SWINOMISH RESERVATION SWR DIST

NPDES permit WA0024422 · Minor POTW · administratively continued, expires 2017-06-30 · 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 2017-06-30 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

0values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (29)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO MAX 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 <= 57 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 85 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Alkalinity, total [as CaCO3]ANNL MAX 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 <= 57 lb/d all year
001Solids, total suspendedWKLY AVG <= 85 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]QB report only all year
001Fecal coliform, MPN, EC med, 44.5 CMO GEO <= 200 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
001Fecal coliform, MPN, EC med, 44.5 CMO GEO <= 200 #/100mL May, Jun, Jul, Aug, Sep
001Fecal coliform, MPN, EC med, 44.5 CWB <= 400 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
001Fecal coliform, MPN, EC med, 44.5 CWB <= 400 #/100mL May, Jun, Jul, Aug, Sep
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 plantMO MAX report only all year
001Chlorine, total residualMO AVG <= .05 mg/L all year
001Chlorine, total residualDAILY MX <= .14 mg/L all year
001Chlorine, total residualMO AVG <= .095 lb/d all year
001Chlorine, total residualDAILY MX <= .265 lb/d all year
001BOD, 5-day, percent removalMN % RMV >= 85 % all year
001Solids, suspended percent removalMN % RMV >= 85 % all year
001Oil and grease visualMO MAX <= 0 N=0;Y=1 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