19 named for arsenic itself on the list.
Per the state list or a state web page. Call to confirm.
Located outside Kansas but on its list.
USGS estimate for Kansas.
How many labs test for arsenic in Kansas
19 labs on Kansas's official drinking-water lab list are certified to test for arsenic. All 19 are named for arsenic on the list. None of them is marked as taking samples from the public. Call a lab before you send a sample. 15 are located outside Kansas.
The list is published by the Kansas Department of Health and Environment (KDHE) - Environmental Laboratory Improvement Program (ELIPO). List version on file: Live database, searched 2026-11-15 ("believed to be accurate at the time of the search"). Fetched 2026-11-15 (UTC).
Use of this list. KDHE publishes this list with a notice under K.S.A. 45-230, a Kansas law that bars using names or addresses from public records to sell to the people or businesses listed. We show it only to help homeowners find a certified lab; we do not use it to market to the labs.
Kansas labs certified for arsenic
| Lab | Location | Arsenic certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| Accurate Environmental, LLC-Stillwater | Stillwater, OK | Named on the official list | Public samples: ask the lab | 4/30/2027 |
| Eurofins Lancaster Laboratories Environment Testing, LLC | Lancaster, PA | Named on the official list | Public samples: ask the lab | 10/31/2027 |
| Eurofins Pomona | Pomona, CA | Named on the official list | Public samples: ask the lab | 4/30/2027 |
| Eurofins South Bend | South Bend, IN | Named on the official list | Public samples: ask the lab | 10/31/2027 |
| KC Water Services Laboratory | Kansas City, MO | Named on the official list | Public samples: ask the lab | 10/31/2027 |
| Microbac Laboratories, Inc. - Chicagoland Division | Merrillville, IN | Named on the official list | Public samples: ask the lab | 1/31/2027 |
| National Testing Laboratories, Ltd. | Ypsilanti, MI | Named on the official list | Public samples: ask the lab | 7/31/2027 |
| Olathe Environmental Laboratory | Olathe, KS | Named on the official list | Public samples: ask the lab | 4/30/2027 |
| Pace Analytical National Center for Testing & Innovation | Mt. Juliet, TN | Named on the official list | Public samples: ask the lab | 10/31/2027 |
| Pace Analytical Services, Inc - Minneapolis MN | Minneapolis, MN | Named on the official list | Public samples: ask the lab | 10/31/2027 |
| Pace Analytical Services, LLC - Ormond Beach FL | Ormond Beach, FL | Named on the official list | Public samples: ask the lab | 4/30/2027 |
| Pace Analytical Services, LLC – Peoria | Peoria, IL | Named on the official list | Public samples: ask the lab | 10/31/2027 |
| State Hygienic Laboratory at The University of Iowa - Ankeny | Ankeny, IA | Named on the official list | Public samples: ask the lab | 1/31/2027 |
| Teklab, Inc | Collinsville, IL | Named on the official list | Public samples: ask the lab | 4/30/2027 |
| Utah Public Health Laboratory | Taylorsville, UT | Named on the official list | Public samples: ask the lab | 1/31/2027 |
| Water District No 1 of Johnson County-WaterOne | Kansas City, KS | Named on the official list | Public samples: ask the lab | 4/30/2027 |
| American Water Central Laboratory | Belleville, IL | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | 7/31/2027 |
| Lawrence Municipal Laboratory - Utilities | Lawrence, KS | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | 4/30/2027 |
| Wichita Municipal Water & Wastewater Laboratory | Wichita, KS | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | 10/31/2027 |
How the Kansas list marks public samples (whole list). Yes for the 2 listed labs that are on KDHE's Private Well Resource Map of "certified laboratories that conduct private water well testing" (map data last edited August 2023), so call before you send a sample. Not stated for the other labs. KDHE's database also marks each lab 'Commercial?' Yes/No: that is a lab-type flag, not a statement about homeowners' samples.
Before you send a sample, call the lab to confirm it is currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Status can change between list updates.
Why test for arsenic in Kansas
Arsenic is invisible, tasteless and mostly natural, and it comes in two forms that respond very differently to treatment. Read our arsenic explainer.
USGS estimates that the most private-well users with arsenic above 10 µg/L, EPA's limit for public water, live in Reno County, Sedgwick County and Seward County (about 635 people in Reno County, 2010 base year). USGS describes this kind of estimate as useful "for broad screening of the population at risk", so it says nothing certain about any one well. [1]
Show the numbers
| Item | Value | Note |
|---|---|---|
| Reno County | 635 people (2010 base year) | |
| Sedgwick County | 446 people (2010 base year) | |
| Seward County | 338 people (2010 base year) | |
| Ford County | 335 people (2010 base year) | |
| Grant County | 249 people (2010 base year) | |
| Haskell County | 230 people (2010 base year) |
USGS model estimate for broad screening, not a measurement of any well. Only a test tells you about your own well. Source: USGS, Estimated county level domestic well population with arsenic greater than 10 micrograms per liter (Ayotte, Medalie and Qi, 2017), accessed 2026-11-01.
About 149,282 people in Kansas used private wells in 2015, by the USGS estimate of people on domestic self-supplied water. [2] Federal limits are written for public water systems, not private wells, so testing is up to the owner.
For tests that depend on your home (farms nearby, old plumbing, a new baby), use the which-tests checklist. When results arrive, check your numbers against EPA's limits. State guidance, county data and every lab: Kansas.
Other tests in Kansas
- USGS, Estimated county level domestic well population with arsenic greater than 10 micrograms per liter (Ayotte, Medalie and Qi, 2017)
- USGS, Estimated use of water in the United States, county-level data for 2015 (Dieter et al., ver. 2.0, 2018)
- KDHE Approved Laboratory Search (AB Manager public database, Matrix: Drinking Water) (official list)
KDHE Approved Laboratory Search (AB Manager public database, Matrix: Drinking Water).
Official source