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Wi Power and Light Edgewater G

Electric Services, major discharger, Frederic, Wisconsin. NPDES permit WI0001589 expired Dec 31, 2025; its limits still apply. Last 12 months: over a limit 3 times (last June 2026), 56 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 004 form A monthly (14 values), outfall 004 form Q quarterly (2 values), outfall 009 form A monthly (8 values), outfall 009 form Q quarterly (1 value), outfall 012 form A monthly (2 values), outfall 101 form Q quarterly (1 value), and 12 more forms
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 22 required values missing, 0 of 166 reports late

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

Period endingParameterReportedLimit
October 2025pH, daily maximum9.1≤ 9 SU
November 2025pH, daily maximum9.04≤ 9 SU
June 2026pH, daily maximum9.44≤ 9 SU

Limits in force (68)

ParameterStatisticLimitMonthsOutfall
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year002
pHdaily minimum≥ 6 SUall year004
pHdaily maximum≤ 9 SUall year004
Solids, total suspendedmonthly average≤ 30 mg/Lall year004
Solids, total suspendeddaily maximum≤ 82 mg/Lall year004
Oil and grease, hexane extr methodmonthly average≤ 11 mg/Lall year004
Oil and grease, hexane extr methoddaily maximum≤ 14 mg/Lall year004
Phosphorus, total [as P]monthly average≤ .6 mg/Lall year004
Arsenic, total recoverabledaily maximum≤ 4.7 ug/Lall year004
Iron, total recoverablemonthly average≤ 1 mg/Lall year004
Iron, total recoverabledaily maximum≤ 1 mg/Lall year004
Zinc, total recoverablemonthly maximumreport only (ug/L)all year004
Copper, total recoverablemonthly average≤ 1 mg/Lall year004
Copper, total recoverabledaily maximum≤ 1 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year004
Mercury, total recoverabledaily maximum≤ 7.3 ng/Lall year004
pHdaily minimum≥ 6 SUall year009
pHdaily maximum≤ 9 SUall year009
Arsenic, total recoverabledaily maximum≤ 2.5 ug/Lall year009
Copper, total recoverablemonthly average≤ .042 mg/Lall year009
Copper, total recoverabledaily maximum≤ .042 mg/Lall year009
Copper, total recoverablemonthly average≤ 70 lb/dall year009
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year009
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year009
Mercury, total recoverabledaily maximum≤ 7.3 ng/Lall year009
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year010
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year010
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year012
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year012
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall year014
Polyramannual maximumreport only (ug/L)all year014
Flow, in conduit or thru treatment plantannual averagereport only (MGD)all year014
Flow, in conduit or thru treatment plantannual maximumreport only (MGD)all year014
Mercury, total recoverablequarterly maximumreport only (ng/L)all year101
Solids, total suspendedmonthly average≤ 19 lb/dall year103
Solids, total suspendeddaily maximum≤ 63 lb/dall year103
Oil and grease, hexane extr methodmonthly average≤ 9.4 lb/dall year103
Oil and grease, hexane extr methoddaily maximum≤ 13 lb/dall year103
Solids, total suspendeddaily maximum≤ 50 mg/Lall year104
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)all year104
Flow, in conduit or thru treatment plantquarterly maximumreport only (MGD)all year104
Solids, total suspendedquarterly averagereport only (mg/L)all year105
Solids, total suspendedquarterly maximumreport only (mg/L)all year105
Oil and grease, hexane extr methodquarterly maximumreport only (mg/L)all year105
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year105
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year105
Solids, total suspendedquarterly averagereport only (mg/L)all year106
Solids, total suspendedquarterly maximumreport only (mg/L)all year106
Oil and grease, hexane extr methodquarterly maximumreport only (mg/L)all year106
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year106
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year106
Solids, total suspendedmonthly average≤ 30 mg/Lall year107
Solids, total suspendeddaily maximum≤ 100 mg/Lall year107
Oil and grease, hexane extr methodmonthly average≤ 15 mg/Lall year107
Oil and grease, hexane extr methoddaily maximum≤ 20 mg/Lall year107
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year107
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year107
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year108
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year108
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year702
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year702
pHmonthly maximumreport only (SU)all year709
Arsenic, total recoverablemonthly maximumreport only (ug/L)all year709
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year709
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year709
Mercury, total recoverablequarterly maximumreport only (ng/L)all year709

How strict are these limits?

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

Same industry: the 17 Electric Services permits in Wisconsin.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WI0001589 · MCP: https://passage-data.com/mcp