Velarion Records

Clean Water Act discharge permit · NPDES CA0084697

THUNDER VALLEY CASINO WWTP, Lincoln, CA: NPDES CA0084697 discharge permit, effluent exceedances, inspections, penalties

THUNDER VALLEY CASINO WWTP, held by UNITED AUBURN INDIAN COMMUNITY, holds NPDES permit CA0084697, which discharges to Orchard Creek. EPA’s file records it issued January 28, 2010 and expiring January 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 filedTHUNDER VALLEY CASINO WWTP
Permittee as filedUNITED AUBURN INDIAN COMMUNITY
NPDES IDCA0084697
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedJanuary 28, 2010
Expiration dateJanuary 1, 2015
AddressLincoln, CA 95648
Receiving waterORCHARD CREEK
SubwatershedOrchard Creek (HUC 180201610101)
SIC7011 – Hotels And Motels
Other EPA IDs (FRS)RCRA handler XIC000001297

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

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 204 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Nitrite + Nitrate total [as N]033May 31, 2020121% over the limit
BOD, 5-day, percent removal122December 31, 2019567% over the limit
Solids, suspended percent removal122December 31, 2019567% over the limit
pH211April 30, 2020
BOD, 5-day, 20 deg. C1700
Solids, total suspended1700
Nitrogen, ammonia total [as N]1200
Zinc, total recoverable500
Cadmium, total recoverable500
Lead, total recoverable500
Flow, in conduit or thru treatment plant400
2,3,7,8-Tetrachlorodibenzo-p-dioxin300
Iron, total recoverable200
Aluminum, total recoverable200
1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin200
Manganese, total recoverable200
1,2,3,7,8-Pentachlorodibenzo-p-dioxin200
1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin200
1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin200
1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin200
1,2,3,7,8-Pentachlorodibenzofuran200
2,3,4,7,8-Pentachlorodibenzofuran200
1,2,3,4,7,8-Hexachlorodibenzofuran200
1,2,3,6,7,8-Hexachlorodibenzofuran200
1,2,3,7,8,9-Hexachlorodibenzofuran200
2,3,4,6,7,8-Hexachlorodibenzofuran200
1,2,3,4,6,7,8-Heptachlorodibenzofuran200
1,2,3,4,7,8,9-Heptachlorodibenzofuran200
1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin200
2,3,7,8-Tetrachlorodibenzofuran200
Chlorine, total residual200
1,2,3,4,6,7,8,9-Octachlorodibenzofuran200
Mercury, total recoverable200
Coliform, total general200
TCDD equivalents200
% Survival Static Renewal 96Hr Acute Pimephales promelas200
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)200
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia200
TU Static Renewal 7-Day Chronic Pimphales promelas200
Temperature, water deg. centigrade100
Specific conductance100
Nitrogen, nitrite total [as N]100
Nitrogen, nitrate total [as N]100
Phosphorus, total [as P]100
Cyanide, total [as CN]100
Sulfite [as SO3]100
Sulfide, total [as S]100
Hardness, total [as CaCO3]100
Chloride [as Cl]100
Sulfate, total [as SO4]100
Asbestos100
Fluoride, total [as F]100
Arsenic, total recoverable100
Selenium, total recoverable100
Thallium, total recoverable100
Beryllium, total recoverable [as Be]100
Barium, total recoverable100
Chromium, hexavalent [as Cr]100
Nickel, total recoverable100
Silver total recoverable100

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 CA0084697.

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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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 CA0084697 there.

Nearby on the register

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

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