| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|
| #Q001 | monitoring | reporting | mandatory | Effluent Quality Monitoring and Reporting | wastewater | The owners or operators of wastewater systems must monitor and report the quality of their effluent to show that they are meeting the standards. | high | |
| #Q002 | reporting | reporting | mandatory | Initial Identification Report Submission | wastewater | Owners or operators of wastewater systems must submit an identification report within 45 days after their system comes into operation. | Within 45 days after their system comes into operation | high |
| #Q003 | reporting | reporting | mandatory | Identification Report Updates | wastewater | Any changes or new information on your wastewater system must be submitted within 45 days of the change. | Within 45 days of the change | high |
| #Q004 | reporting | reporting | mandatory | Regular Monitoring Reports | wastewater | Owners and operators must submit monitoring reports regularly. | high | |
| #Q005 | reporting | reporting | mandatory | Quarterly Reporting Deadlines | wastewater | For those wastewater systems that are subject to quarterly reporting, the deadlines for each reporting period are as follows: * January 1 to March 31 - May 15 * April 1 to June 30 - August 14 * July 1 to September 30 - November 14 * October 1 to December 31 - February 14 | Applies to wastewater systems subject to quarterly reporting | high |
| #Q006 | reporting | reporting | mandatory | Annual Reporting Deadline | wastewater | For wastewater systems that report once a year, the deadline is: * Annual (January 1 to December 31) - February 14 | Applies to wastewater systems that report once a year | high |
| #Q007 | reporting | reporting | mandatory | Combined Sewer Overflow Report Content | wastewater | Owners or operators of wastewater systems with at least one combined sewer overflow point are required to report: * the number of days that effluent was released * the volume of effluent deposited from each overflow point for each month of the year. | Applies to wastewater systems with at least one combined sewer overflow point | high |
| #Q008 | reporting | reporting | mandatory | Combined Sewer Overflow Report Deadline | wastewater | Owners and operators must submit combined sewer overflow reports once per year by February 15. | high | |
| #Q009 | administrative | operational | guidance | Authorization Application Process | wastewater | You can apply for an authorization through the online reporting system. | high | |
| #Q010 | administrative | reporting | recommended | Education and Outreach Programs | drinking water | Water utilities should also have education and outreach programs to make consumers aware of how water quality can deteriorate within residential and building plumbing systems. | high | |
| #Q011 | monitoring | operational | recommended | Multi-parametric Performance Assessment | drinking water | water utilities and building owners/managers should have appropriate risk management strategies that utilize multiple parameters to assess the performance of drinking water treatment and/or distribution operations. | high | |
| #Q012 | operational | treatment | recommended | Subsurface Source Assessment Components | drinking water | Assessments for subsurface sources should include, at a minimum, a hydrogeological assessment, an evaluation of well integrity and a survey of activities and physical features in the area (Health Canada 2019b, 2019c). | Minimum requirements for subsurface source assessments | high |
| #Q013 | treatment | operational | recommended | Biological Stability of Treated Water | drinking water | Water utilities should therefore aim to produce biologically stable water to minimize the potential for problems to occur in distribution and premise plumbing systems (see Sections A.3.3 and A.3.4) (Health Canada, 2022). | high | |
| #Q014 | treatment | operational | recommended | Secondary Disinfection Application | drinking water | monochloramine is recommended only for secondary disinfection and residual maintenance in the distribution system (Health Canada, 2019b). | Applicable for secondary disinfection only | high |
| #Q015 | monitoring | operational | recommended | Multi-parametric Monitoring Programs for Distribution | drinking water | Comprehensive, multi-parametric monitoring programs (e.g., disinfectant residual paired with temperature and biofilm formation rate) are recommended to confirm system-specific requirements (Health Canada, 2022). | high | |
| #Q016 | administrative | reporting | recommended | Building Owner Jurisdictional Verification | drinking water | building owners/managers should contact the responsible authority in the affected jurisdiction to confirm if specific requirements will apply to their system (e.g., cooling tower registry). | Applicable to large building water systems | high |
| #Q017 | administrative | operational | recommended | Climate Change Risk Integration | drinking water | water utilities and building owners/managers should integrate the risks associated with climate change into their management strategies to maximize the reliability, robustness and resilience of their water systems. | high | |
| #Q018 | design | treatment | recommended | Certified Residential Treatment Devices | drinking water | Health Canada recommends that consumers use devices certified by an accredited certification body as meeting the appropriate NSF International (NSF)/American National Standards Institute (ANSI) drinking water treatment unit standards (NSF/ANSI, 2018, 2019, 2020). | Applicable to residential-scale systems and private wells | high |
| #Q019 | operational | health | recommended | Household Hot Water Temperature Maintenance | drinking water | homeowners can minimize their risk of exposure to opportunistic waterborne pathogens by maintaining the temperature of their hot water tank at a minimum of 60°C (WHO, 2011; Falkinham et al., 2015a, 2015b). | For control of Legionella and Pseudomonas aeruginosa in household plumbing | high |
| #Q020 | monitoring | operational | recommended | Source Nutrient Characterization | drinking water | surface and subsurface sources should be characterized with regard to organic and inorganic nutrient concentrations (Cantor, 2017). | During source water assessments | high |
| #Q021 | treatment | treatment | recommended | Treatment Performance Optimization | drinking water | optimize treatment performance for turbidity and natural organic matter removal | Drinking water treatment plant operations | high |
| #Q022 | operational | operational | recommended | Disinfectant Residual Maintenance | drinking water | maintain an effective disinfectant residual and take preventive/corrective actions when low disinfectant residuals occur, particularly during warm water temperature conditions when biofilm growth accelerates | Distribution system operation | high |
| #Q023 | operational | health | recommended | Building Temperature Control | other | keeping temperatures of cold and hot water systems outside of the ideal range for microorganism growth (e.g., cold water less than 20°C, hot water tank temperature greater than 60°C; hot water lines at distal points ideally greater than 55°C) | Premise plumbing management | high |
| #Q024 | operational | health | recommended | Safe Nasal Rinse Practice | drinking water | individuals should ensure that they conduct nasal rinses using water that has been boiled and cooled, or distilled water. | To prevent Naegleria fowleri infection | high |
| #Q025 | treatment | treatment | recommended | Primary Disinfection Technology Application | drinking water | properly apply primary disinfection technologies to meet appropriate CT (disinfectant concentration in mg/L × time in minutes) requirements when using chemical oxidants (i.e., free chlorine, ozone, chlorine dioxide) or IT (intensity measured in mW/cm2 or W/m 2× time measured in seconds resulting in a computed fluence in mJ/cm2) requirements when using ultraviolet (UV) disinfection | When using chemical oxidants or UV disinfection | high |
| #Q026 | administrative | operational | recommended | Operator Training Requirement | drinking water | provide operator training to assure the effectiveness of the water safety plan at all times. | Drinking water treatment plant operations | high |
| #Q027 | operational | treatment | recommended | Distribution System Cleaning and Maintenance | drinking water | keep the distribution system clean by removing biofilm, loose deposits and sediment from watermains and storage facilities (e.g., use of appropriate flushing and cleaning techniques) | Key distribution system operational and maintenance practices | high |
| #Q028 | monitoring | health | recommended | Private Well Inspection and Testing | drinking water | For residential-scale systems and private wells, regular physical inspection to identify deficiencies and testing of the water system (e.g., for E. coli and total coliforms) to confirm the microbiological quality of the water are important. | Applicable to residential-scale systems and private wells | high |
| #Q029 | operational | health | recommended | Contact Lens Safety Guidance | drinking water, recreational water | Individuals in the home who wear contact lenses should also follow guidance from their eye care providers on proper lens handling, cleaning and wear | To prevent Acanthamoeba keratitis | high |
| #Q030 | administrative | operational | recommended | Building Water Management Plans | other | Building water management plans are the recommended best practice for building owners/managers. | Applicable to building owners and managers | high |
| #Q031 | treatment | treatment | recommended | Treated Water Nutrient Minimization | drinking water | minimize nutrient concentrations in treated water and have a good understanding of their concentrations in the distribution system | Drinking water treatment plant operations | high |
| #Q032 | treatment | treatment | recommended | Scaling and Corrosion Control Optimization | drinking water | optimize treatment to minimize the amount of scaling and/or corrosion in the distribution system | Drinking water treatment plant operations | high |
| #Q033 | design | treatment | recommended | Distribution System Material Selection | drinking water | use proper construction materials | Distribution system operational and maintenance practices | high |
| #Q034 | operational | operational | recommended | Water Age and Temperature Management | drinking water | manage water age and the effects of temperature | Distribution system operational and maintenance practices | high |
| #Q035 | operational | operational | recommended | Contaminant Entry Prevention | drinking water | minimize the potential for contaminant entry from external sources (e.g., maintain positive pressure, implement cross-connection/backflow control programs, practice strict hygiene during mains constructions and repairs) | Distribution system operational and maintenance practices | high |
| #Q036 | design | treatment | recommended | Plumbing System Nutrient Limitation | other | limiting nutrient levels through an emphasis on system design and materials | Premise plumbing control strategies | high |
| #Q037 | operational | health | recommended | Aerosol Formation Reduction | other | reducing the formation and transmission of contaminated aerosols from system components such as cooling towers, showers, faucets, hot tubs and humidifiers | Premise plumbing control strategies | high |
| #Q038 | monitoring | operational | recommended | Treatment Plant Performance Testing | drinking water | conduct performance testing using multiple parameters (e.g., disinfectant residual, microbiological indicators, pH, turbidity) | Drinking water treatment plant operations | high |
| #Q039 | monitoring | operational | recommended | Distribution System Performance Testing | drinking water | conduct performance testing using multiple parameters (e.g., disinfectant residual, microbiological indicators, biological stability indicators, pH, pressure, temperature, turbidity) | Key distribution system operational and maintenance practices | high |
| #Q040 | operational | health | recommended | Source Water Assessment Risk Factors | drinking water | It is important that risks from both land-based and aerosol-generating activities (e.g., spray irrigation, pressure washers) be considered in the source water assessment. | During source water assessments | high |
| #Q041 | operational | health | recommended | Plumbing System Stagnation Control | other | minimizing areas of low flow/stagnation | Premise plumbing control strategies | high |
| #Q042 | design | operational | recommended | Mixing Valve Placement and Maintenance | other | Mixing valves should be positioned as close as possible to the point of use and provide access for maintenance and cleaning | Premise plumbing system design | high |
| #Q043 | design | unknown | recommended | Plumbing Outlet Temperature Safety Cap | other | the NPC specifies that water valves supplying showerheads and bathtubs should be capable of maintaining a water outlet temperature that does not exceed 49°C in order to reduce the risk of scalding | Applies to showerheads and bathtubs | high |
| #Q044 | monitoring | operational | recommended | Risk-Informed Environmental Monitoring | other | environmental monitoring at individual facilities should be informed by a site-specific risk assessment as part of a Water Management Plan | Applicable to building water systems | high |
| #Q045 | operational | health | recommended | Electric Storage-Type Water Heater Temperature Pre-set | other | the NPC further specifies that electric storage-type water heaters should be pre-set to a temperature of 60°C as a result of the temperature stratification that can occur with this type of heater. | Specific to electric storage-type heaters to prevent Legionella growth | high |
| #Q046 | monitoring | operational | guidance | Building Water Monitoring Program Design | other | In general, monitoring programs consist of routine monitoring of general microbiological quality, as an indication of system control, in conjunction with testing for Legionella at regular time intervals | Part of a site-specific Water Management Plan for buildings | high |
| #Q047 | operational | health | recommended | Disinfectant Residual for Naegleria fowleri Control | drinking water | Maintaining a minimum free chlorine residual of 0.5 mg/L throughout the distribution system is recommended for the control of N. fowleri in vulnerable drinking water systems | Applicable to systems vulnerable to N. fowleri (temperatures > 25°C) | high |
| #Q048 | administrative | operational | mandatory | Building Water Quality Management Responsibility | other | Building owners/managers are responsible for managing water quality within their buildings | high | |
| #Q049 | prohibition | treatment | recommended | Monochloramine Use Prohibition for Primary Disinfection | drinking water | Monochloramine should not be used for primary disinfection due to its low oxidation potential | high |
| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Limit Type | Limit Value | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|---|---|
| #P001 | operational | operational | mandatory | average daily volume | wastewater | requirement | >= 100 m3 | The Regulations apply to wastewater systems: that collect an average daily volume of 100 m3 or more of influent and deposit wastewater effluent to water frequented by fish | deposit wastewater effluent to water frequented by fish or to a place that could reach these waters | high |
| #P002 | operational | operational | mandatory | minimum disinfectant residual concentration | drinking water | requirement | > 0.2 mg/L | Maintaining an effective disinfectant residual is essential to manage risks in the distribution system. | required to control microbiological (re)growth in the distribution system | high |
| #P003 | operational | operational | recommended | free chlorine residual for biofilm control | drinking water | requirement | 1.0 mg/L | Required for controlling biofilm formation in systems that chlorinate. | systems that regularly remove biofilms and loose deposits may require lower concentrations | high |
| #P004 | operational | operational | recommended | total chlorine residual for biofilm control | drinking water | requirement | 1.8 mg/L | Required for controlling biofilm formation in systems that chloraminate. | systems that regularly remove biofilms and loose deposits may require lower concentrations | high |
| #P005 | physical | operational | recommended | cold water plumbing temperature | drinking water | treatment_goal | < 20 °C | Keeping temperatures outside of the ideal range for microorganism growth. | applies to premise plumbing systems | high |
| #P006 | physical | operational | mandatory | hot water tank temperature | drinking water | requirement | > 60 °C | Maintaining temperature outside growth range to limit opportunistic pathogens. | Specified in the National Plumbing Code; electric storage-type water heaters should be pre-set to this temperature | high |
| #P007 | physical | operational | recommended | hot water distal point temperature | drinking water | treatment_goal | > 55 °C | Ideally maintained at distal points to minimize Legionella colonization. | applies to building hot water lines | high |
| #P008 | physical | health | mandatory | maximum water outlet temperature at the tap | drinking water | requirement | <= 49 °C | NPC specifies maximum temperature to reduce the risk of scalding. | applies to water valves supplying showerheads and bathtubs | high |
| #P009 | microbiological | health | guideline | Legionella concentration action level | drinking water, recreational water | requirement | 50000 CFU/L | NASEM Committee recommendation for remedial action. | concentration warrants concern and triggers remedial activities; lower levels may be needed for hospitals | high |
| #P010 | operational | health | recommended | Naegleria fowleri control residual | drinking water | requirement | 0.5 mg/L | Maintaining free chlorine residual throughout the distribution system for control. | Recommended for vulnerable drinking water systems | high |
| #P011 | operational | operational | guideline | free chlorine residual target for healthcare facilities | drinking water | requirement | 0.3 - 0.5 mg/L | Guidance materials on Legionella control in plumbing systems for health-care facilities. | applies to health-care facilities | high |
| #P012 | operational | operational | guideline | monochloramine residual target for healthcare facilities | drinking water | requirement | 1.5 mg/L | Guidance materials on Legionella control in plumbing systems for health-care facilities. | applies to health-care facilities | high |
| #P013 | physical | treatment | recommended | thermal shock temperature | drinking water | requirement | 70 °C | Extreme remediation measure involving stringent thermal shock. | considered an extreme remediation measure | high |
| #P014 | operational | treatment | recommended | thermal shock duration | drinking water | requirement | 30 minutes | Duration for stringent thermal shock at 70°C. | considered an extreme remediation measure | high |
| #P015 | microbiological | health | guideline | EU Legionella action level | drinking water | requirement | 1000 CFU/L | 2020 European Union Drinking Water Directive action level for premise plumbing systems. | applies to premise plumbing systems | high |
| #P016 | operational | operational | recommended | best practice chloramine residual for Naegleria fowleri control | drinking water | requirement | > 1.5 mg/L | Health Canada suggested best practice for chloramine residual throughout the distribution system. | sufficient for N. fowleri control | high |
| #P017 | operational | treatment | recommended | 4 log inactivation CT for biofilm-associated Legionella pneumophila (free chlorine) | drinking water | treatment_goal | 63.67 mg·min/L | CT values for inactivation of biofilm-associated Legionella pneumophila strain Philadelphia-1 serogroup 1. | pH = 8, temperature = 21 °C | high |
| #P018 | operational | treatment | recommended | 4 log inactivation CT for biofilm-associated Legionella pneumophila (monochloramine) | drinking water | treatment_goal | 108.44 mg·min/L | CT values for inactivation of biofilm-associated Legionella pneumophila strain Philadelphia-1 serogroup 1. | pH = 8, temperature = 21 °C | high |
| #P019 | microbiological | operational | guideline | Aeromonas monitoring target (Netherlands) | drinking water | OG | < 1000 CFU/100 mL | Dutch drinking water legislation monitoring requirement for Aeromonas as an operational parameter. | Based on treatment achievability, not public health significance | high |
| #P020 | microbiological | treatment | recommended | Acanthamoeba species cysts free chlorine CT | drinking water | treatment_goal | 1300 mg·min/L | CT values required for 2 log reduction using free chlorine. | 5-25°C, pH 6-9 | high |
| #P021 | microbiological | treatment | recommended | Naegleria fowleri cysts free chlorine CT (4 log) | drinking water | treatment_goal | 31 - 37 mg·min/L | CT values for achieving a 4 log reduction in Naegleria fowleri cysts. | 5-25°C, pH 6-9 | high |
| #P022 | microbiological | treatment | recommended | Adenovirus UV dose requirement | drinking water | treatment_goal | 51 - 261 mJ/cm2 | UV dose requirements for 4 log reduction of Adenovirus. | high | |
| #P023 | operational | treatment | recommended | 2 log inactivation CT for biofilm-associated Legionella pneumophila (free chlorine) | drinking water | treatment_goal | 8.86 mg·min/L | CT values for inactivation of biofilm-associated Legionella pneumophila strain Philadelphia-1 serogroup 1. | pH = 8, temperature = 21 °C | high |
| #P024 | operational | treatment | recommended | 2 log inactivation CT for biofilm-associated Legionella pneumophila (monochloramine) | drinking water | treatment_goal | 17.16 mg·min/L | CT values for inactivation of biofilm-associated Legionella pneumophila strain Philadelphia-1 serogroup 1. | pH = 8, temperature = 21 °C | high |
| #P025 | microbiological | treatment | recommended | Planktonic Legionella pneumophila free chlorine CT (3-4 log) | drinking water | treatment_goal | 0.1 - 0.3 mg·min/L | CT values for Achieving a 3 to 4 log removal of planktonic Legionella. | 5-25°C, pH 6-9 | high |
| #P026 | microbiological | treatment | recommended | Mycobacterium avium free chlorine CT (3 log) | drinking water | treatment_goal | 51 - 1552 mg·min/L | CT values for achieving a 3 log reduction in Mycobacterium avium. | 5-25°C, pH 6-9 | high |
| #P027 | microbiological | treatment | recommended | 3 log inactivation CT for biofilm-associated Legionella pneumophila (free chlorine) | drinking water | treatment_goal | 36.11 mg·min/L | CT values for inactivation of biofilm-associated Legionella pneumophila strain Philadelphia-1 serogroup 1. | pH = 8, temperature = 21 °C | high |
| #P028 | microbiological | treatment | recommended | 3 log inactivation CT for biofilm-associated Legionella pneumophila (monochloramine) | drinking water | treatment_goal | 62.80 mg·min/L | CT values for inactivation of biofilm-associated Legionella pneumophila strain Philadelphia-1 serogroup 1. | pH = 8, temperature = 21 °C | high |
| #P029 | microbiological | treatment | recommended | Enteric Bacteria Free Chlorine CT (2-log) | drinking water | treatment_goal | 0.034 - 5.1 mg·min/L | Relative CT values for E. coli, Campylobacter, Helicobacter, Salmonella, and Yersinia. | 5-25°C, pH 6-9 | high |
| #P030 | microbiological | treatment | recommended | Enteric Viruses Free Chlorine CT (2-log) | drinking water | treatment_goal | 0.01 - 12 mg·min/L | Relative CT values for various enteric viruses for 2-log inactivation. | 5-25°C, pH 6-9 | high |
| #P031 | microbiological | treatment | recommended | Naegleria fowleri cysts UV Dose Requirement (4-log) | drinking water | treatment_goal | 121 mJ/cm2 | UV dose requirements for 4 log reduction. | high | |
| #P032 | microbiological | treatment | recommended | Acanthamoeba spp. cysts UV Dose Requirement (4-log) | drinking water | treatment_goal | 167 mJ/cm2 | UV dose requirements for 4 log reduction. | high | |
| #P033 | microbiological | treatment | recommended | Mycobacterium avium UV Dose Requirement (4-log) | drinking water | treatment_goal | 12.3 - 64 mJ/cm2 | UV dose requirements for 4 log reduction of MAC. | Some specific strains may require higher doses (96-192 mJ/cm2) | high |
| #P034 | microbiological | treatment | recommended | Legionella pneumophila UV Dose Requirement (4-log) | drinking water | treatment_goal | 11 - 30 mJ/cm2 | UV dose requirements for 4 log reduction of L. pneumophila. | high | |
| #P035 | microbiological | treatment | recommended | Enteric Bacteria UV Dose Requirement (4-log) | drinking water | treatment_goal | 5 - 51 mJ/cm2 | UV dose requirements for E. coli, Campylobacter, Helicobacter, Salmonella, and Yersinia. | high | |
| #P036 | microbiological | treatment | recommended | Enteric Viruses UV Dose Requirement (4-log) | drinking water | treatment_goal | 16.4 - 61 mJ/cm2 | Includes Hepatitis A, Coxsackievirus, Poliovirus, and Rotavirus. | Excludes Adenovirus which is higher | high |
| #P037 | microbiological | treatment | recommended | Aeromonas species free chlorine CT (2-log) | drinking water | treatment_goal | 0.2 - 1.4 mg·min/L | CT values required for achieving a 2 log reduction in numbers using free chlorine. | 5-25°C, pH 6-9 | high |
| #P038 | microbiological | treatment | recommended | Pseudomonas species free chlorine CT (2-log) | drinking water | treatment_goal | 0.0073 - 4.3 mg·min/L | CT values required for achieving a 2 log reduction in numbers using free chlorine. | 5-25°C, pH 6-9 | high |
| #P039 | microbiological | treatment | recommended | Giardia cysts free chlorine CT (2-log) | drinking water | treatment_goal | 25 - 99 mg·min/L | CT values required for achieving a 2 log reduction in numbers using free chlorine. | 5-25°C, pH 6-9 | high |
| #P040 | operational | treatment | mandatory | Design CT target for 4-log virus inactivation | drinking water | requirement | 12 - 15 mg·min/L | Typical design CTs that are required to achieve 4 log virus inactivation. | Chemical oxidation using free chlorine | high |
| #P041 | operational | treatment | mandatory | Design CT target for 0.5-log Giardia inactivation | drinking water | requirement | 35 - 65 mg·min/L | Typical design CTs that are required to achieve 0.5 log Giardia inactivation. | Chemical oxidation using free chlorine | high |
| #P042 | microbiological | treatment | recommended | Cryptosporidium oocysts UV dose requirement (4-log) | drinking water | treatment_goal | 22 mJ/cm2 | UV dose requirements for achieving a 4 log reduction. | high | |
| #P043 | microbiological | treatment | recommended | Giardia cysts UV dose requirement (4-log) | drinking water | treatment_goal | 22 mJ/cm2 | UV dose requirements for achieving a 4 log reduction. | high | |
| #P044 | microbiological | treatment | recommended | Aeromonas species UV dose requirement (2-log) | drinking water | treatment_goal | 2.5 - 8 mJ/cm2 | UV dose requirements for achieving a 2 log reduction. | high | |
| #P045 | microbiological | treatment | recommended | Pseudomonas species UV dose requirement (4-log) | drinking water | treatment_goal | 3.1 mJ/cm2 | UV dose requirements for achieving a 4 log reduction. | high | |
| #P046 | microbiological | treatment | recommended | Specific strains of Mycobacterium species UV dose requirement (2-5 log) | drinking water | treatment_goal | 96 - 192 mJ/cm2 | UV dose requirements for 2 to 5 log reduction for some Mycobacterium strains. | Species-specific resistance vary significantly | high |
| #P047 | operational | operational | recommended | free chlorine residual for Pseudomonas control | drinking water | treatment_goal | > 0.3 mg/L | Laboratory and pilot-scale studies suggest this concentration is useful for control of Pseudomonas spp. in bulk water. | bulk water in distribution systems | high |
| #P048 | physical | health | guideline | cold water Legionella colonization risk temperature | drinking water | requirement | > 25 °C | Cold water supplies held at temperatures above this threshold are associated with an increased risk of Legionella colonization. | applies to cold water supply systems | high |
| #P049 | operational | operational | recommended | minimum flushing frequency for low flow pipes | drinking water | requirement | >= 1 flush/week | Guidance documents for building systems recommend minimum flushing to mitigate Legionella risks in stagnant or low-flow areas. | Applies to low flow pipe runs, dead ends/dead legs and infrequently used fittings or outlets. | high |
| Req ID | Category | Name | Context | Confidence |
|---|---|---|---|---|
| #D001 | Subacute cases of diarrhea | Subacute cases of diarrhea are defined as those lasting from two weeks to two months, whereas chronic cases persist for longer periods | high | |
| #D002 | AIDS | acquired immunodeficiency syndrome | high | |
| #D003 | AK | Acanthamoeba keratitis | high | |
| #D004 | ANSI | American National Standards Institute | high | |
| #D005 | ASHRAE | American Society of Heating, Refrigerating, and Air-Conditioning Engineers | high | |
| #D006 | CDC | Centers for Disease Control and Prevention | high | |
| #D007 | CFU | colony forming units | high | |
| #D008 | CT | concentration (C) × time (T) | high | |
| #D009 | DAEC | diffuse adherent Escherichia coli | high | |
| #D010 | DNA | deoxyribonucleic acid | high | |
| #D011 | EAEC | enteroaggregative Escherichia coli | high | |
| #D012 | E. coli | Escherichia coli | high | |
| #D013 | EHEC | enterohaemorrhagic Escherichia coli | high | |
| #D014 | EIEC | enteroinvasive Escherichia coli | high | |
| #D015 | EPEC | enteropathogenic Escherichia coli | high | |
| #D016 | ESBL | extended spectrum β-lactamase | high | |
| #D017 | ETEC | enterotoxigenic Escherichia coli | high | |
| #D018 | EU | European Union | high | |
| #D019 | GAC | granulated activated carbon | high | |
| #D020 | GAE | granulomatous amoebic encephalitis | high | |
| #D021 | HIV | human immunodeficiency virus | high | |
| #D022 | HPC | heterotrophic plate count | high | |
| #D023 | HUS | hemolytic uremic syndrome | high | |
| #D024 | HVAC | heating, ventilation and air conditioning | high | |
| #D025 | IARC | International Agency for Research on Cancer | high | |
| #D026 | ISO | International Organization for Standardization | high | |
| #D027 | NASEM | National Academies of Sciences, Engineering and Medicine | high | |
| #D028 | NPC | National Plumbing Code (Canada) | high | |
| #D029 | NSF | NSF International | high | |
| #D030 | NTM | non-tuberculous mycobacteria | high | |
| #D031 | PAM | primary amebic meningoencephalitis | high | |
| #D032 | PCR | polymerase chain reaction | high | |
| #D033 | PHAC | Public Health Agency of Canada | high | |
| #D034 | POE | point-of-entry | high | |
| #D035 | POU | point-of-use | high | |
| #D036 | QMRA | quantitative microbial risk assessment | high | |
| #D037 | SCC | Standards Council of Canada | high | |
| #D038 | spp. | species | high | |
| #D039 | US EPA | United States Environmental Protection Agency | high | |
| #D040 | U.S. | United States | high | |
| #D041 | UV | ultraviolet | high | |
| #D042 | VBNC | viable but non-culturable | high | |
| #D043 | VTEC | verotoxin-producing Escherichia coli | high | |
| #D044 | WHO | World Health Organization | high | |
| #D045 | Groundwater | the water that fills the spaces between layers of soil, sand and rock in the ground | high | |
| #D046 | Aquifers | Areas that contain enough groundwater | high |