DEER RUN APARTMENTS WWTF

NPDES ID: MO0140813

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: 3 effluent violations.

Violations

June 30, 2026

Solids, total suspended

3% over limit

Discharged 31 mg/L against a permitted limit of 30 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

15% over limit

Discharged 4.14 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

196% over limit

Discharged 4.14 mg/L against a permitted limit of 1.4 mg/L (MO AVG)

DMR, Limited - Numeric Violation

March 31, 2026

Nitrogen, ammonia total [as N]

56% over limit

Discharged 4.51 mg/L against a permitted limit of 2.9 mg/L (MO AVG)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (4 months ago)

Last confirmed

August 15, 2026 (11 hours ago)