| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|
| #Q001 | administrative | operational | mandatory | General Authorization Requirement | wastewater, other | The Environmental Management Act requires that waste must not be discharged to the environment without authorization in the form of permits, approvals, regulations or waste management orders. | high | |
| #Q002 | operational | operational | mandatory | Waste Minimization Implementation | wastewater, other | waste minimization shall be implemented prior to using the deepwell disposal option; | high | |
| #Q003 | operational | operational | mandatory | Resource Conservation | wastewater, other | resource conservation, including surface water and the waste streams themselves, shall be pursued whenever possible; | whenever possible | high |
| #Q004 | prohibition | operational | mandatory | Dilution Prohibition | wastewater, other | waste fluids shall not be diluted solely for the purpose of avoiding waste fluid classification; | solely for the purpose of avoiding waste fluid classification | high |
| #Q005 | design | operational | recommended | Surface Facility Design and Operation Expectations | wastewater, other | operators of surface facilities that generate or process waste material that is disposed through Class 1b wells are expected to design and operate those facilities using sound waste management practices and principles of waste minimization; | facilities that generate or process waste material disposed through Class 1b wells | high |
| #Q006 | design | operational | mandatory | Subsurface Facility Compliance | wastewater, other | the design, construction and operation of all subsurface facilities must comply with requirements set out by the Oil and Gas Commission. | high | |
| #Q007 | operational | operational | mandatory | Generator Responsibility for Minimization and Conservation | wastewater, other | The waste generator has the primary responsibility to ensure the aforementioned waste minimization and resource conservation principles are followed. | high | |
| #Q008 | operational | operational | mandatory | Generator Responsibility for Waste Characterization and Handling | wastewater, other | In all cases, it is the responsibility of the waste generator to ensure that each waste stream has been properly identified, characterized, and is handled, treated, and disposed of in an acceptable manner. | high | |
| #Q009 | monitoring | operational | mandatory | Receiver Responsibility for Waste Verification | wastewater, other | In addition, the waste receiver must take reasonable steps to ensure that the identification and characterization of wastes supplied by the generator is appropriate. | high | |
| #Q010 | prohibition | operational | mandatory | Prohibited Waste Streams for Deepwell Injection | wastewater, other | The following is a list of waste streams that are prohibited from disposal by deepwell injection, except under exceptional circumstances as agreed to by a director or director's designate: • municipal or industrial sewage; • surface run-off water that meets surface discharge criteria, or can meet surface discharge criteria without cost-prohibitive treatment; • lube oils and spent solvents; • diesel invert drilling fluids; and • wastes where appropriate treatment technology exists (economically and technically). | except under exceptional circumstances as agreed to by a director or director's designate | high |
| #Q011 | monitoring | operational | mandatory | Verification of Standard Industry Practices for Listed Wastes | wastewater, other | It is therefore essential that both waste generators and receivers determine if these wastes are the result of standard industry practices. | pertains to listed wastes in 3.5.2.1 | high |
| #Q012 | administrative | operational | mandatory | Classification of Unusual Wastes | wastewater, other | Where unusual operations or circumstances occur that would result in wastes qualitatively different from the generalized waste streams listed here, the wastes shall be classified under the criteria listed in sections 3.5.1 and 3.5.2.2... | Where unusual operations or circumstances occur that would result in wastes qualitatively different from generalized streams | high |
| #Q013 | administrative | operational | mandatory | Hazardous Waste Authorization Exemption Requirement | wastewater, other | Given that Section 37 of the HWReg contained a prohibition on the underground injection of hazardous wastes, any authorization of deepwell disposal of these wastes will require an exemption from Section 37. | If wastes are classified as hazardous under the BC Hazardous Waste Regulation but deemed acceptable for deepwell disposal | high |
| #Q014 | operational | operational | mandatory | Heavy Metals Exceedance Disposal Requirement | wastewater, other | Waste fluids above these levels, when disposed by subsurface injection, must be through an approved Class 1a disposal well. | Waste fluids above levels specified in Schedule 1 | high |
| #Q015 | operational | operational | recommended | Waste Minimization Assessment Scope | wastewater, other | This assessment [for waste minimization] should include a full-cycle analysis of environmental benefits, economic and technically feasible options. | When performing a waste minimization assessment | high |
| #Q016 | administrative | operational | guidance | Director Discretion for Co-mingled Wastes | wastewater, other | The Director or his / her delegate may consider applying the procedure in cases where a small amount of waste from other sectors is co-mingled with wastes from the oil and gas sector. | In cases where a small amount of waste from other sectors is co-mingled with wastes from the oil and gas sector | high |
| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Limit Type | Limit Value | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|---|---|
| #P001 | physical | operational | mandatory | pH | wastewater | requirement | 6.0 - 9.0 pH | Criteria for waste fluid suitable for disposal in a Class 1b well | Limitation to avoid significant corrosion and possible wellbore integrity problems | high |
| #P002 | physical | operational | mandatory | flash point | wastewater | requirement | > 61 deg C | Criteria for waste fluid suitable for disposal in a Class 1b well | identifies non-flammable liquids | high |
| #P003 | chemical | treatment | mandatory | non-halogenated organic fraction | wastewater | requirement | < 10 per cent by mass | Criteria for waste fluid suitable for disposal in a Class 1b well | unless it is an untreatable sand or crude oil/water emulsion, or an antifreeze/dehydration fluid containing > 60% water by mass | high |
| #P004 | physical | operational | mandatory | water | wastewater | requirement | > 60 % by mass | Exception to non-halogenated organic fraction limit for antifreeze or dehydration fluid | Recycling is considered economically feasible up to a water content of 60 per cent by mass | high |
| #P005 | chemical | operational | mandatory | total combined concentration of halogenated organic compounds | wastewater | requirement | < 100 mg/kg | Criteria for waste fluid suitable for disposal in a Class 1b well | high | |
| #P006 | chemical | unknown | mandatory | polychlorinated biphenyl (PCB) | wastewater | requirement | < 50 mg/kg | Criteria for waste fluid suitable for disposal in a Class 1b well | Limitation based on federal environmental regulations | high |
| #P007 | chemical | unknown | mandatory | Arsenic | wastewater | requirement | <= 500 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P008 | chemical | unknown | mandatory | Beryllium | wastewater | requirement | <= 100 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P009 | chemical | unknown | mandatory | Cadmium | wastewater | requirement | <= 500 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P010 | chemical | unknown | mandatory | Chromium | wastewater | requirement | <= 500 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P011 | chemical | unknown | mandatory | Lead | wastewater | requirement | <= 500 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P012 | chemical | unknown | mandatory | Mercury | wastewater | requirement | <= 20 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P013 | chemical | unknown | mandatory | Nickel | wastewater | requirement | <= 500 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P014 | chemical | unknown | mandatory | Selenium | wastewater | requirement | <= 200 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P015 | chemical | unknown | mandatory | Silver | wastewater | requirement | <= 100 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P016 | chemical | unknown | mandatory | Thallium | wastewater | requirement | <= 200 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P017 | chemical | unknown | mandatory | Uranium | wastewater | requirement | <= 100 mg/kg | Heavy Metals Criteria for acceptable Class 1b well subsurface injection | Waste fluids above these levels must be disposed of through an approved Class 1a disposal well | high |
| #P018 | physical | operational | mandatory | pH | wastewater | requirement | 6.0 - 9.0 pH | Definition of 'neutralized' for listed wastes suitable for Class 1b wells | Applicable to aqueous fluids originating from standard industry practices such as sweetening agents or sulphur block run-off | high |
| Req ID | Category | Name | Context | Confidence |
|---|---|---|---|---|
| #D001 | Class 1b Wells | deepwell disposal wells used for the disposal of produced water, specific common oilfield waste streams, and waste streams meeting specific criteria; and constructed and operated in accordance with the requirements for class 1b wells as specified by the Oil and Gas Commission. | high | |
| #D002 | Deepwell Disposal | the technology of placing fluids deep underground, in porous formations of rocks, through wells or other similar conveyance systems. The fluids may be water, wastewater or water mixed with chemicals. | high | |
| #D003 | Waste Minimization | the reduction of a waste stream to be disposed of by assessment of the following parameters: source reduction, potential for reuse, potential to recycle, or potential to recover useful components. This assessment should include a full-cycle analysis of environmental benefits, economic and technically feasible options. | high | |
| #D004 | neutralized | refers to a pH between 6.0 and 9.0 | high | |
| #D005 | HWReg | BC Hazardous Waste Regulation | high | |
| #D006 | PCB | polychlorinated biphenyl | high | |
| #D007 | non-flammable liquids | liquids with a Flash point greater than 61 deg C | high | |
| #D008 | underground | Used synonymously with deepwell disposal. | high | |
| #D009 | deep well | Used synonymously with deepwell disposal. | high | |
| #D010 | sub-surface injection / disposal | Used synonymously with deepwell disposal. | high |