GILBERT, VILLAGE OF- SEWAGE DISTRICT 1
NPDES ID: LA0049859
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: 7 effluent violations.
Violations
May 31, 2026
Oxygen, dissolved [DO]
22% over limit
Discharged 3.88 mg/L against a permitted limit of 5 mg/L (MO AV MN)
DMR, Limited - Numeric Violation
Chlorine, total residual
385% over limit
Discharged 0.16 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
60% over limit
Discharged 24 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
1021% over limit
Discharged 0.37 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
65% over limit
Discharged 38 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Chlorine, total residual
415% over limit
Discharged 0.17 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
February 28, 2026
Chlorine, total residual
173% over limit
Discharged 0.09 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
10% over limit
Discharged 5.48 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Chlorine, total residual
21% over limit
Discharged 0.04 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
61% over limit
Discharged 37 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
107% over limit
Discharged 31.04 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
82% over limit
Discharged 0.06 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
November 30, 2025
Chlorine, total residual
203% over limit
Discharged 0.1 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
September 30, 2025
Chlorine, total residual
567% over limit
Discharged 0.22 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
1% over limit
Discharged 10.11 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Chlorine, total residual
203% over limit
Discharged 0.1 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
June 30, 2025
Chlorine, total residual
203% over limit
Discharged 0.1 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
May 31, 2025
Chlorine, total residual
627% over limit
Discharged 0.24 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
April 30, 2025
Nitrogen, ammonia total [as N]
30% over limit
Discharged 6.49 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
203% over limit
Discharged 0.1 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
76% over limit
Discharged 8.8 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
112% over limit
Discharged 0.07 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
February 28, 2025
Nitrogen, ammonia total [as N]
18% over limit
Discharged 5.9 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
173% over limit
Discharged 0.09 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
54% over limit
Discharged 4.18587996 kg/d against a permitted limit of 2.724 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Chlorine, total residual
1658% over limit
Discharged 0.58 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
December 31, 2024
Chlorine, total residual
1112% over limit
Discharged 0.4 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
November 30, 2024
Chlorine, total residual
355% over limit
Discharged 0.15 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
September 30, 2024
Chlorine, total residual
748% over limit
Discharged 0.28 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
August 31, 2024
Chlorine, total residual
233% over limit
Discharged 0.11 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)