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Industrial or other facility, Mattawa, Washington. NPDES permit WA0991029, in force until Aug 31, 2027. Last 12 months: no values over a limit, 2 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Cyanide, weak acid, dissociable | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Cyanide, weak acid, dissociable | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Cyanide, total [as CN] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Cyanide, total [as CN] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Cyanide, free [amenable to chlorination] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Cyanide, free [amenable to chlorination] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Arsenic, total [as As] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Arsenic, total [as As] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Beryllium, total [as Be] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Beryllium, total [as Be] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Cadmium, total [as Cd] | single reading | report only (mg/L) (alert, not enforceable) | all year | ANNU |
| Cadmium, total [as Cd] | single reading | report only (mg/L) (alert, not enforceable) | all year | ANNU |
| Chromium, total [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Chromium, total [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Lead, total [as Pb] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Lead, total [as Pb] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Thallium, total [as Tl] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Thallium, total [as Tl] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Nickel, total [as Ni] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Nickel, total [as Ni] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Silver, total [as Ag] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Silver, total [as Ag] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Antimony, total [as Sb] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Antimony, total [as Sb] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Selenium, total [as Se] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Selenium, total [as Se] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Chromium, hexavalent dissolved [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Chromium, hexavalent dissolved [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Total phenols | single reading | report only (mg/L) (alert, not enforceable) | all year | ANNU |
| Total phenols | single reading | report only (mg/L) (alert, not enforceable) | all year | ANNU |
| Phenolics, total | single reading | report only (mg/L) (alert, not enforceable) | all year | ANNU |
| Phenolics, total | single reading | report only (mg/L) (alert, not enforceable) | all year | ANNU |
| Polychlorinated biphenyls [PCBs] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Polychlorinated biphenyls [PCBs] | single reading | report only (ug/L) (alert, not enforceable) | all year | ANNU |
| Mercury, total [as Hg] | single reading | report only (ng/L) (alert, not enforceable) | all year | ANNU |
| Mercury, total [as Hg] | single reading | report only (ng/L) (alert, not enforceable) | all year | ANNU |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| Temperature, water deg. centigrade | highest 7-day average | report only (deg C) (alert, not enforceable) | all year | EFF |
| pH | maximum | ≤ 8.5 SU | all year | EFF |
| pH | maximum | ≤ 8.5 SU | all year | EFF |
| pH | maximum | ≤ 8.5 SU | all year | EFF |
| pH | minimum | ≥ 6.5 SU | all year | EFF |
| pH | minimum | ≥ 6.5 SU | all year | EFF |
| pH | minimum | ≥ 6.5 SU | all year | EFF |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 5 mg/L | all year | EFF |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 5 mg/L | all year | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | report only (mkcal/day) (alert, not enforceable) | Jun–Oct | EFF |
| Net rate of additionof heat | monthly average | ≤ 3070 mkcal/day | Jun–Oct | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
| Flow | monthly average | report only (MGD) (alert, not enforceable) | all year | EFF |
Cited limits by parameter: Washington's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/WA0991029 · MCP: https://passage-data.com/mcp