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Glenn Springs Holdings, Incorporated

Special Trade Contractors, Montague, Michigan. NPDES permit MI0002631 expired Oct 1, 2018; its limits still apply. Last 12 months: no values over a limit, 40 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: form B monthly (27 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 72 required values missing, 4 of 12 reports late

Limits in force (39)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Carbon tetrachloridedaily maximum≤ 5 ug/Lall year
Carbon tetrachloridemonthly averagereport only (ug/L)all year
Carbon tetrachloridedaily maximumreport only (ug/L)all year
Carbon tetrachloridemonthly averagereport only (ug/L)all year
Carbon tetrachloridedaily maximumreport only (ug/L)all year
Carbon tetrachloridemonthly averagereport only (ug/L)all year
Carbon tetrachloridedaily maximumreport only (ug/L)all year
Chloroformdaily maximum≤ 5 ug/Lall year
Chloroformmonthly averagereport only (ug/L)all year
Chloroformdaily maximumreport only (ug/L)all year
Chloroformmonthly averagereport only (ug/L)all year
Chloroformdaily maximumreport only (ug/L)all year
Chloroformmonthly averagereport only (ug/L)all year
Chloroformdaily maximumreport only (ug/L)all year
Hexachlorocyclopentadienedaily maximumreport only (ug/L)all year
Hexachloroethanedaily maximumreport only (ug/L)all year
Tetrachloroethylenedaily maximum≤ 5 ug/Lall year
Trichloroethylenedaily maximum≤ 5 ug/Lall year
Hexachlorobenzenemaximum monthly average≤ .01 ug/Lall year
Hexachlorobenzenedaily maximumreport only (ug/L)all year
Hexachlorobenzenemonthly average≤ .0003 ug/Lall year
Hexachlorobenzenedaily maximumreport only (ug/L)all year
Hexachlorobenzenemonthly average≤ .0000033 lb/dall year
Hexachlorobenzenedaily maximumreport only (lb/d)all year
Hexachlorobutadienedaily maximumreport only (ug/L)all year
Mirexmonthly average≤ .01 ug/Lall year
Mirexdaily maximumreport only (ug/L)all year
Mirexmonthly average≤ .000016 ug/Lall year
Mirexdaily maximumreport only (ug/L)all year
Mirexmonthly average≤ .00000017 lb/dall year
Mirexdaily maximumreport only (lb/d)all 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
Solids, total dissolvedmonthly averagereport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Octachlorocyclopentenedaily maximumreport only (ug/L)all year
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year

How strict are these limits?

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

Same industry: the 11 Construction — Special Trade Contractors permits in Michigan.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MI0002631 · MCP: https://passage-data.com/mcp