City Of Willis WWTP
10725 Hwy 75, Willis, TX 77378 · Montgomery County · Publicly Owned Treatment Works
- Average flow
- 0.98 MGD
- Design flow
- 0.99 MGD
- NPDES permit
- TX0068845
- Effective
- Permit expires
- May 2029
- Population served
- 4,653
- CWNS 2022
City Of Willis WWTP is a publicly owned wastewater treatment works in Willis, Montgomery County, Texas treating an average of 0.98 million gallons per day against a permitted design capacity of 0.99 MGD, serving about 4,653 residents. It discharges under NPDES permit TX0068845 (effective), which expires in May 2029, with 2 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at City Of Willis WWTP.
Available with a free Klarifi account
See the full treatment train at City Of Willis WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for City Of Willis WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at City Of Willis WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Texas
Conroe · 2 mi away
0.32 MGD
Conroe · 3 mi away
0.06 MGD
Willis · 3 mi away
0.02 MGD
Willis · 5 mi away
0.22 MGD
Houston · 5 mi away
0.29 MGD
Willis · 5 mi away
0.25 MGD
Conroe · 6 mi away
0.03 MGD
Willis · 7 mi away
0.47 MGD
City Of Willis 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 October 26, 2026; facility record last updated May 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Lift station · Sludge dewatering · all terms