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Abrasive Products, Washington, Oregon. NPDES permit OR0040339 expired Aug 31, 2017; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Temperature, water deg. centigrade | daily maximum | ≤ 21.9 deg C | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Temperature, water deg. centigrade | highest 7-day average | ≤ 18.2 deg C | Jun–Sep |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year |
| Flow rate | monthly average | report only (cfs) | all year |
| Flow rate | daily maximum | report only (cfs) | all year |
| Flow rate | monthly average | report only (cfs) | all year |
| Flow rate | daily maximum | report only (cfs) | all year |
| pH | daily minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 8.5 SU | all year |
| pH | daily minimum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| Alkalinity, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | value | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | value | report only (mg/L) | all year |
| Zinc, total [as Zn] | monthly average | ≤ 37 ug/L | Jun–Sep |
| Zinc, total [as Zn] | daily maximum | ≤ 40 ug/L | Jun–Sep |
| Zinc, total [as Zn] | monthly average | ≤ 37 ug/L | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Zinc, total [as Zn] | daily maximum | ≤ 40 ug/L | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Zinc, total [as Zn] | value | report only (ug/L) | all year |
| Aluminum, total recoverable | monthly average | ≤ 87 ug/L | Jun–Sep |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Jun–Sep |
| Aluminum, total recoverable | monthly average | ≤ 87 ug/L | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Aluminum, total recoverable | value | report only (ug/L) | all year |
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/OR0040339 · MCP: https://passage-data.com/mcp