Dewatering rules on Texas construction sites (2026)
Dewatering discharge needs controls. On discharge days, observe daily and write a report within 24 hours.
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Key takeaways
- Dewatering discharge is prohibited unless managed by appropriate controls.
- On days when dewatering discharges leave the site, personnel observe and evaluate the controls at least once a day.
- Write a report within 24 hours, and sign it as 30 TAC 305.128 requires.
- Show dewatering locations on the SWP3 site map.
What must I do when I dewater?
Put controls in place before you pump, and note in the SWP3 the controls you use when you pump standing water.
On every day that dewatering discharges leave the site, observe and evaluate the controls at least once a day.
What goes in the 24-hour report?
| Item | What to write |
|---|---|
| Date | The day of the dewatering |
| People | Names and titles of the personnel who observed |
| Times | When dewatering started and stopped |
| Rate | The rate in gallons per day |
| Signs of pollution | Any seen |
| Major observations | What you saw about the controls |
Actions you take go in the SWP3. A report that finds no noncompliance certifies compliance.
What does ReadySWPPP do about dewatering?
ReadySWPPP supports plans with dewatering and gives you a daily observation log for the days you pump.
FAQ
Can I pump water off my site?
Only with appropriate controls in place. Uncontrolled dewatering discharge is prohibited.
How soon is the report due?
Within 24 hours.
Does the SWP3 map show dewatering?
Yes. The map shows where pollutant-generating activities happen, including dewatering.
Facts and sources
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