NPDES ID: MD3375B07
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: 10 effluent violations.
Violations
May 31, 2026
BOD, 5-day, 20 deg. C
580% over limit
Discharged 204 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
140% over limit
Discharged 72 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, total, percent removal [%]
0% over limit
Discharged 40.2 % against a permitted limit of 50 % (MINIMUM)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
27% over limit
Discharged 0.004968 MGD against a permitted limit of 0.003905 MGD (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
147% over limit
Discharged 74 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
120% over limit
Discharged 66 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, 20 deg. C
13% over limit
Discharged 34 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, total, percent removal [%]
0% over limit
Discharged 39.7 % against a permitted limit of 50 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
120% over limit
Discharged 66 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, 5-day, 20 deg. C
37% over limit
Discharged 41 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Flow, in conduit or thru treatment plant
3% over limit
Discharged 0.004008 MGD against a permitted limit of 0.003905 MGD (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Flow, in conduit or thru treatment plant
90% over limit
Discharged 0.007438 MGD against a permitted limit of 0.003905 MGD (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Flow, in conduit or thru treatment plant
40% over limit
Discharged 0.005485 MGD against a permitted limit of 0.003905 MGD (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
BOD, 5-day, 20 deg. C
23% over limit
Discharged 36.85 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 35.25 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
56% over limit
Discharged 46.82 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, 5-day, 20 deg. C
99% over limit
Discharged 59.83 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
BOD, 5-day, 20 deg. C
14% over limit
Discharged 34.23 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, total [as N]
3% over limit
Discharged 10.3 mg/L against a permitted limit of 10 mg/L (AN AV MX)
DMR, Limited - Numeric Violation
November 30, 2024
BOD, 5-day, 20 deg. C
62% over limit
Discharged 48.53 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Flow, in conduit or thru treatment plant
9% over limit
Discharged 0.00427 MGD against a permitted limit of 0.003905 MGD (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
8% over limit
Discharged 32.38 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
BOD, 5-day, 20 deg. C
71% over limit
Discharged 51.28 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.003905 MGD (MO AVG)
DMR, Limited - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)