PARKDALE WASTEWATER TREATMENT PLANT
NPDES ID: AR0050997
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: 9 effluent violations.
Violations
June 30, 2026
Solids, total suspended
133% over limit
Discharged 210 mg/L against a permitted limit of 90 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
5% over limit
Discharged 210 MPN/100mL against a permitted limit of 200 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
56% over limit
Discharged 210 mg/L against a permitted limit of 135 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
50% over limit
Discharged 45 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
BOD, 5-day, 20 deg. C
256% over limit
Discharged 160 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
211% over limit
Discharged 280 mg/L against a permitted limit of 90 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
433% over limit
Discharged 160 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
38% over limit
Discharged 7.49099994 kg/d against a permitted limit of 5.44799995 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
107% over limit
Discharged 280 mg/L against a permitted limit of 135 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Oxygen, dissolved [DO]
14% over limit
Discharged 1.72 mg/L against a permitted limit of 2 mg/L (MO AV MN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (8 hours ago)