Non-Compliance
Clean Water Act
MILL CREEK WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $3,000 in total penalties since records began.
- Address
-
0.25 MI W OF INTERX OF NAVAJO RD
CITY OF TOMBALL, TX 77354
View on map ↗ - County
- MONTGOMERY County
- Inspections
- 1 · last Nov 2, 2023
- Total Penalties
- $3,000 · last Aug 1, 2023
- Registry ID
- 110070551719
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 unachieved and not reported | Jul 10, 2024 | Oct 30, 2024 | Resolved |
| cwa | Schedule Event reported late | Jul 10, 2024 | — | Open |
| cwa | Schedule Event achieved late but reported | Jul 10, 2024 | — | Open |
| cwa | Schedule Event unachieved but reported | Jul 10, 2024 | Oct 30, 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 |
|---|---|---|---|---|---|---|
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.16 mg/L | 1.00 | +16% | Jan 2026 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.80 mg/L | 1.00 | +80% | Dec 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.24 mg/L | 1.00 | +24% | Nov 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 156.00 MPN/100mL | 63.00 | +148% | Sep 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 200.00 | +1,110% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.04 kg/d | 1.41 | +45% | Nov 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.20 mg/L | 3.00 | +7% | Jul 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.08 mg/L | 1.00 | +108% | Jun 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.85 kg/d | 1.41 | +742% | May 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.80 mg/L | 3.00 | +260% | May 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 27.50 mg/L | 15.00 | +83% | May 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.69 mg/L | 1.00 | +169% | May 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 11.90 mg/L | 6.00 | +98% | May 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.49 kg/d | 0.45 | +889% | May 2024 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 199.00 MPN/100mL | 63.00 | +216% | May 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.64 mg/L | 1.00 | +164% | Apr 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.79 kg/d | 0.45 | +74% | Apr 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 6.24 mg/L | 6.00 | +4% | Apr 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.22 mg/L | 1.00 | +22% | Mar 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.80 mg/L | 15.00 | +39% | Apr 2023 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.49 kg/d | 0.45 | +228% | Apr 2023 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.55 mg/L | 1.00 | +155% | Apr 2023 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.01 mg/L | 1.00 | +1% | Jan 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.71 kg/d | 0.73 | +272% | Oct 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.20 mg/L | 15.00 | +21% | Oct 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.66 mg/L | 1.00 | +66% | Dec 2021 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.08 mg/L | 1.00 | +8% | Sep 2021 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.62 mg/L | 1.00 | +262% | Aug 2021 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 7.53 mg/L | 6.00 | +26% | Aug 2021 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.19 mg/L | 1.00 | +319% | Jul 2021 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 10.80 mg/L | 6.00 | +80% | Jun 2021 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 8.00 mg/L | 1.00 | +700% | Jun 2021 | Resolved |
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-2022-0068-MWD-E · Aug 1, 2023
$3,000
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