NPDES ID: MD0069949
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
Violations
March 31, 2026
Nitrogen, ammonia total [as N]
173% over limit
Discharged 8.2 mg/L against a permitted limit of 3 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
29% over limit
Discharged 14.22 mg/L against a permitted limit of 11 mg/L (MX DA AV)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
152% over limit
Discharged 7.55 mg/L against a permitted limit of 3 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
65% over limit
Discharged 18.14 mg/L against a permitted limit of 11 mg/L (MX DA AV)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
44% over limit
Discharged 0.35866 kg/d against a permitted limit of 0.2497 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
696% over limit
Discharged 23.88 mg/L against a permitted limit of 3 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
238% over limit
Discharged 37.18 mg/L against a permitted limit of 11 mg/L (MX DA AV)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
101% over limit
Discharged 6.02 mg/L against a permitted limit of 3 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
50% over limit
Discharged 16.46 mg/L against a permitted limit of 11 mg/L (MX DA AV)
DMR, Limited - Numeric Violation
October 31, 2025
Phosphorus, total [as P]
30% over limit
Discharged 0.13 mg/L against a permitted limit of 0.1 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
53% over limit
Discharged 0.23 mg/L against a permitted limit of 0.15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
July 31, 2025
Phosphorus, total [as P]
33% over limit
Discharged 0.2 mg/L against a permitted limit of 0.15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
April 30, 2025
Phosphorus, total [as P]
247% over limit
Discharged 0.52 mg/L against a permitted limit of 0.15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
155% over limit
Discharged 0.255 mg/L against a permitted limit of 0.1 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
18% over limit
Discharged 3.54 mg/L against a permitted limit of 3 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
43% over limit
Discharged 0.01816 kg/d against a permitted limit of 0.012712 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
45% over limit
Discharged 15.9 mg/L against a permitted limit of 11 mg/L (MX DA AV)
DMR, Limited - Numeric Violation
March 31, 2025
Phosphorus, total [as P]
40% over limit
Discharged 0.14 mg/L against a permitted limit of 0.1 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
February 28, 2025
Phosphorus, total [as P]
89% over limit
Discharged 0.024062 kg/d against a permitted limit of 0.012712 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
400% over limit
Discharged 0.5 mg/L against a permitted limit of 0.1 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1007% over limit
Discharged 1.66 mg/L against a permitted limit of 0.15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
January 31, 2025
Phosphorus, total [as P]
27% over limit
Discharged 0.19 mg/L against a permitted limit of 0.15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
December 31, 2024
Phosphorus, total [as P]
13% over limit
Discharged 0.17 mg/L against a permitted limit of 0.15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
October 31, 2024
Phosphorus, total [as P]
20% over limit
Discharged 0.18 mg/L against a permitted limit of 0.15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
150% over limit
Discharged 2.5 mg/L against a permitted limit of 1 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
September 30, 2024
Phosphorus, total [as P]
7% over limit
Discharged 0.16 mg/L against a permitted limit of 0.15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)