Is Maryville, IL tap water safe?
The short answer
Neither of the 2 utilities serving Maryville has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Illinois’s records.
Maryville, which serves the most people here, has 1 result above the health goal. The worst: Lead at 2.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Maryville is hard to very hard depending on the source, 125 to 470 mg/L (7.3 to 27.5 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 Maryville’s ZIP codes, from EPA’s estimates.
- Open report
Maryville
Illinois · serves 10,150 people · about 6,500 in Maryville
1 result above the health goal. The worst: Lead at 2.0 ppb, above the health goal. Hardness: hard to very hard depending on the source, 125 to 470 mg/L (7.3 to 27.5 grains per gallon).
No health-based violations since 2016
- Open report
Collinsville
Illinois · serves 30,616 people · about 350 in Maryville
2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOA at 18 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: very hard, typically 230 mg/L (13.4 grains per gallon).
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 Maryville’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Brita Tahoe Pitcher with Elite Filter (OB60, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 13, 2026
Certified for: Lead
Brita Everyday Pitcher with Elite Filter (OB46, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
Certified for: Lead
PUR PLUS 11-Cup Pitcher (PPT111W)
Pitcher
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
Certified for: Lead
Water testing near Maryville
The 3 labs Illinois certifies closest to Maryville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Teklab, Inc.
Collinsville, IL · about 2 miles
Certified for bacteria
Pace Analytical Services, LLC - Hazelwood
Hazelwood, MO · about 23 miles
Certified for bacteria
Precision Water Lab
Centralia, IL · about 47 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 IllinoisWhich ZIP codes are in Maryville: 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 Maryville
Other towns in Madison County with a page of their own.
What to do next
- Read Maryville’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water