HEBRON WWTP
NPDES ID: MD0059617
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.
This quarter: 1 effluent violation.
Violations
February 28, 2026
BOD, 5-day, 20 deg. C
120% over limit
Discharged 37.95439968 kg/d against a permitted limit of 17.25199986 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
42% over limit
Discharged 42.7 mg/L against a permitted limit of 30 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
73% over limit
Discharged 19.65819983 kg/d against a permitted limit of 11.3499999 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
Enterococci
29% over limit
Discharged 45.2 MPN/100mL against a permitted limit of 35 MPN/100mL (MAXIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
69% over limit
Discharged 76 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, 5-day, 20 deg. C
18% over limit
Discharged 35.5 mg/L against a permitted limit of 30 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
66% over limit
Discharged 18.88639984 kg/d against a permitted limit of 11.3499999 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
16% over limit
Discharged 52 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
64% over limit
Discharged 28.32959976 kg/d against a permitted limit of 17.25199986 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
16% over limit
Discharged 0.61776801 kg/d against a permitted limit of 0.53072001 kg/d (CUM TOTL)
DMR, Limited - Numeric Violation
November 30, 2025
Phosphorus, total [as P]
11% over limit
Discharged 0.59048801 kg/d against a permitted limit of 0.53072001 kg/d (CUM TOTL)
DMR, Limited - Numeric Violation
October 31, 2025
Phosphorus, total [as P]
1% over limit
Discharged 0.53692001 kg/d against a permitted limit of 0.53072001 kg/d (CUM TOTL)
DMR, Limited - Numeric Violation
September 30, 2025
BOD, 5-day, 20 deg. C
26% over limit
Discharged 21.79199982 kg/d against a permitted limit of 17.25199986 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
7% over limit
Discharged 48 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
8% over limit
Discharged 12.2579999 kg/d against a permitted limit of 11.3499999 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
Enterococci
46% over limit
Discharged 51 MPN/100mL against a permitted limit of 35 MPN/100mL (MAXIMUM)
DMR, Limited - Numeric Violation
June 30, 2025
Oxygen, dissolved [DO]
5% over limit
Discharged 5.2 mg/L against a permitted limit of 5.5 mg/L (MO AV MN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
18% over limit
Discharged 4.1 mg/L against a permitted limit of 5 mg/L (INST MIN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
20% over limit
Discharged 13.61999989 kg/d against a permitted limit of 11.3499999 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
13% over limit
Discharged 34 mg/L against a permitted limit of 30 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
April 30, 2025
BOD, 5-day, 20 deg. C
28% over limit
Discharged 14.52799988 kg/d against a permitted limit of 11.3499999 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
January 31, 2025
BOD, 5-day, 20 deg. C
48% over limit
Discharged 16.79799986 kg/d against a permitted limit of 11.3499999 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
23% over limit
Discharged 37 mg/L against a permitted limit of 30 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
69% over limit
Discharged 76 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Enterococci
6% over limit
Discharged 37 MPN/100mL against a permitted limit of 35 MPN/100mL (MAXIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
100% over limit
Discharged 34.50399971 kg/d against a permitted limit of 17.25199986 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
October 31, 2024
Enterococci
73% over limit
Discharged 60.5 MPN/100mL against a permitted limit of 35 MPN/100mL (MAXIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)