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Clean Water Act discharge permit · NPDES WAR308607

I-405 RENTON TO BELLEVUE ETL PROJECT, Renton, WA: NPDES WAR308607 discharge permit, effluent exceedances, inspections, penalties

I-405 RENTON TO BELLEVUE ETL PROJECT, held by FlatironDragados-Lane a Join Venture, holds NPDES permit WAR308607. EPA’s file records it issued November 18, 2020 and expiring December 31, 2025. 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 filedI-405 RENTON TO BELLEVUE ETL PROJECT
Permittee as filedFlatironDragados-Lane a Join Venture
NPDES IDWAR308607
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
AddressRenton, WA 98055
Receiving water impaired303(D) Listed
SubwatershedMadsen Creek-Cedar River (HUC 171100120106)

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
Turbidity47151123June 30, 2026
pH94593January 31, 2024
Total Petroleum Hydrocarbons - Gasoline2170
Arsenic, total [as As]220
Cadmium, total [as Cd]220
Chromium, total [as Cr]220
Copper, total [as Cu]220
Lead, total [as Pb]220
Acenaphthylene220
Acenaphthene220
Anthracene220
Benzo[b]fluoranthene220
Benzo[k]fluoranthene220
Benzo[a]pyrene220
Chrysene220
Fluoranthene220
Fluorene220
Indeno[1,2,3-cd]pyrene220
Phenanthrene220
Pyrene220
Tetrachloroethylene220
1,1-Dichloroethane220
Benzo[ghi]perylene220
Benzo[a]anthracene220
Dibenz[a,h]anthracene220
Naphthalene220
Vinyl chloride220
Total Petroleum Hydrocarbons - Diesel220
Carbon disulfide220
1,2,4-Trimethylbenzene220
Isopropylbenzene220
n-Propylbenzene220
1,3,5-Trimethylbenzene220
n-Butylbenzene220
2-Methylnaphthalene220
1-Methylnaphthalene220
Benzo[j]fluoranthene220
Trichloroethene220
Acetone220
Methyl ethyl ketone220
cis-1,2-Dichloroethene220

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 WAR308607.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, WAR308607.

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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 WAR308607 there.

Nearby on the register

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