WEST MONROE, CITY OF- WASTEWATER TREATMENT PLANT
NPDES ID: LA0043982
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 9 effluent violations.
Violations
June 30, 2026
Solids, total suspended
128% over limit
Discharged 1805.55344483 kg/d against a permitted limit of 791.322 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
116% over limit
Discharged 1706.02756567 kg/d against a permitted limit of 791.322 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
635% over limit
Discharged 2939.22 MPN/100mL against a permitted limit of 400 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
77% over limit
Discharged 53 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
1136% over limit
Discharged 2471.91 MPN/100mL against a permitted limit of 200 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
87% over limit
Discharged 56.09 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
22% over limit
Discharged 55.03 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
Limit violation
Discharged 0.05 mg/L against a permitted limit of 0 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
26% over limit
Discharged 56.81 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Chlorine, total residual
Limit violation
Discharged 0.18 mg/L against a permitted limit of 0 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
May 31, 2025
Chlorine, total residual
Limit violation
Discharged 1.53 mg/L against a permitted limit of 0 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
26% over limit
Discharged 56.54 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
64% over limit
Discharged 49.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
58% over limit
Discharged 1252.80844947 kg/d against a permitted limit of 791.322 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
170% over limit
Discharged 2138.31728203 kg/d against a permitted limit of 791.322 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Chlorine, total residual
Limit violation
Discharged 2.11 mg/L against a permitted limit of 0 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
February 28, 2025
Chlorine, total residual
Limit violation
Discharged 2.01 mg/L against a permitted limit of 0 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
142% over limit
Discharged 1913.24678392 kg/d against a permitted limit of 791.322 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
Limit violation
Discharged 0.3 mg/L against a permitted limit of 0 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
417% over limit
Discharged 155 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
244% over limit
Discharged 155 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (7 hours ago)