Non-Compliance
Clean Water Act
STEEP BANK/FLAT BANK WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
2300' SE INTX OILFIELD RD &
MISSOURI CITY, TX 77459
View on map ↗ - County
- FORT BEND County
- Inspections
- 1 · last Sep 15, 2022
- Total Penalties
- $0 · last Mar 19, 2011
- Registry ID
- 110039693640
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.
11
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 | Sep 26, 2025 | Oct 27, 2025 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | May 30, 2025 | May 30, 2025 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Sep 15, 2022 | Sep 15, 2022 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Oct 15, 2015 | — | 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 | 399.00 | +507% | Jan 2026 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Dec 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Nov 2025 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 5.30 mg/L | 5.00 | +6% | Nov 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,120.00 MPN/100mL | 399.00 | +181% | Oct 2025 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 5.60 mg/L | 5.00 | +12% | Oct 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Sep 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Aug 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 4,840.00 MPN/100mL | 399.00 | +1,113% | Jul 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 256.00 MPN/100mL | 126.00 | +103% | Jul 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.07 mg/L | 10.00 | +11% | Jun 2025 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 6.10 mg/L | 5.00 | +22% | Jun 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 615.00 MPN/100mL | 126.00 | +388% | Jun 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 13.40 mg/L | 12.00 | +12% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.56 mg/L | 2.00 | +228% | Jun 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 55.40 mg/L | 40.00 | +39% | Jun 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 693.00 MPN/100mL | 126.00 | +450% | May 2025 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 6.90 mg/L | 5.00 | +38% | May 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 4,840.00 MPN/100mL | 399.00 | +1,113% | May 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.55 mg/L | 2.00 | +128% | Apr 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 48.41 kg/d | 34.05 | +42% | Apr 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.40 mg/L | 10.00 | +44% | Apr 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,394.00 MPN/100mL | 126.00 | +1,006% | Apr 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +99,999% | Apr 2025 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 5.70 mg/L | 5.00 | +14% | Apr 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 74.89 kg/d | 34.05 | +120% | Mar 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 319.00 MPN/100mL | 126.00 | +153% | Mar 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 3,970.00 MPN/100mL | 399.00 | +895% | Mar 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.52 mg/L | 2.00 | +226% | Mar 2025 | Resolved |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 3.09 MGD | 3.00 | +3% | Feb 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.16 mg/L | 3.00 | +5% | Feb 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Feb 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Jan 2025 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 3.10 MGD | 3.00 | +3% | Jan 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 35.42 kg/d | 34.05 | +4% | Jan 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 233.00 MPN/100mL | 126.00 | +85% | Jan 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 68.79 kg/d | 34.05 | +102% | Dec 2024 | Resolved |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 3.10 MGD | 3.00 | +3% | Dec 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.39 mg/L | 3.00 | +80% | Dec 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.50 mg/L | 10.00 | +15% | Dec 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Dec 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,515.33 kg/d | 34.05 | +4,350% | Nov 2024 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 43.00 mg/L | 40.00 | +8% | Nov 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 17.10 mg/L | 15.00 | +14% | Nov 2024 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 3.08 MGD | 3.00 | +3% | Nov 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 10.00 | +110% | Nov 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.03 mg/L | 3.00 | +368% | Nov 2024 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 225.14 kg/d | 170.25 | +32% | Nov 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Nov 2024 | 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.
Administrative - Formal
· Case 06-2025-1778 · Aug 19, 2025
State CWA Penalty AO
Clean Water Act
· Case TX-2010-0659-MWD-E · Mar 19, 2011
$54,000
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