MASON CONSOLIDATED SCHOOLS WWTP

NPDES ID: MI0047201

T — SNC: Compliance schedule reporting violation

The facility was more than 30 days late reporting progress on its compliance schedule.

This quarter: 9 single-event violations, 3 permit schedule violations.

Violations

October 31, 2025

Nitrogen, ammonia total [as N]

1% over limit

Discharged 0.266952 kg/d against a permitted limit of 0.26332 kg/d (7 DA AVG)

DMR, Limited - Numeric Violation

November 30, 2024

0% over limit

Discharged 6.44 SU against a permitted limit of 6.5 SU (DAILY MN)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (5 days ago)