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Ship Building And Repairing, Pascagoula, Mississippi. NPDES permit MS0003069, in force until Jan 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6 SU | all year | 015 |
| pH | maximum | ≤ 9 SU | all year | 015 |
| Solids, total suspended | quarterly average | report only (mg/L) | all year | 015 |
| Solids, total suspended | quarterly maximum | report only (mg/L) | all year | 015 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | 015 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | 015 |
| pH | minimum | ≥ 6 SU | all year | 039 |
| pH | maximum | ≤ 9 SU | all year | 039 |
| Oil & Grease | quarterly average | report only (mg/L) | all year | 039 |
| Oil & Grease | quarterly maximum | report only (mg/L) | all year | 039 |
| Zinc, total recoverable | quarterly average | report only (mg/L) | all year | 039 |
| Zinc, total recoverable | quarterly maximum | report only (mg/L) | all year | 039 |
| Copper, total recoverable | quarterly average | report only (mg/L) | all year | 039 |
| Copper, total recoverable | quarterly maximum | report only (mg/L) | all year | 039 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | 039 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | 039 |
| Chemical Oxygen Demand [COD] | quarterly average | report only (mg/L) | all year | 039 |
| Chemical Oxygen Demand [COD] | quarterly maximum | report only (mg/L) | all year | 039 |
| pH | minimum | ≥ 6 SU | all year | 060 |
| pH | maximum | ≤ 9 SU | all year | 060 |
| Oil & Grease | quarterly average | report only (mg/L) | all year | 060 |
| Oil & Grease | quarterly maximum | report only (mg/L) | all year | 060 |
| Zinc, total recoverable | quarterly average | report only (mg/L) | all year | 060 |
| Zinc, total recoverable | quarterly maximum | report only (mg/L) | all year | 060 |
| Copper, total recoverable | quarterly average | report only (mg/L) | all year | 060 |
| Copper, total recoverable | quarterly maximum | report only (mg/L) | all year | 060 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | 060 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | 060 |
| Chemical Oxygen Demand [COD] | quarterly average | report only (mg/L) | all year | 060 |
| Chemical Oxygen Demand [COD] | quarterly maximum | report only (mg/L) | all year | 060 |
| pH | minimum | ≥ 6 SU | all year | 061 |
| pH | maximum | ≤ 9 SU | all year | 061 |
| Oil & Grease | quarterly average | report only (mg/L) | all year | 061 |
| Oil & Grease | quarterly maximum | report only (mg/L) | all year | 061 |
| Zinc, total recoverable | quarterly average | report only (mg/L) | all year | 061 |
| Zinc, total recoverable | quarterly maximum | report only (mg/L) | all year | 061 |
| Copper, total recoverable | quarterly average | report only (mg/L) | all year | 061 |
| Copper, total recoverable | quarterly maximum | report only (mg/L) | all year | 061 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | 061 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | 061 |
| Chemical Oxygen Demand [COD] | quarterly average | report only (mg/L) | all year | 061 |
| Chemical Oxygen Demand [COD] | quarterly maximum | report only (mg/L) | all year | 061 |
| Temperature, water deg. fahrenheit | quarterly average | report only (deg F) | all year | 066 |
| Temperature, water deg. fahrenheit | quarterly maximum | ≤ 90 deg F | all year | 066 |
| pH | minimum | ≥ 6 SU | all year | 066 |
| pH | maximum | ≤ 9 SU | all year | 066 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | 066 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | 066 |
| Chlorine, total residual | quarterly average | report only (mg/L) | all year | 066 |
| Chlorine, total residual | quarterly maximum | ≤ .013 mg/L | all year | 066 |
| pH | minimum | ≥ 6 SU | all year | 085 |
| pH | maximum | ≤ 9 SU | all year | 085 |
| Oil & Grease | quarterly average | report only (mg/L) | all year | 085 |
| Oil & Grease | quarterly maximum | report only (mg/L) | all year | 085 |
| Zinc, total recoverable | quarterly average | report only (mg/L) | all year | 085 |
| Zinc, total recoverable | quarterly maximum | report only (mg/L) | all year | 085 |
| Copper, total recoverable | quarterly average | report only (mg/L) | all year | 085 |
| Copper, total recoverable | quarterly maximum | report only (mg/L) | all year | 085 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | 085 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | 085 |
| Chemical Oxygen Demand [COD] | quarterly average | report only (mg/L) | all year | 085 |
| Chemical Oxygen Demand [COD] | quarterly maximum | report only (mg/L) | all year | 085 |
| pH | minimum | ≥ 6 SU | all year | 091 |
| pH | maximum | ≤ 9 SU | all year | 091 |
| Oil & Grease | quarterly average | report only (mg/L) | all year | 091 |
| Oil & Grease | quarterly maximum | report only (mg/L) | all year | 091 |
| Copper, total recoverable | quarterly average | report only (mg/L) | all year | 091 |
| Copper, total recoverable | quarterly maximum | report only (mg/L) | all year | 091 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | 091 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | 091 |
| Chemical Oxygen Demand [COD] | quarterly average | report only (mg/L) | all year | 091 |
| Chemical Oxygen Demand [COD] | quarterly maximum | report only (mg/L) | all year | 091 |
Cited limits by parameter: Mississippi's rules and the federal ones.
Same industry: the 4 Transportation Equipment permits in Mississippi.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MS0003069 · MCP: https://passage-data.com/mcp