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Document ID ca-doppscdwec-2023-02-10 Title Draft objective for per- and polyfluoroalkyl substances in Canadian drinking water: Exposure considerations URL https://www.canada.ca/en/health-canada/programs/consultation-draft-objective-per-polyfluoroalkyl-substances-canadian-drinking-water/exposure-considerations.html Jurisdiction /ca Subdomain(s) Drinking water, Regulatory compliance, Monitoring and analysis Language en Status completed Analyzed at 2026-03-19 09:31:49.426650+00:00 Relevance Draft objective and consultation for PFAS limits in drinking water.

2 Qualitative 11 Quantitative 7 Definitions

Q Qualitative Requirements (2)

Req ID	Category	Intent	Legal Status	Name	Subdomain(s)	Context	Conditions	Confidence
#Q001	prohibition	health	mandatory	Prohibition of Legacy PFAS	other	In Canada, some of the legacy PFAS (that is, PFOA, PFOS and long-chain PFCAs, their salts and their precursors) have been prohibited from manufacture, use and import, with a limited number of exemptions.	with a limited number of exemptions	high
#Q002	monitoring	reporting	mandatory	Testing for PFOA and PFOS in Nova Scotia	drinking water	In Nova Scotia, as of 2019, municipalities have been required to test the raw and treated drinking water for the presence of PFOA and PFOS.	Applies to municipalities in Nova Scotia as of 2019	high

P Quantitative Requirements (11)

Req ID	Category	Intent	Legal Status	Name	Subdomain(s)	Limit Type	Limit Value	Context	Conditions	Confidence
#R001	chemical	reporting	mandatory	Method detection limit (MDL) for PFOA and PFOS	drinking water	requirement	20 ng/L	Municipalities required to test raw and treated drinking water for the presence of PFOA and PFOS	As of 2019	high
#R002	chemical	reporting	mandatory	Minimum reporting level (MRL) for PFOA	drinking water	requirement	20 ng/L	US EPA Third Unregulated Contaminant Monitoring Rule (UCMR3)	Monitoring between 2013 and 2015	high
#R003	chemical	reporting	mandatory	Minimum reporting level (MRL) for PFOS	drinking water	requirement	40 ng/L	US EPA Third Unregulated Contaminant Monitoring Rule (UCMR3)	Monitoring between 2013 and 2015	high
#R004	chemical	reporting	mandatory	Minimum reporting level (MRL) for PFBS	drinking water	requirement	90 ng/L	US EPA Third Unregulated Contaminant Monitoring Rule (UCMR3)	Monitoring between 2013 and 2015	high
#R005	chemical	reporting	guidance	Method detection limit (MDL) for PFOA and PFOS (Saskatchewan)	drinking water	requirement	2 ng/L	Saskatchewan Water Security Agency drinking water sampling	Treated drinking water samples from 7 communities in 2018–2019	high
#R006	chemical	reporting	guidance	Method detection limits (MDLs) range for 14 PFAS (Ontario)	drinking water	requirement	0.5 to 1 ng/L	Ontario Ministry of the Environment, Conservation and Parks drinking water system measurements	25 drinking water systems in Ontario between 2012 and 2016	high
#R007	chemical	reporting	guidance	Detection limit range for treated water (Quebec)	drinking water	requirement	0.3 to 5 ng/L	Quebec Ministère de l'Environnement et de la Lutte contre les changements climatiques (MELCC) sampling	41 drinking water treatment systems sampled between 2016 and 2021	high
#R008	chemical	reporting	mandatory	Minimum reporting levels (MRLs) range for 6 PFAS (US EPA)	drinking water	requirement	10 to 90 ng/L	US EPA Third Unregulated Contaminant Monitoring Rule (UCMR3)	Monitoring of 6 PFAS (PFHpA, PFOA, PFNA, PFBS, PFHxS and PFOS) between 2013 and 2015	high
#R009	chemical	reporting	guidance	Detection limit range for raw water (Quebec)	drinking water	requirement	0.5 to 5 ng/L	Quebec's Ministère de l'Environnement et de la Lutte contre les changements climatiques (MELCC) sampling of 41 systems	Raw water samples tested for 18 PFAS between 2016 and 2021	high
#R010	chemical	reporting	guidance	Detection limits range for national freshwater study	drinking water	requirement	0.4 to 1.6 ng/L	Study examining the presence of PFAS in freshwater at 29 sites across Canada	Sampling from 2013 to 2020 for 13 different PFAS	high
#R011	chemical	reporting	guidance	Limits of detection for Canadian tap water study	drinking water	requirement	0.01 to 0.08 ng/L	Study of drinking water sourced from 19 sites around Lake Ontario, the St. Lawrence River, and other Canadian lakes/rivers	Detection limits specified for tap water analysis	high

D Definitions (7)

Req ID	Category	Name	Context	Confidence
#D001		AFFFs	aqueous film-forming foams	high
#D002		MDL	method detection limit	high
#D003		MELCC	Ministère de l'Environnement et de la Lutte contre les changements climatiques	high
#D004		MRLs	minimum reporting levels	high
#D005		UCMR3	Third Unregulated Contaminant Monitoring Rule	high
#D006		PFAS	a family of thousands of substances that contain linked fluorine and carbon atoms	high
#D007		legacy PFAS	PFOA, PFOS and long-chain PFCAs, their salts and their precursors	high