Greenwood Ud - WWTP
11702 Tidwell Road, Houston, TX 77044 · Harris County · Publicly Owned Treatment Works
- Average flow
- 1.62 MGD
- Design flow
- 2.25 MGD
- NPDES permit
- TX0020800
- Effective
- Permit expires
- October 2027
- Population served
- 5,961
- CWNS 2022
Greenwood Ud - WWTP is a publicly owned wastewater treatment works in Houston, Harris County, Texas treating an average of 1.62 million gallons per day against a permitted design capacity of 2.25 MGD, serving about 5,961 residents. It discharges under NPDES permit TX0020800 (effective), which expires in October 2027, with 6 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in July 2020.
Treatment technology
One treatment structure or unit process identified at Greenwood Ud - WWTP.
Available with a free Klarifi account
See the full treatment train at Greenwood Ud - WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 6
- Effluent violations
- 6
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 Greenwood Ud - WWTP in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $2,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jul 2020
Greenwood Utility District
Administrative order · CWA, NPDES Permit Violations · Unilateral Administrative Order Without Adjudication · Compliance actions $2,000
EPA's description of the case:
“The order was issued to Greenwood Utility District for effluent permit limit violations. Requires a corrective action plan.”
Source: EPA ECHO, civil enforcement case 06-2020-1731.
Full case history with a free Klarifi account
Every action against Greenwood Ud - WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Capital improvement projects in Houston
Houston's capital improvement plan lists 22 water, sewer and wastewater line items worth $1.3B starting 2025–2025. The largest budgeted items are shown here.
All water and sewer capital projects in Houston →
| Project | Budget | Years |
|---|---|---|
| Wastewater Treatment Plant Improvements | $353,943,200 | 2025–2025 |
| Wastewater Treatment Plant Consolidation | $166,807,000 | 2025–2025 |
| Surface Water Transmission Program | $132,740,144 | 2025–2025 |
| Neighborhood Sewer Rehab Program | $96,000,000 | 2025–2025 |
| Pump Station Program | $87,851,600 | 2025–2025 |
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
Decision-makers at Greenwood Ud - WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Texas
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Houston · 3 mi away
—
Houston · 3 mi away
0.64 MGD
Houston · 3 mi away
13.57 MGD
Houston · 3 mi away
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Houston · 4 mi away
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Houston · 5 mi away
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Greenwood Ud - 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 · Significant industrial user · WWTP · all terms