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Get your water tested in Missouri.

The labs Missouri certifies to test drinking water, from the state’s own list. A lab test is the only way to know what is in your own tap or well.

The short answer

Missouri’s list has 64 labs certified to test drinking water: 44 in Missouri and 20 in other states. It also names 23 water utilities’ in-house labs, left out here because they test only their own systems’ water.

Certification is test by test, so check that a lab is certified for what you want tested, and call first: it will say which bottles to use and how soon the sample has to arrive.

From the state

Labs in Missouri

44 labs, by city.

Labs in Missouri, certified by Missouri
LabCityPhoneCertified for
St. Louis County Department of HealthBerkeley(314) 615-6834Bacteria, lead and copper, radioactivity
Missouri American Water Co.-Branson Metro LaboratoryBranson(417) 626-8509Bacteria
Taney County Health Department LaboratoryBranson(417) 334-4544Bacteria
Lake of the Ozarks Water ServicesCamdenton(573) 346-2092Bacteria
Total Water Laboratories LLCCamdenton(833) 688-6606Bacteria
City of St. Louis-Howard Bend LaboratoryChesterfield(314) 256-5723Bacteria, nitrate, minerals and other inorganics, organic chemicals
Missouri American Water Co.-St. Louis CountyChesterfield(314) 469-6050Bacteria
Associated Electric Cooperatives Inc. (AECI)Clifton Hill(660) 261-3283Bacteria
Columbia Water and Light Department Power PlantColumbia(573) 874-6242Bacteria
Engineering Surveys & ServicesColumbia(573) 449-2646Bacteria
Eurofins St. Louis LaboratoryEarth City(314) 298-8566Radioactivity
Fort Leonard Wood Department of Public Health-U.S. ArmyFort Leonard Wood(573) 329-1909Bacteria
Pace Analytical Services LLC-HazelwoodHazelwood(314) 432-0550Bacteria
Tri-County Water AuthorityIndependence(816) 796-4100Bacteria
Environmental Analysis SouthJackson(573) 204-8817Bacteria
Missouri American Water Co.-Jefferson CityJefferson City(573) 636-8616Bacteria
Missouri Department of Health & Senior Services-State Public Health LaboratoryJefferson City(573) 751-3334Bacteria
Missouri American Water Co.-JoplinJoplin(417) 626-8509Bacteria
Water Analysis Inc.Joplin(417) 623-2626Bacteria
Blue Valley Laboratories Inc.Kansas City(816) 471-4719Bacteria
Kansas City Water Services LaboratoryKansas City(816) 513-7008Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Laclede County Health Department LaboratoryLebanon(417) 532-3477Bacteria
Eastern Missouri Water LabLonedell(636) 775-2889Bacteria
Brothers Lab ServicesMaryland Heights(888) 893-6578Nitrate, lead and copper, metals, minerals and other inorganics
North Central Missouri Regional Water CommissionMilan(660) 256-3807Bacteria
Monett City Water PlantMonett(417) 235-7455Bacteria
Newton County Health Department LaboratoryNeosho(417) 451-6549Bacteria
The Truman LaboratoryNeosho(914) 588-8711Bacteria
Alpha Engineering and Surveying LLCOsage Beach(573) 348-9799Bacteria
LO EnvironmentalOsage Beach(573) 964-6956Bacteria
Christian County Health Department Water LabOzark(417) 581-7285Bacteria
Stone County Health CenterReeds Spring(417) 357-8200Bacteria
Premium Waters Inc. Central LaboratoryRiverside(816) 285-5745Bacteria
Water Smart Testing LLCRolla(573) 201-6256Bacteria
Milk Regulatory ConsultantsRussellville(573) 338-1785Bacteria
Perfect Water TestingSalem(573) 729-6451Bacteria
PACE Analytical Services LLC-SpringfieldSpringfield(417) 864-8924Bacteria
Springfield-Greene County Public Health CenterSpringfield(417) 864-1670Bacteria
EMSL Analytical Inc.-St. LouisSt. Louis(314) 577-0150Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
IIA Lab Services LLCSt. Louis(314) 531-8080Bacteria
R.M. Wester and Associates Inc.St. Peters(636) 928-9628Bacteria
City of Independence Water DepartmentSugar Creek(816) 325-7708Bacteria
Franklin County LabUnion(636) 583-9288Bacteria
Missouri American Water Co.-WarrensburgWarrensburg(417) 626-8509Bacteria

Labs in other states

20 labs Missouri certifies outside the state, by state and city. Ask whether a lab takes samples by mail, and how fast they have to arrive.

Labs in other states, certified by Missouri
LabCityPhoneCertified for
Pace Analytical Services LLC-FloridaOrmond Beach, FL(386) 672-5668Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS, radioactivity
Microbac Laboratories Inc.-CentervilleCenterville, IA(641) 792-8451Bacteria
Rathbun Regional Water AssociationCenterville, IA(641) 647-2416Bacteria
Microbac Laboratories Inc.-NewtonNewton, IA(641) 792-7989Nitrate, lead and copper, metals, minerals and other inorganics
Teklab Inc.Collinsville, IL(618) 344-1004Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Pace Analytical Services LLC-IllinoisPeoria, IL(309) 683-1736Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Culligan Analytical LaboratoryRosemont, IL(847) 430-2800Bacteria
EMSL Analytical Inc.-IndianapolisIndianapolis, IN(317) 803-2997Nitrate, lead and copper, metals, minerals and other inorganics, asbestos
Eurofins South BendSouth Bend, IN(574) 472-5515Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
Pace Analytical Services Inc.-KansasFrontenac, KS(913) 563-1444Bacteria
Microbac Laboratories Inc.-KansasLenexa, KS(913) 321-7856Bacteria
ALS Group USA-HollandHolland, MI(616) 399-6070Organic chemicals, disinfection byproducts, PFAS
National Testing Laboratories Ltd.Ypsilanti, MI(734) 483-8333Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
Pace Analytical Services LLC-MinneapolisMinneapolis, MN(612) 607-1700Organic chemicals
Eurofins CEICary, NC(919) 481-1413Asbestos
Pace Analytical Services LLC-GreensburgGreensburg, PA(724) 850-5630Radioactivity
Eurofins Lancaster Laboratories Environment Testing LLCLancaster, PA(717) 556-7327Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Pace Analytical National Center for Testing and InnovationMount Juliet, TN(615) 773-9657Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
ALS Laboratory GroupHouston, TX(281) 530-5656Lead and copper
Environmental Hazards Services LLCNorth Chesterfield, VA(804) 275-4788Lead and copper

What to ask a lab to test

Source: Missouri DNR, certified microbiological and chemical laboratories, read Oct. 10, 2026. Labs are listed as the state lists them; what each is certified for is as far as the list says. Certifications change, so a lab’s own word is the latest.

A lab named for a water utility is listed apart. Distances on town pages are straight lines between ZIP code centers from the Census 2020 gazetteer. How labs are listed here.

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