Skip to content

Water Quality Report

Washington, IL

15,211 residents · 3 water systems

0

Contaminants detected

0

PFAS compounds

Hardness (mg/L)

1

Above legal limits

2

Above health guidelines

Washington drinking water comes from groundwater wells. Based on the most recent monitoring data, 0 contaminants have been detected in the water supply. PFAS testing has been conducted with no detections.

Limited monitoring data available

The water systems serving Washington are small private systems (population served: 15,211) and are not part of Illinois EPA's main contaminant monitoring program. No detected contaminant data is available for these systems.

If you're researching the main municipal utility serving Washington, search for your specific address below — the search returns the actual water system serving your residence, which may be different from what's listed here.

Frequently asked questions

Is Washington, IL tap water safe to drink?
Washington tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 2 above independent health guidelines. 0 contaminants have been detected in the water supply, including . View the detailed report for each water system to see specific levels, how they compare to both legal limits and health guidelines, and what actions to take.
What contaminants are in Washington water?
Monitoring has detected 0 contaminants in Washington's water supply: . 1 of these are above EPA legal limits. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Washington water have PFAS?
Washington's water has been tested for PFAS compounds with no detections. Testing was conducted as part of the EPA's Unregulated Contaminant Monitoring Rule (UCMR5) program.
Where does Washington get its drinking water?
Washington's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Washington is served by 3 water systems, the largest being WASHINGTON (serving 14,793 people).

Check your water quality

Enter your address for a detailed report specific to your water system.

On a private well? Search your address for nearby groundwater monitoring data.

Free water assessment in Washington.

Schedule an onsite consultation.