NPDES ID: MO0097543
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: 5 effluent violations.
Violations
June 30, 2026
Iron, total recoverable
12% over limit
Discharged 2.0100001 mg/L against a permitted limit of 1.80100009 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Selenium, total recoverable
210% over limit
Discharged 0.0248 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Selenium, total recoverable
26% over limit
Discharged 0.0101 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
119% over limit
Discharged 1.64000008 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cadmium, total recoverable
20% over limit
Discharged 0.00216 mg/L against a permitted limit of 0.0018 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Aluminum, total recoverable
237% over limit
Discharged 2.53000012 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 90 mg/L against a permitted limit of 80 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Selenium, total recoverable
69% over limit
Discharged 0.0135 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Selenium, total recoverable
5% over limit
Discharged 0.00837 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cadmium, total recoverable
186% over limit
Discharged 0.00514 mg/L against a permitted limit of 0.0018 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
6% over limit
Discharged 0.79700004 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Selenium, total recoverable
91% over limit
Discharged 0.0153 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Selenium, total recoverable
10% over limit
Discharged 0.0088 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
16% over limit
Discharged 93 mg/L against a permitted limit of 80 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Aluminum, total recoverable
748% over limit
Discharged 6.3600003 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Selenium, total recoverable
40% over limit
Discharged 0.0112 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
359% over limit
Discharged 367 mg/L against a permitted limit of 80 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Aluminum, total recoverable
191% over limit
Discharged 2.1800001 mg/L against a permitted limit of 0.75000004 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total recoverable
404% over limit
Discharged 9.08000043 mg/L against a permitted limit of 1.80100009 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
260% over limit
Discharged 288 mg/L against a permitted limit of 80 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Selenium, total recoverable
120% over limit
Discharged 0.0176 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Selenium, total recoverable
121% over limit
Discharged 0.0177 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Selenium, total recoverable
790% over limit
Discharged 0.0712 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Selenium, total recoverable
223% over limit
Discharged 0.0258 mg/L against a permitted limit of 0.008 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)