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Clean Water Act discharge permit · NPDES WAR314698

SEVEN MILE BRIDGE, Walla Walla, WA: NPDES WAR314698 discharge permit, effluent exceedances, inspections, penalties

SEVEN MILE BRIDGE, held by Walla Walla County, holds NPDES permit WAR314698. EPA’s file records it issued November 18, 2020 and expiring December 31, 2025.

SEVEN MILE BRIDGE, Walla Walla, Washington: Coverage under a general permit WAR314698, held by Walla Walla County; Construction stormwater; Administratively continued (past its expiration date and still in force until reissued); issued November 18, 2020, term to December 31, 2025, by State.

  • pH: 2 limits, 2 violations of any kind, 0 effluent exceedances.
  • Turbidity: 1 limit, 1 violation of any kind, 0 effluent exceedances.
  • Transparency: 1 limit, 1 violation of any kind, 0 effluent exceedances.

Washington holds 4,744 Construction stormwater coverages of this permit type in EPA’s file; 1,658 were issued before WAR314698. Walla Walla County holds 4 permits in Washington.

Other permits held by Walla Walla County

Coverages issued nearest WAR314698

SEVEN MILE BRIDGE among its neighbors

EPA’s permit file holds 32 discharge permits in the Lower Mill Creek subwatershed (HUC 170701020204), WAR314698 among them.

Other permits in the Lower Mill Creek subwatershed (HUC 170701020204)

Identity

Facility as filedSEVEN MILE BRIDGE
Permittee as filedWalla Walla County
NPDES IDWAR314698
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
ProgramConstruction stormwater
IssuedNovember 18, 2020
Expiration dateDecember 31, 2025
Issuing agencyState
AddressWalla Walla, WA 99362
SubwatershedLower Mill Creek (HUC 170701020204)

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
pH220
Turbidity110
Transparency110

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WAR314698.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES WAR314698.

Inspections

EPA’s inspection file holds no inspection for NPDES WAR314698.

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 WAR314698.

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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 WAR314698 for SEVEN MILE BRIDGE in Walla Walla, WA, held by Walla Walla County under a construction stormwater program, with a status of administratively continued after its December 31, 2025 expiration date. The page lists 3 pollutants on file, 3 under a numeric limit, 3 with a violation of any kind, and 0 with an effluent exceedance, within the Lower Mill Creek (HUC 170701020204) subwatershed.