NPDES permit OR0028801 · Major POTW · effective, expires 2031-01-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-08-31. Most often over: Excess thermal load (1).
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 |
|---|---|---|---|---|
| 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 | pH | DAILY MN | >= 6 SU (alert) | all year |
| 001 | pH | DAILY MX | <= 9 SU (alert) | all year |
| 001 | pH | MO MIN | report only | all year |
| 001 | pH | MO MAX | report only | all year |
| 001 | Solids, total suspended | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 10 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 1300 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | <= 7300 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 10 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 1300 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | <= 7300 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | DAILY MX | <= 2600 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | DAILY MX | <= 15000 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MX WK AV | <= 15 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MX WK AV | <= 45 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MX WK AV | <= 2000 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MX WK AV | <= 11000 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO MAX | 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 | Chlorine, total residual | MO AVG | <= 1.03 mg/L (alert) | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 1.72 mg/L (alert) | all year |
| 001 | E. coli | MO GEO | <= 126 #/100mL | all year |
| 001 | E. coli | DAILY MX | <= 406 #/100mL | all year |
| 001 | E. coli | MO GEO | <= 126 #/100mL | all year |
| 001 | E. coli | DAILY MX | report only | all year |
| 001 | Excess thermal load | MX 7D AV | <= 162 mkcal/day | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Excess thermal load | MX 7D AV | <= 155 mkcal/day | Apr, May |
| 001 | Excess thermal load | MX 7D AV | <= 405 mkcal/day | Oct, Nov |
| 001 | Excess thermal load | MX 7D AV | <= 267 mkcal/day | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Excess thermal load | MX 7D AV | <= 310 mkcal/day | Apr, May |
| 001 | Excess thermal load | MX 7D AV | <= 536 mkcal/day | Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 10 mg/L | May, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1100 lb/d | May, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | report only | May, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 15 mg/L | May, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 1600 lb/d | May, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 10 mg/L | May, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1100 lb/d | May, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 2200 lb/d | May, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 10 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 25 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1300 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 3000 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 10 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 25 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1300 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 3000 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 2600 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 6100 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 15 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 40 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 2000 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 4600 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carb-5 day, 20 deg C, percent removal | MO AV MN | >= 85 % | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | Chlorine usage | MO AVG | report only | all year |
| 001 | pH range excursions, > 60 minutes | TOTAL | <= 0 occur/mo (alert) | all year |
| 001 | pH range excursions, monthly total accum | TOTAL | <= 446 min (alert) | all year |
| 001 | Report due [yrmoda] | VALUE | report only | 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