CITY OF CUT BANK

NPDES permit MT0020141 · Minor POTW · administratively continued, expires 2017-02-28 · 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 2017-02-28 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

11values over a limit
0required values missing, on 0 form(s)
2of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (11).

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 (42)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitVALUE report only all year
001Flow rate30DA AVG report only all year
001Flow rateVALUE 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. CMX 7D AV <= 45 mg/L all year
001BOD, 5-day, 20 deg. C30DA AVG <= 161 lb/d all year
001BOD, 5-day, 20 deg. C7 DA AVG <= 241 lb/d all year
001pHINST MIN >= 7.7 SU all year
001pHVALUE report only all year
001pHINST MAX <= 8.8 SU all year
001Solids, total suspended30DA AVG <= 100 mg/L all year
001Solids, total suspendedMX 7D AV <= 135 mg/L all year
001Solids, total suspended30DA AVG <= 536 lb/d all year
001Solids, total suspendedMX 7D AV <= 724 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Nitrogen, total [as N]30DA AVG <= 19 mg/L all year
001Nitrogen, total [as N]MX 7D AV <= 32.6 mg/L all year
001Nitrogen, total [as N]30DA AVG <= 101.9 lb/d all year
001Nitrogen, total [as N]MX 7D AV <= 174.8 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 1 mg/L all year
001Nitrogen, ammonia total [as N]VALUE report only all year
001Nitrogen, ammonia total [as N]MX WK AV <= 2 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 5.4 lb/d all year
001Nitrogen, ammonia total [as N]MX WK AV <= 10.7 lb/d all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]MX 7D AV report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG <= 5.9 mg/L all year
001Phosphorus, total [as P]MX WK AV <= 9 mg/L all year
001Phosphorus, total [as P]MO AVG <= 31.6 lb/d all year
001Phosphorus, total [as P]MX WK AV <= 48.3 lb/d all year
001E. coli, MTEC-MF30DA GEO <= 126 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MF30DA GEO <= 630 CFU/100mL Jan, Feb, Mar, Nov, Dec
001E. coli, MTEC-MF7 DA GEO <= 252 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MF7 DA GEO <= 1260 CFU/100mL Jan, Feb, Mar, Nov, Dec
001Chlorine, total residualDAILY MX <= .11 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only 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