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Clean Water Act discharge permit · NPDES WAG500097

OKANOGAN CO PUBLIC WORKS MIDLAND PUGMILL UI #398, Okanogan, WA: NPDES WAG500097 discharge permit, effluent exceedances, inspections, penalties

OKANOGAN CO PUBLIC WORKS MIDLAND PUGMILL UI #398, held by Okanogan County Public Works, holds NPDES permit WAG500097. EPA’s file records it issued February 17, 2021 and expiring March 31, 2026.

OKANOGAN CO PUBLIC WORKS MIDLAND PUGMILL UI #398, Okanogan, Washington: Coverage under a general permit WAG500097, held by Okanogan County Public Works; Effective; issued February 17, 2021, term to March 31, 2026, by State.

  • pH: 24 limits, 186 violations of any kind, 0 effluent exceedances.
  • Oil and grease visual: 12 limits, 93 violations of any kind, 0 effluent exceedances.

OKANOGAN CO PUBLIC WORKS MIDLAND PUGMILL UI #398 among its neighbors

EPA’s permit file holds 3 discharge permits in the Tallant Creek-Okanogan River subwatershed (HUC 170200060504), WAG500097 among them. Its county holds 57, 0 of them major permits; WAG500097 is a minor permit.

Other permits in the Tallant Creek-Okanogan River subwatershed (HUC 170200060504)

Identity

Facility as filedOKANOGAN CO PUBLIC WORKS MIDLAND PUGMILL UI #398
Permittee as filedOkanogan County Public Works
NPDES IDWAG500097
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedFebruary 17, 2021
Expiration dateMarch 31, 2026
Issuing agencyState
AddressOkanogan, WA 98840
SubwatershedTallant Creek-Okanogan River (HUC 170200060504)

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
pH241860
Oil and grease visual12930

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WAG500097.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES WAG500097.

Inspections

EPA’s inspection file holds no inspection for NPDES WAG500097.

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

EPA’s informal enforcement file holds no action for NPDES WAG500097.

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Nearby on the register

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

What this page shows

This public-records page covers NPDES permit WAG500097, held by Okanogan County Public Works for the OKANOGAN CO PUBLIC WORKS MIDLAND PUGMILL UI #398 facility in Okanogan, WA, in the Tallant Creek-Okanogan River subwatershed (HUC 170200060504). The permit is listed as Effective and as a Minor Discharger, with 2 pollutants on file, both under a numeric limit, and 0 pollutants with an effluent exceedance.