NPDES permit AR0020168 · Minor POTW · effective, expires 2031-07-31 · 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 (3), Coliform, fecal general (2), Oxygen, dissolved [DO] (1).
Reports are due about 25 days after each monitoring period ends (the most common figure among AR permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | INST MIN | >= 5 mg/L | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | 7 DA AVG | <= 45 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 50 lb/d | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | 7 DA AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 3 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 12 mg/L | Jan, Feb, Mar, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 6.1 mg/L | Apr |
| 001 | Nitrogen, ammonia total [as N] | 7 DA AVG | <= 4.5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | 7 DA AVG | <= 17 mg/L | Jan, Feb, Mar, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | 7 DA AVG | <= 6.1 mg/L | Apr |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 5 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 20 lb/d | Jan, Feb, Mar, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 10.2 lb/d | Apr |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | 7 DA AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | 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 | INST MAX | report only | all year |
| 001 | E. coli | MO GEO | <= 126 #/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | E. coli | MO GEO | <= 630 #/100mL | Jan, Feb, Mar, Nov, Dec |
| 001 | E. coli | 7 DA GEO | <= 410 #/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | E. coli | 7 DA GEO | <= 2050 #/100mL | Jan, Feb, Mar, Nov, Dec |
| 001 | Overflows | MO TOTAL | report only | all year |
| 001 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 25 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | 7 DA AVG | <= 40 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 41.7 lb/d | 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