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WET Interlab Study Final Report
Appendix to Final Report  
Stakeholder Comments on Design

WESTCAS #1

AMSA 

WESTCAS #2

UWAG

Official Peer-Review of Study Results
EPA Response to Peer Review Comments
Westcas Concerns with Study Report 
More Westcas Concerns 

In 1999, EPA undertook several large-scale interlaboratory studies to investigate the problem of variability in whole effluent toxicity testing. EPA's final report was published on September 28, 2001.

EPA also published the official peer review comments on the results and their response to the peer review comments.

Westcas submitted some concerns of their own.

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