Non-Compliance
Clean Water Act
CORNERSTONE MHP WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $6,750 in total penalties since records began.
- Address
-
24723 STUEBNER AIRLINE ROAD
TOMBALL, TX 77375
View on map ↗ - County
- HARRIS County
- Inspections
- 1 · last Jul 12, 2021
- Total Penalties
- $6,750 · last Feb 4, 2025
- Registry ID
- 110028273623
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.
5
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
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 |
|---|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.20 mg/L | 6.00 | +13% | Nov 2025 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.80 mg/L | 6.00 | +3% | Sep 2024 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.70 mg/L | 6.00 | +5% | Jul 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.20 mg/L | 3.00 | +307% | Aug 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.79 kg/d | 0.32 | +147% | Aug 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.66 mg/L | 3.00 | +55% | Jun 2023 | Resolved |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.10 mg/L | 6.00 | +32% | Mar 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.25 mg/L | 3.00 | +42% | May 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 16.70 mg/L | 15.00 | +11% | May 2022 | Open |
| E. coli | DMR, Limited - Numeric Violation | 83.90 MPN/100mL | 63.00 | +33% | Dec 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,119.90 MPN/100mL | 200.00 | +460% | Dec 2021 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.60 mg/L | 6.00 | +7% | Jan 2021 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.60 mg/L | 6.00 | +7% | Sep 2018 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 15.00 | +40% | Jun 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.07 mg/L | 3.00 | +136% | Jun 2017 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.10 mg/L | 6.00 | +15% | Mar 2016 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.00 mg/L | 6.00 | +17% | Feb 2016 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 200.00 | +1,110% | Sep 2015 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.53 mg/L | 3.00 | +18% | Feb 2015 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,553.10 MPN/100mL | 197.00 | +688% | 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-2024-0642-MWD-E · Feb 4, 2025
$6,750
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