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The Storm Water Management Program (SWMP) is a comprehensive program to manage the quality of discharges from the municipal separate storm sewer system (MS4). TxDOT uses a statewide SWMP to maintain compliance with TCEQ permit WQ0005011000.

The Texas Commission on Environmental Quality requires that the SWMP must contain a specified number of minimum control measures (MCMs). In order to meet each required minimum control measure, TxDOT utilizes best management practices.

Title Date Description Format
TxDOT Stormwater Management Program 02/18 Describes TxDOT’s MS4 program and TxDOT’s obligations to meet permit requirements in TCEQ permit WQ0005011000

Required Minimum Control Measures

MCM No. MCM Name
1 Public education, outreach and involvement
2 Illicit discharge detection and elimination
3 Construction site storm water runoff control
4 Post-construction storm water management in areas of new development and redevelopment
5 Pollution prevention and good housekeeping for municipal operations

Best Management Practices

As referenced above, TxDOT uses best management practices (BMPs) to ensure that each minimum control measure is met and the storm water management program is successful.

Examples of BMPs include:

  • Public education and outreach to prevent litter
  • Installation of structural controls
  • Maintenance procedures to prevent or reduce the discharge of pollutants
  • Operating procedures
  • Treatment requirements
  • Practices to control facility site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage areas

TxDOT utilizes various BMPs applicable to each MCM as displayed below. MCMs coordinate to the table above. The BMP Examples below indicate one of many BMPs TxDOT utilizes. The Implementation column describes how the BMP is implemented to meet each of the respective MCMs. Where additional information is available about a BMP or an implementation plan, it is linked in the table below.

MCM BMP Example Implementation
MS4 Maintenance Activities Structural  Control Maintenance Inspect structural controls to determine the need for maintenance, repair, or replacement and schedule follow-up actions as necessary.
Illicit Discharge Detection and Elimination Update Storm Sewer Outfall Map Map and screen all outfalls in MS4 areas.
Pollution Prevention and Good Housekeeping Waste Handling Ensure proper disposal of litter and debris removed from roadways by litter collection and/or street sweeping.

Ensure proper disposal of spoil materials removed during maintenance of drainage ditches and structural controls.
Construction Site and Storm Water Runoff Compliance with the CGP Develop and implement plan to ensure compliance, and require contractors to comply with the CGP.
Public Education, Outreach and Involvement Don't Mess with Texas Programs Continue Don't Mess with Texas programs, including Adopt-a-Highway and the Texas Trash-Off.
Monitoring and Screening Programs Dry Weather Screening
Utilize Advanced Outfall Tracking System (AOTS).

Perform monitoring event and participate in Regional Surfacewater Monitoring Program.

Public Involvement

TxDOT invites the public to ask questions about the Storm Water Management Program. Contact us with questions or to request additional information. Information is also available on how you and your family can help prevent storm water pollution.

More Information

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