Skip to main content

DETERMINING MARGIN OF SAFETY FOR TMDLS

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

Section 303(d) of the Federal Clean Water Act (CWA) requires states to develop Total Maximum Daily Load (TMDL) management plans for waterbodies determined to be water quality limited. A TMDL documents the amount of a pollutant a waterbody can assimilate without violating applicable water quality standards. Water quality standards are set by States, Tribes and Territories at a level that is protective f the designated uses for waterbodies, such as drinking water supply, fisheries, primary contact recreation, livestock watering, etc. TMDLs are defined in 40 Code of Federal Regulations (CFR) Part 130 as the sum of the individual waste load allocations (WLAs) for point sources, load allocations (LAs) for nonpoint sources, and a margin of safety (MOS). TMDLs allocate a load capacity to known point sources and nonpoint sources at a given stream flow.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864702785664897

Publication date: 2002-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more