Non-Compliance
Clean Air Act
Clean Water Act
RCRA
PATAPSCO WASTEWATER TREATMENT FACILITY
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $191,100 in total penalties since records began.
- Address
-
3501 ASIATIC AVENUE
BALTIMORE, MD 21226
View on map ↗ - County
- BALTIMORE CITY County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 49 · last Mar 17, 2026
- Total Penalties
- $191,100 · last Aug 7, 2025
- Registry ID
- 110008423704
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.
0
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
12
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
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, 2024 | May 1, 2024 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2024 | May 1, 2024 | Resolved |
| cwa | Schedule Event reported late | Mar 31, 2023 | — | Open |
| cwa | Schedule Event reported late | Mar 31, 2023 | — | Open |
| 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 | Dec 31, 2021 | Jan 31, 2022 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2020 | Jan 31, 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 | Dec 31, 2019 | Jan 31, 2020 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2019 | May 1, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2019 | May 1, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2018 | Jan 31, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2018 | May 1, 2018 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2017 | Jan 31, 2018 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2017 | Jan 31, 2018 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2017 | Jan 31, 2018 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Sep 1, 2017 | Sep 8, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jul 31, 2017 | Aug 31, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jun 30, 2017 | Jul 31, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | May 31, 2017 | Jul 1, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Apr 30, 2017 | May 31, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2017 | May 1, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2016 | Jan 31, 2017 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jun 13, 2011 | Jul 14, 2011 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Jun 13, 2011 | Jul 14, 2011 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Mar 15, 2001 | Mar 15, 2001 | 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 | 46.00 kg/d | 41.33 | +11% | Oct 2025 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 516.96 kg/d | 413.33 | +25% | Oct 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 45.38 kg/d | 41.33 | +10% | Sep 2025 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 487.82 kg/d | 413.33 | +18% | Sep 2025 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 442.18 kg/d | 413.33 | +7% | Aug 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 13,847.00 kg/d | 12,258.00 | +13% | Apr 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 15,436.00 kg/d | 12,258.00 | +26% | Apr 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 244.03 kg/d | 82.71 | +195% | Dec 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 3,056.72 kg/d | 1,102.73 | +177% | Dec 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 241.30 kg/d | 82.71 | +192% | Nov 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 2,964.34 kg/d | 1,102.73 | +169% | Nov 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 78.86 kg/d | 41.33 | +91% | Oct 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 2,863.41 kg/d | 1,102.73 | +160% | Oct 2022 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 1,484.90 kg/d | 413.33 | +259% | Oct 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 238.58 kg/d | 82.71 | +188% | Oct 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 1,413.35 kg/d | 413.33 | +242% | Sep 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 2,791.86 kg/d | 1,102.73 | +153% | Sep 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 75.14 kg/d | 41.33 | +82% | Sep 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 234.86 kg/d | 82.71 | +184% | Sep 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 224.56 kg/d | 82.71 | +172% | Aug 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.50 mg/L | 6.30 | +19% | Aug 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 1,315.27 kg/d | 413.33 | +218% | Aug 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 2,693.78 kg/d | 1,102.73 | +144% | Aug 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 64.85 kg/d | 41.33 | +57% | Aug 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.30 mg/L | 6.30 | +63% | Jul 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,938.58 kg/d | 1,741.54 | +11% | Jul 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 2,486.08 kg/d | 1,102.73 | +125% | Jul 2022 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 1,107.57 kg/d | 413.33 | +168% | Jul 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 53.07 kg/d | 41.33 | +28% | Jul 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 212.78 kg/d | 82.71 | +157% | Jul 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 203.73 kg/d | 82.71 | +146% | Jun 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.50 mg/L | 6.30 | +114% | Jun 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2,683.14 kg/d | 1,741.54 | +54% | Jun 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 2,155.99 kg/d | 1,102.73 | +96% | Jun 2022 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 777.48 kg/d | 413.33 | +88% | Jun 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 44.02 kg/d | 41.33 | +7% | Jun 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 1,805.81 kg/d | 1,102.73 | +64% | May 2022 | Open |
| Enterococci | DMR, Limited - Numeric Violation | 38.20 MPN/100mL | 35.00 | +9% | May 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.20 mg/L | 6.30 | +125% | May 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3,241.56 kg/d | 1,741.54 | +86% | May 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 189.84 kg/d | 82.71 | +130% | May 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 427.30 kg/d | 413.33 | +3% | May 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 1,378.51 kg/d | 1,102.73 | +25% | Apr 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.60 mg/L | 2.00 | +30% | Apr 2022 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 38.00 mg/L | 30.00 | +27% | Apr 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 155.00 mg/L | 45.00 | +244% | Apr 2022 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1,139.54 kg/d | 830.82 | +37% | Apr 2022 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 13,665.40 kg/d | 12,258.00 | +11% | Apr 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 61.00 mg/L | 30.00 | +103% | Apr 2022 | Open |
| Enterococci | DMR, Limited - Numeric Violation | 57.00 MPN/100mL | 35.00 | +63% | Apr 2022 | 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 MD-SP-25-4089 · Aug 7, 2025
$2,750
State Administrative Order of Consent
Clean Water Act
· Case MD-SP-25-4011 · Jan 17, 2025
$1,000
State Administrative Order of Consent
Clean Water Act
· Case MD-SP-25-3067 · Dec 1, 2024
$14,250
State Administrative Order of Consent
Clean Water Act
· Case MD-SP-25-3024 · Nov 1, 2024
$30,750
State Administrative Order of Consent
Clean Water Act
· Case MD-SP-24-3007 · Jul 22, 2024
Administrative - Formal
· Case 03-2023-0124 · Jun 28, 2023
Administrative - Formal
· Case 03-2023-0109 · May 15, 2023
State Administrative Order of Consent
Clean Water Act
· Case MD-SP-22-2779 · Feb 15, 2022
State CWA Penalty AO
Clean Water Act
· Case MD-SP-22-2760 · Jan 7, 2022
$81,600
SITE COMPLAINT
RCRA (Hazardous Waste)
· Case RCRA-MDD052340973-001 · Jun 19, 2018
State CWA Penalty AO
Clean Water Act
· Case MD-COP-16-2405 · Jun 7, 2016
$115,000
State Administrative Order of Consent
Clean Water Act
· Case MD-CO-15-2208 · Jan 28, 2015
$5,000
Administrative - Formal
· Case 03-2010-0123 · Jun 30, 2010
Administrative - Formal
· Case 03-2010-0108 · Apr 14, 2010
$1,950
Administrative - Formal
· Case 03-2006-0074 · Sep 1, 2006
$4,832
Civil Judicial Action
Clean Water Act
· Case 03-2002-N003 · Sep 30, 2002
Judicial
· Case 03-2000-0317 · Sep 30, 2002
$600,000
Judicial
· Case 03-1997-0026 · Nov 17, 1999
$1,000,000
State CWA Non Penalty AO
Clean Water Act
· Case MD-N00000573 · Aug 6, 1993
State CWA Non Penalty AO
Clean Water Act
· Case MD-N00000572 · Aug 6, 1993
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