NPDES permit AR0001503 · Minor NON-POTW · administratively continued, expires 2025-12-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileThis 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: 2026-07-31.
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 | Turbidity | INST MAX | <= 21 NTU | all year |
| 001 | Oxygen demand, chem. [low level] [COD] | MO AVG | <= 50 mg/L | all year |
| 001 | Oxygen demand, chem. [low level] [COD] | DAILY MX | <= 75 mg/L | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Oil & Grease | MO AVG | <= 10 mg/L | all year |
| 001 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 001 | Sulfate, total [as SO4] | MO AVG | <= 250 mg/L | all year |
| 001 | Sulfate, total [as SO4] | DAILY MX | <= 375 mg/L | 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 | Solids, total dissolved | MO AVG | <= 432 mg/L | all year |
| 001 | Solids, total dissolved | DAILY MX | <= 648 mg/L | all year |
| 002 | Turbidity | INST MAX | <= 21 NTU | all year |
| 002 | Oxygen demand, chem. [low level] [COD] | MO AVG | <= 50 mg/L | all year |
| 002 | Oxygen demand, chem. [low level] [COD] | DAILY MX | <= 75 mg/L | all year |
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Oil & Grease | MO AVG | <= 10 mg/L | all year |
| 002 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 002 | Sulfate, total [as SO4] | MO AVG | <= 250 mg/L | all year |
| 002 | Sulfate, total [as SO4] | DAILY MX | <= 375 mg/L | all year |
| 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 | Solids, total dissolved | MO AVG | <= 432 mg/L | all year |
| 002 | Solids, total dissolved | DAILY MX | <= 648 mg/L | all year |
| TX1 | Whole effluent toxicity - retest #1 | 7 DA MIN | report only | all year |
| TX1 | Whole effluent toxicity - retest #2 | 7 DA MIN | report only | all year |
| TX1 | WET, sublethal retest #1 | 7 DA MIN | report only | all year |
| TX1 | WET, sublethal retest #2 | 7 DA MIN | report only | all year |
| TX1 | Whole Effluent Toxicity - Retest #3 | 7 DA MIN | report only | all year |
| TX1 | Whole Effluent Toxicity, Sub-Lethal Retest #3 | 7 DA MIN | report only | all year |
| TX1 | Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX2 | Whole effluent toxicity - retest #1 | 7 DA MIN | report only | all year |
| TX2 | Whole effluent toxicity - retest #2 | 7 DA MIN | report only | all year |
| TX2 | WET, sublethal retest #1 | 7 DA MIN | report only | all year |
| TX2 | WET, sublethal retest #2 | 7 DA MIN | report only | all year |
| TX2 | Whole Effluent Toxicity - Retest #3 | 7 DA MIN | report only | all year |
| TX2 | Whole Effluent Toxicity, Sub-Lethal Retest #3 | 7 DA MIN | report only | all year |
| TX2 | Whole Effluent Toxicity [WET] - C. dubia | 7 DA MIN | >= 100 % | all year |
| TX2 | Whole Effluent Toxicity [WET] - C. dubia | 7 DA MIN | >= 80 % | all year |
| TX2 | Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX2 | Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX2 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX2 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX2 | NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX2 | NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX2 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX2 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX2 | Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX2 | Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 7 DA MIN | 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