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Travelcenters of America - Seymour

Gasoline Service Stations, Seymour, Indiana. NPDES permit IN0057789, in force until Feb 28, 2031. Last 12 months: no values over a limit, 4 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form A monthly (9 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 6 values over a limit, 0 required values missing, 4 of 12 reports late

Limits in force (9)

Parameter	Statistic	Limit	Months
pH	daily minimum	≥ 6 SU	all year
pH	daily maximum	≤ 9 SU	all year
Oil and grease, hexane extr method	monthly average	≤ 10 mg/L	all year
Oil and grease, hexane extr method	daily maximum	≤ 15 mg/L	all year
Benzene	daily maximum	≤ .005 mg/L	all year
Naphthalene	daily maximum	≤ .01 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
Flow, total	monthly total	report only (Mgal/mo)	all year

How strict are these limits?

Benzene, daily maximum .005 mg/L — stricter than 76% of 147 other minor industrial and other permits nationwide; 15% have the same limit
Naphthalene, daily maximum .01 mg/L — stricter than 75% of 44 other minor industrial and other permits nationwide; 20% have the same limit

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

Same industry: the 11 Automotive Dealers and Gasoline Service Stations permits in Indiana.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0057789 · MCP: https://passage-data.com/mcp