Looking for well water testing in Old Mill Creek, IL? Describe your project once and up to three water testing pros who work in Old Mill Creek and Lake County get back to you with a quote. It's free and there is no obligation.
Old Mill Creek is home to about 160 people (2024 Census Bureau estimate), a shrinking community (−1.8% since 2020). With 15 people per sq mi, it is a rural area. Homes on private wells here are responsible for their own water quality.
Old Mill Creek at a glance
- Population (Census Bureau estimate, 2024)
- 160 (−1.8% since 2020)
- Rank in Illinois
- 1,155th of 1,294 cities and towns
- Land area
- 11 sq mi
- Population density
- 15 people per sq mi (rural)
- Type
- Village (Old Mill Creek village)
- Main county
- Lake County
What to check before hiring in Old Mill Creek
- Certified lab: in Illinois, use a lab certified by the state for drinking water.
- Lender panel: ask your lender which tests and who must take the sample.
- Local concerns: the health department knows local issues such as arsenic, nitrates or PFAS.
- Price drivers: the panel, the sampling visit and rush results.
Useful official resources
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EPA: private wells
Official information and guidance.
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EPA: protect your home's water
Official information and guidance.
Services available in Old Mill Creek
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Well water test for a sale or loan
Sampling and lab analysis for the panel a lender or buyer requires.
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Comprehensive water testing
Broad panel for bacteria, nitrates, metals, PFAS and other contaminants.
Frequently asked questions in Old Mill Creek
How much does well water testing cost in Old Mill Creek, IL?
It depends on the panel and whether sampling is included. Describe your needs: pros who serve Old Mill Creek reply with a quote.
How long do results take?
Bacteria results often in a few days; full panels longer.
Is my water safe to drink meanwhile?
If in doubt, use bottled water until you have the results.
Which water testing pros will contact me?
Up to three independent water testing pros who serve Old Mill Creek and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.