Selecting Tier III Water Column Toxicity Standards for CDF Discharges: Statistical Alternatives

Abstract

This technical note describes problems inherent in interpreting water column toxicity tests and in selecting toxicity standards for evaluation of effluent and runoff resulting from upland placement of dredged material in confined disposal facilities (CDFs). The current procedure for comparing mixing zone elutriate concentration calculations with water column toxicity test results (employing 0.01 (LC50) as the water quality standard) is not based on statistical probability or toxicological effect, and can result in unnecessarily restrictive evaluations. Alternative statistical measures are presented that can serve as more realistic and interpretable Tier III water column toxicity standards.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2002
Accession Number
ADA410422

Entities

People

  • Jeffery A. Steevens
  • Joan U. Clarke
  • Paul R. Schroeder

Organizations

  • Engineer Research and Development Center

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Confidence Limits
  • Data Science
  • Data Sets
  • Ecology
  • Ecotoxicology
  • Environmental Pollutants
  • Environmental Protection
  • Factor Analysis
  • Information Science
  • Regression Analysis
  • Standards
  • Statistical Algorithms
  • Statistical Analysis
  • Statistical Tests
  • Toxicity
  • Water Quality

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