BENTON-DECATUR COUNTIES SPECIAL SEWER DISTRICT
NPDES ID: TN0078042
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: 11 effluent violations.
Violations
June 30, 2026
BOD, carbonaceous [5 day, 20 C]
26% over limit
Discharged 16.57099986 kg/d against a permitted limit of 13.16599989 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
11% over limit
Discharged 16.57099986 kg/d against a permitted limit of 14.98199987 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
6% over limit
Discharged 37 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
26% over limit
Discharged 56 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
April 30, 2026
BOD, carbonaceous [5 day, 20 C]
54% over limit
Discharged 54 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
25% over limit
Discharged 16.43479986 kg/d against a permitted limit of 13.16599989 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
35% over limit
Discharged 54 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 16.43479986 kg/d against a permitted limit of 14.98199987 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous, percent removal
3% over limit
Discharged 64 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
E. coli
22% over limit
Discharged 154.3 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
51% over limit
Discharged 37.67 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, carbonaceous [5 day, 20 C]
3% over limit
Discharged 36 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, carbonaceous [5 day, 20 C]
117% over limit
Discharged 76 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
41% over limit
Discharged 13.43839989 kg/d against a permitted limit of 9.53399992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
185% over limit
Discharged 71.33 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
6% over limit
Discharged 13.98319988 kg/d against a permitted limit of 13.16599989 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
90% over limit
Discharged 76 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, carbonaceous [5 day, 20 C]
55% over limit
Discharged 62 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
397% over limit
Discharged 2420 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
77% over limit
Discharged 62 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
28% over limit
Discharged 161.2 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
82% over limit
Discharged 45.6 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
E. coli
271% over limit
Discharged 467 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
4% over limit
Discharged 13.71079988 kg/d against a permitted limit of 13.16599989 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
256% over limit
Discharged 1733 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
4% over limit
Discharged 83 mg/L against a permitted limit of 80 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
103% over limit
Discharged 81 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
643% over limit
Discharged 935.6 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
147% over limit
Discharged 61.8 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
131% over limit
Discharged 81 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
26% over limit
Discharged 11.9855999 kg/d against a permitted limit of 9.53399992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
46% over limit
Discharged 19.24959984 kg/d against a permitted limit of 13.16599989 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
54% over limit
Discharged 61.4 mg/L against a permitted limit of 40 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
38% over limit
Discharged 83 mg/L against a permitted limit of 60 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
4868% over limit
Discharged 24196 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
28% over limit
Discharged 19.24959984 kg/d against a permitted limit of 14.98199987 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
E. coli
249% over limit
Discharged 440 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
E. coli
231% over limit
Discharged 1610 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
0% over limit
Discharged 186 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 381 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 221 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 0.0012 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
8% over limit
Discharged 43 mg/L against a permitted limit of 40 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.0005 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
28% over limit
Discharged 102 mg/L against a permitted limit of 80 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 364 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
70% over limit
Discharged 102 mg/L against a permitted limit of 60 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
June 30, 2025
BOD, carbonaceous [5 day, 20 C]
20% over limit
Discharged 48 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
12% over limit
Discharged 28 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
37% over limit
Discharged 48 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
710% over limit
Discharged 1020.3 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
E. coli
485% over limit
Discharged 2851 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
BOD, carbonaceous [5 day, 20 C]
114% over limit
Discharged 75 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
397% over limit
Discharged 2420 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
54% over limit
Discharged 23.06319981 kg/d against a permitted limit of 14.98199987 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
75% over limit
Discharged 23.06319981 kg/d against a permitted limit of 13.16599989 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
635% over limit
Discharged 926 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
19% over limit
Discharged 29.75 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
88% over limit
Discharged 75 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
SSO, Wet Weather
Limit violation
Discharged 0.0329 occur/d against a permitted limit of 0 occur/d (MO TOTAL)
DMR, Limited - Numeric Violation
E. coli
3459% over limit
Discharged 17330 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
1948% over limit
Discharged 2579.9 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, carbonaceous [5 day, 20 C]
15% over limit
Discharged 46 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
31% over limit
Discharged 46 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
324% over limit
Discharged 2064 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
710% over limit
Discharged 1020.9 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
22% over limit
Discharged 30.5 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
28% over limit
Discharged 77 mg/L against a permitted limit of 60 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
1159% over limit
Discharged 6131 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
16% over limit
Discharged 46.3 mg/L against a permitted limit of 40 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
2020% over limit
Discharged 2671.2 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
Solids, total suspended
45% over limit
Discharged 32.86959972 kg/d against a permitted limit of 22.69999981 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
8% over limit
Discharged 32.86959972 kg/d against a permitted limit of 30.41799974 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
30% over limit
Discharged 78 mg/L against a permitted limit of 60 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
33% over limit
Discharged 53.2 mg/L against a permitted limit of 40 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
224% over limit
Discharged 1576 MPN/100mL against a permitted limit of 487 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
BOD, carbonaceous [5 day, 20 C]
6% over limit
Discharged 26.5 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
46% over limit
Discharged 51 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 42.8 mg/L against a permitted limit of 40 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
28% over limit
Discharged 51 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2024
Solids, total suspended
93% over limit
Discharged 116 mg/L against a permitted limit of 60 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
60% over limit
Discharged 56 mg/L against a permitted limit of 35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
40% over limit
Discharged 56 mg/L against a permitted limit of 40 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
22% over limit
Discharged 48.8 mg/L against a permitted limit of 40 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
45% over limit
Discharged 116 mg/L against a permitted limit of 80 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)