Regulatory Resources for Ontario Systems
The following links are sorted by their relevance to categories of drinking water systems.
If you are unsure of what regulation your system falls under, the documents below provide information on O. Reg. 170/03 and O. Reg. 319/08 systems.
Drinking Water Systems Under O. Reg. 170/03
Drinking Water Systems Under O. Reg. 319/08
Visit our online library’s main webpage to find more resources on topics related to drinking water.
Large O. Reg. 170/03 Systems
2015 Watermain disinfection procedure
2020 Watermain disinfection procedure
A Guide for Drinking Water System Owners Seeking To Undertake a Backflow Prevention Program
A Student’s Guide to Drinking Water and Wastewater Operator Certification
Certification Guide for Operators and Water Quality Analysts of Drinking Water Systems
Design Guidelines for Drinking-Water Systems
Drinking Water Operator-In-Training Requirements
Experience as a Drinking Water Operator
Find Licensed Well Contractors
Guide for Applying for Drinking Water Works Permit Amendments, License Amendments
Guide for Applying for Fragmentation and Relief from Regulatory Requirements
Guide to Permit to Take Water Application Form
Guide to Supporting Information Required for a Municipal Drinking Water License Renewal
Laboratories Licensed to Test for Lead
Notice of Adverse Test Results and Issue Resolution
Ontario’s Drinking Water Quality Management Standard – Pocket Guide
Ontario Water Resources Act, R.S.O. 1990, c. O.40
O. Reg. 128/04: Certification of Drinking Water System Operators and Water Quality Analysts
O. Reg. 169/03: Ontario Drinking Water Quality Standards
O. Reg. 170/03: Drinking Water Systems
O. Reg. 248/03: Drinking Water Testing Services
O. Reg. 284/07: Source Protection Areas and Regions
O. Reg. 387/04: Water Taking and Transfer
Overall Responsible Operator vs. Operator-in-Charge
Practices for Collection and Handling of Drinking Water Samples
Procedure for Disinfection of Drinking Water in Ontario
Questions and Answers – Watermain Disinfection Procedure
Request for Early Implementation of the Watermain Disinfection Procedure
Required Qualifications to Operate, Test or Sample Drinking Water Systems
Taking Care of Your Drinking Water: A Guide for Members of Municipal Councils
Technical Support Document for Ontario Drinking Water Standards, Objectives and Guidelines
Training Requirements for Drinking Water Operators
Water and Energy Conservation Guidance Manual for Sewage Works
Watermain Disinfection Procedure
Water Quality Analyst Experience and Director Approved Course
Water Supply Wells: Requirements and Best Practices
Well Regulation – Well Construction Licensing (technical bulletin)
Well Regulation – Well Maintenance (technical bulletin)
Wells Regulation – Completing the New Well’s Structure (technical bulletin)
Wells Regulation – Flowing Wells (technical bulletin)
Wells Regulation – Installing Equipment in a Well (technical bulletin)
Wells Regulation – Siting a New Well (technical bulletin)
Wells Regulation – Well Abandonment: How to Plug and Seal a Well (technical bulletin)
Wells Regulation – Well Abandonment: When to Plug and Seal a Well (technical bulletin)
Wells Regulation – Well Disinfection (technical bulletin)
Wells Regulation – Well Repairs and Other Alterations (technical bulletin)
Small O. Reg. 170/03 Systems
2015 Watermain disinfection procedure
2020 Watermain disinfection procedure
A Guide for Operators and Owners of Drinking Water Systems that Serve Designated Facilities
A Guide for Owners and Operators of Non-Municipal Year-Round Residential Drinking Water Systems
Application Form for Fragmentation or Relief from Regulatory Requirements form
Declaration of Professional Engineer and Notice of Completion for changes to a drinking water system
Drinking Water System Profile Information form
Find Licensed Well Contractors
Flushing and Sampling for Lead
Flushing Plumbing in Schools, Private Schools and Day Nurseries
Flushing your Plumbing: At-a-glance guide for schools, private schools and child care centres
Guide for Applying for Drinking Water Works Permit Amendments, License Amendments
Guide for Applying for Fragmentation and Relief from Regulatory Requirements
Guide for Schools, Private Schools and Day Nurseries on Flushing and Testing for Lead
Guide to Permit to Take Water Application Form
How to Maintain Your Trained Person Designation
Identify and control excess lead in drinking water in schools and child care centres
Laboratories Licensed to Test for Lead
Laboratory Services Notification for adding or changing labs
Notice of Adverse Test Results and Issue Resolution
Ontario Drinking Water Regulations for Small Systems
O. Reg. 128/04: Certification of Drinking Water System Operators and Water Quality Analysts
O. Reg. 169/03: Ontario Drinking Water Quality Standards
O. Reg. 170/03: Drinking Water Systems
O. Reg. 243/07: Schools, Private Schools and Day Nurseries
Practices for Collection and Handling of Drinking Water Samples
Procedure for Disinfection of Drinking Water in Ontario
Questions and Answers – Watermain Disinfection Procedure
Request for Early Implementation of the Watermain Disinfection Procedure
Required Qualifications to Operate, Test or Sample Drinking Water Systems
Rules for non-municipal drinking water systems
Sampling for Lead: At-a-Glance guide for schools, private schools and child care centres
Sampling for Lead in Schools, Private Schools and Day Nurseries
Technical Support Document for Ontario Drinking Water Standards, Objectives and Guidelines
Training Manual for Supervised Persons Conducting Operational Checks
Watermain Disinfection Procedure
Water Supply Wells: Requirements and Best Practices
Well Regulation – Well Construction Licensing (technical bulletin)
Well Regulation – Well Maintenance (technical bulletin)
Wells Regulation – Completing the New Well’s Structure (technical bulletin)
Wells Regulation – Flowing Wells (technical bulletin)
Wells Regulation – Installing Equipment in a Well (technical bulletin)
Wells Regulation – Siting a New Well (technical bulletin)
Wells Regulation – Well Abandonment: How to Plug and Seal a Well (technical bulletin)
Wells Regulation – Well Abandonment: When to Plug and Seal a Well (technical bulletin)
Wells Regulation – Well Disinfection (technical bulletin)
Wells Regulation – Well Repairs and Other Alterations (technical bulletin)
O. Reg. 319/08 Systems
Find Licensed Well Contractors
Guide for Applying for Drinking Water Works Permit Amendments, License Amendments
Laboratories Licensed to Test for Lead
Laboratory Services Notification (LSN) Small Drinking Water Systems Regulation (O.Reg. 319/08)
Notice of Adverse Test Results and Issue Resolution – Small Drinking Water Systems (MOHLTC)
Ontario Water Resources Act, R.S.O. 1990, c. O.40
O. Reg. 169/03: Ontario Drinking Water Quality Standards
O. Reg. 319/08: Small Drinking Water Systems
O. Reg. 387/04: Water Taking and Transfer
Practices for Collection and Handling of Drinking Water Samples
Small Drinking Water System Identification
Small Drinking Water Systems under the Health Protection and Promotion Act – Treatment Options
Small Drinking Water Systems under the Health Protection and Promotion Act – Sampling and Testing
Small Drinking Water Systems under the Health Protection and Promotion Act – Operator Training
Small Drinking Water Systems under the Health Protection and Promotion Act – Get to Know the Law
Small Drinking Water Systems under the Health Protection and Promotion Act – Source Water
Technical Support Document for Ontario Drinking Water Standards, Objectives and Guidelines
Water Supply Wells: Requirements and Best Practices
Well Regulation – Well Construction Licensing (technical bulletin)
Well Regulation – Well Maintenance (technical bulletin)
Wells Regulation – Completing the New Well’s Structure (technical bulletin)
Wells Regulation – Flowing Wells (technical bulletin)
Wells Regulation – Installing Equipment in a Well (technical bulletin)
Wells Regulation – Siting a New Well (technical bulletin)
Wells Regulation – Well Abandonment: How to Plug and Seal a Well (technical bulletin)
Wells Regulation – Well Abandonment: When to Plug and Seal a Well (technical bulletin)
Wells Regulation – Well Disinfection (technical bulletin)
Wells Regulation – Well Repairs and Other Alterations (technical bulletin)
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Lead
‘Children up to six years old are more sensitive to the effects of lead because they are still developing and their small bodies can absorb it more easily than adults. Even small amounts of lead can be harmful to young children, infants and pregnant women (Ministry of the Environment, Conservation and Parks, 2020).’
The following links provide information regarding lead in drinking water and how to minimize exposure through line replacement, flushing, treatment and sampling programs.
Visit our online library’s main webpage to find more resources on topics related to drinking water.
Abstracts
Effectiveness of Prevailing Flush Guidelines to Prevent Exposure to Lead in Tap Water
Community Communication
Communicating about Lead Service Lines
Contaminants in the Water Supply: Lead
Daily cleaning tips to clean your home’s drinking water pipes
Drinking water: What about lead?
How to clean your faucet aerator
How to Identify Lead Free Certification Marks for Drinking Water System & Plumbing Products
How to know if you have a lead water pipe
How to replace your lead pipes
How to test your water for lead
Lead and Drinking Water: Talking with Your Community
Lead in Drinking Water: Fact Sheet
Together, Let’s Get the Lead Out!
Lead Service Line Replacement
Approaches to Lead Service Line Replacement
Collaborating to Replace Lead Service Lines Webinar: Filter Effectiveness
Communicating about Lead Service Lines
Coordinating and Implementing Replacement of Lead Service Lines
Digging Deep – Searching Decades of National Records to Find Lead Service Lines and Goosenecks
Encouraging Customer-Initiated LSL Replacement Webinar: Two Case Studies
Engaging Communities in Planning and Communicating about LSL Replacement Webinar
Equity Considerations in LSL Replacement Programs Webinar
High‐Velocity Household and Service Line Flushing Following LSL Replacement
How to check your water service line material
How to Identify Lead Free Certification Marks for Drinking Water System & Plumbing Products
Identifying Service Line Material
Information for Property Owners about Lead Water Service Line Replacement
Intensive flushing to clean your home’s drinking water pipes following a LSL replacement
Introduction to Lead and Lead Service Line Replacement
Lead in Water and Full Lead Service Line Replacement
Lead Service Line Identification and Replacement: Introduction to the Series
Lead Service Line Replacement Collaborative
Lead Service Line Replacement: Funding
Lead Service Line Replacement: Legal Factors
Lead Service Line Replacement: Outreach Materials
Lead Service Line Replacement: Plan Development
Lead Service Line Replacement Practices
Lead Service Line Replacement: Vital Tips from Leading Utility Managers
Lead Service Lines Frequently Asked Questions
Managing Lead in Drinking Water
Managing Lead in Pipe Scales – Understanding How Water Quality Affects Lead Release
Mapping Lead Service Lines: Charting a Path to Engage a Community Webinar
Mapping Lead Service Line Probability in Small Water Systems
Preparing a Lead Service Line Inventory
Q&A from Lead Service Line Replacement: Vital Tips from Leading Utility Managers
RCAP, Small Water Systems and Lead Service Line Inventories Webinar
Replacing lead service lines at Denver Water
Replacing Lead Service Lines in Early Learning Environments Webinar
Strategies to Obtain Customer Acceptance of Complete Lead Service Line Replacement
Understanding Lead Service Line Replacement Techniques
Use of Lead Free Pipes, Fittings, Fixtures, Solder, and Flux for Drinking Water
Managing & Minimizing Exposure
3Ts for Child Care Facilities: A Training, Testing and Taking Action Approach
3Ts for Public Water Utilities: A Training, Testing and Taking Action Approach
3Ts for Reducing Lead in Drinking Water Toolkit
3Ts for Tribal Schools: A Training, Testing and Taking Action Approach
Aggregation of Lead Phosphate Particles: Implication for Lead Removal in Tap Water
Chloride to Sulfate Mass Ratio and Galvanic Connection Changes – Impact on Lead Leaching
Daily cleaning tips to clean your home’s drinking water pipes
Flint, MI Drinking Water Crisis
Flint Water Crisis: Can It Happen in Canada?
Guidance on Controlling Corrosion in Drinking Water Distribution Systems
Guide for Small Community Water Suppliers and Local Health Officials on Lead in Drinking Water
How to clean your faucet aerator
Identify and Remove Sources of Lead
Identifying Service Line Material
Intensive flushing to clean your home’s drinking water pipes
Lead and Copper Corrosion: An Overview of WRF Research
Lead and Copper Corrosion Control in New Construction
Lead and Copper Rule Monitoring and Reporting Guidance for Public Water Systems
Lead and Copper Rule Revisions White Paper
Lead in Drinking Water: Homes and Schools
Lead (IV) Oxide Formation and Stability in Drinking Water Distribution Systems
Lead Safe Toolkit for Home-Based Child Care Webinar Series – Lead in Drinking Water
Minimize Your Risk of Lead Exposure
Optimal Corrosion Control Treatment Evaluation Technical Recommendations
Poisoned Pipelines: What Can Be Learned from the Catastrophe in Flint, Michigan?
Proposed Revisions to the Lead and Copper Rule
Public Health and Industry: Partners In Reducing Lead Exposure
Use of Lead Free Pipes, Fittings, Fixtures, Solder, and Flux for Drinking Water
When to Make a Corrosion Control Treatment Change
Basic Information about Lead in Drinking Water
Contaminants in the Water Supply: Lead
Drinking water: What about lead?
Guidelines for Canadian Drinking Water Quality for Lead
Is there Lead in my Drinking Water? Brochure
Lead in Drinking Water Fact Sheet
Lead in Drinking Water ‐ Frequently Asked Questions
Lead in Drinking Water – NSF Certified Filters
Sources of Lead in Drinking Water
Water Talk – Lead in drinking water
Standards
AWWA C810-17 REPLACEMENT AND FLUSHING OF LEAD SERVICE LINES
INTERNAL CORROSION CONTROL AND LEAD SERVICE LINE REPLACEMENT DVD
M58 INTERNAL CORROSION CONTROL IN WATER DISTRIBUTION SYSTEMS, SECOND EDITION
Testing
Assessing Portable Analyzers for Lead Testing in School Drinking Water
Evaluation of Lead Line Sampling Strategies
Lead Sampling Protocols for School Drinking Water
Testing for Lead In School Drinking Water: A Summary of Sampling Protocols
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