential well water samples <br /> collected by the MHD. Between June l and July 1, 1996, carbon filtration units were <br /> 'd <br /> installed on the wells of all the homeowners on Sampson"s Mill Road, Cranberry Ridge <br /> Road and Cape give Haat requested the service 1 wells in total including the filters on <br /> I <br />