Skip to main content

Maine's Statewide TMDL Approach, the Easy Way Out?

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

Maine DEP has been working with USEPA to develop statewide TMDL's approaches for 303d listed waters that share the same impairments. In 2009 USEPA approved Maine's Statewide Bacteria TMDL that covered all freshwater and marine listed segments, including both point and nonpoint sources. Besides setting TMDL water quality targets, the document is an overview of Maine's water quality standards and the various state programs designed to address different types of bacterial contamination. Maine is currently developing a statewide approach for urban streams that are impaired for aquatic life using the Impervious Cover Method(IC). Maine has had success with EPA approval of IC TMDLs on waters where urban stormwater is designated as the cause of observed impairments. The IC TMDL is a relatively simple GIS analysis that uses impervious cover as a surrogate for stormwater impacts, which has been linked directly to Maine's macroinvertebrate sampling results. This TMDL defines a %IC targets and identifies the pollutant load as the existing %IC in the watershed. The wasteload and load allocations are defined as the %IC reductions needed to achieve the target, but attainment of water quality standards is the ultimate goal. The %IC reductions also serve as a restoration concept for the adaptive implementation of BMPs within the watershed. The statewide TMDLs also cover all waters listed in the future for the same impairment, or the TMDL ‘that keeps on giving’. Questions remain on the value of the statewide versus individual waterbody TMDLs, but Maine believes this approach will shift the focus from TMDL development to watershed management and enable greater emphasis on restoration in the future.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Aquatic Life; Bacteria TMDL; Impairment; Impervious Cover; Statewide TMDL; Urban Streams

Document Type: Research Article

Publication date: 2011-01-01

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 These proceedings are not peer reviewed.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