Puget Sound Energy

NPDES permit WA0031291 · Minor NON-POTW · administratively continued, expires 2025-06-30 · 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 2025-06-30 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)
0of 46 forms filed late

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

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 (88)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only (alert) all year
001Temperature, water deg. centigradeDAILY MX report only (alert) all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
001Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
001Arsenic, total [as As]Single Rdg report only (alert) all year
001Arsenic, total [as As]Single Rdg report only (alert) all year
001Beryllium, total [as Be]Single Rdg report only (alert) all year
001Beryllium, total [as Be]Single Rdg report only (alert) all year
001Cadmium, total [as Cd]Single Rdg report only (alert) all year
001Cadmium, total [as Cd]Single Rdg report only (alert) all year
001Chromium, hexavalent [as Cr]Single Rdg report only (alert) all year
001Chromium, hexavalent [as Cr]Single Rdg report only (alert) all year
001Chromium, total [as Cr]DAILY MX <= .2 mg/L all year
001Chromium, total [as Cr]DAILY MX <= .2 mg/L all year
001Chromium, total [as Cr]MO AVG <= .2 mg/L all year
001Chromium, total [as Cr]MO AVG <= .2 mg/L all year
001Copper, total [as Cu]Single Rdg report only (alert) all year
001Copper, total [as Cu]Single Rdg report only (alert) all year
001Lead, total [as Pb]Single Rdg report only (alert) all year
001Lead, total [as Pb]Single Rdg report only (alert) all year
001Thallium, total [as Tl]Single Rdg report only (alert) all year
001Thallium, total [as Tl]Single Rdg report only (alert) all year
001Nickel, total [as Ni]Single Rdg report only (alert) all year
001Nickel, total [as Ni]Single Rdg report only (alert) all year
001Silver, total [as Ag]Single Rdg report only (alert) all year
001Silver, total [as Ag]Single Rdg report only (alert) all year
001Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
001Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
001Zinc, total [as Zn]MO AVG <= 1 mg/L all year
001Zinc, total [as Zn]MO AVG <= 1 mg/L all year
001Antimony, total [as Sb]Single Rdg report only (alert) all year
001Antimony, total [as Sb]Single Rdg report only (alert) all year
001Selenium, total [as Se]Single Rdg report only (alert) all year
001Selenium, total [as Se]Single Rdg report only (alert) all year
001DurationMO TOTAL <= 446 min all year
001DurationMO TOTAL <= 446 min all year
001Chlorine, total residualMO AVG <= .2 mg/L all year
001Chlorine, total residualMO AVG <= .2 mg/L all year
001pH, maximumDAILY MX <= 9 SU (alert) all year
001pH, maximumDAILY MX <= 9 SU (alert) all year
001pH, minimumDAILY MN >= 6 SU (alert) all year
001pH, minimumDAILY MN >= 6 SU (alert) all year
001Mercury, total [as Hg]Single Rdg report only (alert) all year
001Mercury, total [as Hg]Single Rdg report only (alert) all year
001FlowMO AVG report only (alert) all year
001FlowMO AVG report only (alert) all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG <= 15 mg/L all year
002Solids, total suspendedMO AVG <= 15 mg/L all year
002Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
002Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
002Arsenic, total [as As]Single Rdg report only (alert) all year
002Arsenic, total [as As]Single Rdg report only (alert) all year
002Beryllium, total [as Be]Single Rdg report only (alert) all year
002Beryllium, total [as Be]Single Rdg report only (alert) all year
002Cadmium, total [as Cd]Single Rdg report only (alert) all year
002Cadmium, total [as Cd]Single Rdg report only (alert) all year
002Chromium, total [as Cr]Single Rdg report only (alert) all year
002Chromium, total [as Cr]Single Rdg report only (alert) all year
002Copper, total [as Cu]Single Rdg report only (alert) all year
002Copper, total [as Cu]Single Rdg report only (alert) all year
002Lead, total [as Pb]Single Rdg report only (alert) all year
002Lead, total [as Pb]Single Rdg report only (alert) all year
002Thallium, total [as Tl]Single Rdg report only (alert) all year
002Thallium, total [as Tl]Single Rdg report only (alert) all year
002Nickel, total [as Ni]Single Rdg report only (alert) all year
002Nickel, total [as Ni]Single Rdg report only (alert) all year
002Silver, total [as Ag]Single Rdg report only (alert) all year
002Silver, total [as Ag]Single Rdg report only (alert) all year
002Zinc, total [as Zn]Single Rdg report only (alert) all year
002Zinc, total [as Zn]Single Rdg report only (alert) all year
002Antimony, total [as Sb]Single Rdg report only (alert) all year
002Antimony, total [as Sb]Single Rdg report only (alert) all year
002Selenium, total [as Se]Single Rdg report only (alert) all year
002Selenium, total [as Se]Single Rdg report only (alert) all year
002Chromium, hexavalent dissolved [as Cr]Single Rdg report only (alert) all year
002Chromium, hexavalent dissolved [as Cr]Single Rdg report only (alert) all year
002Mercury, total [as Hg]Single Rdg report only (alert) all year
002Mercury, total [as Hg]Single Rdg report only (alert) all year
PRODTotal production - massMO AVG report only (alert) all year
PRODTotal production - massMO AVG report only (alert) all year
PRODProduction, total, megawattsMO AVG 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