WA STATE PATROL

NPDES permit WA0031836 · Minor NON-POTW · administratively continued, expires 2021-09-30 · 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 2021-09-30 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
4required values missing, on 4 form(s)
6of 22 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (38)

OutfallParameterStatisticLimitMonths
MP1BOD, 5-day, 20 deg. CDAILY MX report only all year
MP1BOD, 5-day, 20 deg. CDAILY MX report only (alert) all year
MP1pHDAILY MN >= 6 SU all year
MP1pHDAILY MN >= 6 SU all year
MP1pHDAILY MX <= 9 SU all year
MP1pHDAILY MX <= 9 SU all year
MP1Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
MP1Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
MP1Benzene, ethylbenzene, toluene, xylene combinationDAILY MX <= 100 ug/L all year
MP1Benzene, ethylbenzene, toluene, xylene combinationDAILY MX <= 100 ug/L all year
MP1BenzeneDAILY MX <= 1 ug/L all year
MP1BenzeneDAILY MX <= 1 ug/L all year
MP1Total Petroleum Hydrocarbons - DieselDAILY MX <= 5 mg/L all year
MP1Total Petroleum Hydrocarbons - DieselDAILY MX <= 5 mg/L all year
MP1Total Petroleum Hydrocarbons - GasolineDAILY MX <= 1 mg/L all year
MP1Total Petroleum Hydrocarbons - GasolineDAILY MX <= 1 mg/L all year
MP1Solids, total dissolvedDAILY MX <= 500 mg/L all year
MP1Solids, total dissolvedDAILY MX <= 500 mg/L all year
MP1Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
MP1Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
MP2pHDAILY MN >= 6 SU all year
MP2pHDAILY MN >= 6 SU all year
MP2pHDAILY MX <= 9 SU all year
MP2pHDAILY MX <= 9 SU all year
MP2Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
MP2Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
MP2Benzene, ethylbenzene, toluene, xylene combinationDAILY MX <= 100 ug/L all year
MP2Benzene, ethylbenzene, toluene, xylene combinationDAILY MX <= 100 ug/L all year
MP2BenzeneDAILY MX <= 1 ug/L all year
MP2BenzeneDAILY MX <= 1 ug/L all year
MP2Total Petroleum Hydrocarbons - DieselDAILY MX <= 5 mg/L all year
MP2Total Petroleum Hydrocarbons - DieselDAILY MX <= 5 mg/L all year
MP2Total Petroleum Hydrocarbons - GasolineDAILY MX <= 1 mg/L all year
MP2Total Petroleum Hydrocarbons - GasolineDAILY MX <= 1 mg/L all year
MP2Solids, total dissolvedDAILY MX <= 500 mg/L all year
MP2Solids, total dissolvedDAILY MX <= 500 mg/L all year
MP2Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
MP2Oil and grease visualDAILY MX <= 0 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