NPDES ID: AR0052680
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
Violations
January 31, 2026
Nitrogen, ammonia total [as N]
124% over limit
Discharged 26.9 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
163% over limit
Discharged 39.4 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
71% over limit
Discharged 39.4 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
49% over limit
Discharged 26.9 mg/L against a permitted limit of 18 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
56% over limit
Discharged 28 mg/L against a permitted limit of 18 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
92% over limit
Discharged 23 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Oxygen, dissolved [DO]
14% over limit
Discharged 3.46 mg/L against a permitted limit of 4 mg/L (INST MIN)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
185% over limit
Discharged 0.51756 kg/d against a permitted limit of 0.1816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
355% over limit
Discharged 0.82627999 kg/d against a permitted limit of 0.1816 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2416 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
89% over limit
Discharged 28.3 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
10% over limit
Discharged 3.62 mg/L against a permitted limit of 4 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
567% over limit
Discharged 34.7 mg/L against a permitted limit of 5.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
567% over limit
Discharged 34.7 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
115% over limit
Discharged 43 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
43% over limit
Discharged 43 mg/L against a permitted limit of 30 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
23% over limit
Discharged 28.3 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2416 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
270% over limit
Discharged 0.67191999 kg/d against a permitted limit of 0.1816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
121% over limit
Discharged 44.13 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2419 MPN/100mL against a permitted limit of 200 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
70% over limit
Discharged 25.53 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
804% over limit
Discharged 47 mg/L against a permitted limit of 5.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
69% over limit
Discharged 1.23 mg/L against a permitted limit of 4 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
180% over limit
Discharged 84 mg/L against a permitted limit of 30 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
2% over limit
Discharged 0.88257599 kg/d against a permitted limit of 0.86259999 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
63% over limit
Discharged 37.6 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
508% over limit
Discharged 1.10321999 kg/d against a permitted limit of 0.1816 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
646% over limit
Discharged 38.8 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2419 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
74% over limit
Discharged 1.97035998 kg/d against a permitted limit of 1.13499999 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
Coliform, fecal general
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
848% over limit
Discharged 49.3 mg/L against a permitted limit of 5.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
225% over limit
Discharged 0.5902 kg/d against a permitted limit of 0.1816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
546% over limit
Discharged 33.6 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 200 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
560% over limit
Discharged 1.19855999 kg/d against a permitted limit of 0.1816 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
296% over limit
Discharged 20.6 mg/L against a permitted limit of 5.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
296% over limit
Discharged 20.6 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
52% over limit
Discharged 1.92 mg/L against a permitted limit of 4 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
143% over limit
Discharged 0.44038 kg/d against a permitted limit of 0.1816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
218% over limit
Discharged 0.57658 kg/d against a permitted limit of 0.1816 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
63% over limit
Discharged 8.45 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
117% over limit
Discharged 11.3 mg/L against a permitted limit of 5.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
118% over limit
Discharged 0.39498 kg/d against a permitted limit of 0.1816 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Coliform, fecal general
61% over limit
Discharged 322 MPN/100mL against a permitted limit of 200 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
410% over limit
Discharged 102 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
240% over limit
Discharged 3.85899997 kg/d against a permitted limit of 1.13499999 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
100% over limit
Discharged 1.54359999 kg/d against a permitted limit of 0.77179999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
240% over limit
Discharged 102 mg/L against a permitted limit of 30 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
BOD, carbonaceous [5 day, 20 C]
62% over limit
Discharged 0.95339999 kg/d against a permitted limit of 0.5902 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
128% over limit
Discharged 41.1 mg/L against a permitted limit of 18 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
53% over limit
Discharged 0.69461999 kg/d against a permitted limit of 0.454 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
23% over limit
Discharged 0.83535999 kg/d against a permitted limit of 0.68099999 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
32% over limit
Discharged 1.13499999 kg/d against a permitted limit of 0.86259999 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
207% over limit
Discharged 36.8 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
27% over limit
Discharged 25.3 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
48% over limit
Discharged 2.1 mg/L against a permitted limit of 4 mg/L (INST MIN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
230% over limit
Discharged 49.5 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
234% over limit
Discharged 76.8 mg/L against a permitted limit of 23 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
835% over limit
Discharged 1.69795999 kg/d against a permitted limit of 0.1816 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
475% over limit
Discharged 29.9 mg/L against a permitted limit of 5.2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 200 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
315% over limit
Discharged 21.6 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
350% over limit
Discharged 0.81719999 kg/d against a permitted limit of 0.1816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (6 hours ago)