4th Permit Term

Regional Stormwater Monitoring Program


Continue the long-term assessment of water quality trends, evaluate urban impacts on receiving streams, and document any improvement to water quality from best management practice implementation.


The North Texas Tollway Authority and the cities of Dallas, Fort Worth, Arlington, Irving, Plano, Garland, and Mesquite.

Sampling Details

 The sampling plan for the fourth permit term will effectively monitor at least 50 percent of each participant’s jurisdictional area by the end of the fourth permit term. Twenty-one sample stations will be monitored for 17 chemical parameters. Each station will be monitored for a minimum of two years. In addition to the chemical sampling, biological monitoring will be conducted in the cities of Dallas, Fort Worth, Irving, Garland, and Plano.

For more sampling details, visit the following links:

Monitoring watersheds maps: 2018 | 2019 | 2020 | 2021

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Interactive station map and data viewer

Monitoring Reports
2018 Annual RWWCP Report

Reports and appendixes are available upon request. Please contact NCTCOG Staff at EandD@nctcog.org.