UTILITIES INC OF LOUISIANA- ROYAL GARDEN SUBDIVISION
NPDES ID: LAG570638
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: 5 effluent violations.
Violations
June 30, 2026
Nitrogen, ammonia total [as N]
35% over limit
Discharged 6.74 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, ammonia total [as N]
47% over limit
Discharged 7.36 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
12% over limit
Discharged 0.11163 MGD against a permitted limit of 0.1 MGD (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
43% over limit
Discharged 14.3 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
3% over limit
Discharged 0.10336 MGD against a permitted limit of 0.1 MGD (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Flow, in conduit or thru treatment plant
82% over limit
Discharged 0.1819 MGD against a permitted limit of 0.1 MGD (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Flow, in conduit or thru treatment plant
22% over limit
Discharged 0.12212 MGD against a permitted limit of 0.1 MGD (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
5% over limit
Discharged 5.27 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 33 mg/L against a permitted limit of 30 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
65% over limit
Discharged 33 mg/L against a permitted limit of 20 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
5% over limit
Discharged 21 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
145% over limit
Discharged 24.45 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Flow, in conduit or thru treatment plant
93% over limit
Discharged 0.193 MGD against a permitted limit of 0.1 MGD (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (21 hours ago)