Wilmot, City of

NPDES permit AR0050989 · Minor POTW · administratively continued, expires 2026-03-31 · 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.

This permit expired on 2026-03-31 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
46required values missing, on 2 form(s)
9of 12 forms filed late

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

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (25)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 2 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. C7 DA AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 41 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 10.5 SU all year
001Solids, total suspendedMO AVG <= 90 mg/L all year
001Solids, total suspended7 DA AVG <= 135 mg/L all year
001Solids, total suspendedMO AVG <= 123.9 lb/d all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]7 DA AVG report only all year
001Chloride [as Cl]MO AVG <= 73 lb/d all year
001Sulfate, total [as SO4]MO AVG report only all year
001Sulfate, total [as SO4]7 DA AVG report only all year
001Sulfate, total [as SO4]MO AVG <= 56.5 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualINST MAX report only all year
001Solids, total dissolvedMO AVG report only all year
001Solids, total dissolved7 DA AVG report only all year
001Solids, total dissolvedMO AVG <= 446.2 lb/d all year
001Coliform, fecal generalMO AVG <= 200 #/100mL May, Jun, Jul, Aug, Sep
001Coliform, fecal generalMO AVG <= 1000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
001Coliform, fecal general7 DA AVG <= 400 #/100mL May, Jun, Jul, Aug, Sep
001Coliform, fecal general7 DA AVG <= 2000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec

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