BNSF RAILWAY COMPANY

NPDES permit MT0000388 · Minor NON-POTW · administratively continued, expires 2025-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2025-02-28 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

7values over a limit
0required values missing, on 0 form(s)
0of 16 forms filed late

Last period with anything received: 2026-07-31. Most often over: Pass/Fail Static 48Hr Acute Ceriodaphnia dubia (2), Zinc, total recoverable (2), Copper, total recoverable (2).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MT permits in EPA's filings — check your permit).

Limits in force (21)

OutfallParameterStatisticLimitMonths
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 9.6 lb/d all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Phosphorus, total [as P]MO AVG report only all year
001Zinc, total recoverableMO AVG <= 19.8 ug/L all year
001Zinc, total recoverableDAILY MX <= 57.5 ug/L all year
001Cadmium, total recoverableMO AVG <= .5 ug/L all year
001Cadmium, total recoverableDAILY MX <= 1.5 ug/L all year
001Copper, total recoverableMO AVG <= 2.3 ug/L all year
001Copper, total recoverableDAILY MX <= 6.2 ug/L all year
001BenzeneMO AVG report only all year
001BenzeneDAILY MX report only all year
001Duration of dischargeVALUE report only all year
001Report due [yrmoda]VALUE <= 1 abst=0;prst=1 all year
001Pass/Fail Static 48Hr Acute Ceriodaphnia dubiaVALUE <= 0 pass=0;fail=1 all year
001Pass/Fail Static Renewal 96Hr Acute Pimephales PromelasVALUE <= 0 pass=0;fail=1 all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states