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Document ID ca-on-ugnfr-2026-03-27 Title Understanding the greenhouse nutrient feedwater regulation URL https://www.ontario.ca/page/understanding-greenhouse-nutrient-feedwater-regulation Jurisdiction /ca/on Subdomain(s) none Language Status completed Analyzed at 2026-05-12 04:18:10.002546+00:00 Relevance inventory_targeted_fetch

22 Qualitative 1 Quantitative 36 Definitions

Q Qualitative Requirements (22)

Req ID	Category	Intent	Legal Status	Name	Subdomain(s)	Context	Conditions	Confidence
#Q001	operational	operational	mandatory	Application Setbacks	agricultural water, wastewater	There are many ways the regulation protects our waterways, including: requiring application setbacks from watercourses and wells		high
#Q002	prohibition	operational	mandatory	Prohibition of Application on Frozen/Snow-Covered Land	agricultural water, wastewater	There are many ways the regulation protects our waterways, including: prohibiting application to frozen or snow-covered land		high
#Q003	monitoring	operational	mandatory	Soil Sampling and Analysis	agricultural water, wastewater	There are many ways the regulation protects our waterways, including: requiring agricultural operations to carry out sampling and analysis of soil as part of the preparation of a GNF plan	As part of the preparation of a GNF plan	high
#Q004	operational	operational	mandatory	Storage Facility Maintenance	agricultural water, wastewater	There are many ways the regulation protects our waterways, including: ensuring permanent GNF storage facilities are maintained to minimize leakage		high
#Q005	administrative	reporting	mandatory	Greenhouse Operation Registration	agricultural water, wastewater	Greenhouse operations must prepare their registration in a form specified by the director and submit it to the director.	Applies to greenhouse operations generating GNF and who choose to register under the regulation	high
#Q006	reporting	reporting	mandatory	Registration Content Requirements	agricultural water, wastewater	The registration must contain all information required by Part III of the regulation and Part 3 of the protocol.		high
#Q007	administrative	reporting	mandatory	GNF Strategy Submission	agricultural water, wastewater	If the operation has five or more nutrient units, a GNF strategy must also be submitted at the same time as the registration of the greenhouse operation.	If the operation has five or more nutrient units	high
#Q008	administrative	operational	mandatory	GNF Strategy Preparer Qualifications	agricultural water, wastewater	The strategy: [...] must be prepared by a person who meets the requirements set out in the regulation	If the operation has five or more nutrient units requiring a GNF strategy	high
#Q009	reporting	reporting	mandatory	GNF Strategy Annual Update	agricultural water, wastewater	The strategy: [...] must be updated annually	If the operation has five or more nutrient units requiring a GNF strategy	high
#Q010	operational	operational	mandatory	Training and Education Prerequisite	agricultural water, wastewater	Before carrying out any of these practices, you must meet the requirements and complete the appropriate training.	Before preparing GNF strategies/plans, engaging in land application, transporting GNF, or land applying GNF at an agricultural operation	high
#Q011	administrative	operational	mandatory	Nutrient Management Consultant Certification	agricultural water, wastewater	For nutrient management consultants and people wanting to prepare GNF strategies, plans and land application schedules for agricultural operations they do not own, operate or work for: they need to hold an Agricultural Operation Strategy and Plan Development Certificate (AOSPDC)	For agricultural operations they do not own, operate or work for	high
#Q012	operational	operational	mandatory	Nutrient Management Consultant Online Training	agricultural water, wastewater	For nutrient management consultants and people wanting to prepare GNF strategies, plans and land application schedules for agricultural operations they do not own, operate or work for: [...] they must complete online training for AOSPDC holders to review the regulatory requirements and how to submit documents to OMAFRA	For agricultural operations they do not own, operate or work for	high
#Q013	operational	operational	mandatory	Greenhouse Operator Online Training	agricultural water, wastewater	For GNF generators and receivers, greenhouse controllers and farmers wanting to prepare GNF strategies, plans and land application schedules for operations they own, manage or work for: [...] you must complete online training for greenhouse operators to allow them to review the regulatory requirements and to submit documents to OMAFRA	For operations they own, manage or work for	high
#Q014	operational	operational	mandatory	Independent Carrier Online Training	agricultural water, wastewater	For independent carriers and people wanting to transport GNF for and between operations they do not own, operate or work for: [...] you must complete online training for independent carriers to review the regulatory requirements for transporting GNF	For operations they do not own, operate or work for	high
#Q015	administrative	operational	mandatory	Land Application Business Licence	agricultural water, wastewater	For people who represent businesses that want to land apply GNF and/or complete Land Application Schedules for agricultural operations they do not own, operate or work for, and the operations are subject to a GNF Plan: you need to hold a Prescribed Materials Application Business Licence	For operations they do not own, operate or work for, subject to a GNF Plan	high
#Q016	operational	operational	recommended	Land Application Business Recommended Training	agricultural water, wastewater	For people who represent businesses that want to land apply GNF and/or complete Land Application Schedules for agricultural operations they do not own, operate or work for, and the operations are subject to a GNF Plan: [...] it is recommended you complete online modules to review the regulatory requirements and best practices for land applying GNF	For operations they do not own, operate or work for, subject to a GNF Plan	high
#Q017	administrative	operational	mandatory	Nutrient Application Technician Licence	agricultural water, wastewater	For operators of land application equipment wanting to land apply GNF for agricultural operations they do not own, operate or work for: you need to get a Nutrient Application Technician Licence	For agricultural operations they do not own, operate or work for	high
#Q018	operational	operational	recommended	Equipment Operator Recommended Training	agricultural water, wastewater	For operators of land application equipment wanting to land apply GNF for agricultural operations they do not own, operate or work for: [...] it is recommended you complete online modules to review the regulatory requirements and best practices for land applying GNF	For agricultural operations they do not own, operate or work for	high
#Q019	administrative	reporting	mandatory	GNF Strategy Content - Nutrient Storage	wastewater, agricultural water	The strategy: indicates how the nutrients will be stored	Applicable to operations with five or more nutrient units requiring a GNF strategy	high
#Q020	administrative	reporting	mandatory	GNF Strategy Content - Receiver Identification	wastewater, agricultural water	The strategy: identifies the agricultural operation that will receive the GNF	Applicable to operations with five or more nutrient units requiring a GNF strategy	high
#Q021	administrative	operational	mandatory	OMAFRA Administrative Responsibilities	wastewater, agricultural water	OMAFRA is responsible for approvals, training, education and outreach under the NMA, accepts registration and strategy submissions and approves GNF plans.		high
#Q022	administrative	operational	mandatory	MECP Enforcement and Inspection Duties	wastewater, agricultural water	They carry out proactive inspections of greenhouses to ensure compliance with the regulation and protection of the environment and they are responsible for enforcing compliance with the OWRA, the EPA and the NMA.	Refers to the Ministry of Environment, Conservation and Parks (MECP)	high

P Quantitative Requirements (1)

Req ID	Category	Intent	Legal Status	Name	Subdomain(s)	Limit Type	Limit Value	Context	Conditions	Confidence
#P001	operational	reporting	mandatory	Nutrient units	agricultural water	requirement	>= 5 nutrient units	A GNF strategy must also be submitted at the same time as the registration of the greenhouse operation	If the operation has five or more nutrient units	high

D Definitions (36)

Req ID	Name	Context	Confidence
#D001	primary airport	A primary airport is a commercial service airport with more than 10,000 passenger boardings each year (49 U.S.C. 47102).	high
#D002	general permit	An NPDES general permit is written to cover multiple dischargers with similar operations and types of discharges.	high
#D003	NPDES	National Pollutant Discharge Elimination System	high
#D004	*	required	medium
#D005	PFAS	Per- and Polyfluoroalkyl Substances	high
#D006	NPDWR	National Primary Drinking Water Regulation	high
#D007	small systems	those serving 10,000 or fewer people	high
#D008	UCMR 5	fifth Unregulated Contaminant Monitoring Rule	high
#D009	HFPO-DA	commonly known as GenX	high
#D010	SDWA	Safe Drinking Water Act	high
#D011	.gov website	A .gov website belongs to an official government organization in the United States.	high
#D012	lock	A locked padlock	high
#D013	hazard index mixture	mixture of these three [PFHxS, PFNA, HFPO-DA] plus PFBS	high
#D014	direct	A point source that discharges pollutants to waters of the United States, such as streams, lakes, or oceans.	high
#D015	indirect	A facility that discharges pollutants to a publicly owned treatment works (municipal sewage treatment plant).	high
#D016	Battery manufacturing	encompasses the production of modular electric power sources where part or all of the fuel is contained within the unit and electric power is generated directly from a chemical reaction.	high
#D017	NAICS	North American Industry Classification System	high
#D018	TSS	total suspended solids	high
#D019	COD	chemical oxygen demand	high
#D020	https://	means you’ve safely connected to the .gov website	high
#D021	GNF	the nutrient solution removed from a closed circulation system at a greenhouse operation that is registered under the Greenhouse Nutrient Feedwater Regulation, O. Reg. 300/14	high
#D022	GNF	Greenhouse Nutrient Feedwater	high
#D023	O. Reg.	Ontario Regulation	high
#D024	s.	section	high
#D025	OWRA	Ontario Water Resources Act	high
#D026	III	three	high
#D027	NMA	Nutrient Management Act	high
#D028	ECA	Environmental Compliance Approval	high
#D029	MECP	Ministry of Environment, Conservation and Parks	high
#D030	OMAFRA	Ontario Ministry of Agriculture, Food and Rural Affairs	high
#D031	EPA	Environmental Protection Act	high
#D032	AOSPDC	Agricultural Operation Strategy and Plan Development Certificate	high
#D033	direct discharger	A point source that discharges pollutants to waters of the United States, such as streams, lakes, or oceans.	high
#D034	BOD	biochemical oxygen demand	high
#D035	BPT	Best Practicable Pollutant Control Technology Currently Available	high
#D036	NSPS	New Source Performance Standards	high