Dubois, Town of

NPDES permit WY0020834 · Minor POTW · effective, expires 2029-03-31 · 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.

EPA's record, 2025-09-01 to 2026-08-31

6values over a limit
11required values missing, on 1 form(s)
4of 14 forms filed late

Last period with anything received: 2026-06-30. Most often over: BOD, 5-day, 20 deg. C (3), BOD, 5-day, percent removal (2), Solids, total suspended (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 (28)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX 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. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 100 mg/L all year
001Solids, total suspendedWKLY AVG <= 150 mg/L all year
001Solids, total suspendedDAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphate, ortho [as P]DAILY MX report only all year
001DurationMO TOTAL report only all year
001Chlorine, total residualDAILY MX <= 1.23 mg/L May, Jun, Jul, Aug, Sep
001Chlorine, total residualDAILY MX <= 1 mg/L Jan, Feb, Mar, Apr, Oct, Nov, Dec
001E. coliMO GEOMN <= 55713 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
001E. coliMO GEOMN <= 11919 #/100mL May, Jun, Jul, Aug, Sep
001E. coliDAILY MX <= 55713 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
001E. coliDAILY MX <= 24156 #/100mL May, Jun, Jul, Aug, Sep
001FlowMO AVG <= .4 MGD all year
001FlowDAILY MX report only all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Produced water, oil and greaseDAILY MX <= 10 mg/L 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