Is Des Plaines, IL tap water safe?
The short answer
None of the 3 utilities serving Des Plaines has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Illinois’s records.
Des Plaines, which serves the most people here, has 1 result above the health goal. The worst: Lead at 5.7 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
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 Des Plaines’s ZIP codes, from EPA’s estimates.
- Open report
Des Plaines
Illinois · serves 60,675 people · about 31,800 in Des Plaines
1 result above the health goal. The worst: Lead at 5.7 ppb, above the health goal.
No health-based violations since 2016
- Open report
Aqua Illinois - North Maine Utilities
Illinois · serves 30,043 people · about 14,600 in Des Plaines
1 result above the health goal. The worst: Lead at 1.0 ppb, above the health goal. Hardness: hard, typically 130 mg/L (7.6 grains per gallon).
No health-based violations since 2016
- Open report
Rosemont
Illinois · serves 3,952 people · about 800 in Des Plaines
Nothing in its records is above a health goal.
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 Des Plaines’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 Des Plaines
The 3 labs Illinois certifies closest to Des Plaines, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Culligan Analytical Laboratory
Rosemont, IL · about 2 miles
Certified for bacteria
DuPage County Health Department
Wheaton, IL · about 15 miles
Certified for bacteria
ETP Labs, Inc.
Willowbrook, IL · about 19 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 Des Plaines: 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 Des Plaines
Other towns in Cook County with a page of their own.
What to do next
- Read Des Plaines’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