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NPDES permit MT0031879 · Minor NON-POTW · administratively continued, expires 2021-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2021-06-30 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

6values over a limit
0required values missing, on 0 form(s)
3of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrite + Nitrate total [as N] (4), E. coli, MTEC-MF (2).

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 (37)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeMO MAX report only all year
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001Flow rateMO AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 4.5 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHVALUE report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 4.5 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]MO AVG report only Jul, Aug, Sep
001Nitrogen, total [as N]MO AVG <= 2.25 lb/d Jul, Aug, Sep
001Nitrogen, total [as N]VALUE report only Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]WKLY AVG report only all year
001Nitrogen, ammonia total [as N]VALUE report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only Jul, Aug, Sep
001Nitrogen, Kjeldahl, total [as N]VALUE report only Jul, Aug, Sep
001Nitrite + Nitrate total [as N]MO AVG <= 10 mg/L all year
001Nitrite + Nitrate total [as N]DAILY MX <= 10 mg/L all year
001Nitrite + Nitrate total [as N]VALUE report only all year
001Phosphorus, total [as P]MO AVG report only Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG <= .3 lb/d Jul, Aug, Sep
001Phosphorus, total [as P]VALUE report only Jul, Aug, Sep
001E. coli, MTEC-MFMOAV GEO <= 630 CFU/100mL Jan, Feb, Mar, Nov, Dec
001E. coli, MTEC-MFMOAV GEO <= 126 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFWE <= 1260 CFU/100mL Jan, Feb, Mar, Nov, Dec
001E. coli, MTEC-MFWE <= 252 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % 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