Sometimes a Great Notion: NPDES Permit Training by US EPA. By Dan HullJanuary 25, 2011February 27, 2025Uncategorized Wastewater Permitting the Right Way. A Permit Writers’ Course. Worthwhile, and something that doesn’t happen every day. Live or on-line. Or five days if you want it. See Environmental Protection magazine and www.epa.gov/npdes/training.