FREUDENBERG-NOK SEALING TECHNOLOGIES
NPDES ID: NHG910104
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: 3 effluent violations.
Violations
May 31, 2026
Chloride, total recoverable
104% over limit
Discharged 470 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Chloride, total recoverable
30% over limit
Discharged 300 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Chloride, total recoverable
43% over limit
Discharged 330 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Chloride, total recoverable
52% over limit
Discharged 350 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Dibenzo[a,h]anthracene, dry weight
260% over limit
Discharged 0.00018 mg/L against a permitted limit of 0.00005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Indeno[1,2,3-cd]pyrene
70% over limit
Discharged 0.000085 mg/L against a permitted limit of 0.00005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Benzo[k]fluoranthene
48% over limit
Discharged 0.000074 mg/L against a permitted limit of 0.00005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chloride, total recoverable
191% over limit
Discharged 670 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Chloride, total recoverable
87% over limit
Discharged 430 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Chloride, total recoverable
57% over limit
Discharged 360 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Chloride, total recoverable
70% over limit
Discharged 390 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Chloride, total recoverable
96% over limit
Discharged 450 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Chloride, total recoverable
91% over limit
Discharged 440 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Chloride, total recoverable
91% over limit
Discharged 440 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Chloride, total recoverable
109% over limit
Discharged 480 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Chloride, total recoverable
104% over limit
Discharged 470 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Chloride, total recoverable
35% over limit
Discharged 310 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Chloride, total recoverable
17% over limit
Discharged 270 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Chloride, total recoverable
78% over limit
Discharged 410 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Chloride, total recoverable
17% over limit
Discharged 270 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Chloride, total recoverable
4% over limit
Discharged 240 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Chloride, total recoverable
9% over limit
Discharged 250 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Chloride, total recoverable
13% over limit
Discharged 260 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Chloride, total recoverable
48% over limit
Discharged 340 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Chloride, total recoverable
17% over limit
Discharged 270 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Chloride, total recoverable
35% over limit
Discharged 310 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)