Conroe Southwest Regional WWTP
Southwest Plant, 2 1/2 M West, Conroe, TX 77305 · Montgomery County · Publicly Owned Treatment Works
- Average flow
- 10.4 MGD
- Design flow
- 12 MGD
- NPDES permit
- TX0022268
- Effective
- Permit expires
- October 2029
- Population served
- 50,004
- CWNS 2022
Conroe Southwest Regional WWTP is a publicly owned wastewater treatment works in Conroe, Montgomery County, Texas treating an average of 10.4 million gallons per day against a permitted design capacity of 12 MGD, serving about 50,004 residents. It discharges under NPDES permit TX0022268 (effective), which expires in October 2029, with 9 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in May 2021.
Treatment technology
2 treatment structures and unit processes identified at Conroe Southwest Regional WWTP.
Available with a free Klarifi account
See the full treatment train at Conroe Southwest Regional WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 9
- Effluent violations
- 9
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Conroe Southwest Regional WWTP in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $5,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · May 2021
City of Conroe Admin. Order
Administrative order · CWA, NPDES Permit Violations · Unilateral Administrative Order Without Adjudication · Compliance actions $5,000
EPA's description of the case:
“Effluent Violations for e. coli, Total Residual Chlorine, CBOD from the WWTP”
Source: EPA ECHO, civil enforcement case 06-2021-1703.
Full case history with a free Klarifi account
Every action against Conroe Southwest Regional WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Capital improvement projects in Conroe
Conroe's capital improvement plan lists 48 water, sewer and wastewater line items worth $208M starting 2024–2031. The largest budgeted items are shown here.
All water and sewer capital projects in Conroe →
| Project | Budget | Years |
|---|---|---|
| Wastewater Treatment Plant Expansion - Conroe Central | $15,492,000 | 2029–2033 |
| Water Plant - Wedgewod Point | $13,225,000 | 2030–2034 |
| Water Plant #33 - Longmire Road League Line | $11,500,000 | 2024–2025 |
| Water Plant - E. Wally Wilkerson Parkway and FM 1484 | $9,680,000 | 2029–2030 |
| Water Plant #34 - East SH 242 Area | $9,200,000 | 2025–2027 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
12 verified contacts for Conroe Southwest Regional WWTP, with validated emails and direct phone numbers.
Unlock 12 verified contacts (9 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Conroe Southwest Regional WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Texas
Conroe · 2 mi away
0.46 MGD
Montgomery · 3 mi away
0.98 MGD
Conroe · 3 mi away
4.62 MGD
Conroe · 4 mi away
0.76 MGD
Conroe · 5 mi away
0.07 MGD
Conroe · 5 mi away
0.64 MGD
Conroe · 5 mi away
0.84 MGD
The Woodlands · 5 mi away
4.78 MGD
Conroe Southwest Regional 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 27, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms