Johnson County Water Quality Laboratory

At a glance

What it is certified to test

3 of the 9 common well tests on the KS list (see which)

Price

from $34.50 (Fluoride (Drinking Water)), as printed on the lab’s website, read 15 Nov 2026

Turnaround

not stated on the state list or the lab’s website: ask when you order

Homeowner samples

yes (lab’s own website, read 15 Nov 2026)

Lab facts

Listed by

Kansas (Kansas Department of Health and Environment (KDHE) - Environmental Laboratory Improvement Program (ELIPO))

Address

11811 S Sunset Dr, Suite 1700, Olathe, KS 66061-7058 · Open in Google Maps

Phone

(913) 715-6958

Website

jocogov.org/department/wastewater/residential-customers/water-quality-lab

Not on the state list: found and checked by us, 15 Nov 2026

Public / homeowner samples

Homeowner samples: yes (lab’s website)

Not stated in the list.

Certification record

Certificate ID

KS Lab ID E-60633

Issued by

Kansas Department of Health and Environment (KDHE) - Environmental Laboratory Improvement Program (ELIPO) (certification program)

Expiry on the list

4/30/2027 · expires in 166 days

List version

KDHE Approved Laboratory Search (AB Manager public database, Matrix: Drinking Water), version Live database, searched 2026-11-15 ("believed to be accurate at the time of the search")

We fetched it

15 Nov 2026 (file SHA-256 02da77ff37dd…) · open the state file

Tests on the state list

• Named on the official list The state list names this analyte (or a column for it) for this lab.
• Group-level certification Certified for a parent group (e.g. 'Inorganics') that includes this analyte. Confirm the specific test with the lab.
• Partial group certification The list marks the group as 'Partial'. Confirm this analyte with the lab.
• Subcontracted The lab sends this analyte to another accredited lab (MDH 'X*').

KDHE lists 6 drinking-water analytes this lab is accredited for. KDHE database: lab type NELAP Primary; 'Commercial?' No; 'Is Primary?' Yes. Not on KDHE's private-well map of certified well water testing laboratories (data last edited 2023-08-10). 'Commercial?' is KDHE's lab-type flag, not a statement about homeowners' samples: call before you send a sample.

Homeowner service and turnaround (lab’s own website)

• Takes homeowner samples: yes. The lab’s site says: “Water Quality Laboratory serves the residents of Johnson County, providing analytical services encompassing drinking water, stream water, municipal treatment plants, and industries.” source

From the lab’s own website, read 15 Nov 2026 and re-read by a second checker; next check due by 13 Feb 2027. Certification fields come from the state list only.

Prices the lab prints, compared

Nearest labs that take homeowner samples

No other lab that takes homeowner samples is within 25 miles of this lab; the nearest is 143 miles away. Distances are straight-line from the address on the state list (approx. = ZIP-code centre). “Takes homeowner samples” comes from a state list column or the lab’s own website, as named.

Price and turnaround as printed on each lab’s own website and checked by a second reader; – = not published or not read yet.

Around this lab: Johnson County, KS

• Private wells: about 320 people, 0% of Johnson County’s 580,159 residents (USGS, 2015); rank 80 of 105 counties in Kansas by people on wells.
• At house sale: Johnson County (JCDHE) has a septic system rule (Johnson County Environmental Sanitary Code). What it requires

• EPA radon zone (indoor air): Zone 1: highest potential (average indoor radon may be greater than 4 pCi/L). EPA says the zone map should not decide whether one home needs testing.
• Arsenic above 10 µg/L (USGS model): about 1 private-well users (95% range 1 to 1; 2010 base), rank 82 of 105 in the state. A screening estimate, not a measurement of any well.
• Older homes (Census ACS 2020–2024): 36% of 259,655 housing units were built before 1980, below the state share of 56%. Homes built before 1986 are more likely to have lead solder or fittings, so test tap water for lead there.
• PFAS in public water nearby (public supply, not your well): 8 public systems serving this county reported EPA UCMR 5 results; 0 had a PFOA or PFOS sample at or above 4.0 ng/L.

County figures describe where the lab is, not the lab. Sources: USGS 2015 water use and 2017 arsenic estimates, EPA radon zones, Census ACS table B25034 (2020–2024), EPA UCMR 5 (2023–2026); details and links on the sources page.

Before you send a sample

Call the lab to confirm it's currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Bacteria samples have short holding times. Status can change between list updates. To check a status, contact the Kansas certification program.

Is this your lab?

Labs can ask for corrections through the agency that publishes their state list. Homeowner service, prices and turnaround above come only from the lab’s own website. To ask us to correct or remove this listing, write to us (how we handle listings).