NPDES permit OR0027847 · Minor NON-POTW · effective, expires 2027-11-30 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31.
Reports are due about 15 days after each monitoring period ends (the most common figure among OR permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| FAC | Biomass, fish | TOTAL | <= 115000 lb/yr | all year |
| MF1 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| MF1 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| MF1 | pH | DAILY MN | >= 6.2 SU | all year |
| MF1 | pH | DAILY MX | <= 9 SU | all year |
| MF1 | Alkalinity, total [as CaCO3] | MO MAX | report only | all year |
| MF1 | Solids, total suspended | MO AVG | report only | all year |
| MF1 | Solids, total suspended | DAILY MX | <= 15 mg/L | all year |
| MF1 | Solids, total suspended | MO AVG | report only | all year |
| MF1 | Solids, total suspended | MO AVG | report only | all year |
| MF1 | Solids, settleable | MO AVG | report only | all year |
| MF1 | Solids, settleable | DAILY MX | <= .2 mL/L | all year |
| MF1 | Solids, settleable | VALUE | report only | all year |
| MF1 | Solids, settleable | VALUE | report only | all year |
| MF1 | Nitrogen, ammonia total [as N] | VALUE | report only | all year |
| MF1 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| MF1 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| MF1 | Formaldehyde | VALUE | report only | all year |
| MF2 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| MF2 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| MF2 | pH | DAILY MN | >= 6.4 SU | all year |
| MF2 | pH | DAILY MX | <= 9 SU | all year |
| MF2 | Alkalinity, total [as CaCO3] | MO MAX | report only | all year |
| MF2 | Solids, total suspended | MO AVG | <= 5 mg/L | all year |
| MF2 | Solids, total suspended | DAILY MX | <= 10 mg/L | all year |
| MF2 | Solids, settleable | MO AVG | <= .1 mL/L | all year |
| MF2 | Solids, settleable | MX WK AV | report only | all year |
| MF2 | Nitrogen, ammonia total [as N] | VALUE | report only | all year |
| MF2 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| MF2 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| MF7 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| MF7 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| MF7 | pH | DAILY MN | >= 6 SU | all year |
| MF7 | pH | DAILY MX | <= 9 SU | all year |
| MF7 | Alkalinity, total [as CaCO3] | MO MAX | report only | all year |
| MF7 | Solids, total suspended | MO AVG | <= 5 mg/L | all year |
| MF7 | Solids, total suspended | DAILY MX | <= 10 mg/L | all year |
| MF7 | Solids, settleable | MO AVG | <= .1 mL/L | all year |
| MF7 | Solids, settleable | MX WK AV | report only | all year |
| MF7 | Nitrogen, ammonia total [as N] | VALUE | report only | all year |
| MF7 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| MF7 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| MT1 | Temperature, water deg. centigrade | MO AVG | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| MT1 | Temperature, water deg. centigrade | MO AVG | report only | Jan, Feb, Mar, Nov, Dec |
| MT1 | Temperature, water deg. centigrade | DAILY MX | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| MT1 | Temperature, water deg. centigrade | DAILY MX | report only | Jan, Feb, Mar, Nov, Dec |
| MT1 | Temperature, water deg. centigrade | MX 7D AV | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| MT1 | pH | DAILY MN | >= 6 SU | all year |
| MT1 | pH | DAILY MX | <= 9 SU | all year |
| MT1 | Alkalinity, total [as CaCO3] | MO MAX | report only | all year |
| MT1 | Solids, total suspended | MO AVG | report only | all year |
| MT1 | Solids, total suspended | MO AVG | report only | all year |
| MT1 | Solids, total suspended | DAILY MX | <= 15 mg/L | all year |
| MT1 | Solids, settleable | VALUE | report only | all year |
| MT1 | Solids, settleable | MO AVG | report only | all year |
| MT1 | Solids, settleable | DAILY MX | <= .2 mL/L | all year |
| MT1 | Nitrogen, ammonia total [as N] | VALUE | report only | all year |
| MT1 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| MT1 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| MT1 | Excess thermal load | MX 7D AV | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| MT1 | Formaldehyde | VALUE | report only | all year |
| MT3 | Temperature, water deg. centigrade | MO AVG | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| MT3 | Temperature, water deg. centigrade | MO AVG | report only | Jan, Feb, Mar, Nov, Dec |
| MT3 | Temperature, water deg. centigrade | DAILY MX | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| MT3 | Temperature, water deg. centigrade | DAILY MX | report only | Jan, Feb, Mar, Nov, Dec |
| MT3 | Temperature, water deg. centigrade | MX 7D AV | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| MT3 | pH | DAILY MN | >= 6 SU | all year |
| MT3 | pH | DAILY MX | <= 9 SU | all year |
| MT3 | Alkalinity, total [as CaCO3] | MO MAX | report only | all year |
| MT3 | Solids, total suspended | MO AVG | <= 5 mg/L | all year |
| MT3 | Solids, total suspended | DAILY MX | <= 10 mg/L | all year |
| MT3 | Solids, settleable | MO AVG | <= .1 mL/L | all year |
| MT3 | Solids, settleable | DAILY MX | report only | all year |
| MT3 | Nitrogen, ammonia total [as N] | VALUE | report only | all year |
| MT3 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| MT3 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| MT3 | Excess thermal load | MX 7D AV | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| MT3 | Formaldehyde | VALUE | report only | all year |
| MTA | Excess thermal load | MX 7D AV | <= 62 mkcal/day | Apr, May, Jun, Jul, Aug, Sep, Oct |
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