VALMET INC
NPDES ID: MSP090655
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
June 30, 2026
Nitrogen, ammonia total [as N]
40% over limit
Discharged 12.6 mg/L against a permitted limit of 9 mg/L (QRTR MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
40% over limit
Discharged 8.39 mg/L against a permitted limit of 6 mg/L (QRTR AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
267% over limit
Discharged 33 mg/L against a permitted limit of 9 mg/L (QRTR MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
99% over limit
Discharged 11.92 mg/L against a permitted limit of 6 mg/L (QRTR AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
74% over limit
Discharged 15.7 mg/L against a permitted limit of 9 mg/L (QRTR MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
19% over limit
Discharged 7.16 mg/L against a permitted limit of 6 mg/L (QRTR AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, ammonia total [as N]
188% over limit
Discharged 17.3 mg/L against a permitted limit of 6 mg/L (QRTR AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
401% over limit
Discharged 45.1 mg/L against a permitted limit of 9 mg/L (QRTR MAX)
DMR, Limited - Numeric Violation
November 30, 2024
pH
0% over limit
Discharged 9.6 SU against a permitted limit of 9.5 SU (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (9 hours ago)