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HEALTH CONSULTATION

HART COUNTY LANDFILL:
PRIVATE WELL CONTAMINATION INVESTIGATION
HARTWELL, HART COUNTY, GEORGIA


TABLE 1

Well sampling results for Addie Wells Residence

Contaminant Name Sample Results (ppb) MCL ATSDR Comparison Value
benzene 0.79 5 1 (CREG)
chlorobenzene 0.5 100 200 (chronic RMEG)
cis-1,2 dichloroethene 1.68 70 3,000 (int. child EMEG)
trichloroethylene 4.8 5 3 (CREG)


Table 2
EXPOSURE AND DEMOGRAPHIC STRUCTURE FILE
Total Population Estimates Table

Pathway
Name
Unknown Estimated
Pop. in
Pathway
Range
Minimum
Range
Maximum
a. Pot.
Pathways
On-site
       
b. Pot.
Pathways
Off-site
       
c. Total
Pot. On
and Off-site
       
d. Compl.
Pathways
On-site
       
e. Compl.
Pathways
Off-site
  2 1 3
f. Total
Compl. On
and Off-site
  2 1 3
g. Pot.
and
Compl.
Pathways
On-site
       
h. Pot.
and
Compl.
Pathways
Off-site
  2 1 3
I. Total
Pot. and
Compl. On
and Off-site
  2 1 3


Table 3

EXPOSURE AND DEMOGRAPHIC STRUCTURE FILE - Completed Exposure Pathway Table - OFF SITE

Pathway Name: Source Medium Exposure

Point

Exposure Route Receptor Population Time of Exposure Exposure Activities Estimated Number Exposed Chemicals (identify by name or reference to tables in document)
Off-site Groundwater Landfill and/or other source Groundwater Drinking water taps Ingestion Residents at the Wells home (2) Past Drinking of contaminated water through in-home taps. 2 Trichloroethylene (Table 1)


INTERPRETATION OF MINIMAL RISK LEVELS

Where sufficient toxicologic information is available, ATSDR has derived minimal risk levels (MRLs) for inhalation and oral routes of entry at each duration of exposure (acute, intermediate, and chronic). An MRL is an estimate of the daily human exposure to a hazardous substance that is likely to be without appreciable risk of adverse noncancer health effects over a specified duration of exposure. MRLs are based on noncancer health effects only and are not based on a consideration of cancer effects. These MRLs are not meant to support regulatory action, but to acquaint health professionals with exposure levels at which adverse health effects are not expected to occur in humans. They should help physicians and public health officials determine the safety of a community living near a chemical emission, given the concentration of a contaminant in air or the estimated daily dose in water. MRLs are based largely on toxicological studies in animals and on reports of human occupational exposure.



Table of Contents

 
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Agency for Toxic Substances and Disease Registry, 4770 Buford Hwy NE, Atlanta, GA 30341
Contact CDC: 800-232-4636 / TTY: 888-232-6348

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