ASC SUNSTONE CIRCUITS LLC
NPDES ID: OR0031127
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: 4 effluent violations.
Violations
May 31, 2026
Cyanide, total [as CN]
3% over limit
Discharged 0.00515 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Cyanide, total [as CN]
12% over limit
Discharged 0.0056 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Cyanide, total [as CN]
56% over limit
Discharged 0.0078 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cyanide, total [as CN]
11% over limit
Discharged 0.00556 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Cyanide, total [as CN]
72% over limit
Discharged 0.0086 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cyanide, total [as CN]
31% over limit
Discharged 0.00653 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Cyanide, total [as CN]
28% over limit
Discharged 0.0064 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cyanide, total [as CN]
7% over limit
Discharged 0.00535 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)