Stella-Jones Corporation

NPDES permit WA0037953 · Minor NON-POTW · effective, expires 2026-09-30 · 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.

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

3values over a limit
0required values missing, on 0 form(s)
0of 33 forms filed late

Last period with anything received: 2026-07-31. Most often over: Copper, total [as Cu] (2), Chemical oxygen demand [COD] (1).

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 (44)

OutfallParameterStatisticLimitMonths
001TurbidityDAILY MX report only (alert) all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 10 mg/L all year
001Arsenic, total [as As]DAILY MX <= 68 ug/L all year
001Chromium, total [as Cr]DAILY MX <= 33 ug/L all year
001Copper, total [as Cu]DAILY MX <= 92 ug/L all year
001Polynuclear Aromatic Hydrocarbons [PAHs]DAILY MX <= 37 ug/L all year
001PentachlorophenolDAILY MX <= 39.5 ug/L all year
001Total Petroleum Hydrocarbons - DieselDAILY MX <= 500 ug/L all year
001FlowAVERAGE report only (alert) all year
001FlowMAXIMUM report only (alert) all year
001Chemical oxygen demand [COD]DAILY MX <= 120 mg/L all year
002TurbidityDAILY MX report only (alert) all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedDAILY MX <= 50 mg/L all year
002Oil and grease [soxhlet extr.] tot.DAILY MX <= 10 mg/L all year
002Arsenic, total [as As]DAILY MX <= 118 ug/L all year
002Chromium, total [as Cr]DAILY MX <= 22.5 ug/L all year
002Copper, total [as Cu]DAILY MX <= 105 ug/L all year
002Polynuclear Aromatic Hydrocarbons [PAHs]DAILY MX <= 50 ug/L all year
002PentachlorophenolDAILY MX <= 8.6 ug/L all year
002Total Petroleum Hydrocarbons - DieselDAILY MX <= 500 ug/L all year
002FlowAVERAGE report only (alert) all year
002FlowMAXIMUM report only (alert) all year
002Chemical oxygen demand [COD]DAILY MX <= 120 mg/L all year
002ATurbidityDAILY MX report only (alert) all year
002ApHMAXIMUM report only (alert) all year
002ApHMINIMUM report only (alert) all year
002ASolids, total suspendedDAILY MX report only (alert) all year
002AOil and grease [soxhlet extr.] tot.DAILY MX report only (alert) all year
002AArsenic, total [as As]DAILY MX report only (alert) all year
002AChromium, total [as Cr]DAILY MX report only (alert) all year
002ACopper, total [as Cu]DAILY MX report only (alert) all year
002APolynuclear Aromatic Hydrocarbons [PAHs]DAILY MX report only (alert) all year
002APentachlorophenolDAILY MX report only (alert) all year
002ARainfallDAILY MX report only (alert) all year
002ADurationDAILY MX report only (alert) all year
002ATotal Petroleum Hydrocarbons - DieselDAILY MX report only (alert) all year
002AFlowAVERAGE report only (alert) all year
002AFlowMAXIMUM report only (alert) all year
002AChemical oxygen demand [COD]DAILY MX 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