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Neenah Paper Inc Neenah Mill

Paper Mills, major discharger, Neenah, Wisconsin. NPDES permit WI0037842 expired Jun 30, 2022; its limits still apply. Last 12 months: no values over a limit, 36 required values missing, 6 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (16 values), outfall 001 form Q quarterly (1 value), outfall 701 form A monthly (2 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 6 required values missing, 16 of 28 reports late

Limits in force (19)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 916 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 1742 lb/dall year001
pHdaily minimum≥ 4 SUall year001
pHdaily maximum≤ 11 SUall year001
Solids, total suspendedmonthly average≤ 334 lb/dall year001
Solids, total suspendeddaily maximum≤ 1091 lb/dall year001
Phosphorus, total [as P]rolling average≤ 1 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 14.5 lb/dall year001
Copper, total recoverablemonthly average≤ 72 ug/Lall year001
Copper, total recoverabledaily maximum≤ 72 ug/Lall year001
Copper, total recoverablemonthly averagereport only (lb/d)all year001
Copper, total recoverabledaily maximum≤ 1.76 lb/dall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Mercury, total recoverablequarterly maximumreport only (ng/L)all year001
pH range excursions, > 60 minutesmonthly total≤ 0 occur/dall year001
pH range excursions, monthly total accummonthly total≤ 446 minall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year701
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year701

How strict are these limits?

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

Same industry: the 22 Paper and Allied Products 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/WI0037842 · MCP: https://passage-data.com/mcp