DELHI, TOWN OF - WWTP
NPDES ID: LA0039802
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
May 31, 2026
Solids, total suspended
13% over limit
Discharged 26 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
32% over limit
Discharged 52.83651956 kg/d against a permitted limit of 39.95199966 kg/d (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
22% over limit
Discharged 18.24 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
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
81% over limit
Discharged 72.39029939 kg/d against a permitted limit of 39.95199966 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
175% over limit
Discharged 109.91339908 kg/d against a permitted limit of 39.95199966 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
343% over limit
Discharged 102 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
203% over limit
Discharged 45.49 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
26% over limit
Discharged 29 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
41% over limit
Discharged 21.12 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
52% over limit
Discharged 60.87231949 kg/d against a permitted limit of 39.95199966 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
7012% over limit
Discharged 30026.6517477 kg/d against a permitted limit of 422.21999645 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
4146% over limit
Discharged 1696.55712574 kg/d against a permitted limit of 39.95199966 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
3530% over limit
Discharged 544.53 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
6178% over limit
Discharged 1444 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
1006% over limit
Discharged 3787.46772818 kg/d against a permitted limit of 342.31599712 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
450% over limit
Discharged 2200 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
24% over limit
Discharged 18.65 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
46% over limit
Discharged 58.45249951 kg/d against a permitted limit of 39.95199966 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
91% over limit
Discharged 44 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
April 30, 2025
BOD, 5-day, 20 deg. C
29% over limit
Discharged 19.4 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
9% over limit
Discharged 25 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2025
BOD, 5-day, 20 deg. C
28% over limit
Discharged 33.65047972 kg/d against a permitted limit of 26.33199978 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
14% over limit
Discharged 45.49533962 kg/d against a permitted limit of 39.95199966 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
14% over limit
Discharged 11.41 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
9% over limit
Discharged 25 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
3% over limit
Discharged 15.42 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
31% over limit
Discharged 19.67 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
41% over limit
Discharged 56.16887953 kg/d against a permitted limit of 39.95199966 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
97% over limit
Discharged 29.6 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
61% over limit
Discharged 37 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
22% over limit
Discharged 18.25 mg/L against a permitted limit of 15 mg/L (MO 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
November 30, 2024
Solids, total suspended
47% over limit
Discharged 22.03 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
70% over limit
Discharged 39 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
October 31, 2024
BOD, 5-day, 20 deg. C
81% over limit
Discharged 18.11 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
48% over limit
Discharged 22.17 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
August 31, 2024
BOD, 5-day, 20 deg. C
6% over limit
Discharged 10.55 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
9% over limit
Discharged 25 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
8% over limit
Discharged 16.22 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
4% over limit
Discharged 207 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
78% over limit
Discharged 710 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
July 31, 2024
Coliform, fecal general
10% over limit
Discharged 440 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
25% over limit
Discharged 12.51 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
130% over limit
Discharged 53 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
12% over limit
Discharged 16.82 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
145% over limit
Discharged 36.81 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
33% over limit
Discharged 53.26327955 kg/d against a permitted limit of 39.95199966 kg/d (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (25 days ago)