NPDES WET Programmatic Documents
NPDES WET programmatic memos and documents.
- Clarifications Regarding Toxicity Reduction and Identification Evaluations in the National Pollutant Discharge Elimination System Program (03/27/2001) (pdf)
- Clarifications Regarding Toxicity Reduction and Identification Evaluations in the NPDES Program Memo (pdf)
- EPA Whole Effluent Toxicity (WET) Control Policy (07/01/1994) (pdf)
- Factsheet on the Whole Effluent Toxicity (WET) Analysis Spreadsheet (pdf)
- Memorandum: Certification of "Accuracy" of Information Submissions of Test Results Measuring Whole Effluent Toxicity (03/03/2000) (pdf)
- National Policy Regarding Whole Effluent Toxicity (WET) Enforcement (08/14/1995) (pdf)
- National Pollutant Discharge Elimination System Test of Significant Toxicity Implementation Document (06/01/2010) Memo (pdf)
- National Pollutant Discharge Elimination System Test of Significant Toxicity Implementation Document (06/01/2010): Implementation Document (pdf)
- National Pollutant Discharge Elimination System Test of Significant Toxicity Technical Document (06/01/2010) (pdf)
- National Pollutant Discharge Elimination System Whole Effluent Toxicity (WET) Permit Writers’ Manual (July 2024) (pdf)
- National Pollutant Discharge Elimination System Whole Effluent Toxicity (WET) Permit Writers’ Manual - Fact Sheet (July 2024) (pdf)
- Toxicity Reduction Evaluation Guidance for Municipal Wastewater Treatment Plants (pdf)
- Understanding and Accounting for Method Variability in Whole Effluent Toxicity Applications Under the NPDES Program (pdf)
- Whole Effluent Toxicity (WET) Control Policy (07/01/1994) (pdf)