The proponent's open house, read with notes

"No current commercial substitute" is contradicted by the proponent's own application. Overview Part K of the Application itself notes: "In 2016, three Swedish companies, SSAB (steel producer), LKAB (iron ore producer) and Vattenfall (power company) announced the HYBRIT initiative, whereby the blast furnace process, which causes around 90% of the carbon dioxide emissions originat[ing from steelmaking], [would be replaced]..." (Overview, Part K, p108). HYBRIT delivered the world's first fossil-free steel to Volvo in 2021; Stegra (formerly H2 Green Steel) commissioned a five-million-tonne-per-year hydrogen-direct-reduced-iron plant in Sweden in 2026; SSAB, ArcelorMittal and ThyssenKrupp each have H2-DRI plants under construction. The commercial substitute exists today.

Thirty per cent of steel is already made without coking coal. The proponent's own September 2022 Public Consultation Report concedes: "70% of steel is produced using the blast furnace process while 30% is produced by the electric arc furnace (EAF) process. EAF uses scrap metal, while the blast furnace method uses coal..." (Public Consultation Report 3, p31). The "100% recyclable" sentence on the right-hand infographic is the one that undoes the "no substitute" claim on the left: as the recycled fraction rises, blast-furnace demand falls.

"Lower emissions future" reverses the direction policy is actually moving. Blast-furnace steelmaking (the BF-BOF route) is carbon-intensive; EAF and H2-DRI routes are less so. The proponent’s own Overview Part K confirms the structural distinction between the two routes (Overview, Part K, p106). The EU Carbon Border Adjustment Mechanism (CBAM) entered its transitional phase in October 2023 and begins financial reporting in 2026; it will tariff embedded carbon in imported steel. Japan and India — the two "importers" the billboard names — have each announced national hydrogen-steel programmes with specific MMtpa targets. A new BC blast-furnace coal mine opening in 2026 is sited against the global decarbonisation trajectory it says it is part of.

The 142-tonne wind-turbine framing is a lifecycle sleight-of-hand. A wind turbine produces zero-carbon electricity across a multi-decade operating life; the embedded one-time emissions from its 142 tonnes of blast-furnace coal are repaid many times over in the electricity it then displaces from fossil generation. New turbines can themselves be procured in EAF or H2-DRI steel. The billboard uses the wind turbine as a prop; it is the strongest counter-example to its own thesis.

The pie chart is 2019 forecast data at a price peak. "2019 Forecast Value" is now six years old; metallurgical coal prices spiked in 2021–22 and have moderated. The Northwest Institute's formal submission flagged this risk: "A critical parameter in estimating the Project's net economic benefits is the future coal price, and not just a global price, but the specific price that this project will obtain. The price obtained by TCL determines its revenue but is also important in forec[asting]..." (Northwest Institute submission, p36).

The territory map names the Clans; the billboard does not name the Hereditary Chiefs’ stance. The map correctly identifies the main project area as Gitdumden Clan territory within Wet’suwet’en territory. The Office of the Wet’suwet’en (OW) is the coalition of Wet’suwet’en Hereditary Clan Chiefs that liaises with the Environmental Assessment Office on behalf of the Hereditary system (App11.0-A Cultural Use Study, p40). TCL's Section 25 Information Request response (Section 25 IR response, p406) exists because OW raised structural issues about the consultation and how Wet’suwet’en knowledge is being carried into Project planning. The billboard phrase "cultural engagement with and consideration of Indigenous Peoples" is TCL's self-description, not OW's endorsement.

"Proven track record" and the question of who holds the long-term liability. Crown Mountain Metallurgical Coal Project — Bathurst's cited BC credential — is a proposed, not operating, mine; it has been in environmental-assessment limbo for years. The Northwest Institute review and Dr Allan Littlejohn's technical review both flagged that the Application does not adequately describe closure-phase active water treatment, so the long-term cost (and therefore the bonding assurance) is unclear (Littlejohn / NWI report, p5). A geologically-stable PAG impoundment must hold for centuries; the question is whether the parent company and its bond will be there to maintain it.

Read next.

• Overview, Part K, p108 — the proponent's own paragraph on HYBRIT
• Northwest Institute submission — economic and closure-liability critique
• Littlejohn / NWI technical review — water treatment and closure cost
• App11.0-A Cultural Use Study — the OW / Hereditary structure in TCL's own words
• Section 25 IR response — what TCL answered after OW's consultation concerns
• Our page on metallurgical coal and the alternatives

The production number on the billboard is the floor, not the ceiling. TCL’s own 2021 Allegiance Coal presentation projected ramping production to 1.35 million clean tonnes per annum by year 5. The Northwest Institute flagged the gap: "In a 2021 presentation by Allegiance Coal Limited, the production plan for the Tenas mine was described as being 750,000 clean metric tonnes per annum (ctpa) ramping up to 1.35 million ctpa by year 5. While the application by TCL is for an annual production rate of between 750,000 and 825,000 metric tonnes per year, a production rate of 1.35 million metric tonnes is clearly beyond the scope of th[is EA]" (Northwest Institute submission). If the mine is permitted at the billboard range and then expands, the environmental assessment under which it was approved covers less than two-thirds of actual output.

Daily production is pinned under the federal threshold by design. The Project’s daily production rate is 2,050 tonnes per day. Under the federal Regulations Designating Physical Activities, coal mines ≥ 3,000 tonnes/day trigger a federal environmental assessment: "The CEAA 2012 … does not apply to the Project because the proposed production capacity is under the 3,000 tonnes per day threshold for a designated project … Confirmation was received from the CEAA on December 12, 2018" (Draft Application Information Requirements, p19). A mine that produces at the ceiling (825 ktpa / 365 d = 2,260 tpd) sits ~24% below the trigger. Any later ramp-up to 1.35 Mtpa (≈ 3,700 tpd) would cross it; the project today is reviewed by BC alone, not Canada.

"Mine life ~25 years" ends; the acid-rock liability does not. The Working Group record states plainly: "acid rock drainages, groundwater seepage into the tailing ponds, increase towards the end of mine life or waste accumulation continues for centuries … The modeling takes you 78 years but there is [more]" (WG Meeting Minutes, June 2022). The post-closure water-treatment and PAG-pond maintenance obligations are a geological-timescale commitment the 25-year headline does not disclose.

"Positive legacy" and the active-treatment contradiction. The billboard's pledge to "meet environmental requirements" implies walk-away closure. The record names ongoing engineering: "Organic carbon addition to the covered management ponds post closure to create reducing conditions to decrease selenium mobility. Discharging to the Telkwa River instead to Goathorn Creek. Active water treatment plant of water collected in manageme[nt ponds]" (Water and Load Balance Modelling (App1.0-Ea), p127). The question — who runs and funds that treatment plant after Bathurst is gone — is not addressed on the billboard.

"110+ local jobs" is capped by TCL's own skills caveat. From the Social and Economic chapter: "The Project intends to hire a local workforce as far as possible; however, based on the skills required to fill all positions, and the skills available amon[gst the local workforce], [some positions will be filled externally]" (06.3 Infrastructure & Services, p70). The direct-employment chapter concedes "indirect or induced jobs will likely be generated outside of the RSA due to the Project’s modular design" (06.1 Demographics, p32). The 110-direct / 220-indirect figures are gross forecasts, not Smithers-and-Telkwa guarantees.

"1.2 trains per week" is high by comparator standards. Public submissions filed with the EAO flagged other coal mines of comparable scale: a 500,000 tpa operation 1.5 km from a housing subdivision runs "1 Train Every 2 Weeks" (Public comment: comparator-mine presentation, slide 7). Tenas plans ten times that frequency (1.2 per week ≈ 5× per month, vs. 2× per month) on 55% more annual tonnage. Each train is 116 cars (~12,500 tonnes) plus 3 locomotives through a loadout that lies in Laksilyu Clan territory above the Bulkley River.

"2026 Permitting · 2027 Construction" is the proponent's timeline, not the EAO's. As of July 2026 TCL was still responding to the EAO's Overall Final Water IR (Overall Final Water IR, Part 2, July 2026). Water-model issues (notably selenium prediction, flagged p113) have not been resolved. The timeline printed in 2022 for an open-house is a sales projection; the regulator has not endorsed it.

"EAO seeks consensus with participating First Nations throughout the process" names the policy, not the result. The caption describes the EAO's procedural obligation under BEAA 2018. It does not say whether consensus has been achieved with the Office of the Wet’suwet’en, nor whether OW endorses the Project. OW's record on Tenas is captured in TCL's own Section 25 IR response — read it alongside the slogan.

Read next.

• App04.4-A Groundwater Technical / Hydrogeology Report, p4 — the application's own introduction (production range, mine life).
• Northwest Institute submission — the 1.35 Mtpa gap, economic review, closure-liability concerns.
• EAO Scoping Document — the CEAA 2012 threshold rationale.
• Working Group Issues Tracker, April 2023 — centuries-scale closure concerns.
• 05.1 Socio-Economic — local-hire caveats, skill-gap language.
• Overall Final Water IR, Part 2 (July 2026) — what the EAO is still waiting for.

The footprint on the map is larger than the number quoted on the previous billboard. Independent analysis filed as a public submission measures Mine footprint = 1,458 ha and Road and Rail loadout = 395 ha, for a total disturbance of about 1,853 ha (M. Hite — Map of mine area and road with disturbance zone). The headline "~1,050 ha" on the Project Key Facts billboard excludes the Access Corridor, rail loadout, and quarries that are drawn here. The number people are asked to react to is not the number they are being asked to live with.

Three "management ponds" are PAG impoundments, not amenity water. The North, West, and East Management Pond labels on the map correspond to the three permanent dams that store Potentially Acid Generating (PAG) rock under water cover, as described on the Acid Rock Drainage billboard. The neutral labelling here says nothing about what they hold or how long the dams must be maintained.

"End Pit Lakes" is a water-management feature, not a landscape amenity. The water-balance appendix is explicit: at closure the open pit is "replaced by the end pit lake and saturated backfill components" (Water and Load Balance Modelling, p57). The end pit lake receives groundwater and surface water that have been in contact with mined rock. It is held, not swum in, in perpetuity.

The "Discharge Path" is one of several planned discharge routes, not the only one. The Jan 2019 Aquatics sub-Working Group meeting notes record: "Surface water compliance nodes would be located in the Telkwa River, the Bulkley River, and Goathorn Creek, where project discharges are proposed to occur" (Aquatics sub-WG Meeting Notes, Jan 30 2019, p3). The billboard draws a single arrow north-west to the Telkwa River; the record describes a system with multiple compliance nodes across three receiving environments.

Tenas Creek runs through the project — and drains a third of the Goathorn watershed. The proponent's own fish report: "Tenas Creek is a tributary of Goathorn Creek and drains approximately 1/3 of the total Goathorn Creek watershed … It runs south-west to north-east along the west side of the project, located directly adjacent to the Project footprint" (Tenas Coal Fish Final Report, p7). The map shows Tenas Creek skirting the Open Pit Backfill polygon; what it does not show is that water, sediment, and selenium that enter Tenas Creek enter Goathorn Creek below the Project.

Permanent loss of fish habitat is forecast, not possible. The Fish and Fish Habitat chapter admits the direct consequence: "Where permanent loss of fish habitat productivity is anticipated (i.e., infilling of watercourses, watercourse diversions that eliminate stream habitat within the mine footprint), residual effects of construction activities are predicted to occur" (04.6 Fish and Fish Habitat, p84). The EAO's own presentation summarises the trade: "Changes in fish habitat are expected to arise from the diversion of water currently conveyed in tributaries to Tenas and Four Creeks" (EAO Application Review presentation, p13). The map does not mark which tributaries are to be infilled.

Rail-loadout vibration meets Telkwa townsite. The loadout polygon on the map is immediately across the Bulkley River from Telkwa. The Air Quality chapter concedes: "Ground-borne vibration from the Project may be transmitted by blasting or by rail operations at the Rail Loop" (04.1 Atmospheric, p62). Vibration was "screened out as a subcomponent in the Valued Components Scoping Document" and treated only "as a matter of community interest" (13.02 Air Quality Management Plan, p23) — it is not a Valued Component with a significance determination.

The project overlaps Agricultural Land Reserve and rangeland. From TCL's 2018 Project Description: "Figure 19 identifies Agricultural Land Reserves overlapping part of the dedicated haul road and the rail load out. The Mine site overlaps one range tenure (RAN077588) … the proposed dedicated haul route overlaps two range tenures" (Tenas Project Description, Nov 2018, p80). The ALR and range-tenure overlays are not drawn on this billboard.

The map omits where people live, and the disturbance buffer that would show them. The "Private Properties" tan shading surrounds the Project Area along Aveling Coalmine Road, Telkwa Coalmine Road, and the Access Corridor, but individual residences are not drawn. The record uses a 500 m buffer around infrastructure for habitat-disturbance assessment: "the habitat disturbance model provided in the Wildlife Baseline Report (Appendix 4.8-A) considered the combined direct loss and indirect alteration of habitat (collectively referred to as habitat disturbance) within each Caribou study area by using the actual footprint and a 500 m buffer around the exis[ting infrastructure]" (WG Issues Tracking Table, ECCC comment #416). An independent public submission applies a wider 4 km disturbance zone around the mine, road, and loadout (Hite — Map of mine area with disturbance zone). The billboard draws neither.

Read next.

• Tenas Project Description (Nov 2018) — ALR, range-tenure, and footprint-boundary overlaps.
• Hite public submission — disturbance-zone map — the 1,853-ha total measured independently.
• Tenas Coal Fish Final Report (May 2022) — Tenas Creek drainage, baseline fish surveys.
• 04.6 Fish and Fish Habitat (Application chapter) — permanent-loss language and offsetting.
• App1.0-Ea Water and Load Balance Modelling — end-pit-lake definition and selenium behaviour.
• The valley map — pan the layout against hydrology and terrain yourself.

"163" is the direct TCL headcount, not the total project employment number. TCL's own Section 25 IR response states: "The EAC Application predicts up to 295.8 direct, 230.1 indirect, and 129.8 induced jobs (full-time equivalent) during the Construction phase of the Project … and up to 165.9 direct, 135.8 indirect, and 53.9 induced jobs during the Operation" (Section 25 IR response, p75). Operation phase total = 355.6 FTE across all three categories. Construction phase total = 655.7 FTE. The 163 on this table is the inside-the-gate number; the regional labour-market effect is roughly twice that during Operation and four times that during Construction.

"Indigenous employment targets to be developed" — TCL already predicts they will be missed. From the Labour Market chapter: "[hiring from a local Indigenous workforce without the required skills] often implies that lower employment targets for Indigenous workers are achieved than desired" (05.1 Labour Market, p72). The bullet-pointed commitment is to develop targets; the chapter concedes in advance that targets, once developed, will underperform.

"Exploring what ownership could mean" is a word-for-word non-commitment. No percentage of equity is offered. No draft term sheet is cited. No timeline is given beyond "when it could move forward." Comparable BC mining projects involving First Nations ownership — Haisla equity in LNG Canada's expansion, Nisga'a share in the PRGT pipeline — contain specific percentage holdings and governance structures. "Exploring" is a word for a conversation that may not conclude.

"Witset Nation" names one elected Band Council, not the Wet’suwet’en Hereditary system. Witset Nation is the elected government under the Indian Act (11.0 Wet’suwet’en Part C, p12). The Office of the Wet’suwet’en (OW), representing the five Hereditary Clans, is the body that holds Hereditary title under Delgamuukw v. British Columbia; it is not named on the Equity & Governance panel. The App01.0-AH Comparison of Conuma to Telkwa notes OW's request to be involved in environmental management plans — see also App11.0-A Cultural Use Study, p40.

"Environmental Guardians" maps to a commitment that is itself undefined. The application's own commitment list reads: "Develop an Indigenous-led Monitoring program(s)" (06.4 Land and Resource Use, p84; also 01.0 Overview Part A, p120). "Develop" has no budget, no scope, no governance, no reporting line to the Office of the Wet’suwet’en, and no deadline attached. The billboard listing it as a "Program" implies it exists; the application still calls it a plan to make a plan.

The social-cost side of a rotational mining workforce is in TCL's own chapter. From Community Well-Being: "Indigenous communities are particularly vulnerable to increased wages and rotational schedule, exacerbating social issues such as drinking and drug misuse. The Construction Phase is of short duration (1.5 years, with some [extension])" (06.5 Community Well-Being, p58). The 7 days on / 7 days off rotation listed on this billboard is one of the mechanisms by which that social harm is predicted.

163 new workers compete with existing residents for housing. From Infrastructure & Services: "Population growth resulting from workforce hiring during the Construction Phase could increase demand on short-term accommodation and rental housing, potentially resulting in decreased access to housing and accommodation, and increased housing and rental costs" (06.3 Infrastructure and Services, p51). The Housing and Accommodation Program (13.16 Socio-Economic Management Plan, p23) is TCL's acknowledgement that the project pushes on local rents and short-term rental supply.

7 days on / 7 days off is a camp rotation, not a residential one. The most common schedule in the table applies to equipment operators and mine support — the largest headcount category. That rotation is designed for fly-in / fly-out workers who travel to site, not for local commuters. The "local employment" framing on the Key Facts billboard (110+ "direct local") assumes a worker base willing and able to take that schedule; the mine runs 365 days a year, so the rotation is non-negotiable.

Procurement contracts are listed, not committed. The twelve bullets under "Contracts" describe categories of work TCL may contract out. Dollar values, award mechanisms, Indigenous business set-asides, and competitive-bid thresholds are not stated. A list of possible contracts is not a procurement commitment.

Read next.

• Section 25 IR response (p75) — the actual EAC job numbers in all three categories.
• 05.1 Labour Market (p72) — Indigenous-hiring shortfall language.
• 06.5 Community Well-Being (p58) — rotation-schedule and social-cost predictions.
• 06.3 Infrastructure and Services (p51) — housing-pressure effects.
• 06.4 Land and Resource Use (p84) — the actual Indigenous-led monitoring commitment.
• App01.0-AH Comparison of Conuma to Telkwa — OW's request for involvement in management plans.

The "strip ratio 3.6" number is the chosen pit, not the range the application explored. From Overview Part F: "optimized open pit shells were generated representing incremental strip ratio open pits from a low of 1.5 BCM/tonne up to a high of 10 BCM/tonne" (Overview Part F, p8). The 3.6 figure is one point on that curve. If the chosen pit later needs to be extended under revised economics, the ratio rises — more rock moved per tonne of coal shipped, more PAG stored, more fuel burned per unit of product.

"4,000,000 to 9,000,000 BCM/year" is a 2.25× range. At the upper end, the mine moves 50% more rock than at the lower end — more truck trips, more blast events, more dust, more diesel. The billboard does not say which years fall at the upper end or under what conditions the mine operates there. The Mine Plan appendix (App13.9-I Mine Plan) and Overview Part D (Overview Part D, p34) carry the year-by-year material-balance schedules.

"Only Processed Coal is removed" is a true sentence that inverts the proportions. The billboard’s own numbers put total annual material movement at 4,000,000 to 9,000,000 BCM, while annual coal production is 775,000 to 825,000 tonnes; the great majority of what is dug and blasted stays in the project area in perpetuity — non-PAG rock as backfill and buttress, PAG rock submerged in the management ponds, surface soils stockpiled for reclamation, process-plant tailings, and water-treatment sludge. The claim is about what is sold, not what remains.

Dams and buttresses are built from the same material class that failed at Mount Polley. Step 2 states overburden ("glacial sediment overlaying the bedrock … Other common words are Till, Glacial Till, or Unconsolidated Material") is used to build the dams. TCL's own Accidents and Malfunctions chapter summarises the Mount Polley failure: "Review of the failure of the Mount Polley embankment identified the causes as excessive surface water storage, geometry of the embankment (steepness) and inadequate consideration of the strength of the [glacial till]" (09.0 Accidents and Malfunctions, p25). The dams at Tenas are intended to hold PAG rock under water in perpetuity; the structural material class is the one that failed in 2014.

The Mount Polley expert panel recommended a BC-wide cap and BAT mandate; neither was adopted. From Northern Confluence Initiative's public submission on the Draft AIR: "The Mount Polley expert report estimated that there would be a risk of tailings failures twice every decade if the current inventory of tailings dams wasn't reduced by half and Best Available Technologies and Practices wasn't mandated. Neither of these have happened and a catastrophic event like Mou[nt Polley]…" (NCI dAIR Public Comment, July 2020, p3). Tenas adds dams to the BC inventory within the risk envelope that recommendation was meant to shrink.

"Progressive reclamation" is theoretical here. The Working Group record describes it in the subjunctive: "progressive reclamation could include placing of surface soils and revegetating construction or operations roads and mine rock or overburden piles that are no longer needed" (WG Issues Tracking Table Round 2 (Dec 2022)). The billboard's eighth step shows a fully-reclaimed landform; neither this billboard nor the application commits to a hectares-per-year reclamation rate indexed to mining rate. Back-loaded reclamation that depends on an operator's end-of-life financial health is the industry's standard failure mode.

"Native and non-native vegetation species" is a lower-reclamation-standard commitment. Step 8 names both. Non-native agronomic species are chosen for ability to grow on disturbed substrate; they do not recover the pre-mining coniferous-forest ecology that supplied the carbon-sink and wildlife-habitat baselines. The 25-year mine life closes with a landform; it does not close with the forest that was there before.

Forest removal carries a measured carbon-sink loss. From the Section 25 IR response: "Over the 25-year life of mine, the Tenas Project is estimated to result in a maximum loss of approximately 295,516 tCO₂e due to the re[moval of carbon sinks]" (Section 25 IR response, p24). That is only the land-use change; it is in addition to combustion emissions downstream of the sold product.

"Mine life ~25 years" ends before the closure obligation does. The June 2022 Working Group meeting notes record: acid-rock drainage and groundwater seepage "increase towards the end of mine life or waste accumulation continues for centuries" (WG Meeting Minutes, June 23 2022, p23). "Construction to completion of reclamation" ends at the landform; the water-treatment and dam-maintenance obligation runs much longer. See also the Acid Rock Drainage billboard.

"Telkwa Mining Limited" is one name on the lease; the equity partners are two. The application's own introduction: "TCL is a joint venture partnership of Allegiance Coal Limited (ACL) and the Itochu Corporation. ACL is a publicly listed company on the Australia stock exchange (ASX: AHQ) with headquarters in Sydney, Australia" (Overview Part A, p70; also Aug 30 2021 Indigenous Consultation Plan, p6). Allegiance was subsequently acquired by Bathurst Resources Limited (NZ). ITOCHU is a Tokyo-headquartered trading house. The question "who is accountable in year 150" is a question about which legal entity remains and which jurisdiction enforces.

Read next.

• Overview Part F (p8) — strip-ratio sensitivity across optimised pit shells.
• Overview Part D (p34) — year-by-year material-movement schedule.
• 09.0 Accidents and Malfunctions (p25) — proponent's own Mount Polley summary.
• NCI dAIR Public Comment (July 2020) — the policy context on BC tailings-dam risk.
• Section 25 IR response (p24) — carbon-sink loss over mine life.
• App13.9-I Mine Plan — mining sequence, rates, and schedules.

The disclaimer is the most honest sentence on the billboard. "Buildings are shown for illustrative purposes only, and actual buildings constructed may not be as shown" means the photos on this panel do not commit the proponent to any specific scale, material, siting, or appearance. A reader who thinks they are looking at the mine as it will be built is looking at stock photographs of buildings the proponent likes.

The infrastructure not pictured matters more than the eight that are. The record names, among others:

• Explosive Facility holding up to 50,000 kg of Ammonium Nitrate Fuel Oil (ANFO) plus Ammonium Nitrate Emulsion (ANE) and packaged explosives (13.03 Chemicals and Materials Management Plan, p12; 13.06 Explosives Management Plan, p28). The billboard has no photograph of the magazine.
• Methyl Isobutyl Carbinol (MIBC), a flotation reagent used in coal processing, stored in 20,000-litre quantities at the Process Reagent Storage Facility (13.03 Chemicals and Materials Management Plan, p12). MIBC is flammable and an inhalation hazard.
• Diesel and lubricant deliveries arrive via the Tenas Access Corridor by Super B-train tanker (Overview Part H, p46). The two "Open Pit Fueling Station" labels on the billboard are the delivery destinations; the delivery route (two to four truck round-trips per hour down the TAC, as summarised on the Key Facts billboard) is not pictured.

"Decommissioning in mind … relocation and/or disassembly" applies to the easy half. Portable site trailers and warehouse buildings may indeed be disassembled and trucked out at closure. The Coal Processing Plant, the Crusher, and the three Management Pond dams are the opposite — poured concrete, deep foundations, and permanent earthworks on glacial till (App01.0-O Foundation Assessment, p11). The Reclamation and Closure Plan in Overview Part K, p14 describes the staged removal; what cannot be removed is the pit, the landform, and the dams.

"Existing or commonly used designs" is a cost choice, not a site-fit choice. The Bulkley Valley has snow-load, winter-cold, seismic and wildfire exposure specific to interior BC. "Simple and cost effective" infrastructure is a procurement-first principle; the application's Foundation Assessment (App01.0-O, p11) notes background information was "generally preliminary and/or pre-feasibility in nature" — the engineering is at the stock-design stage, not at a site-engineered one.

The CPP is the real throughput number on this site. The Coal Processing Plant capacity table in Overview Part G, p71 (CPP Capacity and Operating Data) carries the actual design throughput; the July 2026 Overall Final Water IR describes it as "a maximum production rate of 2,500 tonnes of processed coal per day" (Overall Final Water IR, Part 7, p1092). The illustrative photograph of a plant interior gives no sense of that scale.

The same IR response quietly revises the mine life downwards. The July 2026 passage reads: "life of mine of about 21 years at a maximum production rate of 2,500 tonnes of processed coal per day" (Overall Final Water IR, Part 7, p1092). The "~25 years" on the Key Facts billboard includes construction + decommissioning; the operational mine life is 21 years. Infrastructure is sized to that figure, not the headline.

"Businesses based in the Bulkley Valley will be invited to bid" is a bidding invitation, not a procurement commitment. It mirrors the procurement bullet-list on the Project Benefits billboard. Dollar values, Indigenous business set-aside thresholds, and award mechanisms are not stated. The spill-response trailer and other emergency-response equipment described in 13.07 Fuel Management and Spill Plan, p28 is one of the categories listed for competitive bid; the plan itself does not commit to a local supplier.

What spill risk looks like, in TCL's own language. From the Groundwater chapter: "Accidental spills have the potential to affect surface water and groundwater quality. The potential for spills and spatial extent of spills will be minimized by implementing a spill response plan" (04.4 Groundwater, p46). Fuel, lubricant, process reagent (MIBC), and explosive materials are all stored on the pad shown here; a response plan is the stated mitigation, not a design-out of the hazard.

Read next.

• Overview Part G, p71 — CPP capacity and operating data.
• 13.06 Explosives Management Plan, p28 — ANFO/ANE storage design.
• 13.03 Chemicals and Materials Management Plan, p12 — reagent and chemical inventory.
• 13.07 Fuel Management and Spill Plan, p28 — spill-response equipment.
• Overview Part K, p14 — Reclamation and Closure Plan (staged building removal).
• Overall Final Water IR (July 2026), Part 7, p1092 — the 21-year operational life.

The billboard says 118 culverts; it does not say how often trucks cross them. From the Accidents and Malfunctions chapter: "Substantial traffic is anticipated on the TAC (approximately 16 km). It is estimated that between four (4) and eight (8) trucks per hour, seven (7) days a week, 24 hours per day will be required to deliver the processed coal between the CPP and the Rail Infrastructure location to meet the annual pro[duction target]" (09.0 Accidents and Malfunctions, p60). That is 35,000 to 70,000 processed-coal truck round-trips per year across those 118 culverts and nine bridges, before fuel, supply, and crew traffic.

The TAC frequency on this billboard's source chapter is higher than the 2–4/hour on the Key Facts billboard. Key Facts says "2–4 trucks will depart and return to the mine site each hour." Accidents and Malfunctions says 4–8 trucks per hour on the TAC. The TAC also carries fuel-delivery Super B-trains (described on the Infrastructure billboard) and employee / contractor traffic that is not in either count.

"Designed for the 1-in-200-year flood event" is a design-climate figure, not an operating-climate figure. The 1-in-200-year return period is calculated from historical streamflow records. Interior-BC projections (warming, atmospheric-river events, more rain-on-snow) are shifting those return periods toward the present. A culvert designed for a historical 200-year event may not meet that return period over the operational 21–25-year mine life, let alone over the centuries-scale closure period. The billboard does not mention climate-adaptation margin.

Once the road enters TCL property, MOTI jurisdiction ends. From the Working Group Issues Tracking Table: "the Telkwa Coalmine Road ending at TCL's private property as such the road beyond TCL's private property is outside of MOTI's jurisdiction. However, for information the public underpass is underneath the TCL's private road and will be constructed and maintained by TCL" (WG Issues Tracking Table, Apr 2024). Culvert sizing, bridge inspections, fence maintenance, and winter-driving conditions on the private portion are TCL's standards and TCL's regulator relationship, not the provincial highway system's.

"8% maximum grade" is steep for a loaded coal truck. Highways in BC Classes 1 and 2 target maximum grades of about 6–7% on major routes. 8% on a resource road, in winter, carrying a 110-tonne dynamic load, with engine-braking requirements on descent, is a safety case the Accidents and Malfunctions chapter (09.0 Accidents and Malfunctions, p60) treats under truck-rollover and traffic-incident scenarios. The billboard presents the grade as a specification; the risk is addressed elsewhere.

118 culverts also means 118 fish-passage decisions. The Fish and Fish Habitat baseline (Tenas Baseline Report, p210) and the Fish and Fish Habitat chapter already cited on the Site Plan billboard cover crossing design for salmonid passage. "Corrugated steel pipe" is cheap and robust, but the smallest culvert diameter on the billboard (500 mm) is below the DFO fish-stream-crossing design guidance for streams that support fish; the choice between pipe-arch, open-bottom, or embedded-pipe designs is a fish-passage choice, not a hydraulic one.

"Follows the 500 kV powerline for 2 km" is the one solid design choice on this billboard. Co-locating a new linear corridor with an existing one is standard best practice: less new vegetation clearing, less new habitat fragmentation. The equivalent commitment for the first ~8 km of the TAC — the FSR + TML private road segment — is weaker, because the TAC widens and upgrades existing resource roads to coal-truck standard rather than overlaying them.

The Bypass "drove by community feedback" closes a route the proponent did not want either. Routing coal trucks down the existing Telkwa Coal Mine Road through the village was infeasible for TCL on grade, bridge-weight, and traffic-volume grounds independent of community feedback. The Bypass was a practical necessity dressed as a listening commitment.

Horse Crossing and Telkwa Coalmine Recreation Camp are existing uses on the ground. The gates and crossings itemised under "Public Access" are TCL's mitigation for a road that bisects pre-existing recreation and ranching patterns. The underlying displacement (loss of casual access, gate times tied to mine schedule, altered horse and livestock routes) is managed by gates, not undone by them.

Lawson Road at 7 km from Telkwa is still inside the valley's residential arc. The App06.3-A Traffic Study benchmarks Highway 16 counts; it does not quantify the daily light-vehicle count on Lawson Road itself, where the TAC emerges and feeds into the rail-loop traffic. Residents along Lawson Road are closer to the new corridor than the "7 km from Telkwa" headline suggests.

Read next.

• 09.0 Accidents and Malfunctions, p60 — the 4–8 trucks/hour, 24/7 figure and the TAC risk scenarios.
• App06.3-A Traffic Study — Highway 16 traffic context.
• WG Issues Tracking Table — the MOTI-jurisdiction boundary at the TCL property line.
• Tenas Baseline Report (fish) — the fish-stream inventory the 118 culverts cross.
• The valley map — pan the TAC alignment against hydrology and residences yourself.

The "chemical agent" has a name — in fact two — and the billboard doesn't use either. The topping agent is "a dust binder chemical solution (APS2 or equivalent) … applied to the rail cars after filling to effectively seal the top layer of coal and mitigate fugitive dust emissions during the journey to port" (Overview Part I, p33). The winter release agent is "Flopolymer H44W (or equivalent) … a cold-weather dust suppressant/release agent designed for road, conveyor belt, coal truck, and coal car applications. The product has a freeze point of -36 C … Flopolymer H44W is a vegetable-derived product" (App01.0-N CPP Technical Information, p168). Named chemicals have Material Safety Data Sheets; "chemical agent" does not.

Covering the cars was proposed by regulators and declined. From the Working Group Issues Tracking Table, comment #244 (ENV — Air Quality, 2022-06-09): "Would it be feasible to cover the cars as well?" (WG Issues Tracking Table Round 2). TCL's mitigation is a chemical crust on the surface of each car; the alternative (physical covers over the open-top cars) is not adopted. Covers eliminate fugitive dust in transit; a chemical crust reduces it, variably with weather and handling.

12,000–24,000 m³ of groundwater per year goes into car-topping and dust management. From Overview Part I: "An existing groundwater well at the Rail Infrastructure will provide extra water required for the rail car topping agent system, rail car side release system, and the dust management system. Approximately 12,000 to 24,000 m³ of water per annum will be required" (Overview Part I, p34). Water that passes through the loading pad becomes rail-loop washdown, routed to the Sedimentation Pond and then released to the Bulkley River.

Sedimentation Pond discharge is to the Bulkley River — a salmon-bearing watercourse. The Bulkley carries wild Skeena-system salmon, steelhead, and bull trout. The billboard says water is "collected and sediments are settled" before release; it does not say what concentration of fine coal particulates, dissolved coal-origin metals, or residual APS2 / Flopolymer remains after settling. The Overall Final Water IR Part 2 treats the Bulkley River as a receiving environment with specific long-term water-quality guidelines; the sedimentation-pond effluent must meet those.

"Approximately one train per week" is a 2-km-long train each time, through communities that did not opt in. 116 cars at ~17.5 m each + 3 locomotives ≈ 2 km of train. That train travels the CN main line from the Telkwa loop west through Smithers, Terrace, and on to Prince Rupert, 62–66 times per year. Each loaded car has an APS2 crust on top. The communities along the rail corridor are not consulted on the open-house billboards. Rail-corridor fugitive-dust effects are not scoped as a Valued Component of this Environmental Assessment.

Numbers consistent, but with the familiar range caveat. 116 cars × 108 t = 12,528 t/train. 62 × 12,528 = 776,736 t and 66 × 12,528 = 826,848 t, bracketing the 775,000–825,000 tpa headline. If annual production rises (see the ramp-to-1.35 Mtpa concern on the Key Facts billboard), train frequency scales linearly: 1.35 Mt / 12,528 t/train ≈ 108 trains per year, more than 2 per week.

"Maximum Curve of 8%" is an unusual way to specify rail curvature. Rail-loop curvature is typically expressed as a radius or as degrees of arc per unit chord length, not as a percentage; the billboard's "8%" caption invites the reader to compare it to the 0.3% grade on the same line, but the two numbers are not in the same units. "Maximum Grade of 0.3%" is a correct and standard rail-grade specification — the loading loop is deliberately flat so that unweighted cars will not roll.

Ridley Terminals carries the port-side story, which is not on this billboard. "The product coal produced by the Tenas Project will be loaded at Ridley Terminals in Prince Rupert. Ridley Terminals will be responsible for unloading, stockpiling, loading of vessels and stockpile surveys" (App01.0-N CPP Technical Information, p104). Dust emissions, stormwater runoff, and marine shipping emissions at the port terminal are the next-stage question; this billboard treats "to Prince Rupert" as the end of the process.

Mine-life numbers do not match across proponent documents. The EAO Application Review presentation records a mine life of "approximately 26.5 years" (EAO Application Review presentation, p3); the Key Facts billboard says "~25 years"; the July 2026 Water IR response (cited on the Infrastructure billboard) describes "life of mine of about 21 years." The train-count arithmetic on this billboard assumes 25 operational years; a 21-year operational life compresses the shipments.

The powerline detail is unremarkable, and that is the point. A 3.6 km, 25 kV, 67-pole BC-Hydro-standard distribution feeder serving a 4,000 kVA load is routine small-industry infrastructure. The dust, noise, discharge, and traffic items on this billboard's left-hand columns do more work; the powerline column is a cost-and-permitting checklist, not an impact one.

Read next.

• Overview Part I, p33 — APS2 dust-binder specification.
• App01.0-N CPP Technical Information, p168 — Flopolymer H44W specification.
• Overview Part I, p34 — rail-loop water usage figure.
• WG Issues Tracking Table Round 2 — the "cover the cars" question (comment #244).
• 04.1 Atmospheric, p64 — transport-phase air-quality mitigations.
• App01.0-N CPP Technical Information, p104 — Ridley Terminals handoff.

"No new exceedances" is a specific regulatory term; it does not mean "no worse." The billboard concedes background PM already exceeds BC objectives up to 8% of the time (roughly 29 days per year). The Project then adds a "measurable" increment on top of that background. On a day when background PM is below the objective, the Project increment does not push it over; on a day when background PM is already over, the Project increment pushes it further over. "No new exceedances" means TCL does not create fresh exceedance days; it does not mean the air is as clean as it was.

The dustfall standard the billboard compares against was rescinded. "Occasionally exceeding the rescinded BC provincial objectives for existing conditions" is doing careful work: BC rescinded the Pollution Control Objective for dustfall, so there is no current regulatory ceiling to exceed. The sentence tells a reader "we are already dustier than the standard that used to exist," then relies on the standard being gone to avoid saying what that means.

At the maximum predicted receptor, PM₁₀ rises 67% above background. Background PM₁₀ 15.2 → Project PM₁₀ 25.4 µg/m³ is a +67% increment. Background PM_2.5 10.2 → Project PM_2.5 12.1 is a +19% increment. Both remain below the BC guideline, but the BC PM_2.5 objective (25 µg/m³ 24-hour) is 2.5× the current World Health Organization guideline (10 µg/m³ 24-hour, updated 2021 to still-tighter values). Under the WHO guideline, the predicted project-case PM_2.5 would exceed.

The map shows three receptors; the model uses seventy-six. The Human Health Risk Assessment states: "Air quality receptor locations included soil and vegetation sampling sites within the LSA, rural residences closest to the Project and within Telkwa (n = 76) and sensitive receptor locations in Telkwa, such as the Telkwa Elementary School, the Ark Playday Centre, and the Tot Spot Family Day Care" (App08.0-A HHRA, p39). Children's receptors are modelled; children's receptors are not labelled on this billboard.

The "stove swap" program is a creative way to meet the "no new exceedances" test. "To partially offset any potential regional air quality effects associated with the Project, TCL intends to provide a funding program to assist personnel to replace their wood or oil burning stoves with alternative lower emission or higher efficiency heating systems" (08.1 Human Health, p62). The arithmetic: Project adds PM; stove swap removes PM; net stays below the guideline. In effect the mine is permitted on the condition that it buys down a background source. The policy question — who gets a stove swap, who does not, and what if uptake is lower than modelled — is not shown.

Trucks get covers; rail cars get a chemical crust. Mitigation bullet 3 commits to "Cover super B-train trucks when hauling processed coal from Coal Processing Plant to Rail Infrastructure." But on the Rail & Powerline billboard, the regulator asked whether rail cars could also be covered, and TCL answered no — the mitigation there is the APS2 / Flopolymer H44W topping agent. Trucks pass through residential terrain for ~16 km of the TAC; rail cars pass through hundreds of kilometres of CN main line including Smithers, Houston, Terrace. The decision about which journey gets a physical cover is a cost choice, not a dust-exposure choice.

"Best management blasting techniques" is a phrase, not a specification. Blast events release PM, NOx, and SOx; blast fume (orange NO₂) is the visible marker. The Atmospheric chapter table (04.1 Atmospheric, p50) gives the modelled values, but the billboard does not quote any blast-event emission numbers; "BMPs" is the summary.

The modelling methodology is standard; the inputs decide the result. "The Air Quality modelling methodology, including the selection of sensitive receptors, follows the British Columbia Air Quality Dispersion Modelling Guideline (BC MECCS 2015) as well as a model plan submitted to and approved by the BC MECCS. Sensitive receptors were defined at locations…" (04.1 Atmospheric, p49). The methodology is uncontroversial; the question is whether the assumed emission factors (haul-road re-entrainment, blast frequency, equipment Tier, truck Tier) match operations once the mine is running.

"Natural air emissions, wind-blown dust" is baseline framing that obscures what the mine itself adds. Open pit mining converts vegetated, snow-covered ground into exposed topsoil stockpiles, waste-rock piles, haul roads, and pit walls — all large new sources of wind-blown dust. The baseline described is partly the pre-project baseline and partly the baseline after mine construction has created new wind-exposed surfaces. The two are not separated on the billboard.

Dustfall deposition on nearby ranches is a different exposure pathway from inhalable PM. Dustfall settles on vegetation, livestock drinking water, and residential surfaces. The HHRA Table 4.5-11 for Total Suspended Particulate at Residence (App08.0-A HHRA, p43) carries the project+background dustfall numbers at residential receptors. The billboard's map shows contours; the health-pathway consequences (soil deposition, crop uptake, livestock) are addressed in the HHRA, not on the open-house panel.

Read next.

• 04.1 Atmospheric (chapter) — the full air-quality chapter, including the Mitigation Measures table.
• 04.1 Atmospheric, p50 — CAC prediction tables.
• 08.1 Human Health, p62 — stove-swap mitigation language.
• 08.1 Human Health, p69 — concentration ratios at receptor locations in Telkwa.
• App08.0-A HHRA, p39 — the full receptor list (76 residences, three children's receptors in Telkwa).

The bar chart hides the honest number in a star-footnote at the bottom. "Max noise level 250 meters from minesite boundary" sits at 80 dBA on the comparison ladder — road-traffic level, 24 hours a day, 365 days a year. The bar chart compares receptor levels (35.8 dBA daytime, 24.1 dBA nighttime) to the BC Permissible Sound Level, and gets a result that is almost indistinguishable from background. The star footnote is the number anyone on nearby ranchland lives with.

Blast events do not fit the continuous-noise model, and the record admits it. From TCL's response to the Wet'suwet'en Members' Information and Oversight Vehicle (WMIOV): "Based on the current analysis, the maximum noise levels may exceed the target daytime noise level of 55 dBA up to 2 km from the blast site. Maximum noise levels may exceed the cautionary limit of 120 dBL up to 1 km from the blast site" (WMIOV Response, Air and Noise, Mar 2025, p29). The billboard shows no blast-event line on either the contour map or the bar chart; the modelled impulse-noise envelope reaches residents in nearby valleys.

Vibration claims are qualitative, and the Wet'suwet'en members' review called that out. From the same WMIOV document: "Section 5.2.4 Potential Project Related Effects: Vibration states that vibration 'may be transmitted by blasting operations,' but do not elaborate on specific measurements. They continue to state that effects from blasting 'are expected to be limited,' with no scientific meas[urements provided]" (WMIOV Response, Air and Noise, Mar 2025, p19). The air-overpressure assessment uses the empirical Linehan-and-Wiss (1980) formula (TML Letter to EAO, Caribou Meeting Response, Jan 2026, p134) but the billboard shows no peak-particle-velocity or air-blast prediction.

"Beyond the Project Footprint" is the operative qualifier. The Residual Effects sentence reads "Project-related vibration effects from blasting and rail operations will be below BC provincial objectives beyond the Project Footprint." Inside the Project Footprint — which includes the Access Corridor, Rail Infrastructure, and the loop's road crossings — vibration can and will exceed BC objectives. The qualifier draws the line at TCL's property boundary, not at where people are.

No whistles on the private rail loop; whistles continue on the CN main line. "Use privately controlled Rail Infrastructure so that there are no train whistles generated from train operations" tells readers near the loadout one true thing: operations inside the TCL-controlled rail loop do not use whistles. The commitment is silent on CN-main-line operations between the loop and Prince Rupert, where the same 62–66 loaded trains per year run on track and signalling that TCL does not control. Residents along the main line hear those trains on the main-line operator's rules, not TCL's.

At the modelled receptor, Project nighttime noise is 24.1 dBA against a 23.1 dBA background — a 1 dBA increment. On the dBA scale, a 3 dBA change equals a doubling of sound power and is roughly the just-noticeable-difference for most listeners. A 1 dBA increment is within modelling uncertainty. The modelled receptor was placed where attenuation across intervening terrain is maximal; the contour map, by contrast, draws a 50 dBA ring well out from the pit at night.

"No new exceedances" is the same regulatory wording as on the air-quality billboard, and does the same work. See the Air Quality billboard: the phrase means TCL does not create fresh exceedance days against BC criteria. It does not mean "no worse"; it does not mean WHO or Health Canada criteria are met; it does not mean the receptor list is complete.

Baseline at S-Rail is 41 dBA day / 38 dBA night because the CN main line is already there. The S-Rail monitor was placed within the proposed Rail Infrastructure, 340 m from CN. Project traffic adding to an already-elevated baseline shows a small increment; the receptor is a difficult place to detect a change. The receptor placement is defensible, but it is also the receptor most favourable to a "small Project contribution" result.

Electronic detonators and noiseless lead lines are concrete good practice. Electronic detonators give millisecond-level timing control, which reduces peak air overpressure by de-synchronising individual charges; noiseless lead lines (electric vs shock-tube) remove the audible-crack ignition signature. These are credible mitigations, well above baseline practice. The limitation is that they shape the blast pulse — they do not eliminate it.

"Adaptive management" is the escape clause. "Monitor actual blast results and implement improvements as required as per the adaptive management process" is the standard language for "we will measure what we are doing and respond if it is worse than modelled." Residents in the up-to-2-km blast-noise and up-to-1-km blast-overpressure zones carry the modelling risk until measurements catch up.

Read next.

• 04.1 Atmospheric, p61 — CadnaA modelling methodology for continuous noise.
• App04.1-A Noise Model Report — full modelling appendix.
• WMIOV Response (Air and Noise), March 2025 — Wet'suwet'en members' critique and TCL's answers.
• TML Letter to EAO re Caribou Meeting Response, Jan 2026, p134 — Linehan-and-Wiss blast-overpressure method.
• 06.3 Infrastructure & Services, p59 — transport-noise mitigation measures (TAC rationale).

Selenium is the parameter most associated with metallurgical-coal mining, and it is nowhere on this billboard. From TCL's July 2026 Overall Final Water IR response: "There is insufficient information to provide an accurate prediction of selenium speciation in the receiving environment using the Water and Load Balance Model (WLBM). Any assumption included to show this in the model would contain significant uncertainty and offer minimal value" (Overall Final Water IR, Part 2, p113). The billboard's Water Quality bullets list aluminum, iron, and copper, which the record describes as already exceeding BC guidelines at baseline; selenium is the one Teck-at-Elk-Valley parameter and TCL told the EAO it cannot be predicted. Omitting it is a choice.

"No new exceedances beyond baseline" is the same regulatory wording as the air-quality and noise billboards. See the Air Quality billboard and the Noise billboard. The three Water Quality bullets admit baseline is already in exceedance for aluminum, iron, and copper on the receiving rivers. The "no new exceedances" sentence does not mean the Project does not add; it means the Project does not create fresh exceedance days against guidelines that are already failing.

"Discharge from Tenas Control Pond to a tributary of Goathorn Creek" means the mine discharges into Goathorn Creek, not just the Telkwa River. The Site Plan billboard draws the "Discharge Path" arrow north-west to the Telkwa River; this billboard's mitigation bullet names the Goathorn Creek discharge. Both routes exist. The Jan 2019 Aquatics sub-Working Group recorded discharge nodes at the Telkwa River, the Bulkley River, and Goathorn Creek (Aquatics sub-WG Meeting Notes, Jan 2019, p3). Tenas Creek carries Project water into Goathorn Creek by drainage even when no pipe is involved, as noted on the Site Plan billboard.

"Limited to within the watersheds of Four and Tenas Creeks" is a drainage statement, not a receiving-environment statement. Tenas Creek drains into Goathorn Creek, which drains into the Bulkley River; Four Creek similarly joins the system. Residual water-quality effects "limited to" Four and Tenas Creeks arrive downstream in Goathorn and ultimately the Bulkley, where the baseline already exceeds guidelines. The Residual Effects bullet is geographically narrow and hydrologically open-ended.

"BC guidelines are some of the most stringent" is a comparison move, not a protection claim. Comparing BC chronic aquatic-life guidelines to Alaska and California selects two jurisdictions. European Union receiving-water quality standards, Washington state marine-discharge limits, and site-specific permits at Teck's Elk Valley mines (which operate within BC's "stringent" standards and still trigger selenium exceedances downstream) are not in the comparison. "Stringent" is not the same as "protective enough" — Elk Valley is the counter-example.

"Chronic BC water quality guidelines for the protection of aquatic life" are a correct choice; the policy question is which fish species the guidelines protect. Chronic (long-term) guidelines are stricter than acute (short-term) and are the right class for discharges to salmon-bearing rivers. The baseline table (App04.1-Ca Tenas 2017-2019 Baseline, p203) carries the per-parameter exceedance history; the record describes one historical selenium exceedance at TOB96-02-20 in 1996.

"Maximize the use of contact water" means a closed-loop system that concentrates contaminants until it must be discharged. Contact water is water that has touched mined rock, coal, or disturbed ground; reusing it reduces fresh-water intake, but every molecule that enters stays in the loop until the loop releases it. The mitigation reduces freshwater draw and increases the dissolved-constituent load on the eventual discharge. The Water Balance Report (App04.3-A Water Balance Report, Part 1, p57) carries the mass balance for both freshwater intake and contact-water circulation.

"Baseline studies 2017 through 2020" is a short baseline for a 21-year operational mine. Four years of baseline against which to detect multi-year climate drift (snowpack decline, atmospheric-river frequency, summer-low-flow extremes) is at the lower end of credible baselines. Historical streamflow records from Water Survey Canada stations on the Bulkley system extend decades back; the Project's 2017–2020 window is the proponent-funded baseline, not the full hydrological record.

Public monitoring via the BC MECCS website is a transparency commitment that depends on TCL continuing to post. The mitigation bullet promises publication of sampling results via the Ministry of Environment and Climate Change Strategy site. The commitment is good; the enforcement is softer — public reporting lapses are a known failure mode in the Elk Valley case (see Northwest Institute summary of the Teck Area-Based Management Plan: Public Comments 1-559 (Nov 2022)).

"Significant adverse Residual effects" is the EAO's highest-impact category. "No significant adverse Residual effects are expected for surface water due to the Project" means the EAO is being asked to accept that water-quality changes (admitted for Four and Tenas Creeks) do not rise to a Significance Determination. The Northwest Institute's submission (Northwest Institute submission) and the NCI dAIR comment (NCI dAIR comment, July 2020) each argue for a stricter closure-liability assessment that this residual-effects conclusion sidesteps.

Read next.

• Overall Final Water IR, Part 2 (p113) — the selenium-speciation-cannot-be-modelled passage.
• App04.3-A Water Balance Report, Part 1 (p57) — contact-water and discharge mass balances.
• Aquatics sub-WG Meeting Notes (Jan 2019, p3) — the three-receiver discharge plan (Telkwa, Bulkley, Goathorn).
• App04.1-Ca Tenas 2017–2019 Baseline, p203 — baseline water-quality tables including the one historical selenium exceedance.
• Northwest Institute submission — economic and closure-liability critique.

Six ponds on the billboard; ten in the record. The Water Management Report describes the project's pond system this way: "There are ten sedimentation ponds at the Tenas Project. Each pond was designed in accordance with the BC Ministry of Environment (BC MOE) Technical Guidance (BC MOE 2015) to settle total suspended sediments and thereby improve water quality at the discharge point" (App01.0-F Water Management Report, Part 2, p24; also 13.11 Minesite Water Management Plan, Part 7, p21). The billboard lists six headline ponds; four smaller sedimentation ponds are omitted from the "Water Movement Onsite" summary.

The mine discharges to at least four receiving environments, not one. The flow diagram shows: Tenas Control Pond via pipeline to Goathorn Creek; CPP Sedimentation Pond "Emergency Discharge" to Four Creek; East Management Pond spillway to Four Creek; Rail Infrastructure Sedimentation Pond to "a dry tributary to the Bulkley River." The Site Plan billboard draws a single arrow to the Telkwa River. The Surface Water billboard says water is discharged to Goathorn Creek via a pipeline. All three descriptions refer to the same system; the system has four discharge points, not one.

"Water for the Project will be sourced from precipitation that falls within the Project Footprint (onsite)" diverts non-contact water that would otherwise reach downstream creeks. The Water Movement Onsite logic — collect contact water into ponds, divert non-contact water around the mine — means precipitation falling on the project footprint no longer flows naturally into Tenas Creek and Four Creek. The Surface Water billboard admits the mechanism explicitly: "The Project is expected to change summer and winter streamflow from baseline conditions in sections of Four and Tenas Creeks." The water is "sourced from precipitation onsite" because downstream creeks lose the share they used to receive.

The minesite "straddling two watersheds" is a water-balance claim with downstream consequences. Four Creek is a tributary of Goathorn Creek; Tenas Creek is also a tributary of Goathorn Creek (see the Site Plan billboard). Both halves of the mine drain, eventually, into Goathorn Creek — which then flows into the Bulkley. The Jul 2026 Water IR carries the per-watershed descriptions: "Four Creek is a tributary to Goathorn Creek and is approximately 7 km long, flowing along a portion of the eastern edges of the Project Area. The upper reaches of Four Creek provide fish habitat" (Overall Final Water IR, Part 4, p113). Fish habitat in Four Creek is downstream of the mine's East-side water.

"The CPP Sedimentation Pond is not forecast to discharge during Operation" is a positive-sounding sentence that reserves a discharge route. "Not forecast" is a modelled result; the flow diagram shows an "Emergency Discharge" arrow from the CPP Sedimentation Pond to Four Creek. The pond therefore has a release path when needed. "Not forecast to discharge during Operation" does not say it will not discharge in decommissioning / reclamation; it does not say it will not discharge during the Project's most-extreme-year wet event.

"Tested regularly even when there is no discharge" is tacit acknowledgement of a seepage question. The repetition for both the Tenas Control Pond and the Rail Infrastructure Sedimentation Pond anticipates the obvious concern: a pond holding mine-affected water for long periods may seep. Testing without discharge monitors the pond itself; it does not monitor what might be reaching groundwater or downstream receivers through routes other than the designed discharge point.

"Sufficient water volume even in low water years" is a modelled claim; the model has selenium uncertainty. The Water and Load Balance Model carries the volumes (App1.0-Ea Water and Load Balance Modelling; App04.3-A Water Balance Report, Part 1). TCL's July 2026 IR response notes that this same model cannot adequately predict selenium speciation (Overall Final Water IR, Part 2, p113). "Sufficient water volume" is a quantity statement; the quality statement that must accompany every discharge is where the uncertainty sits.

Contact water carries blast residues and suspended sediment, both named in TCL's own Aquatic chapter. "There is a potential change in water quality due to flow alterations, release of suspended sediments, Minesite contact water, and blast residues. Changes in water quality due to diversions and discharges of contact and non-contact water can cause changes to aquatic environments" (04.5 Aquatic Resources, p37). The billboard's neutral "collect, direct, test, discharge" framing names none of these constituents.

Climate-change hydrology is not visible on the billboard. "Historical records" is cited as a basis for low-water-year assurance, but historical streamflow in the Bulkley system reflects a climate that is changing. Snowpack decline, longer summer drought, and more frequent fall atmospheric-river events shift the water balance against the pattern the model assumes. The billboard treats the Water Balance Model as a settled calculation; the Jul 2026 IR exchange shows the EAO is still asking questions about it.

"Non-contact water diverted around the mine" and the "watercourse diversion" language in the Fish chapter are the same system seen from two sides. Fish chapter: "Where permanent loss of fish habitat productivity is anticipated (i.e., infilling of watercourses, watercourse diversions that eliminate stream habitat within the mine footprint), residual effects of construction activities are predicted to occur" (04.6 Fish and Fish Habitat, p84). The water-sourcing panel calls this a diversion; the fish panel calls it an elimination of stream habitat. Both are correct.

Read next.

• App01.0-F Water Management Report, Part 2 (p24) — ten-pond system detail.
• 13.11 Minesite Water Management Plan, Part 7 (p21) — pond objectives and water-quality design.
• App1.0-Ea Water and Load Balance Modelling — the model behind "sufficient water volume."
• Overall Final Water IR, Part 2 (p113) — selenium prediction uncertainty.
• Overall Final Water IR, Part 4 (p113) — Four Creek watershed description.
• 04.5 Aquatic Resources (p37) — contact-water and blast-residue effects.

The drawdown zone from pit dewatering reaches 18 km² — larger than the mine footprint itself. From TCL's July 2026 Overall Final Water IR response: "The model predicts the drawdown induced by the open pit dewatering (i.e., long term, EOM conditions) could extend up to a maximum of 18 km²" (Overall Final Water IR, Part 5, p167). The footprint on the Key Facts billboard is ~1,050 ha (10.5 km²); the hydrogeological footprint of the pit's cone-of-depression is 71% larger again. The groundwater system under neighbouring land, well outside the fence, is pulled toward the pit for the entire operational mine life.

"Not predicted to reach any of the private domestic wells" is a modelled prediction, and the private-well baseline is five wells. The billboard states five private wells were sampled for the baseline. Residents on wells that are not among the five have modelled, not measured, assurance about their own water quality and well production; the measured baseline covers five wells and the model covers the rest.

"When mixed with background groundwater, no constituent is predicted to exceed the BC WQG DWS" acknowledges mine-source seepage reaches drinking-water aquifers. Read literally: seepage from mine sources will reach the groundwater system that private domestic-well users draw from. The mitigation is dilution. Dilution works at the modelled average flow conditions; it works less well in low-flow years, and not at all for parameters that bioaccumulate.

Baseline is already in exceedance for twelve parameters. The Groundwater Quality bullets admit baseline groundwater exceeds BC WQG FAL for seven parameters (fluoride, ammonia, dissolved aluminum, cadmium, chromium, copper, iron, silver) and BC WQG DWS for five more (fluoride, dissolved iron, cobalt, manganese, mercury). Five sampled private wells show FAL and DWS exceedance for arsenic, manganese, iron, phosphorus, and total organic carbon at baseline. "No new exceedance" against this baseline is a low bar.

"5% change as an acceptable limit" is the significance threshold doing the heaviest lifting. The Residual Effects bullet treats a 5% change in groundwater quality or discharge rate as acceptable. A 5% change in dissolved selenium concentration at a receiving creek, for example, is below the significance threshold but may still shift a fish population; the EAO's significance test is a regulatory finding, not an ecological one.

"Low-permeability liners" is a design commitment with a time horizon the billboard does not state. HDPE liners, geosynthetic clay liners, and compacted-till liners each have characteristic hydraulic conductivity ranges on the order of 1E-7 to 1E-9 cm/s when installed. The Jul 2026 IR Part 5 (p452) carries the hydraulic conductivity assumptions used in the WLBM for ponds and lifts (Overall Final Water IR, Part 5, p452). Liners age; the pond-containment system must function long after the operator has gone. Liner-life has no "mitigation measure" entry on the billboard.

"Allowed to flood with a combination of contact and non-contact water" takes about 12 years. From the Water Balance report: "At closure, open pit dewatering to the Management Ponds will stop, allowing runoff to flood the open pit. The maximum capacity of the open pit is 1.1 Mm³ (elevation of 909 masl) after it is backfilled with Non-PAG rock. Open Pit filling lasts approximately 12 years with average hydrologic and gro[undwater conditions]" (App04.3-A Water Balance Report, Part 1, p81; also App1.0-Ea Water and Load Balance Modelling, p81). During those twelve years the pit lake carries whatever constituents the inflowing contact water carries; the end pit lake is the same water-cover PAG storage described on the Acid Rock Drainage billboard.

"Raise groundwater levels closer to current conditions" is the right direction but not full restoration. "Closer to current" acknowledges, in English, that post-mining groundwater levels will not match pre-mining levels. The 18 km² cone of depression recovers partially after the pit floods, more fully over subsequent decades, but the aquifer system takes much longer to re-equilibrate than the 12 years of pit refilling.

Selenium is the same unresolved question here as on the surface-water side. Groundwater carries contact-water constituents into creek discharges; the groundwater quality bullet does not mention selenium, and the Jul 2026 IR response names selenium as the parameter the Water and Load Balance Model cannot adequately predict (Overall Final Water IR, Part 2, p113). The groundwater-to-creek-discharge pathway is one of the pathways by which that uncertainty becomes a water-quality outcome downstream.

"Localized" is a comforting word for an 18 km² drawdown zone. The billboard says "Changes to groundwater levels will be localized." The modelled drawdown area (~1,800 ha) is larger than the Project footprint of ~1,050 ha. "Localized" relative to the Regional Study Area is not localized relative to the Project itself; the groundwater model's drawdown envelope is TCL's own figure.

Read next.

• 04.4 Groundwater — the full groundwater chapter.
• App04.4-A Groundwater Technical / Hydrogeology Report — baseline measurements and model inputs.
• Overall Final Water IR, Part 5 (p167) — the 18 km² drawdown prediction.
• Overall Final Water IR, Part 5 (p452) — hydraulic-conductivity assumptions.
• App04.3-A Water Balance Report, Part 1 (p81) — the 12-year pit-filling calculation.
• 04.4 Groundwater, p46 — spill-response language for groundwater pathways.

The headline depth is not the design depth. The billboard foregrounds "at least 2 m of water" over PAG. The application's own commitment is a 1-metre minimum: "the purpose of the management ponds is to prevent ARD by storing PAG materials under a minimum water cover of 1 m, reducing the potential for oxidation of PAG materials" (Overview, Part I, p38). The 2 m figure applies only after a pond is at capacity; during the stated 6-to-12-month interim after each placement, cover is 1 m. Material placed late in a pond's fill is at the interim depth for its working lifetime.

The regulator did not accept the first-cut plan. On 2022-10-07, BC Energy, Mines and Low-Carbon Innovation (EMLI) Geoscience, Issue #146 in the Working Group tracker, asked TCL to "propose a more conservative development of the Tenas mine rock NP designation" and revise the ML/ARDMP's blending assumptions (WG Issues Tracking Table, 10 Apr 2024, spreadsheet). The plan on the billboard is one iteration of a document the regulator has repeatedly asked to be strengthened.

The model that predicts downstream water quality does not resolve selenium. Selenium is the metal that has defined ARD impact at Teck's Elk Valley coal mines, where discharges have exceeded BC guidelines for more than a decade. TCL's July 2026 Overall Final Water Information Request response states plainly: "There is insufficient information to provide an accurate prediction of selenium speciation in the receiving environment using the Water and Load Balance Model (WLBM). Any assumption included to show this in the model would contain significant uncertainty" (Overall Final Water IR, Part 2, p113).

Water cover alone is not the whole mitigation. The billboard's fire-triangle analogy implies that removing one input stops the reaction. Oxygen in buried pyrite can still react with the oxygen already dissolved in cover water, and any oxidation products present in the rock before submergence continue to leach. The record's technical appendices (App01.0-Q PAG Management Alternatives, App13.12-A ML/ARD Characterization) are the arguments the billboard summarises in two sentences and a cartoon.

The closure landform must stay stable in perpetuity. The "dry landform above water similar to pre-Project" is a cap over permanently submerged acid-generating rock whose chemistry must remain stable for geological time. Failure modes not addressed on the billboard: pond-liner degradation, climate-driven drawdown (the Bulkley Valley is projected to warm and shift its hydrograph by century-end), upstream basin changes, and seismic loosening of the containment. The pond must hold while the mine company does not.

Read next.

• App01.0-M — Supplemental Geochemical Characterization (how PAG rock was identified)
• App01.0-Q — PAG Management Alternatives (why water cover was chosen over dry stack or paste backfill)
• App13.12-A — ML/ARD Characterization (humidity-cell leaching data)
• Overview, Part I §13 (p38) — the actual pond commitment language
• Tenas Working Group Issues Tracking Table (2024) — regulator pushback, EMLI entries

"No net loss of habitat" depends on offsetting, and offsetting is still a plan. The independent Tenas Coal Fish Final Report states: "One primary reason why the Application states that there will be no significant impacts to fish and fish habitat is the consideration of the offsetting plan. The Fisheries Act requires that all harmful alteration, damage, and destruction (HADD) of fish habitat be offset by the construction or restor[ation of equivalent habitat]" (Tenas Coal Fish Final Report, p26). The Phase 1 Offsetting Memo (App04.6-D Phase 1 Offsetting) describes a short-list, not a built, offsetting program; the species it will "prioritize" are Rainbow Trout and Dolly Varden (Fish IR response, p43).

"Non-fish-bearing tributaries" still feed fish-bearing streams. TN6, TN7, and TN8 do not themselves hold fish, but they deliver flow, nutrients, sediment, and thermal buffering into Tenas Creek, which does hold Dolly Varden and Steelhead / rainbow trout. The Water Sourcing & Discharge billboard's diversion of non-contact water around the mine footprint is the same system. Downstream fish habitat changes when its upstream water balance changes, even if the removed water never carried fish itself.

Selenium is the parameter the Fish Health subcomponent exists for, and the model admits it cannot resolve it. The dedicated Selenium Bioaccumulation Model appendix (App13.5-G Selenium Bioaccumulation Model and SPO, p12) carries fish-egg selenium benchmarks (24.5 mg/kg dw) back-calculated to water screening guidelines (14–27 µg/L). The July 2026 Water IR response then says: "There is insufficient information to provide an accurate prediction of selenium speciation in the receiving environment using the Water and Load Balance Model (WLBM)" (Overall Final Water IR, Part 2, p113). Selenium causes jaw deformities and egg-sac mortality in salmonids at low µg/L concentrations; the billboard does not name it.

Steelhead and Chinook on the Bulkley are species of concern, and the billboard treats them as a column entry. Bulkley / Skeena system steelhead have been reviewed under COSEWIC; wild Chinook populations across BC's Skeena system have declined over decades. The billboard's "Species" column lists them alongside white suckers; the regulatory risk profile is different. The Fish and Fish Habitat chapter's significance table (04.6 Fish and Fish Habitat, p92) treats fish-habitat changes as "not expected to extend beyond the LSA" — but the LSA excludes the main-stem Bulkley population.

The 20 m waterfall on Tenas Creek is a natural barrier that becomes a mine-affected barrier. Tenas Creek is "fish-bearing from the confluence of Goathorn Creek for approximately 16.5 km to a 20 m waterfall." The mine sits above that waterfall; the fish do not. The waterfall protects downstream fish from upstream fish-habitat changes, but it does not stop water from carrying contaminants down to the fish-bearing reach. The barrier is physical, not chemical.

Four Creek Reach 1 contains spawning habitat that is directly affected by project traffic. "Reach 1 (confluence of Goathorn Creek to culvert beneath a Telkwa Mining private road) offers potential spawning habitat." The TAC crosses creeks (118 culverts, per the Tenas Access Corridor billboard). Spawning habitat downstream of a culvert carrying road runoff is more exposed to sediment pulses, fuel spills, and dust-suppressant residues than habitat upstream.

"Baseline and supplementary programs 2017–2024" is a seven-year baseline — longer than the surface-water baseline but still partial. Multi-decade salmonid-population records on the Bulkley system exist in DFO stock-assessment data. The seven-year baseline captures within-project characterisation but not multi-decade population trends against which project effects would be detected.

"Clear-span bridges" and "culverts overseen by a qualified professional" are good standard practice; they do not undo an infilled tributary. Clear-span bridges prevent abutments from constraining the bankfull channel. Qualified-professional culvert oversight meets DFO guidance. Neither applies to the three TN tributaries inside the mine footprint, which are not crossed but removed.

"Fish salvage" happens before infilling; it is relocation, not preservation. Fish salvage involves netting or electrofishing fish out of a reach that will be dewatered or infilled, and releasing them downstream. Mortality during salvage and in the receiving habitat is a known cost. For the TN tributaries described as "non-fish-bearing," no salvage is needed; for Four Creek crossings and other reaches that are temporarily isolated, salvage is the mitigation of record.

The EAO's own presentation covers the trade more honestly. "Changes in fish habitat are expected to arise from the diversion of water currently conveyed in tributaries to Tenas and Four Creeks. After implementation of fish habitat offsetting for the change in fish habitat due to the Project, a net gain habitat productivity is predicted" (EAO Application Review presentation, p13). "Net gain" is the regulatory success criterion; whether constructed offsetting habitat delivers the function the destroyed habitat delivered is the long-tail question.

Read next.

• 04.6 Fish and Fish Habitat (p84) — the "permanent loss" language and the HADD / offsetting framework.
• Tenas Coal Fish Final Report, May 2022 — the independent fish report.
• App13.5-G Selenium Bioaccumulation Model and SPO — fish-tissue selenium benchmarks.
• Overall Final Water IR, Part 2 (p113) — the "WLBM cannot predict selenium" admission.
• App04.6-D Phase 1 Offsetting (Hemmera memo) — the short-list of offsetting options.
• Tenas Public Consultation Report 3 (September 2022) — how the fish story was presented to the public.

"Little Brown Myotis and Long-eared Myotis … identified in the Project Area" are each federally listed. Little Brown Myotis is federally SARA Schedule 1 Endangered, emergency-listed in 2014 along with Northern Myotis and tri-coloured bat "due to dramatic reductions in populations from White-Nose Syndrome (WNS)" (App04.8-A-A Wildlife Baseline, Bats Appendix, p84). The billboard's neutral "several species of bats were identified" wording understates the regulatory risk: the two species named are listed under the Species at Risk Act.

Grizzly Bear is in the "Project Area is used by" sentence; the proponent's own baseline flags why that matters. From the Wildlife Baseline Report: "Grizzly bear habitat is at risk from expanding industrial, residential and recreational developments (COSEWIC 2012). Habitat and population fragmentation are underway in the southern part of the bear's distribution. The life history characteristics of this bear make it particul[arly vulnerable]" (App04.8-A Wildlife Baseline, p149). The billboard puts Grizzly Bear next to Deer and Elk in a single sentence; the Baseline Report treats it as a species whose critical risk factor is exactly the activity the Project represents.

"Caribou were not detected within the Project Area during the two years of baseline studies." The map itself shows three nested "Tenas Caribou Herd Regional Study Area" polygons (1, 2 Core, 2 Matrix) overlapping the Project Area. Caribou use large seasonal ranges; absence of detection in two years does not imply absence of range overlap. The Caribou subcomponent is also treated on the dedicated Caribou billboard; the Tenas Herd is the subject of a separate conservation discussion.

Western toad is federally SARA Special Concern; several amphibians listed are in decline. Western Toad, Columbia spotted frog, long-toed salamander, and wood frog in the Project Area are not a trivial list. Amphibians are among the most sensitive indicator taxa for habitat change and water-chemistry change. The baseline-report chapter structure recognises this; the billboard's single bullet collapses it.

The habitat-disturbance model uses a 500 m buffer around infrastructure — a measurement already cited elsewhere on this page. ECCC comment #416 in the WG Issues Tracking Table: "the habitat disturbance model provided in the Wildlife Baseline Report (Appendix 4.8-A) considered the combined direct loss and indirect alteration of habitat (collectively referred to as habitat disturbance) within each Caribou study area by using the actual footprint and a 500 m buffer around the exis[ting infrastructure]" (WG Issues Tracking Table). An independent public submission applied a wider 4 km disturbance zone (Hite — Map of mine area with disturbance zone). The billboard draws neither buffer on its study-area map.

"Residual effects not expected to alter the integrity … to a point where it is not able to sustain regional populations" is the EAO significance threshold stated as the ceiling. Regional-population-collapse is a very high bar. Below it sit effects that matter — individual mortality from mine traffic and blasting, altered movement corridors, bat roost loss, amphibian pond loss, grizzly-bear habitat fragmentation. "Not likely to collapse the regional population" is compatible with substantial local impact.

"A policy prohibiting hunting within the Project Area" is a good internal rule and a displacement mechanism. No hunting inside the fence protects wildlife that moves through TCL's working surfaces, where humans + heavy equipment + roads already produce elevated mortality risk. It also concentrates hunting pressure on neighbouring tenures, where guide-outfitters and resident hunters compete for the same prey. The policy is a trade, not a net reduction.

"Field Assessments, surveys and mapping are ongoing" is a baseline that is not finished. The red-circle note is the only one on any Open House billboard that admits the baseline is still being completed. For a Wildlife chapter already in Residual Effects conclusions, the ongoing baseline is unusual phrasing; it suggests either late-arriving data or late-arriving requests from the Working Group (both are visible in the Tracking Table).

"Least-risk timing windows" is standard DFO / BC MOE guidance; it does not apply to 24/7 operations. Timing windows constrain Construction Phase activities (clearing, pond construction, bridge installation). Operation Phase traffic, blasting, lighting, and noise run 365 days a year as described on the Key Facts billboard. The timing-window mitigation is a Construction-Phase tool.

"Avoid sensitive environments such as known wetland and riparian areas" is a statement of design intent, not an inventory. Which specific wetlands and riparian areas have been avoided, and which have been accepted as collateral, is not on the billboard. The Wildlife chapter (04.8 Wildlife Part 2, p101) carries the Bat mortality residual-effects characterisation and the Avian Baseline (App04.9-A Avian Baseline) carries the species-by-species conservation-status table.

Read next.

• App04.8-A Wildlife Baseline (p149) — grizzly bear fragmentation context.
• App04.8-A-A Bats Appendix (p84) — SARA emergency listings for three bat species.
• 04.8 Wildlife, Part 2 (p101) — bat-mortality residual-effects characterisation.
• App04.9-A Avian Baseline — bird species-of-concern inventory for the Project Area.
• WG Issues Tracking Table — the 500 m disturbance-buffer discussion with ECCC.

The Telkwa Caribou Herd was 30 animals in 2019, and more recent estimates exist. From the Working Group Issues Tracking Table (Round 2, Dec 2022): "2019 (i.e., 30 animals)" (WG Issues Tracking Table Round 2). The April 2024 Tracking Table shows ECCC's subsequent note that TCL should use the most recent provincial estimate at the BC caribou-herds population-estimates page, "and recommends that this informat[ion be incorporated]" (WG Issues Tracking Table, April 2024). A herd on the order of 30 animals is at or near the "functional extinction" threshold; small-population effects (demographic stochasticity, allele loss, mate-finding failure) amplify every added pressure.

"Predation is the main factor" without naming the mechanism that drives the predation is standard industrial-disturbance framing. TCL's own Wildlife Baseline reports it directly: "To supplement the overall disturbed area analyses, a subset of disturbances associated with two specific effects pathways on caribou were also summarized — apparent competition and facilitated predation. In the case of the TCH, apparent competition refers to the situation where moose and/or deer po[pulations increase]" (App04.8-A-A Wildlife Baseline, Apps D–G, p73). Linear infrastructure (roads, powerlines, rail) and vegetation disturbance support more moose and deer; more moose and deer support more wolves; more wolves kill more caribou. TCL's own appendix recognises the pathway; the key-findings bullet "The Project will not affect the broader predator-prey system" is incompatible with it.

The 35% disturbance threshold is being used in a way the regulators called a mischaracterization. From ECCC's formal comment: "Appendix 1 states, 'The federal recovery strategy requires 65% undisturbed habitat within low-elevation winter range and, although this threshold remains untested in mountain caribou systems.' ECCC notes that the above statement is a mischaracterization. The Recovery Strategy st[ates something different]" (TML Letter to EAO re Caribou Meeting Response, Jan 2026, p10). The provincial LWRS (Land Water Resource Stewardship) comment #422: "The use of the 35% disturbance threshold was misinterpretated in TCL's wildlife baseline report and the Management plan. Ideally, 0% dist[urbance would be preferred for recovery]" (WG Issues Tracking Table Round 2, comment #422). The billboard's "does not compromise the recovery goal of reducing habitat disturbance to <35%" works only within TCL's own framing of that goal.

"Not detected during two years of baseline" is a short window against a 30-year collar record. The Seasonal Distribution map on the billboard draws collar locations from 1994–2023. The "not detected during baseline" line draws from the 2017–2019 field surveys. A herd that averaged 30 animals in 2019, with low re-detection probability per unit survey effort, is a difficult detection problem; two years of baseline is a small sample for that question.

Camel Humps shows high-density collar locations and sits within sight of the mine. The All-Seasons density map labels Camel Humps with "very high" collar density. A public submission to the EAO filed its own line-of-sight analysis from Camel Humps to the project (M. Hite — Map line of sight to Camel Humps, see also the Visual Resources billboard). Caribou using Camel Humps during migration or winter would see, hear, and smell active mine operations, 365 days a year.

"Current habitat use" measures a herd already compressed by prior disturbance; the recovery goal is to re-expand it. The billboard says "minimal overlap between the Project Area and current Caribou habitat use." Caribou herds under recovery strategies are expected to re-colonise historical ranges as habitat recovers. Measuring "current" use understates critical habitat and future use. The Baseline (App04.8-A Wildlife Baseline, p58) applies the federal Recovery Strategy guidance to the disturbed-area calculation; the recovery frame is written down.

"Spatial separation of the current caribou range and the Project Area" is contradicted by TCL's own mortality text. From the Wildlife Baseline: "Telkwa caribou mortality has mostly been attributed to predation because harvest and other risks of mortality are assumed to be negligible for the herd, and because the mortality of collared caribou have mostly been attributed to documented predation events. Reducing predation by wolve[s is a focus]" (App04.8-A Wildlife Baseline, p174). The herd is predation-limited; predation is driven by habitat alteration; the Project adds habitat alteration; "spatial separation" names where the fence sits, not where the pathway operates.

"If caribou are observed within the Project Area, the BC Regional Wildlife Biologist will be notified" is a reporting commitment, not a mitigation. Notification happens after the caribou is already in the industrial footprint. The actual mitigations in the Wildlife chapter — timing windows, flagging, fencing, education, access control — do not address apparent competition at all.

The "most recent and relevant information available" (red circle) is only as recent and relevant as what TCL chose to include. ECCC and LWRS both filed comments asking TCL to use updated population estimates and to correct the 35%-threshold framing. The red circle attests to effort; the Tracking Table shows the regulatory record of what was asked for and what was returned.

Read next.

• Our page on the Telkwa Caribou herd — herd status, recovery history, and local context.
• App04.8-A-A Wildlife Baseline (Apps D–G, p73) — apparent competition and facilitated predation pathways.
• App04.8-A Wildlife Baseline (p167) — the Telkwa Caribou Herd source documents.
• TML Letter to EAO re Caribou Meeting Response (Jan 2026, p10) — ECCC "mischaracterization" of the 65% / 35% framing.
• WG Issues Tracking Table Round 2 and WG Issues Tracking Table April 2024 — regulator pushback on population estimates and disturbance threshold.
• Hite — line of sight to Camel Humps — public submission on project visibility from caribou high-density ground.

The billboard names the two Houses with primary territorial authority; it does not say whether either has consented. The sentence "the C’inilh K’it territory of the Gitdumden Clan’s Cas’Yex House and Cosl’et Bin territory of the Laksilyu Clan’s Kwen Bea Yex House" correctly identifies the two Wet’suwet’en Houses whose Hereditary Chiefs hold fiduciary responsibility for the ground the mine will stand on. The Wet’suwet’en chapter in the Application describes the responsibility: "Wet’suwet’en governance through their traditional system of Anuk Nu’at’en is a fiduciary relationship, wherein Wet’suwet’en hereditary title holders are duty bound to act in the best interests of the Yintah (including the specific values of water, wildlife, plants, fish, and heritage), and future generatio[ns]" (11.0 Wet’suwet’en Part C, p58). The billboard says TML "recognizes the rights" of the Wet’suwet’en; recognition is not Free, Prior and Informed Consent.

The Office of the Wet’suwet’en is not named on this billboard. OW is the coalition of Hereditary Chiefs representing the five Clans of the Wet’suwet’en in dealings with the Crown; it is the body that would carry Hereditary-system consent on heritage matters. See the Project Benefits billboard and App01.0-AH Comparison of Conuma to Telkwa, p11 for OW's own requested role in environmental management plans; see the Section 25 IR response for the record of OW's structural comments on consultation.

"3 culturally modified trees + 3 historic mining areas + Hubert town site" is a short inventory for the Bulkley Valley. The Bulkley is a river system with deep continuous Wet’suwet’en occupation. The Cultural Use Study notes: "Wet’suwet’en territories once contained a vast trail network that served as a foundation to Wet’suwet’en values, interests, and land use. Access to trading opportunities, territorial resources, homeplaces, villages, and spiritual sites was crucial to the semi-nomadic economy and life-ways of the Wet[’suwet’en]" (App11.0-A Cultural Use Study, p85). The LSA inventory of three CMTs reflects what was found during a specific survey window; it does not describe the resource base.

The historic-mining sites on the ground are already partly erased. From the baseline archaeology work: "ology assessment conducted in 1984, artifacts found included metal objects, glass, boots, and concrete foundations. An archaeological inventory and impact assessment in 1997 determined that most of what was recorded in 1984 is no longer identifiable" (App07.1-B Cultural Use Study, p74). The "3 areas with evidence of historic mining activity" is a measurement of what survives today, not a baseline of what was there before.

Five archaeological sites are registered within 2 km of the Study Area; the billboard names two. From the Baseline Archaeology Report: "The review of RAAD resulted in five registered archaeology sites within a two kilometer radius of the Study Area. These sites were identified in previous archaeological impact assessments. GdSs 1, GdSs 2, GdSs 3 and GdSs 4 indicate that historic mining and logging activity occurred in the area in th[e past]" (App07.1-A Baseline Archaeology Report, p67). The map on the billboard labels GdSs-5 and GdSs-8; the other three registered sites are within 2 km and not drawn.

"Will avoid areas with known archaeology sites" has two caveats. First, GdSs-5 and GdSs-8 are drawn inside or at the edge of the Project infrastructure footprint on the billboard's own map; "avoid" means buffer, not relocation. Second, "known" sites are what has been documented in surveys to date; the Preliminary Field Reconnaissance covered part of the LSA, not all of it. The Chance Find Procedure exists because the inventory is incomplete.

The Palaeontological study is "desktop-based" and "preliminary". No field palaeontology was conducted. The Bulkley Valley is underlain by Skeena Group sedimentary rocks of Cretaceous age — a formation known to contain plant and marine fossils. A desktop assessment reads existing literature; it does not survey the ground. The Fossil Impact Assessment commitment on the billboard is to inventory what is in reports already, not what is under the pit.

"Not automatically protected under legislation" is a sentence that quietly admits most of what's there has no legal protection. The mitigation bullet reads: "For known historic and cultural sites, including palaeontological sites, not automatically protected under legislation, TML will consult with the affected communities to determine preferred mitigation measures." BC's Heritage Conservation Act protects archaeological sites older than 1846; younger historic sites (including some of the "3 historic mining areas") are not covered. Protection depends on TML's voluntary consultation and the EAO permit conditions, not on standing law.

"No significant adverse effects to heritage resources were identified" is the EAO significance determination. As on the air quality, noise, and surface-water billboards, "no significant" means mitigation is predicted to be effective. For heritage, the mitigation hierarchy is: avoid; where avoidance fails, record; where recording fails, salvage. Documentation and salvage preserve information about a resource; they do not preserve the resource.

The Hubert town site is named without context. Hubert was an early 20th-century Bulkley Valley settlement. The town site is listed among "historic and cultural sites" on the billboard without further description. Project effects on the Hubert site (direct infrastructure, viewshed from the TAC, altered access patterns) are not elaborated here; the Project Description (Nov 2018), p74 carries the heritage-resource framing used at scoping.

Read next.

• App11.0-A Cultural Use Study — Wet’suwet’en trail-network, use areas, and TCL's baseline inventory.
• 11.0 Wet’suwet’en Part C (p58) — the Anuk Nu’at’en governance system.
• App07.1-A Baseline Archaeology Report — RAAD review and the full list of registered sites.
• App07.1-B Cultural Use Study (p74) — history of the historic-mining-site degradation.
• App01.0-AH Comparison of Conuma to Telkwa (p11) — Office of the Wet’suwet’en's requested role in management plans.
• Section 25 IR response — OW's structural comments on consultation.

The first Residual Effects bullet is an admission: Telkwa's air is already above the health-based limit, and the Project makes it worse. A Concentration Ratio (CR) of 1 is the point at which modelled exposure equals the exposure Health Canada considers acceptable. "The CR threshold of 1 for dust is already exceeded in Telkwa under existing conditions" means Telkwa residents are already breathing more dust than the HHRA framework allows. The Project adds "less than 5%" to that already-over number. 5% of a value above 1.0 is still above 1.0, and the increment lands on children, elders, and people with respiratory conditions first. See also the Air Quality billboard's "no new exceedances" wording.

The toddler is the index receptor; the pathway diagram is accurate. From the Screening Benchmarks derivation: "Screening benchmarks are back-calculated using Equation 1 and are based on the most conservative (toddler) oral toxicity reference value (TRV) and receptor-specific subsistence foods consumption rates" (App08.0-A-C Derivation of Screening Benchmarks for Subsistence Foods, p2). Toddlers eat more per body weight, mouth more soil, and are developmentally vulnerable; the HHRA puts them at the top of the exposure cascade. That calibration is correct.

Subsistence consumption is modelled as an LSA-wide average, not as reality. From the Wet’suwet’en chapter: "The subsistence foods assessment assumes that land users (including Indigenous hunters, trappers, and gatherers) consume subsistence foods harvested from throughout the Human Health LSA, thus, there are no specific receptor locations. To provide a conservative estima[te]…" (11.0 Wet’suwet’en Part C, p100). "Throughout the LSA" is the conservative framing: it averages a harvest that may in reality concentrate in specific places (favoured berry patches, salmon-bearing creeks, moose licks). People who harvest from a hotspot get a higher dose than the LSA-wide average predicts.

The pathway diagram includes "Fish and Wildlife used as subsistence food"; the record says selenium cannot be predicted. The HHRA food-chain pathway (soil → plants → wildlife; effluent → surface water → fish) depends on knowing what's in the water and in the biota. The Jul 2026 Water IR response states: "There is insufficient information to provide an accurate prediction of selenium speciation in the receiving environment using the Water and Load Balance Model (WLBM)" (Overall Final Water IR, Part 2, p113). Selenium bioaccumulates up the food chain and has a dedicated appendix in TCL's own record (App13.5-G Selenium Bioaccumulation Model and SPO, p12). Subsistence consumers are at the top of that chain.

"Policy prohibiting shooting, hunting, and fishing within the Project Area" protects workers' dinner, not the surrounding country. The policy prevents on-site workers from eating fish or game from the mine footprint — a sensible precaution, since the fish and wildlife most exposed to contact-water constituents are those within the Project. It does nothing for subsistence harvesters working the downstream reaches of Tenas Creek, Goathorn Creek, the Bulkley River, or the Telkwa River — all of which receive discharges from the system described on the Water Sourcing & Discharge billboard.

"Nighttime noise below 40 dBA" is a continuous-noise metric; blast noise is impulsive and not covered. The Residual Effects bullet addresses the Permissible Sound Level for continuous nighttime noise. From the Wet’suwet’en Members' Information and Oversight Vehicle response: "the maximum noise levels may exceed the target daytime noise level of 55 dBA up to 2 km from the blast site. Maximum noise levels may exceed the cautionary limit of 120 dBL up to 1 km from the blast site" (WMIOV Response, Air and Noise, March 2025, p29). Impulse-noise events are not addressed in the sleep-disturbance claim.

The HHRA treats smaller-home-range species as the relevant subsistence receptors. From the HHRA: "Mule deer, snowshoe hare, and grouse were included as a large and small mammal, and as a bird, respectively, with smaller home ranges than moose, based on information provided in Rescan (2008). Animals with smaller home ranges located near the Project are preferable to evaluate potential Project-rela[ted effects]" (App08.0-A HHRA, p63). Smaller home ranges concentrate exposure; moose roam widely and dilute the local signal. The HHRA methodology is defensible; the question is whether real Indigenous harvest patterns match the species TCL modelled.

Concentration ratios at Telkwa receptors are the operative numbers, not the headline summary. The HHRA chapter table (Table 5.4-2) carries Concentration Ratios for CACs at Receptor Locations in the Base Case and Project Case for Operation (08.1 Human Health, p69). The chapter-level discussion addresses the stove-swap offset program (08.1 Human Health, p62) that was flagged on the Air Quality billboard; the "less than 5% increase" on this billboard works alongside that offset to keep the Project Case CR from rising further.

"Adaptive management" is the HHRA's backstop too. Monitor actual blast results, monitor dust, monitor water, respond if measurements deviate from model. Residents in Telkwa are the detectors: dust that lands on their vehicles, noise that wakes them at night, water that changes taste. The adaptive-management framing accepts measurable project effect; the design accepts a Base Case already over the CR threshold.

The Public Consultation Report records how this story was presented in 2022. The Public Consultation Report 3 reproduces the same language that appears on this billboard: "The concentration ratio (CR) threshold of 1 is already exceeded in Telkwa under existing conditions and the predicted increase in CR is less than 5%" (Public Consultation Report 3, p35). The sentence was in the public record then; it is on the billboard now; it has not been corrected.

Read next.

• App08.0-A HHRA — the full Human Health Risk Assessment.
• App08.0-A-C Derivation of Screening Benchmarks for Subsistence Foods — the toddler-indexed benchmarks.
• 11.0 Wet’suwet’en Part C (p100) — subsistence-foods assessment framing.
• App13.5-G Selenium Bioaccumulation Model and SPO — fish-tissue selenium benchmarks and screening guidelines.
• Overall Final Water IR, Part 2 (p113) — the "WLBM cannot predict selenium" admission.
• 08.1 Human Health, p69 — CR table for CACs at Telkwa receptors.

The scariest finding is on the billboard, uncaptioned. The yellow shading on the "Viewpoint and Viewshed Analysis" map — the proponent's own output from ArcGIS 10.7.1 applied to a 20-metre Canadian DEM (Visual Resources chapter, p23) — covers most of the inhabited Bulkley Valley. Smithers, Telkwa, the First Nation reserves, Tyhee Lake, Hudson Bay Mountain and most of the recreation trails lie inside the Project viewshed. The billboard shades it in but does not say what it means: from where most people live and work, the pit is in the field of view.

Two viewpoints shown, nineteen in the file, more missing. The billboard reproduces simulations from PP4 and PP11. Seventeen other viewpoints (PP1–PP3, PP5–PP10, PP12–PP19) exist in the record but are not shown. A public submission filed its own line-of-sight analysis from Camel Humps that lies outside TCL's viewpoint set (M. Hite — line of sight to Camel Humps), showing the Project visible from a popular hiking destination TCL did not model.

The mitigations are paint and leaves. "Select tonal values and low chroma colours to paint buildings" and "vegetation screening to hide small, high-contrast features." The record explicitly allows cost to override even that: features can be camouflaged "unless it is cost prohibitive to do so." Open-pit walls, waste-rock storage piles and the three management ponds are too large to paint or hide; the simulations show them anyway, so the mitigation framing applies only to the small, moveable pieces.

"Only" is doing a lot of work. The Residual Effects panel reads: "Only the reduction in Minesite Visual Quality during the Active Phases was rated as Significant." That sentence contains two concessions buried behind "only": (1) the reduction is Significant — the EAO's term of art, meaning adverse and material; (2) a residual reduction in visual quality is predicted during all phases, including post-closure. The "Post-closure" simulation panels for PP4 and PP11 depict grass regrowth where the actual landform is a dry cover over the submerged PAG rock described on the Acid Rock Drainage billboard.

No mention of night lighting. Mine-site exterior lighting during 24-hour construction and operation reaches the horizon from the same viewshed the daytime pit does. The record addresses lighting in the Wildlife (04.8 Wildlife Part 2, p41) and Avian chapters, both prescribing light-management "best management practices." The Visual Resources chapter does not treat night sky quality as an effect on humans.

The economic chapter does not match the visual chapter. The proponent's own Economic Development chapter concedes that "Project Construction, Operation, and Decommissioning and Reclamation phases have the potential to decrease local and regional tourism to the LSA and/or RSA if Project-related disturbances such as noise, dust or visual aesthetics (including real or perceived)..." (05.2 Economic Development, p52). The Visual Resources chapter does not quantify or link to that downstream economic cost.

Try the simulation yourself. We built a 3D terrain viewer so you do not have to trust ours, theirs, or anyone else's single photo-sim: open the valley map, drag to any vantage point — your house, your daily commute, the lookout you ski from — and see the pit shape at that angle. You can also submit your own ground-level photograph and have it overlaid on the terrain.

Read next.

• 06.2 Visual Resources — the full chapter: visual-quality objectives, viewpoint selection, significance determination
• Public submission — line of sight to Camel Humps
• 05.2 Economic Development — how visual aesthetics affect tourism
• The valley map — pose the pit from any point you choose