PPC-POWERCHINA-CDEC CONSORTIUM
Design & Build SMR STP Project
Yumol Compound, Brgy. Sta. Ana, San Mateo, Rizal
HSE-JHA No.006 Rev. No. B
Subject of JHA DISCPLINE Date of Rev. 01/06/2024
JOB HAZARD ANALYSIS Civil Piping Elec Struct'l.
(JHA) Excavation of Inlet Pump Station
Other _______________________________
CONSTRUCTION SAFETY PROJECT MANAGEMENT
Reviewed by: Name Position: Reviewed by: Name: Position: Approved by; Name; Position:
Date Signature: Date Signature: Date Signature:
No. Activity Potential Hazards and Risk Preventive Measures
Site assessment (evaluate the site to understand Unidentified utilities Use utility locating tools to identify and mark utilities before
the soil type, ground water conditions, and any starting the excavations. Always dig carefully around the marked
potential hazards. This information will be crucial in utilities if any.
planning the excavation and dewatering process. Soil instability (loose or unstable soil can lead to collapses
Conduct a soil analysis or refer preveous soil testing to
or cave-ins during excavation. understand its propertie. Based on the analysis, use appropriate
1 shoring or trench boxes to support the sides of the excavation
or follow the CMS.
Ground water (presence of groundwater can lead to If ground water is expected plan for dewatering methods like
flooding of the excavation) water pumps.
Hazardous substance (presence of hazardous substances Conduct a soil test or refer preveous soil testing to identify any
in the soil) hazardous substances. If such substances are found, follow
appropriate handling and disposal procedure.
Preparation of excavation plan (CMS was Lack of communication/Inadequate proceure/Unskilled Safety orientation to the workers/TBM to the workers prior to
developed to determine the type of support personnel/Weather condition/Re-routing of perimeter commencement of activity/Must be awae of weather
system to prevent cave-ins, and dewatering access. condition/No hurry to carry out any activities/Display warning
2
technique to be used. signs/Provide shelters to the workers/Provide alternative route
or access to vehicle and pedestrians.
Page 1 of 4
Installation of safety measures (installation of Loss materials/Stones/Dust/Wet soil/Poor Remove loosed materials and stone at site/Use dust mask to
appropriate safety measures such as barricades communication/Awkward body posture/Exposure from avoid inhalation fine particles/Do not twist your body/Personnel
around the excavation site to prevent accidental direct sunlight or rain. Provide proper barrication with must be able to understand the local language/Clear the
3 falls) signage. workplace prior to start activities/Extreme care while working
on wet soil/Personnel should be aware of manual handling
techniques/Appropriate PPE must be worn.
Excavation (start the excavation process using Presence of existing underground services/ generation of Follow PTW and CMS procedure/TBM with all concerned teams
suitable machinery such as backhoe. The dust/ Defective & inadequate equipment/ Improper prior to start work/Water sprinkling to be carried out to prevent
excavation should be done in stages, with each selection of equipment/Incompetent dust generation, workers in close proximity to be provided with
stage not exceeding 1.5 meters. After each stage, operatives/Generation of noise/Fall of persons, dust masks or required PPE/ Use inspected equipment and
evaluate the stability of the excavation walls. equipment, and machinery working nearby excavation machinery, tools for work/Select right and good tools &
area equipment for the activities and inspect prior to use.
Collapse of excavation/Damage to underground utilities if Only certified, trained & experienced operators should operate
any/Inadequate access and egress/Unauthorized the equipment and competent banksman should be present
operator/Ground water during the mechanical excavation/Workers exposed to noise
provide earplug/Keep safe distance and wear proper PPE while
working near the electrical live lines/Keep equipment at a safe
distance from the trench's edge minimum 1 m away from the
4 edge/Provide warning signboard, barricades around the
excavation area.
Make sloping/step cutting of pits during excavation/Provide
shoring wherever slop is not possible/Don't keep any materials
near to the edge of excavated area or trench maintain safe
distance always/Before excavation, trial pits shall be made to
expose all underground services.
Ladder or steps to be provided for safe access and egress/Only
licensed operator shall be allowed to operate the
equipment/Provide water pumps for dewatering the
accumulated groundwater, check the side wall condition of the
excavated area before entering inside for work. Everbody
should wear a reflecting vest while working in a deep excavated
trench.
Installation of support system (install support Equipment failure/personal injury/property Provide sufficient space for equipment operation/Competent
system like shoring or trench boxes or installation damage/Lifting failure/Excessive noise/Vibro hammer or team to be deployed/Rigging items to be inspect/Tag lines to be
of sheet pile to prevent the sides of the excavation crane failure/Fall of material or hit to existing structure or used for the lifting/Proper PPE to be worn/Lifting supervisor to
from collapsing) vehicle or persons. be available on the working area until completion of the
5 lifting/All personnel must be aware of the work procedure/TBM
to be taken prior to starting each operation/Provide sufficient
barricades and barriers to stop the unauthorized person to
enter into the area/All personnel should have ear plug and
proper PPE.
Page 2 of 4
Dewatering (if water is encountered during Presence of underground services/Defective or Follow PTW and CMS procedure/TBM with all concerned teams
excavation, use suitable dewatering methods like inadequate equipment/Incompetent prior to start work/Do not use damaged electrical hand tools
water pumps to remove it. Ensure that the operatives/generation of noise/Collapse of and cable/Use inspected equipment, machinery, tools for the
discharge of water does not caused erosion or excavation/Electrocution/Unauthorized operator/Water work/Only experienced and competent operators should
flooding in nearby areas0 accumulation/Spillage of oil/Collapse of excavation/Use operate the equipment/Workers exposed to noise provide
of generator and water pumps, presurized hoses and earplugs/Keep safe distance and wear proper PPE while working
6 electrical cables near the electrical area/Keep equipment at safe distance from
trench's edge/Provide proper drainage of water/Always provide
spill drip tray below dewatering pumps and other equipment or
machinery/Generator must have PTO/Pressurize hoses must
have proper fittings and whip-checks/Electrical cable must be
manage properly and must not be wet.
Inspection (regularly inspect the excavation site to Lack of communication/Inadequate proceure/Unskilled Safety orientation to the workers/TBM to the workers prior to
ensure the continued stability of the excavation personnel/Weather condition/Deep excavation/Presence commencement of activity/Must be awae of weather
7 walls and the effectiveness of the dewatering of water/Re-routing of perimeter access. condition/No hurry to carry out any activities/Display warning
process signs/Follow safety precaution and use the proper access and
egress/Wear proper PPE.
In case of night work or lack of illumination Tripping of materials over equipment/Flying debris Provide proper lightings in the work area/Provide spotters if use
8
causing injury/Insufficient illumination heavy equipment/Apply for night work permit
In case of severe weather Flood, Lightings, Heavy Rain and Wind Follow severe weather plan/Update weather chart/In case of
flooding and typhoon follow EREP./Project Manager will stop
9
the work upon the recommendation of Safety Manager.
EXCAVATION CREW MEMBERS
NAME POSITION SIGNATURE NAME POSITION SIGNATURE
Page 3 of 4
Prepared by: Reviewed and Noted by:
ERIC ESGUERRA ARMANDO ABALLE
Site Safety Officer 3 HSE Manager
POWERCHINA PHILIPPINES CORPORATION PPC-POWERCHINA-CDEC Consortium
SMR STP Project SMR STP Project
Page 4 of 4
