CITY OF LAS VEGAS
NPDES ID: NM0028827
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 1 single-event violation.
Violations
March 31, 2026
Oxygen, dissolved [DO]
5% over limit
Discharged 5.7 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
January 31, 2026
Oxygen, dissolved [DO]
7% over limit
Discharged 5.59 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
7% over limit
Discharged 5.59 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
December 31, 2025
Oxygen, dissolved [DO]
33% over limit
Discharged 4.04 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
33% over limit
Discharged 4.04 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
July 31, 2025
Oxygen, dissolved [DO]
12% over limit
Discharged 5.3 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
12% over limit
Discharged 5.3 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
June 30, 2025
BOD, 5-day, 20 deg. C
84% over limit
Discharged 451.6845962 kg/d against a permitted limit of 246.06799793 kg/d (7 DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
84% over limit
Discharged 451.6845962 kg/d against a permitted limit of 246.06799793 kg/d (7 DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
6% over limit
Discharged 201.21279831 kg/d against a permitted limit of 189.31799841 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
6% over limit
Discharged 201.21279831 kg/d against a permitted limit of 189.31799841 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
138% over limit
Discharged 47.5 mg/L against a permitted limit of 20 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
138% over limit
Discharged 47.5 mg/L against a permitted limit of 20 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
187% over limit
Discharged 57 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
187% over limit
Discharged 57 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
285% over limit
Discharged 100 mg/L against a permitted limit of 26 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
285% over limit
Discharged 100 mg/L against a permitted limit of 26 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Aluminum, total recoverable
31% over limit
Discharged 0.13000001 mg/L against a permitted limit of 0.09955 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
31% over limit
Discharged 0.13000001 mg/L against a permitted limit of 0.09955 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
53% over limit
Discharged 2.8 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
53% over limit
Discharged 2.8 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
March 31, 2025
Oxygen, dissolved [DO]
35% over limit
Discharged 3.92 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
35% over limit
Discharged 3.92 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
35% over limit
Discharged 1.27119999 kg/d against a permitted limit of 0.94250399 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
35% over limit
Discharged 1.27119999 kg/d against a permitted limit of 0.94250399 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
41% over limit
Discharged 577 MPN/100mL against a permitted limit of 410 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
41% over limit
Discharged 577 MPN/100mL against a permitted limit of 410 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
191% over limit
Discharged 0.29000001 mg/L against a permitted limit of 0.09955 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
191% over limit
Discharged 0.29000001 mg/L against a permitted limit of 0.09955 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
136% over limit
Discharged 1005.38299155 kg/d against a permitted limit of 426.30599642 kg/d (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
136% over limit
Discharged 1005.38299155 kg/d against a permitted limit of 426.30599642 kg/d (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
67% over limit
Discharged 75 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
67% over limit
Discharged 75 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
312% over limit
Discharged 185.5 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
312% over limit
Discharged 185.5 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
69% over limit
Discharged 50.6 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
69% over limit
Discharged 50.6 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
January 31, 2025
E. coli
485% over limit
Discharged 2400 MPN/100mL against a permitted limit of 410 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
485% over limit
Discharged 2400 MPN/100mL against a permitted limit of 410 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 53.3 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 53.3 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Chlorine, total residual
2445% over limit
Discharged 0.28000001 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Chlorine, total residual
2445% over limit
Discharged 0.28000001 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Chlorine, total residual
2445% over limit
Discharged 0.28000001 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
42% over limit
Discharged 3.5 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
42% over limit
Discharged 3.5 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
42% over limit
Discharged 3.5 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
November 30, 2024
Chlorine, total residual
82% over limit
Discharged 0.02 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Chlorine, total residual
82% over limit
Discharged 0.02 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Chlorine, total residual
82% over limit
Discharged 0.02 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
October 31, 2024
Chlorine, total residual
445% over limit
Discharged 0.06 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Chlorine, total residual
445% over limit
Discharged 0.06 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Chlorine, total residual
445% over limit
Discharged 0.06 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)