Chem-Trend Limited Partnership

NPDES permit MI0041718 · Minor NON-POTW · effective, expires 2030-10-01 · EPA's file as of 2026-09-26

Keep this permit as a site — opens New site at EPA's facility point (42.59386, -83.89088); you set the radius.

These are the last limits EPA's file holds for this permit, from an earlier version of it (version 4 in EPA's file): its current version carries none yet. Read your permit: a renewal can change them.

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-06-30. Most often over: Solids, total suspended (2).

Reporting

Reports are due about 21 days after each monitoring period ends (the most common figure among MI permits in EPA's filings — check your permit).

• Outfall 001, form A (001A): every 1 month(s), 20 values
• Outfall 001, form F (001F): every 1 month(s), 23 values

How strict are these limits?

Each concentration limit against the same limit in comparable permits. Where it appears more than once, its strictest value.

• 1,1-Dichloroethane, daily maximum 2 ug/L — stricter than 98% of 70 other minor industrial and other permits nationwide
• Methyl chloride [Chloromethane], daily maximum 5 ug/L — stricter than 97% of 43 other minor industrial and other permits nationwide
• 1,2,4-Trichlorobenzene, daily maximum 5 ug/L — stricter than 97% of 36 other minor industrial and other permits nationwide
• Chloroethane, daily maximum 5 ug/L — stricter than 88% of 43 other minor industrial and other permits nationwide; 9% have the same limit
• Xylene [mix of m+o+p], daily maximum 5 ug/L — stricter than 86% of 76 other minor industrial and other permits nationwide; 13% have the same limit
• 1,1,1-Trichloroethane, daily maximum 5 ug/L — stricter than 84% of 83 other minor industrial and other permits nationwide; 13% have the same limit
• Toluene, daily maximum 5 ug/L — stricter than 83% of 172 other minor industrial and other permits nationwide; 16% have the same limit
• 1,1,2-Trichloroethane, daily maximum 5 ug/L — stricter than 81% of 54 other minor industrial and other permits nationwide; 15% have the same limit
• 1,1-Dichloroethylene, daily maximum 5 ug/L — stricter than 69% of 78 other minor industrial and other permits nationwide; 13% have the same limit
• 1,2-Dichloroethane, daily maximum 5 ug/L — stricter than 69% of 73 other minor industrial and other permits nationwide; 19% have the same limit
• Trichloroethylene, daily maximum 5 ug/L — stricter than 59% of 154 other minor industrial and other permits nationwide; 34% have the same limit
• Vinyl chloride, daily maximum 3 ug/L — stricter than 58% of 103 other minor industrial and other permits nationwide; 10% have the same limit
• Solids, total suspended, daily maximum 45 mg/L — stricter than 40% of 50 other minor industrial and other permits in Michigan; 14% have the same limit
• Solids, total suspended, monthly average 30 mg/L — stricter than 13% of 104 other minor industrial and other permits in Michigan; 32% have the same limit
• pH, daily maximum 9 SU — stricter than 7% of 176 other minor industrial and other permits in Michigan; 93% have the same limit
• Chlorine, total residual, instantaneous maximum 300 ug/L — stricter than 5% of 34 other minor industrial and other permits nationwide; 12% have the same limit
• Oxygen, dissolved [DO], daily minimum at least 3 mg/L — stricter than 0% of 109 other minor industrial and other permits in Michigan; 16% have the same limit
• pH, daily minimum at least 6.5 SU — stricter than 0% of 175 other minor industrial and other permits in Michigan; 100% have the same limit
• Chlorine, total residual, daily maximum 38 ug/L — stricter than 0% of 45 other minor industrial and other permits in Michigan; 100% have the same limit

2 other limits: fewer than 20 comparable permits.

Limits in force (43)

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states