NPL Site Narrative for Henderson Road
Upper Merion Township, Pennsylvania
Federal Register Notice: September 21, 1984
Conditions at listing (September 1983): The Henderson Road Site in Upper Merion Township, Pennsylvania, is a well that contains such chemical wastes as benzene, chloroform, and 1,1-dichloroethane, according to tests conducted by Philadelphia Suburban Water Co. and EPA. These wastes pose a major threat to ground water and surface water. The Upper Merion Reservoir about 0.3 mile north of the site provides between 8 and 12 percent of the water annually distributed by the water company to its more than 800,000 customers. EPA drilled monitoring wells on- and off-site in January 1981, and took samples then and in February 1983. The results confirmed ground water contamination.
Status (June 1984): Using CERCLA funds, the State is undertaking a remedial investigation/feasibility study to determine the type and extent of contamination at the site and identify alternatives for remedial action.
For more information about the hazardous substances identified in this narrative summary, including general information regarding the effects of exposure to these substances on human health, please see the Agency for Toxic Substances and Disease Registry (ATSDR) ToxFAQs. ATSDR ToxFAQs can be found on the Internet at ATSDR - ToxFAQs (http://www.atsdr.cdc.gov/toxfaqs/index.asp) or by telephone at 1-888-42-ATSDR or 1-888-422-8737.