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Document ID ca-gsdwcfit-2017-05-04 Title Guidance For Safe Drinking Water In Canada: From Intake To Tap URL https://www.canada.ca/en/health-canada/services/environmental-workplace-health/reports-publications/water-quality/guidance-safe-drinking-water-canada-intake-health-canada-2001.html Jurisdiction /ca Subdomain(s) Drinking water, Water treatment, Water distribution Language en Status completed Analyzed at 2026-03-16 07:40:27.686387+00:00 Relevance Authoritative guidance on the multi-barrier approach for drinking water systems.

Q Qualitative Requirements (60)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001reportinghealthrecommendedConsumer Information Accessdrinking waterAuthorities should also ensure consumers have access to information about their drinking water supply which may affect their health.high
#Q002treatmenthealthrecommendedDisinfection of Drinking Water Suppliesdrinking waterTherefore, barring system-specific exemptions, it is recommended that all drinking water supplies be disinfected.Barring system-specific exemptionshigh
#Q003treatmenttreatmentrecommendedMinimum Treatment for Surface Waterdrinking waterIn addition, minimum treatment of all supplies derived from surface water sources and groundwater impacted by surface waters should include coagulation, sedimentation and filtration, or equivalent technologies.Applies to supplies derived from surface water sources and groundwater impacted by surface watershigh
#Q004designtreatmentrecommendedUse of Alternative Treatment Approachesdrinking waterAlternative approaches should only be used if it can be demonstrated these are better or equivalent ways of achieving the same objectives.When minimum treatment criteria are not being followed strictlyhigh
#Q005operationalhealthrecommendedCross-Connection Control Programsdrinking waterFor this reason, communities are strongly encouraged to have active cross-connection control programs in place, supported by municipal by-laws.high
#Q006monitoringhealthmandatoryAppropriate Microbiological Testsdrinking waterApproved microbiological tests must be those developed for drinking water; methodologies for environmental sample analysis are not appropriate in this situation.high
#Q007administrativeoperationalrecommendedLaboratory Accreditationdrinking waterLaboratories should be accredited to perform the specific analyses required.high
#Q008reportinghealthmandatoryCommunication of Test Resultsdrinking waterIt is imperative that clear lines of communication be established between the laboratory, the agency operating the treatment plant and the regulator, so test results which may affect public health can be dealt with in an open, timely and effective manner.high
#Q009operationalhealthrecommendedSource Water Risk Assessmentdrinking waterAt this stage, an assessment should be made of the potential risks associated with the source.When identifying water to be used as the source of drinking waterhigh
#Q010designoperationalrecommendedSystem Risk Minimization Designdrinking waterThe system should be designed to minimize the impact of the risks over time.high
#Q011operationalhealthrecommendedIntake and Reservoir Hazard Assessmentdrinking waterIn assessing these components, all potential hazards and their causes should be identified, and the level of risk associated with each of the hazards estimated, so priorities for risk management action can be established.When assessing groundwater wells, intakes and raw water reservoirshigh
#Q012designtreatmentrecommendedTreatment System Site-Specific Designdrinking waterTreatment systems should be designed based on the site-specific raw water quality. Seasonal variations should be taken into account.high
#Q013designhealthrecommendedTreatment Risk Mitigationdrinking waterThe treatment selected should address all potential hazards and the level of risk associated with those hazards.high
#Q014designhealthrecommendedReservoir and Distribution Design Criteriadrinking waterTreated water reservoirs and distribution systems should be designed to take the following into account: access by wildlife and people, system capacity, emergency water storage, contact time required for disinfection, minimizing or eliminating dead ends, and cross-connection controls.high
#Q015designoperationalrecommendedCompliance with By-laws and Regulationsdrinking waterThey should also be designed and constructed in compliance with all local or provincial by-laws, best management practices and regulations.Applies to treated water reservoirs and distribution systemshigh
#Q016designhealthmandatoryCertification of Plumbing Productsdrinking waterlicensed home builders and plumbers are required to install only certified products into homes in order to meet the requirements of plumbing codes.high
#Q017administrativeoperationalrecommendedWaterworks Projects Reviewdrinking waterWaterworks projects should be reviewed and, once approved, should have conditions to be met clearly outlined.high
#Q018monitoringoperationalrecommendedTreatment Plant Inspectionsdrinking waterTreatment plants should be inspected on an on-going basis to ensure quality benchmarks are being met.high
#Q019corrective_actionoperationalrecommendedRemediation Processesdrinking waterIf these benchmarks are not being met, processes should be in place to remediate the situation.When quality benchmarks are not being methigh
#Q020reportinghealthmandatoryPublic Reporting System for Health Risksdrinking waterit is imperative for a reporting system to be in place for notifying the public when test results show drinking water presents a potentially serious health risk, or to explain the significance of changes in aesthetic quality.high
#Q021monitoringoperationalrecommendedRepresentative Sampling Assurancedrinking waterBecause samples are taken from such a small fraction of the water in any given system, as much as possible should be done to ensure the water in the samples is representative of the quality of the water throughout the plant and distribution system.high
#Q022administrativeoperationalmandatoryUp-to-Date Distribution Drawingsdrinking waterIn order to quickly remediate situations where water flow appears to be restricted, it is imperative that up-to-date drawings of the distribution system be kept in an accessible location.high
#Q023operationalhealthmandatoryDisinfection Need Trainingdrinking waterThis training must include basic education about the need for disinfection to ensure public health goals are met.Applies to treatment plant and distribution system operator traininghigh
#Q024operationaloperationalmandatoryOperator Skill Maintenancedrinking waterIt is imperative that operators and other staff have on-going access to opportunities for maintaining and upgrading their skills and knowledge on a regular basis.high
#Q025corrective_actionoperationalmandatoryIncident and Emergency Proceduresdrinking waterEvery system must have a set of procedures to follow in the event of incidents and emergencies.high
#Q026corrective_actionreportingrecommendedEmergency Plan Contentsdrinking waterEmergency plans should include clear procedures for the remediation of the situation and communication with appropriate authorities.high
#Q027monitoringoperationalmandatoryEvaluation of Drinking Water Servicesdrinking waterAny system as large and important as delivering clean, safe and reliable drinking water requires evaluation to ensure services are being delivered as planned and expected.high
#Q028reportinghealthmandatoryBoil Water Advisory Notification Detailsdrinking waterIn the area of boil water advisories, members of the public must be informed when an advisory has been issued for their community, be given detailed information about the reason(s) for the advisory (whether it is precautionary or in response to an outbreak), and be told how long it is expected to be in place.When an advisory has been issued for the communityhigh
#Q029reportinghealthrecommendedAdvisories for Visitorsdrinking waterAuthorities should also consider visitors to their community when issuing an advisory - frequent advertising in highly visible areas may be prudent.When issuing an advisoryhigh
#Q030reportinghealthrecommendedPrivate Well Testing Notificationdrinking waterPrivate well owners need to be made aware that they are responsible for the quality of their own water, and that this should be tested regularly.high
#Q031administrativeoperationalmandatoryJurisdictional Management Responsibilitydrinking waterEach of these authorities must find ways to competently manage the water supplies in its jurisdiction.high
#Q032designhealthrecommendedDesign and Operation Objectivesdrinking waterMinimum criteria for design, construction (including materials) and operation should ensure public health protection and environmental quality objectives are met.high
#Q033monitoringreportingrecommendedCompliance Monitoring Accuracydrinking waterCompliance monitoring should be carried out using various methods to ensure test results are accurate and reported properly.high
#Q034administrativeoperationalrecommendedLaboratory Selection and QA/QC Processesdrinking waterEach jurisdiction should have approval processes in place for selecting laboratories, or quality assurance/quality control (QA/QC) programs, for routine testing of drinking water samples for all relevant substances, especially those which indicate the microbiological quality of drinking water.high
#Q035operationaloperationalrecommendedOperational and Plant Supervision Requirementsdrinking wateroperational-related monitoring requirements should be in place and clear; plants should be supervised by trained and certified operators; operator training programs should be available; facilities should be inspected on a regular basis; and administrative support should be available.high
#Q036administrativeoperationalrecommendedWater Management Activity Protocolsdrinking waterProtocols should be in place for all activities, including selection of laboratories, routine monitoring, sample analysis and public notification, and may vary from jurisdiction to jurisdiction.high
#Q037reportingreportingrecommendedMonitoring Result Reportingdrinking waterMonitoring results should be reported directly to the drinking water authority as well as be available to the public.high
#Q038administrativeoperationalrecommendedOperator Certification Program Availabilitydrinking waterOperator certification programs should be available to ensure treatment plant operators have appropriate levels of education, experience and knowledge to allow them to competently operate the type of plant they are working in.high
#Q039administrativehealthrecommendedDrinking Water Policy Objectivesdrinking waterPolicies at all levels related to the quality of drinking water should support public health goals, such as ensuring the microbiological safety of supplies.high
#Q040designhealthrecommendedTreatment Process Selectiondrinking waterAuthorities making decisions about treatment processes should select those that consistently provide potable and aesthetically-acceptable water to users.high
#Q041administrativehealthrecommendedHealth-Based Funding Prioritizationdrinking waterfunding bodies should allocate resources along health lines: infrastructure projects that have the greatest positive health impact should be given funding priority over those that will have minimal health effects.high
#Q042operationalhealthrecommendedLocal Health Research Engagementdrinking waterJurisdictions should engage in local research to determine site specific health concerns and how research in other jurisdictions is applicable locally.high
#Q043corrective_actionoperationalrecommendedAdvance Preparation of Emergency Proceduresdrinking waterThese procedures should be in place well in advance of any event.Regarding incident and emergency procedureshigh
#Q044operationalhealthmandatoryPrivate Well Contamination Response and Abandonmentdrinking waterOwners need to know what to do should microbiological contamination occur or chemical contaminants be found in their drinking water, and how to properly abandon wells that are no longer safe or needed.Applies to owners of private wells or private surface water sourceshigh
#Q045administrativehealthmandatoryStakeholder Cooperation for Public Healthdrinking waterIn order to build public confidence in the system, these stakeholders - including government departments, industry, private sector companies, non-governmental organizations and the public - must work cooperatively without losing sight of the ultimate goal: the protection of public health.high
#Q046reportinghealthrecommendedCertified Product Procurement Advicedrinking waterDrinking water purveyors and consumers should be advised when purchasing materials that will come into contact with their drinking water (such as chemicals, plumbing materials or water filters) to buy only certified products which meet recognized health-based performance standards.high
#Q047reportingreportingguidanceRegular Drinking Water System Reportingdrinking waterIssuing regular reports about drinking water systems, including improvements and areas which need further attentionhigh
#Q048administrativehealthguidancePublic Consultation in Decision-Makingdrinking waterIncorporating public consultations into decision-making processes which have an effect on public health, including the development process for new guidelines and regulationshigh
#Q049administrativeoperationalguidanceWater Conservation Educationdrinking waterEducation about water conservation issueshigh
#Q050administrativehealthrecommendedSmall System Amalgamation Encouragementdrinking waterFor public health reasons, some small systems should be encouraged to amalgamate with municipal systems.high
#Q051operationalhealthmandatoryResearch Response Mandatedrinking waterDrinking water programs must respond to on-going research into emerging issues, with an emphasis on the microbiological quality of drinking water from source to tap.high
#Q052operationaloperationalmandatoryContinuing Education for Drinking Water Program Staffdrinking waterIt is critical for all members of a drinking water program - whether elected officials (including municipal), regulators, scientific staff, utility operators or others - to have access to continuing education in this field.high
#Q053reportinghealthrecommendedReporting Contact Point for Health Officersdrinking waterIdeally, the local health officer in each jurisdiction, or his or her designated official, would be one of the first points of contact for the laboratories to report any unacceptable water quality results.When reporting unacceptable water quality resultsmedium
#Q054administrativeoperationalrecommendedFinancial Assistance for Small System Amalgamationdrinking waterMunicipalities willing to take on ownership of these smaller systems should have access to financial assistance.For municipalities taking on ownership of smaller systemshigh
#Q055reportingreportingguidancePublic Education Topicsdrinking waterEducating the public on a number of issues, including: the benefits of disinfection over the risks of microbiological contamination and disease; how guidelines are developed and what the values mean; how to prevent deterioration of water quality in the home; and the true cost of providing safe drinking waterhigh
#Q056operationalhealthrecommendedAdherence to Drinking Water Quality Guidelinesdrinking waterThe Guidelines for Canadian Drinking Water Quality set out the basic parameters that every water system (public, semi-public and private) should strive to achieve in order to provide the cleanest, safest and most reliable drinking water supply possible.high
#Q057operationalunknownrecommendedPurveyor Research Participationdrinking waterWater purveyors and public health officials play an important role in research by collecting data about their water systems and the health of the community; they should be encouraged to participate in research activities.high
#Q058administrativehealthrecommendedSmall System Funding Supportdrinking waterFor this reason, special consideration for additional funding support should be given to small systems in rural communities which have access to a much smaller municipal tax base than larger communities and which may not, therefore, be able to contribute their share of the capital cost of the project in question.Applies to small systems in rural communitieshigh
#Q059operationalhealthmandatoryPurveyor Potable Water Obligationdrinking waterthe responsibility for regulatory oversight of public drinking water quality generally lies with the provincial and territorial governments, with the obligation to provide potable water resting with the purveyor.high
#Q060administrativeoperationalmandatoryProvincial/Territorial Guideline Implementation Responsibilitydrinking waterProvincial and territorial authorities are responsible for the implementation of these guidelines within their jurisdictions.high

P Quantitative Requirements (0)

No quantitative requirements.

D Definitions (11)

Req ID Category Name Context Confidence
#D001DWSFederal-Provincial-Territorial Subcommittee on Drinking Waterhigh
#D002CEOHFederal-Provincial-Territorial Committee on Environmental and Occupational Healthhigh
#D003CCMECanadian Council of Ministers of the Environmenthigh
#D004WQTGWater Quality Task Grouphigh
#D005QA/QCquality assurance/quality controlhigh
#D006Treatment performance criteriaeither narrative measures or numerical limits for a number of specific parameters which are required to meet a particular public health or environmental quality objectivehigh
#D007Aesthetic guidelinesaddress those parameters which affect the consumer's acceptance of the water even though the substance in question is found at concentrations below which health effects may appearhigh
#D008drinking water supplyincludes everything from the collection of the raw water to the point where the water reaches the consumerhigh
#D009Compliance monitoringrelies on sampling small amounts of water in a drinking water system and testing those samples for the presence of known and quantifiable organisms or substanceshigh
#D010multi-barrier approachrecognizes that the key to ensuring clean, safe and reliable drinking water is to implement multiple barriers which control microbiological pathogens and contaminants that may enter the water supply systemhigh
#D011Routine monitoringentails taking samples of raw water at the intake, water at the treatment plant or from wells, and treated water in the distribution system at predetermined intervals to verify the quality of the waterhigh