[Company Address, City, Country]
Excavation, Testing & Commissioning
| DOCUMENT IDENTIFICATION | |||
|---|---|---|---|
| Document No. | [RPZ-MS-BLAST-001] | Revision | Rev 00 |
| Project Name | [PROJECT NAME] | Date of Issue | [DD/MM/YYYY] |
| Site / Location | [SITE NAME, COUNTRY] | Classification | RESTRICTED |
| Client | [CLIENT NAME] | Contract No. | [CONTRACT REF] |
| Discipline | Civil / Geotechnical / Blasting | Risk Matrix | 5 × 5 (Likelihood × Severity) |
| Role | Name | Signature | Date |
|---|---|---|---|
| Prepared By | [Name / Title] | [Date] | |
| Reviewed By | [Name / Title] | [Date] | |
| Approved By | [Name / Title] | [Date] | |
| Client Approval | [Name / Title] | [Date] |
- 1. Document Control & Revision History3
- 1.1 Distribution List3
- 2. Purpose & Scope4
- 2.1 Objectives4
- 2.2 Applicability & Exclusions4
- 3. Legal & Regulatory Compliance Framework4
- 4. Definitions & Abbreviations5
- 5. Responsibilities & Project Team (RACI)6
- 6. Plant, Equipment & Materials7
- 6.1 Explosives & Accessories7
- 6.2 Plant & Machinery7
- 7. Pre-Task Requirements8
- 7.1 Permits to Work8
- 7.2 Pre-Blast Inspection Checklist8
- 7.3 Toolbox Talk & Briefing8
- 8. Sequence of Work — Step-by-Step Method9
- 9. Risk Assessment & Control Measures12
- 9.1 Hierarchy of Controls12
- 9.2 Hazard Register — 5×5 Risk Matrix12
- 10. PPE Requirements15
- 11. Environmental Controls16
- 11.1 Environmental Aspect & Impact Register16
- 12. Emergency Procedures & First Aid17
- 13. Quality Control — Inspection & Test Plan (ITP)18
- 14. Training & Competency Requirements19
- 15. Approval & Sign-off Block20
- Appendix A — References & Related Documents21
- Appendix B — Revision History Log22
1Document Control & Revision History
| Rev. | Date | Description of Change | Prepared By | Reviewed By | Approved By |
|---|---|---|---|---|---|
| 00 | [DD/MM/YYYY] | Initial Issue — First Release for Review and Approval | [Name] | [Name] | [Name] |
| 01 | [DD/MM/YYYY] | [Describe revision] | [Name] | [Name] | [Name] |
1.1 Distribution List
Add all individuals/departments who must receive a controlled copy of this document.
| Copy No. | Recipient Name / Position | Company / Department | Copy Type | Date Issued |
|---|---|---|---|---|
| 01 | Project Manager | [COMPANY] | Controlled (Electronic) | [Date] |
| 02 | Site HSE Manager | [COMPANY] | Controlled (Electronic) | [Date] |
| 03 | Licensed Shot Firer | [COMPANY] | Controlled (Printed) | [Date] |
| 04 | Blasting Supervisor | [COMPANY] | Controlled (Printed) | [Date] |
| 05 | Client Representative | [CLIENT] | Controlled (Electronic) | [Date] |
| 06 | Regulatory Authority | [AUTHORITY NAME] | Controlled (If required) | [Date] |
2Purpose & Scope
This Method Statement (MS) defines the controlled, safe, and environmentally responsible procedures for conducting controlled blasting operations for rock excavation, testing and commissioning at [SITE NAME]. It forms a key component of the project's safe system of work and must be read in conjunction with the associated Risk Assessment, Blast Design Report, and Environmental Management Plan.
2.1 Objectives
- Define clear, step-by-step work sequences that eliminate or minimise risk to personnel, third parties, the environment and property.
- Ensure full compliance with all applicable legislation, standards and client requirements.
- Establish roles, responsibilities and authorities for all blasting personnel.
- Provide the basis for pre-task briefings (toolbox talks), permits to work, and inspection hold-points.
- Meet the requirements of ISO 45001:2018, ISO 9001:2015, ISO 14001:2015 and ISO 31000:2018.
2.2 Applicability & Exclusions
This document applies to all controlled blasting operations including rock breaking, rock excavation, bulk earthworks and trial blasts at [PROJECT SITE]. It applies to all direct employees, subcontractors and their personnel engaged in blasting activities.
Exclusions: This MS does not cover demolition blasting, underwater blasting, or pyrotechnic operations unless specifically amended and re-approved.
3Legal & Regulatory Compliance Framework
| Reference Code | Full Title | Issuing Body | Applicable Clause | Relevance to This Document | Obligation |
|---|---|---|---|---|---|
| ISO 45001:2018 | Occupational Health and Safety Management Systems — Requirements with Guidance for Use | ISO (International) | Clauses 6.1, 8.1, 8.2 | Mandates hazard identification, risk assessment, operational planning and emergency preparedness for all high-risk activities including blasting | MANDATORY |
| ISO 9001:2015 | Quality Management Systems — Requirements | ISO (International) | Clauses 8.1, 8.5, 9.1 | Governs controlled operational procedures, inspection and test plans, non-conformance reporting, and document control for blasting activities | MANDATORY |
| ISO 14001:2015 | Environmental Management Systems — Requirements with Guidance for Use | ISO (International) | Clauses 6.1.2, 8.1, 8.2 | Requires identification of environmental aspects and impacts (noise, vibration, dust, fume, groundwater) associated with blasting and implementation of mitigation controls | MANDATORY |
| ISO 31000:2018 | Risk Management — Guidelines | ISO (International) | Clauses 6.3, 6.4, 6.5 | Provides the principles and framework for risk identification, analysis, evaluation and treatment applied in the Hazard Register and blast risk planning process | ADVISORY |
4Definitions & Abbreviations
| Term / Abbreviation | Definition |
|---|---|
| Controlled Blasting | The use of explosives in a predetermined, engineered manner to break, loosen or displace rock with minimised adverse effects on surrounding structures, personnel and environment. |
| Shot Firer / Blaster | A competent, licensed individual authorised by the relevant national authority to handle, prepare and detonate explosive charges. |
| Blast Design Report | The engineered document specifying drill pattern, hole depth/diameter, explosive type/quantity, delay timing, stemming and safety exclusion zones for a specific blast. |
| Exclusion Zone | The controlled area from which all personnel, equipment and vehicles must be evacuated prior to and during detonation. Distance determined by blast design. |
| Misfire | A charge or part of a charge that has failed to detonate as intended. Requires specific emergency procedure. |
| Flyrock | Rock fragments propelled beyond the intended blast area due to excessive explosive energy or stemming failure. Principal hazard of blasting operations. |
| Ground Vibration (PPV) | Peak Particle Velocity — the measured ground vibration from blasting, expressed in mm/s. Used to assess structural damage risk. |
| PTW | Permit to Work — formal written authorisation system. |
| ITP | Inspection and Test Plan — quality document identifying hold points, witness points and acceptance criteria. |
| ANFO | Ammonium Nitrate Fuel Oil — common bulk explosive used in open-face blasting. |
| RACI | Responsible, Accountable, Consulted, Informed — responsibility assignment matrix. |
| PPV | Peak Particle Velocity — unit: mm/s. |
| OHS / HSE | Occupational Health and Safety / Health, Safety and Environment. |
| NOx / CO | Nitrogen Oxides / Carbon Monoxide — post-blast fumes requiring atmospheric clearance before re-entry. |
5Responsibilities & Project Team (RACI)
The table below defines the roles and responsibilities for all personnel involved in blasting operations. R = Responsible | A = Accountable | C = Consulted | I = Informed.
| Activity / Duty | Project Manager | HSE Manager | Blasting Supervisor | Licensed Shot Firer | Drill Operator | Safety Officer | Client Rep. |
|---|---|---|---|---|---|---|---|
| Blast Design Approval | A | C | R | C | I | C | I |
| Permit to Work Authorisation | A | R | C | C | I | R | I |
| Explosives Receipt & Storage | I | C | A | R | I | C | I |
| Drilling Operations | I | C | A | C | R | C | I |
| Hole Loading & Charging | I | C | A | R | I | C | I |
| Exclusion Zone Establishment | I | C | R | R | C | R | I |
| Detonation Command | I | C | A | R | I | C | I |
| Post-Blast Inspection | I | C | A | R | I | C | C |
| Misfire Management | I | R | A | R | I | R | I |
| Environmental Monitoring | I | R | C | C | I | R | I |
| Incident Reporting | A | R | C | C | C | R | I |
| ITP / Quality Sign-off | A | C | R | C | I | C | R |
6Plant, Equipment & Materials
6.1 Explosives & Accessories
| Item | Specification / Type | Quantity (Approx.) | Storage Requirements |
|---|---|---|---|
| Bulk Explosive (ANFO) | Ammonium Nitrate Fuel Oil — Class 1.5D | [As per Blast Design] | Licensed explosives magazine; segregated from detonators |
| Emulsion Explosive | Heavy ANFO / Emulsion blend — Class 1.1D | [As per Blast Design] | Licensed explosives magazine; temperature controlled |
| Non-Electric Detonators (NONEL) | Shock tube, delay detonators — LP/MS series | [As per Blast Design] | Separate certified storage; away from heat/impact sources |
| Electronic Detonators | Programmable electronic delay — Class 1.4B | [As per Blast Design] | Manufacturer-specified conditions; coded programming unit |
| Detonating Cord | PETN core, 10–40 g/m | [As per Blast Design] | Licensed magazine; protected from sunlight |
| Boosters / Cast Boosters | PETN/TNT composite — Class 1.1D | [As per Blast Design] | Licensed magazine |
| Stemming Material | Crushed aggregate / drill cuttings, 6–12mm | [As per Blast Design] | On-site stockpile, clean and dry |
6.2 Plant & Machinery
| Equipment | Specification | Pre-Use Inspection | Operator Competency |
|---|---|---|---|
| Rotary/DTH Drill Rig | [Make/Model] — 90–165mm diameter | Daily pre-start checklist | Licensed drill operator + site induction |
| Bulk Emulsion Delivery Truck (MEMU) | Mobile Explosives Manufacturing Unit — certified | Pre-use inspection by Shot Firer | Licensed operator + hazmat certification |
| Excavator / Dozer | [Make/Model] — for muck removal | Daily pre-start checklist (PSSR) | Plant operator licence + site induction |
| Ground Vibration Monitor | Seismograph — calibrated; PPV range 0–254 mm/s | Calibration certificate current | HSE Officer trained in data collection |
| Air Overpressure Monitor | Sound level meter — calibrated ≤12 months | Calibration certificate current | HSE Officer |
| Blasting Machine / Logger | Electronic initiation system — approved type | Pre-use function test by Shot Firer | Licensed Shot Firer only |
7Pre-Task Requirements
7.1 Permits to Work (PTW)
The following Permits to Work must be issued, authorised and displayed at the blast site prior to commencing any blasting activity:
| Permit Type | Issuing Authority | Validity Period | Prerequisites |
|---|---|---|---|
| Blasting / Explosives Permit | HSE Manager + Regulatory Authority | Per blast event | Blast Design approved, exclusion zone confirmed, emergency services notified |
| Excavation Permit | Site Engineer / HSE Manager | Per shift | Underground service survey completed, ground stability confirmed |
| Hot Work Permit | Site HSE Officer | Per task, max 12h | Only if welding/cutting adjacent to blast area |
| Confined Space Entry Permit | Site HSE Manager | Per entry | Only if blasting in tunnel/confined excavation context |
| Ground Disturbance Permit | Site Engineer | Per area | Underground utilities survey (RFI / As-built drawings reviewed) |
7.2 Pre-Blast Inspection Checklist
| # | Inspection Item | Responsible | Status |
|---|---|---|---|
| 1 | Blast Design Report reviewed and approved by authorised Blasting Engineer | Blasting Supervisor | ☐ Pass / ☐ Fail / ☐ N/A |
| 2 | All permits to work issued, signed and displayed at site | HSE Officer | ☐ Pass / ☐ Fail / ☐ N/A |
| 3 | Explosives receipted and verified against delivery manifest; condition checked | Licensed Shot Firer | ☐ Pass / ☐ Fail / ☐ N/A |
| 4 | Drill holes surveyed — diameter, depth, inclination verified against design | Site Engineer | ☐ Pass / ☐ Fail / ☐ N/A |
| 5 | Exclusion zone barriers, signage and access control established | Blasting Supervisor | ☐ Pass / ☐ Fail / ☐ N/A |
| 6 | Ground vibration and air overpressure monitors positioned and operational | HSE Officer | ☐ Pass / ☐ Fail / ☐ N/A |
| 7 | Emergency services notified (timing and location of blast communicated) | HSE Manager | ☐ Pass / ☐ Fail / ☐ N/A |
| 8 | Warning sirens/horns tested and confirmed operational | Shot Firer | ☐ Pass / ☐ Fail / ☐ N/A |
| 9 | All personnel and plant evacuated beyond exclusion zone; headcount confirmed | Blasting Supervisor | ☐ Pass / ☐ Fail / ☐ N/A |
| 10 | Weather conditions checked — wind speed/direction, lightning risk assessed | HSE Officer | ☐ Pass / ☐ Fail / ☐ N/A |
| 11 | Communications (radios) tested between Shot Firer, sentries and supervisor | Shot Firer | ☐ Pass / ☐ Fail / ☐ N/A |
| 12 | First aid equipment and emergency vehicle confirmed available on site | HSE Officer | ☐ Pass / ☐ Fail / ☐ N/A |
7.3 Toolbox Talk & Pre-Blast Briefing
A formal pre-blast toolbox talk shall be conducted by the Blasting Supervisor prior to each blast event and shall cover:
- Scope and timing of the blast; method of initiation
- Exclusion zone boundaries and evacuation routes
- Warning signal protocol (see Section 8, Step 11)
- Emergency muster point and headcount procedure
- Misfire and re-entry protocol
- Roles and responsibilities during the blast event
Attendance register to be completed and retained by HSE Officer. Form Ref: RPZ-TBT-BLAST-F01.
8Sequence of Work — Step-by-Step Method
| Step | Activity Description | Responsible | Key Controls | Risk Ref. |
|---|---|---|---|---|
| 01 | Site Preparation & Survey Establish construction boundary, survey rock surface, confirm existing service locations (underground utilities), prepare drill platform and access roads. |
Site Engineer / Supervisor | Cable/pipe detection (GPR survey); ground stability assessment; exclusion of all non-essential personnel; traffic management plan activated. | RA-01, RA-02 |
| 02 | Blast Design Development Geotechnical Engineer develops blast design specifying: hole layout, burden, spacing, hole depth, explosive type and quantity, delay sequence, stemming length and predicted PPV levels. |
Blasting Engineer | Design peer-reviewed; comply with approved blast plan; PPV limits checked against site-specific limits (typically ≤5–12 mm/s for residential structures); design submitted to client/authority for approval where required. | RA-03 |
| 03 | Regulatory Notifications & Permit Issuance Notify relevant authorities (police, environmental agency, local municipality) as required. Issue all PTWs. Confirm blast schedule with client and emergency services. |
HSE Manager / Project Manager | Written notification to authorities with required notice period; blast schedule shared with emergency services; all permits signed before proceeding. | RA-04 |
| 04 | Explosives Procurement & Receipt Order explosives through licensed supplier only. Receive explosives at site — verify delivery manifest, inspect condition, record batch numbers and quantities. |
Licensed Shot Firer | Explosives received only by licensed Shot Firer; all documentation completed; reject any damaged or deteriorated product; quantities matched to blast design. | RA-05, RA-06 |
| 05 | Explosives Storage Transfer explosives to licensed on-site magazine. Segregate initiators (detonators) from bulk explosives. Maintain explosives register. |
Licensed Shot Firer | Magazine compliant with local explosives regulations; detonators in separate magazine; no smoking/naked flame within 50m; magazine locked and alarmed; daily stock reconciliation. | RA-05, RA-06 |
| 06 | Drilling Operations Drill blast holes to design specifications (diameter, depth, inclination and pattern). Conduct drill and blast trial if required. Survey and record as-drilled positions. |
Drill Operator / Site Engineer | Pre-start checklist for drill rig; driller to remain in cab during drilling; minimum 15m exclusion from active drill face for others; dust suppression (water injection or DEH); hearing protection mandatory; GPS/survey confirmation of hole positions. | RA-07, RA-08 |
| 07 | Hole Preparation & Logging Clean drill holes of cuttings. Probe holes for stability. Record water ingress level. Confirm against design prior to charging. |
Shot Firer / Site Engineer | Use wooden probing rods only (no metal); note anomalous holes on blast record; consult Engineer if hole conditions deviate from design; adjust charge if water present. | RA-09 |
| 08 | Explosives Charging (Loading) Transfer explosives from magazine to blast site under escort. Load explosive charges into drill holes in accordance with blast design. Install boosters, detonating cord and detonators per design. |
Licensed Shot Firer (only) | Only licensed Shot Firer charges holes; minimum number of personnel in blast area during charging; no smoking, open flame or radio transmitters within exclusion zone; use non-sparking tools; maintain loaded hole manifest; protect charged holes from weather. | RA-05, RA-10, RA-11 |
| 09 | Stemming Stem drill holes with approved inert material (crushed aggregate) to design stemming length. Ensure stemming is properly consolidated. |
Shot Firer / Blast Team | Use approved stemming material only (no drill cuttings for top bench); correct stemming length per design to prevent flyrock; do not stem over un-detonated connections; final check by Shot Firer. | RA-12 |
| 10 | Tie-In & Connection Check Connect initiation circuit (NONEL trunk line / electronic detonator harness). Complete circuit continuity check. Conduct final connection walkover inspection. |
Licensed Shot Firer | Check all connections against blast design; continuity test with approved blasting galvanometer only; do not connect to blasting machine until all-clear given; check for stray electrical currents (electronic detonators). | RA-13 |
| Step | Activity Description | Responsible | Key Controls | Risk Ref. |
|---|---|---|---|---|
| 11 | Evacuation & Exclusion Zone Activation Sound three (3) long horn blasts. Conduct headcount. Deploy sentries at all access points. Confirm all persons beyond exclusion zone boundary. |
Blasting Supervisor / Shot Firer | Warning signal protocol posted at site; minimum 4 sentries for multi-access site; radio confirmation from all sentries before proceeding; roll call/headcount documented; no exceptions to evacuation. | RA-14 |
| 12 | Final Blast Clearance Check Shot Firer conducts final visual sweep of blast area. Confirms with all sentries via radio. Obtains verbal all-clear from Blasting Supervisor. |
Licensed Shot Firer | Radio confirmation from every sentry required; Shot Firer must have authority to abort if any doubt; weather conditions re-checked (wind, lightning); all monitoring equipment recording. | RA-14, RA-15 |
| 13 | Initiation / Detonation Connect blasting machine/logger. Sound one (1) long continuous horn blast (final warning). Initiate blast from protected firing position. |
Licensed Shot Firer (ONLY) | Shot Firer takes cover in blast shelter or ≥300m distance; blasting machine connected only at moment of firing; electronic logger records all firing data; abort if connections fail; single point of control. | RA-15, RA-16 |
| 14 | Post-Blast Wait Period Mandatory minimum wait of 30 minutes after last detonation before re-entry. Wait for dust and fume to dissipate. Sound two (2) short horn blasts to indicate waiting period active. |
Blasting Supervisor | 30-minute minimum wait mandatory (adjust to site/local regulation); monitor wind direction; atmospheric gas check (CO, NOx) before re-entry if confined conditions; do not reduce wait period for any reason. | RA-17 |
| 15 | Post-Blast Inspection Shot Firer conducts initial re-entry alone. Visually inspects all blast holes for misfires. Counts detonated holes against loaded manifest. Checks for unstable rock faces. |
Licensed Shot Firer | Shot Firer re-enters alone; gas detector carried; wear full PPE; do not disturb any suspected misfire; report misfire immediately to Supervisor; no other person enters until written all-clear issued. | RA-17, RA-18 |
| 16 | All-Clear & General Re-Entry If no misfires confirmed — Shot Firer radios all-clear. Sound four (4) short horn blasts. Personnel and plant may re-enter blast area. |
Shot Firer / Blasting Supervisor | Written all-clear on blast record form; re-entry in controlled sequence (supervisor first, then workers); barricade any unstable areas; continual monitoring of atmospheric conditions. | RA-17 |
| 17 | Misfire Procedure (If Required) If misfire identified — maintain exclusion zone. Do not disturb misfired hole for minimum 30 minutes. Notify HSE Manager and client. Follow approved misfire protocol (water flush / re-drill offset / controlled re-blast). |
Licensed Shot Firer / HSE Manager | Only approved misfire procedures permitted; do not drill into misfired hole; do not use heat; water flush method preferred; re-drill must be offset min 300mm from original hole; all misfires reported in writing and investigated; regulatory notification if required. | RA-18 |
| 18 | Muck Removal & Face Scaling Excavators remove blasted material. Geotechnical Engineer inspects excavated face for stability. Scale loose rock from faces. Survey blast result against design. |
Excavator Operator / Geotechnical Engineer | Exclusion zone for excavator working radius; face scaling by competent scaler; no personnel below unsupported face; survey results recorded for blast performance assessment. | RA-19, RA-20 |
| 19 | Explosives Reconciliation & Return Reconcile all explosives used against blast design and delivery records. Return unused explosives to magazine immediately. Complete explosives register. |
Licensed Shot Firer | Zero tolerance for unaccounted explosives; all returns verified by supervisor; magazine records updated; unused detonators segregated and returned separately; report any discrepancy immediately. | RA-05 |
| 20 | Post-Blast Documentation & Reporting Complete Blast Report (PPV results, air overpressure, detonation record). Non-conformances reported. Blast performance assessed against design. Records retained per document control requirements. |
Blasting Supervisor / HSE Manager | All monitoring data recorded; vibration/noise limits compliance confirmed; any exceedance reported to client and authority within prescribed timeframe; records retained minimum 7 years (or per regulatory requirement). | RA-21 |
9Risk Assessment & Control Measures
9.1 Hierarchy of Controls
All control measures are applied in accordance with ISO 45001:2018 Clause 8.1.2 and the internationally recognised Hierarchy of Controls:
Remove the hazard
Replace with lower risk
Isolate / guard
Procedures / training
Last resort
9.2 Hazard Register — 5×5 Risk Matrix
Risk Score = Likelihood (1–5) × Severity (1–5). 1–4 = Low ( GREEN ) | 5–12 = Medium ( AMBER ) | 15–25 = High ( RED )
| Ref. | Hazard / Activity | Persons at Risk | Ini. Risk | Control Measures (Hierarchy) | Res. Risk | Regulatory Basis |
|---|---|---|---|---|---|---|
| RA-01 | Underground services strike during site prep / drilling | Drill operator, ground workers | 5×5=25 HIGH |
Eliminate: Mandatory services survey (GPR, CAT scan) before any drilling. Engineering: Mark all services on plan and physically on ground. Admin: Ground disturbance permit; dig by hand within 500mm of marked service. PPE: Insulated gloves, safety footwear EN ISO 20345. | 2×3=6 MED |
ISO 45001 Cl.6.1; CDM 2015 Reg.4 |
| RA-02 | Ground instability / slope failure at blast site | All site personnel | 4×5=20 HIGH |
Engineering: Geotechnical investigation; face angle design per rock mass classification. Admin: Geotechnical Engineer sign-off on each bench; daily face inspection; exclusion from unstable areas. PPE: Hard hat EN 397. | 2×4=8 MED |
ISO 45001 Cl.8.1; ISO 31000 Cl.6.4 |
| RA-03 | Inadequate blast design causing over-break or structural damage | Adjacent structures, personnel | 3×5=15 HIGH |
Eliminate: Engineer-designed blast plan. Engineering: PPV monitoring; pre-blast structural condition survey. Admin: Peer review of design; staged trial blasting; vibration limits enforced (≤5 mm/s residential); abort if limits approached. | 2×2=4 LOW |
ISO 9001 Cl.8.5; ISO 14001 Cl.6.1.2 |
| RA-04 | Failure to notify authorities — legal non-compliance | Company, project | 3×4=12 MED |
Admin: Compliance calendar; HSE Manager owns notification register; client approval checklist; blast schedule communicated minimum 24h in advance. | 1×3=3 LOW |
ISO 45001 Cl.10.2; ISO 9001 Cl.8.1 |
| RA-05 | Explosives theft, loss or misuse | Public, site personnel | 3×5=15 HIGH |
Engineering: Certified double-locked magazine; CCTV and alarm. Admin: Continuous reconciliation; police notification of deliveries; licensed Shot Firer only handles explosives; inventory checked daily; discrepancy reported immediately to police. | 1×4=4 LOW |
ISO 45001 Cl.8.1; Explosives legislation |
| RA-06 | Accidental initiation during handling / transport | Shot Firer, transport crew | 3×5=15 HIGH |
Substitute: Use non-electric (NONEL) or electronic detonators instead of electric. Engineering: Approved explosives vehicle; anti-static precautions; separate transport of initiators and bulk explosives. Admin: No open flame, radio transmitters or mobile phones within 25m during handling; licensed operator. | 2×4=8 MED |
ISO 45001 Cl.8.1; Transport of Dangerous Goods regulations |
| RA-07 | Drilling — noise induced hearing loss (NIHL) | Drill operator, nearby workers | 5×3=15 HIGH |
Engineering: Enclosed ROPS/FOPS operator cab; acoustic barriers where practicable. Admin: Audiometric testing; rotation of work. PPE: Class 5 ear muffs EN 352-1 (SNR ≥30dB) mandatory within 10m of active drill. | 3×2=6 MED |
ISO 45001 Cl.8.1.2; Control of Noise at Work |
| RA-08 | Drilling — silica dust inhalation / respiratory disease | Drill operator, nearby workers | 4×4=16 HIGH |
Engineering: Water injection/suppression at drill bit; DEH (Dust Extraction Hood). Admin: Baseline health surveillance; rotation limits. PPE: FFP3 / P100 respirator EN 149 mandatory; RPE face-fit tested. | 2×3=6 MED |
ISO 45001 Cl.8.1.2; ISO 14001 Cl.8.1 |
| RA-09 | Water-filled or unstable blast holes — charge dislodgement | Shot Firer, blast crew | 3×4=12 MED |
Engineering: Use water-resistant explosive (emulsion) in wet holes; dewater where possible. Admin: Probe holes before charging; adjust charge weight for wet conditions; consult Blast Engineer. | 2×2=4 LOW |
ISO 9001 Cl.8.5; ISO 45001 Cl.8.1 |
| RA-10 | Flyrock — projectile hazard during detonation | All personnel, public, property | 3×5=15 HIGH |
Engineering: Blast mats / stemming design to contain flyrock; blasting curtains at sensitive boundaries. Admin: Engineered exclusion zone radius; sentries; correct stemming length mandatory; abort if mats displaced. PPE: All persons beyond exclusion zone. | 1×4=4 LOW |
ISO 45001 Cl.8.1; ISO 31000 Cl.6.5 |
| RA-11 | Premature detonation — RF / EMI / stray current | Shot Firer, blast crew | 2×5=10 MED |
Substitute: Use NONEL or electronic (coded) detonators — immune to stray current. Engineering: Stray current survey before use of electric detonators. Admin: RF transmitter exclusion zone; no mobile phones in blast area. | 1×4=4 LOW |
ISO 45001 Cl.8.1; Explosives regulations |
| RA-12 | Inadequate stemming — excess flyrock and airblast | All site personnel, public | 3×5=15 HIGH |
Engineering: Stemming length per design (≥20× hole diameter rule); approved material. Admin: Shot Firer verifies stemming before connection; stop work if stemming specification not met. | 1×4=4 LOW |
ISO 9001 Cl.8.5; ISO 45001 Cl.8.1 |
| RA-13 | Misconnection of initiation circuit | Shot Firer | 3×5=15 HIGH |
Admin: Pre-blast circuit check by Shot Firer; continuity test; dual check by Supervisor; do not connect blasting machine until all-clear; colour-coded delay markers; as-built record of connections. | 1×4=4 LOW |
ISO 45001 Cl.8.1; ISO 9001 Cl.8.5 |
| RA-14 | Person remaining in exclusion zone during blast | Any person | 2×5=10 MED |
Engineering: Physical barricade and access control; siren warning system. Admin: Formal roll call with signed attendance; radio confirmation from all sentries; blast aborted if headcount incomplete; named sentries at ALL access points. | 1×5=5 MED |
ISO 45001 Cl.8.1; ISO 31000 Cl.6.4 |
| RA-15 | Adverse weather — lightning strike on loaded blast | Shot Firer, site team | 3×5=15 HIGH |
Eliminate: Cease and suspend operations if lightning forecast within 10km or thunderstorm visible. Admin: Weather monitoring; defined trigger (storm within 10km); Shot Firer authority to suspend; all personnel to shelter; do not re-commence until storm passes ≥30 min. | 1×4=4 LOW |
ISO 45001 Cl.8.2; ISO 14001 Cl.8.2 |
| RA-16 | Air overpressure / airblast — structural and hearing damage | Nearby personnel, adjacent structures | 3×4=12 MED |
Engineering: Stemming design; delay timing to limit instantaneous charge weight (ICW). Admin: Pre-blast structural survey; air overpressure monitoring; limits 120 dB (L) typical; community notification; complaint management protocol. | 2×2=4 LOW |
ISO 14001 Cl.6.1.2; ISO 45001 Cl.8.1 |
| RA-17 | Post-blast fume / toxic gas inhalation (NOx, CO) | Shot Firer, re-entry personnel | 3×5=15 HIGH |
Engineering: 30-minute mandatory wait; atmospheric monitoring with calibrated multi-gas detector. Admin: Shot Firer re-enters alone first; gas monitor carried; abort re-entry if limits exceeded; improve ventilation if confined conditions. | 1×4=4 LOW |
ISO 45001 Cl.8.1.2; ISO 14001 Cl.8.1 |
| RA-18 | Misfire — unexploded charge creating hidden hazard | Shot Firer, excavation crew | 3×5=15 HIGH |
Eliminate: Charge count vs. detonation count verification. Admin: Formal misfire procedure (water flush preferred); 30-min exclusion maintained; only licensed Shot Firer manages misfire; written report mandatory; regulatory authority notification where required by law. | 2×4=8 MED |
ISO 45001 Cl.8.1; ISO 9001 Cl.8.5; Explosives regulations |
| RA-19 | Muck removal — plant-worker collision | Excavation crew, ground workers | 4×4=16 HIGH |
Engineering: Segregated access (physical barriers). Admin: Banksman mandatory for all reversing; exclusion zone = swing radius + 3m; visibility aids (CCTV, proximity warning). PPE: Hi-vis EN ISO 20471 Class 3. | 2×3=6 MED |
ISO 45001 Cl.8.1; PUWER/plant regulations |
| RA-20 | Rock face scaling — falling objects, working at height | Scalers, personnel below | 4×4=16 HIGH |
Engineering: Geotechnical netting/bolting as required; benching to limit fall height. Admin: Exclusion below active scaling face; harness and fall arrest for scaling >2m; Geotechnical Engineer daily face inspection. PPE: Hard hat, face shield, harness EN 361. | 2×3=6 MED |
ISO 45001 Cl.8.1; Working at Height Regulations |
| RA-21 | Vibration exceedance — damage to adjacent structures | Public, adjacent property owners | 3×4=12 MED |
Engineering: PPV monitoring at nearest structure; ICW reduction. Admin: Pre-blast condition survey (photographic record); vibration limits in blast design; immediate reporting if exceeded; blast suspension protocol; community liaison. | 1×3=3 LOW |
ISO 14001 Cl.6.1.2; ISO 31000 Cl.6.5 |
10PPE Requirements
| PPE Item | Specification / Standard | When Required | Status | Applies To |
|---|---|---|---|---|
| Safety Helmet | EN 397:2012+A1 / ANSI Z89.1 / AS/NZS 1801 | All times on site | MANDATORY | All personnel |
| Safety Footwear | EN ISO 20345:2011 S3 SRC (toecap + midsole) | All times on site | MANDATORY | All personnel |
| Hi-Visibility Vest/Jacket | EN ISO 20471:2013 Class 2 (min) / Class 3 (plant operations) | All times on site | MANDATORY | All personnel |
| Safety Glasses / Goggles | EN 166:2002 / ANSI Z87.1 — impact rated | Drilling, charging, scaling, muck removal | MANDATORY | All active task workers |
| Hearing Protection — Ear Defenders | EN 352-1:2002 SNR ≥30dB / Class 5 (Australia) | Within 10m of active drill; during detonation sequence | MANDATORY | All personnel in noise zone |
| RPE — Dust Mask (Half-Face) | EN 149:2001+A1 FFP3 / P100 (NIOSH) — face-fit tested | All drilling and post-blast activities | MANDATORY | Drill operator, blast crew |
| Chemical Resistant Gloves | EN ISO 374-1:2016 Type B — nitric acid/fuel resistance | Handling ANFO, explosives, detonators | MANDATORY | Shot Firer, charging crew |
| Anti-Static Clothing | EN 1149-5:2018 — electrostatic dissipative | Handling electric detonators | MANDATORY | Shot Firer (electric det.) |
| Full Body Harness | EN 361:2002 — Class A; with EN 355 energy absorber | Face scaling / working at height >2m | MANDATORY | Scalers, face inspection |
| Multi-Gas Detector (CGI/CO/NOx/O₂) | Calibrated to manufacturer schedule; ATEX-rated | Post-blast re-entry inspection | MANDATORY | Shot Firer (re-entry) |
| Face Shield | EN 166:2002 — 3B rated (impact) | Rock scaling, any overhead work | MANDATORY (task-specific) | Scalers |
| Sun Protection / Cooling Vest | SPF 50+ clothing; cooling vest for heat stress >35°C | Outdoor work in high ambient temp | ADVISORY | All outdoor workers |
Note on Jurisdictional Helmet Standards: EN 397 applies in Europe and is widely adopted globally. ANSI Z89.1 applies in the USA. AS/NZS 1801 in Australia/New Zealand. CSA Z94.1 in Canada. GSO 2055 in GCC countries. Confirm applicable standard for your project jurisdiction.
11Environmental Controls
11.1 Environmental Aspect & Impact Register
| Aspect | Environmental Impact | Activity Phase | Severity | Control Measure | Reg. Basis |
|---|---|---|---|---|---|
| Blast-generated dust | Air quality degradation; health nuisance; visibility hazard | Drilling, detonation | HIGH | Water suppression on drill; blast timing vs wind; exclusion zone covers dust plume; community notification; air quality monitoring downwind | ISO 14001 Cl.6.1.2, 8.1 |
| Ground vibration (PPV) | Structural damage to adjacent buildings; community disturbance | Detonation | HIGH | Engineered ICW; delay timing; PPV monitoring at nearest receptor; pre-blast structural survey; blast suspension protocol if limits approached | ISO 14001 Cl.6.1.2; ISO 31000 Cl.6.5 |
| Air overpressure (noise) | Disturbance to community; hearing risk; wildlife disturbance | Detonation | MED | Blast schedule within permitted hours (typically 0800–1700 Mon–Fri); noise monitoring; community liaison; blast curtains/mats at boundaries; advance notification | ISO 14001 Cl.6.1.2, 8.1 |
| Post-blast fumes (NOx, CO) | Air quality; health risk; odour nuisance | Post-detonation | MED | 30-min wait; atmospheric monitoring; blast timing with favourable wind; use oxygen-balanced explosives; avoid overcharging | ISO 14001 Cl.8.1; ISO 45001 Cl.8.1.2 |
| Groundwater contamination | Groundwater quality impact from explosive residues (AN, fuel oil) | Charging, post-blast | MED | Minimise excess explosive; use packaged (not bulk) explosives near water table; water quality monitoring in boreholes; spill response plan; no bulk ANFO in water-saturated holes without approved encapsulation | ISO 14001 Cl.6.1.2, 8.2 |
| Wildlife disturbance | Disruption to local fauna; displacement of nesting species | All blasting | LOW | Ecological survey before commencement; avoid blasting during sensitive breeding seasons if ecologically protected species identified; buffer zones | ISO 14001 Cl.6.1.2 |
| Unexploded explosive residues | Long-term land contamination; public safety risk | Post-blast | HIGH | Misfire protocol; explosives reconciliation; long-term ground survey; reporting to environmental authority as required | ISO 14001 Cl.6.1.2; ISO 9001 Cl.8.5 |
12Emergency Procedures & First Aid
12.1 Emergency Contact Numbers
| Service | Number | Notes |
|---|---|---|
| Emergency Services (Police / Fire / Ambulance) | [LOCAL EMERGENCY NO. e.g. 999 / 911 / 112 / 998] | Post at site office, vehicles and blast control point |
| Nearest Hospital (A&E) | [Hospital Name, Tel. No., Address] | Route map to hospital in all site vehicles |
| Project Manager (24h) | [Mobile No.] | Notify immediately of any incident |
| HSE Manager (24h) | [Mobile No.] | Incident controller for blasting events |
| Explosives Regulatory Authority | [Authority Name, Tel. No.] | Mandatory notification for misfire / theft |
| Explosives Supplier Emergency | [Supplier Name, Emergency Tel.] | Supplier SDS emergency advice line |
| Environmental Agency | [Authority Name, Tel. No.] | Notify for significant environmental release |
12.2 Emergency Response Procedures
A — Misfire / Unexploded Charge
- Do not approach the misfired hole. Maintain exclusion zone.
- Shot Firer notifies Blasting Supervisor immediately. Blasting Supervisor notifies HSE Manager.
- Maintain 30-minute wait from last detonation before any action.
- Only the Licensed Shot Firer may deal with a misfire, using the approved procedure (water-flush method preferred).
- Do not drill into, heat or cut any suspected misfired charge.
- Notify Explosives Regulatory Authority as required by jurisdiction.
- Record all details on Misfire Report Form (RPZ-MF-BLAST-F02).
B — Person Injured in Blast Area
- STOP all operations immediately. Activate emergency stop.
- Call emergency services — state: location, nature of injury, number of casualties.
- Trained First Aider responds — do not move casualty unless in immediate danger.
- Clear access route for emergency vehicles. Appoint guide at site entrance.
- HSE Manager notified. Scene preserved for investigation. Do not disturb evidence.
- Commence Incident Report (RPZ-INC-F01) immediately.
C — Explosives Fire / Detonation Hazard
- Evacuate immediately. Sound continuous horn. No attempt to fight fire involving explosives.
- Call fire services — advise that explosives are present, type and quantity.
- Establish 300m minimum exclusion zone pending emergency services arrival.
- Account for all personnel — do not attempt rescue into explosive fire area.
- Notify police, regulatory authority, and client immediately.
D — Environmental Spill (Fuel / Explosive Residues)
- Stop source of spill if safe to do so.
- Deploy spill kit — contain with absorbent booms, do not allow drainage to watercourse.
- Notify HSE Manager. Assess whether environmental authority notification required.
- Hazardous waste disposal of contaminated material through licensed contractor.
12.3 First Aid Provisions
| Item | Quantity | Location |
|---|---|---|
| Fully stocked First Aid Kit (HSE-compliant) | Minimum 2 | Site office + blast control vehicle |
| Trained First Aider (minimum EFAW) | Minimum 1 per shift | Present at all times during blasting |
| AED (Automated External Defibrillator) | 1 | Site office / first aid point |
| Burns dressing kit | 2 | Site office + blast vehicle |
| Eye wash station (sterile) | 2 | Site office + drill area |
| Emergency stretcher | 1 | Site vehicle |
| Emergency vehicle (4WD) | 1 | On site at all times during blasting |
13Quality Control — Inspection & Test Plan (ITP)
This ITP is referenced from the project Quality Management Plan (QMP). Hold Points (H) must be signed off before work proceeds. Witness Points (W) require notification — work may proceed if witness does not attend. Review Points (R) — document review only.
| # | Activity / Inspection Point | Type | Responsible | Acceptance Criteria | Records / Forms | Client |
|---|---|---|---|---|---|---|
| ITP-01 | Blast Design Review and Approval | H | Blasting Engineer + PM | Design compliant with site constraints, PPV limits, and regulatory requirements | Blast Design Report, Approval Form | H |
| ITP-02 | Explosives Receipt Inspection | W | Shot Firer | Correct type, quantity, batch — undamaged; manifest matches order | Explosives Delivery Manifest, Receipt Log | R |
| ITP-03 | Drill Hole Survey (As-Drilled) | H | Site Engineer | Hole position ±100mm, depth ±100mm, diameter ±5mm of design | Drill Log, Survey Record | W |
| ITP-04 | Permit to Work Issuance — Pre-Blast | H | HSE Manager | All PTWs signed by authorised persons; all pre-conditions satisfied | PTW Register, Pre-Blast Checklist | H |
| ITP-05 | Toolbox Talk / Pre-Blast Briefing | W | Blasting Supervisor | All blast personnel briefed and attendance register signed | Toolbox Talk Register (RPZ-TBT-BLAST-F01) | R |
| ITP-06 | Exclusion Zone Establishment | H | Blasting Supervisor + HSE Officer | Physical barriers installed; sentries deployed; headcount complete | Exclusion Zone Checklist | W |
| ITP-07 | Charging (Loading) Inspection | W | Licensed Shot Firer | Charge weight, type and position per design; connections secure; stemming length correct | Blast Record Form | R |
| ITP-08 | Pre-Detonation Final Check | H | Shot Firer + Supervisor | All-clear from all sentries; circuit checked; weather acceptable; monitors active | Pre-Blast Final Check Form | H |
| ITP-09 | Post-Blast Inspection (Misfire Check) | H | Licensed Shot Firer | All charges detonated confirmed; no misfires; gas levels acceptable; face stable | Post-Blast Inspection Form | W |
| ITP-10 | Vibration Monitoring Data Review | R | HSE Manager | PPV within approved limits; exceedance reported and investigated | Seismograph Printout, Monitoring Log | R |
| ITP-11 | Explosives Reconciliation — Post-Blast | H | Shot Firer + Supervisor | 100% reconciliation — used + returned = received; zero discrepancy | Explosives Register, Reconciliation Form | R |
| ITP-12 | Blast Performance Survey | W | Site Engineer + Blasting Engineer | Fragmentation, muck pile profile and over/under-break within design tolerance | Post-Blast Survey Report | W |
14Training & Competency Requirements
| Role | Mandatory Qualifications / Licences | Training / Certification | Frequency | Records Location |
|---|---|---|---|---|
| Licensed Shot Firer | National explosives blasting licence (jurisdiction-specific); valid and current | Explosives handling, misfire procedure, first aid (EFAW min), PPE, emergency response | Licence renewal per authority; annual refresher | HR system + site file |
| Blasting Engineer | Chartered/registered engineer (CEng/PE) with blasting design specialism; explosives competency certificate | Blast design methodology, vibration analysis, regulatory requirements, PPV monitoring | CPD ongoing; minimum 5-yearly formal assessment | HR system + site file |
| Blasting Supervisor | Site supervisory competency; explosives awareness certificate; first aid FAW | PTW authorisation, exclusion zone management, emergency response, toolbox talk delivery | Annual refresher; induction on each new project | HR system |
| Drill Operator | Plant operator licence (jurisdiction-specific); ROPS/FOPS equipment certification | Machine-specific familiarisation, dust control, noise awareness, site induction | Annual plant certificate; project site induction | HR system + site file |
| HSE Officer | NEBOSH General Certificate (min) or equivalent; first aid FAW | Vibration monitoring, audit, incident investigation, toolbox talks, PTW management | NEBOSH renewal per institution; annual HSE refresher | HR system |
| All Site Workers | Site safety induction (project-specific) | Blasting operations awareness, warning signal protocol, exclusion zone, emergency muster | Per project; refresher if significant change to site conditions | Induction register |
15Approval & Sign-off Block
Personnel Acknowledgement Register
All personnel involved in blasting operations must sign below to confirm they have read, understood and will comply with this Method Statement.
| # | Full Name | Position / Role | Company | Signature | Date |
|---|---|---|---|---|---|
| 1 | |||||
| 2 | |||||
| 3 | |||||
| 4 | |||||
| 5 | |||||
| 6 | |||||
| 7 | |||||
| 8 |
Additional acknowledgement sheets may be appended as required. All signed sheets to be retained on site and copied to the project HSE file.
AReferences & Related Documents
| Ref. | Document / Standard Title | Document Number / Version | Custodian |
|---|---|---|---|
| R-01 | ISO 45001:2018 — Occupational Health and Safety Management Systems | ISO 45001:2018 | ISO |
| R-02 | ISO 9001:2015 — Quality Management Systems — Requirements | ISO 9001:2015 | ISO |
| R-03 | ISO 14001:2015 — Environmental Management Systems — Requirements | ISO 14001:2015 | ISO |
| R-04 | ISO 31000:2018 — Risk Management — Guidelines | ISO 31000:2018 | ISO |
| R-05 | Project Health, Safety and Environment (HSE) Plan | [Doc No.] | [COMPANY] |
| R-06 | Blast Design Report | [Doc No.] | Blasting Engineer |
| R-07 | Risk Assessment — Controlled Blasting Operations | [Doc No.] | HSE Manager |
| R-08 | Environmental Management Plan (EMP) | [Doc No.] | Environmental Manager |
| R-09 | Project Quality Management Plan (QMP) | [Doc No.] | [COMPANY] |
| R-10 | Emergency Response Plan (ERP) | [Doc No.] | HSE Manager |
| R-11 | Explosives Storage Licence / Magazine Certificate | [Licence No.] | Shot Firer |
| R-12 | Pre-Blast Structural Condition Survey Report | [Doc No.] | Site Engineer |
| R-13 | Shot Firer's Licence (current) | [Licence No. / Expiry] | Shot Firer |
BRevision History Log
| Rev. | Date | Section(s) Changed | Description of Change | Changed By | Approved By |
|---|---|---|---|---|---|
| 00 | [Date] | All | Initial Issue — First Release | [Name] | [Name] |
| 01 | |||||
| 02 |

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