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Clean Water Act discharge permit · NPDES WAG641012

CHEHALIS WTP, Chehalis, WA: NPDES WAG641012 discharge permit, effluent exceedances, inspections, penalties

CHEHALIS WTP, held by City of Chehalis, holds NPDES permit WAG641012. EPA’s file records it issued July 17, 2019 and expiring August 31, 2024. 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 filedCHEHALIS WTP
Permittee as filedCity of Chehalis
NPDES IDWAG641012
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 17, 2019
Expiration dateAugust 31, 2024
Issuing agencyState
AddressChehalis, WA 98532
SubwatershedSalzer Creek (HUC 171001030401)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

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
Volume, total2110
pH2100
Number of Events2100
Turbidity1100
Solids, settleable1100
Chlorine, total residual1100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WAG641012.

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 WAG641012.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

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 WAG641012 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act NPDES permit WAG641012 for CHEHALIS WTP in Chehalis, WA, held by City of Chehalis, with an administratively continued status and a Minor Discharger class. The facts list 6 pollutants on file, 6 under a numeric limit, 6 with a violation of any kind, and 0 with an effluent exceedance.