Western Wood Preserving Company

NPDES permit WA0040738 · Minor NON-POTW · administratively continued, expires 2026-08-31 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 24 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (12)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG report only (alert) all year
001Chromium, total [as Cr]MO AVG report only (alert) all year
001Copper, total [as Cu]MO AVG report only (alert) all year
001FlowAVERAGE report only (alert) all year
001FlowDAILY MX report only (alert) all year
001Chemical oxygen demand [COD]MO AVG report only (alert) all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002FlowAVERAGE report only (alert) all year
002FlowDAILY 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