Public Health Inspector Resources

This collection of resources is for Public Health Inspectors working with private drinking water or small drinking water systems. Information on water sampling, analysis, regulations and waterborne pathogens including legionella are included.
Visit our online library’s main webpage to find more resources on topics related to drinking water.


Drinking Water Quality in Canada

Ontario Public Health Standards: Protocols and Guidelines

Drinking Water Haulage Guidance Document

Practices for the Collection and Handling of Drinking Water Samples

Procedure for Disinfection of Drinking Water in Ontario

Public Health Inspectors Guide

Response to Adverse Drinking Water Quality Incidents

Small Drinking Water Systems: Operator’s Guide

Small Drinking Water Systems: Who Does What in Ontario?

Technical Support Document for Ontario Drinking Water Standards, Objectives and Guidelines

Well Water Kits

Protocols & Guidelines

Operational Approaches for Recreational Water Guideline, 2018

Recreational Water Protocol, 2019

Recreational Water Reference Document, 2019

Safe Drinking Water and Fluoride Monitoring Protocol, 2019

Small Drinking Water Systems Risk Assessment Guideline, 2018


Health Protection and Promotion Act, R.S.O. 1990, c. H.7

Ontario Water Resources Act, R.S.O. 1990, c. O.40



R.R.O. 1990, Reg. 903: WELLS

Safe Drinking Water Act, 2002, S.O. 2002, c. 32

Sampling & Analysis

Bacteriological Analysis of Water: Multiple Sample Requisition for Official Agencies

Drinking Water Testing – Official Agencies | Public Health Ontario

Drinking Water Testing – Private Citizen

Ice – Treated

Instructions For Official Agencies Submitting Water Samples to the Public Health Ontario Laboratories

List of Licensed Laboratories

Potability of Water Release Form

Practices for the Collection and Handling of Drinking Water Samples

Public Beach Water

Recreational Water Facilities and Public Pools Spas

Requisition for Specimen Containers and Supplies

Sewage, Suspected Sewage Contamination – Water

Test Information Index

Water Testing – Who to Contact

Water Sample Analysis – Public Health Inspectors Guide

Well Water Testing (Private Drinking Water)


Arsenic from community water fluoridation: quantifying the effect

Benefits and Risks of Water Fluoridation : An Update of the 1996 Federal-Provincial Sub-committee Report



Diseases : Legionellosis

E. coli Bacteria

Emergency Management : Keeping Food and Water Safe after a Flood


Noroviruses Facts


Zika Virus Infection and the Flint, Michigan, Water Crisis: A Study in Surprising Commonalities

Contacts and Directories

Canadian Food Inspection Agency

Find Licensed Well Contractors

Laboratory Accreditation and Licensing

Laboratory Contact – PHU

List of Licensed Laboratories

Ministry of Agriculture, Food and Rural Affairs

Ministry of Health and Long-Term Care

Ministry of the Environment – District Locator

Ministry of the Environment – Drinking Water

Ministry of the Environment – Wells Help Desk & Records

Public Health Units

Water Testing – Who to Contact


Environmental Microbiology Investigation Requisition Form

Legionella –

Legionella and the prevention of legionellosis

Legionella: Introduction of molecular screening of environmental water samples

Legionella Investigations

Legionella (Legionnaires’ Disease and Pontiac Fever)

Legionella: questions and answers, 2nd edition

Legionella – Respiratory PCR and Culture

Legionella – Serum Antibody

Legionella spp. – Swab

Legionella spp. – Water

Legionella – Urine antigen

Legionellosis in Ontario, January 1, 2018 to December 31, 2018

Legionellosis (Legionella, Legionnaires Disease)


Legionellosis: Key Considerations for Case and Environmental Exposure Investigation

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