THORNTON WATER PROJECT SEGMENT C (NORTH REACH) - DW

NPDES ID: COG081274

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: 7 effluent violations.

Violations

May 31, 2026

Solids, total suspended

29% over limit

Discharged 38.67 mg/L against a permitted limit of 30 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

87% over limit

Discharged 84 mg/L against a permitted limit of 45 mg/L (MX 7D AV)

DMR, Limited - Numeric Violation

April 30, 2026

Solids, total suspended

36% over limit

Discharged 40.75 mg/L against a permitted limit of 30 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

209% over limit

Discharged 139 mg/L against a permitted limit of 45 mg/L (MX 7D AV)

DMR, Limited - Numeric Violation

Solids, total suspended

76% over limit

Discharged 52.67 mg/L against a permitted limit of 30 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

2% over limit

Discharged 46 mg/L against a permitted limit of 45 mg/L (MX 7D AV)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (5 days ago)