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NPDES WAR312422 · Clean Water Act

I90 SUNSET CREEK FISH PASSAGE PROJECT, Bellevue, WA: NPDES WAR312422 discharge permit, effluent exceedances, inspections, penalties

I90 SUNSET CREEK FISH PASSAGE PROJECT, Bellevue, Washington: General permit coverage WAR312422, held by Guy F. Atkinson Construction, LLC; Construction stormwater; Administratively continued; issued November 18, 2020, term to December 31, 2025, by State.

5 of the 6 pollutants listed for NPDES WAR312422 have no violation or effluent exceedance.

  • Turbidity: 8 limits, 10 violations of any kind, 10 effluent exceedances, latest August 31, 2025.
  • pH: 16 limits.
  • Chromium, total [as Cr]: 1 limit.
  • Copper, total [as Cu]: 1 limit.
  • Lead, total [as Pb]: 1 limit.
  • Total Petroleum Hydrocarbons - Diesel: 1 limit.

Washington holds 4,744 Construction stormwater coverages of this permit type in EPA’s file; 1,658 were issued before WAR312422. Guy F. Atkinson Construction, LLC holds 2 permits in Washington.

Other permits held by Guy F. Atkinson Construction, LLC

Coverages issued nearest WAR312422

I90 SUNSET CREEK FISH PASSAGE PROJECT among its neighbors

475 discharge permits are in the Lake Washington-Sammamish River subwatershed (HUC 171100120400); WAR312422 is one.

Other permits in the Lake Washington-Sammamish River subwatershed (HUC 171100120400)

Identity

FacilityI90 SUNSET CREEK FISH PASSAGE PROJECT
PermitteeGuy F. Atkinson Construction, LLC
NPDES IDWAR312422
StatusAdministratively continued
TypeGeneral permit coverage
ClassMinor
Facility typeNon-POTW
ProgramConstruction stormwater
IssuedNovember 18, 2020
ExpiresDecember 31, 2025
AgencyState
AddressBellevue, WA 98006
SubwatershedLake Washington-Sammamish River (HUC 171100120400)

NPDES WAR312422: effluent limits and exceedances

I90 SUNSET CREEK FISH PASSAGE PROJECT (NPDES WAR312422): 6 pollutants on file, 6 limited; 1 with a violation of any kind, 1 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Turbidity81010August 31, 2025
pH1600
Chromium, total [as Cr]100
Copper, total [as Cu]100
Lead, total [as Pb]100
Total Petroleum Hydrocarbons - Diesel100

NPDES WAR312422: inspections, violations and enforcement

NPDES WAR312422 (I90 SUNSET CREEK FISH PASSAGE PROJECT): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES WAR312422

NPDES WAR312422: 6 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.