LEHIGH NORTHWEST CEMENT CO
NPDES ID: WA0001198
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: 2 effluent violations.
Violations
May 31, 2026
Total Petroleum Hydrocarbons - Diesel
Limit violation
Discharged 0.5 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Total Petroleum Hydrocarbons - Diesel
Limit violation
Discharged 0.5 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Total Petroleum Hydrocarbons - Diesel
Limit violation
Discharged 0.5 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Total Petroleum Hydrocarbons - Diesel
Limit violation
Discharged 0.5 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2024
Turbidity
0% over limit
Discharged 12 NTU against a permitted limit of 10 NTU (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)