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Ship Building And Repairing, Seattle, Washington. NPDES permit WA0031046 expired Jun 30, 2025; its limits still apply. Last 12 months: over a limit once (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | Zinc, total [as Zn], daily maximum | 450 | ≤ 332 ug/L | 36% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Turbidity | daily maximum | ≤ 25 NTU | all year |
| Turbidity | daily maximum | ≤ 25 NTU | all year |
| pH | daily minimum | ≥ 5 SU | all year |
| pH | daily minimum | ≥ 5 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Copper, total [as Cu] | daily maximum | ≤ 62 ug/L | all year |
| Copper, total [as Cu] | daily maximum | ≤ 62 ug/L | all year |
| Zinc, total [as Zn] | daily maximum | ≤ 332 ug/L | all year |
| Zinc, total [as Zn] | daily maximum | ≤ 332 ug/L | all year |
| Oil and grease visual | daily maximum | ≤ 0 N=0;Y=1 | all year |
| Oil and grease visual | daily maximum | ≤ 0 N=0;Y=1 | all year |
Cited limits by parameter: Washington's rules and the federal ones.
Same industry: the 13 Transportation Equipment permits in Washington.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/WA0031046 · MCP: https://passage-data.com/mcp