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City of Fennville

Water Supply, Fennville, Michigan. NPDES permit MI0058966 expired Oct 1, 2026; its limits still apply. 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 (18 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (20)

ParameterStatisticLimitMonths
pHdaily minimum= 6.5 SUall year
pHdaily maximum= 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 50 mg/Lall year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year
Iron, total [as Fe]monthly average≤ 5 mg/Lall year
Iron, total [as Fe]daily maximumreport only (mg/L)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
Chlorine, total residualdaily maximum≤ 38 ug/Lall year
Chlorine, total residualdaily geometric mean= 200 ug/Lall year
Chlorine, total residualinstantaneous maximum= 300 ug/Lall year
Solids, total dissolveddaily maximum≤ 750 mg/LJan, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Solids, total dissolveddaily maximum≤ 1500 mg/LFeb–Apr
Solids, total dissolveddaily maximum≤ 350 lb/dJan, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Solids, total dissolveddaily maximum≤ 710 lb/dFeb–Apr
Chlorination durationdaily maximumreport only (min/d)all year
Chlorination durationdaily maximum= 160 min/dall 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 6 Water Supply 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/MI0058966 · MCP: https://passage-data.com/mcp