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Ship Building And Repairing, Portland, Oregon. NPDES permit OR0022942 expired Dec 31, 2014; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ 2.6 mg/L | all year | 001 |
| Lead, total recoverable | daily maximum | ≤ .079 mg/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ .34 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 1 MGD | all year | 001 |
| Excess thermal load | daily maximum | ≤ 17 mkcal/day | all year | 001 |
| Solids, total dissolved | value | report only (mg/L) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 10 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 002 |
| Iron, total recoverable | value | report only (mg/L) | all year | 002 |
| Zinc, total recoverable | daily maximum | ≤ 1 mg/L | all year | 002 |
| Lead, total recoverable | daily maximum | ≤ .079 mg/L | all year | 002 |
| Copper, total recoverable | daily maximum | ≤ .087 mg/L | all year | 002 |
| Tributyltin | daily maximum | ≤ .02 mg/L | all year | 002 |
| Manganese, total recoverable | value | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | value | report only (MGD) | all year | 002 |
| Excess thermal load | daily maximum | ≤ 14 mkcal/day | all year | 002 |
| Temperature, water deg. centigrade | value | report only (deg C) | all year | 005 |
| Flow, in conduit or thru treatment plant | value | report only (MGD) | all year | 005 |
| Excess thermal load | daily maximum | ≤ 66 mkcal/day | all year | 005 |
| Temperature, water deg. centigrade | value | report only (deg C) | all year | 006 |
| Flow, in conduit or thru treatment plant | value | report only (MGD) | all year | 006 |
| Excess thermal load | daily maximum | ≤ 66 mkcal/day | all year | 006 |
| Temperature, water deg. centigrade | value | report only (deg C) | all year | 007 |
| Flow, in conduit or thru treatment plant | value | report only (MGD) | all year | 007 |
| Excess thermal load | daily maximum | ≤ 66 mkcal/day | all year | 007 |
| Temperature, water deg. centigrade | value | report only (deg C) | all year | 008 |
| Flow, in conduit or thru treatment plant | value | report only (MGD) | all year | 008 |
| Excess thermal load | daily maximum | ≤ 66 mkcal/day | all year | 008 |
| Temperature, water deg. centigrade | value | report only (deg C) | all year | 009 |
| Flow, in conduit or thru treatment plant | value | report only (MGD) | all year | 009 |
| Excess thermal load | daily maximum | ≤ 66 mkcal/day | all year | 009 |
| Temperature, water deg. centigrade | value | report only (deg C) | all year | 010 |
| Flow, in conduit or thru treatment plant | value | report only (MGD) | all year | 010 |
| Excess thermal load | daily maximum | ≤ 66 mkcal/day | all year | 010 |
Cited limits by parameter: Oregon's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/OR0022942 · MCP: https://passage-data.com/mcp