CITY OF CHOTEAU

NPDES permit MT0020052 · Minor POTW · administratively continued, expires 2026-08-31 · 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 2026-08-31 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

0values over a limit
2required values missing, on 1 form(s)
0of 26 forms filed late

Last period with anything received: 2026-08-31.

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 (42)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001Flow rateDAILY MN report only all year
001Flow rateDAILY MX report only all year
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CWKLY MAX <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 120 lb/d all year
001BOD, 5-day, 20 deg. CWKLY MAX <= 180 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001pHDAILY MN report only all year
001pHDAILY MX report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY MAX <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 120 lb/d all year
001Solids, total suspendedWKLY MAX <= 180 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Oil & GreaseMO MAX <= 10 mg/L all year
001Oil & GreaseMO MAX <= 10 mg/L all year
001Nitrogen, total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrogen, total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrogen, total [as N]DAILY MX report only Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only Jun, Jul, Aug, Sep
001Nitrite + Nitrate total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jun, Jul, Aug, Sep
001E. coli, MTEC-MFMOAV GEO <= 126 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFMOAV GEO <= 630 #/100mL Jan, Feb, Mar, Nov, Dec
001E. coli, MTEC-MFMV <= 252 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFMV <= 1260 #/100mL Jan, Feb, Mar, Nov, Dec
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