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Speedco 949

General Automotive Repair Shops, Troy, Illinois. NPDES permit IL0080159, in force until Mar 31, 2030. Last 12 months: over a limit 2 times (last July 2026), 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 25 days after each period: form 0 monthly (10 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period ending	Parameter	Reported	Limit	Over by
July 2026	Solids, total suspended, 30-day average	39 mg/L	≤ 12 mg/L	225%
July 2026	Solids, total suspended, daily maximum	39 mg/L	≤ 24 mg/L	63%

Limits in force (10)

Parameter	Statistic	Limit	Months
BOD, 5-day, 20 deg. C	30-day average	≤ 10 mg/L	all year
BOD, 5-day, 20 deg. C	daily maximum	≤ 20 mg/L	all year
pH	monthly minimum	≥ 6.5 SU	all year
pH	monthly maximum	≤ 9 SU	all year
Solids, total suspended	30-day average	≤ 12 mg/L	all year
Solids, total suspended	daily maximum	≤ 24 mg/L	all year
Oil & Grease	30-day average	≤ 15 mg/L	all year
Oil & Grease	daily maximum	≤ 30 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?

Solids, total suspended, 30-day average 12 mg/L — stricter than 85% of 259 other minor industrial and other permits in Illinois; 14% have the same limit
BOD, 5-day, 20 deg. C, 30-day average 10 mg/L — stricter than 47% of 71 other minor industrial and other permits in Illinois; 51% have the same limit
Solids, total suspended, daily maximum 24 mg/L — stricter than 45% of 508 other minor industrial and other permits in Illinois; 54% have the same limit

Cited limits by parameter: Illinois'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/IL0080159 · MCP: https://passage-data.com/mcp