Passage Data · Check a report · Use it from your AI

Rahr Malting Co.

Malt, Shakopee, Minnesota. NPDES permit MN0031917 expired Jan 31, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D004 form A1 monthly (8 values), outfall D005 form A1 monthly (28 values), outfall D005 form A2 monthly (2 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 36 reports late

Limits in force (51)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly minimumreport only (deg C)all yearD004
Temperature, water deg. centigrademonthly averagereport only (deg C)all yearD004
Temperature, water deg. centigrademonthly maximum≤ 30 deg Call yearD004
pHmonthly minimum≥ 6 SUall yearD004
pHmonthly maximum≤ 9 SUall yearD004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD004
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD004
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD004
Temperature, water deg. centigrademonthly minimumreport only (deg C)all yearD005
Temperature, water deg. centigrademonthly averagereport only (deg C)all yearD005
Temperature, water deg. centigrademonthly maximumreport only (deg C)all yearD005
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LApr–NovD005
Oxygen, dissolved [DO]minimum weekly average≥ 7 mg/LJan, Feb, Mar, DecD005
pHmonthly minimum≥ 6 SUall yearD005
pHmonthly maximum≤ 9 SUall yearD005
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD005
Solids, total suspendedmonthly maximum≤ 45 mg/Lall yearD005
Solids, total suspendedmonthly average≤ 170 kg/dall yearD005
Solids, total suspendedmonthly maximum≤ 426 kg/dall yearD005
Nitrogen, total [as N]monthly averagereport only (mg/L)all yearD005
Nitrogen, total [as N]monthly averagereport only (kg/d)all yearD005
Nitrogen, ammonia total [as N]monthly average≤ 12 mg/LJunD005
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, DecD005
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/LOctD005
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/LMayD005
Nitrogen, ammonia total [as N]monthly average≤ 7 mg/LNovD005
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LJul–SepD005
Nitrogen, ammonia total [as N]monthly average≤ 68 kg/dJunD005
Nitrogen, ammonia total [as N]monthly averagereport only (kg/d)Jan, Feb, Mar, Apr, DecD005
Nitrogen, ammonia total [as N]monthly average≤ 28 kg/dOctD005
Nitrogen, ammonia total [as N]monthly average≤ 51 kg/dMayD005
Nitrogen, ammonia total [as N]monthly average≤ 40 kg/dNovD005
Nitrogen, ammonia total [as N]monthly average≤ 11 kg/dJul–SepD005
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearD005
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (kg/d)all yearD005
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearD005
Nitrite + Nitrate total [as N]monthly averagereport only (kg/d)all yearD005
Phosphorus, total [as P]monthly average≤ 1 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, DecD005
Phosphorus, total [as P]monthly average≤ 1 mg/LJun–SepD005
Phosphorus, total [as P]monthly average≤ 11 kg/dJan, Feb, Mar, Apr, May, Oct, Nov, DecD005
Phosphorus, total [as P]monthly average≤ 10.2 kg/dJun–SepD005
Phosphorus, total [as P]annual total≤ 3329 kg/yrall yearD005
Sulfate, total [as SO4]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD005
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD005
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD005
Solids, total dissolvedmonthly averagereport only (mg/L)Mar, SepD005
BOD, carbonaceous [5 day, 20 C]monthly average≤ 12 mg/Lall yearD005
BOD, carbonaceous [5 day, 20 C]monthly maximum≤ 18 mg/Lall yearD005
BOD, carbonaceous [5 day, 20 C]monthly average≤ 96.5 kg/dall yearD005
BOD, carbonaceous [5 day, 20 C]monthly maximum≤ 170 kg/dall yearD005

How strict are these limits?

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

Same industry: the 28 Food and Kindred Products permits in Minnesota.

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MN0031917 · MCP: https://passage-data.com/mcp