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Electric Services, Ferndale, Washington. NPDES permit WA0031291 expired Jun 30, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 001 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 001 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 001 |
| Arsenic, total [as As] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Arsenic, total [as As] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Beryllium, total [as Be] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Beryllium, total [as Be] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Cadmium, total [as Cd] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Cadmium, total [as Cd] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Chromium, hexavalent [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Chromium, hexavalent [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ .2 mg/L | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ .2 mg/L | all year | 001 |
| Chromium, total [as Cr] | monthly average | ≤ .2 mg/L | all year | 001 |
| Chromium, total [as Cr] | monthly average | ≤ .2 mg/L | all year | 001 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Lead, total [as Pb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Lead, total [as Pb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Thallium, total [as Tl] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Thallium, total [as Tl] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Nickel, total [as Ni] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Nickel, total [as Ni] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Silver, total [as Ag] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Silver, total [as Ag] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 1 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 1 mg/L | all year | 001 |
| Zinc, total [as Zn] | monthly average | ≤ 1 mg/L | all year | 001 |
| Zinc, total [as Zn] | monthly average | ≤ 1 mg/L | all year | 001 |
| Antimony, total [as Sb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Antimony, total [as Sb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Selenium, total [as Se] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Selenium, total [as Se] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Duration | monthly total | ≤ 446 min | all year | 001 |
| Duration | monthly total | ≤ 446 min | all year | 001 |
| Chlorine, total residual | monthly average | ≤ .2 mg/L | all year | 001 |
| Chlorine, total residual | monthly average | ≤ .2 mg/L | all year | 001 |
| pH, maximum | daily maximum | ≤ 9 SU (alert, not enforceable) | all year | 001 |
| pH, maximum | daily maximum | ≤ 9 SU (alert, not enforceable) | all year | 001 |
| pH, minimum | daily minimum | ≥ 6 SU (alert, not enforceable) | all year | 001 |
| pH, minimum | daily minimum | ≥ 6 SU (alert, not enforceable) | all year | 001 |
| Mercury, total [as Hg] | single reading | report only (ng/L) (alert, not enforceable) | all year | 001 |
| Mercury, total [as Hg] | single reading | report only (ng/L) (alert, not enforceable) | all year | 001 |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | 001 |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year | 002 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 002 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 002 |
| Arsenic, total [as As] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Arsenic, total [as As] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Beryllium, total [as Be] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Beryllium, total [as Be] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Cadmium, total [as Cd] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Cadmium, total [as Cd] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Chromium, total [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Chromium, total [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Lead, total [as Pb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Lead, total [as Pb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Thallium, total [as Tl] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Thallium, total [as Tl] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Nickel, total [as Ni] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Nickel, total [as Ni] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Silver, total [as Ag] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Silver, total [as Ag] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Antimony, total [as Sb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Antimony, total [as Sb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Selenium, total [as Se] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Selenium, total [as Se] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Chromium, hexavalent dissolved [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Chromium, hexavalent dissolved [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Mercury, total [as Hg] | single reading | report only (ng/L) (alert, not enforceable) | all year | 002 |
| Mercury, total [as Hg] | single reading | report only (ng/L) (alert, not enforceable) | all year | 002 |
| Total production - mass | monthly average | report only (lb/hr) (alert, not enforceable) | all year | PROD |
| Total production - mass | monthly average | report only (lb/hr) (alert, not enforceable) | all year | PROD |
| Production, total, megawatts | monthly average | report only (MW) (alert, not enforceable) | all year | PROD |
| Production, total, megawatts | monthly average | report only (MW) (alert, not enforceable) | all year | PROD |
Cited limits by parameter: Washington's rules and the federal ones.
Same industry: the 21 Electric Services 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/WA0031291 · MCP: https://passage-data.com/mcp