KEO, CITY OF

NPDES ID: AR0037613

E — SNC: Effluent violation (monthly average limit)

The facility discharged more of a pollutant than its permit allows, based on a monthly average.

Violations

March 31, 2026

Solids, total suspended

31% over limit

Discharged 29.5 mg/L against a permitted limit of 22.5 mg/L (7 DA AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

97% over limit

Discharged 29.5 mg/L against a permitted limit of 15 mg/L (MO AVG)

DMR, Limited - Numeric Violation

December 31, 2025

Solids, total suspended

7% over limit

Discharged 24 mg/L against a permitted limit of 22.5 mg/L (7 DA AVG)

DMR, Limited - Numeric Violation

Solids, total suspended

60% over limit

Discharged 24 mg/L against a permitted limit of 15 mg/L (MO AVG)

DMR, Limited - Numeric Violation

June 30, 2025

Oxygen, dissolved [DO]

19% over limit

Discharged 4.05 mg/L against a permitted limit of 5 mg/L (INST MIN)

DMR, Limited - Numeric Violation

September 30, 2024

Solids, total suspended

13% over limit

Discharged 17 mg/L against a permitted limit of 15 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Oxygen, dissolved [DO]

9% over limit

Discharged 4.53 mg/L against a permitted limit of 5 mg/L (INST MIN)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (3 months ago)

Last confirmed

July 13, 2026 (22 days ago)