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Gasoline Service Stations, Proctor, Arkansas. NPDES permit AR0044890 expired Jan 31, 2026; its limits still apply. Last 12 months: over a limit 3 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| May 2026 | Nitrogen, ammonia total [as N], daily maximum | 6.8 mg/L | ≤ 6 mg/L | 13% |
| May 2026 | Nitrogen, ammonia total [as N], monthly average | 6.8 mg/L | ≤ 4 mg/L | 70% |
| June 2026 | pH, minimum | 5.79 SU | ≥ 6 SU | — |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| 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 | ≤ 20 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year |
| Solids, total suspended | monthly average | ≤ .4 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ .6 lb/d | all year |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year |
| Oil & Grease | monthly average | ≤ .2 lb/d | all year |
| Oil & Grease | daily maximum | ≤ .3 lb/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 5.2 mg/L | Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 14 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5.2 mg/L | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 14.7 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .1 lb/d | Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .3 lb/d | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .1 lb/d | May–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .1 lb/d | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .3 lb/d | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .1 lb/d | May–Oct |
| 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 | report only (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 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 20 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 30 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .4 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ .6 lb/d | all year |
Cited limits by parameter: Arkansas's rules and the federal ones.
Same industry: the 13 Automotive Dealers and Gasoline Service Stations permits in Arkansas.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/AR0044890 · MCP: https://passage-data.com/mcp