Non-Compliance
Clean Water Act
LEONARDTOWN WASTEWATER TREATMENT FACILITY
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
-
22620 VAN WERT LANE
LEONARDTOWN, MD 20650
View on map ↗ - County
- ST. MARY'S County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 22132
- Inspections
- 3 · last Dec 30, 2025
- Total Penalties
- $0 · last Aug 23, 2019
- Registry ID
- 110002055613
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 | Mar 31, 2022 | May 1, 2022 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2022 | May 1, 2022 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2021 | May 1, 2021 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2021 | May 1, 2021 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2020 | May 1, 2020 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2020 | May 1, 2020 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2019 | May 1, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 1, 2018 | Jan 1, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 1, 2018 | Jan 1, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jun 1, 2018 | Jul 2, 2018 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jun 1, 2018 | Jul 2, 2018 | Resolved |
| cwa | Schedule Event unachieved and not reported | Nov 30, 2017 | Dec 31, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2017 | Apr 2, 2017 | 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 |
|---|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.20 mg/L | 4.00 | +5% | Dec 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.18 kg/d | 4.36 | +19% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.00 mg/L | 1.70 | +18% | Sep 2025 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 29.00 MPN/100mL | 14.00 | +107% | Jul 2025 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 86.00 MPN/100mL | 14.00 | +514% | Jun 2025 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 19.00 MPN/100mL | 14.00 | +36% | Apr 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 99.00 % | 85.00 | +93% | Mar 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 98.63 % | 85.00 | +91% | Mar 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.38 kg/d | 12.71 | +92% | Apr 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.50 mg/L | 4.40 | +116% | Apr 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 118.95 kg/d | 59.02 | +102% | Jan 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 64.47 kg/d | 59.02 | +9% | Aug 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.00 mg/L | 2.40 | +67% | May 2021 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 5.10 mg/L | 4.00 | +28% | May 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.17 kg/d | 6.36 | +44% | May 2021 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 12.09 kg/d | 10.28 | +18% | May 2021 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.40 mg/L | 0.30 | +33% | Jul 2019 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.93 kg/d | 0.77 | +20% | Jul 2019 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 16.00 MPN/100mL | 14.00 | +14% | Apr 2019 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.40 mg/L | 0.30 | +33% | Sep 2018 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.89 kg/d | 0.77 | +15% | Sep 2018 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.40 mg/L | 0.30 | +33% | Aug 2018 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.97 kg/d | 0.77 | +25% | Aug 2018 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.40 mg/L | 0.30 | +33% | Jul 2018 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.02 kg/d | 0.77 | +32% | Jul 2018 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.96 kg/d | 0.77 | +24% | Dec 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.94 kg/d | 0.77 | +22% | Nov 2017 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 31.00 MPN/100mL | 14.00 | +121% | Oct 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.89 kg/d | 0.77 | +16% | Oct 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.40 mg/L | 0.30 | +33% | Sep 2017 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 4.90 mg/L | 4.00 | +23% | Sep 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.81 kg/d | 0.77 | +4% | Sep 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.86 kg/d | 0.77 | +11% | Sep 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.40 mg/L | 0.30 | +33% | Aug 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.90 kg/d | 0.77 | +16% | Aug 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.79 kg/d | 0.77 | +3% | Aug 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.50 mg/L | 0.30 | +400% | Jul 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.54 kg/d | 0.77 | +356% | Jul 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.60 kg/d | 0.77 | +236% | Jun 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.30 mg/L | 0.30 | +333% | Jun 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.40 mg/L | 0.30 | +33% | Feb 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.30 mg/L | 0.30 | +333% | Jul 2016 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.41 kg/d | 0.77 | +211% | Jul 2016 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.30 mg/L | 0.30 | +333% | Jun 2016 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.48 kg/d | 0.77 | +220% | Jun 2016 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.00 mg/L | 4.90 | +2% | Nov 2015 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.60 mg/L | 0.30 | +100% | Sep 2015 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.50 mg/L | 0.30 | +67% | Jul 2015 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 85.35 kg/d | 59.02 | +45% | Jul 2015 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.00 mg/L | 0.30 | +233% | Jun 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.
State CWA Penalty AO
Clean Water Act
· Case MD-SP-20-2605 · Aug 23, 2019
$20,900
State CWA Penalty AO
Clean Water Act
· Case MD-SP-18-2479 · Sep 14, 2017
$3,000
State Administrative Order of Consent
Clean Water Act
· Case MD-CO-15-2206 · Apr 24, 2015
State Administrative Order of Consent
Clean Water Act
· Case MD-N00000607 · Apr 15, 2002
$1,000
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