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Kraemer Mining Materials Inc

Crushed And Broken Granite, Onamia, Minnesota. NPDES permit MN0067806, in force until Jul 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D001 form A1 monthly (16 values), outfall D001 form A2 monthly (2 values), outfall W002 form A1 monthly (4 values), outfall W003 form A1 monthly (4 values)
Renewal application due
Feb 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 48 reports late

Limits in force (26)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly maximumreport only (deg C)all yearD001
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearD001
pHmonthly minimum≥ 6 SUall yearD001
pHmonthly maximum≤ 9 SUall yearD001
Solids, total volatilemonthly averagereport only (mg/L)all yearD001
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD001
Solids, total suspendeddaily maximum≤ 60 mg/Lall yearD001
Solids, total suspendedyear-to-date totalreport only (kg/yr)all yearD001
Nitrogen, total [as N]monthly averagereport only (mg/L)all yearD001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearD001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearD001
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD001
Phosphorus, total [as P]annual totalreport only (kg/yr)all yearD001
Oil and greasedaily maximum≤ 5 mg/Lall yearD001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD001
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD001
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD001
Solids, total dissolvedmonthly averagereport only (mg/L)all yearD001
Temperature, water deg. centigrademonthly maximumreport only (deg C)all yearW002
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearW002
pHmonthly minimumreport only (SU)all yearW002
pHmonthly maximumreport only (SU)all yearW002
Temperature, water deg. centigrademonthly maximumreport only (deg C)all yearW003
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearW003
pHmonthly minimumreport only (SU)all yearW003
pHmonthly maximumreport only (SU)all yearW003

How strict are these limits?

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

Same industry: the 13 Mining and Quarrying of Nonmetallic Minerals permits in Minnesota.

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MN0067806 · MCP: https://passage-data.com/mcp