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Clean Water Act discharge permit · NPDES WAR310539

CARLSON, Bothell, WA: NPDES WAR310539 discharge permit, effluent exceedances, inspections, penalties

CARLSON, held by Harbour Homes LLC, holds NPDES permit WAR310539. EPA’s file records it issued November 18, 2020 and expiring December 31, 2025.

CARLSON, Bothell, Washington: Coverage under a general permit WAR310539, held by Harbour Homes LLC; 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.

  • Turbidity: 2 limits, 23 violations of any kind, 5 effluent exceedances, latest July 31, 2024.
  • pH: 4 limits, 36 violations of any kind, 0 effluent exceedances.
  • Transparency: 2 limits, 18 violations 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 WAR310539. Harbour Homes LLC holds 10 permits in Washington.

Other permits held by Harbour Homes LLC

Coverages issued nearest WAR310539

CARLSON among its neighbors

EPA’s permit file holds 117 discharge permits in the North Creek subwatershed (HUC 171100120302), WAR310539 among them.

Other permits in the North Creek subwatershed (HUC 171100120302)

Identity

Facility as filedCARLSON
Permittee as filedHarbour Homes LLC
NPDES IDWAR310539
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
AddressBothell, WA 98011
Receiving water impaired303(D) Listed
SubwatershedNorth Creek (HUC 171100120302)

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
Turbidity2235July 31, 2024
pH4360
Transparency2180

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES WAR310539.

Inspections

EPA’s inspection file holds no inspection for NPDES WAR310539.

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 WAR310539.

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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 Clean Water Act NPDES permit WAR310539 for CARLSON in Bothell, WA, held by Harbour Homes LLC, with a status of administratively continued and a construction stormwater program. The file lists 3 pollutants on record, 3 under a numeric limit, 3 with a violation of any kind, and 1 with an effluent exceedance.