SCHWARTZWALDER MINE
NPDES ID: CO0001244
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: 2 effluent violations.
Violations
June 30, 2026
Arsenic, total recoverable
32400% over limit
Discharged 0.0065 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Arsenic, total recoverable
252400% over limit
Discharged 0.0505 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Arsenic, total recoverable
44900% over limit
Discharged 0.009 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Arsenic, total recoverable
27400% over limit
Discharged 0.0055 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Arsenic, total recoverable
24900% over limit
Discharged 0.005 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Arsenic, total recoverable
24900% over limit
Discharged 0.005 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Arsenic, total recoverable
539900% over limit
Discharged 0.10800001 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Arsenic, total recoverable
39900% over limit
Discharged 0.008 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Arsenic, total recoverable
34900% over limit
Discharged 0.007 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Arsenic, total recoverable
44900% over limit
Discharged 0.009 mg/L against a permitted limit of 0.00002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (7 hours ago)