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Sappi Cloquet LLC

Pulp Mills, Cloquet, Minnesota. NPDES permit MN0001431, in force until Jul 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D059 form A1 monthly (7 values), outfall D060 form A1 monthly (7 values), outfall D061 form A1 monthly (9 values), outfall D067 form A1 monthly (5 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 60 reports late

Limits in force (28)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall yearD059
pHinstantaneous maximum≤ 9 SUall yearD059
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD059
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearD059
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD059
Chlorine, total residualdaily maximum≤ .1 mg/Lall yearD059
Duration of dischargemonthly totalreport only (d/mo)all yearD059
pHinstantaneous minimum≥ 6 SUall yearD060
pHinstantaneous maximum≤ 9 SUall yearD060
Oxidants, total residualdaily maximumreport only (mg/L)all yearD060
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD060
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearD060
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD060
Duration of dischargemonthly totalreport only (d/mo)all yearD060
pHinstantaneous minimum≥ 6 SUall yearD061
pHinstantaneous maximum≤ 9 SUall yearD061
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD061
Sulfate, total [as SO4]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD061
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD061
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearD061
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD061
Chlorine, total residualdaily maximum≤ .1 mg/Lall yearD061
Duration of dischargemonthly totalreport only (d/mo)all yearD061
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD067
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearD067
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD067
Chlorine, total residualdaily maximum≤ .038 mg/Lall yearD067
Duration of dischargemonthly totalreport only (d/mo)all yearD067

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MN0001431 · MCP: https://passage-data.com/mcp