SQUAXIN ISLAND TRIBE

NPDES permit WA0037320 · Minor NON-POTW · effective, expires 2027-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

1values over a limit
0required values missing, on 0 form(s)
9of 33 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (1).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (50)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO AVG report only all year
001Oxygen, dissolved [DO]WKLY AVG 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
001pHINST MIN >= 7 SU all year
001pHINST MAX <= 8.5 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedMO AVG <= 49.7 lb/d all year
001Solids, total suspendedWKLY AVG <= 160.5 lb/d all year
001Oil and greaseMO AVG <= .7 lb/d all year
001Oil and greaseWKLY AVG <= 1.7 lb/d all year
001Fecal coliform, MPN, EC med, 44.5 CMO AVG report only all year
001Fecal coliform, MPN, EC med, 44.5 CDAILY MX report only 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 report only all year
001Chlorine, total residualDAILY MX report only all year
001Chlorine, total residualMO AVG <= 8.4 ug/L all year
001Chlorine, total residualDAILY MX <= 12.3 ug/L all year
001EnterococciMO AVG report only all year
001EnterococciDAILY MX report only all year
002pHINST MIN >= 7 SU all year
002pHINST MAX <= 8.5 SU all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedWKLY AVG report only all year
002Fecal coliform, MPN, EC med, 44.5 CMO AVG report only all year
002Fecal coliform, MPN, EC med, 44.5 CDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002EnterococciMO AVG report only all year
002EnterococciDAILY MX report only all year
002Turbidity, lab, NTUMO AVG report only all year
002Turbidity, lab, NTUDAILY MX report only all year
003Temperature, water deg. centigradeMO AVG report only all year
003Temperature, water deg. centigradeDAILY MX report only all year
003Oxygen, dissolved [DO]MO AVG report only all year
003Oxygen, dissolved [DO]WKLY AVG report only all year
003pHINST MIN >= 7 SU all year
003pHINST MAX <= 8.5 SU all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedWKLY AVG report only all year
003Fecal coliform, MPN, EC med, 44.5 CMO AVG report only all year
003Fecal coliform, MPN, EC med, 44.5 CDAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003EnterococciMO AVG report only all year
003EnterococciDAILY MX report only all year
003Turbidity, lab, NTUMO AVG report only all year
003Turbidity, lab, NTUDAILY MX report only 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