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Grassland Dairy Products, Inc.

Creamery Butter, Greenwood, Wisconsin. NPDES permit WI0002984 expired Jun 30, 2023; its limits still apply. Last 12 months: over a limit once (last May 2026), 34 required values missing, 16 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 002 form A monthly (12 values), outfall 002 form Q quarterly (1 value), outfall 701 form A monthly (4 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 5 required values missing, 18 of 28 reports late

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

Period endingParameterReportedLimitOver by
May 2026BOD, 5-day, 20 deg. C, daily maximum89.42≤ 82.6 lb/d8%

Limits in force (17)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
BOD, 5-day, 20 deg. Cmonthly average≤ 82.6 lb/dall year002
BOD, 5-day, 20 deg. Cdaily maximum≤ 82.6 lb/dall year002
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 186.6 lb/dall year002
Solids, total suspendeddaily maximum≤ 464.6 lb/dall year002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]rolling average≤ 1 mg/Lall year002
Chloride [as Cl]quarterly maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Coliform, fecal generalgeometric mean≤ 400 #/100mLMay–Sep002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year701
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year701
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 75 Food and Kindred 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/WI0002984 · MCP: https://passage-data.com/mcp