| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|
| #Q001 | administrative | operational | mandatory | Adoption of Building Code | other | The code issued by the Canadian Commission on Building and Fire Codes, part of National Research Council Canada, known as CCBFC NRCC-CONST-56435E, “National Building Code of Canada 2020”, (First Printing), as amended by the document entitled “Ontario Amendments to the National Building Code of Canada 2020”, dated April 21, 2026 and issued by the Ministry of Municipal Affairs and Housing, are together adopted as the building code. | high | |
| #Q002 | administrative | operational | mandatory | Transition Provisions for Previous Building Code | other | Subject to subsection (2), Ontario Regulation 332/12 (Building Code) made under the Act, as it read on December 31, 2024, is deemed to continue in force with respect to construction, (a) for which a permit has been issued on or before December 31, 2024; or (b) for which the working drawings, plans and specifications are substantially completed on or before December 31, 2024, and for which an application for a permit is made on or before March 31, 2025 under that regulation, as it read on December 31, 2024. | Only applicable if construction commences within the required timeframe after permit issuance. | high |
| #Q003 | operational | operational | mandatory | Construction Commencement Timeframe for Transition Applicability | other | Subsection (1) does not apply unless the construction is commenced within six months after the permit is issued. | Applies when utilizing the transition provisions under subsection 2(1) maintaining Ontario Regulation 332/12. | high |
| #Q004 | administrative | operational | mandatory | Landfill Site Ownership | other | The holder of an environmental compliance approval to which a landfilling site is subject must own the entire site in fee simple, unless the site is on Crown land. | high | |
| #Q005 | reporting | reporting | mandatory | Notification of Identity or Ownership Changes | other | The holder of an environmental compliance approval or the applicant for an environmental compliance approval to which a landfilling site is or will be subject shall notify the Director in writing within 30 days after any change in his, her or its identity or status or any change in ownership of the site or ownership of property rights in the contaminant attenuation zone. | high | |
| #Q006 | design | operational | mandatory | Design Specifications Report Requirement | other | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report has been prepared in accordance with this section. | high | |
| #Q007 | operational | operational | mandatory | Site Preparation Report Requirement | other | A person shall not place any waste in a newly constructed base or base side slope area of a landfilling site until a written report has been prepared documenting all construction, quality assurance and quality control activities and confirming that the site conditions and details of the construction of the new area are in accordance with the design plans and specifications of the landfilling site. | high | |
| #Q008 | administrative | reporting | mandatory | Daily Record Keeping | other | The owner and the operator of a landfilling site shall ensure that daily records of site operations are made during the operation of the site and that the records are retained for at least two years after they are made. | high | |
| #Q009 | prohibition | health | mandatory | Burning Prohibition | other | The owner and the operator of a landfilling site shall ensure that no municipal waste is burned at the site as part of the landfilling operation. | Does not apply to clean wood and brush burned during daylight hours under controlled conditions. | high |
| #Q010 | prohibition | operational | mandatory | Scavenging Prohibition | other | The owner and the operator of a landfilling site shall ensure that there is no scavenging at the site. | high | |
| #Q011 | operational | aesthetic | mandatory | Daily Cover Requirement | other | The owner and the operator of a landfilling site shall ensure that all waste accepted for disposal at the site is disposed of in the waste fill zone and is covered at the end of each working day by daily cover in accordance with this section. | high | |
| #Q012 | administrative | operational | mandatory | Contaminant Attenuation Zone Rights Ownership | other | If a contaminant attenuation zone is necessary for proper operation of a landfilling site, the holder of an environmental compliance approval to which the landfilling site is subject must own property rights respecting the contaminant attenuation zone, unless, (a) the contaminant attenuation zone is on Crown land and the Crown has agreed in writing to the use of the land for that purpose; or (b) the contaminant attenuation zone is on a public road and the road authority has agreed in writing to the use of the land for that purpose. | If a contaminant attenuation zone is necessary for site operation. | high |
| #Q013 | design | aesthetic | mandatory | Waste Fill Area Buffer Area | other | The owner and the operator of a landfilling site shall ensure that the waste fill area is completely surrounded by buffer area in accordance with this section. | high | |
| #Q014 | reporting | reporting | mandatory | Annual Operations Report Preparation | other | The owner and the operator of a landfilling site shall ensure that, (a) within three months after each anniversary of the date on which waste was first accepted at the site, an annual report is prepared respecting the operation of the landfilling site, including a summary of results from monitoring programs; and (b) all of the reports are retained until at least two years after the site is closed. | high | |
| #Q015 | monitoring | operational | mandatory | Surface Water Monitoring Program | other | The owner and the operator of a landfilling site shall ensure that a program is carried out for monitoring the quality and quantity of the surface water features on the site and of the surface water features that receive a direct discharge from the site. | high | |
| #Q016 | monitoring | operational | mandatory | Ground Water Monitoring Program | other | The owner and the operator of a landfilling site shall ensure that a program is carried out for monitoring ground water quality and quantity. | high | |
| #Q017 | reporting | reporting | mandatory | Closure Report Preparation | other | The owner and the operator of a landfilling site shall ensure that a written report on activities for the closure of the site, activities for the post-closure care of the site and the proposed end use of the site is prepared not later than the date 90 per cent of the total waste disposal volume is reached or two years before the anticipated date of closure, whichever comes first. | high | |
| #Q018 | reporting | treatment | mandatory | Leachate Disposal Report | wastewater | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report containing plans, specifications and descriptions for the management and disposal of any leachate collected at the site has been prepared. | high | |
| #Q019 | design | operational | mandatory | Subsurface Migration of Landfill Gas Report | other | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report has been prepared... that contains... 1. An assessment of the potential for the migration of landfill gas in the subsurface. 2. Plans... for the monitoring, control, collection, use or discharge of landfill gas at the site if... necessary. | high | |
| #Q020 | design | operational | mandatory | Atmospheric Emissions of Landfill Gas Report | other | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report has been prepared respecting the design, operation, maintenance and monitoring of facilities for the collection, and for the burning or use, of landfill gas generated by the site during site operation and following site closure. | Applies if volume > 1.5 million cubic metres unless exempt. | high |
| #Q021 | administrative | reporting | mandatory | Financial Assurance for Contingency Plans | other | The owner and the operator of a landfilling site shall ensure that financial assurance is provided for the contingency plans for the site, including the construction, operation, maintenance and replacement of works required by the contingency plans. | Does not apply to municipalities or the Crown. | high |
| #Q022 | administrative | reporting | mandatory | Financial Assurance for Closure and Post-Closure Care | other | The owner and the operator of a landfilling site shall ensure that financial assurance for the closure of the site and the post-closure care of the site is provided in accordance with this section. | Does not apply to municipalities or the Crown. | high |
| #Q023 | monitoring | operational | mandatory | Leachate Monitoring Program | wastewater | The owner and the operator of a landfilling site shall ensure that a program is carried out for monitoring leachate quality and quantity. | high | |
| #Q024 | corrective_action | operational | mandatory | Leachate Contingency Investigative Activities | wastewater | The owner and the operator of the landfilling site shall ensure that investigative activities are carried out with respect to the cause of an increase in contaminant concentrations if any of the trigger criteria described under paragraph 5 of subsection 12 (2)... is exceeded for any single monitoring event. | high | |
| #Q025 | operational | operational | mandatory | Final Cover Material Standards | other | The owner and the operator of a landfilling site shall ensure that the following materials are applied to the waste fill zone as final cover, from bottom to top: 1. A minimum of 0.6 metres of cover material. 2. A minimum of 0.15 metres of topsoil or other material approved by the Director... 3. A vegetative cover... | high | |
| #Q026 | design | operational | mandatory | Final Slopes Gradient Requirements | other | The owner and the operator of a landfilling site shall ensure that the final slopes above grade within the waste fill zone at the time of site closure do not exceed one unit vertical to four units horizontal and are not less than one unit vertical to 20 units horizontal. | high | |
| #Q027 | reporting | reporting | mandatory | Annual Post-Closure Care Report | other | The owner and the operator of a landfilling site shall ensure that, within three months after each anniversary of the date on which waste was last placed on the site, an annual report is prepared respecting the post-closure care of the landfilling site, including a summary of results from monitoring programs. | high | |
| #Q028 | design | operational | mandatory | Hydrogeological Assessment Report | other | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report on the geologic and hydrogeologic conditions of the site and ground water protection for the site has been prepared in accordance with this section. | high | |
| #Q029 | design | operational | mandatory | Surface Water Assessment Report | other | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report on the surface water conditions of the site and surface water protection for the site has been prepared in accordance with this section. | high | |
| #Q030 | design | operational | mandatory | Ground Water Protection Features Design Report | other | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report describing the design for the ground water protection features of the site has been prepared in accordance with this section. | high | |
| #Q031 | design | operational | mandatory | Leachate Contingency Plan Report | wastewater | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report containing plans, specifications and descriptions for a leachate contingency plan for the site has been prepared in accordance with this section. | high | |
| #Q032 | design | operational | mandatory | Surface Water Control Report | other | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report containing plans, specifications and descriptions for the control, treatment and discharge of surface water at the site during construction, site operation and following closure has been prepared in accordance with this section. | high | |
| #Q033 | design | operational | mandatory | Operation and Maintenance Procedures Report | other | A person shall not establish a new landfilling site or increase the total waste disposal volume of an existing landfilling site unless a written report has been prepared containing plans, specifications and descriptions of the operation, maintenance, monitoring, closure and post-closure care of the site, including matters related to record keeping, reporting and financial assurance. | high | |
| #Q034 | corrective_action | operational | mandatory | Implementation of Contingency Measures | other | If the monitoring results, investigative activities and implementation criteria indicate the need to implement contingency measures, the owner and the operator of a landfilling site shall ensure that the following steps are taken: 1. The Director must be notified of the need to implement contingency measures. 2. Detailed plans, specifications and descriptions for the design, operation and maintenance of the contingency measures must be prepared. 3. The contingency measures must be implemented. | Applicable when investigative activities indicate risks to liners or collection systems. | high |
| #Q035 | monitoring | operational | mandatory | Leachate Collection Pipe Inspection | wastewater | Leachate collection pipes must be inspected at least annually for the first five years after placement of waste overtop of each pipe and then as often as future inspections indicate to be necessary. | Condition for assuming 100-year, 75-year, or 60-year service life. | high |
| #Q036 | operational | operational | mandatory | Leachate Collection Pipe Cleaning | wastewater | Leachate collection pipes must be cleaned whenever an inspection indicates that cleaning is necessary. | Condition for assuming 100-year, 75-year, or 60-year service life. | high |
| #Q037 | operational | operational | mandatory | Leachate Removal Requirement | wastewater | Leachate must be removed from the collection system in order to avoid obstructions to leachate flows within the system. | Condition for assuming 100-year, 75-year, or 60-year service life. | high |
| #Q038 | administrative | operational | mandatory | Ownership Duration for Contaminant Attenuation Zone | other | The holder of the environmental compliance approval must continue to own the property rights for all of the contaminating life span of the site. | Applies to property rights in a contaminant attenuation zone. | high |
| #Q039 | design | health | mandatory | Landfill Gas Methane Concentration Design Criteria | other | The design of the site and any plans, specifications and descriptions for the control of landfill gas must ensure that the subsurface migration of landfill gas meets the following conditions: 1. The concentration of methane gas below the surface of the land at the boundary of the site must be less than 2.5 per cent by volume. 2. The concentration of methane gas must be less than 1.0 per cent by volume in any on-site building or enclosed structure... 4. The concentration of methane gas from the site must be less than 0.05 per cent by volume in any off-site building or enclosed structure... | Applicable to all building/structure safety designs for landfill gas. | high |
| #Q040 | monitoring | treatment | mandatory | Daily Cover Toxicity Testing | other | When tested using the Toxicity Characteristic Leaching Procedure, the daily cover must not produce leachate containing any of the contaminants listed in Schedule 4 to Regulation 347... at a concentration equal to or in excess of the concentration specified in that Schedule for the contaminant. | high | |
| #Q041 | prohibition | operational | mandatory | Sludge Deposition Restriction | wastewater | Sludge must not be deposited in the waste fill zone in a manner that would allow sludge to move into the leachate collection system and promote biological clogging. | Condition for assuming specified service lives for leachate collection systems. | high |
| #Q042 | administrative | reporting | mandatory | Annual Financial Assurance Update | other | The amount of financial assurance provided shall be updated annually or as otherwise required by the Director. | high | |
| #Q043 | administrative | operational | mandatory | Replacement of Used Financial Assurance | other | The owner and the operator of a landfilling site shall ensure that any amount of financial assurance used by the Director under subsection (6) is replaced within six months after it is used unless the Director directs otherwise. | Applies after the Director utilizes financial assurance for site closure or post-closure care expenses. | high |
| #Q044 | corrective_action | operational | mandatory | Contingency Action Steps | other | The owner and the operator of the landfilling site shall ensure that the steps described in subsection (3) are taken if the investigative activities required by subsection (1) indicate that potential exists for liner/leachate system failure or exceeding contaminant limits. | Triggered when investigative activities indicate potential for impact or failure. | high |
| #Q045 | design | operational | mandatory | Final Cover Design Objectives | other | The owner and the operator of a landfilling site shall ensure that the final cover is designed so that, (a) the infiltration rate through the final cover is in accordance with the design for the site respecting ground water protection prepared under section 10; (b) any existing or anticipated facilities for the control, collection, use or discharge of landfill gas are accommodated; and (c) the requirements for the end use of the site, as described in the site design report prepared under section 6 and the closure report prepared under section 31, are met. | high | |
| #Q046 | operational | operational | mandatory | Geotechnical Confirmation of Liner Integrity | other | The report of a suitably qualified geotechnical engineer must confirm that there is no evident cracking in the constructed liner or significant occurrence of clods, stones, branches or other material that could shorten the service life of the constructed liner or significantly increase the hydraulic conductivity. | Condition for assuming specified service lives for compacted clayey liners. | high |
| #Q047 | design | treatment | mandatory | Surface Water Protection Design Criteria | other | The plans, specifications and descriptions must ensure that, (a) the concentration of any contaminant in surface water being discharged from the site to a waterbody is in accordance with Ministry of Environment and Energy Guideline B - 1... and (b) the background levels for dissolved oxygen, turbidity, and temperature, and the hydrologic cycle of any on-site, adjacent or receiving surface water features, are not adversely affected by the site. | Applicable to site design for surface water control and discharge. | high |
| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Limit Type | Limit Value | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|---|---|
| #R001 | chemical | treatment | mandatory | Total Alkalinity - Public Pools and Spas | recreational water | requirement | 60 - 180 ppm | Maintained in every part of the pool or spa at all times during the daily use period. | During daily use period | high |
| #R002 | chemical | treatment | mandatory | pH Value - Public Pools and Spas | recreational water | requirement | 7.2 - 7.8 pH units | Maintained in every part of the pool or spa at all times during the daily use period. | During daily use period | high |
| #R003 | chemical | health | mandatory | Free Available Chlorine - Public Pools | recreational water | requirement | 0.5 - 10 ppm | Free available chlorine residual in every part of a public pool (excluding floatation/cold plunge pools). | Standard public pools during daily use period | high |
| #R004 | chemical | health | mandatory | Free Available Chlorine or Total Bromine - Public Spas | recreational water | requirement | 5 - 10 ppm | Residual in every part of a public spa. | During daily use period | high |
| #R005 | chemical | treatment | mandatory | Oxidation Reduction Potential (ORP) | recreational water | requirement | 600 - 900 mV | If the pool or spa is equipped with an automatic sensing device. | Applicable when automatic sensing device is present | high |
| #R006 | chemical | treatment | mandatory | Cyanuric Acid Concentration - Outdoor Pools | recreational water | requirement | <= 60 mg/L | Where cyanurate stabilization is maintained in outdoor pools. | Outdoor pools only; no cyanurate stabilization for indoor pools/spas | high |
| #R007 | physical | health | mandatory | Maximum Water Temperature - Public Spas | recreational water | requirement | <= 40 degrees Celsius | Maximum temperature limit set by a tamper-proof upper limit cut-off switch. | Mandatory for all public spas | high |
| #R008 | chemical | health | mandatory | Free Available Chlorine - Public Floatation Tank | recreational water | requirement | 1.5 - 5 ppm | Residual in every part of the floatation tank. | During daily use period | high |
| #R009 | physical | health | mandatory | Water Temperature - Public Cold Plunge Pool | recreational water | requirement | <= 15 degrees Celsius | Maintained temperature for a public pool defined as a cold plunge pool. | Operating as a cold plunge pool | high |
| #R010 | design | health | mandatory | Maximum Water Depth - Public Wading Pool | recreational water | requirement | <= 75 cm | Artificial body of water provided for children's use. | At any point in the wading pool | high |
| #R011 | operational | treatment | mandatory | Daily Make-up Water - Public Pools | recreational water | requirement | >= 15 litres per bather | Added during each operating day. | As determined by a water meter | high |
| #R012 | physical | operational | mandatory | Water Clarity Test Object - Black Disc | recreational water | requirement | 150 mm | Diameter of the black disc on a white background used for clarity testing. | Located at the deepest point of the pool | high |
| #R013 | chemical | health | mandatory | Total Bromine Residual - Non-Wave Pool | recreational water | requirement | 2 - 8 ppm | Residual in every part of a pool (other than wave action pools) where bromine is used. | Standard pools during daily use period | high |
| #R014 | chemical | health | mandatory | Total Bromine Residual - Wave Action Pool | recreational water | requirement | 3 - 10 ppm | Residual in every part of a wave action pool where bromine is used. | Wave action pools during daily use period | high |
| #R015 | chemical | health | mandatory | Free Available Chlorine - Floatation/Cold Plunge Pool | recreational water | requirement | 5 - 10 ppm | Free available chlorine residual in every part of the public floatation pool or public cold plunge pool. | During daily use period | high |
| #R016 | chemical | health | mandatory | Free Available Chlorine/Bromine - Hot Water Pool | recreational water | requirement | 5 - 10 ppm | Residual in every part of a hot water pool operating at 35 degrees Celsius or greater. | Temperature >= 35°C | high |
| #R017 | operational | treatment | mandatory | Water Turnover Rate - Class A Pool (Post-1974) | recreational water | requirement | >= 4 times capacity per day | Volume of water filtered, disinfected and passed through the pool each day. | Class A pool constructed after April 30, 1974 | high |
| #R018 | operational | treatment | mandatory | Water Turnover Rate - Class A (Pre-1974) and Class B Pool | recreational water | requirement | >= 3 times capacity per day | Volume of water filtered, disinfected and passed through the pool each day. | Class A pool constructed before May 1, 1974, or any Class B pool | high |
| #R019 | operational | health | mandatory | Maximum Bather Load - Public Spa | recreational water | requirement | 1 person per square metre | Maximum number of persons permitted to use the spa at any one time (based on surface water area). | Unless manufacturer's limit is lower | high |
| #R020 | design | reporting | mandatory | Emergency Phone Maximum Distance | recreational water | requirement | <= 30 m | Maximum distance from the pool or spa to the emergency telephone. | Applicable to Class B pools and public spas | high |
| #R021 | operational | health | mandatory | Spa Jet Pump Timer Limit | recreational water | requirement | <= 15 minutes | Maximum setting for the timing device controlling jet pump operation. | Spas containing hydro-massage jet fittings | high |
| #R022 | chemical | treatment | mandatory | Floatation Tank Total Alkalinity | recreational water | requirement | 80 - 120 ppm | Maintained in every part of the floatation tank during the daily use period. | Public floatation tanks | high |
| #R023 | physical | health | mandatory | Floatation Tank Water Temperature | recreational water | requirement | < 37 degrees Celsius | Maintained in every part of the floatation tank during the daily use period. | Public floatation tanks | high |
| #R024 | chemical | health | mandatory | Minimum Free Chlorine with Cyanurate (Outdoor) | recreational water | requirement | >= 1 ppm | Minimum free available chlorine residual when cyanurate stabilization is used. | Outdoor pools only; cyanuric acid <= 60 mg/L | high |
| #R025 | chemical | health | mandatory | Mineralized Water - Total Dissolved Solids | drinking water, agricultural water | requirement | > 6000 mg/L | Definition of mineralized water that triggers abandonment or notification requirements. | Found in well water | high |
| #R026 | chemical | health | mandatory | Mineralized Water - Chlorides | drinking water, agricultural water | requirement | > 500 mg/L | Definition of mineralized water that triggers abandonment or notification requirements. | Found in well water | high |
| #R027 | chemical | health | mandatory | Mineralized Water - Sulphates | drinking water, agricultural water | requirement | > 500 mg/L | Definition of mineralized water that triggers abandonment or notification requirements. | Found in well water | high |
| #R028 | design | operational | mandatory | Sealant Bentonite Slurry Density | other | requirement | >= 20 % bentonite solids by weight | Requirement for material to be considered a 'sealant' in well construction. | Slurry consisting of clean water and bentonite | high |
| #R029 | design | operational | mandatory | Shallow Works - Maximum Depth | other | requirement | <= 3.0 m | Maximum depth for a test hole or dewatering well to be exempt from most regulation provisions. | Below the ground surface | high |
| #R030 | design | health | mandatory | Separation Distance - Drilled Well | drinking water | requirement | >= 15 m | Minimum separation from a source of contaminants for a drilled well with casing > 6m depth. | Casing extends more than six metres below ground level | high |
| #R031 | design | health | mandatory | Separation Distance - Non-Drilled or Shallow Casing | drinking water | requirement | >= 30 m | Minimum separation from a source of contaminants for non-drilled wells or shallow drilled wells. | Casing <= 6m or well is not a drilled well | high |
| #R032 | chemical | health | mandatory | Well Disinfection Chlorine Concentration | drinking water, agricultural water | requirement | 50 - 200 mg/L | Concentration of free chlorine for well water dosing after construction or pump installation. | Water left undisturbed for at least 12 hours | high |
| #R033 | design | operational | mandatory | Well Casing Minimum Height | other | requirement | >= 40 cm | Height of casing above the highest point on the ground surface radially within 3 metres. | On completion of the well's structural stage | high |
| #R034 | design | operational | mandatory | Abandonment Surface Seal Thickness | other | requirement | 50 - 150 cm | Vertical thickness of bentonite sealing material placed at the ground surface during abandonment. | Bentonite chips, pellets, granules or powder in well opening | high |
| #R035 | design | treatment | mandatory | Steel Casing Wall Thickness (Inside Diameter > 50.8 mm) | drinking water, agricultural water | requirement | 4.78 mm | Nominal wall thickness for steel casing with an inside diameter of more than 50.8 millimetres. | Standard steel casing installations | high |
| #R036 | design | treatment | mandatory | Concrete Casing Wall Thickness | drinking water, agricultural water | requirement | 5.08 cm | Nominal wall thickness for concrete casing with an inside diameter of 60.96 centimetres or more. | Large diameter bored/dug wells using concrete casing | high |
| #R037 | design | health | mandatory | Minimum Casing Depth Below Ground | drinking water, agricultural water | requirement | >= 6 m | Minimum length of casing required below the level of the original ground surface. | Standard well construction; does not apply to test holes or dewatering wells | high |
| #R038 | design | treatment | mandatory | Bored Well Diameter Clearance (Shallow) | drinking water, agricultural water | requirement | >= 15.2 cm | Diameter of the well relative to the outside diameter of the casing from surface to 2.5m depth. | Bored wells with concrete casing | high |
| #R039 | physical | operational | mandatory | Bentonite Sealing Material Particle Size | other | requirement | 6 - 20 mm | Diameter of bentonite granules, pellets, or chips used for filling the upper annular space. | From ground surface to a depth of at least 2.5 metres | high |
| #R040 | design | operational | mandatory | Well Pit Floor Sealant Thickness | other | requirement | >= 10 cm | Thickness of the suitable sealant layer covering the floor of a well pit. | Permitted well pits (e.g., mineral exploration) | high |
| #R041 | design | operational | mandatory | Air Vent Minimum Inside Diameter (Large Casing) | drinking water, agricultural water | requirement | >= 1.2 cm | Minimum inside diameter for an air vent installed on a drilled well pump. | Inside diameter of casing is 12.7 centimetres or more | high |
| #R042 | design | operational | mandatory | Pitless Adapter Excavation Sealant Width | drinking water, agricultural water | requirement | >= 20 cm | Minimum distance outward from the casing for sealant filling an outside excavation. | Where connection to casing is made below ground surface | high |
| #R043 | physical | reporting | mandatory | Visual Examination Water Sample Volume | drinking water, agricultural water | requirement | >= 1 L | Minimum volume of a water sample provided to the well purchaser. | On the day the structural stage is complete | high |
| #R044 | design | operational | mandatory | Abandonment Barrier Top Depth Below Surface | other | requirement | 2 m | Required distance below the ground surface for the upper limit of the abandonment barrier column. | During well abandonment plugging process | high |
| #R045 | chemical | health | mandatory | Maximum Free Chlorine Residual for Pump Out | drinking water, agricultural water | requirement | < 1 mg/L | Concentration threshold to which chlorinated water must be pumped out of a well. | Following unsuccessful initial disinfection or as final step of disinfection | high |
| #R046 | chemical | treatment | mandatory | Bentonite Sodium Montmorillonite Content | other | requirement | > 50 % by weight | Constituent requirement for material to be classified as 'bentonite' for well use. | Commercially produced sealing material | high |
| #R047 | design | operational | mandatory | Tremie Pipe Minimum Inner Diameter Ratio | other | requirement | >= 3 x particle diameter | Minimum internal size of a tremie pipe relative to the material passing through it. | Used to conduct material to the bottom of a hole | high |
| #R048 | design | treatment | mandatory | Steel Casing Wall Thickness (Small Inside Diameter) | drinking water, agricultural water | requirement | 2.77 mm | Nominal wall thickness for steel casing with an inside diameter of 50.8 millimetres or less. | Standard steel casing installations | high |
| #R049 | design | operational | mandatory | Casing Extension Height Above Surrounding Floor | drinking water, agricultural water | requirement | >= 15 cm | Required extension of well casing above a surrounding floor where a pump is installed. | Floor constructed around/adjacent to casing; pump above/adjacent | high |
| #R050 | design | operational | mandatory | Standard Buffer Area Width | other | requirement | >= 100 metres | The buffer area shall be at least 100 metres wide at every point surrounding the waste fill area. | Standard requirement unless reduced by technical report | high |
| #R051 | design | operational | mandatory | Reduced Buffer Area Width | other | requirement | >= 30 metres | Minimum buffer width allowed if a written report confirms the area is sufficient for operations and impacts. | Requires technical report confirmation | high |
| #R052 | operational | health | mandatory | Methane Concentration at Site Boundary | other | requirement | < 2.5 % by volume | The concentration of methane gas below the surface of the land at the boundary of the site. | During site operation and post-closure | high |
| #R053 | operational | health | mandatory | Methane Concentration in On-Site Buildings | other | requirement | < 1.0 % by volume | Concentration in any on-site building or enclosed structure and immediately outside foundations. | Applicable if structure contains electrical equipment or potential ignition sources | high |
| #R054 | design | operational | mandatory | Infiltration Rate through Final Cover | other | requirement | >= 0.15 metres per year | Infiltration rate used for generic ground water protection designs. | Generic design options under subsections 10(4) and 10(5) | high |
| #R055 | design | treatment | mandatory | Primary Clayey Liner Thickness | other | requirement | >= 0.75 metres | Thickness of the clayey liner for ground water protection systems. | Standard generic design; must be compacted in at least 5 lifts (Schedule 4) | high |
| #R056 | design | treatment | mandatory | Primary HDPE Liner Thickness | other | requirement | >= 1.5 millimetres | Thickness of the high density polyethylene (HDPE) geomembrane liner. | Used for 150-year service life design | high |
| #R057 | operational | reporting | mandatory | Daily Records Retention Period | other | requirement | >= 2 years | The owner and operator shall ensure daily records of site operations are retained. | After the records are made | high |
| #R058 | design | operational | mandatory | Final Cover Material Thickness | other | requirement | >= 0.6 metres | Minimum thickness of cover material applied to the waste fill zone. | Bottom layer of the final cover | high |
| #R059 | design | operational | mandatory | Final Cover Topsoil Thickness | other | requirement | >= 0.15 metres | Minimum thickness of topsoil or approved material to sustain plant growth. | Middle layer of the final cover | high |
| #R060 | design | operational | mandatory | Maximum Final Slope | other | requirement | 1:4 vertical to horizontal ratio | Maximum final slopes above grade within the waste fill zone at site closure. | Unless alternative design for slope stability is prepared | high |
| #R061 | design | operational | mandatory | Minimum Final Slope | other | requirement | 1:20 vertical to horizontal ratio | Minimum final slopes above grade within the waste fill zone at site closure. | Unless alternative design for drainage/stability is prepared | high |
| #R062 | design | operational | mandatory | Total Waste Disposal Volume Trigger | other | requirement | > 40000 cubic metres | Regulation applies to sites intended to have this volume and accept only municipal waste. | New sites or extensions after August 1, 1998 | high |
| #R063 | physical | reporting | mandatory | Background Concentration Sample Size | other | requirement | >= 5 samples | Median value for a contaminant based on all ground water samples taken from the receptor aquifer. | Taken at or near the site boundary | high |
| #R064 | chemical | health | mandatory | X-Factor (Health Related) | other | requirement | 0.25 scalar | Value of X in the maximum allowable concentration formula when Cr is a health related drinking water objective. | Formula: Cm = Cb + (Cr - Cb) * X | high |
| #R065 | design | treatment | mandatory | Attenuation Layer Thickness (Single Liner) | other | requirement | >= 3 metres | Thickness of natural or engineered soil layer at the base of the waste fill zone for attenuation. | Subsection 10 (4) generic design | high |
| #R066 | design | treatment | mandatory | Attenuation Layer Thickness (Double Liner) | other | requirement | >= 1 metres | Thickness of natural or engineered soil layer at the base of the waste fill zone for attenuation. | Subsection 10 (5) generic design | high |
| #R067 | operational | health | mandatory | Off-site Building Methane Concentration | other | requirement | < 0.05 % by volume | The concentration of methane gas from the site in any off-site building or enclosed structure. | If building contains electrical equipment or potential ignition sources | high |
| #R068 | design | operational | mandatory | Gas Collection System Volume Trigger | other | requirement | > 1.5 million cubic metres | Requirement to prepare a report for the collection and burning/use of landfill gas. | New or increased site volume exceeds this threshold | high |
| #R069 | operational | health | mandatory | Minimum Post-Closure Contaminating Life Span | other | requirement | >= 25 years | Minimum period for estimating costs related to leachate for financial assurance. | From the date waste is last deposited at the site | high |
| #R070 | operational | reporting | mandatory | Annual Operations Report Deadline | other | requirement | <= 3 months | Deadline to prepare an annual report after each anniversary of the date waste was first accepted. | high | |
| #R071 | design | treatment | mandatory | Stone Layer Base Thickness (LCS) | other | requirement | >= 0.5 metres | Minimum thickness of stones in the primary leachate collection system layer elsewhere than the side slopes. | 100-Year Service Life condition | high |
| #R072 | design | treatment | mandatory | LCS Stone Gradation D85 | other | requirement | >= 37 millimetres | Stone diameter such that 85 per cent of the stones in the layer have a smaller diameter. | high | |
| #R073 | design | treatment | mandatory | LCS Stone Fine Content | other | requirement | <= 1.0 % by weight | Maximum amount of stones that may pass the US #200 sieve. | high | |
| #R074 | design | treatment | mandatory | Leachate Pipe Internal Diameter | other | requirement | >= 150 millimetres | Minimum internal diameter for perforated HDPE leachate collection pipes. | high | |
| #R075 | design | treatment | mandatory | Leachate Pipe Perforation Diameter | other | requirement | >= 12 millimetres | Minimum perforation diameter for leachate collection pipes. | high | |
| #R076 | design | treatment | mandatory | LCS Drainage Path Spacing (100yr) | other | requirement | <= 50 metres | Maximum drainage path length before leachate can potentially intercept a collection pipe. | 100-Year Service Life | high |
| #R077 | design | treatment | mandatory | Clay Liner Lift Thickness | other | requirement | <= 0.15 metres | Maximum compacted thickness for each of the lifts in which the liner is compacted. | high | |
| #R078 | chemical | health | mandatory | Table 1: Benzene Health Objective | other | MAC | 0.005 mg/L | Health Related Drinking Water Objective for ground water protection design. | high | |
| #R079 | chemical | aesthetic | mandatory | Table 1: Chloride Aesthetic Objective | other | AO | 250 mg/L | Aesthetic Drinking Water Objective for ground water protection design. | high | |
| #R080 | chemical | health | mandatory | Table 1: Vinyl Chloride Health Objective | other | MAC | 0.002 mg/L | Health Related Drinking Water Objective for ground water protection design. | high | |
| #R081 | design | operational | mandatory | Max Waste Loading (Single Liner, 0 Background Chloride) | other | requirement | 98500 m3/ha | Maximum waste loading for generic single liner design option. | Background Chloride Concentration = 0 mg/L | high |
| Req ID | Category | Name | Context | Confidence |
|---|---|---|---|---|
| #D001 | base side slope | any portion of the base of the waste fill zone extending from ground surface downward at an angle steeper than one unit vertical to four units horizontal | high | |
| #D002 | buffer area | that part of a landfilling site that is not waste fill area | high | |
| #D003 | contaminant attenuation zone | a three-dimensional zone that, (a) is located on land adjacent to a landfilling site, (b) is in the subsurface or extends into the subsurface, and (c) is used or is intended to be used for the attenuation of contaminants from the landfilling site to levels that will not have an unacceptable impact beyond the boundary of the zone | high | |
| #D004 | contaminating life span | (a) in respect of a landfilling site, the period of time during which the site will produce contaminants at concentrations that could have an unacceptable impact if they were to be discharged from the site, and (b) in respect of a landfilling site and a contaminant or group of contaminants, the period of time during which the site will produce the contaminant or a contaminant in the group at concentrations that could have an unacceptable impact if they were to be discharged from the site | high | |
| #D005 | maximum waste loading | for a landfilling site, the total waste disposal volume divided by the area of the waste fill area | high | |
| #D006 | primary leachate collection system | the uppermost leachate collection system below the waste fill zone | high | |
| #D007 | primary liner | the uppermost liner below the waste fill zone | high | |
| #D008 | secondary leachate collection system | a leachate collection system located below the primary leachate collection system | high | |
| #D009 | secondary liner | a liner located below the primary liner | high | |
| #D010 | service life | the period of time during which a properly maintained engineered facility will function in accordance with the performance specifications for its design | high | |
| #D011 | unacceptable impact | interference with existing or potential reasonable uses of, (a) land, (b) ground water in or under land, or (c) surface water on land | high | |
| #D012 | waste fill area | the area on the surface of a landfilling site beneath which or above which waste is disposed of by landfilling | high | |
| #D013 | background concentration of a contaminant | the median value for that contaminant based on all ground water samples taken from the receptor aquifer in accordance with the following rules: 1. At least five samples must be taken. 2. The samples must be taken at or near the site boundary where the potential impact is being examined. 3. The samples must not be taken from locations known to be or likely to be contaminated by human activity. | medium | |
| #D014 | D85 | for stones in a stone layer is the stone diameter such that, when measured by weight, 85 per cent of the stones in the layer have a smaller diameter | high | |
| #D015 | D60 | for stones in a stone layer is the stone diameter such that, when measured by weight, 60 per cent of the stones in the layer have a smaller diameter | high | |
| #D016 | D10 | for stones in a stone layer is the stone diameter such that, when measured by weight, 10 per cent of the stones in the layer have a smaller diameter | high | |
| #D017 | building code | The code issued by the Canadian Commission on Building and Fire Codes, part of National Research Council Canada, known as CCBFC NRCC-CONST-56435E, ‘National Building Code of Canada 2020’, (First Printing), as amended by the document entitled ‘Ontario Amendments to the National Building Code of Canada 2020’, dated April 21, 2026 and issued by the Ministry of Municipal Affairs and Housing, are together adopted as the building code. | high |