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Sewage treatment plant, major discharger, Bryant, Arkansas. NPDES permit AR0034002 expired Feb 28, 2026; its limits still apply. Last 12 months: over a limit once (last March 2026), 1 of 15 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| March 2026 | Nitrogen, ammonia total [as N], 7-day average | 9.88 mg/L | ≤ 9 mg/L | 10% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | May–Oct | 001 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 6 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 22.5 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 375.3 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 6 mg/L | Jan, Feb, Mar, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.4 mg/L | Apr–Oct | 001 |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 9 mg/L | Jan, Feb, Mar, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 6.1 mg/L | Apr–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 150.1 lb/d | Jan, Feb, Mar, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 60 lb/d | Apr–Oct | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | 7-day average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | 7-day average | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ 115.6 ug/L | all year | 001 |
| Zinc, total recoverable | 7-day average | ≤ 232 ug/L | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ 2.89 lb/d | all year | 001 |
| Copper, total recoverable | monthly average | ≤ 12.2 ug/L | all year | 001 |
| Copper, total recoverable | 7-day average | ≤ 24.5 ug/L | all year | 001 |
| Copper, total recoverable | monthly average | ≤ .31 lb/d | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .011 mg/L | all year | 001 |
| Mercury, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Mercury, total recoverable | 7-day average | report only (mg/L) | all year | 001 |
| Mercury, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Coliform, fecal general | 30-day geometric mean | ≤ 1000 #/100mL | all year | 001 |
| Coliform, fecal general | 7-day geometric mean | ≤ 2000 #/100mL | all year | 001 |
| Overflows | monthly total | report only (occur/mo) | all year | 001 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (gal) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 15 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 250.2 lb/d | all year | 001 |
| Whole effluent toxicity - retest #1 | value | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #2 | value | report only (pass=0;fail=1) | all year | TX1 |
| Whole Effluent Toxicity - Retest #3 | value | report only (pass=0;fail=1) | all year | TX1 |
| Whole Effluent Toxicity [WET] - C. dubia | 7-day minimum | ≥ 100 % | all year | TX1 |
| Whole Effluent Toxicity [WET] - C. dubia | 7-day minimum | ≥ 80 % | all year | TX1 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day average | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 7-day average | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day average | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7-day average | report only (pass=0;fail=1) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day average | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day average | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day average | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day average | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 7-day average | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 7-day average | report only (%) | all year | TX1 |
Cited limits by parameter: Arkansas's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
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