PUBLIC HEALTH ASSESSMENT
Troy Mills Landfill
Troy, Cheshire County, New Hampshire
EPA ID No. GAD980559413
October 28, 2004
Bureau of Environmental and Occupational Health
New Hampshire Department of Environmental Services
Under a Cooperative Agreement with
Agency for Toxic Substances and Disease Registry
TABLE OF CONTENTS
Background and Statement of Issues
- Site Description and History
- Site Visit
- Demographics and Land Use
- DHHS Involvement
- Quality Assurance/Control (QA/QC)
- Assessment Methodology
- Environmental Contamination
- Analysis of Exposure Pathways
- Public Health Implications of Exposure
Community Health Concerns
Children's Health Considerations
Public Health Action Plan
Preparers of Report
Appendix A: Figures
- Figure 1: Area Map of Troy Mills Landfill Site and Surrounding Communities.
- Figure 2: General Map of Troy Mills Landfill Site.
- Figure 3: General Map of Troy Mills Landfill Site and Adjacent Wetlands Area.
- Figure 4: Population Distribution for Town of Troy, NH.
- Table 1: Summary of Troy Mills Landfill Groundwater Monitoring 1982-2001.
- Table 2: Summary of Soil/Source Sample Analytical Results for Troy Mills Landfill December 2001
- Table 3: Summary of Surface Water Sample Analytical Results for Troy Mills Landfill December 2001
- Table 4: Summary of Sediment Sample Analytical Results for Troy Mills Landfill December 2001
- Table 5: Summary of Analytical Results for Sediment Sample Analysis for Sand Dam Pond October 2001
Appendix D: Description of Health Comparison Values
Appendix E: Educational Needs Assessment for the Troy Mills Landfill Site
Appendix F: ATSDR Public Health Hazard Categories
Appendix G: Written Comments on Public Comment Release
The Troy Mills Landfill (TML), also called the Rockwood Brook Landfill, is located in a mostly wooded, 270-acre property about 1.5 miles south from the town center of Troy, New Hampshire. The landfill owner, Troy Mills, Inc., is a local fabric manufacturer. The company used the 10-acre landfill from 1967 until 2001 as an industrial waste disposal area. The U.S. Environmental Protection Agency (EPA) and the New Hampshire Department of Environmental Services (DES) identified elevated levels of metals, volatile organic compounds (VOCs), and semivolatile organic compounds (SVOCs) leaking from containerized waste at the landfill.
The National Priorities List
The National Priorities List (NPL) is a list maintained by the EPA of the most serious hazardous waste sites identified for possible long-term cleanup. The NPL is part of Superfund, which is a federal program created to clean up hazardous waste sites throughout the country. In 1992, Troy Mills completed a feasibility study detailing a proposed remedy that included capping the inactive disposal area and installing additional monitoring wells. If necessary, the company would also implement a groundwater recovery and treatment system. The company, in cooperation with the DES, then completed a detailed design study. The company filed for bankruptcy protection in 2001 and could not implement the remedial design previously approved by the DES in 2000. On September 26, 2003 the Troy Mills Landfill was added to the National Priorities List. Later that year, EPA began a removal action at the site to reduce the spread of contaminants from the landfill to a nearby wetlands area.
What kind of chemical contamination has been found on the site?
From 1967 to 1978, the company disposed an estimated 6,000-10,000 drums of liquid wastes and sludges containing Varsol, plasticizers, vinyl resins, pigments, and top-coating products over an approximately 2-acre area. After 1978, the remaining 8 acres were used to dispose of waste fabric scraps and other solid waste from the company's manufacturing complex.
Chemical wastes disposed at the site contain a large number of chemical constituents. These chemicals include di(2-ethylhexyl) phthalate, di-n-octyl phthalate, acetone, cis-1,2-dichloroethene, methyl ethyl ketone, methylene chloride, toluene, xylenes, and chromium. These chemicals have been detected in groundwater underlying the site. Of these chemicals, cis-1,2-dichloroethene and di(2-ethylhexyl) phthalate have been detected in surface water near the site.
How might I be exposed to chemical contamination at the site?
A description of the way that a chemical moves from its source (where it began) to where and how people can come into contact with (or get exposed to) the chemical.
ATSDR defines an exposure pathway as having five parts:
- Source of contamination,
- Environmental media and transport mechanism,
- Point of exposure,
- Route of exposure, and
- Receptor population.
The groundwater beneath the drum disposal area has been contaminated with a number of chemical substances associated with past waste disposal practices at the site. This groundwater is not being used as a source of water supply. Individuals are not being exposed to TML-related contaminants in groundwater.
Environmental samples that have been collected in Rockwood Brook downstream from the TML and in Sand Dam Pond do not indicate that these areas have been affected by releases from the TML. Individuals who swim, wade, or do other recreational activities in Sand Dam Pond are not being exposed to TML-related contaminants.
What health effects might result from exposure to chemical contamination at the site?
|Adverse Health Effects
A change in the body function or the structures of cells that can lead to disease or health problems.
Could current or past exposures to chemical contamination at the site have caused an increased rate of cancer in the community?
No. Given the low levels of contaminants found and the limited opportunities for exposure at the site, exposure to potential cancer causing chemicals should not result in increased cancer rates in the community.
Is the site being cleaned up?
Yes. In late 2003, EPA began work to construct a temporary containment system at the site. EPA installed three separate interceptor trenches, each one totaling approximately 100 feet, to intercept groundwater contaminants seeping into nearby wetlands. Once the containment system is operational, DES will remove floating contamination for disposal at an off-site location. Now that the TML has been added to the National Priorities List (Superfund), it is eligible for clean up under the Superfund program. Individuals who are interested in this issue should contact the EPA Regional 1 office in Boston, Massachusetts, for additional information.
Where can I get more information?
Public Health Assessment
A report or document that evaluates chemical releases at a hazardous waste site and determines if people could be harmed from coming into contact with those chemicals. The PHA also identifies if further public health actions are needed. The text and appendices of the Public Health Assessment contain more information about the health issues discussed in this summary. To ask questions about this Public Health Assessment or to obtain extra copies of this document, please contact Dennis Pinski in the New Hampshire Department of Environmental Services, Bureau of Environmental and Occupational Health at (603) 271-6909. You can also send an e-mail to the Bureau by visiting its website at: http://des.nh.gov/EOH.
Additional copies of this Public Health Assessment will be available at the Troy and Fitzwilliam Town Halls and Public Library in Troy, New Hampshire.
If you would like more information on the site cleanup efforts, please contact Tom Hatzopoulos, EPA's on-scene coordinator, at (617) 918-1284, or John Splendore, of DES, at (603) 271-5569.