CAMP ONDESSONK STP
NPDES ID: IL0048381
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: 11 effluent violations.
Violations
June 30, 2026
Nitrogen, ammonia total [as N]
339% over limit
Discharged 1.37561999 kg/d against a permitted limit of 0.31326 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
791% over limit
Discharged 1.37561999 kg/d against a permitted limit of 0.15436 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2600% over limit
Discharged 40.5 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1250% over limit
Discharged 40.5 mg/L against a permitted limit of 3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
372% over limit
Discharged 47.2 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
2925% over limit
Discharged 12098 MPN/100mL against a permitted limit of 400 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
20% over limit
Discharged 0.06 mg/L against a permitted limit of 0.05 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
136% over limit
Discharged 47.2 mg/L against a permitted limit of 20 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
10% over limit
Discharged 5.4 mg/L against a permitted limit of 6 mg/L (MN WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
183% over limit
Discharged 34 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
42% over limit
Discharged 34 mg/L against a permitted limit of 24 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
100% over limit
Discharged 24 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
0% over limit
Discharged 17.8 mg/L against a permitted limit of 24 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0.46762 kg/d against a permitted limit of 2.04299998 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0.46762 kg/d against a permitted limit of 4.08599997 kg/d (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
48% over limit
Discharged 17.8 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
48% over limit
Discharged 17.8 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Oxygen, dissolved [DO]
10% over limit
Discharged 5.41 mg/L against a permitted limit of 6 mg/L (MN WK AV)
DMR, Limited - Numeric Violation
May 31, 2025
Oxygen, dissolved [DO]
8% over limit
Discharged 5.5 mg/L against a permitted limit of 6 mg/L (MN WK AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (8 hours ago)