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Transportation Services, Jonesboro, Arkansas. NPDES permit AR0053163 expired Apr 30, 2026; its limits still apply. Last 12 months: no values over a limit, 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 4 mg/L | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 20 mg/L | May–Oct |
| Solids, total suspended | monthly average | ≤ 86 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | May–Oct |
| Solids, total suspended | daily maximum | ≤ 230 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total suspended | monthly average | ≤ .8 lb/d | May–Oct |
| Solids, total suspended | monthly average | ≤ 3.4 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| Solids, total suspended | daily maximum | ≤ 1.2 lb/d | May–Oct |
| Solids, total suspended | daily maximum | ≤ 9.2 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| Oil & Grease | monthly average | ≤ 8.8 mg/L | all year |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year |
| Oil & Grease | monthly average | ≤ .4 lb/d | all year |
| Oil & Grease | daily maximum | ≤ .6 lb/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 5.2 mg/L | Apr–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 14.7 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5.2 mg/L | Apr–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 14.7 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .2 lb/d | Apr–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .6 lb/d | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .2 lb/d | Apr–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .6 lb/d | Jan, Feb, Mar, Nov, Dec |
| 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 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 15 mg/L | May–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 24 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 23 mg/L | May–Oct |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 56 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .6 lb/d | May–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ .9 lb/d | May–Oct |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 2.2 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
Cited limits by parameter: Arkansas's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/AR0053163 · MCP: https://passage-data.com/mcp