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BNSF Railway Company

Railroads, Line-Haul Operating, Whitefish, Montana. NPDES permit MT0000019 expired Sep 30, 2023; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (25 values), form S twice a year, form Y yearly, form YW yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 16 reports late

Limits in force (47)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily minimumreport only (deg F)all year
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Flow ratemonthly averagereport only (MGD)all year
Flow ratedaily maximumreport only (MGD)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 16 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 98 lb/dall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendeddaily maximum≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 16 lb/dall year
Solids, total suspendeddaily maximum≤ 98 lb/dall year
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year
Nitrogen, total [as N]monthly averagereport only (mg/L)Jul–Sep
Nitrogen, total [as N]daily maximumreport only (mg/L)Jul–Sep
Nitrogen, total [as N]monthly averagereport only (lb/d)Jul–Sep
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jul–Sep
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Jul–Sep
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year
Phosphorus, total [as P]monthly average≤ .6 lb/dall year
Cyanide, total [as CN]single grab samplereport only (ug/L)all year
Arsenic, total recoverablevaluereport only (ug/L)all year
Iron, total recoverablevaluereport only (ug/L)all year
Selenium, total recoverablevaluereport only (ug/L)all year
Thallium, total recoverablevaluereport only (ug/L)all year
Beryllium, total recoverable [as Be]valuereport only (ug/L)all year
Barium, total recoverablevaluereport only (ug/L)all year
Nickel, total recoverablevaluereport only (ug/L)all year
Silver total recoverablevaluereport only (ug/L)all year
Zinc, total recoverablevaluereport only (ug/L)all year
Aluminum, dissolved [as Al]valuereport only (ug/L)all year
Cadmium, total recoverablemonthly averagereport only (ug/L)all year
Cadmium, total recoverabledaily maximum≤ 1.8 ug/Lall year
Lead, total recoverablevaluereport only (ug/L)all year
Chromium, total recoverablevaluereport only (ug/L)all year
Copper, total recoverablevaluereport only (ug/L)all year
Antimony, total recoverablevaluereport only (ug/L)all year
Polychlorinated biphenyls [PCBs]single grab samplereport only (ug/L)all year
Phenolssingle grab samplereport only (ug/L)all year
Durationvaluereport only (d/mo)all year
Volatile Organic Compound [VOC]single grab samplereport only (ug/L)all year
Mercury, total recoverablevaluereport only (ug/L)all year
Base neutrals & acid [Method 625], efflntsingle grab samplereport only (ug/L)all year
Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiavalue≤ 0 pass=0;fail=1all year
Pass/Fail Static Renewal 96Hr Acute Pimephales Promelasvalue≤ 0 pass=0;fail=1all year

How strict are these limits?

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

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/MT0000019 · MCP: https://passage-data.com/mcp