FORT SMITH, CITY OF-MASSARD WATER RECLAMATION FACILITY
NPDES ID: AR0021750
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 1 effluent violation.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
8% over limit
Discharged 5.4 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
19% over limit
Discharged 5.93 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
16% over limit
Discharged 8.68 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
40% over limit
Discharged 10.5 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
41% over limit
Discharged 10.6 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
29% over limit
Discharged 58 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
48% over limit
Discharged 280.11799765 kg/d against a permitted limit of 189.31799841 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
95% over limit
Discharged 9.77 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
25% over limit
Discharged 6.25 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
5% over limit
Discharged 7.9 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
37% over limit
Discharged 260.14199781 kg/d against a permitted limit of 189.31799841 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
47% over limit
Discharged 66.1 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
46% over limit
Discharged 1657.55398607 kg/d against a permitted limit of 1135.90799046 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
64% over limit
Discharged 12.3 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
8% over limit
Discharged 32.3 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
47% over limit
Discharged 7.34 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
80% over limit
Discharged 340.95399714 kg/d against a permitted limit of 189.31799841 kg/d (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
43% over limit
Discharged 10.73 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
104% over limit
Discharged 10.2 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
8% over limit
Discharged 203.84599829 kg/d against a permitted limit of 189.31799841 kg/d (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
99% over limit
Discharged 9.95 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
15% over limit
Discharged 218.37399817 kg/d against a permitted limit of 189.31799841 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
64% over limit
Discharged 12.33 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
121% over limit
Discharged 417.67999649 kg/d against a permitted limit of 189.31799841 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
229% over limit
Discharged 24.7 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
248% over limit
Discharged 17.4 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Nitrogen, ammonia total [as N]
233% over limit
Discharged 24.98 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
245% over limit
Discharged 17.25 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
107% over limit
Discharged 391.80199671 kg/d against a permitted limit of 189.31799841 kg/d (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)