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

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...

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Main Authors: Clarke, Joan U, Schroeder, Paul R, Steevens, Jeffery A
Format: Report
Language:English
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CDF(CONFINED DISPOSAL FACILTIES)
DISPOSAL
DREDGED MATERIALS
FACILITIES
PROBABILITY
STATISTICS
TEST AND EVALUATION
TEST METHODS
TOXICITY
Water Pollution and Control
WATER QUALITY
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creator Clarke, Joan U
Schroeder, Paul R
Steevens, Jeffery A
description 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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source DTIC Technical Reports
subjects CDF(CONFINED DISPOSAL FACILTIES)
DISPOSAL
DREDGED MATERIALS
FACILITIES
PROBABILITY
STATISTICS
TEST AND EVALUATION
TEST METHODS
TOXICITY
Water Pollution and Control
WATER QUALITY
title Selecting Tier III Water Column Toxicity Standards for CDF Discharges: Statistical Alternatives
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