Is Marion, IN tap water safe?
The short answer
Marion City Water Works serves Marion. In EPA’s and CDC’s records it has 2 results above the health goal and 1 result above EPA’s health benchmark, and no health-based violation since 2016.
The worst: Lithium at 26.8 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Marion City Water Works’s water.
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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 Marion
The 3 labs Indiana certifies closest to Marion, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
HML, Inc
Muncie, IN · about 24 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Criterion Water Labs, LLC
Kokomo, IN · about 25 miles
Certified for bacteria, nitrate
CF Environmental
Fort Wayne, IN · about 38 miles
Certified for bacteria, nitrate, lead and copper, metals
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 Marion: 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 Marion
Towns nearby with a page of their own.
What to do next
- Read Marion City Water Works’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water