METHOD STATEMENT FOR CONTROLLED BLASTING FOR ROCK EXCAVATION, TESTING AND COMMISSIONING

Method Statement – Controlled Blasting for Rock Excavation | RAMS PRO ZONE
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Method Statement
Controlled Blasting for Rock
Excavation, Testing & Commissioning
Safe System of Work — Drilling, Charging, Firing & Post-Blast Inspection
ISO 45001 ISO 9001 ISO 14001 ISO 31000
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]
⚠ SAFETY CRITICAL DOCUMENT: This Method Statement must be read in conjunction with the associated Risk Assessment, Blast Design Report, Blasting Permit, and applicable explosive handling regulations. No blasting operations shall commence without all required authorisations.
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TABLE OF CONTENTS
  • 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
ℹ Jurisdictional Applicability Note: This Method Statement references international standards (ISO 45001, ISO 9001, ISO 14001, ISO 31000). Users must verify which national adoption version and local legislative overlay governs their specific project jurisdiction before commencing any blasting operation. Seek advice from a licensed explosives engineer and local regulatory authority where required.
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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
01Project Manager[COMPANY]Controlled (Electronic)[Date]
02Site HSE Manager[COMPANY]Controlled (Electronic)[Date]
03Licensed Shot Firer[COMPANY]Controlled (Printed)[Date]
04Blasting Supervisor[COMPANY]Controlled (Printed)[Date]
05Client Representative[CLIENT]Controlled (Electronic)[Date]
06Regulatory 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.

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3Legal & Regulatory Compliance Framework

🌐 International Scope: This document has been developed against the four internationally selected standards below. Project teams must additionally overlay all applicable national, regional and local legislation for the project jurisdiction.
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
⚠ Jurisdiction-Specific Note: In addition to the above international standards, the following types of legislation typically govern blasting operations and MUST be confirmed for the project jurisdiction: Explosives Acts/Regulations, Mines & Quarries Acts, OHS/HSW legislation, Environmental Protection Acts, Local Authority Planning Conditions, and Transport of Dangerous Goods regulations. Consult your QHSE Lead and Legal Counsel for project-specific compliance confirmation.

4Definitions & Abbreviations

Term / AbbreviationDefinition
Controlled BlastingThe 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 / BlasterA competent, licensed individual authorised by the relevant national authority to handle, prepare and detonate explosive charges.
Blast Design ReportThe engineered document specifying drill pattern, hole depth/diameter, explosive type/quantity, delay timing, stemming and safety exclusion zones for a specific blast.
Exclusion ZoneThe controlled area from which all personnel, equipment and vehicles must be evacuated prior to and during detonation. Distance determined by blast design.
MisfireA charge or part of a charge that has failed to detonate as intended. Requires specific emergency procedure.
FlyrockRock 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.
PTWPermit to Work — formal written authorisation system.
ITPInspection and Test Plan — quality document identifying hold points, witness points and acceptance criteria.
ANFOAmmonium Nitrate Fuel Oil — common bulk explosive used in open-face blasting.
RACIResponsible, Accountable, Consulted, Informed — responsibility assignment matrix.
PPVPeak Particle Velocity — unit: mm/s.
OHS / HSEOccupational Health and Safety / Health, Safety and Environment.
NOx / CONitrogen Oxides / Carbon Monoxide — post-blast fumes requiring atmospheric clearance before re-entry.
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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 ApprovalACRCICI
Permit to Work AuthorisationARCCIRI
Explosives Receipt & StorageICARICI
Drilling OperationsICACRCI
Hole Loading & ChargingICARICI
Exclusion Zone EstablishmentICRRCRI
Detonation CommandICARICI
Post-Blast InspectionICARICC
Misfire ManagementIRARIRI
Environmental MonitoringIRCCIRI
Incident ReportingARCCCRI
ITP / Quality Sign-offACRCICR

6Plant, Equipment & Materials

6.1 Explosives & Accessories

ItemSpecification / TypeQuantity (Approx.)Storage Requirements
Bulk Explosive (ANFO)Ammonium Nitrate Fuel Oil — Class 1.5D[As per Blast Design]Licensed explosives magazine; segregated from detonators
Emulsion ExplosiveHeavy 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 DetonatorsProgrammable electronic delay — Class 1.4B[As per Blast Design]Manufacturer-specified conditions; coded programming unit
Detonating CordPETN core, 10–40 g/m[As per Blast Design]Licensed magazine; protected from sunlight
Boosters / Cast BoostersPETN/TNT composite — Class 1.1D[As per Blast Design]Licensed magazine
Stemming MaterialCrushed aggregate / drill cuttings, 6–12mm[As per Blast Design]On-site stockpile, clean and dry

6.2 Plant & Machinery

EquipmentSpecificationPre-Use InspectionOperator Competency
Rotary/DTH Drill Rig[Make/Model] — 90–165mm diameterDaily pre-start checklistLicensed drill operator + site induction
Bulk Emulsion Delivery Truck (MEMU)Mobile Explosives Manufacturing Unit — certifiedPre-use inspection by Shot FirerLicensed operator + hazmat certification
Excavator / Dozer[Make/Model] — for muck removalDaily pre-start checklist (PSSR)Plant operator licence + site induction
Ground Vibration MonitorSeismograph — calibrated; PPV range 0–254 mm/sCalibration certificate currentHSE Officer trained in data collection
Air Overpressure MonitorSound level meter — calibrated ≤12 monthsCalibration certificate currentHSE Officer
Blasting Machine / LoggerElectronic initiation system — approved typePre-use function test by Shot FirerLicensed Shot Firer only
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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 TypeIssuing AuthorityValidity PeriodPrerequisites
Blasting / Explosives PermitHSE Manager + Regulatory AuthorityPer blast eventBlast Design approved, exclusion zone confirmed, emergency services notified
Excavation PermitSite Engineer / HSE ManagerPer shiftUnderground service survey completed, ground stability confirmed
Hot Work PermitSite HSE OfficerPer task, max 12hOnly if welding/cutting adjacent to blast area
Confined Space Entry PermitSite HSE ManagerPer entryOnly if blasting in tunnel/confined excavation context
Ground Disturbance PermitSite EngineerPer areaUnderground utilities survey (RFI / As-built drawings reviewed)

7.2 Pre-Blast Inspection Checklist

#Inspection ItemResponsibleStatus
1Blast Design Report reviewed and approved by authorised Blasting EngineerBlasting Supervisor☐ Pass / ☐ Fail / ☐ N/A
2All permits to work issued, signed and displayed at siteHSE Officer☐ Pass / ☐ Fail / ☐ N/A
3Explosives receipted and verified against delivery manifest; condition checkedLicensed Shot Firer☐ Pass / ☐ Fail / ☐ N/A
4Drill holes surveyed — diameter, depth, inclination verified against designSite Engineer☐ Pass / ☐ Fail / ☐ N/A
5Exclusion zone barriers, signage and access control establishedBlasting Supervisor☐ Pass / ☐ Fail / ☐ N/A
6Ground vibration and air overpressure monitors positioned and operationalHSE Officer☐ Pass / ☐ Fail / ☐ N/A
7Emergency services notified (timing and location of blast communicated)HSE Manager☐ Pass / ☐ Fail / ☐ N/A
8Warning sirens/horns tested and confirmed operationalShot Firer☐ Pass / ☐ Fail / ☐ N/A
9All personnel and plant evacuated beyond exclusion zone; headcount confirmedBlasting Supervisor☐ Pass / ☐ Fail / ☐ N/A
10Weather conditions checked — wind speed/direction, lightning risk assessedHSE Officer☐ Pass / ☐ Fail / ☐ N/A
11Communications (radios) tested between Shot Firer, sentries and supervisorShot Firer☐ Pass / ☐ Fail / ☐ N/A
12First aid equipment and emergency vehicle confirmed available on siteHSE 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.

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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
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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
Warning Signal Protocol:   🔔🔔🔔 THREE LONG = EVACUATE NOW  |  🔔 ONE LONG = BLAST IMMINENT  |  🔔🔔 TWO SHORT = WAIT PERIOD  |  🔔🔔🔔🔔 FOUR SHORT = ALL CLEAR / RE-ENTER
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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:

① ELIMINATE
Remove the hazard
② SUBSTITUTE
Replace with lower risk
③ ENGINEERING
Isolate / guard
④ ADMINISTRATIVE
Procedures / training
⑤ PPE
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
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10PPE Requirements

PPE Item Specification / Standard When Required Status Applies To
Safety HelmetEN 397:2012+A1 / ANSI Z89.1 / AS/NZS 1801All times on siteMANDATORYAll personnel
Safety FootwearEN ISO 20345:2011 S3 SRC (toecap + midsole)All times on siteMANDATORYAll personnel
Hi-Visibility Vest/JacketEN ISO 20471:2013 Class 2 (min) / Class 3 (plant operations)All times on siteMANDATORYAll personnel
Safety Glasses / GogglesEN 166:2002 / ANSI Z87.1 — impact ratedDrilling, charging, scaling, muck removalMANDATORYAll active task workers
Hearing Protection — Ear DefendersEN 352-1:2002 SNR ≥30dB / Class 5 (Australia)Within 10m of active drill; during detonation sequenceMANDATORYAll personnel in noise zone
RPE — Dust Mask (Half-Face)EN 149:2001+A1 FFP3 / P100 (NIOSH) — face-fit testedAll drilling and post-blast activitiesMANDATORYDrill operator, blast crew
Chemical Resistant GlovesEN ISO 374-1:2016 Type B — nitric acid/fuel resistanceHandling ANFO, explosives, detonatorsMANDATORYShot Firer, charging crew
Anti-Static ClothingEN 1149-5:2018 — electrostatic dissipativeHandling electric detonatorsMANDATORYShot Firer (electric det.)
Full Body HarnessEN 361:2002 — Class A; with EN 355 energy absorberFace scaling / working at height >2mMANDATORYScalers, face inspection
Multi-Gas Detector (CGI/CO/NOx/O₂)Calibrated to manufacturer schedule; ATEX-ratedPost-blast re-entry inspectionMANDATORYShot Firer (re-entry)
Face ShieldEN 166:2002 — 3B rated (impact)Rock scaling, any overhead workMANDATORY (task-specific)Scalers
Sun Protection / Cooling VestSPF 50+ clothing; cooling vest for heat stress >35°COutdoor work in high ambient tempADVISORYAll 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
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12Emergency Procedures & First Aid

⚠ CRITICAL: All supervisors and the Shot Firer must know the location of the nearest emergency muster point, first aid station, and AED. Emergency contact numbers must be posted at the site office and on the shot firer's person at all times.

12.1 Emergency Contact Numbers

ServiceNumberNotes
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

  1. Do not approach the misfired hole. Maintain exclusion zone.
  2. Shot Firer notifies Blasting Supervisor immediately. Blasting Supervisor notifies HSE Manager.
  3. Maintain 30-minute wait from last detonation before any action.
  4. Only the Licensed Shot Firer may deal with a misfire, using the approved procedure (water-flush method preferred).
  5. Do not drill into, heat or cut any suspected misfired charge.
  6. Notify Explosives Regulatory Authority as required by jurisdiction.
  7. Record all details on Misfire Report Form (RPZ-MF-BLAST-F02).

B — Person Injured in Blast Area

  1. STOP all operations immediately. Activate emergency stop.
  2. Call emergency services — state: location, nature of injury, number of casualties.
  3. Trained First Aider responds — do not move casualty unless in immediate danger.
  4. Clear access route for emergency vehicles. Appoint guide at site entrance.
  5. HSE Manager notified. Scene preserved for investigation. Do not disturb evidence.
  6. Commence Incident Report (RPZ-INC-F01) immediately.

C — Explosives Fire / Detonation Hazard

  1. Evacuate immediately. Sound continuous horn. No attempt to fight fire involving explosives.
  2. Call fire services — advise that explosives are present, type and quantity.
  3. Establish 300m minimum exclusion zone pending emergency services arrival.
  4. Account for all personnel — do not attempt rescue into explosive fire area.
  5. Notify police, regulatory authority, and client immediately.

D — Environmental Spill (Fuel / Explosive Residues)

  1. Stop source of spill if safe to do so.
  2. Deploy spill kit — contain with absorbent booms, do not allow drainage to watercourse.
  3. Notify HSE Manager. Assess whether environmental authority notification required.
  4. Hazardous waste disposal of contaminated material through licensed contractor.

12.3 First Aid Provisions

ItemQuantityLocation
Fully stocked First Aid Kit (HSE-compliant)Minimum 2Site office + blast control vehicle
Trained First Aider (minimum EFAW)Minimum 1 per shiftPresent at all times during blasting
AED (Automated External Defibrillator)1Site office / first aid point
Burns dressing kit2Site office + blast vehicle
Eye wash station (sterile)2Site office + drill area
Emergency stretcher1Site vehicle
Emergency vehicle (4WD)1On site at all times during blasting
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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-01Blast Design Review and ApprovalHBlasting Engineer + PMDesign compliant with site constraints, PPV limits, and regulatory requirementsBlast Design Report, Approval FormH
ITP-02Explosives Receipt InspectionWShot FirerCorrect type, quantity, batch — undamaged; manifest matches orderExplosives Delivery Manifest, Receipt LogR
ITP-03Drill Hole Survey (As-Drilled)HSite EngineerHole position ±100mm, depth ±100mm, diameter ±5mm of designDrill Log, Survey RecordW
ITP-04Permit to Work Issuance — Pre-BlastHHSE ManagerAll PTWs signed by authorised persons; all pre-conditions satisfiedPTW Register, Pre-Blast ChecklistH
ITP-05Toolbox Talk / Pre-Blast BriefingWBlasting SupervisorAll blast personnel briefed and attendance register signedToolbox Talk Register (RPZ-TBT-BLAST-F01)R
ITP-06Exclusion Zone EstablishmentHBlasting Supervisor + HSE OfficerPhysical barriers installed; sentries deployed; headcount completeExclusion Zone ChecklistW
ITP-07Charging (Loading) InspectionWLicensed Shot FirerCharge weight, type and position per design; connections secure; stemming length correctBlast Record FormR
ITP-08Pre-Detonation Final CheckHShot Firer + SupervisorAll-clear from all sentries; circuit checked; weather acceptable; monitors activePre-Blast Final Check FormH
ITP-09Post-Blast Inspection (Misfire Check)HLicensed Shot FirerAll charges detonated confirmed; no misfires; gas levels acceptable; face stablePost-Blast Inspection FormW
ITP-10Vibration Monitoring Data ReviewRHSE ManagerPPV within approved limits; exceedance reported and investigatedSeismograph Printout, Monitoring LogR
ITP-11Explosives Reconciliation — Post-BlastHShot Firer + Supervisor100% reconciliation — used + returned = received; zero discrepancyExplosives Register, Reconciliation FormR
ITP-12Blast Performance SurveyWSite Engineer + Blasting EngineerFragmentation, muck pile profile and over/under-break within design tolerancePost-Blast Survey ReportW

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
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15Approval & Sign-off Block

Document Approval: This Method Statement must be reviewed, signed and approved by all designated signatories below before any blasting operations commence. Electronic or wet-ink signatures are acceptable. A scanned signed copy must be uploaded to the Document Management System.
PREPARED BY
Name: [Full Name]
Position: [Job Title]
Date: [DD/MM/YYYY]
REVIEWED BY — HSE
Name: [Full Name]
Position: HSE Manager
Date: [DD/MM/YYYY]
REVIEWED BY — ENGINEERING
Name: [Full Name]
Position: Blasting Engineer
Date: [DD/MM/YYYY]
APPROVED BY — PROJECT
Name: [Full Name]
Position: Project Manager
Date: [DD/MM/YYYY]
APPROVED BY — CLIENT
Name: [Full Name]
Company: [CLIENT NAME]
Date: [DD/MM/YYYY]
REGULATORY AUTHORITY
Ref No.: [Authority Ref.]
Authority: [Name]
Date Approved: [DD/MM/YYYY]

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 TitleDocument Number / VersionCustodian
R-01ISO 45001:2018 — Occupational Health and Safety Management SystemsISO 45001:2018ISO
R-02ISO 9001:2015 — Quality Management Systems — RequirementsISO 9001:2015ISO
R-03ISO 14001:2015 — Environmental Management Systems — RequirementsISO 14001:2015ISO
R-04ISO 31000:2018 — Risk Management — GuidelinesISO 31000:2018ISO
R-05Project Health, Safety and Environment (HSE) Plan[Doc No.][COMPANY]
R-06Blast Design Report[Doc No.]Blasting Engineer
R-07Risk Assessment — Controlled Blasting Operations[Doc No.]HSE Manager
R-08Environmental Management Plan (EMP)[Doc No.]Environmental Manager
R-09Project Quality Management Plan (QMP)[Doc No.][COMPANY]
R-10Emergency Response Plan (ERP)[Doc No.]HSE Manager
R-11Explosives Storage Licence / Magazine Certificate[Licence No.]Shot Firer
R-12Pre-Blast Structural Condition Survey Report[Doc No.]Site Engineer
R-13Shot Firer's Licence (current)[Licence No. / Expiry]Shot Firer
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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
RAMS PRO ZONE — DOCUMENT DISCLAIMER & TERMS OF USE

This Method Statement template has been prepared by RAMS PRO ZONE for use as a professional starting framework by qualified QHSE practitioners. It is provided as a generic template and must be reviewed, customised and validated by a competent QHSE professional with knowledge of the specific project, site conditions, applicable local legislation, and regulatory requirements before use.

RAMS PRO ZONE, its directors, authors and affiliates accept no liability for the use or misuse of this document. All users are responsible for ensuring compliance with national and local laws, standards and client requirements applicable to their project jurisdiction. Blasting operations are inherently hazardous and must only be conducted by licensed, competent professionals with all requisite permits and approvals in place.

© [Year] RAMS PRO ZONE  |  https://ramsprozone.blogspot.com  |  All rights reserved. Unauthorised reproduction prohibited.

⬡ RAMS PRO ZONE
WORLD-CLASS QHSE DOCUMENTATION | ramsprozone.blogspot.com
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