Is Zionsville, IN tap water safe?
The short answer
3 of the 5 utilities serving Zionsville have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Citizens Water - Whitestown, Lebanon Utilities and Zionsville MHP Trust.
Citizens Water - Indianapolis, which serves the most people here, has 2 results above the health goal. The worst: Lead at 3.4 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Citizens Water - Indianapolis is very hard on average, 317 mg/L (18.5 grains per gallon), ranging from 148 to 460 mg/L. How it 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 Zionsville’s ZIP codes, from EPA’s estimates.
- Open report
Citizens Water - Indianapolis
Indiana · serves 880,345 people · about 23,600 in Zionsville
2 results above the health goal. The worst: Lead at 3.4 ppb, above the health goal. Hardness: very hard on average, 317 mg/L (18.5 grains per gallon), ranging from 148 to 460 mg/L.
No health-based violations since 2016
- Open report
Citizens Water - Whitestown
Indiana · serves 15,695 people · about 6,500 in Zionsville
1 result above the health goal. The worst: Lead at 0.33 ppb, above the health goal.
1 health-based violation since 2016
- Open report
Lebanon Utilities
Indiana · serves 16,840 people · about 1,400 in Zionsville
2 results above the health goal. The worst: Arsenic at 1.4 ppb, above the health goal.
1 health-based violation since 2016
- Open report
Pine Ridge
Indiana · serves 135 people · about 110 in Zionsville
2 results above the health goal. The worst: Lead at 4.6 ppb, above the health goal.
No health-based violations since 2016
- Open report
Zionsville MHP Trust
Indiana · serves 57 people · under 100 in Zionsville
1 result above the health goal. The worst: Arsenic at 5.6 ppb, above the health goal.
7 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 Citizens Water - Indianapolis’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 Zionsville
The 3 labs Indiana certifies closest to Zionsville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Environmental Laboratories, Inc. - Carmel
Carmel, IN · about 10 miles
Certified for bacteria
(888) 932-6699Website: Environmental Laboratories, Inc. - Carmel
Micro Air, Inc.
Indianapolis, IN · about 10 miles
Certified for bacteria
Pace Analytical Services, LLC
Indianapolis, IN · about 10 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Indiana Department of Health laboratory: Test kits for well water: nitrate, fluoride, and arsenic, lead and copper, ordered from the lab and returned by mail. They are open to the public. Nitrate is $10 a sample plus $6.50 shipping per order, fluoride $10 plus shipping, and the arsenic, lead and copper kit $20 plus $6.50 shipping. Water Testing, Indiana Department of Health.
All 81 certified labs for IndianaWhich ZIP codes are in Zionsville: 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: Indiana Department of Health, certified drinking water laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Zionsville
Towns nearby with a page of their own.
What to do next
- Read Citizens Water - Indianapolis’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