GLACIER NATIONAL PARK

NPDES permit MT0030601 · Minor FEDERAL · administratively continued, expires 2016-12-31 · 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 2016-12-31 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

1values over a limit
0required values missing, on 0 form(s)
0of 13 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, total [as N] (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (34)

OutfallParameterStatisticLimitMonths
001Flow rateDAILY AV report only all year
001Flow rateDAILY MX report only all year
001BOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. C7 DA AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. C30DA AVG <= 50 lb/d all year
001BOD, 5-day, 20 deg. C7 DA AVG <= 75 lb/d all year
001BOD, 5-day, 20 deg. C30DA AVG report only all year
001BOD, 5-day, 20 deg. C7 DA AVG report only all year
001BOD, 5-day, 20 deg. C30DA AVG report only all year
001BOD, 5-day, 20 deg. C7 DA AVG report only all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspended7 DA AVG <= 45 mg/L all year
001Solids, total suspended30DA AVG <= 50 lb/d all year
001Solids, total suspended7 DA AVG <= 75 lb/d all year
001Solids, total suspended30DA AVG report only all year
001Solids, total suspended7 DA AVG report only all year
001Solids, total suspended30DA AVG report only all year
001Solids, total suspended7 DA AVG report only all year
001Oil and grease, hexane extr methodSINGGRAB report only all year
001Nitrogen, total [as N]30DA AVG <= 7 mg/L all year
001Nitrogen, total [as N]30DA AVG <= 11.7 lb/d all year
001Nitrogen, ammonia total [as N]30DA AVG <= 3 mg/L all year
001Nitrogen, ammonia total [as N]30DA AVG <= 5 lb/d all year
001Nitrogen, Kjeldahl, total [as N]SINGGRAB report only all year
001Nitrite + Nitrate total [as N]SINGGRAB report only all year
001Phosphorus, total [as P]30DA AVG <= .7 mg/L all year
001Phosphorus, total [as P]30DA AVG <= 1.2 lb/d all year
001E. coliMOAV GEO <= 32 CFU/100mL all year
001E. coliWE <= 64 CFU/100mL all year
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001Oil and grease visualVALUE report only 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