DOW SILICONES CORP
NPDES ID: KY0097349
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
Violations
March 31, 2026
pH
0% over limit
Discharged 10.8 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
January 31, 2026
Zinc, total recoverable
46% over limit
Discharged 0.175 mg/L against a permitted limit of 0.12 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
25% over limit
Discharged 0.0175 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Copper, total recoverable
71% over limit
Discharged 0.024 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
8% over limit
Discharged 0.13 mg/L against a permitted limit of 0.12 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Copper, total recoverable
43% over limit
Discharged 0.02 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Zinc, total recoverable
33% over limit
Discharged 0.16 mg/L against a permitted limit of 0.12 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
63% over limit
Discharged 49 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
14% over limit
Discharged 0.016 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Zinc, total recoverable
283% over limit
Discharged 0.46 mg/L against a permitted limit of 0.12 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
64% over limit
Discharged 0.023 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2024
Copper, total recoverable
1114% over limit
Discharged 0.17 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
250% over limit
Discharged 0.42 mg/L against a permitted limit of 0.12 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Copper, total recoverable
381% over limit
Discharged 0.0673 mg/L against a permitted limit of 0.014 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
33% over limit
Discharged 0.16 mg/L against a permitted limit of 0.12 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)