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Clean Water Act discharge permit · NPDES WA0040738

WESTERN WOOD PRESERVING CO, Sumner, WA: NPDES WA0040738 discharge permit, effluent exceedances, inspections, penalties

WESTERN WOOD PRESERVING CO holds NPDES permit WA0040738. EPA’s file records it issued August 4, 2010 and expiring August 31, 2015. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedWESTERN WOOD PRESERVING CO
Permittee as filedWESTERN WOOD PRESERVING CO
NPDES IDWA0040738
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 4, 2010
Expiration dateAugust 31, 2015
Issuing agencyState
AddressSumner, WA 98390
Receiving water impaired303(D) Listed
SubwatershedWhite River (HUC 171100140404)
Other EPA IDs (FRS)RCRA handler WAD055498232; ICIS-AIR source WAPSC0000000020886

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH, minimum62070
Flow21030
Oil & grease, non-polar material1800
Copper, total [as Cu]2760
Arsenic, dissolved [as As]1740
Solids, total suspended2720
Chromium, total [as Cr]2720
Nitrogen, ammonia total [as N]2660
pH0360
Chemical oxygen demand [COD]0180
Oil and grease [soxhlet extr.] tot.280
Arsenic, total [as As]270

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WA0040738.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES WA0040738.

Inspections

DateWhat EPA recordedAgency
August 17, 2026EvaluationS

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

DateWhat EPA recordedAgency
March 13, 2026Letter of Violation/ Warning LetterState

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID WA0040738 there.

WESTERN WOOD PRESERVING CO, Sumner, Washington: Individual permit WA0040738; Administratively continued (past its expiration date and still in force until reissued); issued August 4, 2010, term to August 31, 2015, by State.

  • pH, minimum: 6 limits, 207 violations of any kind, 0 effluent exceedances.
  • Flow: 2 limits, 103 violations of any kind, 0 effluent exceedances.
  • Oil & grease, non-polar material: 1 limit, 80 violations of any kind, 0 effluent exceedances.
  • Copper, total [as Cu]: 2 limits, 76 violations of any kind, 0 effluent exceedances.
  • Arsenic, dissolved [as As]: 1 limit, 74 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 2 limits, 72 violations of any kind, 0 effluent exceedances.
  • Chromium, total [as Cr]: 2 limits, 72 violations of any kind, 0 effluent exceedances.
  • Nitrogen, ammonia total [as N]: 2 limits, 66 violations of any kind, 0 effluent exceedances.
  • pH: 0 limits, 36 violations of any kind, 0 effluent exceedances.
  • Chemical oxygen demand [COD]: 0 limits, 18 violations of any kind, 0 effluent exceedances.
  • Oil and grease [soxhlet extr.] tot.: 2 limits, 8 violations of any kind, 0 effluent exceedances.
  • Arsenic, total [as As]: 2 limits, 7 violations of any kind, 0 effluent exceedances.
  • August 17, 2026: Evaluation (S).
  • March 13, 2026: Letter of Violation/ Warning Letter (State).

WESTERN WOOD PRESERVING CO among its neighbors

EPA’s permit file holds 138 discharge permits in the White River subwatershed (HUC 171100140404), WA0040738 among them. Its county holds 662, 9 of them major permits; WA0040738 is a minor permit.

Other permits in the White River subwatershed (HUC 171100140404)

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This EPA-sourced public-records page covers NPDES discharge permit WA0040738 held by WESTERN WOOD PRESERVING CO in Sumner, WA, showing a permit status of Administratively continued, a Minor Discharger class, and an issued date of August 4, 2010 with an expiration date of August 31, 2015. The page lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and it notes the facility's watershed as White River (HUC 171100140404).