Is Iola, KS tap water safe?
The short answer
1 of the 5 utilities serving Iola has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Kansas’s records: Allen Co RWD 4.
City of Iola, which serves the most people here, has 2 results above the health goal. The worst: Lead at 7.2 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from City of Iola is moderately hard, typically 83 mg/L (4.8 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 Iola’s ZIP codes, from EPA’s estimates.
- Open report
City of Iola
Kansas · serves 5,343 people · about 220 in Iola
2 results above the health goal. The worst: Lead at 7.2 ppb, above the health goal. Hardness: moderately hard, typically 83 mg/L (4.8 grains per gallon).
No health-based violations since 2016
- Open report
Public Wholesale WSD 5
Kansas · serves 1 person · nearly all in Iola
Nothing in its records is above a health goal. Hardness: very hard, 210 mg/L (12.3 grains per gallon).
No health-based violations since 2016
- Open report
Allen Co RWD 6
Kansas · serves 45 people · under 100 in Iola
1 result above the health goal. The worst: Lead at 0.5 ppb, above the health goal.
No health-based violations since 2016
- Open report
Allen Co RWD 15
Kansas · serves 135 people · under 100 in Iola
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Allen Co RWD 4
Kansas · serves 52 people · under 100 in Iola
1 result above the health goal. The worst: Lead at 2.0 ppb, above the health goal.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in City of Iola’s water, which serves the most people here. Another utility’s report names what handles its own results.
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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 Iola
The 3 labs Kansas certifies closest to Iola, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Pace Analytical Services, Inc - Frontenac
Frontenac, KS · about 51 miles
Certified for bacteria
Johnson County Water Quality Laboratory
Olathe, KS · about 72 miles
Certified for bacteria, nitrate, lead and copper
Olathe Environmental Laboratory
Olathe, KS · about 72 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
ZIP codes in Iola
Which ZIP codes are in Iola: 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 Iola
Towns nearby with a page of their own.
What to do next
- Read City of Iola’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