BLYTHEVILLE, CITY OF-SOUTH
NPDES ID: AR0022578
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: 6 effluent violations.
Violations
June 30, 2026
Mercury, total recoverable
2848% over limit
Discharged 0.000796 mg/L against a permitted limit of 0.000027 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Mercury, total recoverable
6023% over limit
Discharged 0.000796 mg/L against a permitted limit of 0.000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total recoverable
186% over limit
Discharged 0.0001816 kg/d against a permitted limit of 0.00006356 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Mercury, total recoverable
43% over limit
Discharged 0.0000908 kg/d against a permitted limit of 0.00006356 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total recoverable
104% over limit
Discharged 0.000055 mg/L against a permitted limit of 0.000027 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Mercury, total recoverable
323% over limit
Discharged 0.000055 mg/L against a permitted limit of 0.000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Mercury, total recoverable
1% over limit
Discharged 0.0000131 mg/L against a permitted limit of 0.000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Mercury, total recoverable
12% over limit
Discharged 0.00007128 kg/d against a permitted limit of 0.00006356 kg/d (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Nitrogen, ammonia total [as N]
40% over limit
Discharged 13.48379989 kg/d against a permitted limit of 9.62479992 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Mercury, total recoverable
6% over limit
Discharged 0.00006719 kg/d against a permitted limit of 0.00006356 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total recoverable
12% over limit
Discharged 0.0000146 mg/L against a permitted limit of 0.000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Mercury, total recoverable
54% over limit
Discharged 0.00002 mg/L against a permitted limit of 0.000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total recoverable
36% over limit
Discharged 0.00008626 kg/d against a permitted limit of 0.00006356 kg/d (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Mercury, total recoverable
48% over limit
Discharged 0.00004 mg/L against a permitted limit of 0.000027 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Mercury, total recoverable
208% over limit
Discharged 0.00004 mg/L against a permitted limit of 0.000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total recoverable
86% over limit
Discharged 0.00011804 kg/d against a permitted limit of 0.00006356 kg/d (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (11 hours ago)