NPDES ID: CTSIU0138
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
March 31, 2026
Zinc, total [as Zn]
53% over limit
Discharged 1.1 mg/L against a permitted limit of 0.72 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
134% over limit
Discharged 1.1 mg/L against a permitted limit of 0.47 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Zinc, total [as Zn]
79% over limit
Discharged 0.84 mg/L against a permitted limit of 0.47 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
17% over limit
Discharged 0.84 mg/L against a permitted limit of 0.72 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Zinc, total [as Zn]
119% over limit
Discharged 1.03 mg/L against a permitted limit of 0.47 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
43% over limit
Discharged 1.03 mg/L against a permitted limit of 0.72 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Zinc, total [as Zn]
93% over limit
Discharged 0.906 mg/L against a permitted limit of 0.47 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
26% over limit
Discharged 0.906 mg/L against a permitted limit of 0.72 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)