Is Vandalia, IL tap water safe?
The short answer
1 of the 2 utilities serving Vandalia has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Illinois’s records: Vandalia.
Vandalia, which serves the most people here, has 1 result above the legal limit and 2 results above the health goal. The worst: Haloacetic acids (HAA5) at 56.2 ppb, above the legal limit.
The water from Vandalia is hard, 130 mg/L (7.6 grains per gallon). How Illinois’s water compares.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Vandalia’s ZIP codes, from EPA’s estimates.
- Open report
Vandalia
Illinois · serves 7,616 people · about 330 in Vandalia
1 result above the legal limit and 2 results above the health goal. The worst: Haloacetic acids (HAA5) at 56.2 ppb, above the legal limit. Hardness: hard, 130 mg/L (7.6 grains per gallon).
1 health-based violation since 2016
- Open report
Vandalia Correctional Center
Illinois · serves 700 people · based in Vandalia
1 result above the limit’s level with no violation recorded and 1 result above the health goal. The worst: Haloacetic acids (HAA5) at 60.6 ppb, above the limit’s level, no violation.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Vandalia’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Water testing near Vandalia
The 3 labs Illinois certifies closest to Vandalia, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Precision Water Lab
Centralia, IL · about 30 miles
Certified for bacteria
Water Lab (EJ Water Coop)
Dieterich, IL · about 38 miles
Certified for bacteria
Teklab, Inc.
Collinsville, IL · about 49 miles
Certified for bacteria
Illinois Department of Public Health: Coliform bacteria and nitrate testing for private wells, with sample bottles from your local health department, or from the department's nearest regional office where there is none. You mail the sample to the lab, and results come back through the health department. Well Sampling for Coliform & Nitrate, Illinois Department of Public Health.
All 30 certified labs for IllinoisZIP codes in Vandalia
Which ZIP codes are in Vandalia: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Illinois Department of Public Health, certified water microbiology laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Vandalia
Towns nearby with a page of their own.
What to do next
- Read Vandalia’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Haloacetic acids (HAA5)What it does to health, where it comes from, and the certification claim that addresses it.About Haloacetic acids (HAA5)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water