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Sewage treatment plant, Fouke, Arkansas. NPDES permit AR0041548 expired Nov 30, 2023; its limits still apply. Last 12 months: over a limit 4 times (last January 2026), 18 required values missing, 10 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | pH, maximum | 9.2 SU | ≤ 9 SU | — |
| January 2026 | BOD, carbonaceous [5 day, 20 C], 7-day average | 53.5 mg/L | ≤ 37.5 mg/L | 43% |
| January 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 53.5 mg/L | ≤ 25 mg/L | 114% |
| January 2026 | pH, maximum | 9.4 SU | ≤ 9 SU | — |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 99999999 mg/L | May–Oct |
| pH | minimum | ≥ 99999999 SU | May–Oct |
| pH | minimum | ≥ 6 SU | Jan, Feb, Mar, Apr, Nov, Dec |
| pH | maximum | ≤ 0 SU | May–Oct |
| pH | maximum | ≤ 9 SU | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total suspended | monthly average | ≤ 0 mg/L | May–Oct |
| Solids, total suspended | monthly average | ≤ 90 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total suspended | 7-day average | ≤ 0 mg/L | May–Oct |
| Solids, total suspended | 7-day average | ≤ 135 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total suspended | monthly average | ≤ 0 lb/d | May–Oct |
| Solids, total suspended | monthly average | ≤ 127.6 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 10.8 mg/L | Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 0 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 10.8 mg/L | Apr |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 0 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 18 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 15.3 lb/d | Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 0 lb/d | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 17 lb/d | Jan, Feb, Mar, Nov, Dec |
| Chloride [as Cl] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Chloride [as Cl] | monthly average | ≤ 0 mg/L | May–Oct |
| Chloride [as Cl] | 7-day average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Chloride [as Cl] | 7-day average | ≤ 0 mg/L | May–Oct |
| Chloride [as Cl] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Chloride [as Cl] | monthly average | ≤ 0 lb/d | May–Oct |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Sulfate, total [as SO4] | monthly average | ≤ 0 mg/L | May–Oct |
| Sulfate, total [as SO4] | 7-day average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Sulfate, total [as SO4] | 7-day average | ≤ 0 mg/L | May–Oct |
| Sulfate, total [as SO4] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Sulfate, total [as SO4] | monthly average | ≤ 0 lb/d | May–Oct |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 0 MGD | May–Oct |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Jan, Feb, Mar, Apr, Nov, Dec |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 0 MGD | May–Oct |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total dissolved | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total dissolved | monthly average | ≤ 0 mg/L | May–Oct |
| Solids, total dissolved | 7-day average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total dissolved | 7-day average | ≤ 0 mg/L | May–Oct |
| Solids, total dissolved | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total dissolved | monthly average | ≤ 0 lb/d | May–Oct |
| Nitrogen, nitrate total [as NO3] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrate total [as NO3] | monthly average | ≤ 0 mg/L | May–Oct |
| Nitrogen, nitrate total [as NO3] | 7-day average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrate total [as NO3] | 7-day average | ≤ 0 mg/L | May–Oct |
| Nitrogen, nitrate total [as NO3] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrate total [as NO3] | monthly average | ≤ 0 lb/d | May–Oct |
| Coliform, fecal general | 30-day geometric mean | ≤ 1000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec |
| Coliform, fecal general | 30-day geometric mean | ≤ 0 #/100mL | May–Oct |
| Coliform, fecal general | 7-day geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec |
| Coliform, fecal general | 7-day geometric mean | ≤ 0 #/100mL | May–Oct |
| Overflows | monthly total | report only (occur/mo) | all year |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (gal) | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 0 mg/L | May–Oct |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 37.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 0 mg/L | May–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 35.4 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 0 lb/d | May–Oct |
Cited limits by parameter: Arkansas's rules and the federal ones.
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