Quail Valley WWTP
Missouri City, TX · Fort Bend County · Publicly Owned Treatment Works
- Average flow
- 2.11 MGD
- Design flow
- 4 MGD
- NPDES permit
- TX0035220
- Effective
- Permit expires
- April 2029
- Population served
- 29,586
- CWNS 2022
Quail Valley WWTP is a publicly owned wastewater treatment works in Missouri City, Fort Bend County, Texas treating an average of 2.11 million gallons per day against a permitted design capacity of 4 MGD, serving about 29,586 residents. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit TX0035220 (effective), which expires in April 2029, with 4 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Quail Valley WWTP.
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Nearby wastewater treatment plants in Texas
Missouri City · 2 mi away
0.32 MGD
Missouri City · 2 mi away
4.13 MGD
Stafford · 2 mi away
5.76 MGD
Missouri City · 2 mi away
0.52 MGD
Sugar Land · 3 mi away
8.37 MGD
Missouri City · 3 mi away
0.78 MGD
Missouri City · 4 mi away
0.14 MGD
Stafford · 4 mi away
1.48 MGD
Quail Valley 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 March 16, 2025.