Non-Compliance
Clean Water Act
DERBY WASTEWATER TREATMENT
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
-
1501 SOUTH HIGHWAY K15
DERBY, KS 67037
View on map ↗ - County
- SEDGWICK County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 3 · last Oct 21, 2025
- Total Penalties
- $0
- Registry ID
- 110002045830
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
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 |
|---|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 19.45 mg/L | 9.10 | +114% | Feb 2026 | Open |
| Phosphorus, Total As P | DMR, Limited - Numeric Violation | 10.16 kg/d | 9.48 | +7% | Feb 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 19.80 mg/L | 12.60 | +57% | Feb 2026 | Open |
| Phosphorus, Total As P | DMR, Limited - Numeric Violation | 9.97 kg/d | 9.48 | +5% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.00 mg/L | 9.10 | +120% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.10 mg/L | 12.60 | +67% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.40 mg/L | 12.60 | +46% | Dec 2025 | Open |
| Phosphorus, Total As P | DMR, Limited - Numeric Violation | 9.68 kg/d | 9.48 | +2% | Dec 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 16.65 mg/L | 9.10 | +83% | Dec 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 27.90 mg/L | 12.60 | +121% | Nov 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 27.25 mg/L | 8.50 | +221% | Nov 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 29.40 mg/L | 8.50 | +246% | Oct 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 6,340.37 MPN/100mL | 4,348.00 | +46% | Oct 2025 | Open |
| Phosphorus, Total As P | DMR, Limited - Numeric Violation | 9.79 kg/d | 9.48 | +3% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.55 mg/L | 5.20 | +372% | Oct 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 6,340.37 MPN/100mL | 262.00 | +2,320% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 30.70 mg/L | 3.40 | +803% | Sep 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 32.10 mg/L | 5.40 | +494% | Sep 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 20,050.00 MPN/100mL | 4,348.00 | +361% | Aug 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 37.10 mg/L | 3.40 | +991% | Aug 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 36.15 mg/L | 2.20 | +1,543% | Aug 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 20,050.00 MPN/100mL | 262.00 | +7,553% | Aug 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 38.90 mg/L | 2.30 | +1,591% | Jul 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 43.50 mg/L | 3.40 | +1,179% | Jul 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 20,050.00 MPN/100mL | 4,348.00 | +361% | Jul 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 20,050.00 MPN/100mL | 262.00 | +7,553% | Jul 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 32.70 mg/L | 20.00 | +64% | Jun 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 20,050.00 MPN/100mL | 262.00 | +7,553% | Jun 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 32.70 mg/L | 30.00 | +9% | Jun 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 20,050.00 MPN/100mL | 4,348.00 | +361% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 30.80 mg/L | 4.00 | +670% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 25.50 mg/L | 2.60 | +881% | Jun 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 37.40 mg/L | 5.50 | +580% | May 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 4,010.00 MPN/100mL | 262.00 | +1,431% | May 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 35.00 mg/L | 3.50 | +900% | May 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.40 mg/L | 12.60 | +14% | Nov 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.90 mg/L | 5.40 | +102% | Sep 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.74 mg/L | 3.40 | +69% | Sep 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.20 mg/L | 3.40 | +259% | Aug 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.32 mg/L | 2.20 | +323% | Aug 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 16.20 mg/L | 3.40 | +376% | Jul 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.76 mg/L | 2.30 | +324% | Jul 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.50 mg/L | 4.00 | +413% | Jun 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.15 mg/L | 2.60 | +598% | Jun 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.12 mg/L | 5.50 | +66% | May 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.02 mg/L | 3.50 | +100% | May 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.22 mg/L | 4.70 | +54% | Apr 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.70 mg/L | 7.60 | +41% | Apr 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.34 mg/L | 7.60 | +10% | Mar 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.79 mg/L | 3.40 | +11% | Aug 2023 | 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 Administrative Order of Consent
Clean Water Act
· Case KS-24-E-046 BOW · Feb 3, 2025
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