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PUBLIC HEALTH ASSESSMENT

NAVAL AIR STATION WHIDBEY ISLAND (AULT FIELD AND SEAPLANE BASE)
OAK HARBOR, ISLAND COUNTY, WASHINGTON
EPA FACILITY ID: WA5170090059 (AULT FIELD)
EPA FACILITY ID: WA6170090058 (SEAPLANE BASE)

September 28, 1993

TABLE OF CONTENTS

LIST OF FIGURES

LIST OF TABLES

ATSDR AND THE PUBLIC HEALTH ASSESSMENT PROCESS AT DEPARTMENT OF DEFENSE FACILITIES

SUMMARY

BACKGROUND

COMMUNITY HEALTH CONCERNS

ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS

PATHWAYS ANALYSES

PUBLIC HEALTH IMPLICATIONS

CONCLUSIONS

RECOMMENDATIONS

PUBLIC HEALTH ACTIONS

PREPARERS OF REPORT

REFERENCES

APPENDICES


LIST OF FIGURES

Figure 1. NAS Whidbey Island, Ault Field and Seaplane Base

Figure 2. NAS Whidbey Island, Operable Units

Figure 3. Operable Unit 1, Areas 5 and 6

Figure 4. Operable Unit 2, Areas 2, 3, 4, 14, and 29

Figure 5. Operable Unit 3, Areas 16 and 31, and Location of Base Wells.

Figure 6. Operable Unit 4, Seaplane Base; Areas 39, 41, 44, 48, and 49

Figure 7. Proposed Operable Unit 5, Areas 1 and 52

Figure 8. Hazardous Waste Evaluation Study Areas

Figure 9. Ault Field Central Core Areas

Figure 10. Lake Hancock Target Range

Figure 11. Ault Field Underground Storage Tank Program

Figure 12. Seaplane Base Underground Storage Tank Program

Figure 13. NAS Whidbey Island Ecosystems

Figure 14. Area 52 Apparent Product Thickness Contours

Figure 15. Area 6 Estimated Limits of Groundwater Contamination

Figure 16. Census Tracts and Block Groups Around NAS Whidbey Island


LIST OF TABLES

Table 1. Dates of Investigations and Significant Events

Table 2. Operable Unit 1, Areas Under Investigation

Table 3. Operable Unit 1, Investigations and Actions

Table 4. Operable Unit 2, Areas Under Investigation

Table 5. Operable Unit 3, Areas Under Investigation

Table 6. Operable Unit 4, Areas Under Investigation

Table 7. Operable Unit 5, Areas Under Investigation

Table 8. Hazardous Waste Evaluation Study Areas Under Investigation

Table 9. Summary of Detected Compounds in Operable Unit 1

Table 10. Contaminant Concentrations at Operable Unit 1

Table 11. Contaminant Concentrations at Operable Unit 1

Table 12. Contaminant Concentrations in On-site Groundwater Monitoring Wells, Operable Unit 1, Area 6

Table 13. Contaminant Concentrations at Operable Unit 2

Table 14. Contaminant Concentrations at Operable Unit 2

Table 15. Contaminant Concentrations at Operable Unit 3

Table 16. Contaminant Concentrations at Operable Unit 4, Seaplane Base

Table 17. Contaminant Concentrations at Operable Unit 4, Seaplane Base

Table 18. Contaminant Concentrations at Operable Unit 5

Table 19. Contaminant Concentrations at Operable Unit 5

Table 20. Contaminant Concentration in Off-Site Shellfish

Table 21. Off-Site Contaminant Concentrations in Groundwater at Operable Unit 1

Table 22. NAS Whidbey Island Potential Exposure Pathways

Table 23. Estimated Population for Potential Exposure Pathways

Table 24. Invasive Cancer Incidence for Females, Island County, Washington

Table 25. Invasive Cancer Incidence for Males, Island County, Washington

Table 26. NAS Whidbey Island Population Data

Table 27. NAS Whidbey Island Housing Data

Table 28. Chronology of Operable Unit 1 Field Investigations Conducted Prior to Current Remedial Investigation

Table 29. Chronology of Operable Unit 1 Field Investigation Related to Current Remedial Investigation

Table 30. NAS Whidbey Island - Areas Under Investigation



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