Regulator-ready assurance
Assurance Evidence Pack
Generated directly from the live registers — nothing retyped. Pressure-system inspection, TARP monitoring, safety-critical element verification, safety-instrumented function proof testing, tailings dam safety and GISTM assurance actions, each with its governing requirement and accountable role.
AssetStack — Assurance Evidence Pack
Generated 10/27/2026, 2:29:14 AM. Values are as recorded in the platform at generation time; source records govern. Demonstration records are labelled as such in their names.
Pressure systems — inspection and relief register
API 510 / API 570 / API 653 / AS 3788 as applicable · 6 records| Tag | System | Design / inspection code | Min req / last (mm) | Last inspection | Max interval | Relief device / last test | Status | Governing requirement |
|---|---|---|---|---|---|---|---|---|
| AR-1 | CHPP plant air receiver AR-1 | AS 1210 | 9.2 / 10.6 | 9/12/2025 | 4 y | PSV-AR1 · 12/31/2025 | in_service | WHS Regulation 2017 (NSW) pressure equipment; AS/NZS 3788 in-service inspection |
| AR-3 | MIA workshop air receiver AR-3 | AS 1210 | 7.6 / 8.4 | 11/26/2024 | 4 y | PSV-AR3 · 10/2/2025 | in_service | WHS Regulation 2017 (NSW) pressure equipment; AS/NZS 3788 in-service inspection |
| DL-AR-1 | Dragline DL-01 brake air system receiver | AS 1210 | 10.8 / 12.1 | 4/10/2026 | 2 y | PSV-DL1 · 6/29/2026 | in_service | WHS Regulation 2017 (NSW) pressure equipment; AS/NZS 3788 in-service inspection |
| FP-100 | Fuel farm transfer piping | AS 4041 | 4.8 / 5.4 | 10/12/2025 | 5 y | PRV-FP1 · 4/10/2026 | in_service | WHS Regulation 2017 (NSW) pressure equipment; AS/NZS 3788 in-service inspection |
| FT-1 | Fuel farm bulk diesel tank FT-1 (2 ML) | API 653 / AS 1940 | 6 / 7.1 | 6/14/2025 | 5 y | — | in_service | WHS Regulation 2017 (NSW) pressure equipment; AS/NZS 3788 in-service inspection |
| FW-200 | CHPP fire water ring main | AS 2419.1 | 5.5 / 6.1 | 2/19/2026 | 5 y | PRV-FW1 · 9/2/2025 | derated | WHS Regulation 2017 (NSW) pressure equipment; AS/NZS 3788 in-service inspection |
Trigger action response plans — monitoring currency
Site TARPs / ground control and tailings management plans · 2 records| Plan | Subject | Parameter | Current | Declared level | Last measured | Source | Required interval |
|---|---|---|---|---|---|---|---|
| Dragline spoil movement TARP | Dragline spoil — Strip 13 | Survey displacement rate (mm/day) | 6.4 | level_1 | 10/25/2026, 6:00:00 AM | manual_survey | 24 h |
| Highwall Strip 14 displacement TARP | Highwall Strip 14 | Prism displacement rate (mm/day) | 3.1 | normal | 10/26/2026, 1:00:00 AM | instrument · PRISM-HW14-07 | 1 h |
Safety-critical elements — performance-standard verification
Principal hazard / major accident event management plans · 12 records| Element | Hazard | Performance standard | Verification method | Last verified | Next due | Status | Accountable role | Governing requirement |
|---|---|---|---|---|---|---|---|---|
| CHPP fire deluge | Fire in the CHPP | Deluge operates on detection; flow test 6-monthly | Flow test | 5/16/2026 | 11/14/2026 | verification_due | CHPP Superintendent | AS 1851 |
| Conveyor belt rip detection (CV-02) | Belt rip causing fire and long outage | Rip loops tested weekly; trip within 3 s of loop break | Functional loop test | 10/24/2026 | 10/31/2026 | failed | Fixed Plant Superintendent | Mechanical engineering control plan |
| Conveyor pull-wire emergency stops | Entanglement in conveyors | Every pull-wire trips the drive within 1 s; tested monthly | Pull-wire function test | 10/14/2026 | 11/13/2026 | effective | Fixed Plant Superintendent | WHS (MPS) Reg — mechanical engineering |
| Dragline boom structural monitoring | Structural failure of the dragline boom | Strain alarms acted on within one shift; NDT indications dispositioned before next operation | Review strain log and NDT register | 10/17/2026 | 10/24/2026 | overdue | Dragline Superintendent | Mechanical engineering control plan |
| HV isolation and earthing (dragline) | Electric shock and arc flash | Isolation verified by test-before-touch; earth leakage protection tested monthly | Earth leakage trip test | 9/23/2026 | 10/23/2026 | verification_due | Electrical Engineer | Electrical engineering control plan |
| Haul truck proximity detection | Vehicle interaction | All trucks fitted and reporting; alarm tested pre-start | System health report | 10/23/2026 | 10/30/2026 | effective | Mining Superintendent | Roads or other vehicle operating areas PHMP |
| Highwall prism monitoring | Ground failure (highwall) | Prism read every hour; TARP L1 at 5 mm/day | Survey data review | 10/26/2026 | 10/27/2026 | effective | Geotechnical Engineer | Ground or strata failure PHMP |
| Mine Water Dam wall inspection | Dam failure | Weekly inspection; piezometers read monthly | Inspection record | 10/22/2026 | 10/29/2026 | effective | Environment Superintendent | Dams Safety Act 2015 surveillance |
| Mobile plant fire suppression | Fire on mobile plant | Systems serviced 6-monthly to AS 5062; actuation tested | Service records | 6/1/2026 | 11/30/2026 | effective | Maintenance Superintendent | Fire or explosion PHMP |
| Spoil dump stability inspection | Ground failure (spoil) | Inspected each shift by the dragline supervisor; cracks reported | Shift inspection record | 10/25/2026 | 10/26/2026 | effective | Dragline Supervisor | Ground or strata failure PHMP |
| Stockpile thermal monitoring | Spontaneous combustion | Thermal scan daily; TARP L2 at 65 °C | Thermal camera survey | 10/26/2026 | 10/27/2026 | degraded | CHPP Superintendent | Spontaneous combustion management plan |
| Windrows on haul roads and dumps | Vehicle over edge | Windrow at least half wheel height of the largest vehicle | Road inspection | 10/21/2026 | 10/28/2026 | effective | Mining Supervisor | Roads or other vehicle operating areas PHMP |
Safety-instrumented functions — proof-test and PFD screening
IEC 61511 · PFDavg screened as λDU × TI / 2; SIL verification governs · 7 records| Tag | Hazardous event | SIL | Proof-test interval | Last proof test | Next due | Screened PFDavg | Bypassed | SRS / standard |
|---|---|---|---|---|---|---|---|---|
| SIF-CHPP-03 | CHPP floor flooding and electrical exposure | SIL 1 | 12 m | 9/22/2025 · pass | 9/22/2026 | 2.2e-3 (meets target) | No | AS IEC 61511; WHS (Mines) Regulation 2022 (NSW) principal hazard management |
| SIF-CV2-01 | Longitudinal belt rip propagating along the overland | SIL 1 | 6 m | 3/31/2026 · fail | 10/1/2026 | 1.3e-3 (meets target) | Yes | AS IEC 61511; WHS (Mines) Regulation 2022 (NSW) principal hazard management |
| SIF-CV2-02 | Person caught in moving conveyor | SIL 2 | 6 m | 7/24/2026 · pass_with_findings | 1/24/2027 | 3.3e-4 (meets target) | No | AS IEC 61511; WHS (Mines) Regulation 2022 (NSW) principal hazard management |
| SIF-DL-02 | Uncontrolled drag rope payout | SIL 2 | 12 m | 10/12/2025 · pass | 10/12/2026 | 7.9e-4 (meets target) | No | AS IEC 61511; WHS (Mines) Regulation 2022 (NSW) principal hazard management |
| SIF-DL-01 | Bucket overwind into boom point sheaves | SIL 2 | 12 m | 6/29/2026 · pass | 6/29/2027 | 8.8e-4 (meets target) | No | AS IEC 61511; WHS (Mines) Regulation 2022 (NSW) principal hazard management |
| SIF-FF-01 | Diesel tank overfill and pool fire | SIL 2 | 12 m | 12/1/2025 · pass | 12/1/2026 | 1.1e-3 (meets target) | No | AS IEC 61511; WHS (Mines) Regulation 2022 (NSW) principal hazard management |
| SIF-SZ-01 | Sizer jam overloading CV-01 feed chute | SIL 1 | 12 m | 5/20/2026 · pass | 5/20/2027 | 1.8e-3 (meets target) | No | AS IEC 61511; WHS (Mines) Regulation 2022 (NSW) principal hazard management |
Tailings facilities — dam safety register
GISTM / ANCOLD · engineer of record · 2 records| Facility | Consequence class | Construction | Freeboard / min (m) | FoS drained / undrained / min | Last dam safety inspection | Last independent review | Engineer of record | EPRP / last tested |
|---|---|---|---|---|---|---|---|---|
| Fine rejects emplacement FRE-1 | low | downstream | 2.1 / 1 | 1.84 / 1.55 / 1.3 | 9/17/2026 | 12/31/2025 | Engineer of Record (contracted geotechnical consultant) | In place · 5/30/2026 |
| In-pit tailings cell TC-2 | significant | in_pit | 1.4 / 1 | 1.62 / 1.38 / 1.3 | 8/14/2026 | 9/12/2025 | Engineer of Record (contracted geotechnical consultant) | In place · 4/10/2026 |
Tailings assurance actions
GISTM requirements, ITRB actions, EPRP drills · 6 records| Facility | Item | GISTM reference | Accountable role | Due | Status | Closed |
|---|---|---|---|---|---|---|
| Fine rejects emplacement FRE-1 | Consequence classification review, FRE-1 | GISTM 4.1 | Technical Services Manager | 8/28/2026 | closed | 8/28/2026 · Technical Services Manager |
| Fine rejects emplacement FRE-1 | Annual dam safety inspection, FRE-1 | Dams Safety NSW | Engineer of Record | 9/17/2026 | closed | 9/17/2026 · Engineer of Record |
| In-pit tailings cell TC-2 | Update TC-2 water balance for the surplus season | GISTM 4.7 | Environment & Community Superintendent | 10/21/2026 | open | — |
| In-pit tailings cell TC-2 | EoR review of piezometer VP-4 trigger exceedance | GISTM 7.2 | Engineer of Record | 11/1/2026 | in_progress | — |
| In-pit tailings cell TC-2 | Annual dam safety inspection, TC-2 | Dams Safety NSW | Engineer of Record | 11/13/2026 | open | — |
| In-pit tailings cell TC-2 | Emergency preparedness drill, TC-2 | GISTM 13.1 | Emergency Response Coordinator | 11/26/2026 | open | — |