STERLINGTON, TOWN OF
NPDES ID: LA0046809
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: 18 effluent violations, 30 reporting violations.
Violations
June 30, 2026
BOD, 5-day, 20 deg. C
137% over limit
Discharged 40.90539966 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
2229% over limit
Discharged 4658 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
5% over limit
Discharged 44.67359962 kg/d against a permitted limit of 42.67599964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
1650% over limit
Discharged 7000 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
May 31, 2026
Coliform, fecal general
5427% over limit
Discharged 11054 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
175% over limit
Discharged 82.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
30% over limit
Discharged 58.7 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
419% over limit
Discharged 221.55199814 kg/d against a permitted limit of 42.67599964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
136% over limit
Discharged 106 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
521% over limit
Discharged 107.1439991 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
7350% over limit
Discharged 29800 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
33% over limit
Discharged 39.9 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
249% over limit
Discharged 148.91199875 kg/d against a permitted limit of 42.67599964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 17800 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
253% over limit
Discharged 60.83599949 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 17800 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
38% over limit
Discharged 62 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
107% over limit
Discharged 62 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Phosphorus, total [as P]
0% over limit
Discharged 3.3 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 8.39899993 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
11% over limit
Discharged 33.3 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
11% over limit
Discharged 33.3 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
324% over limit
Discharged 73.09399939 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
324% over limit
Discharged 73.09399939 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
0% over limit
Discharged 26 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.6653 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 26 mg/L against a permitted limit of 0 mg/L (WKLY AVG)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 29.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 3.3 mg/L against a permitted limit of 0 mg/L (WKLY AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.6725 MGD against a permitted limit of 0 MGD (WKLY AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.86 SU against a permitted limit of 9 SU (INST MAX)
DMR, Limited - Overdue
Solids, total suspended
97% over limit
Discharged 83.98999929 kg/d against a permitted limit of 42.67599964 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
97% over limit
Discharged 83.98999929 kg/d against a permitted limit of 42.67599964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
0% over limit
Discharged 66.28399944 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0.11 SU against a permitted limit of 6 SU (INST MIN)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0.11 SU against a permitted limit of 6 SU (INST MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 38.6 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
Coliform, fecal general
518% over limit
Discharged 1235 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Overdue
Coliform, fecal general
518% over limit
Discharged 1235 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 218000 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Overdue
Coliform, fecal general
Limit violation
Discharged 218000 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 38.6 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
February 28, 2026
Coliform, fecal general
Limit violation
Discharged 38055 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Overdue
Coliform, fecal general
Limit violation
Discharged 38055 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
42% over limit
Discharged 64 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
42% over limit
Discharged 64 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.238 MGD against a permitted limit of 0 MGD (WKLY AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 39.18019967 kg/d against a permitted limit of 42.67599964 kg/d (MO AVG)
DMR, Limited - Overdue
Coliform, fecal general
Limit violation
Discharged 43100 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Overdue
Coliform, fecal general
Limit violation
Discharged 43100 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 7.62 SU against a permitted limit of 9 SU (INST MAX)
DMR, Limited - Overdue
Solids, total suspended
47% over limit
Discharged 44 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
47% over limit
Discharged 44 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 15.02739987 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 16.95 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.233 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.57 SU against a permitted limit of 6 SU (INST MIN)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 21.4 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
December 31, 2025
Solids, total suspended
2% over limit
Discharged 30.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
BOD, 5-day, 20 deg. C
6% over limit
Discharged 18.34159985 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Solids, total suspended
3% over limit
Discharged 31 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
BOD, 5-day, 20 deg. C
20% over limit
Discharged 20.70239983 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
38% over limit
Discharged 62 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
42% over limit
Discharged 42.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
2% over limit
Discharged 30.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
BOD, 5-day, 20 deg. C
179% over limit
Discharged 48.1239996 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
38% over limit
Discharged 62 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 50.39399958 kg/d against a permitted limit of 42.67599964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
85% over limit
Discharged 55.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
82% over limit
Discharged 54.6 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
34% over limit
Discharged 60.2 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
28% over limit
Discharged 54.57079954 kg/d against a permitted limit of 42.67599964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
44% over limit
Discharged 24.87919979 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
19% over limit
Discharged 53.4 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
65% over limit
Discharged 49.6 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
BOD, 5-day, 20 deg. C
22% over limit
Discharged 54.9 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
58% over limit
Discharged 47.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
33% over limit
Discharged 40 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 50 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
75% over limit
Discharged 30.14559975 kg/d against a permitted limit of 17.252 kg/d (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Coliform, fecal general
2450% over limit
Discharged 10200 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
1% over limit
Discharged 202 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (9 hours ago)