NPDES permit AR0037974 · Minor POTW · administratively continued, expires 2025-12-31 · EPA's file as of 2026-09-19
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This permit expired on 2025-12-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-08-31.
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 |
|---|---|---|---|---|
| 002 | Oxygen, dissolved [DO] | INST MIN | >= 3 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 002 | Oxygen, dissolved [DO] | INST MIN | >= 6 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Solids, total suspended | MO AVG | <= 20 mg/L | all year |
| 002 | Solids, total suspended | DAILY MX | <= 30 mg/L | all year |
| 002 | Solids, total suspended | MO AVG | <= 83.4 lb/d | all year |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 10 mg/L | Jan, Feb, Mar, Nov, Dec |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 5.2 mg/L | Apr |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 14.7 mg/L | Jan, Feb, Mar, Nov, Dec |
| 002 | Nitrogen, ammonia total [as N] | 7 DA AVG | <= 5.2 mg/L | Apr |
| 002 | Nitrogen, ammonia total [as N] | 7 DA AVG | <= 7.5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 41.7 lb/d | Jan, Feb, Mar, Nov, Dec |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 21.7 lb/d | Apr |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 20.9 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 002 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 002 | Chlorine, total residual | INST MAX | report only | all year |
| 002 | Coliform, fecal general | 30DA GEO | <= 1000 #/100mL | all year |
| 002 | Coliform, fecal general | 7 DA GEO | <= 2000 #/100mL | all year |
| 002 | Overflows | MO TOTAL | report only | all year |
| 002 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 002 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 15 mg/L | all year |
| 002 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 23 mg/L | all year |
| 002 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 62.6 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