CHEMETCO INC, ESTATE OF
NPDES ID: IL0025747
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: 5 effluent violations.
Violations
June 30, 2026
Copper, total [as Cu]
141% over limit
Discharged 0.0852 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2026
Zinc, total [as Zn]
68% over limit
Discharged 0.382 mg/L against a permitted limit of 0.2272 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
322% over limit
Discharged 0.149 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Copper, total [as Cu]
271% over limit
Discharged 0.131 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
27% over limit
Discharged 0.288 mg/L against a permitted limit of 0.2272 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Copper, total [as Cu]
21% over limit
Discharged 0.0427 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Zinc, total [as Zn]
130% over limit
Discharged 0.523 mg/L against a permitted limit of 0.2272 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Zinc, total [as Zn]
657% over limit
Discharged 1.72 mg/L against a permitted limit of 0.2272 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
331% over limit
Discharged 0.152 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Zinc, total [as Zn]
72% over limit
Discharged 0.39 mg/L against a permitted limit of 0.2272 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Zinc, total [as Zn]
4% over limit
Discharged 0.236 mg/L against a permitted limit of 0.2272 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
9% over limit
Discharged 0.0385 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Zinc, total [as Zn]
32% over limit
Discharged 0.301 mg/L against a permitted limit of 0.2272 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
285% over limit
Discharged 0.136 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Copper, total [as Cu]
94% over limit
Discharged 0.0684 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Copper, total [as Cu]
40% over limit
Discharged 0.0493 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
Copper, total [as Cu]
48% over limit
Discharged 0.0524 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Copper, total [as Cu]
13% over limit
Discharged 0.0399 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2024
Copper, total [as Cu]
91% over limit
Discharged 0.0673 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Copper, total [as Cu]
18% over limit
Discharged 0.0415 mg/L against a permitted limit of 0.0353 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (30DA AVG)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)