Hc Mud 450 WWTP
16880 1/2 W Lake Houston Pkwy, Humble, TX 77346 · Harris County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 2 MGD
- NPDES permit
- TX0088501
- Effective
- Permit expires
- April 2029
- Population served
- 45,000
- CWNS 2022
Hc Mud 450 WWTP is a publicly owned wastewater treatment works in Humble, Harris County, Texas, serving about 45,000 residents. It discharges under NPDES permit TX0088501 (effective), which expires in April 2029, with 10 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in April 2021.
Treatment technology
One treatment structure or unit process identified at Hc Mud 450 WWTP.
Available with a free Klarifi account
See the full treatment train at Hc Mud 450 WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 10
- Effluent violations
- 10
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 Hc Mud 450 WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $4.4M
- all cases
- Compliance actions
- $2,000M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Apr 2021
Houston, City of
Judicial case · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $4.4M · Compliance actions $2,000M · The case also names 35 other plants, and its amounts cover all of them
EPA's description of the case:
“City of Houston was issued the Consent Decree for both permit effluent violations and Sanitary Sewer Overflows.”
Source: EPA ECHO, civil enforcement case 06-2010-1780.
Full case history with a free Klarifi account
Every action against Hc Mud 450 WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Hc Mud 450 WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Hc Mud 450 WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Texas
Humble · 1 mi away
0.26 MGD
Houston · 2 mi away
—
Houston · 2 mi away
8 MGD
Houston · 2 mi away
1.49 MGD
Crosby · 3 mi away
0.18 MGD
Crosby · 3 mi away
0.6 MGD
Houston · 4 mi away
1.65 MGD
Houston · 5 mi away
0.85 MGD
Hc Mud 450 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 April 10, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms