A series of papers describing case studies that followed the 4b process alternative to TMDLs in several studies. Published in the Water Environment Federation’s TMDL2009 conference proceedings.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Category 4b Demonstration for Atrazine Impaired Waters in the Little Arkansas River Subbasin, Kansas (PDF)(15 pp, 253 K)
- Category 4b Demonstration for Petroleum Hydrocarbon Impaired Waters in the Kenai River, Alaska (PDF)(10 pp, 136 K)
- Category 4b Demonstration for Pathogen Impaired Tributaries to Pugent Sound in Kitsap County, Washington (PDF)(9 pp, 55 K)
- Category 4b - Demonstration for Point Source Impaired Waters and the Permit in Lieu of a Total Maximum Daily Load Process for the State of Missouri (PDF)(9 pp, 39 K)