NPDES permit OR0020737 · Major POTW · effective, expires 2030-10-31 · 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: pH range excursions, > 60 minutes (1), pH range excursions, monthly total accum (1), Nitrogen, ammonia total [as N] (1).
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 | 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 | Flow rate | MO AVG | report only | all year |
| 001 | Flow rate | DAILY MX | report only | all year |
| 001 | Oxygen, dissolved [DO] | DLYAVMIN | >= 6.5 mg/L | all year |
| 001 | Oxygen, dissolved [DO] | MO AVG | report only | all year |
| 001 | Oxygen, dissolved percent saturation | DLYAVMIN | report only | all year |
| 001 | pH | MO MIN | report only | all year |
| 001 | pH | MO MAX | report only | all year |
| 001 | pH | DAILY MN | >= 6.5 SU | all year |
| 001 | pH | DAILY MX | <= 8.5 SU | all year |
| 001 | pH | DAILY MN | >= 6 SU | all year |
| 001 | pH | DAILY MX | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 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 | <= 230 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | <= 1300 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | DAILY MX | <= 450 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | DAILY MX | <= 2500 lb/d | 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 | <= 270 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | <= 1400 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | DAILY MX | <= 630 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | DAILY MX | <= 3500 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | WKLY AVG | <= 15 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | WKLY AVG | <= 340 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | WKLY AVG | <= 1900 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | WKLY AVG | <= 15 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | WKLY AVG | <= 440 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | WKLY AVG | <= 2300 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 4.1 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.3 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 2.3 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 9.6 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 6.9 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 4 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 10 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 11.8 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Zinc, dissolved [as Zn] | VALUE | report only | all year |
| 001 | Zinc, total [as Zn] | 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 | 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 | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | all year |
| 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 | <= 230 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1000 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 450 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 2100 lb/d | 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 | <= 270 lb/d | 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] | DAILY MX | <= 630 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 3500 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 15 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 40 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 340 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 1600 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 15 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 40 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 440 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 2300 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | Carbonaceous oxygen demand, % removal | MO AV MN | >= 85 % | 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