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PUBLIC HEALTH ASSESSMENT

NEW BRIGHTON/ARDEN HILLS
(a/k/a U.S. ARMY TWIN CITIES AMMUNITION PLANT)
NEW BRIGHTON, RAMSEY COUNTY, MINNESOTA
EPA FACILITY ID: MN7213820908

May 24, 1994

Prepared by:

Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry


SPECIAL NOTE
FOR
PEOPLE USING NEW BRIGHTON
OR ST. ANTHONY MUNICIPAL WATER SUPPLIES OR
TWIN CITIES ARMY AMMUNTION PLANT WATER SUPPLIES

THE MINNESOTA DEPARTMENT OF HEALTH HAS REVIEWED THE TESTS OF THE MUNICIPAL WATER SUPPLIES FOR NEW BRIGHTON, ST. ANTHONY, AND THE TWIN CITIES ARMY AMMUNITION PLANT (TCAAP) AND HAS FOUND THAT THOSE SUPPLIES ARE IN FULL COMPLIANCE WITH ALL STATE AND FEDERAL DRINKING WATER STANDARDS. FROM INFORMATION PROVIDED BY THE MINNESOTA DEPARTMENT OF HEALTH, THE CITY OF NEW BRIGHTON, THE MINNESOTA POLLUTION CONTROL AGENCY, THE U.S. ENVIRONMENTAL PROTECTION AGENCY, AND THE U.S. ARMY, HEALTH ASSESSORS DO NOT IDENTIFY ANY CURRENT OR FUTURE HEALTH HAZARDS FOR USERS OF MUNICIPAL WATER SUPPLIES IN THE CITIES NAMED. IF YOU HAVE ANY QUESTIONS ABOUT YOUR MUNICIPAL WATER SUPPLY, PLEASE CONTACT ONE OR MORE OF THE FOLLOWING PERSONS:

  1. IN NEW BRIGHTON:
    Les Proper, P.E., Director of Public Works
    City of New Brighton
    803 Fifth Avenue NW
    New Brighton, MN 55112-2792
    Telephone: (612) 631-3736
    FAX: (612) 636-5053


  2. IN ST. ANTHONY:
    Tom Burt, City Manager
    City of St. Anthony Village
    3301 Silver Lake Road
    St. Anthony Village, MN 55418-1699
    Telephone: (612) 789-8881
    FAX: (612) 789-9602


  3. TWIN CITIES ARMY AMMUNITION PLANT
    Michael R. Fix
    Commander's Representative
    Twin Cities Army Ammunition Plant
    New Brighton, MN 55112-5700]


  4. MINNESOTA DEPARTMENT OF HEALTH
    Richard Clark, P.E., Supervisor, Public Water Supply Unit
    Water Supply and Well Management
    925 SE Delaware Street
    P.O. Box 59040
    Minneapolis, MN 55459-0040

TABLE OF CONTENTS

SUMMARY

BACKGROUND

COMMUNITY HEALTH CONCERNS

ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS

PATHWAYS ANALYSES

PUBLIC HEALTH IMPLICATIONS

CONCLUSIONS

RECOMMENDATIONS

HEALTH ACTIVITIES RECOMMENDATIONS PANEL RECOMMENDATIONS

PUBLIC HEALTH ACTIONS

PREPARERS OF REPORT

REFERENCES

APPENDIX A: Figures

APPENDIX B: Demographic Data

APPENDIX C: On-TCAAP Site Description

APPENDIX D: Health Outcome Data

APPENDIX E: Comparison Values

APPENDIX F: Response to Public Comments


LIST OF TABLES

Table 1. Contaminants of Concern measured in On-TCAAP Production Wells and in Arden Hills Training Center Water Taps in 1981. Concentrations reported as parts per billion (ppb).
Table 3. 1982 MAXIMUM CONCENTRATIONS OF CONTAMINANTS IN PRIVATE WELLS WITHIN THE NORTH PLUME (all concentrations and values in parts per billion).
Table 4. 1982-84 MAXIMUM CONCENTRATIONS OF CONTAMINANTS IN PRIVATE WELLS IN THE HILLSIDE SAND AQUIFER WITHIN THE SOUTH PLUME (all concentrations and values in parts per billion).
Table 6. MAXIMUM CONCENTRATIONS OF CONTAMINANTS IN EDGETOWN ACRES SUBDIVISION PRIVATE WELLS, OFF-SITE MONITORING WELL #01U902, AND ON-SITE MONITORING WELL #01U117. (All values are expressed in parts per billion)
Table 7. 1981 MAXIMUM CONCENTRATIONS OF CONTAMINANTS IN ARDEN MANOR MOBILE HOME PARK WELLS. (All concentrations expressed as parts per billion).
Table 8. 1981 MAXIMUM CONCENTRATIONS OF CONTAMINANTS IN NEW BRIGHTON MUNICIPAL WELLS (identified by well # and MN Unique #; concentrations in parts per billion [ppb]).
Table 9. 1982 COMPARISON OF TAP WATER SAMPLES AND SAMPLES FROM NEW BRIGHTON MUNICIPAL WELL #3 (all concentrations and comparison values in parts per billion [ppb])
Table 10. 1981 MAXIMUM CONCENTRATIONS OF CONTAMINANTS IN A COMMERCIAL WELL WEST OF TCAAP.
Table 11. MAXIMUM CONTAMINANT CONCENTRATIONS IN ROUND LAKE SEDIMENTS (concentrations expressed as parts per million [ppm])
Table 12. PAST COMPLETED EXPOSURE PATHWAYS THAT NO LONGER EXIST
Table 13. PAST COMPLETED EXPOSURE PATHWAYS
Table 19. Number of Persons Reporting Symptoms


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