Non-Compliance
Clean Water Act
NW HARRIS COUNTY MUD 9 WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $11,700 in total penalties since records began.
- Address
-
11023 REGENCY GREEN DR
CYPRESS, TX 77429
View on map ↗ - County
- HARRIS County
- Inspections
- 2 · last Dec 19, 2024
- Total Penalties
- $11,700 · last Dec 16, 2025
- Registry ID
- 110002044243
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.
10
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 achieved late but reported | Jan 9, 2026 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Dec 19, 2024 | Dec 23, 2024 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 24, 2023 | — | Open |
| cwa | Schedule Event reported late | Jun 24, 2023 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jun 24, 2015 | — | Open |
| cwa | Schedule Event achieved late but reported | Jul 1, 2012 | — | Open |
| cwa | Schedule Event reported late | Jul 1, 2011 | — | Open |
| cwa | Schedule Event achieved late but reported | Jul 1, 2011 | — | Open |
| cwa | Schedule Event reported late | Apr 1, 2011 | — | Open |
| cwa | Schedule Event unachieved and not reported | Apr 1, 2011 | Jul 27, 2011 | Resolved |
| cwa | Schedule Event achieved late but reported | Apr 1, 2011 | — | Open |
| cwa | Schedule Event unachieved but reported | Apr 1, 2011 | Jul 27, 2011 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 1, 2011 | May 17, 2011 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 1, 2011 | — | Open |
| cwa | Schedule Event reported late | Jan 1, 2011 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2011 | May 20, 2011 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Feb 3, 1994 | — | Open |
| cwa | Effluent Violations - Unapproved Bypass | Jan 31, 1993 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Dec 31, 1992 | — | Open |
| cwa | Effluent Violations - Unapproved Bypass | Feb 17, 1992 | — | Open |
| cwa | Reporting Violations - Noncompliance with Section 308 Information Request | Sep 9, 1991 | — | 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 |
|---|---|---|---|---|---|---|
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 200.00 | +99,999% | Nov 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.32 mg/L | 2.00 | +66% | Jul 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.10 mg/L | 2.00 | +5% | Apr 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.60 mg/L | 7.00 | +109% | Apr 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.20 mg/L | 2.00 | +410% | Mar 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.07 kg/d | 7.26 | +176% | Mar 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.10 mg/L | 7.00 | +73% | Mar 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 16.57 kg/d | 7.26 | +128% | Feb 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.25 mg/L | 2.00 | +313% | Feb 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.80 mg/L | 7.00 | +69% | Feb 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 200.00 | +99,999% | Jul 2024 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.37 mg/L | 6.00 | +27% | Jul 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 171.12 MPN/100mL | 63.00 | +99,999% | Jul 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 248.10 MPN/100mL | 200.00 | +24% | May 2024 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.94 mg/L | 6.00 | +1% | Mar 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 396.80 MPN/100mL | 200.00 | +98% | Mar 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 816.40 MPN/100mL | 200.00 | +308% | Jul 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 261.30 MPN/100mL | 200.00 | +31% | Mar 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 201.40 MPN/100mL | 200.00 | +1% | Jun 2022 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.40 mg/L | 6.00 | +27% | May 2018 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,700.00 MPN/100mL | 200.00 | +750% | Jan 2018 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.10 mg/L | 6.00 | +15% | Nov 2017 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,600.00 MPN/100mL | 200.00 | +700% | Oct 2017 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 7.20 mg/L | 7.00 | +3% | Sep 2017 | 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-2025-1224-MWD-E · Dec 16, 2025
$11,700
Administrative - Formal
· Case 06-2026-1716 · Dec 9, 2025
CWA 309A AO For Compliance
Clean Water Act
· Case 06-1993-N273 · Mar 18, 1993
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