ROCK ISLAND MAIN STP, CITY OF

NPDES ID: IL0030783

S — SNC: Compliance schedule violation

The facility missed a deadline in its compliance schedule by more than 90 days.

This quarter: 3 single-event violations.

Violations

June 30, 2025

Coliform, fecal general

3% over limit

Discharged 410 MPN/100mL against a permitted limit of 400 MPN/100mL (DAILY MX)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (3 months ago)

Last confirmed

August 1, 2026 (4 days ago)