NPDES permit OR0031127 · Minor NON-POTW · effective, expires 2030-05-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31. Most often over: Cyanide, total [as CN] (6).
Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| 001 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| 001 | Temperature, water deg. centigrade | MX 7D AV | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 20 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 40 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 31 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 60 mg/L | all year |
| 001 | Oil & Grease | MO AVG | <= 26 mg/L | all year |
| 001 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 10 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | VALUE | report only | all year |
| 001 | Cyanide, free [as free] | VALUE | report only | all year |
| 001 | Cyanide, total [as CN] | MO AVG | <= .005 mg/L | all year |
| 001 | Cyanide, total [as CN] | DAILY MX | <= .005 mg/L | all year |
| 001 | Cyanide, total [as CN] | VALUE | report only | all year |
| 001 | Cadmium, dissolved [as Cd] | VALUE | report only | all year |
| 001 | Cadmium, total [as Cd] | VALUE | report only | all year |
| 001 | Chromium, dissolved [as Cr] | VALUE | report only | all year |
| 001 | Chromium, total [as Cr] | MO AVG | <= .22 mg/L | all year |
| 001 | Chromium, total [as Cr] | DAILY MX | <= .46 mg/L | all year |
| 001 | Chromium, total [as Cr] | VALUE | report only | all year |
| 001 | Copper, dissolved [as Cu] | VALUE | report only | all year |
| 001 | Copper, total [as Cu] | VALUE | report only | all year |
| 001 | Lead, dissolved [as Pb] | VALUE | report only | all year |
| 001 | Lead, total [as Pb] | VALUE | report only | all year |
| 001 | Nickel, dissolved [as Ni] | VALUE | report only | all year |
| 001 | Nickel, total [as Ni] | VALUE | report only | all year |
| 001 | Nickel, total recoverable | MO AVG | <= .5 mg/L | all year |
| 001 | Nickel, total recoverable | DAILY MX | <= 1 mg/L | all year |
| 001 | Silver, dissolved [as Ag] | VALUE | report only | all year |
| 001 | Silver, total [as Ag] | VALUE | report only | all year |
| 001 | Silver total recoverable | MO AVG | <= .005 mg/L | all year |
| 001 | Silver total recoverable | DAILY MX | <= .011 mg/L | all year |
| 001 | Zinc, dissolved [as Zn] | VALUE | report only | all year |
| 001 | Zinc, total [as Zn] | VALUE | report only | all year |
| 001 | Zinc, total recoverable | MO AVG | <= .62 mg/L | all year |
| 001 | Zinc, total recoverable | DAILY MX | <= 1.24 mg/L | all year |
| 001 | Cadmium, total recoverable | MO AVG | <= .023 mg/L | all year |
| 001 | Cadmium, total recoverable | DAILY MX | <= .039 mg/L | all year |
| 001 | Lead, total recoverable | MO AVG | <= .027 mg/L | all year |
| 001 | Lead, total recoverable | DAILY MX | <= .055 mg/L | all year |
| 001 | Copper, total recoverable | MO AVG | <= .13 mg/L | all year |
| 001 | Copper, total recoverable | DAILY MX | <= .22 mg/L | all year |
| 001 | Tetrachloroethylene | VALUE | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Excess thermal load | MX 7D AV | <= 1.034 mkcal/day | May, Jun, Jul, Aug, Sep, Oct |
| 001 | pH, maximum | DAILY MX | <= 9 SU (alert) | all year |
| 001 | pH, minimum | DAILY MN | >= 6.5 SU | all year |
| 001 | Total toxic organics [TTO] [40 CFR469] | QB | <= 2.13 mg/L | all year |
| 001 | pH range excursions, > 60 minutes | TOTAL | <= 0 occur/mo | all year |
| 001 | pH range excursions, monthly total accum | TOTAL | <= 446 min | all year |
| 001 | Report due [yrmoda] | VALUE | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states