Best Well Water Testing in Yorkville, IL
Compare 26 local well water testing providers in Yorkville, IL. Verified listings with real contact info.
26 verified providers · Updated 2026-04-21
Quick Compare
Johnson Water Conditioning
Midwest Environmental Consulting Services, Inc.
Plano Softener Services DBA: Water Wagon
First Environmental Laboratories, Inc.
Eurofins Built Environment Testing-Chicago
Metiri Group - Geneva, IL
Great Water USA
Prairie State Water Systems Inc.
Canal Analytical & Environmental Services
Midwest Aerobiology Labs (Mold & Asbestos Inspectors)
Phigenics LLC
Stanley Brothers Well and Pump
Johnson Water Conditioning
Quality Environmental Testing Inc. Radon and Mold Testing
Teklab Inc
Northern Illinois Water Works / Aqua Systems
Aerobiology Laboratory - Downers Grove, IL
RainSoft Water Treatment of Chicago
Will County Well & Pump Co Inc
Enviro Test Perry Laboratories
Feil Water Treatment, Inc.
Leaf Home Water Solutions
Frequently Asked Questions
What should I test my well water for in Illinois?
The Illinois Department of Public Health (IDPH) and Illinois EPA (IEPA) recommend testing annually for coliform bacteria and nitrates at minimum. Given Illinois-specific contamination history, also test for: radium (naturally occurring in deep Cambrian-Ordovician sandstone aquifers across northern Illinois), nitrates and atrazine from agricultural runoff, lead, arsenic, volatile organic compounds (VOCs), iron, manganese, and pH. Check with your state environmental agency for contaminants of concern in your region.
How often should well water be tested in Illinois?
Test annually for bacteria and nitrates. Comprehensive testing every 2-3 years is recommended. Test immediately after any flooding event, if you notice changes in taste, odor, or color, or if you receive a notice about contamination in your area from local authorities.
Where can I get my well water tested in Illinois?
Use a state-certified laboratory. Your local board of health, state university cooperative extension office, or environmental watch program can provide sampling kits and recommend certified labs. Some well service companies also partner with certified labs.
How much does well water testing cost in Illinois?
Basic bacterial and nitrate testing costs $75-$150. A standard potable water panel (bacteria, nitrates, pH, iron, manganese, hardness) costs $150-$300. Extended testing for specific contaminants adds $150-$300 per sample. A comprehensive panel including multiple contaminant types costs $400-$700.