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Document ID ca-bc-rgmaaw-2025-06-27 Title Regulatory Guidance for Mining Activities In and Around Watercourses URL unknown Jurisdiction /ca/bc Subdomain(s) Industrial water, Wastewater, Groundwater, Stormwater Language en Status completed Analyzed at 2026-03-15 07:47:30.997773+00:00 Relevance Guidance on BC regulations for mining activities affecting watercourses.

Q Qualitative Requirements (20)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001administrativereportingmandatoryMines Act Application Submissionother, aquatic lifeSection 10 (1) of the Mines Act requires proponents to submit applications outlining the details of the proposed work and a program for the protection of watercourses affected by the mine.When seeking approval for mining activities under the Mines Act that affect watercourses.high
#Q002operationaloperationalmandatoryProponent Responsibilities in or Near Wateraquatic life, otherIf a mine proponent seeks to undertake a project in or near water, they are responsible for: Understanding the risks to fish and fish habitat associated with the proposed project. Taking measures to avoid and mitigate risks to fish and fish habitat. Requesting authorization where legally required (e.g. when it is not possible to avoid and mitigate risks to fish and fish habitat). Ensuring compliance with all statutory instruments, including federal and provincial legislation.When undertaking a project in or near water.high
#Q003administrativeoperationalrecommendedUse of Qualified Professionalsaquatic life, otherWhen working in or near water, mine proponents should consider the use of qualified professionals for a number of tasks, including: Assessing the risks to aquatic ecosystems. Preparing regulatory applications and required plans. Designing structures that meet health and safety, as well as environmental considerations (e.g. fish passage, stream discharge, etc.). Identification of mitigation measures and prescriptions for erosion control, sediment management, and habitat protection. Ensuring compliance with regulatory conditions.When working in or near water.high
#Q004prohibitionoperationalmandatoryAvoidance of Harm to Fish and Habitataquatic lifeTo follow the fish and fish habitat protection provisions of the Fisheries Act, mine proponents must avoid: Actions causing death of fish, and Harmful alteration, disruption, or destruction of fish habitat.Under the federal Fisheries Act.high
#Q005operationaloperationalmandatoryImplementation of Mitigation Measuresaquatic lifeMining activities in or around watercourses must plan and implement mitigation measures that: Prevent the death of fish. Occur during in-stream timing windows to protect fish, including: their eggs, juveniles, spawning adults, and the organisms upon which they feed. Maintain riparian vegetation including maintaining an undisturbed vegetated buffer zone between areas of on-land activity and the high-water mark of any water body. Prevent the harmful alteration, disruption, or destruction of fish habitat by avoiding: Conducting any work, undertaking or activity in water, Placing fill or other temporary or permanent structures below the high-water mark, Fording of the watercourse, and Disturbing or removing materials from the banks, shoreline, or waterbody bed. Maintain fish passage by avoiding: Changing flow or water level, and Obstructing or interfering with the movement and migration of fish. Prevent entry of deleterious substances in water, this includes sediment, hydrocarbons, and harmful chemicals.When conducting mining activities in or around watercourses.high
#Q006reportingreportingmandatoryDFO Request for Reviewaquatic lifeIf it is uncertain whether a proposed project will cause the death of fish and/or harmful alteration, disruption or destruction of fish habitat, a request for review of the project is to be submitted to DFO.When uncertain about impacts to fish and fish habitat.high
#Q007administrativeoperationalmandatoryCompliance with Fisheries Act Authorization Conditionsaquatic lifeThe authorization will include terms and conditions the proponent must follow to avoid, mitigate, offset (counterbalance impacts) and monitor the impacts to fish and fish habitat resulting from the project.If the DFO grants a project authorization under the Fisheries Act.high
#Q008administrativeoperationalmandatoryAuthorization for Changes in and About a Streamother, aquatic lifeTo make changes in and about a stream, a mine proponent must hold a water licence, use approval or change approval; or follow an order, or be in accordance with Part 3 of the Water Sustainability Regulation.When planning changes in and about a stream.high
#Q009administrativeoperationalmandatoryLegal Instrument for Stream Changesother, aquatic lifeA mine proponent must have permission in the form of a legal instrument to make a 'changes in and about a stream' under the Water Sustainability Act.To make changes in and about a stream under the WSA.high
#Q010administrativeoperationalmandatoryAuthorized Changes under WSR Section 39(3)other, aquatic lifeFor Section 39(3) of the Water Sustainability Regulation to apply and authorize a change in and about a stream for mineral and coal exploration, four requirements must be met: 1. The owner, agent or manager of an exploration project must have an intent to operate within a riparian setback, and there is no way to avoid impacts. 2. The owner, agent, or manager must prepare a management plan, and submit it as part of the Notice of Work application to an inspector... 3. The Notice of Work application is approved and a permit under Section 10 of the Mines Act is issued. The Permittee must comply with the permit conditions... 4. The Permittee making the change complies with Part 9 of the Code, specifically the requirements of Part 9.5.1.For mineral and coal exploration seeking authorization under WSR Section 39(3).high
#Q011administrativeoperationalmandatoryWSA Authorization for Non-Exploration ActivitiesotherOther types of mining activities such placer, quarries, sand and gravel, and coal and mineral mines seeking to make a 'change in and about a stream' must seek authorization under the Water Sustainability Act.For mining activities other than mineral and coal exploration.high
#Q012reportingreportingmandatoryNotice to Habitat Officeraquatic life, otherFor any changes that are considered authorized changes under Part 3 of the Water Sustainability Regulation, the proponent is required to submit a notice to a habitat officer.When making authorized changes under Part 3 of the Water Sustainability Regulation.high
#Q013operationaloperationalmandatoryUse of Environmental Mitigation Hierarchyaquatic life, otherThe use of the mitigation hierarchy requires that all feasible measures be considered and applied at one level before moving to the next.When applying the Environmental Mitigation Policy framework.high
#Q014administrativeoperationalmandatoryWSA Section 11 Approvalother, aquatic lifeA person proposing to conduct a 'change in and about a stream' must obtain approval under Section 11 of the WSA.When proposing a change in and about a stream.high
#Q015administrativeoperationalmandatoryRequirements for WSR Section 39(3) Authorizationother, aquatic lifeFor Section 39(3) of the Water Sustainability Regulation to apply and authorize a change in and about a stream for mineral and coal exploration, four requirements must be met: 1. The owner, agent or manager of an exploration project must have an intent to operate within a riparian setback, and there is no way to avoid impacts. 2. The owner, agent, or manager must prepare a management plan, and submit it as part of the Notice of Work application to an inspector. The application must be for exploration mining activities, that includes the changes in and about a stream associated with: a. Construction, maintenance, deactivation and reclamation of stream crossings; b. Access from water landings for the purpose of servicing exploration camps and equipment; c. Access to set up and service water supply pumps and lines; or d. Access to service drill sites. 3. The Notice of Work application is approved and a permit under Section 10 of the Mines Act is issued. The Permittee must comply with the permit conditions under section D. Environmental Land and Watercourses Conditions for Works in and about a Stream. These conditions were developed with Water Sustainability Act regulators and align with the requirements of the authorized changes under Water Sustainability Regulation Section 39(1). 4. The Permittee making the change complies with Part 9 of the Code, specifically the requirements of Part 9.5.1. It must contain a plan that shows how some specific activities will to the extent practicable: a. Maintain the integrity of the stream, lake or wetland; b. Prevent the introduction of deleterious substances into a stream, lake or wetland; and c. Minimize the disturbance caused by the activity.For mineral and coal exploration seeking authorization under WSR Section 39(3).high
#Q016operationaloperationalguidanceWetland Mitigation ConsiderationotherWetland alteration work may require consideration of mitigation and conservation measures to reduce wetland losses and ensure the protection and management of wetlands.When planning proposed alterations to wetlands under Water Sustainability Act jurisdiction.high
#Q017administrativeoperationalmandatoryQualified Professional RequirementotherThe Province requires the use of qualified professionals for many aspects of a Mines Act application and the development of management plans and structural designs.For many aspects of a Mines Act application and development of management plans and structural designs.high
#Q018administrativeoperationalmandatoryMajor Mines WSA Authorizationotheralthough some exploration activities may be considered under a Notice of Departure for Major Mines, since Major Mines Permits do not typically have specific conditions related to 'changes in and about a stream' (requirement 2 above), mine proponents must seek authorization under the Water Sustainability Act.For Major Mines proponents seeking to make changes in and about a stream.high
#Q019operationaloperationalmandatoryProtections for Authorized Changesaquatic lifeThese authorized changes must follow specific procedures and mandatory requirements and are subject to protections for water quality, aquatic habitat, and other users.When undertaking authorized changes under Part 3 of the Water Sustainability Regulation.high
#Q020operationaloperationalguidanceEAO Habitat Offsetting Requirementaquatic lifeWhere applicable, to reduce residual impacts to aquatic values, the Environment Assessment Office (EAO) may require the development and implementation of habitat offsetting plans as a condition of an Environmental Assessment Certificate.During the Environmental Assessment review process for mining projects.high

P Quantitative Requirements (2)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001physicalunknownmandatoryWetland area threshold (Code definition)otherrequirement>= 0.25 hectaresDefinition of a Wetland under the Code [Part 9], which determines applicability. Wetlands <0.25 ha are not considered under the Code, though there is no minimum size under Water Sustainability Act jurisdiction.Applies unless a smaller area is identified as regionally significant wildlife habitat.high
#P002physicalunknownmandatoryWetland area threshold (Code definition)aquatic liferequirement>= 0.25 hectaresDefinition of a Wetland under the Code [Part 9], which determines applicability. Wetlands < 0.25 ha are not considered under the Code, though there is no minimum size under Water Sustainability Act jurisdiction.Applies unless a smaller area is identified as regionally significant wildlife habitat.high

D Definitions (17)

Req ID Category Name Context Confidence
#D001Stream (Code definition)'Stream' [Part 9] is defined as any naturally occurring reach flowing on a perennial or seasonal basis with a continuous channel bed and banks, whether the bed or banks of the reach are locally obscured by overhanging or bridging vegetation or soil mats, if the channel bed: (a) is scoured by water, or (b) contains any material collection of inorganic alluvium deposited by water.high
#D002Stream (Water Sustainability Act definition)"Stream" is defined as a natural watercourse, including a natural glacier course, or a natural body of water, whether or not the stream channel of the stream has been modified, or a natural source of water supply. The definition of 'stream' includes, without limitation, a lake, pond, river, creek, spring, ravine, gulch, wetland, or glacier, whether or not usually containing water, including ice. The definition of stream does not include an aquifer.high
#D003Stream Channel (Water Sustainability Act definition)"stream channel", in relation to a stream, means the bed of the stream and the banks of the stream, both above and below the natural boundary and whether or not the channel has been modified, and includes side channels of the stream.high
#D004Watercourse (Code definition)'Watercourse' [Part 6 and 10] is defined as a natural stream or source of water, whether usually containing water or not, and includes any lake, river, creek, spring, ravine, swamp, and gulch.high
#D005Watercourse (Water Sustainability Act definition)' watercourse ' is included in the definition of a stream.high
#D006Wetland (Code definition)' Wetland ' [Part 9] is defined as an area of 0.25 hectares or greater, unless a smaller area is identified as regionally significant wildlife habitat, that is inundated or saturated by surface or ground water at a frequency and duration sufficient to support a prevalence of vegetation typically adapted for life in wet or saturated soil conditions.high
#D007Wetland (Water Sustainability Act definition)' Wetland' means a swamp, marsh, fen, or prescribed feature .high
#D008changes in and about a streamThe Water Sustainability Act defines 'c hanges in and about a s tream' as: Any modification to the nature of a stream, including any modification to the land, vegetation and natural environment of a stream or the flow of water in a stream, or Any activity or construction within a stream channel that has or may have an impact on a stream or a stream channel.high
#D009BCBritish Columbiahigh
#D010MCMMinistry of Mining and Critical Mineralhigh
#D011WLRSMinistry of Water, Land and Resource Stewardshiphigh
#D012WSAWater Sustainability Acthigh
#D013the CodeHealth, Safety and Reclamation Code for Mines in British Columbiahigh
#D014MMOMajor Mines Officehigh
#D015ROBRegional Operations Branchhigh
#D016DFODepartment of Fisheries and Oceans Canadahigh
#D017EAOEnvironment Assessment Officehigh