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El
<br /> WORK WITHIN'APPROACH ❑ Prepare project-specific written"Electrical Safety Program"addressing(at a minimum):
<br /> BOUNDARY"OF EXPOSED, • Workers trained/designated as"Qualified Electrical Workers"per NFPA 70E(US)/CSA Z462(CAN)
<br /> ENERGIZED(OR POTENTIALLY . Assess risks of electrical shock(voltage levels and sources),arc flash hazard and secondary hazards.
<br /> ENERGIZED)CONDUCTORS AND/OR • Affix electrical hazard warning label to electrical enclosure(s)to be accessed.
<br /> CIRCUIT PARTS CONNECTED TO • Physically delineate arc flash-or limited approach boundary,whichever is farthest from hazard source.
<br /> POWER SOURCE 50-600 V*: • Only"qualified"workers allowed within approach boundaries;prevent entry by non-qualified personnel.
<br /> ❑AC ❑DC ❑3-phase Establish electrically safe working condition;work on live circuits prohibited(except for diagnostic testing).
<br /> ❑Battery and/or solar power • Use PPE for shock/arc flash protection,as required.
<br /> ❑Capacitor(s) I • Use other safe procedures/equipment required for the task,such as lockout/tagout.
<br /> ❑Induced voltage
<br /> ❑Stray voltage>50V from soil
<br /> electrodes
<br /> *Working on>600 V not permitted Geosyntec Procedure(s):HS-121-Electrical Safety,HS-129-High Voltage Electricity Safety
<br /> for Geosyntec personnel
<br /> LOCKOUT/TAGOUT(LO/TO)OF ❑Prepare site-specific written LO/TO program,and equipment-specific written LO/TO procedures(as
<br /> ELECTRICAL ENERGY To prevent applicable);implement control procedures for hazardous energy sources,provide locks/tags,train workers,
<br /> unplanned start-up or release of designate"authorized"personnel,notify"affected"personnel.
<br /> energy when equipment is under
<br /> maintenance/repair. Geosyntec Procedure(s):HS-119-Lockout Tagout,HS-121-Electrical Safety
<br /> WARNING! Confirmed or possible ❑Follow safe work practices per DAL"Utility-Related Hazards."
<br /> close proximity to OVERHEAD
<br /> ELECTRICAL UTILITY LINES. Geosyntec Procedure(s):HS-304-Overhead/Underground Utility Hazards
<br /> D.11. UTILITY-RELATED HAZARDS ® Applicable ❑ Not Applicable, Not Anticipated
<br /> Site-Specific Notes&Clarifications:
<br /> ® OVERHEAD,ABOVE-GROUND El Arrange for power company/utility owner to de energize power line.
<br /> UTILITIES M Do not cross approach boundaries with personnel or equipment;employ other appropriate precautions for
<br /> the conditions(specify above).
<br /> ❑Use additional controls,as applicable:shielding,flagging,observer/monitor.
<br /> Geosyntec Procedure(s):HS 304-Overhead/Underground Utility Hazards
<br /> ® UNDERGROUND UTILITIES ®Confirm appropriate underground utility clearance procedures have been completed prior to ground
<br /> penetrations,and employ other utility clearance/locator practices,as appropriate for conditions.
<br /> ❑Hand digging/augering or vacuum post-holing within 3'of utility locations or other high-risk condition.
<br /> Geosyntec Procedure(s):HS 304-Overhead/Underground Utility Hazards
<br /> D.12. CONFINED 1 ENCLOSED SPACES(Including Hazardous Indoor Spaces) CL Applicable ® Not Applicable, Not Anticipated
<br /> Site-Specific Notes&Clarifications:
<br /> Type of CONFINED/ENCLOSED/ REQUIREMENTS:
<br /> HAZARDOUS INDOOR Workspace: 1. Contact Corp.H&S Department to determine applicability of confined space entry regulations,and to
<br /> ❑Indoors(occupied) determine safe work practices for entry into any confined,enclosed or hazardous indoor spaces.
<br /> ❑Indoors(abandoned,vacant)
<br /> ❑Basement,crawl space,attic 2. Classify the work task by checking one of the following:
<br /> ❑Tunnel,shaft,inspection gallery
<br /> El Storage bin,locker ❑CONFINED SPACE classified by U.S.OSHA as a"Permit-Required Confined Space;"ensure OSHA
<br /> ❑Culvert,catch basin,sewer requirements are met in OSHA jurisdictions.
<br /> ❑Well vault,utility vault,manhole ❑CONFINED/ENCLOSED/INDOOR/CONFINED space NOT classified as an OSHA Permit-Required Confined
<br /> ❑Tank,vessel,silo,vat,hopper Space;develop site-specific entry procedure per applicable regulations and Geosyntec requirements.
<br /> ❑Trench,excavation
<br /> ❑Machine/equipment pit 3. Delineate tasks,hazards and controls associated with the work in Section C.1."Summary of Tasks,Hazards
<br /> ❑Transportation container,railcar and Controls,"and in applicable sections in Parts C,D and E of this THA;incorporate applicable safety
<br /> ❑Other—describe above provisions such as,but not limited to,the following:
<br /> • Risk assessment;entry plan,entry permit system/safety checklist.
<br /> Confirmed or potential hazards: . Air monitoring for atmospheric hazards.
<br /> ❑Flammable/explosive • Entry roles(supervisor,entrant,attendant),buddy system,regulatory training requirement.
<br /> ❑Oxygen deficiency • Protect non-entry personnel from unauthorized entry(labels,signage,barriers)
<br /> ❑Hydrogen sulfide • Ingress/egress(stairway,ramp,ladder,tripod/winch,harness/lifeline,etc.).
<br /> ❑VOCs • Communication/alerting/rescue/emergency plan.
<br /> ❑Carbon monoxide . Entry hazard controls:
<br /> ❑Combustible dust - Isolation,cleaning,purging,lockout/tagout,fire protection.
<br /> ❑Combustion/exhaust emissions - Dilution ventilation to introduce fresh air
<br /> ❑Welding/cutting fumes - Exhaust ventilation to control point source of emissions.
<br /> ❑Electrical - Duct/stack to direct hazardous emissions away from work area.
<br /> ❑Mechanical equipment - Respiratory protection.
<br /> ProjectlTask Name:
<br /> Geosynte& THA Date: Page 9
<br /> consultants
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