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NPDES permit WA0024961 · Minor NON-POTW · effective, expires 2031-01-31 · 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

0values over a limit
2required values missing, on 2 form(s)
0of 30 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 (19)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX <= 16 deg C all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
001Arsenic, total [as As]DAILY MX report only (alert) all year
001Chromium, total [as Cr]DAILY MX <= .2 mg/L all year
001Chlorine, total residualDAILY MX <= .2 mg/L all year
001Chlorine, free availableDAILY MX <= .2 mg/L all year
001pH, maximumDAILY MX <= 9 SU (alert) all year
001pH, minimumDAILY MN >= 6 SU (alert) all year
001FlowDAILY MX report only (alert) all year
001FlowMO AVG report only (alert) all year
001Daily excursion time [min]MO TOTAL <= 446 min all year
002BpHSingle Rdg report only (alert) all year
002BChloride [as Cl]Single Rdg report only (alert) all year
002BCopper, total [as Cu]Single Rdg report only (alert) all year
002BIron, total [as Fe]Single Rdg report only (alert) all year
002BZinc, total [as Zn]Single Rdg report only (alert) all year
002BFree Oil Visual SheenSingle Rdg report only (alert) all year
PRODProduction, total, megawattsMO AVG report only (alert) 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