Parameter Viewer

Document ID ca-wwhtyww-2024-12-12 Title Well water and health: Test your well water URL unknown Jurisdiction /ca Subdomain(s) none Language Status completed Analyzed at 2026-05-13 15:09:03.104854+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (53)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001operationaloperationalmandatoryPrivate Well Owner Responsibilitydrinking waterAs a private well owner, you're responsible for monitoring and maintaining your water quality.Applies to private well ownershigh
#Q002monitoringhealthrecommendedMicrobial Contamination Testing Frequencydrinking waterTest your well water at least once every 6 months for microbial contamination.high
#Q003administrativehealthrecommendedChemical Contamination Testing Consultationdrinking waterCheck with your local public health authorities about how often to test for specific chemicals in your area.high
#Q004monitoringaestheticrecommendedGeneral Water Quality Parameters Testing Frequencydrinking waterGeneral water quality parameters should be tested once every 2 years.high
#Q005monitoringoperationalrecommendedEvent-Based Water Testingdrinking waterYou should also test your water when: there are changes in land use or activities near your well you notice a change in the colour, taste or smell of your water you complete repairs or maintenance to your well or related equipmentTriggered by specific events like land use changes, aesthetic changes, or well maintenancehigh
#Q006monitoringhealthguidanceFrequent Testing for Vulnerable Wellsdrinking waterYou may need to test more frequently if your well is vulnerable to contamination.If the well is dug, in bedrock, has only a thin layer of soil over it, or is shallowhigh
#Q007monitoringoperationalmandatoryLaboratory Instruction Compliancedrinking waterReliable and accurate results also depend on following all instructions from the accredited laboratory on: collecting the water sample labeling and storing the water sample completing and submitting the test forms handling and transporting the water sample to the laboratoryApplies when submitting samples for testinghigh
#Q008corrective_actionhealthrecommendedInitial Confirmation Sampling for Microbial Contaminationdrinking waterCollect and test another water sample as soon as possible to confirm whether your water is contaminated with E. coli , total coliforms or both.If E. coli or total coliform bacteria are found in your well water samplehigh
#Q009corrective_actionhealthrecommendedSecondary Confirmation Sampling for Microbial Contaminationdrinking waterIf the second test doesn't show any contamination, test a third sample to confirm this result.If the second test doesn't show any contaminationhigh
#Q010corrective_actionhealthrecommendedCorrective Action for Confirmed Microbial Contaminationdrinking waterIf the second or third test confirms that your well water is contaminated, shock disinfect your well and take corrective actions.If the second or third test confirms that your well water is contaminatedhigh
#Q011corrective_actionhealthrecommendedBoil Water Advisory Action for E. colidrinking waterIf there's E. coli in your well water sample: boil any water used for drinking, cooking or teeth brushing or use another safe source of water until test results show that the water is safe to drinkIf there's E. coli in your well water samplehigh
#Q012operationalhealthguidanceContinued Use Permission for Total Coliformsdrinking waterIf there is total coliform bacteria in your well water sample: you can continue to use your drinking water while you wait for further test results.If there is total coliform bacteria in your well water samplehigh
#Q013corrective_actionhealthrecommendedIllness Investigation Actiondrinking waterIf you or a family member have a gastrointestinal illness and suspect that it's related to drinking your well water: speak to your doctor and local health unit have your water testedSuspected waterborne gastrointestinal illnesshigh
#Q014corrective_actionhealthmandatoryChemical Limit Exceedance Actionsdrinking waterIf a chemical exceeds an acceptable level, it will need: additional sampling appropriate corrective actionsIf a chemical exceeds an acceptable levelhigh
#Q015administrativehealthrecommendedChemical Contaminant Information Consultationdrinking waterContact your local public health unit or drinking water authority for information on chemical contaminants that are of concern in your area.high
#Q016monitoringhealthguidanceActions for High-Risk Contamination Areasdrinking waterIf your well is in an area that's at high risk of contamination, you may need to: test more frequently look for suitable treatment optionsIf the well is in an area at high risk of contaminationhigh
#Q017monitoringaestheticrecommendedGeneral Water Quality Testing Recommendationdrinking waterYou should also test for general water quality.high
#Q018operationalaestheticguidanceAesthetic Exceedance Permissionsdrinking waterIf any of these parameters are above their aesthetic or operational objective levels, you may safely continue to drink and use your water.When aesthetic or operational objective levels are exceededhigh
#Q019treatmentaestheticguidanceOptional Treatment for Aesthetic Issuesdrinking waterYou may choose to treat your water to prevent common problems such as staining or scaling, or to improve the taste or smell of your water.To manage aesthetic parametershigh
#Q020corrective_actionhealthrecommendedImmediate Action on Guideline Exceedancesdrinking waterIf there are contaminants in your water above the recommended guideline values, take corrective action as soon as possible.If there are contaminants in water above the recommended guideline valueshigh
#Q021operationaloperationalrecommendedAnnual EHSS Conductrecreational waterAn EHSS should be conducted on an annual basis, just before the start of the swimming season.Prior to the start of the swimming seasonhigh
#Q022monitoringhealthguidelinePrimary Contact Monitoring Frequencyrecreational waterIn general, recreational areas used for primary contact activities are monitored for fecal indicators (such as E. coli or enterococci) at a minimum frequency of one sampling event per week during the swimming season.During the swimming season for primary contact activitieshigh
#Q023corrective_actionhealthrecommendedBAV Exceedance Responserecreational waterIf E. coli or enterococci concentrations exceed the established BAVs, this should trigger actions.Exceedance of established Beach Action Valueshigh
#Q024reportinghealthrecommendedCyanobacteria Advisory Issuancerecreational waterA swimming/contact advisory should be issued as a precaution.Where a planktonic bloom has developed, or the guideline value for total microcystins is exceededhigh
#Q025reportinghealthrecommendedSwimmer's Itch Warning Postingrecreational waterWarning signs should be posted in recreational water areas where cases of swimmer's itch have been reported.Following reports of cases of cercarial dermatitishigh
#Q026operationaloperationalrecommendedLaboratory Sampling Compliancerecreational waterAll collection procedures and laboratory analyses should be carried out as directed by the responsible authority.high
#Q027operationaloperationalmandatoryPhysical Hazard Managementrecreational waterCheck for hazards in the water and on the beach, remove hazards or post warnings, when required.high
#Q028monitoringoperationalrecommendedMonitoring Plan Developmentrecreational waterUsing the data from the EHSS, a well-structured and documented monitoring plan should be developed.Based on data from the Environmental Health and Safety Survey (EHSS)high
#Q029administrativeoperationalguidanceCyanobacteria Management Planrecreational waterAreas that are at greater risk for cyanobacteria impacts may need a cyanobacteria management plan in place.Areas identified as high risk for cyanobacteria impactshigh
#Q030administrativehealthrecommendedFecal Contamination Source Identificationrecreational waterResponsible authorities are encouraged to identify the sources of fecal contamination impacting a recreational water area to aid in public health decisions and to inform remediation prioritization to improve water quality.high
#Q031reportinghealthrecommendedCyanobacteria Advisory Durationrecreational waterOnce issued, an advisory should remain in place until the associated health risk has returned to an acceptable level.Following the issuance of a planktonic bloom advisoryhigh
#Q032reportinghealthrecommendedBenthic Cyanobacteria Advisoryrecreational waterIn areas where benthic mats can be reached, individuals should be advised to avoid these areas, including keeping pets away from the impacted areas.In clear shallow areas where benthic mats are accessiblehigh
#Q033prohibitionoperationalguidanceAquatic Plant Treatment Guidancerecreational waterActions that involve trying to remove these organisms from natural waters or to treat them using pesticides may be harmful to the aquatic environment and are discouraged.Regarding aquatic vascular plants and algae in natural watershigh
#Q034monitoringoperationalrecommendedSpecialized Laboratory Requirements for Pathogensrecreational waterIf testing is necessary, it should be conducted by qualified staff in laboratories with proper biosafety level, design, equipment, and procedures.If testing for pathogenic microorganisms is necessaryhigh
#Q035monitoringhealthmandatoryChemical Contaminant Case-by-Case Assessmentrecreational waterAssess on a case-by-case basis, taking local factors into account.Regarding organic and inorganic chemicals in recreational watershigh
#Q036monitoringhealthrecommendedFecal Indicator Trend Analysisrecreational waterSummarizing fecal indicator data using geometric means is recommended for looking at water quality trends.When looking at water quality trendshigh
#Q037prohibitionhealthrecommendedBloom Avoidance Instructionrecreational waterPrimary contact activities in recreational waters should be avoided where a planktonic bloom has developed, or the guideline value for total microcystins is exceeded.Where a planktonic bloom has developed, or the guideline value for total microcystins is exceededhigh
#Q038administrativeoperationalguidanceBeach User Hygiene and Conductrecreational waterBeach users can also do their part by properly disposing of litter, using available facilities for hygiene practices, and complying with beach regulations or codes of conduct.high
#Q039administrativeunknownguidanceOther Hazard Consultationrecreational waterThe responsible authority should be contacted for further guidance on these subjects [jellyfish, leech 'bites', sea urchins and mussel shells] where necessary.Regarding hazards like jellyfish, leech bites, sea urchins and mussel shellshigh
#Q040monitoringhealthguidancePathogen Testing Informative Triggersrecreational waterTesting may be carried out if epidemiological or other types of evidence (for example, visible signs of deterioration) suggest that it may be informative.If epidemiological or other types of evidence suggest that it may be informativehigh
#Q041reportingreportingguidancePublic Information Communication Methodsrecreational waterInformation can be communicated to the public in numerous ways, such as through posted signs, printed materials, or various media sources.high
#Q042administrativehealthguidanceSecondary Contact Guideline Developmentrecreational waterFor recreational water areas that are used solely for secondary contact activities, responsible authorities may choose to develop secondary contact guidelines.For recreational water areas used solely for secondary contact activitieshigh
#Q043administrativereportingrecommendedConsult Technical Documentationotherthe individual guideline technical documents should be consulted for the most current and complete information.high
#Q044monitoringoperationalrecommendedCyanobacteria Monitoring Integrationrecreational waterThis monitoring should be included as part of the overall risk management plan for a recreational water area.high
#Q045monitoringhealthrecommendedBenthic Cyanobacteria Monitoringrecreational waterGuideline values have not been developed for benthic cyanobacteria; however, monitoring is still recommended.high
#Q046reportinghealthguidanceSeasonal Advisory Guidancerecreational waterIn areas with a history of reoccurring blooms, advisories may be left in place for the season once a bloom occurs, particularly if the water conditions change quickly or there are limited resources to conduct frequent inspections.In areas with a history of reoccurring bloomshigh
#Q047operationalhealthrecommendedUltraviolet Radiation and Heat Protectionrecreational waterAvoid overexposure to UVR and protect yourself from excessive heat.Applicable to recreational water usershigh
#Q048operationalhealthrecommendedWater Temperature Safety Exposurerecreational waterAvoid recreating for time-temperature combinations that appreciably increase or decrease core body temperature.Exposure to cold water (≤ 15 °C) is potentially life-threateninghigh
#Q049monitoringhealthrecommendedChemical Contaminant Case-by-Case Assessmentrecreational waterAssess on a case-by-case basis, taking local factors into account.Regarding organic and inorganic chemicals in recreational watershigh
#Q050monitoringoperationalrecommendedMonitoring Plan Developmentrecreational waterUsing the data from the EHSS, a well-structured and documented monitoring plan should be developed.Based on data from the Environmental Health and Safety Survey (EHSS)high
#Q051operationaloperationalguidanceShortened EHSS Implementationrecreational waterShortened surveys may also be carried out throughout the swimming season to help interpret monitoring results.Throughout the swimming season as neededhigh
#Q052monitoringoperationalguidanceVisual Cyanobacteria Monitoring Methodsrecreational waterVisual monitoring of waterbodies can include inspections for surface blooms, jar tests, or Secchi depth measurements.high
#Q053prohibitionoperationalguidanceAquatic Plant Removal Restrictionrecreational waterActions that involve trying to remove these organisms from natural waters or to treat them using pesticides may be harmful to the aquatic environment and are discouraged.Regarding aquatic vascular plants and algaehigh

P Quantitative Requirements (2)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001microbiologicalhealthguidelineE. colidrinking waterMAC0 per 100 mlAcceptable level in well water sampleApplies to private well waterhigh
#P002microbiologicalhealthguidelinetotal coliformsdrinking waterMAC0 per 100 mlAcceptable level in well water sampleApplies to private well waterhigh

D Definitions (23)

Req ID Category Name Context Confidence
#D001natural recreational watersuntreated natural fresh, marine or estuarine bodies of water used for recreational purposes such as lakes, rivers, and human-made systems (for example, artificial lakes)high
#D002EHSSenvironmental health and safety surveyhigh
#D003QMRAQuantitative microbial risk assessmenthigh
#D004BAVbeach action valueshigh
#D005PCRpolymerase chain reactionhigh
#D006Enteric pathogensthe pathogens found in feceshigh
#D007primary contact activitiessuch as swimming, wading, windsurfing and waterskiinghigh
#D008secondary contact activitiessuch as canoeing, boating or fishinghigh
#D009Predictive water quality modellinga tool that can be used to inform public health decisions regarding the suitability of water quality for recreational activities. This type of modelling uses mathematical approaches to predict whether a water quality target (such as E. coli or enterococci guideline values) may be exceeded.high
#D010Benthic cyanobacteriaform bottom-covering mats that, under certain environmental conditions, can detach from the underlying surface and accumulate along shores where they present an exposure risk.high
#D011Non-enteric pathogensfree-living microorganisms that occur in the natural environment, or microorganisms associated with urine or human body surfaceshigh
#D012Swimmer's itch (cercarial dermatitis)caused by parasitic flatworms or "schistosomes" that are free-living species that occur naturally in Canadian surface waters and are not related to fecal contamination.high
#D013total microcystins guideline valuea health-based value. It protects against the accidental ingestion of harmful quantities of microcystins in water and against the potential harmful effects after exposure to cyanobacterial material.high
#D014Total cyanobacteria cellsmeasures of planktonic cyanobacteria biomasshigh
#D015total cyanobacterial biovolumemeasures of planktonic cyanobacteria biomasshigh
#D016total chlorophyll aa measure of total phytoplankton biomasshigh
#D017Microbial contaminantspathogenic microorganisms. These are extremely small organisms that may cause disease, and include: viruses, bacteria, protozoahigh
#D018Adsorptionwhen particles stick to a surface and are held there by physical or chemical forces.high
#D019Chemical contaminantsChemical contaminants can be naturally occurring due to the types of rocks and minerals found in and near your aquifer, or because of human activity. This can include: heavy metals, trace elements, common mineralshigh
#D020pathogenic microorganismsextremely small organisms that may cause disease, and include: viruses, bacteria, protozoahigh
#D021Adsorptionwhen particles stick to a surface and are held there by physical or chemical forces.high
#D022PRDPesticides Regulatory Directoratehigh
#D023Public Registrywhere you can learn more about all pest control products registered for use in Canadahigh