NPDES permit AR0021601 · Major POTW · administratively continued, expires 2024-04-30 · EPA's file as of 2026-09-19
Check this month's numbers before you fileThis permit expired on 2024-04-30 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: 2026-07-31. Most often over: Whole Effluent Toxicity [WET] - C. dubia (2), Nitrogen, ammonia total [as N] (1).
Reports are due about 25 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 | Oxygen, dissolved [DO] | INST MIN | >= 2 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 | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 20 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | DAILY MX | <= 45 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | 7 DA AVG | <= 30 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | <= 1251 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 834 lb/d | 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] | MO AVG | <= 5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | 7 DA AVG | <= 15 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | 7 DA AVG | <= 7.5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 417 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 208.5 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 001 | Nitrite + Nitrate total [as N] | 7 DA AVG | report only | all year |
| 001 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 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 | <= .056 mg/L | all year |
| 001 | Coliform, fecal, colony forming units | 30DA GEO | <= 1000 #/100mL | Jan, Feb, Mar, Oct, Nov, Dec |
| 001 | Coliform, fecal, colony forming units | 30DA GEO | <= 200 #/100mL | Apr, May, Jun, Jul, Aug, Sep |
| 001 | Coliform, fecal, colony forming units | 7 DA GEO | <= 2000 #/100mL | Jan, Feb, Mar, Oct, Nov, Dec |
| 001 | Coliform, fecal, colony forming units | 7 DA GEO | <= 400 #/100mL | Apr, May, Jun, Jul, Aug, Sep |
| 001 | Coliform, fecal, colony forming units | MO AVG | <= 379000 MCFU/d | Jan, Feb, Mar, Oct, Nov, Dec |
| 001 | Coliform, fecal, colony forming units | MO AVG | <= 75700 MCFU/d | Apr, May, Jun, Jul, Aug, Sep |
| 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 | <= 15 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] | 7 DA AVG | <= 22.5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 37.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 625.5 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1042.5 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| TX1 | WET, sublethal retest #1 | 7 DA AVG | report only | all year |
| TX1 | WET, sublethal retest #2 | 7 DA AVG | report only | all year |
| TX1 | Whole Effluent Toxicity, Sub-Lethal Retest #3 | 7 DA AVG | report only | all year |
| TX1 | Whole Effluent Toxicity [WET] - C. dubia | 7 DA MIN | >= 20 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - C. dubia | 7 DA MIN | >= 20 % | all year |
| TX1 | Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA AVG | report only | all year |
| TX1 | Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 7 DA AVG | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA AVG | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7 DA AVG | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA AVG | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA AVG | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA AVG | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA AVG | report only | all year |
| TX1 | Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 7 DA AVG | report only | all year |
| TX1 | Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 7 DA AVG | 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