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Document ID ca-owser-2024-10-11 Title Overview of the Wastewater Systems Effluent Regulations URL unknown Jurisdiction /ca Subdomain(s) none Language Status completed Analyzed at 2026-05-13 15:05:46.890682+00:00 Relevance inventory_targeted_fetch

9 Qualitative 35 Quantitative 26 Definitions

Q Qualitative Requirements (9)

Req ID	Category	Intent	Legal Status	Name	Subdomain(s)	Context	Conditions	Confidence
#Q001	prohibition	health	mandatory	Acute Lethality Prohibition	wastewater	The effluent also cannot be acutely lethal.	Applies 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 or to a place that could reach these waters.	high
#Q002	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.	Applies 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 or to a place that could reach these waters.	high
#Q003	administrative	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.		high
#Q004	reporting	reporting	mandatory	Identification Report Updates	wastewater	Any changes or new information on the wastewater system must be submitted within 45 days of the change.		high
#Q005	reporting	reporting	mandatory	Regular Monitoring Reports Submission	wastewater	Owners and operators must submit monitoring reports regularly.		high
#Q006	reporting	reporting	mandatory	Quarterly Monitoring Reports Deadlines	wastewater	For owners or operators of wastewater systems that report four times a year, the deadlines are: Quarter 1 (January 1 to March 31) - May 15 Quarter 2 (April 1 to June 30) - August 14 Quarter 3 (July 1 to September 30) - November 14 Quarter 4 (October 1 to December 31) - February 14	For owners or operators of wastewater systems that report four times a year	high
#Q007	reporting	reporting	mandatory	Annual Monitoring Report Deadline	wastewater	For wastewater systems that report once a year, the deadline is: Annual (January 1 to December 31) - February 14	For wastewater systems that report once a year	high
#Q008	reporting	reporting	mandatory	Combined Sewer Overflow Deposit Report Content	wastewater	Owners or operators of wastewater systems with at least one combined sewer overflow point are required to report for each month where a deposit occured: the number of days that effluent was released via each overflow point, the volume of effluent deposited from each overflow point	For wastewater systems with at least one combined sewer overflow point, for each month where a deposit occurred	high
#Q009	reporting	reporting	mandatory	Combined Sewer Overflow Annual Reporting Deadline	wastewater	Owners and operators must submit the combined sewer overflow report once per year by February 15.	For owners and operators of wastewater systems with at least one combined sewer overflow point	high

P Quantitative Requirements (35)

Req ID	Category	Intent	Legal Status	Name	Subdomain(s)	Limit Type	Limit Value	Context	Conditions	Confidence
#P001	operational	operational	mandatory	average daily volume of influent	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 or to a place that could reach these waters.		high
#P002	operational	reporting	mandatory	Identification report submission deadline	wastewater	requirement	<= 45 days	Owners or operators of wastewater systems must submit an identification report within 45 days after their system comes into operation.	After system comes into operation	high
#P003	operational	reporting	mandatory	Information change reporting deadline	wastewater	requirement	<= 45 days	Any changes or new information on the wastewater system must be submitted within 45 days of the change.		high
#P004	operational	operational	mandatory	Northern latitude application threshold	wastewater	requirement	54 parallel (degrees north)	The Regulations do not apply in... north of the 54th parallel in Québec or Newfoundland and Labrador.	Applies to Québec or Newfoundland and Labrador	high
#P005	operational	reporting	mandatory	Quarterly reporting frequency	wastewater	requirement	4 times per year	Wastewater systems report either once a year or four times a year. System type and size determines how often to report.	For owners or operators of wastewater systems that report four times a year	high
#P006	operational	reporting	mandatory	Annual reporting frequency	wastewater	requirement	1 time per year	Wastewater systems report either once a year or four times a year.	For wastewater systems that report once a year	high
#P007	operational	reporting	mandatory	Quarterly report deadline - Quarter 1	wastewater	requirement	May 15 date	For owners or operators of wastewater systems that report four times a year, the deadlines are: Quarter 1 (January 1 to March 31) - May 15	Quarter 1 reporting	high
#P008	operational	reporting	mandatory	Quarterly report deadline - Quarter 2	wastewater	requirement	August 14 date	For owners or operators of wastewater systems that report four times a year, the deadlines are: Quarter 2 (April 1 to June 30) - August 14	Quarter 2 reporting	high
#P009	operational	reporting	mandatory	Quarterly report deadline - Quarter 3	wastewater	requirement	November 14 date	For owners or operators of wastewater systems that report four times a year, the deadlines are: Quarter 3 (July 1 to September 30) - November 14	Quarter 3 reporting	high
#P010	operational	reporting	mandatory	Quarterly report deadline - Quarter 4	wastewater	requirement	February 14 date	For owners or operators of wastewater systems that report four times a year, the deadlines are: Quarter 4 (October 1 to December 31) - February 14	Quarter 4 reporting	high
#P011	operational	reporting	mandatory	Annual report deadline	wastewater	requirement	February 14 date	For wastewater systems that report once a year, the deadline is: Annual (January 1 to December 31) - February 14	Annual reporting	high
#P012	operational	reporting	mandatory	Combined sewer overflow report deadline	wastewater	requirement	February 15 date	Owners and operators must submit the combined sewer overflow report once per year by February 15.	Annual overflow reporting	high
#P013	operational	reporting	mandatory	Combined sewer overflow reporting threshold	wastewater	requirement	>= 1 overflow point(s)	Owners or operators of wastewater systems with at least one combined sewer overflow point are required to report for each month where a deposit occurred.	Wastewater systems with at least one combined sewer overflow point	high
#P014	operational	reporting	mandatory	Emergency notification service duration	other	requirement	24 hours	The Regulations prescribe the names and telephone numbers of the organizations providing 24-hour emergency notification service.		high
#P015	operational	reporting	mandatory	Public comment period for Deposit Regulations amendments	other	requirement	60 days	Proposed amendments are targeted for publication in the Canada Gazette, Part I, in spring 2025 for a 60-day public comment period.	Following publication in Canada Gazette, Part I	high
#P016	operational	reporting	mandatory	Public comment period for Coal Mining Effluent Regulations	wastewater	requirement	60 days	There will be a 60-day public comment period following publication.	Following publication in Canada Gazette, Part I	high
#P017	operational	reporting	mandatory	Public comment period for MDMER Northwest Territories Order	wastewater	requirement	60 days	A 60-day public comment period was held following publication.	Following publication in Canada Gazette, Part I	high
#P018	operational	operational	mandatory	Oil sands mining sector application scope	wastewater	requirement	8 mines	The regulations would apply to the oil sands mining sector, which currently includes eight mines in Alberta.	Current sector composition in Alberta	high
#P019	chemical	operational	guideline	Minimum disinfectant residual concentration	drinking water	requirement	> 0.2 mg/L	There is increasing recognition that a minimum disinfectant residual concentration greater than 0.2 mg/L is required to control microbiological (re)growth in the distribution system.	In the distribution system	high
#P020	chemical	operational	guideline	Free chlorine residual for biofilm control	drinking water	requirement	1.0 mg/L	Studies indicate that disinfectant residual concentrations in the order of 1.0 mg/L free chlorine (for systems that chlorinate) are required for controlling biofilm formation.	For systems that chlorinate	high
#P021	chemical	operational	guideline	Total chlorine residual for biofilm control	drinking water	requirement	1.8 mg/L	Studies indicate that disinfectant residual concentrations in the order of 1.8 mg/L total chlorine (for systems that chloraminate) are required for controlling biofilm formation.	For systems that chloraminate	high
#P022	physical	operational	guideline	Cold water system temperature	drinking water	requirement	< 20 °C	Important elements of control strategies for plumbing systems include: keeping temperatures of cold... water systems outside of the ideal range for microorganism growth (e.g., cold water less than 20°C).	Premise plumbing systems	high
#P023	physical	operational	guideline	Hot water tank temperature	drinking water	requirement	> 60 °C	Important elements of control strategies for plumbing systems include... hot water tank temperature greater than 60°C.	Premise plumbing systems	high
#P024	physical	operational	guideline	Hot water distal point temperature	drinking water	requirement	> 55 °C	Important elements of control strategies for plumbing systems include... hot water lines at distal points ideally greater than 55°C.	Premise plumbing systems	high
#P025	physical	operational	mandatory	Maximum water outlet temperature	drinking water	requirement	<= 49 °C	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.	At showerheads and bathtubs	high
#P026	microbiological	operational	guideline	Legionella remedial action level	drinking water	requirement	50000 CFU/L	A comprehensive review... concluded that a Legionella concentration of 50,000 CFU/L warrants concern and should be considered an action level to trigger remedial activities.	Various water systems including buildings	high
#P027	chemical	operational	guideline	Minimum free chlorine for Naegleria fowleri control	drinking water	requirement	0.5 mg/L	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.	Vulnerable drinking water systems	high
#P028	chemical	operational	guideline	Best practice chloramine residual for N. fowleri	drinking water	requirement	> 1.5 mg/L	The suggested best practice for a chloramine residual of greater than 1.5 mg/L throughout the distribution system (Health Canada, 2020b) is sufficient for N. fowleri control.	Throughout the distribution system	high
#P029	chemical	operational	guideline	Pseudomonas free chlorine residual	drinking water	requirement	> 0.3 mg/L	Laboratory-scale and pilot-scale studies suggest that maintaining free chlorine residuals above 0.3 mg/L is useful for control of Pseudomonas spp. in bulk water.	Bulk water control	high
#P030	chemical	operational	guideline	Health-care facility free chlorine target	drinking water	requirement	0.3 to 0.5 mg/L	Guidance materials on Legionella control in plumbing systems for health-care facilities have recommended minimum disinfectant residual targets of 0.3 mg/L to 0.5 mg/L for free chlorine.	Health-care facility plumbing systems	high
#P031	chemical	operational	guideline	Health-care facility monochloramine target	drinking water	requirement	1.5 mg/L	Guidance materials on Legionella control in plumbing systems for health-care facilities have recommended minimum disinfectant residual targets of... 1.5 mg/L for monochloramine.	Health-care facility plumbing systems	high
#P032	physical	treatment	guideline	Thermal shock remediation temperature	drinking water	requirement	70 °C	Temporarily elevating the water temperature, or heat shock (e.g., a stringent thermal shock of 70°C for 30 minutes), has been utilized as a control measure in building systems.	Remediation measure for building systems	high
#P033	physical	treatment	guideline	Thermal shock remediation duration	drinking water	requirement	30 minutes	Temporarily elevating the water temperature, or heat shock (e.g., a stringent thermal shock of 70°C for 30 minutes), has been utilized as a control measure.	Applied at 70°C	high
#P034	chemical	treatment	guideline	Biofilm-associated L. pneumophila 2-log inactivation CT (Free Chlorine)	drinking water	requirement	8.86 mg.min/L	CT values for inactivation of biofilm-associated Legionella pneumophila strain Philadelphia-1 serogroup 1 using free chlorine (pH = 8, temperature = 21 °C).	pH 8, temperature 21 °C, PVC material	high
#P035	chemical	treatment	guideline	Biofilm-associated L. pneumophila 2-log inactivation CT (Monochloramine)	drinking water	requirement	17.16 mg.min/L	CT values for inactivation of biofilm-associated Legionella pneumophila strain Philadelphia-1 serogroup 1 using monochloramine (pH = 8, temperature = 21 °C).	pH 8, temperature 21 °C, PVC material	high

D Definitions (26)

Req ID	Name	Context	Confidence
#D001	the Regulations	Wastewater Systems Effluent Regulations	high
#D002	Transitional authorizations	extensions to allow facilities to upgrade their systems	medium
#D003	Temporary bypass authorizations	authorizations to exceed the standards of the regulations for maintenance and construction activities	medium
#D004	Temporary authorization to deposit un-ionized ammonia	for systems complying with the effluent quality standards but have issues with ammonia	medium
#D005	ERRIS	Effluent Regulatory Reporting Information System	high
#D006	combined sewers	sewage and stormwater are often carried together in combined sewers	high
#D007	Quarterly reporters	owners or operators of wastewater systems that report four times a year	high
#D008	Annual reporters	wastewater systems that report once a year	high
#D009	Recreational waters	any natural fresh, marine or estuarine bodies of water that are used for recreational purposes; this includes lakes, rivers, and human-made constructions (e.g., quarries, artificial lakes) that are filled with untreated natural waters.	high
#D010	primary contact activities	activities that could present a human health risk through intentional or incidental immersion and ingestion (e.g., swimming, bathing, wading, windsurfing and waterskiing)	high
#D011	secondary contact activities	activities that could present a human health risk through intentional or incidental immersion and ingestion (e.g., canoeing, boating or fishing)	high
#D012	Cyanobacteria	bacteria that share features with algae, such as oxygen-producing photosynthesis using their blue-green photosynthetic pigments; hence, historically they have been termed blue-green algae	high
#D013	Intracellular cyanotoxins	produced by a variety of cyanobacteria (although not all cyanobacteria) and are associated with various harmful effects on humans. These toxins are usually contained within intact cyanobacteria cells and released when cells are lysed, although some intracellular toxins can be released naturally without cell lysis (e.g., cylindrospermopsin).	high
#D014	Microcystins	hepatotoxins that belong to the cyclic peptide group of toxins. They have seven amino acids joined to form a circular peptide that contains a unique amino acid side chain (known as the Adda group) and two variable amino acids at the end of the molecule, which determine the identity of each microcystin variant.	high
#D015	Anatoxins	neurotoxins that interfere with the activity of the nerve transmitter acetylcholine. This, in turn, affects the functioning of the nervous system by disrupting communication between nerves and muscle cells.	high
#D016	Cylindrospermopsins	primarily categorized as a hepatotoxin, although they have also been shown to exert cytotoxicity in other organs such as the kidney, spleen, thymus, heart and gastrointestinal tract (cytotoxic properties).	high
#D017	Nodularins	hepatotoxins usually caused by strains of the brackish-water cyanobacterial genus Nodularia although additional species, such as cyanobacteria from the genus Nostoc, have been reported to be capable of producing the toxin.	high
#D018	Saxitoxins	group of toxins that include saxitoxin, neosaxitoxin, gonyautoxins, C-toxins, decarbamoylsaxitoxins and lyngbyatoxins. These toxins act by blocking sodium channels in nerves and muscle cells, preventing the transmission of electrical impulses.	high
#D019	Total cyanobacteria cell counts	a measure of planktonic cyanobacteria biomass that can be used to indicate that a bloom is developing.	high
#D020	Cyanobacteria biovolume	a measure of the planktonic cyanobacteria biomass in a water sample. It is obtained from cell counts by determining the average cell volume for each taxon or unit counted and then multiplying this value by the cell counts for the sample.	high
#D021	Chlorophyll a	a photosynthetic green pigment present in cyanobacteria and other phytoplankton.	high
#D022	HABs	hazardous algal blooms	high
#D023	HBV	health-based value	high
#D024	TDI	tolerable daily intake	high
#D025	TEQ	toxic equivalency	high
#D026	CESI	Canadian Environmental Sustainability Indicators	high