Harris Co. Wcid 21 WWTP
228 Cedar Lane, Channelview, TX 77530 · Harris County · Publicly Owned Treatment Works
- Average flow
- 5.71 MGD
- Design flow
- 2.5 MGD
- NPDES permit
- TX0022756
- Effective
- Permit expires
- October 2028
- Population served
- 9,723
- CWNS 2022
Harris Co. Wcid 21 WWTP is a publicly owned wastewater treatment works in Channelview, Harris County, Texas treating an average of 5.71 million gallons per day against a permitted design capacity of 2.5 MGD, serving about 9,723 residents. It discharges under NPDES permit TX0022756 (effective), which expires in October 2028, with 45 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in March 2024.
Treatment technology
One treatment structure or unit process identified at Harris Co. Wcid 21 WWTP.
Available with a free Klarifi account
See the full treatment train at Harris Co. Wcid 21 WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 45
- Effluent violations
- 21
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 Harris Co. Wcid 21 WWTP in EPA's ICIS system.
- Formal actions
- 2
- 2 since FY2020
- Compliance actions
- $1,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Mar 2024
Harris County WCID 21 WWTP TX0022756
Administrative order · CWA, NPDES Permit Violations · Final Order Issued · Compliance actions $1,000
EPA's description of the case:
“Harris County WCID No. 21 has been issued an Administrative Order following DMR review from TCEQ. Effluent exceedances are Enterococci and Copper.”
Source: EPA ECHO, civil enforcement case 06-2024-1732.
Full case history with a free Klarifi account
Every action against Harris Co. Wcid 21 WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Harris Co. Wcid 21 WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Harris Co. Wcid 21 WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Texas
Channelview · 1 mi away
2.53 MGD
Houston · 3 mi away
0.0077 MGD
Channelview · 3 mi away
—
Houston · 3 mi away
6.48 MGD
Baytown · 4 mi away
6.53 MGD
Baytown · 4 mi away
0.14 MGD
Houston · 4 mi away
0.47 MGD
Deer Park · 5 mi away
6.44 MGD
Harris Co. Wcid 21 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 26, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms