{ "schemaVersion": 1, "catalogId": "woodfibre-proposed-flare-sources-2026-10-23", "preparedDate": "2026-11-05", "title": "Woodfibre proposed flare-system source rates", "document": { "title": "Environmental Protection Notice", "applicationNumber": "455458", "date": "2026-10-23", "templateVersionDate": "2026-06-03", "sourceUrl": "https://www.bc-er.ca/files/documents/EPN-Notices/05_epd-ema-10_env_protection_notice_WLNG-WDA-Air.pdf", "sha256": "569f0aa9a757b6efceebfb74e282e90dc851e92e58e8983cd0c3ed5748add3fe", "bytes": 284288, "pdfPages": 4, "status": "Notice of proposed application; not evidence of approved permit limits" }, "status": "Proposed application inputs, not approved limits, actual emissions or environmental validation", "speciesOrder": [ "PM25", "NOx", "CO", "VOC", "SO2", "H2S", "TRS" ], "profileOrder": [ "HP_STABILIZING_2026", "LP_STABILIZING_2026", "HP_STEADY_2026", "LP_STEADY_2026", "HP_UPSET_2026", "LP_UPSET_2026", "HP_VENT_2026" ], "unitBasis": { "contaminants": "kg/h", "rateMeaning": "Maximum/design emission rates used for WDA assessment, converted in document from g/s", "gPerSecondConversion": "kg/h divided by 3.6", "gasFlow": "sm³/h dry at 101.325 kPa and 20°C", "unreportedValue": null, "noNullToZero": true }, "sources": [ { "id": "HP_STABILIZING_2026", "sourceRowId": "hp-stabilizing", "label": "HP flare · stabilizing operations", "sourceFamily": "2026-proposed-application", "status": "Proposed maximum/design rates; not measured emissions or approved permit limits", "documentDate": "2026-10-23", "applicationNumber": "455458", "flareSystem": "HP", "operation": "stabilizing", "emissionMechanism": "combustion", "sourceClass": "continuous", "defaultChemical": "PM25", "reportedKgPerHour": { "PM25": 0.19, "NOx": 4.52, "CO": 18.61, "VOC": 39.6, "SO2": 0.19, "H2S": null, "TRS": null }, "rateGs": { "PM25": 0.05277777777777778, "NOx": 1.2555555555555553, "CO": 5.169444444444444, "VOC": 11.0, "SO2": 0.05277777777777778, "H2S": null, "TRS": null }, "availability": { "PM25": "reported", "NOx": "reported", "CO": "reported", "VOC": "reported", "SO2": "reported", "H2S": "not-reported-in-this-table", "TRS": "not-reported-in-this-table" }, "inputGasSm3h": 3887, "exhaustOrVentGasSm3h": null, "gasFlowBasis": "sm³/h dry at 101.325 kPa and 20°C", "lifecycle": { "years": [ 1, 2 ], "source": "p2 note e", "compositionDescription": "Steady-state streams plus additional gas from passing valves", "description": "First two years of operation; steady-state streams plus passing-valve gas." }, "duration": { "kind": "analysis-window", "defaultMinutes": 1440, "reportedEventMaximumMinutes": null, "isReportedEventDuration": false, "continuousSource": true, "physicalStopAtWindowEnd": false, "label": "24-hour analysis window for continuous operation", "assumption": "Hold the proposed maximum/design rate constant during the selected analysis window. 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Flare buoyancy and vent momentum are not calculated; this is not an effective plume height.", "pdfPages": [ 194, 195 ], "table": "DMP Table 6.5", "printedPages": [ 30, 31 ] }, "sourceBasis": { "rateMeaning": "Maximum/design emission rates used for WDA assessment, converted in document from g/s", "conversion": "g/s = kg/h / 3.6; no intermediate rounding", "sourceUrl": "https://www.bc-er.ca/files/documents/EPN-Notices/05_epd-ema-10_env_protection_notice_WLNG-WDA-Air.pdf", "pdfPage": 3, "table": 2, "rowLabel": "LP flare: process upset / subsequent restart", "sourceSha256": "569f0aa9a757b6efceebfb74e282e90dc851e92e58e8983cd0c3ed5748add3fe", "nitrogenOxidesMassBasis": "NOx as reported; the notice does not explicitly state a NO2-equivalent mass convention or NO/NO2 fraction", "vocBasis": "Unspeciated total VOC; no benzene or individual-compound rate inferred", "trsH2sRelationship": "TRS may include H2S; do not add them as non-overlapping species totals", "missingValueMeaning": "Null is unavailable/not applicable in the specified source row, not a measured zero or a whole-site emission claim", "jointHpLpOperation": "Separate source row only; no combined HP/LP release or simultaneous time series inferred" }, "adoptionScope": "Use these rates as separate conditional source scenarios. Do not inherit 2014/2015 durations, heat, geometry or AERSCREEN coefficients." }, { "id": "HP_VENT_2026", "sourceRowId": "hp-oxidizer-trip-vent", "label": "HP flare system · oxidizer trip / venting", "sourceFamily": "2026-proposed-application", "status": "Proposed maximum/design rates; not measured emissions or approved permit limits", "documentDate": "2026-10-23", "applicationNumber": "455458", "flareSystem": "HP", "operation": "oxidizerTripVenting", "emissionMechanism": "venting", "sourceClass": "intermittent", "defaultChemical": "VOC", "reportedKgPerHour": { "PM25": null, "NOx": null, "CO": null, "VOC": 42.3, "SO2": null, "H2S": 3.41, "TRS": 5.98 }, "rateGs": { "PM25": null, "NOx": null, "CO": null, "VOC": 11.749999999999998, "SO2": null, "H2S": 0.9472222222222222, "TRS": 1.6611111111111112 }, "availability": { "PM25": "not-applicable-to-diverted-vent-streams", "NOx": "not-applicable-to-diverted-vent-streams", "CO": "not-applicable-to-diverted-vent-streams", "VOC": "reported", "SO2": "not-applicable-to-diverted-vent-streams", "H2S": "reported", "TRS": "reported" }, "inputGasSm3h": 8845, "exhaustOrVentGasSm3h": 8845, "gasFlowBasis": "sm³/h dry at 101.325 kPa and 20°C", "lifecycle": { "eventsPerYear": 2, "statedTotalHours": 96, "source": "Notice PDF page 3 note e; DMP Table 6.5, package PDF page 194 (printed page 30)", "combustionOfDivertedStreams": false, "note": "Acid gas, high-pressure flash gas and condensate vapour routed to the flare system are vented. The notice gives 2 events and 96 total hours per year; DMP Table 6.5 explicitly gives up to 48 hours per event. These are assessment assumptions, not measured occurrence or final permit constraints.", "description": "Unavailable thermal oxidizer; diverted acid gas, high-pressure flash gas and condensate vapour are vented." }, "duration": { "kind": "reported-maximum-event-duration", "defaultMinutes": 2880, "reportedEventMaximumMinutes": 2880, "isReportedEventDuration": true, "continuousSource": false, "physicalStopAtWindowEnd": null, "label": "Up to 48 hours per event; Explorer shows only the first 24 hours", "assumption": "Hold the notice maximum/design rate constant for a selected duration up to the DMP 48-hour event limit; display only the first 24 hours from a clean start. The annual 96-hour total is not divided to infer this limit.", "reportedAnnualTotalHours": 96, "reportedEventsPerYear": 2, "reportedPerEventHours": 48, "durationSource": "DMP Table 6.5, package PDF page 194 (printed page 30), explicitly states up to 48 hours per event. Notice Table 2 note e, PDF page 3, separately gives 2 events and 96 total hours per year.", "sourceUrl": "https://woodfibrelng.ca/wp-content/uploads/2026/10/Woodfibre-LNG-Project_WDA-Air-Emissions-Permit-Application-Package.pdf", "sourcePdfPages": [ 194, 195 ], "sourceTable": "DMP Table 6.5, printed pages 30–31" }, "defaultDurationMinutes": 2880, "geometry": { "status": "Physical geometry from the current submitted application; no calculated plume rise", "coordinatesLonLat": [ -123.24937994185947, 49.66825777945517 ], "groundElevationMasl": 8.5, "physicalTipHeightAGLm": 134.0, "physicalTipAltitudeMasl": 142.5, "tipDiameterM": 1.2, "sourceUrl": "https://woodfibrelng.ca/wp-content/uploads/2026/10/Woodfibre-LNG-Project_WDA-Air-Emissions-Permit-Application-Package.pdf", "pdfPage": 194, "heightNote": "The initial injection is the derived physical tip altitude: reported grade elevation plus reported physical stack height. Flare buoyancy and vent momentum are not calculated; this is not an effective plume height.", "exitTemperatureK": 318, "exitVelocityMs": 2.4, "pdfPages": [ 194, 195 ], "table": "DMP Table 6.5", "printedPages": [ 30, 31 ], "parameterCitations": { "coordinatesGradeHeightDiameterAndVentVelocity": { "pdfPage": 194, "printedPage": 30, "table": "DMP Table 6.5" }, "ventTemperature": { "pdfPage": 195, "printedPage": 31, "table": "DMP Table 6.5" } } }, "sourceBasis": { "rateMeaning": "Maximum/design emission rates used for WDA assessment, converted in document from g/s", "conversion": "g/s = kg/h / 3.6; no intermediate rounding", "sourceUrl": "https://www.bc-er.ca/files/documents/EPN-Notices/05_epd-ema-10_env_protection_notice_WLNG-WDA-Air.pdf", "pdfPage": 3, "table": 2, "rowLabel": "HP flare system: thermal oxidizer trip / venting", "sourceSha256": "569f0aa9a757b6efceebfb74e282e90dc851e92e58e8983cd0c3ed5748add3fe", "nitrogenOxidesMassBasis": "NOx as reported; the notice does not explicitly state a NO2-equivalent mass convention or NO/NO2 fraction", "vocBasis": "Unspeciated total VOC; no benzene or individual-compound rate inferred", "trsH2sRelationship": "TRS may include H2S; do not add them as non-overlapping species totals", "missingValueMeaning": "Null is unavailable/not applicable in the specified source row, not a measured zero or a whole-site emission claim", "jointHpLpOperation": "Separate source row only; no combined HP/LP release or simultaneous time series inferred" }, "adoptionScope": "Use these rates as separate conditional source scenarios. Do not inherit 2014/2015 durations, heat, geometry or AERSCREEN coefficients." } ], "notIncludedAsCases": { "commissioning": "A separate commissioning case is reported in DMP Table 6.3, package PDF pages 188–189 (printed pages 24–25), but is not adopted in this seven-profile notice-based catalogue. It must not be represented by the process-upset rates; VOC is not reported in that DMP table.", "otherFacilitySources": "Furnace, thermal oxidizer and diesel sources remain separate notice records; this seven-profile catalogue does not represent the complete facility.", "combinedOrCumulative": "No simultaneous HP/LP, other facility, FortisBC, vessel or ambient-background contribution is added." }, "provenance": { "auditSourceFile": "current-notice-evidence.json", "auditSourceSha256": "98ab70c5eb2eeebc56c275d2b4a59799c9327731ce23f93076f2d60b8f293e43", "transcriptionReview": { "rendering": "pdftoppm scale-to1800 PNG; all4pages visually inspected", "confirmed": "Headers, numerical cells, footnotes and signeddate; generators/pumps12868/2297 are exhaust flow, input cells blank." }, "reviewStatus": "AI-assisted source transcription and software checks; no external human review or endorsement", "historicalSourceMixing": "No 2014/2015 inventory quantity or duration is used to calculate these proposed rates." }, "supportingApplication": { "title": "Woodfibre LNG Project WDA Air Emissions Permit Application Package", "url": "https://woodfibrelng.ca/wp-content/uploads/2026/10/Woodfibre-LNG-Project_WDA-Air-Emissions-Permit-Application-Package.pdf", "indexUrl": "https://woodfibrelng.ca/about-woodfibre-lng/regulatory-overview/regulatory-filings/", "indexEntry": "Applications: WDA Air Emissions application 455458", "retrievedDate": "2026-11-05", "technicalAssessmentAndDispersionPlanDate": "2026-10-16", "pdfPages": 4149, "bytes": 120572361, "sha256": "3e48a58676379cfca88dce6003d139b332d79f37f0ffead146b5661f7cadf536", "provenance": "Applicant-hosted submission linked from official applicant regulatory filings page; proposed design and assessment, not approved permit or monitoring record" }, "coordinateTransformation": { "sourceEPSG": 26910, "targetEPSG": 4326, "library": "pyproj", "version": "3.6.1", "projVersion": "9.3.0", "alwaysXY": true, "description": "Inverse of UTM zone 10N + NAD83 to WGS 84 (1) + axis order change (2D)", "accuracyM": 4.0, "note": "Horizontal NAD83 UTM10 to WGS84 transformation only. No vertical datum conversion;8.5mASL remains the applicant grade datum." }, "knownHeatDiscrepancy": { "topic": "Normal heat input", "tarPdfPage": 63, "tarPrintedPage": 15, "tarTable": "3.4", "tarHeatInputMW": { "HP": 6.1, "LP": 4.1 }, "dmpPdfPage": 184, "dmpPrintedPage": 20, "dmpTable": "6.2", "dmpHeatInputMW": { "HP": 11.7, "LP": 5.28 }, "note": "Same source flows1204 and557sm3/h. Geometry agrees. Do not silently resolve heat discrepancy; detailed DMP values agree approximately with listed flow multiplied by HHV." } }