Non-Compliance
Clean Water Act
POTOSI-TENNYSON SEWAGE COMMISSION 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
-
100 PLANT ST
POTOSI, WI 53820
View on map ↗ - County
- GRANT County
- Total Penalties
- $0
- Registry ID
- 110010848084
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 | WW SSO - Discharge to Waters | Jun 15, 2025 | — | Open |
| cwa | WW SSO - Discharge to Waters | Feb 3, 2025 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 1, 2025 | Feb 4, 2025 | Resolved |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Jul 1, 2024 | — | Open |
| cwa | WW SSO - Discharge to Waters | Feb 6, 2024 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Aug 9, 2023 | — | Open |
| cwa | WW SSO - Discharge to Waters | May 18, 2022 | — | Open |
| cwa | WW SSO - Discharge to Waters | Oct 2, 2019 | — | Open |
| cwa | WW SSO - Discharge to Waters | Oct 1, 2019 | — | Open |
| cwa | WW SSO - Discharge to Waters | Jun 26, 2019 | — | Open |
| cwa | WW SSO - Discharge to Waters | Oct 1, 2018 | — | Open |
| cwa | WW SSO - Discharge to Waters | Jul 24, 2018 | — | Open |
| cwa | WW SSO - Discharge to Waters | Jul 21, 2017 | — | Open |
| cwa | Schedule Event unachieved and not reported | Dec 31, 1977 | Dec 29, 1984 | 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 | 3.72 mg/L | 2.80 | +33% | Sep 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 6.17 mg/L | 2.80 | +120% | Jul 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.49 mg/L | 2.80 | +25% | Jun 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 21.62 mg/L | 20.00 | +8% | May 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.19 mg/L | 2.80 | +14% | Apr 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 36.00 mg/L | 30.00 | +20% | Apr 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 45.67 mg/L | 30.00 | +52% | Mar 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.05 mg/L | 2.80 | +9% | Dec 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.28 mg/L | 2.80 | +53% | Oct 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.43 mg/L | 2.80 | +58% | Sep 2024 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 44.33 mg/L | 30.00 | +48% | Jul 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.37 mg/L | 2.80 | +20% | May 2024 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 3.90 mg/L | 4.00 | +3% | May 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 205.67 mg/L | 30.00 | +586% | May 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 48.14 mg/L | 20.00 | +141% | May 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 29.62 mg/L | 20.00 | +48% | Apr 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.10 mg/L | 2.80 | +11% | Apr 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 76.00 mg/L | 30.00 | +153% | Apr 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 11.35 mg/L | 2.80 | +305% | Mar 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.09 mg/L | 2.80 | +10% | Oct 2023 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.48 mg/L | 2.80 | +24% | Sep 2023 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.67 mg/L | 2.80 | +67% | Aug 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 45.00 mg/L | 30.00 | +50% | Nov 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 40.33 mg/L | 30.00 | +34% | Jan 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 40.00 mg/L | 30.00 | +33% | Jul 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 32.00 mg/L | 30.00 | +7% | May 2020 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 71.33 mg/L | 30.00 | +138% | Jun 2019 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 36.77 mg/L | 20.00 | +84% | Jun 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 73.69 mg/L | 20.00 | +268% | Jun 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 131.67 mg/L | 30.00 | +339% | Jun 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 23.42 mg/L | 20.00 | +17% | May 2019 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.75 mg/L | 2.80 | +34% | Apr 2018 | Open |
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