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Railroads, Line-Haul Operating, Proctor, Minnesota. NPDES permit MN0000361 expired Aug 31, 2026; its limits still apply. Last 12 months: over a limit 7 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D001 form A1 monthly (6 values), outfall D002 form A1 monthly (7 values), outfall D003 form A1 monthly (8 values), outfall D004 form A1 monthly (6 values), outfall D005 form A1 monthly (9 values), outfall W006 form A1 quarterly (1 value)
Last report on file
September 2026
Oct 2024 – Sep 2025
9 values over a limit, 0 required values missing, 0 of 64 reports late

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

Period endingOutfallParameterReportedLimitOver by
March 2026D002Solids, total suspended, daily maximum67≤ 30 mg/L123%
March 2026D004Solids, total suspended, daily maximum204≤ 30 mg/L580%
April 2026D004Solids, total suspended, daily maximum61≤ 30 mg/L103%
April 2026D005Solids, total suspended, daily maximum394≤ 30 mg/L1213%
July 2026D002Solids, total suspended, daily maximum74≤ 30 mg/L147%
July 2026D004Solids, total suspended, daily maximum200≤ 30 mg/L567%
July 2026D005Solids, total suspended, daily maximum172≤ 30 mg/L473%

Limits in force (37)

ParameterStatisticLimitMonthsOutfall
Precipitation, total defined period/inmonthly totalreport only (in)all yearD001
pHinstantaneous minimum≥ 6 SUall yearD001
pHinstantaneous maximum≤ 9 SUall yearD001
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearD001
Diesel range organics diesel, total, wtrdaily maximum≤ 5514 ug/Lall yearD001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD001
Precipitation, total defined period/inmonthly totalreport only (in)all yearD002
pHinstantaneous minimum≥ 6 SUall yearD002
pHinstantaneous maximum≤ 9 SUall yearD002
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearD002
Lead, total [as Pb]daily maximumreport only (ug/L)all yearD002
Diesel range organics diesel, total, wtrdaily maximum≤ 5514 ug/Lall yearD002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD002
pHinstantaneous minimum≥ 6 SUall yearD003
pHinstantaneous maximum≤ 9 SUall yearD003
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearD003
Lead, total [as Pb]daily maximumreport only (ug/L)all yearD003
Polynuclear Aromatic Hydrocarbons [PAHs]daily maximumreport only (ug/L)all yearD003
Diesel range organics diesel, total, wtrdaily maximum≤ 5514 ug/Lall yearD003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD003
Mercury, total [as Hg]daily maximumreport only (ng/L)all yearD003
pHinstantaneous minimum≥ 6 SUall yearD004
pHinstantaneous maximum≤ 9 SUall yearD004
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearD004
Lead, total [as Pb]daily maximumreport only (ug/L)all yearD004
Diesel range organics diesel, total, wtrdaily maximum≤ 5514 ug/Lall yearD004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD004
pHinstantaneous minimum≥ 6 SUall yearD005
pHinstantaneous maximum≤ 9 SUall yearD005
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearD005
Arsenic, total [as As]daily maximumreport only (ug/L)all yearD005
Lead, total [as Pb]daily maximumreport only (ug/L)all yearD005
Silver, total [as Ag]daily maximumreport only (ug/L)all yearD005
Diesel range organics diesel, total, wtrdaily maximum≤ 5514 ug/Lall yearD005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD005
Mercury, dissolved [as Hg]daily maximumreport only (ng/L)all yearD005
Hardness, Ca Mg Calculated [mg/L as CaCO3]quarterly maximumreport only (mg/L)all yearW006

How strict are these limits?

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

Same industry: the 3 Railroad Transportation permits in Minnesota.

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Your permit document is the final word. As JSON: /api/v1/permits/MN0000361 · MCP: https://passage-data.com/mcp