U.S. Army Corps of Engineers, Seattle District

NPDES permit ID0028584 · Minor FEDERAL · effective, expires 2029-07-31 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: Oil & Grease (2).

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among ID permits in EPA's filings — check your permit).

Limits in force (65)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only Sep
001Temperature, water deg. centigradeMO AVG report only Sep
001Temperature, water deg. centigradeDAILY MN report only Sep
001Temperature, water deg. centigradeDAILY MX report only Sep
001Temperature, water deg. centigradeMO AVG report only Sep
001pHINST MIN report only all year
001pHINST MAX report only all year
001pHINST MIN report only all year
001pHINST MAX report only all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001pHINST MIN >= 6.5 SU Sep
001pHINST MAX <= 8.5 SU Sep
001pHINST MIN >= 6.5 SU Sep
001pHINST MAX <= 8.5 SU Sep
001Solids, total suspendedDAILY MX report only Sep
001Solids, total suspendedMO AVG report only Sep
001Solids, total suspendedDAILY MX report only Sep
001Solids, total suspendedMO AVG report only Sep
001Oil & GreaseDAILY MX <= 5 mg/L all year
001Oil & GreaseDAILY MX <= 5 mg/L all year
001Oil & GreaseDAILY MX <= 5 mg/L all year
001Oil & GreaseDAILY MX <= 5 mg/L all year
001Oil & GreaseDAILY MX <= 5 mg/L all year
001Oil & GreaseDAILY MX <= 5 mg/L Sep
001Polychlorinated biphenyls [PCBs]DAILY MX report only Jul, Dec
001Polychlorinated biphenyls [PCBs]DAILY MX report only Sep
001Chlorine, total residualDAILY MX report only all year
001Chlorine, total residualDAILY MX report only Sep
001Chlorine, total residualMO AVG report only Sep
001Flow, in conduit or thru treatment plantDAILY 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
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY 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
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY 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 Sep
001Flow, in conduit or thru treatment plantMO AVG report only Sep
001Flow, in conduit or thru treatment plantDAILY MN report only Sep
001Flow, in conduit or thru treatment plantDAILY MX report only Sep
001Flow, in conduit or thru treatment plantMO AVG report only Sep

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