PUBLIC HEALTH ASSESSMENT
NAVAL AIR WARFARE CENTER
[a/k/a NAVAL AIR DEVELOPMENT CENTER (8 WASTE AREAS)]
WARMINSTER TOWNSHIP, BUCKS COUNTY, PENNSYLVANIA
EPA FACILITY ID: PA6170024545
September 25, 2002
Prepared by:
Federal Facilities Assessment Branch
Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry
TABLE OF CONTENTS
EVALUATION OF ENVIRONMENTAL CONTAMINATION AND POTENTIAL EXPOSURE PATHWAYS
Table 1. Population and Housing Data Table
Table 2. Completed Exposure Pathways at NAWC Warminster
Table 3. Completed Exposure Pathways from Water Supplies Affected by Off-Base Sources
Table 4. NAWC Past and Current Water Supply Wells
Table 7. Summary of Surface Soil Data that Exceed Comparison Values
Table 8. Summary of Surface Water Data that Exceed Comparison Values
Table 9. Summary of Sediment Data that Exceed Comparison Values
Figure 2: NAWC, Area Designations, and Surrounding Neighborhoods
Figure 3: Demographic Statistics
Figure 4: ATSDR's Exposure Evaluation Process
Figure 5: Fracture Trace Location Map
ATSDR | Agency for Toxic Substances and Disease Registry |
bgs | below ground surface |
BTEX | benzene, toluene, ethylbenzene, and xylenes |
BRAC | Base Realignment and Closure |
CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act |
CPF | cancer potency factor |
CREG | cancer risk evaluation guide |
CV | comparison value |
1,1-DCE | 1,1-dichloroethene |
cis-1,2-DCE | cis-1,2-dichloroethene |
EMEG | environmental media evaluation guide |
EPA | U.S. Environmental Protection Agency |
FFTA | Fire-Fighting Training Area |
FS | feasibility study |
HWA | Hatboro Water Authority |
LOAEL | lowest-observed-adverse-effect-level |
MCL | maximum contaminant level |
MCS | medium-specific concentrations |
mg/kg/day | milligram contaminant per kilogram body weight per day |
MRL | minimal risk level |
NAWC | Naval Air Warfare Center |
NOAEL | no-observed-adverse-effect-level |
NPL | National Priorities List |
OSHA | Occupational Safety and Health Administration |
OU | operable unit |
PADEP | Pennsylvania Department of Environmental Protection |
PADOH | Pennsylvania Department of Health |
PAH | polyaromatic hydrocarbon |
PCB | polychlorinated biphenyl |
PCE | tetrachloroethylene |
PHA | public health assessment |
PHAP | public health action plan |
ppb | parts per billion |
ppm | parts per million |
RAB | Restoration Advisory Board |
RBC | risk-based concentrations |
RCRA | Resource Conservation and Recovery Act |
RfD | reference dose |
RI | remedial investigation |
RMEG | reference media evaluation guide |
ROD | record of decision |
SMWA | Upper Southampton Municipal Water Authority |
SSL | EPA soil screening level |
TCE | trichloroethylene |
USGS | U.S. Geological Survey |
VOC | volatile organic compound |
WHDC | Warminster Heights Development Corporation |
WMWA | Warminster Municipal Water Authority |