COULEE DAM, TOWN OF

NPDES permit WA0020281 · Minor POTW · administratively continued, expires 2022-11-30 · 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 2022-11-30 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

0values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among WA permits in EPA's filings — check your permit).

Limits in force (34)

OutfallParameterStatisticLimitMonths
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 <= 48.8 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 73.1 lb/d all year
001BOD, 5-day, 20 deg. CMO 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 <= 125 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 187 lb/d all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 48.8 lb/d all year
001Solids, total suspendedWKLY AVG <= 73.1 lb/d all year
001Solids, total suspendedMO AVG 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 <= 125 lb/d all year
001Solids, total suspendedWKLY AVG <= 187 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]WKLY AVG report only all year
001Fecal coliform, MPN, EC med, 44.5 CGEO MEAN <= 50 #/100mL all year
001Floating solids, waste or visible foam-visualMO MAX <= 0 N=0;Y=1 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 residualMO AVG <= .5 mg/L all year
001Chlorine, total residualWKLY AVG <= .75 mg/L all year
001Chlorine, total residualMO AVG <= 2.1 lb/d all year
001Chlorine, total residualWKLY AVG <= 3.1 lb/d all year
001EnterococciGEO MEAN <= 16 #/100mL all year
001EnterococciINST MAX <= 75 #/100mL all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 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