CITY OF WHITEFISH

NPDES permit MT0020184 · Major POTW · administratively continued, expires 2020-07-31 · EPA's file as of 2026-09-19

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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 2020-07-31 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

2values over a limit
0required values missing, on 0 form(s)
0of 15 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (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 (52)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only Jul, Aug, Sep
001Temperature, water deg. fahrenheitDAILY MX report only Jul, Aug, Sep
001Temperature, water deg. fahrenheitMO AVG report only Jul, Aug, Sep
001Temperature, water deg. fahrenheitDAILY MX report only Jul, Aug, Sep
001Flow rateDAILY AV report only all year
001Flow rateDAILY MX report only all year
001Oxygen, dissolved [DO]SINGSAMP report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 313 lb/d all year
001BOD, 5-day, 20 deg. CMX WK AV <= 676 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CMX WK AV report only all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 313 lb/d all year
001Solids, total suspendedMX WK AV <= 676 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMX WK AV report only all year
001Oil and grease, hexane extr methodSINGSAMP report only Jun, Dec
001Nitrogen, total [as N]MO AVG report only Jul, Aug, Sep
001Nitrogen, total [as N]MO AVG report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Nitrogen, total [as N]MAXIMUM report only Jul, Aug, Sep
001Nitrogen, total [as N]WKLY MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Nitrogen, total [as N]MO AVG <= 176 lb/d Jul, Aug, Sep
001Nitrogen, total [as N]MO AVG <= 273 lb/d Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Nitrogen, total [as N]WKLY MAX report only Jul, Aug, Sep
001Nitrogen, total [as N]WKLY MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 9.6 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 17.7 mg/L all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MAXIMUM report only all year
001Phosphorus, total [as P]MINIMUM report only all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus, total [as P]MO AVG <= 10.4 lb/d all year
001Aluminum, dissolved [as Al]MO AVG <= 113 ug/L all year
001Aluminum, dissolved [as Al]DAILY MX <= 325 ug/L all year
001E. coli, MTEC-MFMO GEO <= 630 CFU/100mL Jan, Feb, Mar, Nov, Dec
001E. coli, MTEC-MFMO GEO <= 126 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFMAXIMUM <= 1260 CFU/100mL Jan, Feb, Mar, Nov, Dec
001E. coli, MTEC-MFMAXIMUM <= 252 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualMO AVG <= .1 mg/L all year
001Chlorine, total residualMAXIMUM <= .1 mg/L all year
001BOD, 5-day, percent removalMO MIN >= 85 % all year
001Solids, suspended percent removalMO MIN >= 85 % all year
001Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE <= 0 pass=0;fail=1 all year
001Pass/Fail Static Renewal 7Day Chronic 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