Velarion Records

Clean Water Act discharge permit · NPDES CAC404600

OROVILLE WS, Oroville, CA: NPDES CAC404600 discharge permit, effluent exceedances, inspections, penalties

OROVILLE WS, held by California Water Service Company, holds NPDES permit CAC404600. EPA’s file records it issued February 5, 2016 and expiring February 25, 2020. 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.

What the register holds for OROVILLE WS: its NPDES ID, its permit type and status, its dates, its address in Oroville, California. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CAC404600.

Identity

Facility as filedOROVILLE WS
Permittee as filedCalifornia Water Service Company
NPDES IDCAC404600
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
IssuedFebruary 5, 2016
Expiration dateFebruary 25, 2020
Issuing agencyCA Waterboards
AddressOroville, CA 95965
Receiving water impaired303(D) Listed
SubwatershedOregon Gulch-Feather River (HUC 180201590202)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES CAC404600.

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 CAC404600.

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, CAC404600.

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How we handle your data → Privacy

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 CAC404600 there.

Nearby on the register

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

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