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Clean Water Act discharge permit · NPDES CA0077712

AUBURN WWTP, Auburn, CA: NPDES CA0077712 discharge permit, effluent exceedances, inspections, penalties

AUBURN WWTP, held by Auburn, City of, holds NPDES permit CA0077712, which discharges to Auburn Ravine. EPA’s file records it issued September 22, 2010 and expiring September 1, 2015. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedAUBURN WWTP
Permittee as filedAuburn, City of
NPDES IDCA0077712
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedSeptember 22, 2010
Expiration dateSeptember 1, 2015
AddressAuburn, CA 95603
Receiving waterAUBURN RAVINE
SubwatershedDutch Ravine-Auburn Ravine (HUC 180201610102)
SIC4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same 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; the 60 with the most exceedances of 197 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Aluminum, acid soluble05452February 29, 20081,029% over the limit
Chloroform26051January 31, 20083,727% over the limit
BOD, 5-day, 20 deg. C74611September 30, 200899,999% over the limit
pH22311May 31, 2008
Turbidity22010October 31, 2009
Chlorine, total residual22010December 31, 200913,550% over the limit
Solids, total suspended7438January 31, 201899,999% over the limit
Coliform, total general2237March 31, 200999,999% over the limit
Heptachlor1147January 31, 20112,147,483,650% over the limit
Dibromodichloromethane095October 31, 2010384% over the limit
Nitrite + Nitrate total [as N]285September 30, 200728% over the limit
Oil and grease0124December 31, 2009480% over the limit
Manganese, total recoverable194February 28, 201014% over the limit
Nitrogen, nitrite total [as N]2103January 31, 200846% over the limit
.beta.-Endosulfan192January 31, 20112,147,483,650% over the limit
Endrin aldehyde192January 31, 20112,147,483,650% over the limit
%Surv Static Renewal 96Hr Oncorhynchus mykiss2131March 31, 201021% over the limit
Dichlorobromomethane3101August 31, 2005392% over the limit
4,4'-DDT161April 30, 2007160% over the limit
4,4'-DDD161April 30, 200732% over the limit
Heptachlor epoxide161June 30, 200568% over the limit
PCB-1254161August 31, 2006400% over the limit
Nickel, total recoverable151December 31, 2006135% over the limit
BOD, 5-day, percent removal141September 30, 200899,999% over the limit
Solids, suspended percent removal141October 31, 20104% over the limit
Silver total recoverable131May 31, 2006829% over the limit
Nitrogen, ammonia total [as N]8160
Flow, in conduit or thru treatment plant4140
Dibromochloromethane3130
Nitrogen, nitrate total [as N]2100
Diazinon2100
Temperature, water deg. fahrenheit270
Di[2-ethylhexyl] phthalate [DEHP]170
Specific conductance260
Copper, total recoverable160
Solids, total dissolved160
.delta.-BHC150
Endosulfan sulfate150
.alpha.-Endosulfan150
PCB-1016150
4,4'-DDE150
Aldrin150
.alpha.-BHC150
.beta.-BHC150
.gamma.-BHC150
Chlordane [tech mix. and metabolites]150
Dieldrin150
Endrin150
Toxaphene150
PCB-1221150
PCB-1232150
PCB-1242150
PCB-1248150
PCB-1260150
Lead, total recoverable240
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)240
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia240
TU Static Renewal 7-Day Chronic Pimphales promelas240
Zinc, total recoverable140
Solids, settleable040

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 CA0077712.

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.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers the Clean Water Act discharge permit NPDES CA0077712 for AUBURN WWTP in Auburn, CA, held by Auburn, City of, with the permit listed as administratively continued and classed as a Major Discharger. The page lists 188 pollutants under a numeric limit and 26 pollutants with an effluent exceedance.