Capital Improvement Program

MDU Compliance - Stormwater Management

The City of Irving is authorized by the Texas Commission on Environmental Quality to discharge stormwater from its municipal separate storm sewer system (MS4) under the Texas Pollutant Discharge Elimination System (TPDES) permit number WQ0004691000.

The water quality permit is regulated through a Stormwater Management Program (SWMP). The SWMP describes implementation strategies and programs designed to meet the requirements listed in the City of Irving’s TPDES Municipal Stormwater Permit, which regulates the discharge of stormwater from the City’s storm system to surface and ground waters. This program guides the storm drainage system operations of the City through the end of this TPDES permit term (2024). The permit requires the city to prepare and implement a Stormwater Management Program that consists of addressing eight Minimum Control Measures (MCM’s) for stormwater runoff throughout the city:

MS4 Maintenance Activities
Post-Construction Stormwater Control Measures
Illicit Discharge Detection and Elimination
Pollution Prevention and Good Housekeeping for Municipal Operations
Industrial & High-Risk Runoff
Construction Site Stormwater Runoff
Public Education and Outreach/Public Involvement and Participation
Monitoring, Evaluating and Reporting

Data from these activities are collected, organized, and submitted to the TCEQ on a annual basis to describe the efforts, activities, and results of these programs under the SWMP. Annual reports from the current permit can be found here. XXXXXXX