Project Macoma

NPDES permit WA0991051 · Minor NON-POTW · effective, expires 2028-11-30 · 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.

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

3values over a limit
306required values missing, on 30 form(s)
0of 100 forms filed late

Last period with anything received: 2026-03-31. Most often over: Solids, total suspended (3).

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 (104)

OutfallParameterStatisticLimitMonths
AWQ1Temperature, water deg. centigradeDAILY MX report only (alert) all year
AWQ1TurbidityDAILY MX report only (alert) all year
AWQ1Oxygen, dissolved [DO]DAILY MN report only (alert) all year
AWQ1Oxygen, dissolved [DO]MO AVG report only (alert) all year
AWQ1Arsenic, total [as As]MO AVG report only (alert) all year
AWQ1Cadmium, total [as Cd]MO AVG report only (alert) all year
AWQ1Chromium, total [as Cr]MO AVG report only (alert) all year
AWQ1Lead, total [as Pb]MO AVG report only (alert) all year
AWQ1Nickel, total [as Ni]MO AVG report only (alert) all year
AWQ1Zinc, total [as Zn]MO AVG report only (alert) all year
AWQ1Selenium, total [as Se]MO AVG report only (alert) all year
AWQ1pH, maximumMAXIMUM report only (alert) all year
AWQ1pH, minimumMINIMUM report only (alert) all year
AWQ1Mercury, total [as Hg]MO AVG report only (alert) all year
CP1ATemperature, water deg. centigradeMO AVG report only (alert) May, Jun, Jul, Aug, Sep
CP1ATemperature, water deg. centigradeMO AVG report only (alert) Jan, Feb, Mar, Apr, Oct, Nov, Dec
CP1ATurbidityDAILY MX report only (alert) all year
CP1ATurbidityMO AVG report only (alert) all year
CP1AOxygen, dissolved [DO]DAILY MN report only (alert) all year
CP1AOxygen, dissolved [DO]MO AVG report only (alert) all year
CP1ApH, maximumDAILY MX <= 9 SU all year
CP1ApH, minimumDAILY MN >= 6.5 SU all year
CP1RTemperature, water deg. centigradeMO AVG report only (alert) May, Jun, Jul, Aug, Sep
CP1RTemperature, water deg. centigradeMO AVG report only (alert) Jan, Feb, Mar, Apr, Oct, Nov, Dec
CP1RTurbidityDAILY MX report only (alert) all year
CP1RTurbidityMO AVG report only (alert) all year
CP1ROxygen, dissolved [DO]DAILY MN report only (alert) all year
CP1ROxygen, dissolved [DO]MO AVG report only (alert) all year
CP1RpH, maximumDAILY MX <= 9 SU all year
CP1RpH, minimumDAILY MN >= 6.5 SU all year
MP2ATemperature, water deg. centigradeDAILY MX report only (alert) all year
MP2ATemperature, water deg. centigradeMO AVG report only (alert) all year
MP2ATurbidityDAILY MX report only (alert) all year
MP2ATurbidityMO AVG report only (alert) all year
MP2AOxygen, dissolved [DO]DAILY MN report only (alert) all year
MP2AOxygen, dissolved [DO]MO AVG report only (alert) all year
MP2ApH, maximumMAXIMUM report only (alert) all year
MP2ApH, minimumMINIMUM report only (alert) all year
MP2RTemperature, water deg. centigradeDAILY MX report only (alert) all year
MP2RTemperature, water deg. centigradeMO AVG report only (alert) all year
MP2RTurbidityDAILY MX report only (alert) all year
MP2RTurbidityMO AVG report only (alert) all year
MP2ROxygen, dissolved [DO]DAILY MN report only (alert) all year
MP2ROxygen, dissolved [DO]MO AVG report only (alert) all year
MP2RpH, maximumMAXIMUM report only (alert) all year
MP2RpH, minimumMINIMUM report only (alert) all year
MP3ATemperature, water deg. centigradeDAILY MX report only (alert) all year
MP3ATemperature, water deg. centigradeMO AVG report only (alert) all year
MP3ATurbidityDAILY MX report only (alert) all year
MP3ATurbidityMO AVG report only (alert) all year
MP3AOxygen, dissolved [DO]DAILY MN report only (alert) all year
MP3AOxygen, dissolved [DO]MO AVG report only (alert) all year
MP3ApH, maximumMAXIMUM report only (alert) all year
MP3ApH, minimumMINIMUM report only (alert) all year
MP3RTemperature, water deg. centigradeDAILY MX report only (alert) all year
MP3RTemperature, water deg. centigradeMO AVG report only (alert) all year
MP3RTurbidityDAILY MX report only (alert) all year
MP3RTurbidityMO AVG report only (alert) all year
MP3ROxygen, dissolved [DO]DAILY MN report only (alert) all year
MP3ROxygen, dissolved [DO]MO AVG report only (alert) all year
MP3RpH, maximumMAXIMUM report only (alert) all year
MP3RpH, minimumMINIMUM report only (alert) all year
O1MTemperature, water deg. centigradeWKLY MAX <= 19.3 deg C all year
O1MTurbidityDAILY MX report only (alert) all year
O1MOxygen, dissolved [DO]DAILY MN report only (alert) all year
O1MOxygen, dissolved [DO]MO AVG report only (alert) all year
O1MSolids, total suspendedWKLY MAX <= 30 mg/L all year
O1MArsenic, total [as As]MO AVG report only (alert) all year
O1MCadmium, total [as Cd]MO AVG report only (alert) all year
O1MChromium, total [as Cr]MO AVG report only (alert) all year
O1MLead, total [as Pb]MO AVG report only (alert) all year
O1MNickel, total [as Ni]MO AVG report only (alert) all year
O1MZinc, total [as Zn]MO AVG report only (alert) all year
O1MSelenium, total [as Se]MO AVG report only (alert) all year
O1MpH, maximumDAILY MX <= 9 SU all year
O1MpH, minimumDAILY MN >= 6.5 SU all year
O1MMercury, total [as Hg]MO AVG report only (alert) all year
O1MFlowWKLY MAX <= 70000 gal/d all year
O1RTemperature, water deg. centigradeDAILY MX <= 20.4 deg C all year
O1RTurbidityDAILY MX report only (alert) all year
O1ROxygen, dissolved [DO]DAILY MN report only (alert) all year
O1ROxygen, dissolved [DO]MO AVG report only (alert) all year
O1RSolids, total suspendedDAILY MX <= 30 mg/L all year
O1RArsenic, total [as As]MO AVG report only (alert) all year
O1RCadmium, total [as Cd]MO AVG report only (alert) all year
O1RChromium, total [as Cr]MO AVG report only (alert) all year
O1RLead, total [as Pb]MO AVG report only (alert) all year
O1RNickel, total [as Ni]MO AVG report only (alert) all year
O1RZinc, total [as Zn]MO AVG report only (alert) all year
O1RSelenium, total [as Se]MO AVG report only (alert) all year
O1RpH, maximumDAILY MX <= 9.8 SU all year
O1RpH, minimumDAILY MN >= 7 SU all year
O1RMercury, total [as Hg]MO AVG report only (alert) all year
O1RFlowMO AVG report only (alert) all year
O1STemperature, water deg. centigradeMO AVG report only (alert) all year
O1STurbidityDAILY MX report only (alert) all year
O1STurbidityMO AVG report only (alert) all year
O1SOxygen, dissolved [DO]DAILY MN report only (alert) all year
O1SOxygen, dissolved [DO]MO AVG report only (alert) all year
O1SpHDAILY MN >= 7 SU all year
O1SpHDAILY MX <= 12 SU all year
O1SSolids, total suspendedDAILY MX <= 30 mg/L all year
O1SFlowMO AVG report only (alert) all year
O1SDischarge event observation [Visual Monitoring]DAILY MN >= 1 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