Passage Data · Check a report · Use it from your AI

Michigan Seamless Tube, LLC

Steel Pipe And Tubes, major discharger, South Lyon, Michigan. NPDES permit MI0001902, in force until Oct 1, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: form A monthly (72 values)
Renewal application due
Apr 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 1 required value missing, 1 of 12 reports late

Limits in force (72)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Thermal Dischargedaily maximumreport only (MBTU/hr)all year
Total production - massmonthly totalreport only (ton/yr)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendedmonthly average≤ 130 lb/dall year
Solids, total suspendeddaily maximum≤ 310 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendedmonthly average= 160 lb/dall year
Solids, total suspendeddaily maximum= 380 lb/dall year
Oil & Greasemonthly averagereport only (mg/L)all year
Oil & Greasedaily maximum≤ 10 mg/Lall year
Oil & Greasemonthly average≤ 40 lb/dall year
Oil & Greasedaily maximum= 80 lb/dall year
Oil & Greasemonthly averagereport only (mg/L)all year
Oil & Greasedaily maximum= 10 mg/Lall year
Oil & Greasemonthly average= 50 lb/dall year
Oil & Greasedaily maximum= 80 lb/dall year
Phosphorus, total [as P]monthly average≤ .25 mg/Lall year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]daily maximumreport only (lb/d)all year
Phosphorus, total [as P]annual maximum≤ 640 lb/yrall year
Phosphorus, total [as P]monthly maximumreport only (lb/mo)all year
Chloride [as Cl]daily maximumreport only (ug/L)all year
Sulfate, total [as SO4]daily maximumreport only (ug/L)all year
Arsenic, total [as As]daily maximumreport only (ug/L)all year
Cadmium, total [as Cd]daily maximumreport only (ug/L)all year
Copper, total [as Cu]daily maximumreport only (ug/L)all year
Lead, total [as Pb]monthly averagereport only (ug/L)all year
Lead, total [as Pb]daily maximumreport only (ug/L)all year
Lead, total [as Pb]monthly average= .39 lb/dall year
Lead, total [as Pb]daily maximum= 1.2 lb/dall year
Lead, total [as Pb]monthly averagereport only (ug/L)all year
Lead, total [as Pb]daily maximumreport only (ug/L)all year
Lead, total [as Pb]monthly average= .49 lb/dall year
Lead, total [as Pb]daily maximum= 1.5 lb/dall year
Silver, total [as Ag]daily maximumreport only (ug/L)all year
Zinc, total [as Zn]monthly averagereport only (ug/L)all year
Zinc, total [as Zn]daily maximumreport only (ug/L)all year
Zinc, total [as Zn]monthly average≤ .52 lb/dall year
Zinc, total [as Zn]daily maximum≤ 1.6 lb/dall year
Zinc, total [as Zn]monthly averagereport only (ug/L)all year
Zinc, total [as Zn]daily maximumreport only (ug/L)all year
Zinc, total [as Zn]monthly average= .65 lb/dall year
Zinc, total [as Zn]daily maximum= 1.9 lb/dall year
Cyanide [A]monthly average= 8.5 ug/Lall year
Cyanide [A]daily maximumreport only (ug/L)all year
Cyanide [A]monthly average≤ .07 lb/dall year
Cyanide [A]daily maximumreport only (lb/d)all year
Toxicity, choice of speciesmonthly averagereport only (tox chronic)all year
Toxicity, choice of speciesvaluereport only (tox chronic)all year
Tetrachloroethylenedaily maximum< 1 ug/Lall year
Naphthalenedaily maximum< 1 ug/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ 38 ug/Lall year
Toxicity [acute], Ceriodaphnia dubiadaily maximum= 1 tox acuteall year
Mercury, total [as Hg]monthly averagereport only (ng/L)all year
Mercury, total [as Hg]daily maximumreport only (ng/L)all year
Mercury, total [as Hg]monthly averagereport only (lb/d)all year
Mercury, total [as Hg]daily maximumreport only (lb/d)all year
Mercury, total [as Hg]12-month average= 3 ng/Lall year
Mercury, total [as Hg]12-month average= .000025 lb/dall year
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year
TU Static 24 Hr Acute Pimephales promelasdaily maximum= 1 tox acuteall year
Static 48 Hr Chronic Pimphales Promelasmonthly averagereport only (tox chronic)all year
Static 48 Hr Chronic Pimphales Promelasvaluereport only (tox chronic)all year

How strict are these limits?

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

Same industry: the 9 Primary Metal Industries permits in Michigan.

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MI0001902 · MCP: https://passage-data.com/mcp