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Sewage treatment plant, major discharger, Fayetteville, Arkansas. NPDES permit AR0050288, in force until Dec 31, 2030. Last 12 months: no values over a limit, 1 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | 7-day average | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | monthly average | report only (lb/d) | all year | 001 |
| Arsenic, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | 7-day average | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| WET, sublethal retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| WET, sublethal retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Whole Effluent Toxicity - Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX1 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Nitrogen, nitrate total [as NO3], 7-day average | 10 mg/L | new | 4.2 mg/L (8 values) | 0.42× |
| Nitrogen, nitrate total [as NO3], monthly average | 10 mg/L | new | 2.7 mg/L (8 values) | 0.27× |
| Nitrogen, nitrate total [as NO3], monthly average | 834 lb/d | new | 184 lb/d (8 values) | 0.221× |
Cited limits by parameter: Arkansas's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/AR0050288 · MCP: https://passage-data.com/mcp