SEWERAGE DISTRICT #1 OF IBERIA PARISH & CITY OF NEW IBERIA- TETE BAYOU WWTP
NPDES ID: LA0065251
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: 21 effluent violations.
Violations
May 31, 2026
Solids, total suspended
148% over limit
Discharged 57 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
175% over limit
Discharged 27.5 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
192% over limit
Discharged 414.50199652 kg/d against a permitted limit of 142.102 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
188% over limit
Discharged 14.4 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
148% over limit
Discharged 235.17199802 kg/d against a permitted limit of 94.8859992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
193% over limit
Discharged 44 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
150% over limit
Discharged 25 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
185% over limit
Discharged 135.01959887 kg/d against a permitted limit of 47.3521996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
160% over limit
Discharged 39 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
135% over limit
Discharged 54 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
93% over limit
Discharged 29 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
7% over limit
Discharged 16 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
22% over limit
Discharged 28 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
33% over limit
Discharged 20 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
74% over limit
Discharged 40 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
110% over limit
Discharged 21 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
35% over limit
Discharged 191.13399839 kg/d against a permitted limit of 142.102 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
36% over limit
Discharged 129.38999891 kg/d against a permitted limit of 94.8859992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
60% over limit
Discharged 24 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
107% over limit
Discharged 31 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 11 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
17% over limit
Discharged 166.6179986 kg/d against a permitted limit of 142.102 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
126% over limit
Discharged 52 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
7% over limit
Discharged 16 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
87% over limit
Discharged 28 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, carbonaceous [5 day, 20 C]
40% over limit
Discharged 21 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
20% over limit
Discharged 12 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
73% over limit
Discharged 26 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
74% over limit
Discharged 40 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
388% over limit
Discharged 24.4 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
158% over limit
Discharged 122.12599897 kg/d against a permitted limit of 47.3521996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
195% over limit
Discharged 29.5 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
September 30, 2025
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 11 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
47% over limit
Discharged 22 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
458% over limit
Discharged 27.9 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
282% over limit
Discharged 38.2 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
203% over limit
Discharged 143.64559879 kg/d against a permitted limit of 47.3521996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
328% over limit
Discharged 21.38 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
157% over limit
Discharged 25.67 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
219% over limit
Discharged 150.81879873 kg/d against a permitted limit of 47.3521996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
195% over limit
Discharged 14.75 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
115% over limit
Discharged 101.83219914 kg/d against a permitted limit of 47.3521996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
80% over limit
Discharged 17.97 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
48% over limit
Discharged 69.91599941 kg/d against a permitted limit of 47.3521996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
64% over limit
Discharged 8.21 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
10% over limit
Discharged 11 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
19% over limit
Discharged 5.97 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total suspended
13% over limit
Discharged 26 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
20% over limit
Discharged 18 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
56% over limit
Discharged 221.55199814 kg/d against a permitted limit of 142.102 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
173% over limit
Discharged 41 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
17% over limit
Discharged 27 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
40% over limit
Discharged 21 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
129% over limit
Discharged 217.01199818 kg/d against a permitted limit of 94.8859992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
110% over limit
Discharged 21 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
39% over limit
Discharged 32 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
40% over limit
Discharged 21 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
27% over limit
Discharged 19 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
28% over limit
Discharged 181.59999847 kg/d against a permitted limit of 142.102 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
20% over limit
Discharged 12 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
5% over limit
Discharged 99.42599916 kg/d against a permitted limit of 94.8859992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
BOD, carbonaceous [5 day, 20 C]
47% over limit
Discharged 22 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
7% over limit
Discharged 16 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
BOD, carbonaceous [5 day, 20 C]
20% over limit
Discharged 12 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
187% over limit
Discharged 28.7 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
316% over limit
Discharged 20.8 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
118% over limit
Discharged 103.23959913 kg/d against a permitted limit of 47.3521996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
112% over limit
Discharged 21.2 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 11 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
136% over limit
Discharged 11.82 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
101% over limit
Discharged 95.3853992 kg/d against a permitted limit of 47.3521996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
24% over limit
Discharged 58.70219951 kg/d against a permitted limit of 47.3521996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
43% over limit
Discharged 14.29 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
141% over limit
Discharged 12.04 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)