Non-Compliance
Clean Water Act
WILLOWBROOK WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $4,400,000 in total penalties since records began.
- Address
-
7101 WEST GREENS RD
HOUSTON, TX 77207
View on map ↗ - County
- HARRIS County
- Inspections
- 2 · last Jan 17, 2025
- Total Penalties
- $4,400,000 · last Apr 1, 2021
- Registry ID
- 110009773138
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
1
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | Jun 11, 2023 | Jun 30, 2023 | Resolved |
| cwa | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | May 11, 2023 | May 31, 2023 | Resolved |
| cwa | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | Mar 22, 2022 | Mar 31, 2022 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | Dec 23, 2021 | Dec 31, 2021 | Resolved |
| cwa | WW SSO - Discharge to Waters | Feb 18, 2018 | — | Open |
| cwa | WW SSO - Discharge to Waters | Oct 1, 2015 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | May 12, 2015 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Oct 1, 2014 | — | Open |
| cwa | WW SSO - Discharge to Waters | Oct 1, 2014 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Sep 17, 2014 | — | Open |
| cwa | WW SSO - Discharge to Waters | Jan 1, 2003 | — | Open |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 29.00 mg/L | 25.00 | +16% | Nov 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 23.00 mg/L | 7.00 | +229% | Nov 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.00 mg/L | 7.00 | +14% | Sep 2025 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.80 mg/L | 1.00 | +20% | Aug 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.00 mg/L | 7.00 | +43% | Oct 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.00 mg/L | 7.00 | +14% | Sep 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.00 mg/L | 3.00 | +33% | Aug 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.00 mg/L | 7.00 | +43% | Aug 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.00 mg/L | 7.00 | +43% | Dec 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 12.00 mg/L | 25.00 | +99,999% | Oct 2022 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 12.00 mg/L | 25.00 | +99,999% | Aug 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 7.00 | +71% | May 2021 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 8.20 MGD | 8.00 | +3% | Apr 2016 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.90 mg/L | 7.00 | +27% | Sep 2015 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
Judicial
· Case 06-2010-1780 · Apr 1, 2021
$4,400,000
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