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Hexpol Huntingdon

Fabricated Rubber Products, Huntingdon, Tennessee. NPDES permit TN0064521, in force until Aug 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form G monthly (6 values), form Q quarterly (1 value)
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 16 reports late

Limits in force (7)

Parameter	Statistic	Limit	Months
Temperature, water deg. centigrade	maximum	≤ 30.5 deg C	all year
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	daily maximum	≤ 40 mg/L	all year
Oil and grease	daily maximum	≤ 15 mg/L	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

How strict are these limits?

Temperature, water deg. centigrade, maximum 30.5 deg C — stricter than 57% of 28 other minor industrial and other permits nationwide
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
Oil and grease, daily maximum 15 mg/L — stricter than 13% of 30 other minor industrial and other permits in Tennessee; 80% have the same limit

Cited limits by parameter: Tennessee's rules and the federal ones.

Same industry: the 6 Rubber and Miscellaneous Plastics Products permits in Tennessee.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TN0064521 · MCP: https://passage-data.com/mcp