Non-Compliance
Clean Water Act
MACKINAC ISLAND 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
-
STONECLIFF RD
MACKINAC ISLAND, MI 49757
View on map ↗ - County
- MACKINAC County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Total Penalties
- $0
- Registry ID
- 110009900599
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 | Reporting Violations - Failure to Notify | May 1, 2025 | — | Open |
| cwa | Permit Violations - Discharge Without a Valid Permit | Aug 20, 2022 | — | Open |
| cwa | Reporting Violations - Late Submittal of DMRs | Jun 21, 2021 | — | Open |
| cwa | Reporting Violations - Late Submittal of DMRs | Apr 21, 2021 | — | Open |
| cwa | Schedule Event achieved late but reported | Oct 30, 2020 | — | Open |
| cwa | Reporting Violations - Late Submittal of DMRs | Oct 31, 2019 | — | Open |
| cwa | Permit Violations - Discharge Without a Valid Permit | Aug 27, 2019 | — | Open |
| cwa | Schedule Event unachieved and not reported | Mar 29, 2019 | Jun 28, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2019 | Apr 16, 2019 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 1, 2019 | Apr 16, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2019 | Apr 2, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2019 | Apr 16, 2019 | Resolved |
| cwa | Schedule Event reported late | Jan 1, 2019 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 1, 2019 | — | Open |
| cwa | Schedule Event unachieved but reported | Jan 1, 2019 | Apr 16, 2019 | Resolved |
| cwa | Schedule Event reported late | Jan 1, 2019 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 1, 2019 | — | Open |
| cwa | Reporting Violations - Late Submittal of DMRs | Oct 31, 2018 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Jul 19, 2018 | — | Open |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Jul 1, 2016 | — | Open |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Apr 1, 2016 | — | Open |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Jan 1, 2016 | — | Open |
| cwa | Schedule Event reported late | Oct 30, 2015 | — | Open |
| cwa | Schedule Event unachieved and not reported | Oct 30, 2015 | May 27, 2016 | Resolved |
| cwa | Schedule Event achieved late but reported | Oct 30, 2015 | — | Open |
| cwa | Schedule Event unachieved but reported | Oct 30, 2015 | May 27, 2016 | 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 |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 76.00 mg/L | 30.00 | +153% | Feb 2026 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 219.00 MPN/100mL | 200.00 | +10% | Feb 2026 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 155.00 mg/L | 45.00 | +244% | Feb 2026 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 46.00 mg/L | 30.00 | +53% | Feb 2026 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 70.81 % | 85.00 | +95% | Feb 2026 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 18.95 % | 85.00 | +440% | Feb 2026 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.10 mg/L | 1.00 | +110% | Feb 2026 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 83.00 % | 85.00 | +13% | Jan 2026 | Open |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 kg/d | 0.00 | +48% | Nov 2025 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.20 mg/L | 1.00 | +20% | Nov 2025 | Resolved |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +144% | Nov 2025 | Resolved |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.55 mg/L | 0.50 | +10% | Nov 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.80 mg/L | 1.00 | +80% | Oct 2025 | Resolved |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 kg/d | 0.00 | +50% | Oct 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 41.00 mg/L | 30.00 | +37% | Oct 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 271.00 MPN/100mL | 200.00 | +36% | Oct 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 175.70 kg/d | 163.44 | +8% | Oct 2025 | Resolved |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +145% | Oct 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 88.00 mg/L | 45.00 | +96% | Oct 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 277.00 MPN/100mL | 200.00 | +39% | Sep 2025 | Open |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +140% | Sep 2025 | Resolved |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 kg/d | 0.00 | +48% | Sep 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 192.04 kg/d | 163.44 | +18% | Aug 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 168.89 kg/d | 108.96 | +55% | Aug 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 216.00 MPN/100mL | 200.00 | +8% | Aug 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 222.46 kg/d | 163.44 | +36% | Aug 2025 | Open |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 kg/d | 0.00 | +50% | Aug 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 35.00 mg/L | 30.00 | +17% | Aug 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 72.00 mg/L | 45.00 | +60% | Aug 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 69.00 mg/L | 45.00 | +53% | Aug 2025 | Open |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +141% | Aug 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 66.00 mg/L | 30.00 | +120% | Aug 2025 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.80 mg/L | 1.00 | +80% | Aug 2025 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.63 kg/d | 3.63 | +28% | Aug 2025 | Resolved |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 kg/d | 0.00 | +48% | Jul 2025 | Resolved |
| Mercury, total [as Hg] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +141% | Jul 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 296.01 kg/d | 163.44 | +81% | Jul 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 79.00 mg/L | 45.00 | +76% | Jul 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 109.00 mg/L | 45.00 | +142% | Jul 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 78.00 mg/L | 30.00 | +160% | Jul 2025 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.18 kg/d | 3.63 | +15% | Jul 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 211.11 kg/d | 108.96 | +94% | Jul 2025 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.50 mg/L | 1.00 | +50% | Jul 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 290.56 kg/d | 163.44 | +78% | Jul 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 40.00 mg/L | 30.00 | +33% | Jul 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 39.00 mg/L | 30.00 | +30% | Jun 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 72.00 mg/L | 30.00 | +140% | Jun 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 261.05 kg/d | 163.44 | +60% | Jun 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 179.78 kg/d | 108.96 | +65% | Jun 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 223.00 MPN/100mL | 200.00 | +12% | Jun 2025 | 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 MI-N00000247 · Oct 24, 1991
State CWA Non Penalty AO
Clean Water Act
· Case MI-N00000245 · Aug 6, 1991
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