New Items

• TQEQ Public Meeting for Lower West Fork Trinity Bacteria TMDL, July 18, 2012 at 1:00 p.m. at NCTCOG offices (details coming soon)
• New Maps

TMDL Program

In FY 2011, NCTCOG was tasked by the Texas Commission on Environmental Quality (TCEQ) with supporting the development of Total Maximum Daily Load (TMDL) Implementation Plan (I-Plan) in the Dallas–Fort Worth area of north central Texas. The I-Plan will address bacteria levels on a continuous segment of the West Fork of the Trinity River running from the confluence of the Trinity and Village Creek in Arlington to the confluence of the Trinity and Five Mile Creek in southern Dallas. Also included are two tributaries off of the Elm Fork of the Trinity River, Cottonwood Branch and Grapevine Creek.

Central to any I-Plan are public participation and stakeholder involvement and the Environment & Development Department has been hosting a series of meetings with regional stakeholders, interested groups and individuals, and technical experts in order to determine how best to meet the TCEQ goal of reducing bacteria concentrations to within acceptable risk levels for contact recreation.

NCTCOG Meetings

Technical Subcommittee Meetings

Select the subcommittee below for schedule, location, agendas, and meeting summaries.

• Education & Outreach
• Monitoring Coordination
• On-site Sewage Facilities
• Parks & Recreation
• Pets, Livestock & Wildlife
• Planning & Development
• Stormwater
• Wastewater

Coordination Committee

• Meeting schedule, location, agendas, presentations, and summaries

General Stakeholder Meetings

• Meeting schedule, location, agendas, presentations, and summaries

NCTCOG TMDL Maps

• Population concentrations by 2010 US Census blocks for Bacteria TMDL watersheds
• On-site Sewage Facility Map in TMDL Area
• Monitoring Locations in TMDL Area Map
• Sanitary Sewer Overflow Map in TMDL Area
• Land Use Map for DFW Bacteria TMDL Area
• MS4 Map for Bacteria TMDL Area
• Wastewater Treatment Facilities Map
• General TMDL Boundary Map
• Upper Trinity bacteria TMDL (Dallas, river segment 0805)
• Trinity West Fork bacteria TMDL (mid-cities, Fort Worth, Dallas, river segment 0841)
• Cottonwood Branch and Grapevine Creek bacteria TMDL (Irving, Coppell, DFW, tributaries of Elm Fork River segment 0822)
• Map of all three bacteria TMDLs (large file)

TCEQ Links for Trinity River TMDLs

• Lower West Fork Trinity River Bacteria TMDL information page
• Upper Trinity River Bacteria TMDL information page
• Adopted TMDL for Dallas river segments 0805_03 and 0805_04
• Adopted Cottonwood Branch and Grapevine Creek Bacteria TMDLs (segments 0822A & 0822B)
• Trinity River PCB TMDL information page
• General information from TCEQ on TMDLs

Bacteria TMDL I-Plan Examples

• Houston-area Bacteria TMDL Draft Implementation Plan
• Carters Creek Draft Bacteria TMDL Implementation Plan
• Gilleland Creek Bacteria TMDL Implementation Plan
• Guadalupe River Bacteria TMDL Draft Implementation Plan

EPA Links for TMDLs

• EPA TMDL page
• EPA TMDL definitions
• EPA November 2010 memo to States regarding TMDLs and stormwater permits (PDF)

Related NCTCOG and NCTCOG-supported programs

• Cease the Grease
• Doo the Right Thing
• Illicit Discharge Detection & Elimination (IDDE)
• iSWM
• Regional Ecosystem Framework (Greenprinting and Regional Watersheds)
• Regional Storm Water Management Program
• Texas SmartScape

For more information on the Greater Trinity River TMDL Project or on how to become involved, contact Jennifer Vuitel, at 817-695-9223 or jvuitel@nctcog.org.