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PUBLIC HEALTH ASSESSMENT

SHERWOOD MEDICAL COMPANY
NORFOLK, MADISON COUNTY, NEBRASKA
CERCLIS No. NED084626100

September 3, 1997

Prepared by:

U.S. Department of Health and Human Services
Public Health Service
Agency for Toxic Substances and Disease Registry
Division of Health Assessment and Consultation
Atlanta, Georgia


TABLE OF CONTENTS

LIST OF TABLES

LIST OF FIGURES

SUMMARY

BACKGROUND

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

COMMUNITY HEALTH CONCERNS

ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS

    A. On-Site Contamination
    B. Off-Site Contamination
    C. Toxics Release Inventory (TRI) Review
    D. Quality Assurance and Quality Control
    E. Physical and Other Hazards

PATHWAYS ANALYSES

    A. Completed Exposure Pathways
    B. Potential Exposure Pathways
    C. Eliminated Exposure Pathways

PUBLIC HEALTH IMPLICATIONS

    A. Toxicological Evaluation
    B. Health Outcome Data Evaluation
    C. Community Health Concerns Evaluation

CONCLUSIONS

RECOMMENDATIONS

PREPARERS OF REPORT

REFERENCES

APPENDIX A - FIGURES

APPENDIX B - RESPONSE TO PUBLIC COMMENTS


LIST OF TABLES

Table 1a. Contaminant Concentrations in On-site Waste Materials (Liquid Wastes from UST & Septic Tank)

Table 1b. Contaminant Concentrations in On-site Waste Materials (Sludge Solids from UST & Septic Tank)

Table 1c. Contaminant Concentrations in On-site Waste Materials (Wastewater Discharges to Sherwood Lake)

Table 2a. Contaminant Concentrations in On-site Soil Samples (at depths between 0' and 14') - Stages I & IB

Table 2b. Contaminant Concentrations in On-site Soil Samples (at depths between 0' and 12') - Stage II

Table 3a. Contaminant Concentrations in On-site Groundwater Monitoring Well Samples (Rounds 1, 2, and 3)

Table 3b. Contaminant Concentrations in On-site Groundwater Monitoring Well Samples (Round 4)

Table 4. Contaminant Concentrations in On-site Groundwater Supply Wells

Table 5. Contaminant Concentrations in On-site Surface Water Samples (Sherwood Lake)

Table 6. Contaminant Concentrations in On-site Sediment Samples (Sherwood Lake)

Table 7. Contaminant Concentrations in On-site Soil Gas Samples

Table 8. Contaminant Concentrations in Off-site Soil Samples (Depths between 6' and 8')

Table 9. Contaminant Concentrations in Off-site Groundwater Monitoring Wells

Table 10a. Contaminant Concentrations in Park Mobile Home Court Wells (Main & Backup)

Table 10b. Contaminant Concentrations in Off-site Private Wells (excluding PMHC wells)

Table 11. Contaminant Concentrations in Off-site Soil Gas Samples

Table 12. Completed Exposure Pathways

Table 13. Potential Exposure Pathways

Table 14. Estimated Population for Completed Exposure Pathways

Table 15. Estimated Population for Potential Exposure Pathways


LIST OF FIGURES

Figure 1. Site Location Map

Figure 2. Local Map

Figure 3. Site Map

Figure 4. Sampling Locations

Figure 5. Location of Two Ground Water Plumes

Figure 6. Soil Gas VOC Isoconcentration Map with Select VOC Soil Sample Results



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