Non-Compliance
Clean Water Act
ONEIDA WWTF
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
-
ONEIDA INDIAN RESERVATION
ONEIDA, WI 54155
View on map ↗ - County
- BROWN County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 1 · last Aug 5, 2021
- Total Penalties
- $0
- Registry ID
- 110027989611
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.
12
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 | Jan 31, 2026 | Mar 3, 2026 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 31, 2026 | Mar 3, 2026 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2026 | Mar 3, 2026 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2025 | Mar 3, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2025 | Mar 3, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2025 | Mar 3, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2024 | Mar 2, 2024 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2024 | Mar 2, 2024 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2024 | Mar 2, 2024 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 31, 2023 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2023 | Jul 3, 2024 | Resolved |
| cwa | Schedule Event reported late | Jan 31, 2023 | — | Open |
| cwa | Schedule Event unachieved but reported | Jan 31, 2023 | Jul 3, 2024 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 31, 2022 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2022 | Mar 15, 2022 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 31, 2022 | Mar 15, 2022 | Resolved |
| cwa | Schedule Event reported late | Jan 31, 2022 | — | Open |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Jan 14, 2022 | Apr 1, 2025 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Jan 14, 2022 | Apr 1, 2025 | Resolved |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Jan 14, 2022 | Apr 1, 2025 | Resolved |
| cwa | Monitoring Violations - Frequency of Sampling Violation | Jan 14, 2022 | Apr 1, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2021 | Apr 1, 2025 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 31, 2021 | — | Open |
| cwa | Schedule Event unachieved but reported | Jan 31, 2021 | Apr 1, 2021 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2021 | Apr 1, 2025 | Resolved |
| cwa | Schedule Event reported late | Jan 31, 2021 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 2021 | — | Open |
| cwa | Schedule Event unachieved but reported | Jan 31, 2021 | Mar 15, 2022 | Resolved |
| cwa | Schedule Event reported late | Jan 31, 2021 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 2020 | — | Open |
| cwa | Schedule Event reported late | Jan 31, 2020 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2020 | Apr 1, 2025 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 31, 2020 | Mar 15, 2022 | Resolved |
| cwa | Schedule Event reported late | Jan 31, 2019 | — | 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 |
|---|---|---|---|---|---|---|
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.78 mg/L | 0.75 | +4% | Jul 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.63 kg/d | 1.13 | +44% | Jul 2025 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.10 mg/L | 1.00 | +110% | Jul 2025 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.86 kg/d | 1.13 | +64% | May 2025 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.88 mg/L | 0.75 | +17% | May 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.00 mg/L | 1.00 | +100% | May 2025 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.00 mg/L | 1.00 | +100% | Apr 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.00 kg/d | 1.13 | +76% | Apr 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.70 mg/L | 1.00 | +170% | Aug 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.68 kg/d | 1.13 | +48% | Aug 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.28 mg/L | 0.75 | +71% | Aug 2024 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 1.00 mg/L | 6.00 | +83% | Mar 2024 | Open |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +33% | Jun 2022 | Open |
| Mercury, total [as Hg] | DMR, Limited - Overdue | 0.00 mg/L | 0.00 | +33% | Jun 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.90 mg/L | 1.00 | +190% | May 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Overdue | 2.45 kg/d | 1.13 | +116% | May 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.45 kg/d | 1.13 | +116% | May 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Overdue | 2.90 mg/L | 1.00 | +190% | May 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Overdue | 0.91 kg/d | 0.86 | +5% | May 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.91 kg/d | 0.86 | +5% | May 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Overdue | 1.08 mg/L | 0.75 | +44% | May 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.08 mg/L | 0.75 | +44% | May 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.20 mg/L | 1.00 | +20% | Jul 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 720.00 MPN/100mL | 235.00 | +206% | May 2021 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.10 mg/L | 1.00 | +10% | Jul 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 27.69 kg/d | 17.25 | +61% | May 2020 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.23 kg/d | 1.13 | +8% | May 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 18.00 mg/L | 15.00 | +20% | May 2020 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.10 mg/L | 1.00 | +10% | Oct 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.70 mg/L | 9.87 | +29% | Dec 2018 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.00 mg/L | 1.00 | +100% | Dec 2018 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.45 kg/d | 1.13 | +28% | Dec 2018 | Open |
| E. coli | DMR, Limited - Numeric Violation | 544.00 MPN/100mL | 235.00 | +131% | Jun 2018 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,180.00 MPN/100mL | 235.00 | +402% | Aug 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.20 mg/L | 1.00 | +20% | Jun 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.68 kg/d | 1.13 | +312% | May 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.65 kg/d | 0.86 | +323% | May 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 6.70 mg/L | 1.00 | +570% | May 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 5.10 mg/L | 0.75 | +580% | May 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.00 mg/L | 1.00 | +100% | Apr 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.03 kg/d | 1.13 | +79% | Apr 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.19 kg/d | 1.13 | +93% | Dec 2015 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.16 mg/L | 1.00 | +16% | Dec 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.
Administrative - Formal
· Case 05-2023-0302 · Oct 17, 2022
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