ALLNEX USA INCORPORATED

NPDES ID: CT0000086

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: 4 effluent violations.

Violations

June 30, 2026

Solids, total suspended

23% over limit

Discharged 37 mg/L against a permitted limit of 30 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

430% over limit

Discharged 265 mg/L against a permitted limit of 50 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Solids, total suspended

77% over limit

Discharged 772 kg/d against a permitted limit of 435 kg/d (DAILY MX)

DMR, Limited - Numeric Violation

April 30, 2026

Formaldehyde

29% over limit

Discharged 0.904 mg/L against a permitted limit of 0.703 mg/L (MO AVG)

DMR, Limited - Numeric Violation

March 31, 2026

Formaldehyde

13% over limit

Discharged 2 mg/L against a permitted limit of 1.77 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Formaldehyde

30% over limit

Discharged 4.07 kg/d against a permitted limit of 3.12 kg/d (MO AVG)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (6 days ago)