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Railroads, Line-Haul Operating, Memphis, Tennessee. NPDES permit TN0077941 expired Oct 31, 2026. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| pH | monthly average | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year |
| Floating solids, waste or visible foam-visual | value | report only (N=0;Y=1) | all year |
| 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 |
Cited limits by parameter: Tennessee'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/TN0077941 · MCP: https://passage-data.com/mcp