REPORT DOCUMENTATION PAGE

Form Approved

REPORT DOCUMENTATION PAGE

OMB No. 0704-0188

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1. AGENCY USE ONLY (Leave blank)

2. REPORT DATE

3. REPORT TYPE AND DATES COVERED

December 1999

Final report

4. TITLE AND SUBTITLE

5. FUNDING NUMBERS

Ecological and Human Health Risk Assessment Guidance for Aquatic Environments

6. AUTHOR(S)

Jerome J. Cura, Wendy Heiger-Bernays, Todd S. Bridges, David W. Moore

7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)

8. PERFORMING ORGANIZATION

Menzie-Cura and Associates, Inc.

REPORT NUMBER

One Courthouse Lane, Suite Two, Chelmsford, MA 01824;

Technical Report DOER-4

U.S. Army Engineer Research and Development Center

3909 Halls Ferry Road, Vicksburg, MS 39180-6199

9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)

10. SPONSORING/MONITORING

AGENCY REPORT NUMBER

U.S. Army Corps of Engineers

Washington, DC 20314-1000

11. SUPPLEMENTARY NOTES

12a. DISTRIBUTION/AVAILABILITY STATEMENT

12b. DISTRIBUTION CODE

Approved for public release; distribution is unlimited.

13. ABSTRACT (Maximum 200 words)

This document provides guidance for conducting ecological and human health risk assessments at aquatic sites po-

tentially impacted by dredged material management activities.

Risk assessment is the process of evaluating the impact of a chemical or physical condition upon the health of indi-

vidual humans or the environmental well-being of a population or community of animals and plants. The former is

called human health risk assessment, and the latter ecological risk assessment.

The project manager should decide to apply a risk assessment within the context of the site selection process and/or

the four-tiered evaluation of dredged material, or when there are unresolved issues with regard to potential human or

ecological exposures. It is most applicable to projects which have:

a. Reached Tier IV and concern about specific bioaccumulative compounds or toxic compounds remains.

b. The potential to affect a local sensitive habitat or species.

c. Outstanding exposure issues where a risk assessment will allow realistic use of information about a species'

natural history such as foraging areas, breeding times, migration patterns.

(Continued)

14. SUBJECT TERMS

15. NUMBER OF PAGES

Contaminated sediment

Open-water disposal

250

Dredged material

Human health risk

16. PRICE CODE

Ecological risk assessment

17. SECURITY CLASSIFICATION

18. SECURITY CLASSIFICATION

19. SECURITY CLASSIFICATION

20. LIMITATION OF ABSTRACT

OF REPORT

OF THIS PAGE

OF ABSTRACT

UNCLASSIFIED

Standard Form 298 (Rev. 2-89)

NSN 7540-01-280-5500

Prescribed by ANSI Std. Z39-18

298-102