Non-Compliance
Clean Water Act
THORNTON FARMS SUBDIVISION
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
-
8370 REDWOOD TRAIL
DEXTER, MI 48130
View on map ↗ - County
- WASHTENAW County
- Industry
- Other Services
- NAICS (North American Industry Classification)
- 813990
- Inspections
- 2 · last Sep 17, 2025
- Total Penalties
- $0 · last Feb 28, 2019
- Registry ID
- 110015807894
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 achieved late but reported | Apr 1, 2020 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 31, 2020 | — | Open |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Aug 22, 2019 | — | Open |
| cwa | Permit Violations - Discharge Without a Valid Permit | Aug 22, 2019 | — | Open |
| cwa | Reporting Violations - Late Submittal of DMRs | Jan 21, 2019 | — | Open |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Aug 1, 2016 | — | Open |
| cwa | Reporting Violations - Late Submittal of DMRs | Jul 21, 2016 | — | Open |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Jul 1, 2016 | — | Open |
| cwa | Schedule Event achieved late but reported | Apr 1, 2016 | — | Open |
| cwa | Schedule Event unachieved and not reported | Apr 1, 2016 | Jan 20, 2017 | Resolved |
| cwa | Schedule Event achieved late but reported | Apr 1, 2016 | — | Open |
| cwa | Schedule Event unachieved but reported | Apr 1, 2016 | Jan 20, 2017 | Resolved |
| cwa | Schedule Event unachieved but reported | Apr 1, 2016 | Jan 20, 2017 | Resolved |
| cwa | Schedule Event reported late | Apr 1, 2016 | — | Open |
| cwa | Schedule Event reported late | Apr 1, 2016 | — | Open |
| cwa | Schedule Event unachieved and not reported | Apr 1, 2016 | Jan 20, 2017 | Resolved |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Aug 1, 2015 | — | Open |
| cwa | Schedule Event unachieved but reported | Apr 1, 2015 | Mar 31, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Apr 1, 2015 | Mar 31, 2017 | Resolved |
| cwa | Schedule Event reported late | Apr 1, 2015 | — | Open |
| cwa | Schedule Event achieved late but reported | Apr 1, 2015 | — | Open |
| cwa | Schedule Event reported late | Nov 1, 2014 | — | Open |
| cwa | Schedule Event unachieved but reported | Nov 1, 2014 | Mar 30, 2017 | Resolved |
| cwa | Schedule Event achieved late but reported | Nov 1, 2014 | — | Open |
| cwa | Schedule Event unachieved and not reported | Nov 1, 2014 | Mar 30, 2017 | Resolved |
| cwa | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | Jun 9, 2014 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Sep 10, 2013 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Sep 30, 2012 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Aug 31, 2012 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Jul 31, 2012 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Jun 30, 2012 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | May 31, 2012 | — | 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 |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 204.00 mg/L | 45.00 | +353% | Mar 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.10 mg/L | 2.00 | +5% | Sep 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.04 kg/d | 0.01 | +204% | Aug 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.00 kg/d | 0.00 | +33% | Aug 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.30 mg/L | 0.50 | +160% | Aug 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.70 mg/L | 2.00 | +385% | Aug 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.10 mg/L | 2.00 | +5% | Jun 2021 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 14.00 mg/L | 10.00 | +40% | May 2021 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 14.00 mg/L | 10.00 | +40% | Sep 2020 | Open |
| Solids, total suspended | DMR, Limited - Overdue | 48.00 mg/L | 30.00 | +60% | Sep 2020 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 48.00 mg/L | 30.00 | +60% | Sep 2020 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 1.10 mg/L | 6.00 | +82% | Aug 2020 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.11 mg/L | 0.10 | +5% | Aug 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 32.00 mg/L | 2.00 | +1,500% | Jun 2020 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.10 mg/L | 0.08 | +25% | Sep 2019 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.15 mg/L | 0.10 | +50% | Jun 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.76 mg/L | 2.00 | +38% | May 2019 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.22 mg/L | 0.10 | +120% | Sep 2017 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.34 mg/L | 0.10 | +240% | Aug 2017 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.64 mg/L | 0.50 | +228% | Aug 2017 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 1.71 kg/d | 1.09 | +57% | Aug 2017 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.53 kg/d | 0.27 | +93% | Aug 2017 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.71 kg/d | 1.09 | +57% | Aug 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 962.48 kg/d | 16.34 | +5,789% | Aug 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.11 kg/d | 0.05 | +100% | Aug 2017 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.37 mg/L | 2.00 | +419% | Aug 2017 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,762.00 MPN/100mL | 400.00 | +591% | Jul 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.20 mg/L | 0.10 | +100% | Jul 2017 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 539.00 MPN/100mL | 200.00 | +170% | Jul 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.10 mg/L | 2.00 | +105% | Jul 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.08 kg/d | 0.05 | +50% | Jul 2017 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.84 mg/L | 0.50 | +68% | Jul 2017 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.09 mg/L | 0.50 | +118% | Jun 2017 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.20 mg/L | 2.00 | +210% | Jun 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.40 mg/L | 0.10 | +300% | Jun 2017 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 204.00 mg/L | 30.00 | +580% | Jun 2017 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 22.00 mg/L | 10.00 | +120% | Jun 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 63.11 kg/d | 16.34 | +286% | Jun 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.09 kg/d | 0.05 | +67% | Jun 2017 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 1,441.00 MPN/100mL | 400.00 | +260% | Jun 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.34 kg/d | 0.27 | +23% | Jun 2017 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 257.00 MPN/100mL | 200.00 | +29% | Jun 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 131.00 mg/L | 30.00 | +337% | May 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 37.00 mg/L | 20.00 | +85% | May 2017 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 22.00 mg/L | 10.00 | +120% | May 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.45 mg/L | 2.00 | +273% | May 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.07 kg/d | 0.05 | +25% | May 2017 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.23 mg/L | 0.10 | +130% | May 2017 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 1,045.00 MPN/100mL | 400.00 | +161% | May 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 35.41 kg/d | 16.34 | +117% | May 2017 | 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-77721882451234422 · Feb 28, 2019
$20,000
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