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Commercial Physical Research, Portland, Oregon. NPDES permit OR0044733, in force until Oct 31, 2028. Last 12 months: no values over a limit, 1 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | report only (mg/L) | all year |
| pH | daily minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 8.5 SU | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Chlorine, total residual | monthly average | ≤ .05 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .05 mg/L | all year |
| Volume, total | daily maximum | report only (gal) | all year |
| Volume, total | daily maximum | report only (gal) | all year |
| Volume, total | daily maximum | report only (gal) | all year |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year |
| Report due [yrmoda] | value | report only (N=0;Y=1) | all year |
Cited limits by parameter: Oregon's rules and the federal ones.
Same industry: the 3 Engineering, Accounting, Research and Management Services permits in Oregon.
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Your permit document is the final word. As JSON: /api/v1/permits/OR0044733 · MCP: https://passage-data.com/mcp