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Notice of Availability of the Beta Streamflow Duration Assessment Method for the Northeast: The method, data forms, and training opportunities are available at: https://www.epa.gov/streamflow-duration-assessment/beta-streamflow-duration-assessment-method-northeast-and-southeast. For additional information on the development of regional Streamflow Duration Assessment Methods for nationwide coverage, see: https://www.epa.gov/streamflow-duration-assessment.