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Clean Water Act discharge permit · NPDES NV0023515

THE COSMOPOLITAN OF LAS VEGAS, Las Vegas, NV: NPDES NV0023515 discharge permit, effluent exceedances, inspections, penalties

THE COSMOPOLITAN OF LAS VEGAS, held by NEVADA PROPERTY 1 LLC DBA THE COSMOPOLITAN OF LAS VEGAS, holds NPDES permit NV0023515. EPA’s file records it issued June 7, 2012 and expiring June 7, 2017. 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.

Identity

Facility as filedTHE COSMOPOLITAN OF LAS VEGAS
Permittee as filedNEVADA PROPERTY 1 LLC DBA THE COSMOPOLITAN OF LAS VEGAS
NPDES IDNV0023515
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 7, 2012
Expiration dateJune 7, 2017
Issuing agencyNDEP
AddressLas Vegas, NV 89109
Receiving water impaired303(D) Listed
SubwatershedTropicana Wash (HUC 150100150505)

Cited to the EPA ICIS-NPDES permit file (ECHO 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 76 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Flow rate23719March 31, 202371% over the limit
Nitrogen, ammonia total [as N]2440
Phosphate, total [as PO4]0210
Solids, total dissolved4160
Phosphorus, total [as P]490
Nitrogen, inorganic total280
Selenium, total [as Se]270
pH, maximum270
pH, minimum270
Boron, total [as B]050
Barium, total [as Ba]230
Alkalinity, total [as CaCO3]220
Alkalinity, bicarbonate [as CaCO3]220
Nitrogen, total [as N]220
Nitrite + Nitrate total [as N]220
Cyanide, weak acid, dissociable220
Calcium, total [as Ca]220
Magnesium, total [as Mg]220
Sodium, total [as Na]220
Potassium, total [as K]220
Chloride [as Cl]220
Sulfate, total [as SO4]220
Fluoride, total [as F]220
Arsenic, total [as As]220
Beryllium, total [as Be]220
Cadmium, total [as Cd]220
Chromium, total [as Cr]220
Copper, total [as Cu]220
Iron, total [as Fe]220
Lead, total [as Pb]220
Manganese, total [as Mn]220
Thallium, total [as Tl]220
Nickel, total [as Ni]220
Silver, total [as Ag]220
Zinc, total [as Zn]220
Antimony, total [as Sb]220
Aluminum, total [as Al]220
Mercury, total [as Hg]220
Methyl tert-butyl ether [MTBE]210
Toluene210
Benzene210
Ethylbenzene210
Tetrachloroethylene210
Xylene [mix of m+o+p]210
Hydrocarbons, total petroleum210
Arsenic, total recoverable010
Lead, total recoverable010
Volatile Organic Compound [VOC]010
Mercury, total recoverable010
Dichlorobromomethane200
Carbon tetrachloride200
1,2-Dichloroethane200
Bromoform200
Dibromochloromethane200
Chloroform200
Chlorobenzene200
Methyl bromide [Bromomethane]200
Methyl chloride [Chloromethane]200
Methylene chloride200
Trichlorofluoromethane200

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 NV0023515.

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

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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 NV0023515 there.

Nearby on the register

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