Non-Compliance
Clean Water Act
PATUXENT MHC, LLC
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $280,000 in total penalties since records began.
- Address
-
5400 SANDS ROAD
LOTHIAN, MD 20711
View on map ↗ - County
- ANNE ARUNDEL County
- Inspections
- 5 · last Dec 8, 2025
- Total Penalties
- $280,000 · last Aug 28, 2024
- Registry ID
- 110009048306
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.
9
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 | Monitoring Violations - No Flow Measurement Device | Jun 30, 2012 | — | Open |
| cwa | Monitoring Violations - No Flow Measurement Device | Jan 27, 2011 | — | 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 |
|---|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 63.00 mg/L | 30.00 | +110% | Jan 2026 | Open |
| E. coli | DMR, Limited - Numeric Violation | 290.00 MPN/100mL | 126.00 | +130% | Jan 2026 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 41.00 mg/L | 30.00 | +37% | Jan 2026 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.30 mg/L | 5.00 | +14% | Dec 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 676.00 MPN/100mL | 126.00 | +437% | Aug 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 60.00 mg/L | 45.00 | +33% | Aug 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 35.00 mg/L | 30.00 | +17% | Aug 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 128.00 MPN/100mL | 126.00 | +2% | Jun 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 68.00 mg/L | 45.00 | +51% | Jun 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 31.00 mg/L | 30.00 | +3% | Jun 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 154.00 MPN/100mL | 126.00 | +22% | May 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 280.00 mg/L | 45.00 | +522% | May 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 12.26 kg/d | 5.90 | +108% | May 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 89.00 mg/L | 30.00 | +197% | May 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 139.00 MPN/100mL | 126.00 | +10% | Apr 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,066.00 MPN/100mL | 126.00 | +746% | Mar 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 674.00 MPN/100mL | 126.00 | +435% | Feb 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 50.00 mg/L | 30.00 | +67% | Feb 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 110.00 mg/L | 45.00 | +144% | Feb 2025 | Resolved |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.10 mg/L | 5.00 | +18% | Jan 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 48.00 mg/L | 45.00 | +7% | Jan 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 166.00 MPN/100mL | 126.00 | +32% | Nov 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 136.00 MPN/100mL | 126.00 | +8% | Jul 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 57.00 mg/L | 45.00 | +27% | Jul 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 70.70 mg/L | 45.00 | +57% | Dec 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 182.70 MPN/100mL | 126.00 | +45% | Oct 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 234.54 MPN/100mL | 126.00 | +86% | Jul 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 667.03 MPN/100mL | 126.00 | +429% | Jun 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 55.00 mg/L | 45.00 | +22% | May 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 189.16 MPN/100mL | 126.00 | +50% | May 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 211.08 MPN/100mL | 126.00 | +68% | Apr 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 175.99 MPN/100mL | 126.00 | +40% | Mar 2022 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 2.65 mg/L | 5.00 | +47% | Nov 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 19.53 kg/d | 5.90 | +231% | Nov 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 769.71 MPN/100mL | 126.00 | +511% | Nov 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 363.00 mg/L | 45.00 | +707% | Nov 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 71.60 mg/L | 45.00 | +59% | Nov 2021 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 82.60 mg/L | 30.00 | +175% | Nov 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 4.47 kg/d | 4.00 | +12% | Nov 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 454.09 MPN/100mL | 126.00 | +260% | Sep 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 370.88 MPN/100mL | 126.00 | +194% | Aug 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 535.18 MPN/100mL | 126.00 | +325% | Jul 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 53.00 mg/L | 45.00 | +18% | Jun 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 123.00 mg/L | 45.00 | +173% | Jun 2021 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 132.30 MPN/100mL | 126.00 | +5% | Nov 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 44.08 mg/L | 30.00 | +47% | Aug 2020 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 574.53 MPN/100mL | 126.00 | +356% | Aug 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 78.00 mg/L | 45.00 | +73% | Aug 2020 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 200.50 MPN/100mL | 126.00 | +99,999% | May 2020 | Open |
| Solids, total suspended | DMR, Limited - Overdue | 155.00 mg/L | 45.00 | +244% | Apr 2020 | Resolved |
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 03-2024-0013 · Aug 28, 2024
$280,000
Administrative - Formal
· Case 03-2024-0009 · Dec 7, 2023
State CWA Penalty AO
Clean Water Act
· Case MD-PS-11-1355 · May 6, 2011
$4,000
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