ATWOOD STP, VILLAGE OF
NPDES ID: IL0025097
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, 2 single-event violations.
Violations
May 31, 2026
Coliform, fecal general
2650% over limit
Discharged 11000 MPN/100mL against a permitted limit of 400 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
125% over limit
Discharged 27 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
50% over limit
Discharged 6.54213995 kg/d against a permitted limit of 4.35839996 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
48% over limit
Discharged 33.59599972 kg/d against a permitted limit of 22.69999981 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
65% over limit
Discharged 3.8 mg/L against a permitted limit of 2.3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
88% over limit
Discharged 45 mg/L against a permitted limit of 24 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)