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 Exiting ATSDR Website

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

LIST OF TABLES

LIST OF FIGURES

LIST OF ABBREVIATIONS

SUMMARY

BACKGROUND

EVALUATION OF ENVIRONMENTAL CONTAMINATION AND POTENTIAL EXPOSURE PATHWAYS

COMMUNITY HEALTH CONCERNS

ATSDR CHILD HEALTH INITIATIVE

CONCLUSIONS

RECOMMENDATIONS

PUBLIC HEALTH ACTION PLAN

PREPARERS OF REPORT

REFERENCES

TABLES

FIGURES

APPENDICES


LIST OF TABLES

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 5. Summary of Past Data That Exceeded Comparison Values in Off-Base and On-Base Drinking Water Wells

Table 6. Summary of Data that Exceed Comparison Values for Water Supplies Affected by Off-Base Sources

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


LIST OF FIGURES

Figure 1: Vicinity Map

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


LIST OF ABBREVIATIONS

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

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