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Monitoring and Reporting Stormwater Discharges from Industrial Facilities

Requirements for monitoring and reporting contaminant levels in stormwater discharges under Multi-Sector General Permit TXR050000.

Use the appropriate discharge monitoring report (DMRs) listed below if you are covered under the Multi-Sector General Permit (TXR050000) and are required to record analytical data for effluent monitoring. Keep these monitoring results on-site with the stormwater pollution prevention plan. Some dischargers will also need to submit their forms, as described below, under “When do DMRs need to be submitted to TCEQ?”

The following reports are in Portable Document Format (PDF). (Help with PDF.)

When do DMRs need to be submitted to TCEQ?

DMRs are to be submitted to TCEQ by March 31 of each year in the following cases:

  1. Any non-compliance with an effluent limit for any of the hazardous metals required in Part III.D.1 of this permit, or for TSS and pH as required in Part III.D.2 of this permit, shall be recorded on a DMR and reported at a frequency of once per year.

  2. All results of sampling for effluent limits in accordance with Part V of the permit (Sector-specific requirements in Sectors A, C, D, E, J, or O) must be submitted to the TCEQ.

Where are the DMRs to be mailed?

TCEQ, Information Resources Division, MC-213
P.O. Box 13087
Austin, TX 78711-3087

What about Benchmark Monitoring?

Not all sectors are required to conduct benchmark monitoring. Those sectors which are required to conduct benchmark monitoring are listed in Part IV Section B of the Multi-Sector Industrial General Permit for Storm Water. For more information, refer to the Benchmark Monitoring Data Analyses webpage.

For more information, refer to General Permit TXR050000Adobe Acrobat PDF Document and look at the Small Business and Local Government Assistance sampling guideAdobe Acrobat PDF Document.

Contact us if you have questions.