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Sewage treatment plant, Cabot, Arkansas. NPDES permit AR0052825, in force until Nov 30, 2030. Last 12 months: over a limit 20 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Coliform, fecal general, 30-day geometric mean | 1600 #/100mL | ≤ 1000 #/100mL | 60% |
| January 2026 | pH, minimum | 5.88 SU | ≥ 6 SU | — |
| February 2026 | Chlorine, total residual, instantaneous maximum | 2.1 mg/L | ≤ .011 mg/L | 18991% |
| March 2026 | Chlorine, total residual, instantaneous maximum | .08 mg/L | ≤ .011 mg/L | 627% |
| April 2026 | Chlorine, total residual, instantaneous maximum | .25 mg/L | ≤ .011 mg/L | 2173% |
| May 2026 | Chlorine, total residual, instantaneous maximum | .16 mg/L | ≤ .011 mg/L | 1355% |
| June 2026 | Chlorine, total residual, instantaneous maximum | .09 mg/L | ≤ .011 mg/L | 718% |
| June 2026 | Nitrogen, ammonia total [as N], monthly average | 6.92 mg/L | ≤ 5 mg/L | 38% |
| July 2026 | Chlorine, total residual, instantaneous maximum | .31 mg/L | ≤ .011 mg/L | 2718% |
| July 2026 | Coliform, fecal general, 30-day geometric mean | > 2420 #/100mL | ≤ 1000 #/100mL | — |
| July 2026 | Coliform, fecal general, 7-day geometric mean | > 2420 #/100mL | ≤ 2000 #/100mL | — |
| July 2026 | Nitrogen, ammonia total [as N], 7-day average | 17.1 mg/L | ≤ 7.5 mg/L | 128% |
| July 2026 | Nitrogen, ammonia total [as N], monthly average | 17.1 mg/L | ≤ 5 mg/L | 242% |
| August 2026 | Chlorine, total residual, instantaneous maximum | .55 mg/L | ≤ .011 mg/L | 4900% |
| August 2026 | Nitrogen, ammonia total [as N], 7-day average | 24.1 mg/L | ≤ 7.5 mg/L | 221% |
| August 2026 | Nitrogen, ammonia total [as N], monthly average | 1.04 lb/d | ≤ .88 lb/d | 18% |
| August 2026 | Nitrogen, ammonia total [as N], monthly average | 24.1 mg/L | ≤ 5 mg/L | 382% |
| September 2026 | Nitrogen, ammonia total [as N], 7-day average | 33.1 mg/L | ≤ 7.5 mg/L | 341% |
| September 2026 | Nitrogen, ammonia total [as N], monthly average | 33.1 mg/L | ≤ 5 mg/L | 562% |
| September 2026 | Oxygen, dissolved [DO], instantaneous minimum | 2.3 mg/L | ≥ 3 mg/L | 23% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Flow rate | monthly average | report only (%) | all year |
| Flow rate | 7-day average | report only (%) | all year |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 3 mg/L | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 22.5 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 2.63 lb/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 5 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 10 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 5.2 mg/L | Apr |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 7.5 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 14.7 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 5.2 mg/L | Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .88 lb/d | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.75 lb/d | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .91 lb/d | Apr |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | instantaneous maximum | ≤ .011 mg/L | all year |
| Coliform, fecal general | 30-day geometric mean | ≤ 1000 #/100mL | all year |
| Coliform, fecal general | 7-day geometric mean | ≤ 2000 #/100mL | all year |
| 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 | ≤ 10 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 15 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1.75 lb/d | all year |
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/AR0052825 · MCP: https://passage-data.com/mcp