Harris Co Mud 525 WWTP
Crosby, TX · Harris County · Publicly Owned Treatment Works
- Average flow
- 0.08 MGD
- Design flow
- 390 MGD
- NPDES permit
- TX0136816
- Administratively continued
- Permit expires
- May 2025
- Population served
- —
- CWNS 2022
Harris Co Mud 525 WWTP is a publicly owned wastewater treatment works in Crosby, Harris County, Texas treating an average of 0.08 million gallons per day against a permitted design capacity of 390 MGD. Treatment on site includes clarifiers. It discharges under NPDES permit TX0136816 (administratively continued), which expires in May 2025, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Harris Co Mud 525 WWTP.
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Nearby wastewater treatment plants in Texas
Crosby · 1 mi away
0.24 MGD
Humble · 3 mi away
0.23 MGD
Humble · 3 mi away
—
Crosby · 4 mi away
—
Crosby · 5 mi away
2.06 MGD
Houston · 5 mi away
—
Houston · 5 mi away
6.38 MGD
Houston · 5 mi away
1.45 MGD
Harris Co Mud 525 WWTP: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated September 5, 2025.