CITYCENTER / MGM RESORTS INT'L

NPDES permit NV0023701 · Minor NON-POTW · expired, expires 2026-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2026-03-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

7values over a limit
197required values missing, on 54 form(s)
37of 70 forms filed late

Last period with anything received: 2026-06-30. Most often over: Selenium, total [as Se] (7).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (341)

OutfallParameterStatisticLimitMonths
001Flow rate30DA AVG report only all year
001Flow rate30DA AVG report only all year
001Flow rateDAILY MX report only all year
001Flow rateDAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, nitrite total [as N]DAILY MX <= 5 mg/L all year
001Nitrogen, nitrite total [as N]DAILY MX <= 5 mg/L all year
001Nitrogen, nitrate total [as N]DAILY MX <= 90 mg/L all year
001Nitrogen, nitrate total [as N]DAILY MX <= 90 mg/L all year
001Nitrogen, inorganic totalDAILY MX <= 20 mg/L all year
001Nitrogen, inorganic totalDAILY MX <= 20 mg/L all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Cyanide, total [as CN]DAILY MX <= 5.2 ug/L all year
001Sulfide, total [as S]DAILY MX <= 2 ug/L all year
001Fluoride, total [as F]DAILY MX <= 1000 ug/L all year
001Arsenic, total recoverableDAILY MX <= 150 ug/L all year
001Iron, total recoverableDAILY MX <= 1000 ug/L all year
001Beryllium, total recoverable [as Be]DAILY MX <= 100 ug/L all year
001Boron, total [as B]DAILY MX <= .75 mg/L all year
001Boron, total [as B]DAILY MX <= .75 mg/L all year
001Nickel, total recoverableDAILY MX <= 192.6 ug/L all year
001Silver total recoverableDAILY MX <= 46.07 ug/L all year
001Zinc, total recoverableDAILY MX <= 438.39 ug/L all year
001Cadmium, total recoverableDAILY MX <= 2.29 ug/L all year
001Lead, total recoverableDAILY MX <= 12.9 ug/L all year
001Chromium, total recoverableDAILY MX <= 100 ug/L all year
001Copper, total recoverableDAILY MX <= 33.61 ug/L all year
001Molybdenum, total recoverableDAILY MX <= 1650 ug/L all year
001Selenium, total [as Se]DAILY MX <= .005 mg/L all year
001Selenium, total [as Se]DAILY MX <= .005 mg/L all year
001Manganese, total recoverableDAILY MX <= 200 ug/L all year
001Methyl tert-butyl ether [MTBE]DAILY MX <= 20 ug/L all year
001DichlorobromomethaneDAILY MX report only all year
001Carbon tetrachlorideDAILY MX report only all year
0011,2-DichloroethaneDAILY MX report only all year
001BromoformDAILY MX report only all year
001DibromochloromethaneDAILY MX report only all year
001ChloroformDAILY MX report only all year
001ChloroformDAILY MX report only all year
001TolueneDAILY MX <= 100 ug/L all year
001BenzeneDAILY MX <= 5 ug/L all year
001AcroleinDAILY MX <= 3 ug/L all year
001ChlorobenzeneDAILY MX report only all year
001EthylbenzeneDAILY MX <= 100 ug/L all year
001Methyl bromide [Bromomethane]DAILY MX report only all year
001Methyl chloride [Chloromethane]DAILY MX report only all year
001Methylene chlorideDAILY MX report only all year
001TetrachloroethyleneDAILY MX report only all year
001TrichlorofluoromethaneDAILY MX report only all year
0011,1-DichloroethaneDAILY MX report only all year
0011,1-DichloroethyleneDAILY MX report only all year
0011,1,1-TrichloroethaneDAILY MX report only all year
0011,1,2-TrichloroethaneDAILY MX report only all year
0011,1,2,2-TetrachloroethaneDAILY MX report only all year
0011,2-DichlorobenzeneDAILY MX report only all year
0011,2-DichloropropaneDAILY MX report only all year
001trans-1,2-DichloroethyleneDAILY MX report only all year
0011,3-DichlorobenzeneDAILY MX report only all year
0011,4-DichlorobenzeneDAILY MX report only all year
0012-Chloroethyl vinyl ether, [mixed]DAILY MX report only all year
001trans-1,3-DichloropropeneDAILY MX report only all year
001cis-1,3-DichloropropeneDAILY MX report only all year
001PentachlorophenolDAILY MX report only all year
001Vinyl chlorideDAILY MX report only all year
001TrichloroethyleneDAILY MX report only all year
0014,4'-DDTDAILY MX <= .001 ug/L all year
001AldrinDAILY MX <= 3 ug/L all year
001Chlordane [tech mix. and metabolites]DAILY MX <= .0043 ug/L all year
001DieldrinDAILY MX <= .056 ug/L all year
001EndrinDAILY MX <= .036 ug/L all year
001ToxapheneDAILY MX <= .0002 ug/L all year
001HeptachlorDAILY MX <= .0038 ug/L all year
001Heptachlor epoxideDAILY MX <= .0038 ug/L all year
001pH, maximumDAILY MX <= 9 SU all year
001pH, maximumDAILY MX <= 9 SU all year
001pH, minimumDAILY MN >= 6.5 SU all year
001pH, minimumDAILY MN >= 6.5 SU all year
001Solids, total dissolvedDAILY MX <= 3000 mg/L all year
001Solids, total dissolvedDAILY MX <= 3000 mg/L all year
001Mercury, total recoverableDAILY MX <= .77 ug/L all year
001Xylene [mix of m+o+p]DAILY MX <= 200 ug/L all year
001Hydrocarbons, total petroleumDAILY MX <= 1 mg/L all year
001Hydrocarbons, total petroleumDAILY MX <= 1 mg/L all year
001ChloroethaneDAILY MX report only all year
002Flow rate30DA AVG report only all year
002Flow rate30DA AVG report only all year
002Flow rateDAILY MX report only all year
002Flow rateDAILY MX report only all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Nitrogen, nitrite total [as N]DAILY MX <= 5 mg/L all year
002Nitrogen, nitrite total [as N]DAILY MX <= 5 mg/L all year
002Nitrogen, nitrate total [as N]DAILY MX <= 90 mg/L all year
002Nitrogen, nitrate total [as N]DAILY MX <= 90 mg/L all year
002Nitrogen, inorganic totalDAILY MX <= 20 mg/L all year
002Phosphorus, total [as P]DAILY MX report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Cyanide, total [as CN]DAILY MX <= 5.2 ug/L all year
002Sulfide, total [as S]DAILY MX <= 2 ug/L all year
002Fluoride, total [as F]DAILY MX <= 1000 ug/L all year
002Arsenic, total recoverableDAILY MX <= 150 ug/L all year
002Iron, total recoverableDAILY MX <= 1000 ug/L all year
002Beryllium, total recoverable [as Be]DAILY MX <= 100 ug/L all year
002Boron, total [as B]DAILY MX <= .75 mg/L all year
002Boron, total [as B]DAILY MX <= .75 mg/L all year
002Nickel, total recoverableDAILY MX <= 192.6 ug/L all year
002Silver total recoverableDAILY MX <= 46.07 ug/L all year
002Zinc, total recoverableDAILY MX <= 438.39 ug/L all year
002Cadmium, total recoverableDAILY MX <= 2.29 ug/L all year
002Lead, total recoverableDAILY MX <= 12.9 ug/L all year
002Chromium, total recoverableDAILY MX <= 100 ug/L all year
002Copper, total recoverableDAILY MX <= 33.61 ug/L all year
002Molybdenum, total recoverableDAILY MX <= 1650 ug/L all year
002Selenium, total [as Se]DAILY MX <= .005 mg/L all year
002Selenium, total [as Se]DAILY MX <= .005 mg/L all year
002Manganese, total recoverableDAILY MX <= 200 ug/L all year
002Methyl tert-butyl ether [MTBE]DAILY MX <= 20 ug/L all year
002DichlorobromomethaneDAILY MX report only all year
002Carbon tetrachlorideDAILY MX report only all year
0021,2-DichloroethaneDAILY MX report only all year
002BromoformDAILY MX report only all year
002DibromochloromethaneDAILY MX report only all year
002ChloroformDAILY MX report only all year
002ChloroformDAILY MX report only all year
002TolueneDAILY MX <= 100 ug/L all year
002BenzeneDAILY MX <= 5 ug/L all year
002AcroleinDAILY MX <= 3 ug/L all year
002ChlorobenzeneDAILY MX report only all year
002EthylbenzeneDAILY MX <= 100 ug/L all year
002Methyl bromide [Bromomethane]DAILY MX report only all year
002Methyl chloride [Chloromethane]DAILY MX report only all year
002Methylene chlorideDAILY MX report only all year
002TetrachloroethyleneDAILY MX report only all year
002TrichlorofluoromethaneDAILY MX report only all year
0021,1-DichloroethaneDAILY MX report only all year
0021,1-DichloroethyleneDAILY MX report only all year
0021,1,1-TrichloroethaneDAILY MX report only all year
0021,1,2-TrichloroethaneDAILY MX report only all year
0021,1,2,2-TetrachloroethaneDAILY MX report only all year
0021,2-DichlorobenzeneDAILY MX report only all year
0021,2-DichloropropaneDAILY MX report only all year
002trans-1,2-DichloroethyleneDAILY MX report only all year
0021,3-DichlorobenzeneDAILY MX report only all year
0021,4-DichlorobenzeneDAILY MX report only all year
0022-Chloroethyl vinyl ether, [mixed]DAILY MX report only all year
002trans-1,3-DichloropropeneDAILY MX report only all year
002cis-1,3-DichloropropeneDAILY MX report only all year
002PentachlorophenolDAILY MX report only all year
002Vinyl chlorideDAILY MX report only all year
002TrichloroethyleneDAILY MX report only all year
0024,4'-DDTDAILY MX <= .001 ug/L all year
002AldrinDAILY MX <= 3 ug/L all year
002Chlordane [tech mix. and metabolites]DAILY MX <= .0043 ug/L all year
002DieldrinDAILY MX <= .056 ug/L all year
002EndrinDAILY MX <= .036 ug/L all year
002ToxapheneDAILY MX <= .0002 ug/L all year
002HeptachlorDAILY MX <= .0038 ug/L all year
002Heptachlor epoxideDAILY MX <= .0038 ug/L all year
002pH, maximumDAILY MX <= 9 SU all year
002pH, maximumDAILY MX <= 9 SU all year
002pH, minimumDAILY MN >= 6.5 SU all year
002pH, minimumDAILY MN >= 6.5 SU all year
002Solids, total dissolvedDAILY MX <= 3000 mg/L all year
002Solids, total dissolvedDAILY MX <= 3000 mg/L all year
002Mercury, total recoverableDAILY MX <= .77 ug/L all year
002Xylene [mix of m+o+p]DAILY MX <= 200 ug/L all year
002Hydrocarbons, total petroleumDAILY MX <= 1 mg/L all year
002ChloroethaneDAILY MX report only all year
003Flow rate30DA AVG report only all year
003Flow rate30DA AVG report only all year
003Flow rateDAILY MX report only all year
003Flow rateDAILY MX report only all year
003Nitrogen, ammonia total [as N]DAILY MX report only all year
003Nitrogen, ammonia total [as N]DAILY MX report only all year
003Nitrogen, nitrite total [as N]DAILY MX <= 5 mg/L all year
003Nitrogen, nitrite total [as N]DAILY MX <= 5 mg/L all year
003Nitrogen, nitrate total [as N]DAILY MX <= 90 mg/L all year
003Nitrogen, nitrate total [as N]DAILY MX <= 90 mg/L all year
003Nitrogen, inorganic totalDAILY MX <= 20 mg/L all year
003Nitrogen, inorganic totalDAILY MX <= 20 mg/L all year
003Phosphorus, total [as P]DAILY MX report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Cyanide, total [as CN]DAILY MX <= 5.2 ug/L all year
003Sulfide, total [as S]DAILY MX <= 2 ug/L all year
003Fluoride, total [as F]DAILY MX <= 1000 ug/L all year
003Arsenic, total recoverableDAILY MX <= 150 ug/L all year
003Iron, total recoverableDAILY MX <= 1000 ug/L all year
003Beryllium, total recoverable [as Be]DAILY MX <= 100 ug/L all year
003Boron, total [as B]DAILY MX <= .75 mg/L all year
003Nickel, total recoverableDAILY MX <= 192.6 ug/L all year
003Silver total recoverableDAILY MX <= 46.07 ug/L all year
003Zinc, total recoverableDAILY MX <= 438.39 ug/L all year
003Cadmium, total recoverableDAILY MX <= 2.29 ug/L all year
003Lead, total recoverableDAILY MX <= 12.9 ug/L all year
003Chromium, total recoverableDAILY MX <= 100 ug/L all year
003Copper, total recoverableDAILY MX <= 33.61 ug/L all year
003Molybdenum, total recoverableDAILY MX <= 1650 ug/L all year
003Selenium, total [as Se]DAILY MX <= .005 mg/L all year
003Selenium, total [as Se]DAILY MX <= .005 mg/L all year
003Manganese, total recoverableDAILY MX <= 200 ug/L all year
003Methyl tert-butyl ether [MTBE]DAILY MX <= 20 ug/L all year
003DichlorobromomethaneDAILY MX report only all year
003Carbon tetrachlorideDAILY MX report only all year
0031,2-DichloroethaneDAILY MX report only all year
003BromoformDAILY MX report only all year
003DibromochloromethaneDAILY MX report only all year
003ChloroformDAILY MX report only all year
003TolueneDAILY MX <= 100 ug/L all year
003BenzeneDAILY MX <= 5 ug/L all year
003AcroleinDAILY MX <= 3 ug/L all year
003ChlorobenzeneDAILY MX report only all year
003EthylbenzeneDAILY MX <= 100 ug/L all year
003Methyl bromide [Bromomethane]DAILY MX report only all year
003Methyl chloride [Chloromethane]DAILY MX report only all year
003Methylene chlorideDAILY MX report only all year
003TetrachloroethyleneDAILY MX report only all year
003TrichlorofluoromethaneDAILY MX report only all year
0031,1-DichloroethaneDAILY MX report only all year
0031,1-DichloroethyleneDAILY MX report only all year
0031,1,1-TrichloroethaneDAILY MX report only all year
0031,1,2-TrichloroethaneDAILY MX report only all year
0031,1,2,2-TetrachloroethaneDAILY MX report only all year
0031,2-DichlorobenzeneDAILY MX report only all year
0031,2-DichloropropaneDAILY MX report only all year
003trans-1,2-DichloroethyleneDAILY MX report only all year
0031,3-DichlorobenzeneDAILY MX report only all year
0031,4-DichlorobenzeneDAILY MX report only all year
0032-Chloroethyl vinyl ether, [mixed]DAILY MX report only all year
003trans-1,3-DichloropropeneDAILY MX report only all year
003cis-1,3-DichloropropeneDAILY MX report only all year
003PentachlorophenolDAILY MX report only all year
003Vinyl chlorideDAILY MX report only all year
003TrichloroethyleneDAILY MX report only all year
0034,4'-DDTDAILY MX <= .001 ug/L all year
003AldrinDAILY MX <= 3 ug/L all year
003Chlordane [tech mix. and metabolites]DAILY MX <= .0043 ug/L all year
003DieldrinDAILY MX <= .056 ug/L all year
003EndrinDAILY MX <= .036 ug/L all year
003ToxapheneDAILY MX <= .0002 ug/L all year
003HeptachlorDAILY MX <= .0038 ug/L all year
003Heptachlor epoxideDAILY MX <= .0038 ug/L all year
003pH, maximumDAILY MX <= 9 SU all year
003pH, maximumDAILY MX <= 9 SU all year
003pH, minimumDAILY MN >= 6.5 SU all year
003Solids, total dissolvedDAILY MX <= 3000 mg/L all year
003Solids, total dissolvedDAILY MX <= 3000 mg/L all year
003Mercury, total recoverableDAILY MX <= .77 ug/L all year
003Xylene [mix of m+o+p]DAILY MX <= 200 ug/L all year
003Hydrocarbons, total petroleumDAILY MX <= 1 mg/L all year
003Hydrocarbons, total petroleumDAILY MX <= 1 mg/L all year
003ChloroethaneDAILY MX report only all year
004Flow rate30DA AVG report only all year
004Flow rate30DA AVG report only all year
004Flow rateDAILY MX report only all year
004Flow rateDAILY MX report only all year
004Nitrogen, ammonia total [as N]DAILY MX report only all year
004Nitrogen, ammonia total [as N]DAILY MX report only all year
004Nitrogen, nitrite total [as N]DAILY MX <= 5 mg/L all year
004Nitrogen, nitrite total [as N]DAILY MX <= 5 mg/L all year
004Nitrogen, nitrate total [as N]DAILY MX <= 90 mg/L all year
004Nitrogen, nitrate total [as N]DAILY MX <= 90 mg/L all year
004Nitrogen, inorganic totalDAILY MX <= 20 mg/L all year
004Phosphorus, total [as P]DAILY MX report only all year
004Phosphorus, total [as P]DAILY MX report only all year
004Cyanide, total [as CN]DAILY MX <= 5.2 ug/L all year
004Sulfide, total [as S]DAILY MX <= 2 ug/L all year
004Fluoride, total [as F]DAILY MX <= 1000 ug/L all year
004Arsenic, total recoverableDAILY MX <= 150 ug/L all year
004Iron, total recoverableDAILY MX <= 1000 ug/L all year
004Beryllium, total recoverable [as Be]DAILY MX <= 100 ug/L all year
004Boron, total [as B]DAILY MX <= .75 mg/L all year
004Boron, total [as B]DAILY MX <= .75 mg/L all year
004Nickel, total recoverableDAILY MX <= 192.6 ug/L all year
004Silver total recoverableDAILY MX <= 46.07 ug/L all year
004Zinc, total recoverableDAILY MX <= 438.39 ug/L all year
004Cadmium, total recoverableDAILY MX <= 2.29 ug/L all year
004Lead, total recoverableDAILY MX <= 12.9 ug/L all year
004Chromium, total recoverableDAILY MX <= 100 ug/L all year
004Copper, total recoverableDAILY MX <= 33.61 ug/L all year
004Molybdenum, total recoverableDAILY MX <= 1650 ug/L all year
004Selenium, total [as Se]DAILY MX <= .005 mg/L all year
004Selenium, total [as Se]DAILY MX <= .005 mg/L all year
004Manganese, total recoverableDAILY MX <= 200 ug/L all year
004Methyl tert-butyl ether [MTBE]DAILY MX <= 20 ug/L all year
004DichlorobromomethaneDAILY MX report only all year
004Carbon tetrachlorideDAILY MX report only all year
0041,2-DichloroethaneDAILY MX report only all year
004BromoformDAILY MX report only all year
004DibromochloromethaneDAILY MX report only all year
004ChloroformDAILY MX report only all year
004ChloroformDAILY MX report only all year
004TolueneDAILY MX <= 100 ug/L all year
004BenzeneDAILY MX <= 5 ug/L all year
004AcroleinDAILY MX <= 3 ug/L all year
004ChlorobenzeneDAILY MX report only all year
004EthylbenzeneDAILY MX <= 100 ug/L all year
004Methyl bromide [Bromomethane]DAILY MX report only all year
004Methyl chloride [Chloromethane]DAILY MX report only all year
004Methylene chlorideDAILY MX report only all year
004TetrachloroethyleneDAILY MX report only all year
004TrichlorofluoromethaneDAILY MX report only all year
0041,1-DichloroethaneDAILY MX report only all year
0041,1-DichloroethyleneDAILY MX report only all year
0041,1,1-TrichloroethaneDAILY MX report only all year
0041,1,2-TrichloroethaneDAILY MX report only all year
0041,1,2,2-TetrachloroethaneDAILY MX report only all year
0041,2-DichlorobenzeneDAILY MX report only all year
0041,2-DichloropropaneDAILY MX report only all year
004trans-1,2-DichloroethyleneDAILY MX report only all year
0041,3-DichlorobenzeneDAILY MX report only all year
0041,4-DichlorobenzeneDAILY MX report only all year
0042-Chloroethyl vinyl ether, [mixed]DAILY MX report only all year
004trans-1,3-DichloropropeneDAILY MX report only all year
004cis-1,3-DichloropropeneDAILY MX report only all year
004PentachlorophenolDAILY MX report only all year
004Vinyl chlorideDAILY MX report only all year
004TrichloroethyleneDAILY MX report only all year
0044,4'-DDTDAILY MX <= .001 ug/L all year
004AldrinDAILY MX <= 3 ug/L all year
004Chlordane [tech mix. and metabolites]DAILY MX <= .0043 ug/L all year
004DieldrinDAILY MX <= .0056 ug/L all year
004EndrinDAILY MX <= .0036 ug/L all year
004ToxapheneDAILY MX <= .0002 ug/L all year
004HeptachlorDAILY MX <= .0038 ug/L all year
004Heptachlor epoxideDAILY MX <= .0038 ug/L all year
004pH, maximumDAILY MX <= 9 SU all year
004pH, minimumDAILY MN >= 6.5 SU all year
004pH, minimumDAILY MN >= 6.5 SU all year
004Solids, total dissolvedDAILY MX <= 3000 mg/L all year
004Solids, total dissolvedDAILY MX <= 3000 mg/L all year
004Mercury, total recoverableDAILY MX <= .77 ug/L all year
004Xylene [mix of m+o+p]DAILY MX <= 200 ug/L all year
004Hydrocarbons, total petroleumDAILY MX <= 1 mg/L all year
004Hydrocarbons, total petroleumDAILY MX <= 1 mg/L all year
004ChloroethaneDAILY MX report only all year
SUMFlow rate30DA AVG report only all year
SUMFlow rate30DA AVG report only all year
SUMFlow rateDAILY MX <= 47000 gal/d all year
SUMFlow rateDAILY MX <= 47000 gal/d all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states