PWSID
IL1330050
State
Illinois
City
COLUMBIA
Population served
11,129
Primary source
SWP
Score history
No change since tracking began Jun 18, 2026.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Jun 2025). Levels in parts per trillion (ppt).
Lithium
10,000 ppt
limit —
PFBA
6.8 ppt
limit —
PFBS
3.4 ppt
limit —
Violations & enforcement
4
Violations on record
1
Unaddressed
0
Health-based
7
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Oct 2025. Official EPA record →
Recent enforcement actions
- State action · SOX Oct 2025
- State action · SIA Sep 2025
- State action · SIA Sep 2025
- State action · SOX Dec 2019
- State action · SIA Nov 2019
- State action · SOX Jul 2018
- State action · SIA Jul 2018
Area water-quality monitoring
Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.
Arsenic
1 station · latest Sep 2020
Manganese
1 station · latest Sep 2020
Copper
1 station · latest Sep 2020
Fluoride
1 station · latest Sep 2020
Lead
1 station · latest Jul 2020
Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.
This profile is built from EPA public records for system IL1330050 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.