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Clean Water Act discharge permit · NPDES WAR309199

RIVERWATCH SUBDIVISION, Washougal, WA: NPDES WAR309199 discharge permit, effluent exceedances, inspections, penalties

RIVERWATCH SUBDIVISION, held by Hidden Development, holds NPDES permit WAR309199. EPA’s file records it issued November 18, 2020 and expiring December 31, 2025.

RIVERWATCH SUBDIVISION, Washougal, Washington: Coverage under a general permit WAR309199, held by Hidden Development; 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, 10 violations of any kind, 0 effluent exceedances.
  • Turbidity: 1 limit, 5 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 WAR309199.

Coverages issued nearest WAR309199

RIVERWATCH SUBDIVISION among its neighbors

EPA’s permit file holds 18 discharge permits in the Lower Washougal River subwatershed (HUC 170800010606), WAR309199 among them.

Other permits in the Lower Washougal River subwatershed (HUC 170800010606)

Identity

Facility as filedRIVERWATCH SUBDIVISION
Permittee as filedHidden Development
NPDES IDWAR309199
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
AddressWashougal, WA 98671
SubwatershedLower Washougal River (HUC 170800010606)

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
pH2100
Turbidity150

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WAR309199.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES WAR309199.

Inspections

EPA’s inspection file holds no inspection for NPDES WAR309199.

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 WAR309199.

Watch this permit

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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 discharge permit NPDES WAR309199 for RIVERWATCH SUBDIVISION in Washougal, WA, held by Hidden Development, with the permit listed as administratively continued and a Minor Discharger class 2 designation. The page lists 2 pollutants on file, 2 under a numeric limit, 2 with a violation of any kind, and 0 with an effluent exceedance, within the Lower Washougal River subwatershed (HUC 170800010606).