PILOT GROVE EAST WWTF

NPDES ID: MO0093076

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: 4 effluent violations, 1 compliance schedule violation.

Violations

June 30, 2026

Nitrogen, ammonia total [as N]

1379% over limit

Discharged 20.7 mg/L against a permitted limit of 1.4 mg/L (MO AVG)

DMR, Limited - Numeric Violation

E. coli

444% over limit

Discharged 1120 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)

DMR, Limited - Numeric Violation

Nitrogen, ammonia total [as N]

491% over limit

Discharged 20.7 mg/L against a permitted limit of 3.5 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

E. coli

9% over limit

Discharged 1120 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)

DMR, Limited - Numeric Violation

March 31, 2026

Nitrogen, ammonia total [as N]

3190% over limit

Discharged 95.4 mg/L against a permitted limit of 2.9 mg/L (MO AVG)

DMR, Limited - Numeric Violation

BOD, 5-day, 20 deg. C

10% over limit

Discharged 33 mg/L against a permitted limit of 30 mg/L (MO AVG)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (5 days ago)