Non-Compliance
Clean Water Act
COLONIAL HILLS WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $11,500 in total penalties since records began.
- Address
-
14910 SELLERS ROAD
HOUSTON, TX 77060
View on map ↗ - County
- HARRIS County
- Inspections
- 1 · last Dec 22, 2023
- Total Penalties
- $11,500 · last Oct 28, 2025
- Registry ID
- 110009780497
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.
7
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 | Schedule Event reported late | Dec 12, 2025 | — | Open |
| cwa | Schedule Event achieved late but reported | Dec 12, 2025 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Dec 22, 2023 | Jan 9, 2024 | 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 |
|---|---|---|---|---|---|---|
| Chlorine, total residual | DMR, Limited - Numeric Violation | 4.02 mg/L | 4.00 | +1% | Nov 2024 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.91 mg/L | 1.00 | +9% | Oct 2024 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.60 mg/L | 1.00 | +40% | Sep 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 344.80 MPN/100mL | 200.00 | +72% | Dec 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 200.00 | +1,110% | Aug 2023 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 3.78 mg/L | 4.00 | +6% | Aug 2023 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.13 MGD | 0.10 | +27% | May 2023 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 4.31 mg/L | 4.00 | +8% | Oct 2022 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.11 MGD | 0.10 | +11% | Sep 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 200.00 | +1,110% | Jul 2021 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 3.78 mg/L | 4.00 | +6% | Jul 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 18.90 mg/L | 15.00 | +26% | Jan 2020 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.00 MPN/100mL | 200.00 | +1,109% | Dec 2019 | Open |
| E. coli | DMR, Limited - Numeric Violation | 770.10 MPN/100mL | 200.00 | +285% | Sep 2019 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.12 MGD | 0.10 | +18% | Feb 2018 | Open |
| E. coli | DMR, Limited - Numeric Violation | 108.00 MPN/100mL | 63.00 | +71% | Nov 2017 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.11 MGD | 0.10 | +9% | Aug 2017 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.14 MGD | 0.10 | +38% | Mar 2017 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.14 MGD | 0.10 | +38% | Feb 2017 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.15 MGD | 0.10 | +46% | Jan 2017 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.11 MGD | 0.10 | +10% | Aug 2016 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.16 MGD | 0.10 | +60% | Jun 2016 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.12 MGD | 0.10 | +15% | May 2016 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.11 MGD | 0.10 | +14% | Apr 2016 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.13 MGD | 0.10 | +26% | Jan 2016 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.12 MGD | 0.10 | +24% | Dec 2015 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.12 MGD | 0.10 | +16% | Nov 2015 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.12 MGD | 0.10 | +18% | Jul 2015 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.15 MGD | 0.10 | +51% | Jun 2015 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.19 MGD | 0.10 | +92% | May 2015 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.16 MGD | 0.10 | +61% | Apr 2015 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.13 MGD | 0.10 | +31% | Mar 2015 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.18 MGD | 0.10 | +85% | Jan 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.
State CWA Penalty AO
Clean Water Act
· Case TX-2024-0479-MWD-E · Oct 28, 2025
$11,500
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