Clean Water Act discharge permit · NPDES NV0023701
CITYCENTER, Las Vegas, NV: NPDES NV0023701 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 40Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
CITYCENTER, held by CITYCENTER / MGM RESORTS INT'L, holds NPDES permit NV0023701. EPA’s file records it issued October 16, 2009 and expiring December 15, 2014.
CITYCENTER, Las Vegas, Nevada: Individual permit NV0023701, held by CITYCENTER / MGM RESORTS INT'L; Administratively continued (past its expiration date and still in force until reissued); issued October 16, 2009, term to December 15, 2014, by NDEP.
- Selenium, total [as Se]: 0 limits, 108 violations of any kind, 59 effluent exceedances, latest September 30, 2025, largest 3,300% over the limit.
- Flow rate: 10 limits, 404 violations of any kind, 6 effluent exceedances, latest June 30, 2023, largest 84,444% over the limit.
- Boron, total [as B]: 0 limits, 50 violations of any kind, 1 effluent exceedance, latest September 30, 2021, largest 33% over the limit.
- Nitrogen, ammonia total [as N]: 1 limit, 49 violations of any kind, 0 effluent exceedances.
- Nitrogen, inorganic total: 1 limit, 49 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 1 limit, 49 violations of any kind, 0 effluent exceedances.
- Chloroform: 1 limit, 49 violations of any kind, 0 effluent exceedances.
- pH, maximum: 1 limit, 49 violations of any kind, 0 effluent exceedances.
- pH, minimum: 1 limit, 49 violations of any kind, 0 effluent exceedances.
- Solids, total dissolved: 1 limit, 49 violations of any kind, 0 effluent exceedances.
- Nitrogen, nitrite total [as N]: 0 limits, 49 violations of any kind, 0 effluent exceedances.
- Nitrogen, nitrate total [as N]: 0 limits, 49 violations of any kind, 0 effluent exceedances.
- Hydrocarbons, total petroleum: 1 limit, 18 violations of any kind, 0 effluent exceedances.
- Methyl tert-butyl ether [MTBE]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Dichlorobromomethane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Carbon tetrachloride: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,2-Dichloroethane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Bromoform: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Dibromochloromethane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Toluene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Benzene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Chlorobenzene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Ethylbenzene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Methyl bromide [Bromomethane]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Methyl chloride [Chloromethane]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Methylene chloride: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Tetrachloroethylene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Trichlorofluoromethane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,1-Dichloroethane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,1-Dichloroethylene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,1,1-Trichloroethane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,1,2-Trichloroethane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,1,2,2-Tetrachloroethane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,2-Dichlorobenzene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,2-Dichloropropane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- trans-1,2-Dichloroethylene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,3-Dichlorobenzene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 1,4-Dichlorobenzene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- 2-Chloroethyl vinyl ether, [mixed]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- trans-1,3-Dichloropropene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- cis-1,3-Dichloropropene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Vinyl chloride: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Trichloroethylene: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Chloroethane: 1 limit, 0 violations of any kind, 0 effluent exceedances.
CITYCENTER among its neighbors
EPA’s permit file holds 18 discharge permits in the Tropicana Wash subwatershed (HUC 150100150505), NV0023701 among them. Its county holds 86, 4 of them major permits; NV0023701 is a minor permit.
Other permits in the Tropicana Wash subwatershed (HUC 150100150505)
- 4613 S LAS VEGAS BLVD, Las Vegas: NV0024254, minor permit, permit term to August 31, 2029
- ALLEGIANT STADIUM, Las Vegas: NV0024239, minor permit, permit term to May 31, 2026
- CALVARY CHAPEL LAS VEGAS, Las Vegas: NVCS46276, minor permit, discharging to Lake Mead, permit term to January 4, 2020
- DOUBLETREE BY HILTON, Las Vegas: NV0023744, minor permit, permit term to June 30, 2021
- DUNEVILLE I, Las Vegas: NVCS46220, minor permit, discharging to Lake Mead, permit term to January 4, 2020
- ENCORE-LVCC CONNECTOR, Las Vegas: NV0024256, minor permit, permit term to April 30, 2028
- HARRAHS LAS VEGAS, Las Vegas: NV0022845, minor permit, discharging to LAS VEGAS WASH, permit term to January 27, 2008
- HUGHES CENTER, Las Vegas: NV0023604, minor permit, permit term to December 31, 2020
- LAS VEGAS SANDS - VENETIAN CASINO RESORT, Las Vegas: NV0022888, minor permit, permit term to October 11, 2015
- MENDENHALL CENTER - UNLV, Las Vegas: NV0023931, minor permit, permit term to July 31, 2024
Identity
| Facility as filed | CITYCENTER |
|---|---|
| Permittee as filed | CITYCENTER / MGM RESORTS INT'L |
| NPDES ID | NV0023701 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 16, 2009 |
| Expiration date | December 15, 2014 |
| Issuing agency | NDEP |
| Address | Las Vegas, NV 89109 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Tropicana Wash (HUC 150100150505) |
Effluent limits and exceedances
- 44Pollutants on file
- 40Under a numeric limit
- 13With a violation of any kind
- 3With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Selenium, total [as Se] | 0 | 108 | 59 | September 30, 2025 | 3,300% over the limit |
| Flow rate | 10 | 404 | 6 | June 30, 2023 | 84,444% over the limit |
| Boron, total [as B] | 0 | 50 | 1 | September 30, 2021 | 33% over the limit |
| Nitrogen, ammonia total [as N] | 1 | 49 | 0 | ||
| Nitrogen, inorganic total | 1 | 49 | 0 | ||
| Phosphorus, total [as P] | 1 | 49 | 0 | ||
| Chloroform | 1 | 49 | 0 | ||
| pH, maximum | 1 | 49 | 0 | ||
| pH, minimum | 1 | 49 | 0 | ||
| Solids, total dissolved | 1 | 49 | 0 | ||
| Nitrogen, nitrite total [as N] | 0 | 49 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 49 | 0 | ||
| Hydrocarbons, total petroleum | 1 | 18 | 0 | ||
| Methyl tert-butyl ether [MTBE] | 1 | 0 | 0 | ||
| Dichlorobromomethane | 1 | 0 | 0 | ||
| Carbon tetrachloride | 1 | 0 | 0 | ||
| 1,2-Dichloroethane | 1 | 0 | 0 | ||
| Bromoform | 1 | 0 | 0 | ||
| Dibromochloromethane | 1 | 0 | 0 | ||
| Toluene | 1 | 0 | 0 | ||
| Benzene | 1 | 0 | 0 | ||
| Chlorobenzene | 1 | 0 | 0 | ||
| Ethylbenzene | 1 | 0 | 0 | ||
| Methyl bromide [Bromomethane] | 1 | 0 | 0 | ||
| Methyl chloride [Chloromethane] | 1 | 0 | 0 | ||
| Methylene chloride | 1 | 0 | 0 | ||
| Tetrachloroethylene | 1 | 0 | 0 | ||
| Trichlorofluoromethane | 1 | 0 | 0 | ||
| 1,1-Dichloroethane | 1 | 0 | 0 | ||
| 1,1-Dichloroethylene | 1 | 0 | 0 | ||
| 1,1,1-Trichloroethane | 1 | 0 | 0 | ||
| 1,1,2-Trichloroethane | 1 | 0 | 0 | ||
| 1,1,2,2-Tetrachloroethane | 1 | 0 | 0 | ||
| 1,2-Dichlorobenzene | 1 | 0 | 0 | ||
| 1,2-Dichloropropane | 1 | 0 | 0 | ||
| trans-1,2-Dichloroethylene | 1 | 0 | 0 | ||
| 1,3-Dichlorobenzene | 1 | 0 | 0 | ||
| 1,4-Dichlorobenzene | 1 | 0 | 0 | ||
| 2-Chloroethyl vinyl ether, [mixed] | 1 | 0 | 0 | ||
| trans-1,3-Dichloropropene | 1 | 0 | 0 | ||
| cis-1,3-Dichloropropene | 1 | 0 | 0 | ||
| Vinyl chloride | 1 | 0 | 0 | ||
| Trichloroethylene | 1 | 0 | 0 | ||
| Chloroethane | 1 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NV0023701.
Inspections
EPA’s inspection file holds no inspection for NPDES NV0023701.
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 NV0023701.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.