shg03

VALERO – KROTZ SPRINGS SHG #3 of 43Revised: 10/6/03

A

Acceptable Entry Conditions...............................3Appendix 1..........................................................25Appendix 2..........................................................30Atmospheric Testing.....................................15, 18Authorized Entrant............................................3, 9

B

Blanket Safe Work Permit..............................3, 11Bulk Chemical Loading or Unloading..................6

C

Check List...........................................................26Cold Work.......................................................3, 11Company Employees.........................................24Competent Person..........................................3, 29Confined Space....4, 16, 19, 20, 22, 23, 25, 29, 30,

31, 32, 34Confined Space Entry..................................22, 28Confined Space Permit...............18, 19, 20, 30, 34

D

Definitions.............................................................3Demister........................................................12, 19Designated Attendant.....................................4, 10

E

E&SA Department....................................9, 21, 23Entry. .3, 4, 5, 14, 16, 19, 20, 21, 22, 23, 25, 29, 30,

31, 32Entry Supervisor..........4, 10, 19, 20, 29, 30, 31, 32Excavation................3, 4, 15, 16, 18, 25, 26, 27, 29Excavation Constraints......................................16

F

Fire Watch.......................................4, 7, 10, 12, 13

G

General Instructions on Safe Work Permitting. 25

H

Hazardous Atmosphere.......................................4Hot Work...................................................5, 12, 13

I

Immediately Dangerous to Life and Health (IDLH)................................................................5

Inerting..................................................................5In-Service Welding...............................................5Inspection......................................................22, 42Issuing the Confined Space Permit...................20Issuing the Safe Work Permit............................11Issuing The Vehicle Entry Permit......................14

L

Lighting/Electrical Power....................................20Line Break.........................................................3, 5

M

Mounted Enclosure..............................................6

N

Nitrogen.................................................................5Nitrogen Purge....................................................23Non-Hazardous Confined Space.......5, 19, 23, 30Non-Pressurized Building Containing Enclosure6

O

Owning Department.5, 6, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 34

P

Permit Enforcement.............................................6Permit Expiration/Renewal.................................11Permitting for Cold Work....................................11Permitting for Confined Space...........................18Permitting For Hot Work....................................12Permitting for Vehicle Entry...............................14Personal Protective Equipment 11, 12, 15, 19, 25,

31, 34Precautions.....11, 12, 15, 19, 22, 26, 29, 30, 31, 32Preparation of the Confined Space Permit.......19Pressurized Building Containing Pneumatic

Controls.............................................................6Purged Or Pressurized Equipment.....................6Purpose.................................................................3Pyrophoric..........................................12, 19, 25, 30

R

Removal of Entrance (Manway) Covers...........18Rescue.......................................6, 9, 10, 22, 25, 31Respiratory Protection........................................21Responsibilities.....................................................6Retrieval System..................................................6

S

Safe Work Permit.........................................22, 25Scope....................................................................3Signing the Confined Space Permit..................19Signing the Safe Work Permit...........................11Special Conditions........................................11, 20

T

Testing.............................................................6, 19Training...............................................................24


U

Unipure.................................................................40

V

Vehicle Entry...................................................6, 14Ventilation......................................................21, 31Vessel.........................3, 4, 5, 12, 21, 25, 30, 31, 39

W

Walk in Enclosure.................................................6Welding...........................4, 5, 21, 26, 35, 36, 37, 38Work Scope........................................................25Work Supervisor...............................................7, 9

SAFE WORK PERMIT GUIDELINES

1.0 PURPOSE

This guideline defines minimum permit requirements, procedures, limitations and provides forms for the issuance of safe work permits within the facility.

2.0 SCOPE

This guideline applies to all persons including Valero and contractor personnel and defines permit requirements, procedures, limitations and forms used in the issuance of safe work permits, including cold work, hot work, vehicle entry, excavation and confined space entry permits to assure consistent safe work permitting within the facility. A safe work permit is required for any Maintenance, repair or construction work within the facility. Permits are generally not required for work performed in office buildings and Maintenance shops except for confined space entry and hot work on equipment that has been in service. Cold work performed by owning area personnel does not require a safe work permit.

3.0 DEFINITIONS

Acceptable Entry Conditions - The atmospheric, access/ egress, and work area conditions that must exist in a confined space before entry is allowed.

Authorized Entrant - A person who is authorized under the terms of the confined space entry permit to enter and exit the space.

Blanket Safe Work Permit - A cold work permit issued within a defined section (see Section 5.1 - Permitting for Cold Work and Line Break) to allow work on a grouping of closely interrelated or similar pieces of equipment (e.g., groups of exchangers, pumps, vessels and connecting piping, etc.).

Cold Work - Any work activity which does not supply sufficient heat or spark energy to provide a potential ignition source for a flammable mixture. This includes general work, scaffolding, cleanup, etc. Hot work, vehicle entry, excavation or confined space entry are not classified as cold work.

Competent Person - For the purposes of excavations, an authorized person who is trained in and is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous or dangerous to employees, and who has authorization to take prompt corrective action to eliminate them.

Confined Space - A space that is:• Sufficiently large and so configured that an individual can bodily enter and

perform assigned work;• Has limited or restricted means of entry or exit;• Is not designed for continuous occupancy; and • May contain one of the following:

· Contains or has the potential to contain a hazardous atmosphere;· Contains a material that has the potential of engulfing an individual;· Has an internal configuration such that an entrant could be trapped or

asphyxiated by inwardly converging walls or by floors which slope downward and taper to a smaller cross-section; or

· Contains any other recognized serious safety and health hazard.

• Examples of confined spaces include but are not limited to: (a) tanks, (b) reactors, (c) vessels, (d) towers, (e) drums, (f) sumps, (g) external floating roofs greater than 12 inches below the maximum fill level, (h) excavations greater than 4 feet deep, and (I) tower skirts.• In addition, temporary shelters used for welding, inspections, etc., where there is a potential for build-up of toxic materials or oxygen depletion may be considered a confined space. These must be evaluated on a case by case bases by the owning department.

Designated Attendant – A qualified individual ("hole watch") stationed outside a confined space as required by the confined space entry procedure.

Entry - The action by which an individual passes through an opening into a confined space. Entry is considered to have occurred as soon as any part of the entrant's body breaks the plane of an opening into the space.

Entry Supervisor - The individual (Superintendent, Shift Supervisor, Lead Technician) responsible for confined space entry activities. This function cannot be delegated.

Fire Watch - A qualified person designated to monitor the area of hot work involving welding or cutting, take appropriate action to reduce risk of fire and if necessary extinguish an incipient stage fire.

Hazardous Atmosphere - An atmosphere that may expose entrants to the risk of death, impairment of ability to exit, injury or acute illness from one or more of the following causes:• Flammable gas, vapor or mist in excess of 10 percent of the lower explosive

limit (LEL)• Atmospheric oxygen concentrations below 19.5% or in excess of 23.5%• Atmospheric concentration of any substance which could result in employee

exposure in excess of its permissible exposure limits (PEL)• Any other atmospheric condition that is Immediately Dangerous to Life or Health

(IDLH)

Hot Work- Work that causes or requires the use of open flames, arcs, sparks, or other forms of high temperature ignition sources that could initiate a fire or explosion. Examples of hot work include welding, burning, soldering, hot tapping/stoppling, drilling, grinding, abrasive blasting, chipping, the operation of impact wrenches, the operation of electronic or electrical equipment that is not intrinsically safe, opening explosion proof electrical enclosures and any other work that may generate sufficient heat that it would pose a possible ignition source.

Immediately Dangerous to Life and Health (IDLH) - Any condition that (a) poses an immediate or delayed threat to life; or (b) would cause an irreversible adverse health effect; or (c) would interfere with an individual's ability to escape unaided from a confined space. The level of contaminant that would pose an IDLH atmosphere is substance specific.

Inerting - The displacement of an atmosphere in a confined space by a noncombustible gas such as nitrogen, to such an extent that the resulting atmosphere will not support combustion or life.

NOTE - This condition results in an IDLH (oxygen deficient) atmosphere. Inert confined space entries are not normally done by company personnel.

In-Service Welding - The practice of welding on equipment (e.g., tank, pipe, vessel, exchanger, etc.) which has not been purged (gas free) and has not been removed from service through conventional methods. This includes but is not limited to grinding, burning or welding.

Joint Job Site Visit - A visit to the job area by an Operations person and the person to do the work (or a representative of the person(s) to do the work) to ensure the safety of the workers and the operation by identifying the hazards associated with the job and the measures and equipment to be used to mitigate or eliminate the hazards. Safety Department personnel may be included in the visit for higher risk or more unusual jobs.

The hazards listed and referred to in sections B – E of the permit form should be considered, as well as all other potential hazards. When a job extends beyond the valid date of the first permit, the extent of the Joint Job Site Visit evaluation may be reduced (as compared to the first permit Joint Job Site Visit) if appropriate in the judgment of the joint visitors.

Line Break - The intentional opening of a process system that may contain flammable, corrosive, or toxic material, or a material under pressure or temperature such that an unplanned opening of the system may result in injury to workers. Examples include spreading flanges, opening exchangers, pulling pumps, cold cutting pipe, etc. Line break, depending on equipment used, could be cold work or hot work.

Non-Hazardous Confined Space - A confined space which normally exists without IDLH conditions. Entry into such spaces requires the issuance of a confined space entry permit. No blinding is required by the Owning Department as part of the permit issuance. Non-hazardous confined spaces are floating roof tank tops, tower skirts, sunken valve and pump manifold areas, cooling tower cells, and fin fans.

Owning Department - The unit/area/department that is responsible for the location in which the work is performed.

Owning Department Representative - Individuals who have received training and a certification of competency in the issuance of permits and associated gas testing. Certification of competency requires passing a standardized written examination.

Retrieval System - The equipment used for non-entry rescue of persons from confined spaces such as a safety harness and life line.

Testing - The process by which the hazards that may confront personnel performing hot work, vehicle entry, or authorized entrants of a confined space are identified and evaluated.

Vehicle Entry - The entry of any motorized vehicle into the battery limits of a process unit, inside tank farm diked areas, or other restricted areas except for trucks loading or unloading at racks.

Mounted Enclosure – small enough to prevent complete physical entry (e.g., cabinet, junction box, analyzer enclosure, etc.).

Walk-in Enclosure – similar to mounted enclosure, but large enough to allow complete physical entry (e.g., walk-in compressor control equipment).

Non-Pressurized Building Containing Enclosure(s) – building containing purged or pressurized equipment (e.g., analyzer building, blend building, etc.)

Pressurized Building Containing Pneumatic Controls – pressurized building containing control equipment that has the potential to release purged air (e.g., pressurized control room)

4.0 RESPONSIBILITIES

Individual/Group Assigned ResponsibilitiesOwning Department Potential Oxygen Deficiency Labeling:

Mount and maintain warning of O2 deficiency hazards and entry requirements on enclosures and buildings potentially subject to O2 deficiency.

Permit Preparation: Prepare equipment or area Prepare and issuing all permits Issue permits for all bulk chemical loading or unloading activities. Initially review the Process Unit Overview with all contractors and

inform them of the location of posted Process Unit Overviews Perform a joint job site visit as required in the permit preparation

procedure (Appendix 1). Ensure that work proceeds in accordance with the terms of the permit

issued. Ensure that the recipients of the permit understand its terms and

limitations. Ensure that work will not cause any negative impacts to the

environment. Ensure that the atmosphere is continuously monitored during a

confined space entry as outlined in the Confined Space Permit Preparation section of this guideline.

Permit Enforcement/Follow up: When the permit must be updated during the shift while the permit is

valid, enter the update time(s) in the Permit Timing box and initial by the updated items.

Cancel the permit if conditions of the permit are not being met or if the area or equipment conditions change requiring either the termination or re-issuance of the permit.

Ensure that the permit issuance procedures are being followed. Ensure that the terms of specific permits are being followed. Reviewing and signing hot work permits. Ensure that completed entry and confined space entry permits are

returned to the Safety Department.Work Supervisor or designee (company

or contractor)

Ensure that all work carried out by personnel in their work crew is covered by valid permits.

Ensure that all members of the work crew review the permit requirements and sign the back of the permit form to confirm their understanding. If the permit is changed or updated, ensure that all members of work crew re-sign to confirm understanding of the change(s).

Review and sign all permits issued for confined space entry, hot work, hot taps, supplied air work, or work requiring additional safety equipment such as slicker suits, goggles, face shields, etc., such as that required for work in acid or caustic areas.

Ensure that a trained designated fire watch and/or designated attendant is provided when needed.

Ensure that all personnel in their work crew that may enter a confined space are trained as authorized entrants.

Determine the number of entry portals required for a confined space.

Individual/Group Assigned Responsibilities Ensure that the permit form is available at the job site at all times while

the job is underway. Determine the number of entry attendants needed for multiple portal

entries into a confined space. Determine the type or method of communication used between the

designated attendant(s) and authorized entrants. Ensure that the atmosphere is continuously monitored during a

confined space entry as outlined in the Confined Space Permit Preparation section of this guideline.

Ensure that all personnel in their work crew are aware of and trained in the relevant chemical and process hazard information for the area in which they are working.

Work Supervisor or designee (company

or contractor)

Obtain proper permits from the Owning Department and review and accept the permit terms and restrictions prior to starting work.

Provide estimated number in work crew. Assure that a joint job site visit as required in the permit preparation

procedure (Appendix 1) is performed. Review the permit with the work crew.

NOTE:CONTRACTORS MUST REVIEW THE PROCESS UNIT OVERVIEW WITH ALL PERSONNEL INVOLVED IN THE WORK ACTIVITIES DESCRIBED ON THE PERMIT PRIOR TO STARTING WORK.

Ensure that the work described in the permit is completed and/or left in a safe condition prior to leaving the work area, including cleaning the area up.

Check in with the confined space designated attendant when entering and exiting a confined space.

Maintain their copy of the permit at the work site. Ensure the Owning Department fully understands the scope of the

work to be done. Sign and return their copy of the permit to a person in the Owning

Department when the work is complete or the permit expires.HSE Department Provide advice/training as required in gas testing.

Sign initial confined space entry permits. (Non-Hazardous Confined Spaces excepted, See section 5.5.1)

Annually review the confined space entry program using completed permits to determine where improvements, if any, can be made to better protect confined space entrants (the annual review is documented).

Maintain files of completed work permits involving gas tests indefinitely.

Establish general standards for acceptable entry conditions. Establish general standards for equipment required under this SHG. Develop and implement procedures and resources for rescue and

emergency services. Authorized Entrants

(company or contractor)

Adhere to the terms and restrictions of the confined space entry permit.

Check in and out of the confined space with the designated attendant. Use the safety equipment specified on the entry permit properly.

Individual/Group Assigned Responsibilities Know the hazards that may be encountered during the entry and the

effects of overexposure to potential contaminants. Stay in communication with the attendant during entry and promptly

following any emergency instructions. Exit the space based on their own judgment, an order from the

attendant, or an alarm. Entry Supervisor Determine if acceptable conditions are present at a confined space.

Authorize entry. Oversee confined space entry activities Know and properly communicate the hazards that may be faced during

entry and the effects of exposure to the hazards. Terminate entry as required.

Fire Watch Have NO OTHER RESPONSIBILITIES that would interfere with his/her reliably fulfilling fire watch duties.

Maintain vigilance for changes in area or work conditions that may increase the chance for a fire or explosion and stopping work accordingly.

Have a charged water hose or fire extinguisher available and extinguish incipient fires that may start as the result of hot work being performed. The area must be kept wet/damp at all times if required by the permit.

When exposed combustibles (wood, paper, rags, dry grass, etc.) are present within 35 feet of the work area firewatch can only leave the area after hot work has been stopped for thirty minutes or a relief attendant has been obtained.

Designated Attendant(Hole Watch)

Have NO OTHER RESPONSIBILITIES that would interfere with his/her reliably fulfilling hole watch duties.

Know the hazards that may be encountered during entry and the effects of exposure to the hazards.

Maintain an accurate roster of personnel who enter and exit the confined space.

Remain outside the confined space. Monitor the atmospheric testing equipment used for continuous

monitoring and respond appropriately. Communicate with entrants and monitor status of a change in

conditions that would create a need to evacuate the confined space. Maintain a means of communicating with the Owning Department

and/or Maintenance. Order an evacuation of the confined space, performing non-entry

rescue if conditions warrant, or summon rescue or emergency services.

(THE ATTENDANT WILL NOT ATTEMPT ENTRY RESCUE!) Ensure that only authorized entrants are allowed into the confined

space.

5.0 PERMITTING PROCEDURES5.1 Permitting for Cold Work

PERMITTING FOR COLD WORKACTION DESCRIPTION

Preparation of the Cold Work Permit

(refer to Appendix 1 for additional details on the completion of the permit form)

Upon receipt of a Maintenance work order or request, the Owning Department will prepare a Safe Work Permit based on:

∙ Understanding the nature and extent of the work to be done. ∙ A review of the impact of the work on the operability/safety of the

process or general area by conducting a job site visit before the permit is issued. Prior to more hazardous activities this visit is made collectively with the Maintenance/contract craftsmen BEFORE THE WORK IS ALLOWED TO BEGIN (see Appendix 1, Section B).

∙ Communicating to the persons who will perform the work, the personal protective equipment and other precautions that need to be taken to perform the work safely.

∙ Ensure that the equipment to be worked on is appropriately prepared (i.e., locked out, drained, steamed, blinded, etc.), and if being worked on while still operating, what additional precautions are necessary. (Bring the green copy of the permit in the field for a reference during jobsite preparation.)

∙ Ensure that all personnel who may be impacted by the work are aware that the work is commencing.

Signing the Safe Work Permit

By the Owning Department representative. By the work supervisor, designee or contract craftsmen.

Issuing the Safe Work Permit

By the Owning Department to the Maintenance/contract craftsmen that will perform the work.

Permit to remain on the job site until completion of the work or the permit expires, whichever occurs first.

Permit must be legibly written/completed. Permit

Expiration/Renewal Unless special provisions are made, a new permit is required at the

beginning of each new work shift for the Owning Department and work crew.

Expired permits and permits on work that has been completed are returned to a person in the Owning Department that issued it and forwarded to Safety.

Special ConditionsBlanket Safe Work

Permitting

During process unit turnarounds, blanket safe work permitting of crafts for cold work can be done with prior agreement of Owning Department and work crew supervisor.

5.2 Permitting For Hot Work

PERMITTING FOR HOT WORK ACTION DESCRIPTION

Preparation of the Hot Work Permit

(refer to Appendix 1 for additional details on completion of the permit form)

Upon receipt of a Maintenance work order or request, the Owning Department will prepare a Hot Work Permit based on: Understand the nature and extent of the work to be done. Review the impact of the work on the operability/ safety of the process

or general area by conducting a job site visit before the permit is issued. This visit is made jointly with a representative of the work crew BEFORE THE WORK IS ALLOWED TO BEGIN (see Appendix 1, Section B).

Performing gas testing of the area as appropriate where the work will be performed; the boundaries of the area to be tested depend on the nature of the work to be done.

Ensure that the results of any gas tests taken are included on the permit, including the serial number and date of last calibration of the instrument used.

Communicate to the persons who will perform the work, the personal protective equipment and Fire Watch precautions that need to be taken to perform the work safely.

NOTE - HOT WORK NOT INVOLVING OPEN SPARKS OR FLAMES MAY NOT REQUIRE THE DESIGNATION OF A FIRE WATCH ATTENDANT (SEE NOTES IN APPENDIX). Ensure that the equipment or area is appropriately prepared, i.e.,

sewers covered, equipment drained and cleaned, combustibles removed, blinds in place, etc. (Bring the green copy of the permit in the field for a reference during jobsite preparation.)

NOTE: HOT WORK INVOLVING VESSELS OR DRUMS EQUIPPED WITH A DEMISTER PAD, THE DEMISTER PAD WILL BE REMOVED OR FIRE PROTECTED. In addition, where pyrophoric materials are concerned refer to SHG #13.

If a Fire Watch is required, ensure that a fire extinguisher or charged water hose is available at the scene of the work.

Ensure that all personnel who may be impacted by the work are aware that the work is commencing.

Ensure that the name of any designated Fire Watch is included on the form.

Signing the Hot Work Permit

By the Owning Department representative and the individual who did the gas testing. (The name of the person doing the gas testing may be printed in the space provided.)

By the company work crew representative and/or contractor work crew representative.

Issuing the Hot Work Permit

By the Owning Department to the company work crew representative or contractor representative.

Permit to remain at the job site until completion of the work (including extended Fire Watch) or the permit expires, whichever occurs first.


Expiration/Renewal Work described in the permit must commence within 2 hours of gas

testing; if it does not, a new gas test will be required prior to beginning

PERMITTING FOR HOT WORK ACTION DESCRIPTION

Completed Work work. In work areas where exposed combustibles (wood, paper, rags, dry

grass, etc.) are present within 35 feet of the work area, the firewatch, or a relief attendant, is required to remain at the work site for a minimum of thirty minutes after completion of permit-related hot-work activities before turning in the work permit.

Unless special provisions are made, a new permit is required (and gas test, if appropriate) at the beginning of each new work shift for the Owning Department and work crew.


5.3 Permitting for Vehicle EntryPERMITTING FOR VEHICLE ENTRY

ACTION DESCRIPTION Preparation of the

Vehicle Entry Permit (refer to Appendix 1 for additional details on completion of the permit form)

Upon receipt of the request for a vehicle entry permit, the Owning Department representative will prepare a Vehicle Entry Permit based on: Understanding the nature and extent of the work to be done. A review of the impact of the vehicle entry on the operability/safety of

the process or general area by visiting the general areas where the vehicle(s) will enter, drive through and/or be operated.

A gas test of the areas affected by the vehicle entry. Ensure that the results of any gas tests taken are included on the

permit, including the serial number and date of last calibration of the instrument used.


Ensure that the travel route is defined and communicated (including pathways, street names and/or gate numbers), and a spotter is assigned if necessary.

Signing the Vehicle Entry Permit

By the Owning Department representative and the person who did the gas testing and site inspection.

By the company work crew or contractor representative, driver of the vehicle, or the contract craftsmen.

Issuing the Vehicle Entry Permit

By the Owning Department to the company work crew/ contractor representative.

Permit to remain at the job site until completion of the work or the permit expires, which ever occurs first.


Expiration/Renewal Work described in the permit. Initial vehicle entry must be made within 2 hours of any initial gas

testing; if it does not, a new gas test will be required prior to beginning work.

If the vehicle or the work shuts down for more than two hours, a new gas test is required.



5.4 Permitting For ExcavationPERMITTING FOR EXCAVATION

ACTION DESCRIPTION Atmospheric Testing Must be performed prior to ANY entry (other than entry required for

performing atmospheric testing of large confined spaces). Confined Space work described in the permit must begin within 2 hours

of gas testing; if it does not, a new gas test will be required prior to beginning work.

NOTE - The atmosphere during any initial entry for testing will be assumed to be IDLH; PPE for personnel entering to perform gas testing will be selected accordingly. Will be performed by a trained, Owning Department representative with

advice as required from Safety. Will be performed in the order of oxygen, flammable, and then air toxins

unless the analyzer monitors for all simultaneously. Will be performed with an instrument that has been calibrated. Continuous monitoring may be required under special situations as

outlined in the Confined Space Permit Preparation section of this guideline.

Preparation of the Excavation Permit

(refer to Appendix 1 for additional details on

completion of the permit form)

Prior to beginning the excavation and as part of permit preparation, the Maintenance Department will contact if appropriate local or state authorities, companies or utilities. Contractors must contact the Maintenance Department before any excavation work is done.

Upon receipt of a Maintenance work order or request, the Owning Department will prepare an Excavation Permit based on:∙ Understanding the nature and extent of the work to be done. ∙ A review of the impact of the work on the operability/ safety of the

process or general area by conducting a job site visit before the permit is issued. Typically, this will require a visit made jointly with the company work crew or contractor representative BEFORE THE WORK IS ALLOWED TO BEGIN (see Appendix 1, Section B). Drawings of underground tanks, lines and utilities will be reviewed as needed.

∙ Perform gas testing of the area as needed.∙ Ensure that the results of any gas tests taken are included on the

permit, including the serial number and date of last calibration of the instrument used.

∙ Communicate to the persons who will perform the work, the personal protective equipment and other precautions that need to be taken to perform the work safely.

∙ Ensure that the immediate and surrounding area to be involved is appropriately prepared, i.e., sewers covered, perimeter barricaded, equipment drained and cleaned, combustibles removed, a spoil area or container established, etc.

∙ Ensure that all personnel who may be impacted by the work are aware that the work is commencing.

PERMITTING FOR EXCAVATION ACTION DESCRIPTION

Signing the Excavation Permit for Confined Space Entry

(See SHG 19.)

By the Owning Department representative and the person who did the gas testing.

By the company work crew or contractor representative. By the company or contractor competent person if the excavation is

deeper than 4 feet and must be entered. Issuing the Excavation

Permit By the Owning Department to the company work crew or contractor

representative. Permit to remain posted in the area until completion of the work or the

permit expires, whichever occurs first. Permit must be legibly written/completed.

Excavation Constraints

If the excavation is deeper than 4 feet and must be entered:∙ It must be inspected by the company or contractor competent person

to assure that it is properly shored or sloped and barricaded and has adequate access and egress.

∙ It must be permitted as a confined space prior to entry (see Confined Space Entry table below) and will require a confined space attendant (hole watch).

∙ Excavated soil must be kept at least 2 feet from the edges of the excavation.

∙ It must be re-inspected by the company or contractor competent person after a rainstorm or any event that may compromise the integrity of the excavation walls.

All adjacent structures, buildings, walls, etc. must be braced or underpinned to prevent collapse into the excavation.

Trenches and excavations will have barriers set back far enough to prevent vehicular traffic from causing cave-ins.

Permit Expiration/Renewal

Excavation work described in the permit must begin within 2 hours of gas testing; if it does not, a new gas test will be required prior to beginning work.


Expired permits and permits on work that has been completed are returned to a person in the Owning Department that issued it.

5.5 Permitting for Confined SpaceGENERAL REQUIREMENTS FOR CONFINED SPACES

ACTION DESCRIPTIONRemoval of Entrance

(Manway) Covers Any conditions making it unsafe to remove a cover will be eliminated to

the extent practical before the cover is removed. Owning department will assure the following actions are taken to make a space "safe" : ∙ Blinding and/or disconnecting all lines entering the space. ∙ Cleaning the space thoroughly by draining, water washing, steaming,

or other suitable means. ∙ Locking out/tagging out/disconnecting devices such as mixers,

radiation sources, etc. When entrance covers are removed, the opening shall be promptly

guarded by a railing or barrier to prevent accidental entry or falls, etc., until the space is permitted and made ready for entry.

A sign stating "DANGER – CONFINED SPACE - Enter By Permit Only" will be immediately placed at the entry portal by whoever removes the entrance cover. Owning department is responsible for making the sign available.

Excavations Adequate means of exit must be provided such as a ladder or steps so that a person must not have to travel more than 25 feet to exit.

CONFINED SPACE PERMITACTION DESCRIPTION

Atmospheric Testing Must be performed prior to ANY entry (other than entry required for performing atmospheric testing of large confined spaces).

Confined Space work described in the permit must begin within 2 hours of gas testing; if it does not, a new gas test will be required prior to beginning work.

NOTE - The atmosphere during any initial entry for testing will be assumed to be IDLH; PPE for personnel entering to perform gas testing will be selected accordingly. Will be performed by a trained, Owning Department representative with

advice as required from Safety. Will be performed in the order of oxygen, flammable, and then air toxins

unless the analyzer monitors for all simultaneously. Will be performed with an instrument that has been calibrated .1

Will be done initially with air movers off; subsequent retesting can be done with the air movers remaining on.

1Gas testing instrumentation must be regularly calibrated in accordance with the manufacturer's Recommendations. Exact time periods may vary. Typically, formal calibrations are required at least monthly. (Records of these formal calibrations must be maintained.) However, a field check of the operability of the instrument is required at least before each day's use.


Preparation of the Confined Space

Permit (refer to Appendix 2 for additional details on completion of the permit form).

Upon receipt of a Maintenance work order or request, the Owning Department will prepare a Confined Space Permit based on: Understanding the nature and extent of the work to be done so that

potential hazards can be identified, described in the permit and suitably addressed.

Assuring that all pre-entry preparations of the space have been completed (e.g., blinding, steaming, chaining/locking of valves, locking out of electrical and radiation sources, opening of bleeders, access and egress from the space is easy, etc.) by conducting a joint job site visit with the company work crew or contractor representative (see Appendix 1, Section B). (Bring the green copy of the permit in the field for a reference during jobsite preparation.)

Perform initial entry gas testing of the space (see notes above on Atmospheric Testing).

Ensure that the results of the gas test are included on the Confined Space Permit, including the serial number(s) and date of last calibration of the instrument(s) used to perform the testing.

Communicate to the persons who will perform the work, the hazards, the required personal protective equipment, and other precautions needed to perform the work safely.

Assigning qualified individuals to be the designated attendant(s) (hole watch).

Ensure that the atmosphere is continuously monitored during a confined space entry when special conditions exist such as but not limited to the following:- Use of inert gases- Possibility of restricted ventilation- Possibility of introduced toxic gases The Owning Department or Safety Department can require continuous monitoring during confined space entry when conditions initiate additional concerns.


NOTE: For spaces containing demister pads consider the provisions of SHG #13 Pyrophoric Iron Sulfide Deposits.

Signing the Confined Space Permit

By the Owning Department representative who performed the gas testing.

By the Entry Supervisor. By a Safety representative (INITIAL CONFINED SPACE PERMIT ONLY,

NON-HAZARDOUS CONFINED SPACE EXCEPTED).


Issuing the Confined Space Permit

Is issued to the space, not to any specific craft or contractor. Must describe the method of communication between the attendant and

personnel inside the space. Is used by the designated attendant to keep a running tally of entrants

entering and leaving the space. Is used by the attendant to keep a record of initial and subsequent gas

tests of the space. Must remain with the designated attendant or posted at the entry portal,

normal access ladder/stairs, or other effective location for review. Confined Space

PermitRenewal/Expiration

Can be issued for the job duration but will not exceed 24 hours. Must be canceled and reissued after a significant plant emergency that

may compromise the validity of the permit conditions. Must be canceled and reissued if the configuration or use of the space

changes in such a way that hazards are increased. If any of the entrants detect a potentially hazardous atmospheric

condition, the permit must be pulled until an investigation is made by the Entry Supervisor. This action would be noted on the comment section (reverse side) of the permit form. If nothing is found, the permit should be marked in the comment section as "REVALIDATED."

If the Confined Space Permit is canceled, all craft specific permits referencing this permit must be canceled and reissued as well.

After completion of the work or expiration of the permit, it must be returned to a person in the Owning Department for cancellation and subsequent return to Safety for filing.

Special Conditions/ Deviations

NEW CONSTRUCTION: Any deviations of confined space entry permitting requirements will be a

joint decision by Maintenance, Engineering, Operations and Safety. Lighting/Electrical

Power Artificial lighting or power used within a confined space will meet the

following requirements: ∙ Use a 12-Volt power supply or a 120-Volt system with ground fault

circuit interrupters (GFCI's). ∙ Meet the requirements for Class I, Division 2, Groups C & D rating

where possible explosive or flammable atmospheres cannot be eliminated.


Ventilation Grounded air movers will be provided for all vessel confined space entries where the design of the vessel will allow.

If the temperature within the space is in excess of 105o F, it will not be permitted for entry without special provisions determined by discussion between the Operations, Maintenance or Contractor Supervisor and Safety.

Ventilation systems meeting the requirements detailed below must be implemented, or supplied air respirators must be worn by welders and other personnel inside the space when welding in the following confined spaces:∙ Work space is less than 16 feet high;∙ Volume of the space is less than 10,000 ft3 per welder;∙ Work areas where there are partitions, structural barriers, or other

barriers that significantly obstruct airflow (such as baffles, trays, or limited access openings)

If the space meets one of the criteria above, one of the following ventilation options must be implemented or supplied air utilized by all persons in the space:∙ Provide at least 2000 ft3 / min of airflow for each active welders; or∙ Provide each welder with a local exhaust device capable of maintaining

a velocity of 100 fpm toward the air intake.Welding When arc welding inside of a confined space is suspended for lunch,

breaks or shift change, the electrodes shall be removed from the holders and the holders located so that accidental contact cannot occur. Also, the welding machine must be disconnected from the power source or turned off in the case of a diesel-powered machine.

When gas welding or cutting inside of a confined space the torch valves must be closed and the fuel-gas and oxygen supply to the torch must be positively shut off at a point outside the confined space whenever the space is evacuated for extended work stoppage (i.e. breaks or lunch). Where practicable, the torch and hose must also be removed.

Respiratory Protection

If cleaning and/or forced air ventilation do not adequately remove air contaminants from the confined space or the work is such that it will introduce additional contaminants into the atmosphere within the space, RESPIRATORY PROTECTION WILL BE USED. ∙ Required respiratory protection will be specified by the Owning

Department Supervisor with advice as needed from Safety. ∙ Entry into an IDLH atmosphere will only be made after alternatives are

explored and found impractical and agreement is reached between the Operations, Maintenance and the Safety Manager/Superintendent or HS&E Director.

∙ Entry into an IDLH atmosphere will require that all entrants be equipped with a positive pressure air line respirator with an emergency egress pack and a safety harness and lifeline.

CONFINED SPACE PERMITACTION DESCRIPTIONRescue Non-entry rescue retrieval systems will be worn by authorized entrants

unless the retrieval equipment would increase the overall risk of entry or would not contribute to the rescue of the entrant.

Authorized entrants will wear rescue retrieval systems including:∙ an approved harness, ∙ retrieval line where it aids in rescue∙ Wristlets and a retrieval line can be an acceptable alternative if the

harness is infeasible or less effective. The other end of the retrieval line will be attached to a fix point outside

the permit space for spaces less than 5 feet deep. For spaces more than 5 feet deep, a mechanical retrieval device outside

the permit space will be available to allow prompt rescue.NOTE: Unless the harness or retrieval system increases the hazard to the individual(s) within the space. (Ex: trayed towers, desalters, fin fans, etc.) • Rescue Team personnel will be available prior to issuing any Confined

Space Entry Permit.

CONFINED SPACE ENTRY PERMITACTION DESCRIPTION

Preparation of the Confined Space

Entry Permit(Refer to Appendix 1 for additional details on the completion of the permit form).

SAFE WORK PERMIT FOR CONFINED SPACE ENTRY MUST BE ISSUED FOR EACH CRAFT OR CONTRACTOR.

Inspection activities (Maintenance, Safety, Engineering) may be performed under an active craft or contractor permit. Owning Department personnel signing the permit must be aware of all work to be performed, including inspection activities.

Signing the Confined Space Entry Permit

By the Owning Department representative. By the company work crew or contractor representative.

Issuing the Confined Space Entry Permit

Must reference the number of the Confined Space Permit (issued to the confined space).

Is issued by the Owning Department to the Maintenance/ contract craftsmen that will perform the work.

Will contain any special precautions or restrictions pertinent to that particular task or craft.

Must be available at the work site for review. Renewal/Expiration Is issued for one Maintenance or Owning Department work shift.

Must be canceled and reissued after any change in plant conditions or a plant emergency that may compromise the validity of the permit conditions.

After completion of the work or expiration of the permit, the permit must be returned to a person in the Owning Department for cancellation and subsequent return to Safety for filing.

5.5.1 Permitting for "Non-Hazardous" Confined Space Entry

Certain spaces meeting the OSHA definition of "confined space" exist within the refinery by virtue of equipment of process design or layout. They are "confined spaces" either due to their limited access or egress and are "not designed for continuous occupancy." These spaces are identified by warning signs. Non-Hazardous confined spaces are:

∙ External Floating Roof Tank Tops (Refer to SHG #16 for special requirements)∙ Tower Skirts∙ Equipment Installed more than 4 Feet Below Grade Within Concrete Containment

Basins (e.g., Valve and Pump Manifold Areas and Some Tanks) ∙ Cooling Tower Cells∙ Fin Fans (may not have warning signs)

Entry into such spaces requires the issuance of a confined space entry permit. However, no blinding or area preparation is typically required by the Owning Department personnel as part of the permit issuance.

HS&E personnel do not need to sign the Confined Space Permit for "non-hazardous" confined space entry. All other signatures and requirements typical of the preparation and issuance of these and the subsequent confined space entry permits issued to each work group entering the confined space remain the same.

5.6 Permitting For Enclosures That May Contain Hazardous Gases

For Mounted Enclosures, Walk-In Enclosures, and Non-Pressurized Building Containing Enclosures, appropriate labeling will be mounted warning of the potential hazards of oxygen deficiency and of the entry requirements, where applicable.

For Walk-In Enclosures, and Non-Pressurized Building Containing Enclosures, access will be controlled with a lock-and-key, a safe work permit, and monitored with initial air sampling for oxygen content.

6.0 TRAINING

6.1 Company Employees

Prior to the assignment of duties under this SHG, employees will be trained in the execution of the duties for which they are responsible.

Records of the training will be maintained in the plant Training Department files.

This training will include classroom and hands on training on the proper use of gas testing equipment for permitting purposes.

6.2 Contractors

Prior to the assignment of duties under this SHG, contractor employees will be trained in the execution of the duties for which they are responsible.

During their safety orientation, contractors will be informed of Valero’s’ permitting procedures. Process Unit Overviews are posted at each unit and shall be reviewed with each employee.

Contractor representatives will participate in the joint job site visits and discuss with the Valero permit issuer the exact nature and extent of the work planned. Coordination of the work with the Valero Maintenance and Owning Department will be required. The details of how this coordination will be handled will be agreed upon with the Valero contractor representative prior to the start of work.

Valero’s' confined space entry procedure comprises the minimum standards for any entry. If any measure in excess of these requirements will be used by the contractor, this information must be communicated to the Valero permit issuer prior to the issuance of the work permit.

APPENDIX 1 - SAFE WORK PERMIT PROCEDURE

General Instructions on Safe Work Permitting

NOTE: The following sections refer to the corresponding letter on the Permit Form (See Attachment 1).

A. WORK SCOPE

This section shall be completed by the Owning Department. When filling out the Permit, use as much detail as possible to encompass the complete work

scope. The work scope section contains information concerning the types of work involved to complete the task, the specific location, the equipment to be worked on, the work to be performed, and the craft/company that will do the work and the estimated number of employees in the crew.

More than one box may be checked. For example, a work permit for an excavation could also require a vehicle entry as well as a Confined Space Entry Permit. List each vehicle and route of entry.

Generally, each craft and company must be issued its own Permit.

B. POTENTIAL HAZARDS

This section is to be completed by the Owning Department. BEFORE opening a vessel, Owning Department and Maintenance personnel should also

consider whether pyrophoric iron sulfide or other deposits may be present. If pyrophoric materials may be present, personnel should follow the refinery pyrophoric hazard safety instructions as part of preparing and issuing the safe work permit. (See SHG 13)

All of the actual or potential hazards which apply to the specific work activity will be checked. The Owning Department is responsible for providing relevant chemical and process hazard information to contract work crews. Process Unit Overviews and Material Safety Data Sheets are available to contractors at specified locations.

C. PERSONAL PROTECTIVE EQUIPMENT

This section is to be completed by the Owning Department and the Maintenance or contractor work crew representative. Assistance to answer personal protective equipment needs can be obtained from the Personal Protective Equipment (PPE) Hazard Assessment forms (Attachment 3) or from the facility Safety Department.

All personal protective equipment necessary to work safely will be checked or listed. Where rescue by entry is not possible, a mechanical retrieval device will be required

to allow non-entry rescue. The end of the lifeline must be attached to a fix point outside the permitted space or to the mechanical retrieval device.H2S monitors are required to be worn by individuals entering areas that may contain H2S as outlined in SHG #40.

D. CHECK LIST

This section is to be completed by the Owning Department and the name of the person verifying the actions indicated on the bottom of the blocked area that includes Section “B”, “C”, “D”, and “E”.

Check all boxes that apply. A joint job site visit, i.e., a collective visit to the work site by an Owning Department

representative and a work crew representative, is REQUIRED for hot work, hot tap/stopple work, confined space entries, excavations, opening lines or equipment, and work requiring the use of supplied breathing air. The person issuing the permit must determine, by the nature of the hazards involved, the requirement of a joint job site visit in regards to work not listed. The purpose of the collective visit is to identify and discuss the work to be done, procedures to be used, and precautions to be taken. Information generated by this discussion, in conjunction with the green copy of the permit, is used to prepare the safe work permit.

Check JSA Completed box if a Formal (written) Job Safety Analysis is done. The Owning Department representative will review the area for potential or actual hazards and

bring the green copy of the permit into the field for reference as part of the permit preparation. The Maintenance representative will visit the site of the work to ensure that the area has been made ready for work activities.

Even for repetitive or continuing type work, the Owning Department representative should revisit the area each time the permit is reissued or renewed to assure that conditions have not changed and that adequate housekeeping is being maintained, even during construction activities. Some examples of repetitive type work are general clean-up or housekeeping tasks, general preparatory work (i.e., scaffold building, creation of lay down areas, and multiple day new construction, such as tank/unit construction, etc).

E. PRECAUTIONS

This section is to be completed by the Owning Department. The precautions indicated are to be taken by the Maintenance/Contractor before the work

is started. All designated fire watches and/or designated attendants must be named on the permit

and wear red vests. Fire watches shall be required whenever cutting and welding is performed in locations where a fire might develop, or where the following conditions may exist:

(1) Appreciable flammable or combustible material is present in the general area closer than 35 feet to the location of the cutting/burning;

(2) Wall or floor openings are present within a 35-foot radius that do or may expose flammable or combustible materials; or

(3) Combustible/flammable materials are adjacent to the opposite side of metal partitions, walls, piping, ceilings, or roofs and are likely to be ignited by conduction or radiation.

In the event the designated attendant recognizes the need to evacuate the confined space, an air horn (or any agreed to signal) will be sounded to notify the authorized entrants.

PERMIT VERIFICATION PERFORMED BY

The name of the unit Operator performing the field Check List tasks, Section “B”, and communicating with the Maintenance/Contractor representative regarding section “C”, “D”, and “E” will be printed by the Operator completing the permit. Radio verification from the unit Operator must be obtained ensuring these items have been completed, understood by

the Maintenance/Contractor employees and the area is safe for work to commence.

VERIFICATION RECEIVED BY

The Operator receiving the radio verification from the field Operator will sign his/her name in this section.

MAINTENANCE/CONTRACTOR REPRESENTATIVE

A Maintenance/Contractor representative must sign his/her name in this section. This is to verify that the checked items in section “D” has been completed and the checked items in sections “B”, “C”, and “E” have been reviewed by Operations and understood by the Maintenance/Contractor representative.

A new permit is required for each Owning Department/Maintenance work shift.

PERMIT ISSUED BY

The Owning Department representative (person writing the permit) will sign this section once all the permit conditions have been identified, verified and/or met.

F. ATMOSPHERIC TESTING

This section is to be completed by the Operations Lead Process Tech and/or qualified Owning Department representative.

The Operations Lead Process Tech or qualified Owning Department representative will perform all necessary atmospheric testing for hot work. The results of the testing will be recorded on the permit along with the time the test was taken and the serial number(s) and type of the gas testing equipment used. The name of the individual performing the testing will also be printed on the permit in the blank indicated "Tested By:".

Gas tests must be taken as part of a hot work permit issuance where the work will be done in an area that is electrically classified as a Division 1 or 2 area, which includes the following types of areas:

(1) ISBL (Inside Battery Limits) within any process operating unit;(2) Within the confines of any tank farm dike or retaining wall;(3) Within active hydrocarbon tank truck, rail car, or barge/ship

loading/unloading areas;(4) In the area of gaseous hydrogen storage;(5) Within 30 feet of active open process sewers and/or separators;(6) Within 25 feet of active hydrocarbon conveying pipelines; or(7) Within any excavation.

Neither hot work permits nor gas tests are normally needed for hot work within plant shops. Permits and/or gas testing may be needed when process equipment, vessels, drums, and containers are moved into shop areas for work.

Hot work permits are needed, but gas tests are not normally needed, for hot work performed within office buildings, labs or control rooms.

The Serial Number and Calibration Date of the gas testing device(s) used will be recorded on the permit along with the brand or type of equipment.

During the preparation of the hot work permit, it should be determined whether periodic follow up or continuous testing will be required due to the nature of the work. This decision is based on whether the work activities themselves or conditions within the work area may change the atmospheric quality during the work. Questions regarding uncertainties will be referred to the Safety Department for resolution.

When the qualified Owning Department representative is performing the atmospheric testing for HOT WORK, the following conditions must be met prior to issuing the permit:

Oxygen 19.5% to 23.5%Combustible Gas (LEL) 0%

Additional information on vapors or gases that may be present within a confined space may also be available on Material Safety Data Sheets for materials that have occupied the confined space.

Determine if these initial conditions could change over time due to the type of work to be done, a change in confined space conditions, etc.

If the atmosphere quality could change over time, then the atmosphere within the space will either be periodically or continuously monitored to assure that personnel in the area are not endangered.

When testing for atmospheric hazards, oxygen will be tested first, then combustible gases and vapors, and then toxic gases and vapors. (NOTE - The MSA Passport and similar instruments test all of these parameters simultaneously.)

At a minimum, retesting of the atmosphere is required at the beginning of each Maintenance work shift. If work does not begin within two hours of a gas test, the area or space must again be retested.

When checking for combustible gases, the reading may not be accurate if there is insufficient oxygen. There must be at least 10% oxygen in the atmosphere for the LEL reading to be correct.

Gas testing in the presence of excessive steam will cause the gas-testing instrument to provide inaccurate readings and may damage the meter.

If temperatures are in excess of 150o F, readings will not be accurate. Check the meter to ensure that it responds properly prior to each use. If the meter

does not respond properly, tag it and return it to the designated location within the refinery for recalibration and/or repairs.

Combustible liquids may be present which do not vaporize and register on the meter. These hazards must be visually identified.

G. ADDITIONAL SIGNATURES Various representatives must sign this section depending on the type of work to be

performed. FOR CONFINED SPACE ENTRY

This section must be signed by the qualified Maintenance Tech/Contractor Representative and the Owning Area Superintendent, Lead Process Tech or trained equivalent (i.e., the designated Entry Supervisor). A representative of the Safety Department must sign ONLY the initial Confined Space Permit (the permit issued to the space).

The Maintenance Lead Tech/Contractor Supervisor will sign the permit only after he/she understands all of the conditions and restrictions included on the permit and has field verified the blinding and/or separation.

For an employee or contractor to enter and work in a confined space under conditions "Immediately Dangerous to Life and Health," the person must be equipped with a positive pressure air line respirator with an emergency egress air supply and a safety harness attached to a life line (if the harness for the respirator does not already provide a ring for a life line attachment). All other necessary protective equipment must be worn.

FOR EXCAVATION Permits for excavations deeper than 4 feet that will be entered will be considered a

confined space and must be signed by a Valero or Contractor Competent Person after assuring that the following precautions have been taken:

The excavation is properly shored or sloped and barricaded. Proper access and egress is present. Any water accumulation has been removed and any continuous source has been

stopped or controlled.

All adjacent structures, buildings, walls, etc. have been braced or underpinned to prevent collapse.

Measures have been taken to remove materials such as rocks or soil from the edges of the excavation that could pose a falling hazard; all excavated materials are at least 2 feet from the edges of the excavation.

Appropriate gas tests have been taken. Procedures are in place whereby the company or Contractor Competent Person will

be contacted to re-inspect the excavation prior to entry after a rainstorm or other hazard increasing occurrence.

H. JOB/PERMIT COMPLETION At the end of the work shift or at the completion of the work (whichever occurs first),

a Maintenance/Contractor representative must return the permit to a person in the control room or point where the permit was issued - AND check whether the job is complete/ incomplete and whether the work area has been cleaned. Complete the signature, date and time sections.

If the work was performed as a result of a MOCA and a PSSR is required, the Owning Department Representative shall ensure the necessary tag(s) is placed and note this on the permit.

If the permit was a Confined Space Entry Permit, the Owning Department representative should promptly sign the bottom line of the permit indicating that the permit is canceled.

APPENDIX 2 - CONFINED SPACE PERMIT(Permits Issued to the Space or Vessel)

GENERAL INSTRUCTIONS ON COMPLETING PERMIT

Note: The following sections refer to the corresponding letter on the permit form.

A. WORK SCOPE

When filling out the Permit, identify the specific location of the confined space (i.e., refinery area, the specific equipment to be worked on, and describe the work to be done. A complete understanding of this information is important to the permit writer since it will often influence the type of gas testing to be done as well as the decision regarding whether periodic retest or continuous monitoring of the confined space atmosphere is needed.

Unless special provisions are made, a new permit is required at the beginning of each new work shift for the Owning Department. This should be reflected in the VALID UNTIL time frame box provided.

B. CHECKLIST

The considerations necessary for proper preparation of a confined space for entry are listed under three headings: vessel draining/purging, vessel isolation, and potential hazards.

Each item under these heading should be considered as to whether this action is necessary for preparation of the space. A check mark or "x" should appear in one of the three boxes next to each consideration.

If a consideration does not apply to a particular confined space, the box marked "N/A" (Not Applicable) should be marked.

If a confined space permit is being written for an excavated hole, most, if not all of the items under Vessel Draining/Purging and Vessel Isolation will be marked as N/A except for Access/Egress To/From Space Okay.

IT IS IMPERATIVE THAT FREE ACCESS TO and EGRESS FROM CONFINED SPACES BE MAINTAINED AT ALL TIMES WHEN ENTRY IS UNDERWAY.

Any potential hazards that may still be present in the space after preparation should be identified as a reference when preparing the confined space entry permit for a particular craft or Maintenance group.

BEFORE opening a vessel, owning area and Maintenance personnel should also consider whether pyrophoric iron sulfide or other deposits may be present. If pyrophoric materials may be present, personnel should follow the refinery pyrophoric hazard safety instructions as part of preparing the vessel for entry.

The Entry Supervisor and Qualified Owning Area Representative must field evaluate for the initial confined space entry and review the Confined Space Permit. The entry supervisor may delegate to a qualified representative, the field evaluation for non-hazardous confined spaces and renewed confined space entries. The field evaluation and permit review help assure that all appropriate precautions and restrictions are considered such as:

All lines entering the confined space are disconnected or blinded (any exception to this must be approved by the affected Department Manager).

The vessel must be cleaned as thoroughly as possible by draining, water washing, steaming, forced ventilation or other suitable means before any employee enters the confined space for additional cleaning or other work.

Irritating fumes, dust and mist, if present or may be generated, will warrant either additional cleaning, local exhaust ventilation or personal protective equipment.

C. PRECAUTIONS

When opening confined spaces for entry, danger signs will be posted at the entry portal indicating " Enter by Permit Only" (or equivalent wording). These signs must be posted as soon as the confined space is opened and will be removed when closed.

When entrance covers/manways are removed, the opening will be promptly guarded by a railing, temporary cover, or temporary barrier that will prevent an accidental fall through the opening and that will protect employees in the confined space from foreign objects entering the space.

Equipment that is always open to the atmosphere such as tower skirts, tanks with open top floating roofs, etc., and is identified as a confined space will be identified with the wording "Enter by Permit Only."

During confined space entry, communications between designated attendants and authorized entrants must be maintained throughout the entry. Methods of communication that may be used include visual, air horns, voice, radio, rapping or tapping codes, signaling tugs on a rope, etc., all of which may be used by the attendant to ascertain that work activities are continuing normally.

In the event the designated attendant recognizes the need to evacuate the confined space, an air horn (or any agreed to signal) will be sounded to notify the authorized entrants.

At least one trained designated attendant will remain outside the confined space and be in constant communication with the authorized entrant inside the confined space and have a means to summon rescue personnel and/or the Entry Supervisor. If the designated attendant must leave for any reason, he/she must be properly relieved or the entrant(s) must exit the confined space. The individual relieving the designated attendant must record their name on the field copy of the Confined Space Permit.

Forced ventilation (e.g., air horn, air mover, or blower) is recommended for all (except inert or IDLH) confined space entry, and when used, MUST BE GROUNDED.

Plant air valves used for ventilation equipment must be identified and the attendant must be aware of its location.

Any mixer or other such device inside a confined space must be mechanically or electrically disconnected. (See Lock, Tag, & Try, SHG #11)

Any radiation sources affixed to the space must have their shutters closed and locked. Tanks/vessels that have been in leaded gasoline service must be considered a lead hazard

and all precautions taken until cleaned and a lead in air analysis completed. As part of the initial entry permit for desalters, crude oil and cat feed tanks, a radiation

exposure measurement should be taken to assure significant levels of NORM (Naturally Occurring Radioactive Material) are not present. These measurements can be arranged by contacting the Environmental or Safety staff.

Artificial lighting should consist of equipment suitable for use in a confined space, (e.g., sealed flashlights, low voltage lighting with bulb protectors, ground fault circuit interrupters, etc.).

Prior to IDLH entry, a Safety Department representative or Rescue Team member must be notified.

D. ATMOSPHERIC TESTING

Gas testing devices will be bump-tested prior to each shift and results logged. The Owning Area Supervisor or qualified Owning Department representative will perform all

necessary atmospheric testing for confined space entry work. The results of the testing will be recorded on the permit along with the time the test was taken and the serial number(s) and type of the gas testing equipment used. The individual performing the testing will also sign the permit in the blank indicated "Tested By:"

The Serial Number and Calibration Date of the gas testing device(s) used will be recorded on the permit along with the brand or model number of the device(s).

Initial testing performed in preparation of the Confined Space Permit must be reviewed with a representative of the Safety Department who will also sign the permit.

respiratory protection required:

Oxygen 19.5% to 23.5%Combustible Gas (LEL) 0%Hydrogen Sulfide (H2S) < 10 ppmBenzene < 0.3 ppmCarbon Monoxide (CO) < 35 ppmSulfur Dioxide (SO2) < 5 ppmAmmonia (NH3) < 50 ppm

Entry into a confined space may be allowed at concentrations higher than the above if additional precautions such as respiratory protection is used. Questions concerning appropriate respirators for confined space entry should be referred to Safety.

Additional information on vapors or gases that may be present within a confined space may also be available on Material Safety Data Sheets for materials that have occupied the confined space.

In NO case will a confined space be permitted for entry with >10% LEL. The Owning Area Superintendent, Lead Process Tech or trained equivalent as the Entry

Supervisor must evaluate all confined space conditions as follows: Test the conditions in the permit space to determine if acceptable entry conditions exist

before entry is authorized. Determine if these initial conditions could change over time due to the type of work to be

done, a change in confined space conditions, etc. When testing for atmospheric hazards, oxygen will be tested first, then combustible gases

and vapors, and then toxic gases and vapors. (NOTE - The MSA Passport and similar instruments test all of these parameters simultaneously.)

When checking for combustible gases, the reading may not be accurate if there is insufficient oxygen. There must be at least 10% oxygen in the atmosphere for the LEL reading to be approximately correct.

Gas testing in the presence of excessive steam will cause the gas-testing instrument to provide inaccurate readings and may damage the meter.

If temperatures are in excess of 150o F, readings will not be accurate. Snapshot readings taken in ambient temperatures colder than 50o F. may not be accurate.

The meter should be checked with calibration gas to ensure that it responds properly prior to each shift's use. If the meter does not respond properly, it should be tagged and returned to the designated location within the refinery for recalibration and/or repairs.

Combustible liquids may be present which do not vaporize and register on the meter. These hazards must be visually identified.

Air movers will be shutdown so that natural draft only is present for the INITIAL test of a confined space. Subsequent tests (including subsequent re-issuance of Confined Space Permits) can be made with the air mover remaining on.

E. QUALIFIED OWNING DEPARTMENT REPRESENTATIVE

This individual has been trained and certified through the refinery permitting training program to issue permits and perform gas testing.

F. ENTRY SUPERVISOR

This individual is the qualified Valero representative, the Unit Superintendent or Lead Process Tech.

G. SAFETY REVIEW

Before initial entry the Safety representative will review the permit for completeness, to assure that all appropriate gas tests have been taken and documented, and to review the personal protective equipment specified to help assure that it is appropriate for the tasks indicated and the expected conditions within the space.

All confined space permits must be canceled. If the signature line is not signed by the qualified Owning Department representative or the Unit/Area Supervisor, then the permit is canceled as of the time indicated in the VALID UNTIL blank at the top of the page.

Once the permit has been completed or canceled, it should be returned to the refinery Safety Department for retention and subsequent review.


ATTACHMENT 1 - PERSONAL PROTECTIVE EQUIPMENT HAZARD ASSESSMENTMinimum requirements to enter Process Areas:∙ Hard hats

∙ Nomex/fr cotton

∙ Safety glasses with side shields unless goggles or other equipment is specified

∙ Safety shoes are recommended

Hearing protection should be worn as required based on noise level warnings in each operating area or tasks indicated.1 Refer to shade protection table2 Acids, caustics, amines and other process

chemicals3 Includes benzene, toluene, xylene, hexane,

ethylbenzene4 Where PEL may be exceeded

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Task With Exposure/Hazard Potential Other Foot Eye/Face Head Hand Clothing Respiratory HearingCutting on Wood (hand saw)Drilling on woodHand sanding on woodSpray painting in an enclosed area XHammering/nailing woodBuilding/dismantling scaffold XInsulating (where dust is generated) X4Building forms for concreteInstalling walkways XRemoving insulation with hydrocarbon leak X X3Use power tools XConcrete pouring X XConcrete demolition X X XWork on unprotected surface 6 ft or above XUse power sander in an enclosed area X XRiver work (drift removal) X

SHEET 1 MAINTENANCE – CARPENTERS



∙ Nomex/fr cotton



Hearing protection should be worn as required based on noise level warnings in each operating area or tasks indicated.1 Refer to shade protection table2 Acids, caustics, amines and other process chemicals3 Includes benzene, toluene, xylene, hexane, ethylbenzene4 Where PEL may be exceeded

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Enc

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Flas

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Task With Exposure/Hazard Potential Other Foot Eye/Face Head Hand Clothing Respiratory HearingInstrument calibration Installation/removal of instruments X2 X3 X2 X2Install/remove instruments in H2S service X3 X2 XBlow down taps X X2 X X3 X2 X4Blow down taps (H2S) X3 X2 XRun electrical conduit/tubing/wiring X3 X2Energize/de-energize equip. (13.8 kV or more) X XReplace fuses/breakers (hot) X XWire/unwire motors/switchesRepair air conditionersRepair chlorinated system X X4Troubleshoot & repair S/D and alarm circuitsSolderingOn-line analyzers – changing filter X4Work on unprotected surfaces 6 ft or above X

SHEET 2 MAINTENANCE – I&E



∙ Nomex/fr cotton



Hearing protection should be worn as required based on noise level warnings in each operating area or tasks indicated.1 Refer to shade protection table2 Acids, caustics, amines and other process

chemicals3 Includes benzene, toluene, xylene, hexane,

ethylbenzene4 Where PEL may be exceeded

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Pro

tect

ion

Rub

ber B

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Gog

gles

Face

Shi

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ety

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sses

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Mas

k/ G

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Slic

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Enc

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Task With Exposure/Hazard Potential Other Foot Eye/Face Head Hand Clothing Respiratory Hearing

Using air driven equipment/power tools X X2 X2 X4 XAlignment of pumps Cleaning of tools with solvent in vatCleaning of pumps/parts with solvent in vatGrinding/buffing on equipment X X XSandblasting cabinetDrilling on equipment XTorchburning X1 XRemoval of pumps in hydrocarbon ser-vice X X3

X4

Removal of pumps in chemical service X X X X3 X2 X2 X4Operating shop equipmentWelding X1 XLathe operationsWork on unprotected surfaces 6 ft or above XOperating overhead hoist/crane

SHEET 3 MILLWRIGHT/PUMP MECHANIC/MACHINIST



∙ Nomex/fr cotton


∙ Safety shoes are recommendedHearing protection should be worn as required based on noise level warnings in each operating area or tasks indicated.1 Refer to shade protection table2 Acids, caustics, amines and other process chemicals3 Includes benzene, toluene, xylene, hexane, ethylbenzene4 Where PEL may be exceeded5 Refer to SHG #57

Fall

Pro

tect

ion

Rub

ber B

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Gog

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Face

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Fire

Pro

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Enc

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late

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Life

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ket

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Task With Exposure/Hazard Potential Other Foot Eye/Face Head Hand Clothing Respiratory HearingRemove/install piping & equipment X X3 X2Working on drained neutralized equipment XGrinding/buffing X X XCutting/torchburning X1 XCold cutting X XWorking on contaminated hydrocarbon equip X X3 X4Working on contaminated chemical equip. X2 X2 X3 X2 X X4Hot tapping X XBlind installation/remove (*flareline) X X* X4Bolt busting X X3 X2 XRelieve valve removal & installation (flareline) X X* X*Operating Equipment X XRemove exchanger bundles XPaint removal X XWelding/arc gouging (*antimony or NORM present) X1 X X* XRigging XWork on unprotected surface 6 ft or above XInitial Line breaking/blind installation ( X5 X5 X XTransfer chemical to/from truck X X2 X X3 X2 X X4Reactor overhead blind (FCCU) XPoly reactor drilling and loading XRiver work (drift removal) XWWT work (over water w/o railings) X XCatalyst handling X

SHEET 4 MAINTENANCE – PIPEFITTER / BOILERMAKER / WELDER



∙ Nomex/fr cotton


∙ Safety shoes are recommendedHearing protection should be worn as required based on noise level warnings in each operating area or tasks indicated.1 Refer to shade protection table2 Acids, caustics, amines and other process chemicals3 Includes benzene, toluene, xylene, hexane, ethylbenzene4 Where PEL may be exceeded

Fall

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tect

ion

Rub

ber B

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Face

Shi

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Task With Exposure/Hazard Potential Other Foot Eye/Face Hand Clothing RespiratoryWork on unprotected surfaces 6 ft & higher XResponse to spills/no outside assistance X X X X3 X2 X X3 X4Lubricating pumps X X3 X2Opening & closing in line hydrocarbon valves XOpening & closing in line chemical valves XVenting, purging, draining & preparing equip. containing hydrocarbons X X X3 X3Venting, purging, draining & preparing equip. containing chemicals X X X X2 X2 XTaking hydrocarbon samples including LPG X X X3Taking HOT hydrocarbon samples X X X X3 X2Taking chemical samples X X X3 X2

Loading/unloading hydrocarbon from trucks (connecting & disconnecting) X X X3 X2 XLoading/unloading hydrocarbon from rail cars (connecting & disconnecting) X

Loading/unloading chemical to and/or from trucks X X2 X X3 X2 X X4Minor packing adjustment X X3 X2Unplugging bleeders with or without a bleeder unplugging device X X X X3 X2 X2Lighting burners XSwitching chlorine cylinders X XTank sampling and gauging XTank sampling and gauging with H2S present X XHandling catalyst X XHandling ammonia X X X X X4Draining tank or vessel water legs X3 X2Using soaps or solvents X X XHandling soda ash and phosphate X X2 XAdjusting liquid chemical rates (with open draw down tubes) X X3 X2Testing water and ATS samples XMaintenance on Clarifier XOperating sludge press x

SHEET 5 OPERATIONS & PUMPING PERSONNEL (all operating areas)



∙ Nomex/fr cotton


∙ Safety shoes are recommendedHearing protection should be worn as required based on noise level warnings in each operating area or tasks indicated.1 Refer to shade protection table2 Acids, caustics, amines and other process chemicals3 Includes benzene, toluene, xylene, hexane, ethylbenzene4 Where PEL may be exceeded

Fall

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Task With Exposure/Hazard Potential Other Foot Eye/Face Hand Clothing RespiratoryFormic Acid Sampling X X X X X X Hydrogen Peroxide Sampling X X X X Diesel End Product Sampling X XMethanol Sampling X X Line Breaking (From front end feed to V-19) X X X X X X XLine Breaking (From V-19 to Rundown) X XHandling Chemicals X X X X X X X XEmergency Response X X X XLoading Dryers X

SHEET 6 UNIPURE OPERATIONS PERSONNEL

VALERO – KROTZ SPRINGS SHG #3 of 43

Revised: 5/25/0Revised 10/6/03

ATTACHMENT 2 - SAFE WORK PERMIT

A. WORK SCOPE (To be completed by the Owning Department) Check relevant box(es) to indicate type(s) of work included to complete task. Cold Work Hot Work Vehicle Entry Excavation Confined Space Entry (Refer to Confined Space Permit #______________________________ PSSR Required (MOCA # _______________ Not Available)Specific Location: _______________________________________________________________Equipment To Be Worked On:______________________________________________________Work To Be Performed: ________________________________________________________________________________________________________________________________________Craft and Company: Est. # in Crew: Lock box required to protect this job: ____________ (enter number) List vehicle(s) entering and route of entry:

PERMIT TIMINGISSUED:

Date: Time: Permit Update

Time(s): (Initial by Updates)

VALID UNTIL:Date: Time:

Maint. Request/Work Order Number:

B. POTENTIAL HAZARDS (To be completed by the Owning Department) Flammable Pyrophoric Harmful to Breathe Harmful by Skin Contact Potential Health Hazards Reviewed Process Hazard Overview Location

C. PERSONAL PROTECTIVE EQUIPMENT (To be completed by the Owning Department with the Maintenance or Contractor Representative) (Check all additional equipment that is required.) Bunker Gear Hearing Protection Dust Respirator Chemical Slicker Suit (Pants&Jacket) Goggles H2S Monitor Chemical Resistant Gloves Faceshield Safety Harness & Life Line Rubber Boots Organic Vapor Respirator Tripod Emergency Escape Unit Flash Hood Supplied Air Hood Personal Fall Protection Equipment Life Vest Supplied Air Respirator (Breathing) Other: ______________________________________________________________________________________________

D. CHECK LIST (To be completed by the Owning Department) (Check what has been completed.) Isolation Point Tags in place Joint Job Site Visit Electrical Isolation Completed/Field Switch Tested In-Service Welding Conditions Met Equipment Depressured/Drained Equipment Isolated and locked out Hot Tap/Stopple Conditions Met Drains/Vent Opened & Cleared Blinds In Place Line Flow Equipment Water/Steam Flushed Electrical Equipment Still Live U.T. Confirmed Equipment Inert Gas Purged Equipment Still Live Line Identified Written Formal JSA Completed PSSR Tags in place Atmosphere Tested Equipment IdentifiedOther: ________________________________________________________________________________________________

E. PRECAUTIONS (To be completed by the Owning Department with Maintenance/Contractor input; precautions to be taken by Maintenance/Contractor) Check what must be completed PRIOR to commencing work. Cover Sewers Scaffolding Inspection Complete Fire Watch (w/ Red Vest) Continuous Atmospheric Air Mover (Grounded) Fire Extinguisher at Work Site Charged Hose/Area Wet (if applicable) Monitoring Barricade/Signs Fire Resistant Blanket/Enclosure Covered Cable Trays/Raceways Communication Type(s)_________________ Other ___________________

Designated Fire Watch:_____________________________________________ Class A Combustibles (paper, wood, grass, etc.) Fire Watch remains 30 min after hot workDesignated Hole Watch: ____________________________________________

Designated Bottle Watch:

Print: Signature: Signature: (Permit Verification Performed by) (Verification Received by:) (Maintenance/Contractor Representative)

I VERIFY THAT THE ABOVE CHECK LIST “D” HAS BEEN COMPLETED, ALL OTHER CONDITIONS (“B”, “C”, “E”) ARE UNDERSTOOD AND WHEN MET, THE AREA IS SAFE FOR WORK TO COMMENCE.

SIGNATURE: Date: Time: (Permit Issued By)I HAVE REVIEWED THE CONDITIONS OF THIS PERMIT AND APPROVE WORK TO COMMENCE WHEN CONDITIONS ARE MET.

F. ATMOSPHERIC TESTING (To be performed by the Qualified Operations Representative or Operations Supervisor)For Hot Work Permit Gas Testing Equipment:

Time: ____________________ Time: __________________ Time: __________________Calibration Date: ______________ Oxygen: ________________% Oxygen: _______________% Oxygen: _______________%

Combustible Gas: _________%Toxics: __________________

Combustible Gas: _______%Toxics: _________________

Combustible Gas: ________%Toxics: _________________

Serial Number(s): _____________

Tested By:_______________ Tested By:_______________ Tested By:_______________ Type of Equipment:____________G. ADDITIONAL SIGNATURES (As Required)

FOR CONFINED SPACE ENTRY FOR EXCAVATION (Deeper Than 4 Feet)Qualified Maintenance/Contractor Representative Valero Competent Person

Entry Supervisor Contractor Competent Person

H. JOB/PERMIT COMPLETIONCOMPLETED BY MAINTENANCE: Work is: Complete Incomplete The area has been cleaned up: Yes No

Signature:Date: _______________________________________________________________________ Time: ____________________(Maintenance/Contractor Representative)

Signature:Date: _______________________________________________________________________ Time: ____________________(Owning Department Representative)

Upon completion or cancellation of this permit return this document to the Owning Department.

PERMIT TIMING/BACKGROUND

ISSUED:

Date: Time: VALID UNTIL:

Date: Time: Maint Request/Work Order Number:



VALERO PERMIT NO. Krotz Springs Refinery CONFINED SPACE PERMIT

(To be completed by the Owning Department)A. WORK SCOPE Specific Location:____________________________________________________________

Equipment To Be Worked On:__________________________________________________

Work To Be Performed:_______________________________________________________

____________________________________________________________________________ Initial Permit B. CHECK LIST (Check what has been completed)

Vessel Draining/Purging: Vessel Isolation: Potential Hazards:Equipment Depressured/Drained

Yes No N/A Electrical Isolation Completed/Field Tested

Yes No N/A Flammable Yes No N/A

Drains/Vents Opened & Cleared

Yes No N/A Equipment Locked Out Yes No N/A Pyrophoric Yes No N/A

Equipment Water/Steam Flushed

Yes No N/A Blinds In Place Yes No N/A Harmful to Breathe

Yes No N/A

Equipment Inert Gas Purged

Yes No N/A Access/Egress To/From Space Okay

Yes No N/A Harmful by Skin Contact

Yes No N/A

Excavation Yes No N/A

Other:______________________________________________________________________C. PRECAUTIONS Check what must be completed PRIOR to commencing work and fill in the required information: Barricade/Confined Space Entry Signs Air Mover (Grounded & Air Valve Identified) Communication Type(s):____________________ NORM Survey Competent Person Inspection Excavation IDLH Conditions (Rescue Team Notified) Designated Attendant Identified on Entry Log Other:

D. ATMOSPHERIC TESTING (To be performed by the Qualified Operations Valero Representative)Gas Testing Equipment

Information: TEST PARAMETERS:Confined Space Permit Testing(Enter Actual Readings or Data)

Time: 1st 2nd 3rd

MULTIGAS METER Oxygen: 19.5 to 23.5%* % % %

Serial Number:___________ Combustible Gas 0 %* %LEL %LEL %LELCalibration Date: ________ Hydrogen Sulfide: <10 PPM* PPM PPM PPM

Benzene: <0.5 PPM* PPM PPM PPM

SNAP SHOT Carbon Monoxide: <35 PPM* PPM PPM PPM

Serial Number:____________ Sulfur Dioxide: <5 PPM* PPM PPM PPMAmmonia: <50 PPM* PPM PPM PPM

DRAGER Other:Serial Number:____________ Tested By:* Levels Shown Are Defined Acceptable Entry Levels Without Respiratory ProtectionE. QUALIFIED OPERATIONS REPRESENTATIVEI affirm that the precautions stated on this permit have been met.

Signature: ___________________________________________________________________________Date: Time:____________

F. ENTRY SUPERVISORI agree that the precautions stated on this permit are appropriate and have been identified and/or met.

Signature____________________________________________________________________________Date:_____________________Time:____________

G. SAFETY REVIEW & EXCAVATION COMPETENT PERSON SIGNATURESI have reviewed the above gas testing parameters, hazards and precautions and agree that they are appropriate.

Signature: Date:

I have reviewed the required parameters for personnel entry into this excavation and agree that they are appropriate.

Signature: Date: H. PERMIT CANCELLATIONThis permit is canceled. (If not signed below, the permit expires or is canceled as of the "Valid Until' date and time shown at the top of this permit.)

Signature: Date: Time: (Upon completion or cancellation of this permit, return this document to the Safety Department.)



CONFINED SPACE ENTRY LOGDesignated Attendant: Confined Space Permit # __________

Relief Attendant(s): (1) ________________________ (2)________________________ (3) _________________

Entrant's Name Company In Out In Out In Out In Out

In Out In Out

1)

2)

3)

4)

5)

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Comments Regarding Confined Space or Entrants:



______________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________

shg03

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