MORRISTOWN WWTP
NPDES ID: IN0023841
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, 5 single-event violations.
Violations
May 31, 2026
E. coli, colony forming units [CFU]
86% over limit
Discharged 437 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
BOD, carbonaceous [5 day, 20 C]
260% over limit
Discharged 327.01619725 kg/d against a permitted limit of 90.93619924 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
156% over limit
Discharged 39.9 mg/L against a permitted limit of 15.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
505% over limit
Discharged 242.1 mg/L against a permitted limit of 40 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
60% over limit
Discharged 91.07239923 kg/d against a permitted limit of 56.84079952 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
157% over limit
Discharged 64.3 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
41% over limit
Discharged 49.89459958 kg/d against a permitted limit of 35.4573997 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 32.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
49% over limit
Discharged 15.5 mg/L against a permitted limit of 10.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
81% over limit
Discharged 81.4 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
2% over limit
Discharged 24.1527998 kg/d against a permitted limit of 23.6533998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
59% over limit
Discharged 16.5 mg/L against a permitted limit of 10.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
191% over limit
Discharged 264.72739778 kg/d against a permitted limit of 90.93619924 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
31% over limit
Discharged 20.5 mg/L against a permitted limit of 15.6 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
307% over limit
Discharged 101.8 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
187% over limit
Discharged 163.30379863 kg/d against a permitted limit of 56.84079952 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
21% over limit
Discharged 36.3 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
289% over limit
Discharged 155.5 mg/L against a permitted limit of 40 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
May 31, 2025
Chlorine, total residual
17% over limit
Discharged 0.07 mg/L against a permitted limit of 0.06 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)