Non-Compliance
Clean Water Act
IMPERIAL VALLEY 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
-
15600 ROCK HOUSE RD
HOUSTON, TX 77060
View on map ↗ - County
- HARRIS County
- Inspections
- 3 · last Jan 23, 2026
- Total Penalties
- $4,400,000 · last Apr 1, 2021
- Registry ID
- 110000914306
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.
2
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 | Permit Violations - Violation Specified in Comment | Jan 23, 2026 | Jan 29, 2026 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | Nov 8, 2024 | Nov 30, 2024 | Resolved |
| cwa | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | Jul 15, 2024 | Jul 31, 2024 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | May 11, 2024 | Jun 30, 2024 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Jan 12, 2024 | Feb 13, 2024 | Resolved |
| cwa | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | Nov 5, 2023 | Nov 30, 2023 | Resolved |
| cwa | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | Dec 12, 2022 | Jun 30, 2023 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | Nov 12, 2022 | May 31, 2023 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | Apr 6, 2022 | Jun 30, 2022 | Resolved |
| cwa | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | Mar 22, 2022 | Sep 30, 2022 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Aug 25, 2021 | Aug 25, 2021 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | Jun 18, 2021 | Sep 26, 2021 | Resolved |
| cwa | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | May 20, 2021 | May 20, 2021 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | May 18, 2021 | May 18, 2021 | Resolved |
| cwa | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | Dec 27, 2020 | Jun 30, 2021 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | Dec 1, 2020 | Jun 30, 2021 | Resolved |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Jan 17, 2020 | — | Open |
| cwa | WW SSO - Discharge to Waters | Jan 16, 2020 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Sep 6, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Mar 14, 2018 | — | Open |
| cwa | WW SSO - Discharge to Waters | Feb 14, 2018 | — | Open |
| cwa | Schedule Event achieved late but reported | Nov 30, 2017 | — | Open |
| cwa | WW SSO - Discharge to Waters | Oct 1, 2015 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Dec 19, 2014 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Dec 1, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | Nov 30, 2014 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Oct 22, 2014 | — | Open |
| cwa | WW SSO - Discharge to Waters | Oct 1, 2014 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Oct 1, 2014 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Apr 15, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | Nov 30, 2010 | — | Open |
| cwa | Schedule Event achieved late but reported | Nov 30, 2009 | — | Open |
| cwa | Schedule Event achieved late but reported | Nov 30, 2008 | — | Open |
| cwa | Schedule Event achieved late but reported | Nov 30, 2007 | — | Open |
| cwa | WW SSO - Discharge to Waters | Jan 1, 2003 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 14, 2002 | — | Open |
| cwa | Schedule Event unachieved and not reported | Sep 14, 2002 | Apr 2, 2003 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Feb 29, 2000 | Jan 13, 2003 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Sep 21, 1993 | — | Open |
| cwa | Reporting Violations - Noncompliance with Section 308 Information Request | Sep 5, 1991 | — | Open |
| cwa | Schedule Event achieved late but reported | Nov 15, 1988 | — | Open |
| cwa | Schedule Event achieved late but reported | Oct 20, 1988 | — | Open |
| cwa | Schedule Event achieved late but reported | Jun 13, 1988 | — | Open |
| cwa | Schedule Event unachieved but reported | Jun 13, 1988 | Jan 28, 1991 | Resolved |
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 |
|---|---|---|---|---|---|---|
| E. coli | DMR, Limited - Numeric Violation | 517.00 MPN/100mL | 200.00 | +159% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.00 mg/L | 9.00 | +100% | Jun 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.00 mg/L | 15.00 | +60% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.00 mg/L | 9.00 | +44% | May 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.00 mg/L | 15.00 | +20% | May 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.00 mg/L | 15.00 | +47% | Nov 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 24,200.00 MPN/100mL | 200.00 | +99,999% | Jul 2024 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 113.00 mg/L | 25.00 | +352% | Jul 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 60.00 mg/L | 40.00 | +50% | Jul 2024 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 23.00 mg/L | 10.00 | +130% | Jul 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 50.00 mg/L | 15.00 | +233% | Jul 2024 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 40.00 mg/L | 25.00 | +99,999% | Jul 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.00 mg/L | 9.00 | +22% | Jul 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 37.00 mg/L | 15.00 | +147% | Jul 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 12.00 mg/L | 25.00 | +99,999% | Jun 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 | 11.00 mg/L | 25.00 | +99,999% | Aug 2021 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 11.47 MGD | 9.72 | +18% | Sep 2020 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 11.57 MGD | 9.72 | +19% | Sep 2019 | Open |
| E. coli | DMR, Limited - Numeric Violation | 276.00 MPN/100mL | 200.00 | +38% | Feb 2019 | Open |
| E. coli | DMR, Limited - Numeric Violation | 816.00 MPN/100mL | 200.00 | +308% | Sep 2018 | 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
Administrative - Formal
· Case 06-2002-1873 · Aug 14, 2002
CWA 309A AO For Compliance
Clean Water Act
· Case 06-2002-N318 · Aug 14, 2002
Administrative - Formal
· Case 06-2001-5160 · Jun 18, 2001
CWA 309A AO For Compliance
Clean Water Act
· Case 06-2001-N550 · May 18, 2001
CWA 309A AO For Compliance
Clean Water Act
· Case 06-1992-N525 · Mar 12, 1992
CWA 309A AO For Compliance
Clean Water Act
· Case 06-1989-N332 · Jul 20, 1989
CWA 309A AO For Compliance
Clean Water Act
· Case 06-1988-N321 · Sep 27, 1988
CWA 309A AO For Compliance
Clean Water Act
· Case 06-1988-N307 · Sep 20, 1988
CWA 309A AO For Compliance
Clean Water Act
· Case 06-1988-N366 · May 25, 1988
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