Is Marion, KS tap water safe?
The short answer
None of the 3 utilities serving Marion has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Kansas’s records.
City of Marion, which serves the most people here, has 1 result above the health goal. The worst: Arsenic at 1.4 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from City of Marion is very hard, 275 mg/L (16.1 grains per gallon). How Kansas’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 Marion’s ZIP codes, from EPA’s estimates.
- Open report
City of Marion
Kansas · serves 1,902 people · under 100 in Marion
1 result above the health goal. The worst: Arsenic at 1.4 ppb, above the health goal. Hardness: very hard, 275 mg/L (16.1 grains per gallon).
No health-based violations since 2016
- Open report
Marion Co Improvement Dist 2
Kansas · serves 234 people · under 100 in Marion
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Marion Co RWD 2
Kansas · serves 175 people · under 100 in Marion
1 result above the health goal. The worst: Lead at 1.9 ppb, above the 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 City of Marion’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic
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: 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: Arsenic
Water testing near Marion
The 3 labs Kansas certifies closest to Marion, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Pace Analytical Services, Inc. - Salina
Salina, KS · about 47 miles
Certified for bacteria, nitrate
Irwin Army Community Hospital-Water Laboratory-PH-EH
Fort Riley, KS · about 51 miles
Certified for bacteria
Meridian Analytical Laboratory - Wichita
Wichita, KS · about 53 miles
Certified for bacteria, nitrate, minerals and other inorganics, organic chemicals, disinfection byproducts
ZIP codes in Marion
Which 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: Kansas Department of Health and Environment, drinking water labs, as listed in TNI LAMS; 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 City of Marion’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water