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Trunkline Gas Company, LLC.

Natural Gas Transmission, Dyersburg, Tennessee. NPDES permit TN0072966, in force until May 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form Q quarterly (8 values)
Renewal application due: Dec 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file: June 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 4 reports late

Limits in force (8)

Parameter	Statistic	Limit	Months
pH	minimum	≥ 6 SU	Mar, Jun, Sep, Dec
pH	maximum	≤ 9 SU	Mar, Jun, Sep, Dec
Solids, total suspended	monthly average	≤ 30 mg/L	Mar, Jun, Sep, Dec
Solids, total suspended	daily maximum	≤ 40 mg/L	Mar, Jun, Sep, Dec
Oil and grease, hexane extr method	monthly average	≤ 10 mg/L	Mar, Jun, Sep, Dec
Oil and grease, hexane extr method	daily maximum	≤ 15 mg/L	Mar, Jun, Sep, Dec
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	Mar, Jun, Sep, Dec
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	Mar, Jun, Sep, Dec

How strict are these limits?

Solids, total suspended, monthly average 30 mg/L — stricter than 82% of 432 other minor industrial and other permits in Tennessee; 13% have the same limit
Oil and grease, hexane extr method, monthly average 10 mg/L — stricter than 29% of 206 other minor industrial and other permits nationwide; 56% have the same limit
Solids, total suspended, daily maximum 40 mg/L — stricter than 22% of 474 other minor industrial and other permits in Tennessee; 74% have the same limit

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/TN0072966 · MCP: https://passage-data.com/mcp