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Get your water tested in Oregon.

The labs Oregon 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

Oregon’s list has 91 labs certified to test drinking water: 34 in Oregon and 57 in other states. 4 of the labs here are named for a water utility and may test only its own water, so they come last.

Oregon’s labs here are those its Environmental Laboratory Accreditation Program accredits for drinking water, as listed in TNI LAMS, the national registry it reports to.

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 Oregon

30 labs, by city.

Labs in Oregon, certified by Oregon
LabCityPhoneCertified for
Britebox Labs, IncBend(541) 299-2008Bacteria, nitrate
City of Bend Water Quality LaboratoryBend(541) 693-2112Bacteria, lead and copper, metals
Eurofins BendBend(360) 757-1400Bacteria, nitrate
Umpqua Research Company (Bend)Bend(541) 863-7335Bacteria, nitrate
Clackamas River Water Drinking Water Quality LaboratoryClackamas(503) 722-9241Bacteria
McCowan Clinical Laboratory Inc.Coos Bay(541) 267-7853Bacteria
Eurofins CorvallisCorvallis(360) 757-1400Bacteria, nitrate
U.S. Region 9 Lab - Corvallis, ORCorvallis(541) 754-4571Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, PFAS
Analytical Laboratory GroupEugene(541) 485-8404Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Pacific Water AnalyticsEugene(541) 321-6698Bacteria
Spec Lab LLCEugene(541) 228-9313PFAS
Grants Pass Water Laboratory, Inc./The Water LabGrants Pass(541) 476-0733Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Spring Street Analytical LaboratoryKlamath Falls(541) 882-6286Bacteria
Neilson Research CorporationMedford(541) 770-5678Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Umpqua Research CompanyMyrtle Creek(541) 863-5201Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals
Clackamas Water Environment Services-Water Quality LaboratoryOregon City(503) 557-2868Bacteria
Pendleton Wastewater Treatment PlantPendleton(541) 276-3372Bacteria
Umpqua Research Company - Table RockPendleton(541) 863-7335Bacteria, nitrate
Columbia Laboratories Inc.Portland(503) 254-1794Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
OMIC USA Inc.Portland(503) 223-1497Not listed
Rose City LaboratoriesPortland(503) 307-0096Bacteria, nitrate, lead and copper, metals, PFAS
Box R Water Analysis Laboratory, L.L.C.Prineville(412) 603-1990Bacteria, nitrate
Waterlab Corp.Salem(503) 363-0473Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Willow Lake Laboratory, City of SalemSalem(503) 588-6380Bacteria, lead and copper, minerals and other inorganics
EWEB Water Quality LaboratorySpringfield(541) 685-7841Bacteria
City of The Dalles Water Quality LabThe Dalles(541) 298-2248Bacteria
Alexin Analytical Laboratories, Inc.Tigard(503) 639-9311Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Apex Laboratories, LLCTigard(503) 718-2323Lead and copper, metals
Camp Rilea LaboratoryWarrenton(971) 355-4657Bacteria, nitrate
Eurofins WilsonvilleWilsonville(360) 757-1400Bacteria, nitrate

Labs in other states

57 labs Oregon 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 Oregon
LabCityPhoneCertified for
Eurofins PhoenixPhoenix, AZ(602) 437-3340Nitrate, minerals and other inorganics
Onterris Laboratories, LLC - AnaheimAnaheim, CA(714) 771-6900Organic chemicals, disinfection byproducts
Microbac Laboratories, Inc. - ArcataArcata, CA(707) 822-4649Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Pace Analytical Services, LLC -- BakersfieldBakersfield, CA(661) 327-4911Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Weck Laboratories, Inc.City of Industry, CA(626) 531-0343Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Ceres Analytical Laboratory, Inc.El Dorado Hills, CA(916) 932-5011Not listed
Onterris Laboratories, LLCEl Dorado Hills, CA(916) 673-1520 ext. 115PFAS
BSK AssociatesFresno, CA(559) 497-2888Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
EPA Region 9 Field Services Support CenterHayward, CA(541) 754-4574Bacteria
Caltest Analytical LaboratoryNapa, CA(707) 258-4000 ext. 20Organic chemicals, disinfection byproducts
Onterris Laboratories, LLC - OrangeOrange, CA(714) 771-6900Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Eurofins Eaton Analytical, LLC - PomonaPomona, CA(626) 386-1100Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Babcock Laboratories, Inc.Riverside, CA(951) 653-3351Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Continental Water LaboratorySacramento, CA(916) 379-2323PFAS
BSK Associates-Redlands Analytical LaboratorySan Bernardino, CA(559) 497-2888 ext. 106Bacteria
Eurofins SacramentoWest Sacramento, CA(916) 373-5600PFAS
Eurofins DenverArvada, CO(303) 736-0100PFAS
Obsidian AnalyticalGolden, CO(630) 815-7797Not listed
ACZ Laboratories, Inc.Steamboat Springs, CO(970) 879-6590Nitrate, lead and copper, metals, minerals and other inorganics, radioactivity
SGS North America, Inc. - OrlandoOrlando, FL(407) 425-6700PFAS
Eurofins Cedar FallsCedar Falls, IA(319) 595-2009Nitrate, minerals and other inorganics
Analytical Laboratories, Inc.Boise, ID(208) 342-5515Bacteria, nitrate, minerals and other inorganics
Anatek Labs, Inc.Moscow, ID(208) 883-2839Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Water Dynamics LLC Dba Magic Valley LabsTwin Falls, ID(208) 733-4250Bacteria, nitrate, minerals and other inorganics
Microbac Laboratories, Inc-NorthbrookNorthbrook, IL(847) 564-0700Radioactivity
Pace Analytical Services, LLC.- PeoriaPeoria, IL(309) 683-1744PFAS
Eurofins South BendSouth Bend, IN(574) 233-4777Bacteria, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS, radioactivity
Pace Analytical Services LLC Mansfield MA (320 Forbes)Mansfield, MA(508) 822-9300Lead and copper, metals, PFAS
Pace Analyticalservices LLC Westborough MAWestborough, MA(508) 898-9220Nitrate, minerals and other inorganics
Pace Analytical Services, LLC - Minneapolis MNMinneapolis, MN(612) 607-6352Nitrate, lead and copper, metals, minerals and other inorganics
Eurofins St. LouisEarth City, MO(314) 298-8566Radioactivity
EMSL Analytical, Inc.St. Louis, MO(314) 788-3264Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Energy Laboratories, Inc. - MTBillings, MT(406) 252-6325PFAS
Eurofins Built Environment Testing East LLC - Cary NCCary, NC(919) 481-1413Asbestos
SGS North America Inc - Wilmington NCWilmington, NC(910) 667-0134PFAS
SGS North America Inc. - DaytonDayton, NJ(609) 594-5409PFAS
Eurofins AlbuquerqueAlbuquerque, NMNot listedNitrate, minerals and other inorganics, organic chemicals, disinfection byproducts
ASSET LaboratoriesLas Vegas, NV(702) 307-2659 ext. 406Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
SGS Silver State Analytical Laboratories - RenoReno, NVNot listedBacteria, nitrate, lead and copper, metals, minerals and other inorganics
Eurofins ClevelandBarberton, OH(574) 876-6067Bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Alliance Technical Group, LLC-AkronCuyahoga Falls, OH(330) 253-8211Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS, radioactivity
Microbac Laboratories, Inc - Marietta DivisionMarietta, OH(740) 373-4071PFAS
Pace Analytical Services LLC - Greensburg PAGreensburg, PA(724) 850-5600Radioactivity
Eurofins Lancaster Laboratories Environment Testing, LLCLancaster, PA(717) 656-2300Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Pace Analytical National Center for Testing & InnovationMount Juliet, TN(615) 773-9657Nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, radioactivity
ALS Laboratory Group, Environmental Services Division (Houston, Texas)Houston, TX(281) 530-5656Not listed
Analytical Services, Inc.Williston, VT(802) 878-5138Not listed
Eurofins WashingtonBurlington, WA(360) 757-1400Nitrate, minerals and other inorganics
ALS Environmental, KelsoKelso, WA(360) 501-3362Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Matrix Sciences dba KTLPasco, WANot listedNitrate, lead and copper, metals, minerals and other inorganics
RJ Lee Group, Inc./Columbia Basin Analytical LaboratoriesPasco, WA(509) 792-1942Nitrate, lead and copper, metals, minerals and other inorganics
Alliance Technical Group, LLC - SeattleSeattle, WA(206) 352-3790Nitrate, lead and copper, metals
Friedman & Bruya, IncSeattle, WA(206) 285-8282 ext. 227Lead and copper, metals
Anatek Labs, Inc. - SpokaneSpokane, WA(509) 838-3999Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
BSK Associates ?VancouverVancouver, WA(360) 869-6344Bacteria, nitrate, minerals and other inorganics
Anatek Labs, Inc. - YakimaYakima, WA(509) 225-9404Bacteria
Energy Laboratories Inc.Casper, WY(307) 235-0515Radioactivity

Labs run by water utilities

4 labs named for a water utility or its plant. A utility’s lab may test only its own system’s water, so call before taking a sample there.

Labs run by water utilities, certified by Oregon
LabCityPhoneCertified for
Coos Bay-North Bend Water BoardCoos Bay(541) 267-3128 ext. 252Bacteria
City of Corvallis Water Quality LaboratoryCorvallis(541) 766-6570Bacteria
Portland Water Bureau LaboratoryPortland(503) 823-1839Bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
City of WoodburnWoodburn(503) 982-5282Bacteria

What to ask a lab to test

Source: Oregon Environmental Laboratory Accreditation Program, drinking water labs, as listed in TNI LAMS, read Oct. 13, 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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