LAMAR WWTF
NPDES ID: MO0044172
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: 1 effluent violation.
Violations
March 31, 2026
Zinc, total recoverable
152% over limit
Discharged 0.16400001 mg/L against a permitted limit of 0.0651 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
267% over limit
Discharged 9.9 mg/L against a permitted limit of 2.7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
32% over limit
Discharged 0.0859 mg/L against a permitted limit of 0.0651 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
75% over limit
Discharged 0.014 mg/L against a permitted limit of 0.008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Zinc, total recoverable
140% over limit
Discharged 0.15600001 mg/L against a permitted limit of 0.0651 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
19% over limit
Discharged 0.0095 mg/L against a permitted limit of 0.008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Zinc, total recoverable
141% over limit
Discharged 0.15700001 mg/L against a permitted limit of 0.0651 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Zinc, total recoverable
147% over limit
Discharged 0.16100001 mg/L against a permitted limit of 0.0651 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
20% over limit
Discharged 0.0096 mg/L against a permitted limit of 0.008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)