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Federal facility (Ship Building And Repairing), Baltimore, Maryland. NPDES permit MD0067300, in force until May 31, 2027. Last 12 months: over a limit 7 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| December 2025 | 006 | Copper, total [as Cu], daily maximum | .0272 mg/L | ≤ .013 mg/L | 109% |
| December 2025 | 006 | Zinc, total [as Zn], daily maximum | .122 mg/L | ≤ .12 mg/L | 2% |
| March 2026 | 006 | Copper, total [as Cu], daily maximum | .0205 mg/L | ≤ .013 mg/L | 58% |
| March 2026 | 006 | Zinc, total [as Zn], daily maximum | .233 mg/L | ≤ .12 mg/L | 94% |
| June 2026 | 005 | Copper, total [as Cu], daily maximum | .0413 mg/L | ≤ .013 mg/L | 218% |
| June 2026 | 005 | Zinc, total [as Zn], daily maximum | .123 mg/L | ≤ .12 mg/L | 3% |
| June 2026 | 006 | Copper, total [as Cu], daily maximum | .0156 mg/L | ≤ .013 mg/L | 20% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 003 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| pH | minimum | ≥ 6.5 SU | all year | 005 |
| pH | minimum | ≥ 6.5 SU | all year | 005 |
| pH | daily maximum | ≤ 8.5 SU | all year | 005 |
| pH | daily maximum | ≤ 8.5 SU | all year | 005 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 005 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 005 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 005 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 005 |
| Copper, dissolved [as Cu] | monthly average | report only (mg/L) | all year | 005 |
| Copper, dissolved [as Cu] | monthly average | report only (mg/L) | all year | 005 |
| Copper, dissolved [as Cu] | daily maximum | report only (mg/L) | all year | 005 |
| Copper, dissolved [as Cu] | daily maximum | report only (mg/L) | all year | 005 |
| Copper, total [as Cu] | daily maximum | ≤ .013 mg/L | all year | 005 |
| Copper, total [as Cu] | daily maximum | ≤ .013 mg/L | all year | 005 |
| Lead, total [as Pb] | monthly average | report only (mg/L) | all year | 005 |
| Lead, total [as Pb] | monthly average | report only (mg/L) | all year | 005 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 005 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 005 |
| Zinc, dissolved [as Zn] | monthly average | report only (mg/L) | all year | 005 |
| Zinc, dissolved [as Zn] | monthly average | report only (mg/L) | all year | 005 |
| Zinc, dissolved [as Zn] | daily maximum | report only (mg/L) | all year | 005 |
| Zinc, dissolved [as Zn] | daily maximum | report only (mg/L) | all year | 005 |
| Zinc, total [as Zn] | daily maximum | ≤ .12 mg/L | all year | 005 |
| Zinc, total [as Zn] | daily maximum | ≤ .12 mg/L | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| pH | minimum | ≥ 6.5 SU | all year | 006 |
| pH | minimum | ≥ 6.5 SU | all year | 006 |
| pH | maximum | ≤ 8.5 SU | all year | 006 |
| pH | maximum | ≤ 8.5 SU | all year | 006 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 006 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 006 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 006 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 006 |
| Copper, dissolved [as Cu] | monthly average | report only (mg/L) | all year | 006 |
| Copper, dissolved [as Cu] | monthly average | report only (mg/L) | all year | 006 |
| Copper, dissolved [as Cu] | daily maximum | report only (mg/L) | all year | 006 |
| Copper, dissolved [as Cu] | daily maximum | report only (mg/L) | all year | 006 |
| Copper, total [as Cu] | daily maximum | ≤ .013 mg/L | all year | 006 |
| Copper, total [as Cu] | daily maximum | ≤ .013 mg/L | all year | 006 |
| Lead, total [as Pb] | monthly average | report only (mg/L) | all year | 006 |
| Lead, total [as Pb] | monthly average | report only (mg/L) | all year | 006 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 006 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 006 |
| Zinc, dissolved [as Zn] | monthly average | report only (mg/L) | all year | 006 |
| Zinc, dissolved [as Zn] | monthly average | report only (mg/L) | all year | 006 |
| Zinc, dissolved [as Zn] | daily maximum | report only (mg/L) | all year | 006 |
| Zinc, dissolved [as Zn] | daily maximum | report only (mg/L) | all year | 006 |
| Zinc, total [as Zn] | daily maximum | ≤ .12 mg/L | all year | 006 |
| Zinc, total [as Zn] | daily maximum | ≤ .12 mg/L | all year | 006 |
| Flow | daily maximum | report only (MGD) | all year | 006 |
| Flow | daily maximum | report only (MGD) | all year | 006 |
| Flow | monthly average | report only (MGD) | all year | 006 |
| Flow | monthly average | report only (MGD) | all year | 006 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 008 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
Cited limits by parameter: Maryland's rules and the federal ones.
Same industry: the 3 Transportation Equipment permits in Maryland.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MD0067300 · MCP: https://passage-data.com/mcp