Harris County Wcid 50 El Lago WWTP
El Lago, TX · Harris County · Publicly Owned Treatment Works
- Average flow
- 0.24 MGD
- Design flow
- 0.54 MGD
- NPDES permit
- TX0027146
- Effective
- Permit expires
- August 2028
- Population served
- 2,616
- CWNS 2022
Harris County Wcid 50 El Lago WWTP is a publicly owned wastewater treatment works in El Lago, Harris County, Texas treating an average of 0.24 million gallons per day against a permitted design capacity of 0.54 MGD, serving about 2,616 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit TX0027146 (effective), which expires in August 2028, with 1 recorded violation 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
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Harris County Wcid 50 El Lago WWTP.
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Nearby wastewater treatment plants in Texas
Seabrook · 2 mi away
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City Of Seabrook · 2 mi away
1.78 MGD
Kemah · 3 mi away
0.69 MGD
Houston · 3 mi away
6.3 MGD
Nassau Bay · 4 mi away
0.74 MGD
Bacliff · 5 mi away
0.32 MGD
League City · 5 mi away
11.35 MGD
La Porte · 5 mi away
4.32 MGD
Harris County Wcid 50 El Lago 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 April 11, 2025.