PUBLIC HEALTH ASSESSMENT ADDENDUM

LETTERKENNY ARMY DEPOT
USA LETTERKENNY SOUTHEAST AREA
CHAMBERSBURG, FRANKLIN COUNTY, PENNSYLVANIA
CERCLIS NO. PA6213820503
AND
USA LETTERKENNY - PROPERTY DISPOSAL OFFICE AREA
CHAMBERSBURG, FRANKLIN COUNTY, PENNSYLVANIA
CERCLIS NO. PA2210090054

May 25, 1993

Prepared by:

AGENCY FOR TOXIC SUBSTANCES AND DISEASE REGISTRY
Division of Health Assessment and Consultation
Federal Programs Branch
Defense Facilities Assessment Section

TABLE OF CONTENTS

SUMMARY

BACKGROUND

A. Site Description and History
B. Site Visit
C. Demographics, Land Use, and Natural Resource Use
D. Health Outcome Data

COMMUNITY HEALTH CONCERNS

ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS

A. Introduction
B. On-site Contamination
C. Off-site Contamination
D. Quality Assurance and Quality Control
E. Physical and other Hazards

PATHWAYS ANALYSES

A. Introduction
B. Hydrogeologic Overview
C. Southeastern Area - Surface Water/Groundwater Pathway
D. Property Disposal Office Area - Surface Water/Groundwater Pathway
E. SE, PDO, AD/AS Areas^** - Soils
F. SE, PDO, and AD/AS Areas - Food Chain

PUBLIC HEALTH IMPLICATIONS

A. Introduction
B. Toxicologic Evaluation
C. Health Outcome Data Evaluation
D. Community Health Concerns Evaluation

CONCLUSIONS

RECOMMENDATIONS

PREPARERS OF REPORT

REFERENCES

APPENDICES

Appendix 1: Public Health Assessment for Letterkenny Army Depot
Appendix 2: Figures
Appendix 3: Tables
Appendix 4: Site Observations
Appendix 5: Comparison Values, Health Guidelines, and Quantitative Units
Appendix 6: Public Comments on Letterkenny Army Depot Public Health Assessment

^** An explanation of these acronyms appear in the Background section.

LIST OF FIGURES

Figure 1: Franklin County and Chambersburg Demographics, 1990

Figure 2: Housing and Population Data for the Area Where Wells Were Replaced Off-Site of the SE Area

Figure 3: Land Use of Areas Surrounding Letterkenny Army Depot

Figure 4: Private Wells and Municipal Water Wells Off-Site of the SE Area (Near Gate 6)

Figure 5: Private Wells and Municipal Water Wells Off-Site of the PDO Area (Near Gate 1)

Figure 6: Potential Contaminant Source Areas: SE Area

Figure 7: Confirmed Source Areas: PDO Area

Figure 8: Groundwater Contour Map for the PDO Area

LIST OF TABLES

Table 1: Cancer Mortality Rates for Greene Township

Table 2: Cancer Mortality Rates for Hamilton Township

Table 3: Cancer Mortality Rates for Letterkenny Township

Table 4: Environmental Contaminants: SE Area

Table 5: Environmental Contaminants: PDO Area

Table 6: Off-Site Residential Wells Near the SE and PDO Areas and Off-Site Creeks and Springs

Table 7: Potential and Completed Exposure Pathways: SE Area

Table 8: Potential and Completed Exposure Pathways: PDO and AD/AS Areas

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