Performance Evaluation Studies on Wastewater Laboratories (Renewal)

Discharge Monitoring Report-Quality Assurance (DMR-QA) study program participation is mandatory for major and selected minor National Pollutant Discharge Elimination System (NPDES) permit holders in accordance with Clean Water Act Section 308. The DMR-QA study program is designed to evaluate the analytic ability of the laboratories that perform chemical, microbiological and whole effluent toxicity (WET) analyses required in the NPDES permits for reporting results in Discharge Monitoring Reports (DMR). Under DMR-QA, the permit holder is responsible for having their in-house and/or contract laboratories perform proficiency tests and submit results for grading by proficiency test (PT) providers. Graded results are transmitted by either the permittee or PT provider to the appropriate federal or state NPDES regulatory authority. Permit holders are responsible for submitting corrective action reports to the appropriate regulatory authority when results are unsatisfactory.

The latest form for Performance Evaluation Studies on Wastewater Laboratories (Renewal) expires 2023-05-31 and can be found here.

Private Sector Permittees

Federal Enterprise Architecture: Environmental Management - Environmental Monitoring and Forecasting

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