BROOKLYN WWTP
NPDES ID: IN0039772
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: 6 effluent violations.
Violations
May 31, 2026
Chlorine, total residual
2550% over limit
Discharged 1.59 mg/L against a permitted limit of 0.06 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
22% over limit
Discharged 3.11 mg/L against a permitted limit of 4 mg/L (DLYAVMIN)
DMR, Limited - Numeric Violation
Chlorine, total residual
855% over limit
Discharged 0.573 mg/L against a permitted limit of 0.06 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Oxygen, dissolved [DO]
18% over limit
Discharged 3.27 mg/L against a permitted limit of 4 mg/L (DLYAVMIN)
DMR, Limited - Numeric Violation
Chlorine, total residual
1867% over limit
Discharged 1.18 mg/L against a permitted limit of 0.06 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
470% over limit
Discharged 0.342 mg/L against a permitted limit of 0.06 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 1.74472199 kg/d against a permitted limit of 32.1886 kg/d (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.13511 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Flow, total
0% over limit
Discharged 0.12446071 MGD against a permitted limit of 0 MGD (MO TOTAL)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.321432 kg/d against a permitted limit of 13.12059989 kg/d (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 1.11593199 kg/d against a permitted limit of 19.70359983 kg/d (MX WK AV)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 2.58325998 kg/d against a permitted limit of 51.529 kg/d (MX WK AV)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 4.27032396 kg/d against a permitted limit of 38.6354 kg/d (MO AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
29% over limit
Discharged 1.294 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
0% over limit
Discharged 0.71323399 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 6.92803994 kg/d against a permitted limit of 57.9758 kg/d (MX WK AV)
DMR, Limited - Overdue
January 31, 2026
Phosphorus, total [as P]
38% over limit
Discharged 1.3785 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Phosphorus, total [as P]
90% over limit
Discharged 1.895 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 4.4 SU against a permitted limit of 6 SU (DAILY MN)
DMR, Limited - Numeric Violation
November 30, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (DAILY MN)
DMR, Limited - Overdue
Phosphorus, total [as P]
31% over limit
Discharged 1.314 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Overdue
October 31, 2025
Phosphorus, total [as P]
94% over limit
Discharged 1.939 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Phosphorus, total [as P]
36% over limit
Discharged 1.362 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Chlorine, total residual
0% over limit
Discharged 2.23 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 5.57965995 kg/d against a permitted limit of 51.529 kg/d (MX WK AV)
DMR, Limited - Overdue
February 28, 2025
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
December 31, 2024
Oxygen, dissolved [DO]
0% over limit
Discharged 5.24 mg/L against a permitted limit of 4 mg/L (DLYAVMIN)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
August 31, 2024
Nitrogen, ammonia total [as N]
7% over limit
Discharged 15.43 mg/L against a permitted limit of 14.4 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)