AUSTIN POWDER COMPANY
NPDES ID: OH0006173
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
Violations
July 31, 2025
BOD, carbonaceous [5 day, 20 C]
20% over limit
Discharged 12 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
68% over limit
Discharged 0.48 kg/d against a permitted limit of 0.285 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
2971% over limit
Discharged 3870 MPN/100mL against a permitted limit of 126 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
1263% over limit
Discharged 3870 MPN/100mL against a permitted limit of 284 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
13% over limit
Discharged 1.7 mg/L against a permitted limit of 1.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
133% over limit
Discharged 35 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
BOD, carbonaceous [5 day, 20 C]
53% over limit
Discharged 23 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
47% over limit
Discharged 0.42 kg/d against a permitted limit of 0.285 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
BOD, carbonaceous [5 day, 20 C]
391% over limit
Discharged 1.4 kg/d against a permitted limit of 0.285 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
527% over limit
Discharged 94 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
253% over limit
Discharged 0.67 kg/d against a permitted limit of 0.19 kg/d (MO AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
19106% over limit
Discharged 24200 MPN/100mL against a permitted limit of 126 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
8421% over limit
Discharged 24200 MPN/100mL against a permitted limit of 284 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
340% over limit
Discharged 44 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, carbonaceous [5 day, 20 C]
7% over limit
Discharged 16 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
BOD, carbonaceous [5 day, 20 C]
367% over limit
Discharged 70 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
46% over limit
Discharged 2 kg/d against a permitted limit of 1.37 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
600% over limit
Discharged 70 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Solids, total suspended
6% over limit
Discharged 19 mg/L against a permitted limit of 18 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2024
BOD, carbonaceous [5 day, 20 C]
107% over limit
Discharged 31 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)