privatewelldata / Certified labs

Certified labs

69 labs from 2 official lists. Updated 2026-10-18. Sources : Ontario MECP – List of Licensed Laboratories · MELCCFP – DR-12-LLA-03 accredited drinking-water labs.

All lists69 Ontario MECP licence49 Quebec MELCCFP accreditation20

Hide public-system-only labs

Alberta, British Columbia, Nova Scotia, New Brunswick: we don’t list labs for these provinces. Use your province’s official list:

Links checked 2026-10-18.

Official listCertified forAccepts private wells

Accepts private well samples (listed) Certified lab Public systems only

Official resources

Règlement sur la qualité de l'eau potable (Q-2, r. 40)Québec's drinking water regulation sets the legal limits for contaminants. Use the official text when you compare your results.www.legisquebec.gouv.qc.ca · checked 2026-10-17 (browser; 403 to bots)MELCCFP – accreditation scopes of Québec labs (DR-12-CDA)Québec's environment ministry explains what each accreditation domain code covers. Use it to see exactly which drinking-water tests a Québec lab is accredited for.www.environnement.gouv.qc.ca · checked 2026-10-18 (robots allow; direct fetch 404 – recheck URL)CALA directory of accredited laboratoriesSearch the national accreditation body's directory to check whether a lab is accredited for the water tests you need. Filter by province and by analyte.directory.cala.ca · checked 2026-10-18 Nova Scotia Health – water testingNova Scotia Health explains how to submit a well water sample and lists its current fees for bacteria and chemical packages.www.nshealth.ca · checked 2026-10-18

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69 rows · showing 1–25

AGAT Laboratories Ltd

Ottawa, Ontario · (905) 712-5108

✓ Accepts samples from private citizens

AGAT Laboratories Ltd.

Mississauga, Ontario · (905) 712-5108

✓ Accepts samples from private citizens

LeadOrganic chemicals / pesticides

AGAT Laboratories Ltd.

Mississauga, Ontario · (905) 712-5108

✓ Accepts samples from private citizens

Organic chemicals / pesticides

ALS Environmental (Thunder Bay)

Thunder Bay, Ontario · (807) 623-6463

✓ Accepts samples from private citizens

Lead

ALS Environmental (Waterloo)

Waterloo, Ontario · (519) 886-6910

✓ Accepts samples from private citizens

LeadOrganic chemicals / pesticides

ALS Environmental (Winnipeg)

Winnipeg, Manitoba · (807) 623-6463

Aquatic and Environmental Laboratory Inc.

Barrie, Ontario · (705) 722-5227

✓ Accepts samples from private citizens

Bureau Veritas Canada (2019) Inc.

Mississauga, Ontario · (905) 817-5700

✓ Accepts samples from private citizens

LeadOrganic chemicals / pesticides

Bureau Veritas Canada (2019) Inc.

Unit 4 Mississauga, Ontario · (905) 817-5700

✓ Accepts samples from private citizens

Radioactivity

Caduceon Environmental Laboratories (Barrie)

Ontario · (705) 252-5743

✓ Accepts samples from private citizens

Caduceon Environmental Laboratories (Kingston)

Kingston, Ontario · (613) 544-2001

✓ Accepts samples from private citizens

Organic chemicals / pesticides

Caduceon Environmental Laboratories (Ottawa)

Ottawa, Ontario · (613) 526-0123

✓ Accepts samples from private citizens

Lead

Caduceon Environmental Laboratories (Richmond Hill)

Richmond Hill, Ontario · (289) 475-5442

✓ Accepts samples from private citizens

Organic chemicals / pesticides

Caduceon Environmental Laboratories (Windsor)

Windsor, Ontario · (519) 966-9541

✓ Accepts samples from private citizens

City of Hamilton Environmental Laboratory

Hamilton, Ontario · (905) 546-2424 ext. 1145

⚠ Likely serves public water systems only

LeadOrganic chemicals / pesticides

City of Ottawa Laboratory Services

Gloucester, Ontario

⚠ Likely serves public water systems only

LeadOrganic chemicals / pesticides

City of Peterborough Environmental Protection Laboratory

Peterborough, Ontario · (705) 742-7777 dial 2,2,1

✓ Accepts samples from private citizens

Lead

E3 Laboratories Inc.

Niagara-on-the-Lake, Ontario · (905) 641-9000

✓ Accepts samples from private citizens

Eurofins Environment Testing Canada Inc.

Ottawa, Ontario · (613) 727-5692

✓ Accepts samples from private citizens

LeadOrganic chemicals / pesticides

Gelda Scientific

Mississauga, Ontario · (905) 673-9320

✓ Accepts samples from private citizens

Halton Regional Laboratory

Burlington, Ontario · (905) 825-6000 ext. 6254

Lead

Health Physics Laboratory, Ontario Power Generation

Whitby, Ontario · (905) 430-2215 ext. 402-3277

Radioactivity

Laboratory Services Division, University of Guelph

Guelph, Ontario · (519) 767-6299 Toll Free: 1-877-UofG-AFL (1-877- 863-4235)

Ministry of Labour, Immigration, Training & Skills Development – Radiation Protection Services

Unit 1 Mississauga, Ontario · (888) 999-3921

Radioactivity

Ministry of the Environment, Conservation & Parks – Laboratory Services Branch

Etobicoke, Ontario · (437) 771-9439

LeadOrganic chemicals / pesticides

Near North Laboratories Inc.

North Bay, Ontario · (705) 497-0550

✓ Accepts samples from private citizens

Niagara Analytical Laboratories Inc.

Niagara Falls, Ontario · (905) 374-5227

✓ Accepts samples from private citizens

Paracel Laboratories Ltd.

Ontario · (613) 731-9577

LeadOrganic chemicals / pesticides

Public Health Ontario Laboratory (Kingston)

Kingston, Ontario · Customer Service Centre: (416) 235-6556 1 (877) 604-4567 (Toll Free)

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (Hamilton)

Hamilton, Ontario · Customer Service Centre: (416) 235-6556 1 (877) 604-4567 (Toll Free)

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (London)

Unit 102 London, Ontario · Customer Service Centre: (416) 235-6556 1 (877) 604-4567 (Toll Free) Local: (519) 455-9310

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (Orillia)

Orillia, Ontario · Customer Service Centre: (416) 235-6556 1 (877) 604-4567 (Toll Free)

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (Ottawa)

Ottawa, Ontario · Customer Service Centre: (416) 235-6556 1 (877) 604-4567 (Toll Free)

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (Peterborough)

Peterborough, Ontario · Customer Service Centre (416) 235-6556 1 (877) 604-4567 (Toll Free)

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (Sault Ste. Marie)

Sault Ste. Marie, Ontario · Customer Service Centre: (416) 235-6556 1 (877) 604-4567 (Toll Free) Local: (705) 254-7132

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (Sudbury)

Sudbury, Ontario · Customer Service Centre: (416) 235-6556 1 (877) 604-4567 (Toll Free) Local: (705) 564-6917

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (Thunder Bay)

Thunder Bay, Ontario · Customer Service Centre: (416) 235-6556 1 (877) 604-4567 (Toll Free) Local: (807) 622-6449

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (Timmins)

Timmins, Ontario · Customer Service Centre (416) 235-6556 1 (877) 604-4567 (Toll Free)

✓ Accepts samples from private citizens

Public Health Ontario Laboratory (Toronto)

Suite 1701 Toronto, Ontario · Customer Service Centre (416) 235-6556 1 (877) 604-4567 (Toll Free)

✓ Accepts samples from private citizens

Regional Municipality of Waterloo, Environmental Enforcement and Laboratory Services

Cambridge, Ontario · (519) 650-8260

⚠ Likely serves public water systems only

LeadOrganic chemicals / pesticides

SGS Canada Inc. (Lakefield)

Lakefield, Ontario · (705) 652-2000

✓ Accepts samples from private citizens

LeadOrganic chemicals / pesticidesRadioactivity

LeadOrganic chemicals / pesticides

Testmark Laboratories Ltd. (Sudbury)

Garson, Ontario · (705) 693-1121

✓ Accepts samples from private citizens

LeadOrganic chemicals / pesticides

Testmark Laboratories Ltd. (Thunder Bay)

Thunder Bay, Ontario · (807) 333-0921

✓ Accepts samples from private citizens

Lead

Testmark Laboratories Ltd. (Timmins)

Timmins, Ontario · (705) 531-1121

✓ Accepts samples from private citizens

Lead

Toronto Water Laboratory

Toronto, Ontario · (416) 392-2960

LeadOrganic chemicals / pesticides

York-Durham Regional Environmental Laboratory

Pickering, Ontario · (905) 686-0041

✓ Accepts samples from private citizens

LeadOrganic chemicals / pesticides

Certified labs

Official resources

AGAT Laboratories Ltd

AGAT Laboratories Ltd.

AGAT Laboratories Ltd.

ALS Environmental (Thunder Bay)

ALS Environmental (Waterloo)

ALS Environmental (Winnipeg)

Aquatic and Environmental Laboratory Inc.

Bureau Veritas Canada (2019) Inc.

Bureau Veritas Canada (2019) Inc.

Caduceon Environmental Laboratories (Barrie)

Caduceon Environmental Laboratories (Kingston)

Caduceon Environmental Laboratories (Ottawa)

Caduceon Environmental Laboratories (Richmond Hill)

Caduceon Environmental Laboratories (Windsor)

City of Hamilton Environmental Laboratory

City of Ottawa Laboratory Services

City of Peterborough Environmental Protection Laboratory

E3 Laboratories Inc.

Eurofins Environment Testing Canada Inc.

Gelda Scientific

Halton Regional Laboratory

Health Physics Laboratory, Ontario Power Generation

Laboratory Services Division, University of Guelph

Ministry of Labour, Immigration, Training & Skills Development – Radiation Protection Services

Ministry of the Environment, Conservation & Parks – Laboratory Services Branch

Near North Laboratories Inc.

Niagara Analytical Laboratories Inc.

Paracel Laboratories Ltd.

Public Health Ontario Laboratory (Kingston)

Public Health Ontario Laboratory (Hamilton)

Public Health Ontario Laboratory (London)

Public Health Ontario Laboratory (Orillia)

Public Health Ontario Laboratory (Ottawa)

Public Health Ontario Laboratory (Peterborough)

Public Health Ontario Laboratory (Sault Ste. Marie)

Public Health Ontario Laboratory (Sudbury)

Public Health Ontario Laboratory (Thunder Bay)

Public Health Ontario Laboratory (Timmins)

Public Health Ontario Laboratory (Toronto)

Regional Municipality of Waterloo, Environmental Enforcement and Laboratory Services

SGS Canada Inc. (Lakefield)

SGS Canada Inc. (London)

Testmark Laboratories Ltd. (Kirkland Lake)

Testmark Laboratories Ltd. (Mississauga)

Testmark Laboratories Ltd. (Sudbury)

Testmark Laboratories Ltd. (Thunder Bay)

Testmark Laboratories Ltd. (Timmins)

Toronto Water Laboratory

York-Durham Regional Environmental Laboratory

AGAT Laboratoires

AGAT Laboratoires ltee

Agro-Enviro-Lab

Bureau Veritas Canada (2019) Inc.

Bureau Veritas Canada (2019) inc.

Bureau Veritas Canada (2019) inc.

Centre d'expertise en analyse environnementale du Quebec (MELCCFP)

Centre d'expertise en analyse environnementale du Quebec (MELCCFP)

Certilab inc.

Debit Lab inc.

Eurofins EnvironeX

Eurofins EnvironeX

H2Lab inc.

H2Lab inc.

H2Lab inc.

H2Lab inc.

Laboratoire AquaLabo

SGS Canada Inc.

Techni-Lab S.G.B. Abitibi inc.

Ville de Gatineau