BARKHAMSTED-NEW HARTFORD LANDFILL
BARKHAMSTED, LITCHFIELD COUNTY, CONNECTICUT
CONCLUSIONS
Based on the information reviewed, the ATSDR has concluded that this site represents no
apparent public health hazard.
Employees who drank water from either the Barkhamsted Landfill office well, or the
Barkhamsted Town Garage, received exposures to site related compounds for up to four years.
All exposures to site related contaminants in well water are below the levels reported to produce
health effects, and represent no apparent public health hazard. The exposure period for the landfill
office well was from 1980 through 1984. The Town Garage well exposure period was from 1986
to 1990. The exposure stopped when the wells were closed (1984-landfill office, 1990-Town
Garage).
Residents may have been exposed in the past, and may now be exposed to site-related
contaminants in private drinking water wells. However, all past and current exposures to site
related contaminants in these wells represent no apparent public health hazard, because the
exposures were/are not at levels expected to produce health effects.
Methane gas may be migrating into the Barkhamsted Landfill office, and this may present a
physical hazard.
Residents who live adjacent to the landfill may have been exposed to site-related contaminants
present in the surface soil of the two residential properties adjacent to the landfill. The site-related
contaminants represent no apparent public health hazard to either young children who often place
objects in their mouths, older children, or adults, because the levels of exposure were below levels that would produce health effects.
Lead was identified in several wells. The source of lead is probably from plumbing fixtures in the individual homes and not site-related. Exposure to lead in drinking water may increase an individuals total body burden of lead. Children under the age of six are at the greatest risk of exposure.
RECOMMENDATIONS
Sample methane gas from the Barkhamsted Landfill office.
Collect additional surface soil, subsurface, and sediment samples from new and existing
leachate seepage zones within the gravel pit.
Identify the proper abandonment status of all unused wells located on-site.
Engage dust suppression methods if remedial activities will involve ground disturbing activities.
Inform the residents who have site-related soil contamination detected in their soil.
Educate residents who have lead in their drinking water about ways of reducing lead exposure from household plumbing.
The CT DPH will continue to review private well sampling data as provided by the CT DEP.
LIST OF ABBREVIATIONS USED IN THIS DOCUMENT
BaP
Benzo(a)Pyrene
BLS
Barkhamsted-New Hartford Landfill Site
BRACE
Barkhamsted Residents Acting to Conserve the Environment
CREG
Cancer Risk Evaluation Guide
CT
Connecticut
CT DEP
Connecticut Department of Environmental Protection
CT DPH
Connecticut Department of Public Health
DDD
P,P`-dichlorodiphenyl dichloroethane
DDE
P,P`-dichlorodiphenyldichloroethylene
DDT
P,P`-dichlorodiphenyltrichloroethane
EMEG
Environmental Media Evaluation Guide
F
Fahrenheit
FVHD
Farmington Valley Health District
HARP
Health Activities Recommendation Panel
I.Q.
Intelligence Quotient
kg
kilogram
LEL
Lower Explosive Limit
LTHA
Lifetime Health Advisory
MCL
Maximum Contaminant Level
mg
Milligram
MRL
Minimal Risk Level
NPL
National Priorities List
OSHA
Occupational Safety and Health Administration
PCE
Tetrachloroethylene
PHA
Public Health Assessment
ppb
Parts per billion
ppm
Parts per million
ppmv
Parts per million by volume
RfD
Reference Dose
RI
Remedial Investigation
RMEG
Reference Dose Media Evaluation Guide
RRDD #1
Regional Refuse Disposal District Number One
SVOC
Semivolatile Organic Compound
TCE
Trichloroethylene
TRI
Toxic Release Inventory
BaP
Benzo(a)Pyrene
VOC
Volatile Organic Compound
PREPARERS OF REPORT
Gary D. Perlman, MPH
Epidemiologist
Environmental Epidemiology and Occupational Health
Connecticut Department of Public Health
ATSDR Regional Representative:
Louise House, RN, MA
ATSDR Region I
ATSDR Technical Project Officer:
Tina Forrester, Ph.D.
Superfund Site Assessment Branch
Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry
REFERENCES
O'Brien & Gere Engineers, Inc. Remedial Investigation Barkhamsted-New Hartford Landfill
Superfund Site Barkhamsted, Connecticut. February 1996.
ATSDR. Draft Interim Preliminary Health Assessment For Barkhamsted-New Hartford Landfill
Site New Hartford, Litchfield County, Connecticut CERCLIS NO. CTD980732333. December
16, 1991.
Metcalf & Eddy. Human Health Risk Assessment Third Interim Deliverable Barkhamsted-New
Hartford Landfill Superfund Site Barkhamsted, Connecticut. January 1995.
Correspondence from: Jane Dolan, Project Manager (US EPA Connecticut Superfund
Section), to: Louise House, ATSDR Regional Representative (ATSDR Region I). May 18, 1995.
Personal Communication between: Gary D. Perlman, Epidemiologist (Connecticut Department
of Public Health - Division of Environmental Epidemiology and Occupational Health), and Sally
Roy, Administrative Assistant (Barkhamsted Landfill). October 14, 1994 3:04 pm.
Personal Communication between: Gary D. Perlman, Epidemiologist (Connecticut Department
of Public Health - Division of Environmental Epidemiology and Occupational Health), and: Jim
Hart, Landfill Manger (Barkhamsted Landfill). June 19, 1995 3:40 pm.
Personal Communication between: Gary D. Perlman, Epidemiologist (Connecticut Department
of Public Health - Division of Environmental Epidemiology and Occupational Health), and:
Richard Marr, contact person (Barkhamsted Residents Acting to Conserve the Environment).
March 7, 1996 11:05 am.
U.S. Census Sample Count, Part A, Connecticut Population and Housing Characteristics,
August 1991.
U.S. EPA. Final Hazard Ranking System Package. Barkhamsted-New Hartford Landfill
Barkhamsted, Connecticut. September 25, 1987.
Correspondence from: Steven W. Peterson (Sanitarian), Farmington Valley Health District,
to: Taylor Mills, (Chairman, Regional Refuse District One). November 17, 1982.
Correspondence from: Steven W. Peterson (Sanitarian), Farmington Valley Health District,
to: Taylor Mills, (Chairman, Regional Refuse District One). June 15, 1983.
O'Brien & Gere Engineers, Inc. Draft Work Plan Limited Field Investigation (LFI) Summary
Report. Remedial Investigation Barkhamsted-New Hartford Landfill Superfund Site
Barkhamsted, Connecticut. February 1992.
U.S. EPA Technical Assistance Team. Barkhamsted Landfill Residential Tap Water Sampling,
Barkhamsted, CT. Correspondence and Drinking Water Sampling results from: United States
Environmental Protection Agency to: Barkhamsted Town Garage (Sir/Ms). April 13, 1988. April
13, 1988.
Correspondence and Drinking Water Sampling results from: United States Environmental
Protection Agency to: Barkhamsted Town Garage (Mr. Richard Flint). August 20, 1990.
Correspondence from: Paul E. Jameson, Environmental Analyst II (Connecticut Department
of Environmental Protection - Site Remediation & Closure Division, Waste Management Bureau),
to: Carmella Lattizori, First Selectman (Town of Barkhamsted). September 6, 1990.
Correspondence from: Carmella Lattizori, First Selectman (Town of Barkhamsted), to: Paul
E. Jameson, Environmental Analyst II (Connecticut Department of Environmental Protection -
Site Remediation & Closure Division, Waste Management Bureau). September 19, 1990.
Carmella Lattizori, First Selectman (Town of Barkhamsted). September 6, 1990.
Agency for Toxic Substances and Disease Registry, Toxicological Profile for Antimony,
September 1992.
Agency for Toxic Substances and Disease Registry, Toxicological Profile for Benzene,
August 1995.
Agency for Toxic Substances and Disease Registry, Toxicological Profile for Beryllium, April 1993.
Agency for Toxic Substances and Disease Registry, Toxicological Profile for Chromium, April
1993.
Agency for Toxic Substances and Disease Registry, Toxicological Profile for Manganese, July
1992.
Office of Water. U.S. EPA. Drinking Water Regulations and Health Advisories. Washington,
DC. February 1996.
Agency for Toxic Substances and Disease Registry, "Toxicological Profile for
Chloromethane", December 1990.
Correspondence from: Superfund Technical Support Center, Environmental Criteria and
Assessment Office, U.S. Environmental Protection Agency, to: Gary D. Perlman, Epidemiologist
(Connecticut Department of Public Health and Addiction Services - Division of Environmental
Epidemiology and Occupational Health). January 23, 1996.
Agency for Toxic Substances and Disease Registry, Toxicological Profile for Vanadium, July
1992.
U.S. EPA Region 1. Superfund Program Fact Sheet: Barkhamsted-New Hartford Landfill
Superfund Site. September 1992.
Agency for Toxic Substances and Disease Registry, Toxicological Profile for Selenium,
August 1994.
Agency for Toxic Substances and Disease Registry, Public Health ASSESSMENT Guidance
Manual. Lewis Publishers, Michigan. Page 5-7, Table 5.1. 1992.
PUBLIC COMMENTS
There were no written comments submitted to the CT DPH during the public comments period which began on October 21, 1996, and ended on November 25, 1996.
