confined space entry safety program

Project Documentation Document SAF-0004

Revision A

Advanced Technology Solar Telescope 950 N. Cherry Avenue Tucson, AZ 85719 Phone 520-318-8102 [email protected] http://atst.nso.edu Fax 520-318-8500

Confined Space Entry Safety Program

Steve Shimko Safety

September 2013


SAF-0004, Revision A Page 1 of 26

REVISION SUMMARY:

1. Date: 10 September 2013 Revision: A Changes: Initial release



Table of Contents

1. PURPOSE ............................................................................................................. 3

2. DEFINITIONS ........................................................................................................ 4 3. ATST MANAGEMENT AUTHORITY AND RESPONSIBILITY .............................. 5 4. CONTRACTOR RESPONSIBILITY ....................................................................... 6 5. ALL EMPLOYEES ................................................................................................. 7 6. CLASSIFYING CONFINED SPACES.................................................................... 8

7. POSTING HAZARD WARNING SIGNS ................................................................ 9 8. PERMIT-REQUIRED CONFINED SPACES ........................................................ 10 8.1 ENTRY RESPONSIBILITIES ...................................................................................... 11 8.2 EMERGENCY RESCUE ............................................................................................ 11 8.3 CONTRACTORS ..................................................................................................... 12

8.4 TERMINATION OF WORK ........................................................................................ 12

9. TRAINING ........................................................................................................... 13 10. RECORDKEEPING ............................................................................................. 15

11. IDENTIFICATION OF ATST CONFINED SPACES ............................................. 16 12. OXYGEN DEFICIENCY HAZARD (ODH) AND OTHER ALARMS: ..................... 17 13. GLOSSARY ......................................................................................................... 18



1. PURPOSE

The Advanced Technology Solar Telescope (ATST) Confined Space Safety Program is intended to

comply with OSHA Regulation 29 CFR 1910.146, “Permit Required Confined Spaces” and Hawaii

Administrative Rules (HAR) 12-6.2-2 General Environmental Standards.

All confined spaces located at the ATST summit shall be identified, evaluated, classified, and access shall

be denied until the location has been cleared for entry in accordance with this policy.



2. DEFINITIONS

Confined Space means a space that:

a) Is large enough and so configured that an employee can bodily enter and perform assigned work;

and

b) Has limited or restricted means for entry or exit (for example, tanks, vessels, silos, storage bins,

hoppers, vaults, and pits are spaces that may have limited means of entry.); and

c) Is not designed for continuous employee occupancy.

Permit-required Confined Space (permit space) means a confined space that has one or more of the

following characteristics:

a) Contains or has a potential to contain a hazardous atmosphere;

b) Contains a material that has the potential for engulfing an entrant;

c) Has an internal configuration such that an entrant could be trapped or asphyxiated by inwardly

converging walls or by a floor which slopes downward and tapers to a smaller cross-section; or

d) Contains any other recognized serious safety or health hazard.

Non-permit Required Confined Space is a confined space that does not contain or, with respect to

atmospheric hazards, have the potential to contain any hazard capable of causing death or serious physical

harm.

A space classified by as a permit-required confined space may be reclassified as a non-permit confined

space under the following procedures:

If the permit space poses no actual or potential atmospheric hazards and if all hazards within the space are

eliminated without entry into the space, the permit space may be reclassified as a non-permit confined

space for as long as the non-atmospheric hazards remain eliminated.

Alternate Procedure Confined Space is a permitted confined space where the only hazard posed by the

permit space is an actual or potential hazardous atmosphere. A permit is not required if:

The employer can demonstrate that the only hazard posed by the permit space is an actual or potential

hazardous atmosphere and continuous forced air ventilation alone is sufficient to maintain that permit

space safe for entry; and

The employer develops monitoring and inspection data that supports the demonstrations required by the

above paragraph.

Confined Space Examples and Hazards - Confined spaces may include tanks, pits, shafts, vessels,

vaults, trenches, etc. Confined spaces can present hazards which may be life threatening. Personnel can be

injured or killed in confined spaces due to failure to recognize hazards related to the space. Hazardous

atmospheres can present invisible dangers including oxygen deficiencies, toxic gases, and flammable

vapors. Hazards may develop after entry; hence, constant vigilance is imperative to safe work in a

confined space. An individual may become incapacitated extremely quickly by contaminated or oxygen-

deficient atmospheres.



3. ATST MANAGEMENT AUTHORITY AND RESPONSIBILITY

Identify actual and potential confined spaces.

Complete confined space classifications for all confined spaces.

Remove or control confined space hazards where possible.

Determine if a permit-required confined space can be reclassified as a non-permit required

confined space or can be entered using an Alternate Procedure.

Provide for training of employees on safe entry and safe work practice within confined spaces.

For permit required entries: issue entry permits, assign an attendant, equip the Entrants and

Attendants, have an emergency rescue plan and trained rescuers on hand.

Coordinate with department supervisors and contractor’s entry supervisor to ensure proper

procedures are followed prior to entry, during entry operations, and after entry into permit-

required confined spaces.

Where possible, engineering controls will be implemented to eliminate confined space hazards. This may

include additional ventilation, means of egress, or designed restriction to access. Where engineering

controls are not possible, controlled access to the confined space is mandatory.

The ATST Safety, Health, and Environmental Affairs (SHEA) Officer or designee will be responsible for

the management oversight of this program and policies. The Summit Lead or designee is responsible for

the implementation of this Program and policies at the summit.



4. CONTRACTOR RESPONSIBILITY

Contractors performing work in the identified non-permit required, alternate procedure and permit-

required confined spaces will:

Utilize and review ATST confined space hazards and entry operations information and

requirements prior to commencement of work (pre-work meeting).

Provide for the orientation and training of contractor personnel in the ATST confined space

program and procedures.



5. ALL EMPLOYEES

All ATST and Contractor Employees are responsible for complying with ATST confined space entry

program requirements.



6. CLASSIFYING CONFINED SPACES

To ensure that confined spaces are properly evaluated and designated as permit-required confined spaces,

alternate procedure or non-permit confined spaces the Summit Lead and/or the ATST SHEA Officer or

designee shall conduct a documented evaluation of the area to determine the classification. The Confined

Space Evaluation Form (app. 1) will be utilized for this. Known permitted spaces such as the septic tank,

water tanks and diesel tank will not be entered to evaluate.

Atmospheric monitoring to determine if the space contains or has the potential to contain a hazardous

atmosphere according will be through detailed knowledge of the space or to the following procedure.

Atmospheric monitoring of confined spaces shall use calibrated direct-reading device that

measures oxygen, combustible gases and vapors, and toxic gases and vapors respectively;

Monitoring in vertical confined spaces shall be done every two feet within the confined space

beginning at the top of the confined space and gradually moving down using a sampling pump

and attached wand which pulls air from the confined space into the monitoring device;

Monitoring in horizontal confined spaces shall be done every two feet within the confined space

beginning at the entrance of the confined space and gradually moving along the ceiling towards

the opposite end and then gradually moving along the floor and back to the entrance using a

sampling pump and attached wand which pulls air from the confined space into the monitoring

device;

If an initial entry of a permit required space is necessary to obtain the required monitoring and

inspection data, the entry shall require a Confined Space Entry Permit;

Atmospheric monitoring results shall be documented on the confined space entry permit or

atmospheric monitoring sheet; and

Confined space entry permits shall be maintained by the Summit Lead and the ATST SHEA

Officer.

Upon completion of the evaluation, the ATST SHEA shall designate each confined space as a permit-

required confined space, alternate procedure or non-permit required confined space and thus documents

the status of each space in this program.

Note: Activities such as chemical processes or environmental conditions can result in a change in the

atmosphere of a confined space. If these activities are to be performed within a confined space designated

as a non-permit confined space, the Summit Lead or SHEA Officer shall be contacted for a re-evaluation

of the space.



7. POSTING HAZARD WARNING SIGNS

Permit-Required confined spaces will be identified with warning signage reading:

When the posting of warning signs is not feasible, permit-required confined spaces shall be identified by

other equally effective means (e. g., training).



8. PERMIT-REQUIRED CONFINED SPACES

In general, ATST employees do not enter permit required confined spaces. All regular entries are required

to be non-permit, alternate procedure or re-classify the space to non-permit. In the event that a permit

required entry is needed the following procedures are required.

Authorization to enter permit-entry confined spaces will be provided through the Summit Lead and SHEA

Officer.

The Summit Lead and SHEA must be contacted at least one (1) month before the anticipated entry into a

permit-required confined space so that a safety evaluation of the space can be performed and a rescue

plan and rescuer training be performed.

If the permit-required confined space is determined to be safe for entry, then a permit will be issued. If a

permit is denied, the Summit Lead and SHEA Officer will identify the measures to be taken in order for a

permit to be awarded. Entry into the permit-required confined space shall be prohibited until the space is

deemed safe for entry by the Summit Lead and SHEA Officer. The Summit Lead and SHEA Officer may

require ventilation for alternate entry procedures or reclassification by removal of hazards.

If an entry permit is awarded, the Entry Supervisor will complete and post the entry permit at the entry

portal of the permit-required confined space. A permit must be completed and signed indicating date,

time, Entry Supervisor, Entrant, Attendant, and the confined space location (see app.4). All engineering

controls, i.e., ventilation ducts, fans, etc., must be checked by the Entry Supervisor, the Entrant, and/or the

Attendant for proper operation.

Safe levels of atmospheric contaminants and oxygen levels must be monitored before entry and for the

duration of the task. The appropriate meters will continuously measure oxygen (safe level 19.5 - 23.5%),

flammable gas and vapors (safe below 10% Lower Explosion Limit (LEL)), and toxic gases. Visual and

audio alarms will indicate an unsafe condition exists and precautionary steps must be taken; if alarms

activate, evacuate immediately.

Upon completion of confined space work, the permit must be returned to the Summit Lead and SHEA

Officer. OSHA requires confined space entry permits to be retained for one year for review of the entry

procedures.

Only the assigned tasks or activities identified on the permit shall be conducted within the permit-required

space and the duration of the permit may not exceed the time required to complete those assigned tasks or

activities. If the assigned work goes beyond the planned time period or work tasks/activities other than

those identified on the permit become necessary, the Entrant shall leave the space and inform the Entry

Supervisor or Summit Lead of the expiration of the permit or of the newly proposed work tasks or

activities. The Entry Supervisor will contact the Summit Lead and SHEA Officer immediately for a re-

evaluation of the space in regard to the proposed work task or activity.

The Entry Supervisor will supervise the entry team's implementation of the means, procedures, and

practices necessary for safe entry operations which include, but are not limited to, the following:

Isolating the permit space by blanking or blinding; misaligning or removing sections of lines,

pipes, or ducts; using a double block and bleed system; using lockout or tagout procedures; or

blocking or disconnecting all mechanical linkages;

Purging, flushing, or ventilating the permit-required confined space as necessary to eliminate or

control atmospheric hazards; and



Providing pedestrian, vehicle, or other barriers (i.e., barricades or tape) to protect entrants from

external hazards whenever a permit-required space is entered.

If necessary as determined by pre-entry evaluation of a permit-required space, employees will be

appropriately equipped with the following:

Mechanical ventilation;

Safe means of communications;

Personal Protective Equipment;

Lighting;

Barriers;

Equipment (e.g., ladder) for safe entry/exit by entrants; and

External retrieval systems.

Retrieval equipment shall be provided unless it is determined that the equipment would increase the

overall risk of injury upon entry or would not contribute to the possible rescue of an entrant (e.g., internal

configurations of the permit-required space). The Entry Supervisor for the permit-required confined space

work shall ensure the following retrieval systems or methods are in place before entry:

A chest or full body harness, with a retrieval line attached to the center of the entrant's back, near

shoulder level or above the head; and

The other end of the retrieval line shall be attached to a mechanical device or fixed point outside

the permit space. Note: A mechanical device must be available to retrieve personnel from a

vertical permit- required confined space which is five feet or more in depth.

8.1 ENTRY RESPONSIBILITIES

Entry Supervisor: The Entry Supervisor must ensure that proper precautions are in effect, the space is

ventilated (if required), entrant and attendant are instructed on procedures in confined space, and all

equipment is available and operational. In an emergency response, the Summit Lead will direct confined

space rescue operations.

Entrant: The Entrant must be trained on confined space work procedures, file entry permit when

necessary, and maintain proper protective equipment. The Entrant must monitor confined space

atmosphere before entry and may not enter the confined space unless all indications are within allowable

standards. Moreover, the atmosphere must be continuously monitored during occupancy, and again before

every entry. The entrant must take an Emergency Escape Breathing pack into the confined space and have

the mask out and ready for use.

Attendant: The Attendant must remain outside the confined space, maintain SCBA, be in visual or

audible contact at all times, and remains until relieved by another Attendant. In the event the Entrant

becomes incapacitated in any manner, the Attendant will inform the Rescue team and wait for assistance.

8.2 EMERGENCY RESCUE

No one should enter a permit confined space without properly trained rescue team on site. Rescuers will:

Notify the Summit Lead

Don rescue gear as require per rescue plan

Check oxygen level in the confined space

Bring Emergency Escape Breathing Apparatus

Enter only when other trained Attendants are on hand

Remove injured/incapacitated Entrant

Administer first aid away from the confined space



The Summit Lead will initiate the medical emergency phase of the summit Emergency Response Plan if

additional emergency services are required.

The reasons for becoming incapacitated in a confined space are extremely varied. Rescuers should

investigate the space before attempting rescue, being aware of flammable vapors and shutting down all

ignition sources: electrical, hot work, heaters. Oxygen deficiency can occur by displacement from other

gases, and cardiopulmonary shutdown can be instant. SCBA is to be worn during all rescue attempts.

8.3 CONTRACTORS

Where a Contractor is utilized to perform work within a permit-required confined space at the Keck

Observatory, the Contractor supervisor shall contact the Summit Lead and SHEA a minimum of 1 month

prior to beginning the work.

The Summit Lead and the Contractor supervisor shall coordinate entry operations with the Entry

Supervisor for the outside contractor when employees from the Keck Observatory and the Contractor will

be working together in or near permit-required confined space(s).

The Summit Lead or designee shall be responsible for the following:

Informing the Contractor that the area in question is a permit-required confined space;

Reviewing the ATST permit-required confined space program to be followed by the Contractor;

Informing the Contractor of the hazards identified within the space and any past experience with

the space;

Informing the Contractor of any precautions or procedures that have been implemented for the

protection of employees in the permit-required confined space where contractor personnel will be

working; and

Debriefing the Contractor at the end of the work to identify hazards discovered or created in the

permit-required confined space during operations.

8.4 TERMINATION OF WORK

The Entry Supervisor will contact the Summit Lead or designee to terminate entry and cancel the permit

when the work covered by the entry permit has been completed and/or a condition that is not allowed

under the entry permit arises in or near the space.



9. TRAINING

ATST shall be responsible for providing appropriate training. This training is provided to each employee

serving as authorized Entrant, Attendant, and Entry Supervisor during any type of confined space

operation. The purpose of this training is to equip the individual with an understanding, knowledge and

the skills necessary for the safe entry into a permit-required confined space.

Curriculum -

All employees serving as authorized Entrants, Attendants, or Entry Supervisors shall be trained to

understand the following:

1) What is a confined space, alternate procedure confined space, non-permit confined space and

permit-required confined space;

2) When a permit-required confined space may be re-classified and procedures for declassification;

3) When a permit-required confined space may entered using alternate procedure;

4) How to obtain and/or cancel a permit in order to enter a permit- required confined space;

5) The hazards that may be faced during entry including information on the mode of exposure, signs

or symptoms, and consequences of exposure;

6) Equipment and methodologies used to determine if safe entry into a permit-required confined

space is possible;

7) How to recognize warning signs or symptoms of exposure to a dangerous situation;

8) The importance of communication between the Entrant and Attendant including methods used to

continuously maintain an accurate count of authorized entrants within the permit-required

confined space, the methods of communication to determine Entrant status and when to alert the

Attendant;

9) How to properly use personal protective equipment and any other applicable equipment

including: ventilating equipment, communication equipment, lighting equipment, barriers and

shields, ingress/egress equipment, rescue and emergency equipment used for non-entry and any

other equipment necessary for safe entry into and rescue from permit spaces;

10) How and when to evacuate a permit-required confined space. All Entrants should exit from a

permit required confined space as quickly as possible whenever:

An order to evacuate is given by the Attendant or the Entry Supervisor;

11) The Entrant recognizes any warning signs or symptoms of exposure to a dangerous situation; and

12) The Entrant detects a prohibited condition.

13) Methods used to monitor the activities inside and outside the space to determine if it is safe for

entrants to remain in the space;

14) Methods used to summon rescue and other emergency services; and

15) Methods used to handle unauthorized persons who approach or attempt to enter a permit-required

confined space. These methods include the following:

Warn the unauthorized persons that they must stay away from the permit space;

Advise the unauthorized persons that they must exit immediately if they have entered the

permit space; and

Inform the authorized Entrants and the Entry Supervisor that unauthorized persons have

entered the permit space by contacting the Summit Lead or designee.

Frequency -

Training shall be provided as follows:

1) Before an employee is assigned to a duty involving entry into a confined space;

2) Before there is a change in assigned duties (e.g., Attendant becomes an Entrant);



3) Whenever there is a change in confined space operations that presents a hazard that an employee

has not been previously trained on; or

4) Whenever there are deviations from the entry procedures or inadequacies in the employee's

knowledge or use of entry procedures as identified by the Entry Supervisor or other competent

persons during entry procedures.



10. RECORDKEEPING

Training programs shall establish employee proficiency in the duties required of authorized Entrants,

Attendants, and Entry Supervisors. Training programs and records shall be maintained by ATST for three

(3) years subsequent to the initial training period and will include the following:

1) Dates of the training sessions;

2) Contents or summary of the training sessions;

3) Names and qualifications of persons conducting the training;

4) Names and job titles of all persons attending the training sessions; and

5) Results of the learning measurement exercise.



11. IDENTIFICATION OF ATST CONFINED SPACES

(also see Appendix 2 and 3)

Non-permit Required Confined Spaces:

Utility Tunnel

Alternate Procedure Confined Spaces:

None

Permit-Required Confined Spaces:

None



12. OXYGEN DEFICIENCY HAZARD (ODH) AND OTHER ALARMS:

Multi-Gas Analyzer alarms limits

Oxygen safe limits 19.5% - 23.5%, alarm sounds outside these levels

Carbon monoxide alarm sounds when CO levels > 200 ppm for acute toxic level and 35 ppm for

time weighed average (TWA)

Hydrogen sulfide alarm sounds when >10 ppm for acute exposure and 10 ppm TWA

Organic vapors alarm sounds when > 10% lower flammable limit



13. GLOSSARY

Attendant: An individual stationed outside one or more permit-required confined spaces that monitors

the authorized entrants and performs assigned attendant duties.

Authorized Entrant: An employee who is authorized by the employer to enter a permit-required

confined space.

Blanking (Blinding): The absolute closure of a pipe, line, or duct by the fastening of a solid plate that

completely covers the bore and is capable of withstanding the maximum pressure of the contents within

the pipe, line, or duct with no leakage beyond the plate.

Emergency: Any occurrence or event internal or external to the permit-required confined space that

could endanger entrants.

Entry: The action by which a person passes through an opening into a permit-required 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 Permit (Permit): The written or printed document that is provided by the employer to allow and

control entry into a permit-required confined space.

Entry Supervisor: Designated employee who shall be responsible for the following:

determining if acceptable entry conditions are present at a permit-required confined space where

entry is planned;

authorizing entry;

overseeing entry operations;

and terminating entry as required.

Grinding: To wear down, polish, or sharpen by friction.

Hazardous Atmosphere: An atmosphere that may expose employees to the risk of death, incapacitation,

impairment or acute illness from one or more of the following causes:

Flammable gas, vapor, or mist in excess of ten (10) percent of its lower flammable limit;

Airborne combustible dust at a concentration that meets or exceeds its lower flammable limit

(dust obscures vision at a distance of five feet or less);

Atmospheric oxygen concentration below 19.5 percent or above 23.5 percent;

Atmospheric concentration of any substance for which a dose or a permissible exposure limit is

published and which could result in employee exposure in excess of its dose or permissible

exposure limit; and/or

Any other atmospheric condition that is immediately dangerous to life or health.

Prohibited Condition: Any condition in a permit-required confined space that is not allowed by the

permit during the period when entry is authorized.

Retrieval System: The equipment used for non-entry rescue of persons from permit-required confined

spaces.

Combustible gas: any gas that will ignite or explode, measured in % lower explosion level (LEL).

Toxic gas: gas defined as harmful to breathe, measured in ppm.



TWA: time weighed average is the maximum safe level set for a worker to be exposed during the course

of an 8-hour day.



Appendix 1 - Sample Confined Space Evaluation form:

CONFINED SPACE EVALUATION FORM

Date Area/Building Description Rep (POC)

Equipment name Location Floor Room Misc.

CONFINED SPACE Yes No

1. Size Is the space large enough or configured to permit bodily entry?

2. Access/Egress Are there limited or restricted means of access or egress?

3. Occupancy The space is not designed for continuous human occupancy?

PERMIT REQUIRED CONFINED SPACE Yes No

4. Hazards

4.a Is there a potential or actual hazardous atmosphere?

4.b Is there a potential for engulfment or entrapment? If yes, explain

4.c Is the internal configuration such that an entrant may be Trapped or asphyxiated?

4.d Does the space contain any other safety or health hazard (e.g., mechanical, chemical, thermal, electrical, etc.)? If yes, identify

5. If the only hazard checked for hazards was 4a, would continuous forced air ventilation be sufficient to maintain the confined space safe for entry?

6. Is objective monitoring data available to support question 5? If yes, explain

Based on the answers to the above questions, define the type of confined space

Type of space determined

1. _____ Non-regulated space (if no checked for one or more of questions 1-3)

2. _____ Non-permit confined space (if yes checked for questions 1-3 only)

3. _____ Alternate procedure (if yes checked for question 5)

4. _____ Permit required (if yes checked for questions 1-4 only)

5. _____ Do Not Enter

Signed Printed name Date



Appendix 2 – Confined Space Locations ATST

UTILITY TUNNEL



Appendix 3 – Confined Space Locations ATST

UTILITY TUNNEL



Appendix 4 Confined Space Entry Permit Sample

CONFINED SPACE ENTRY PERMIT Permit Number Date

Location & Description of Confined Space:

Purpose of Entry:

Scheduled Start Day / Date / Time Scheduled Finish Day / Date / Time

Entry Supervisor:

Entrants:

Rescue: Attendants:

Pre-Entry Authorization: Summit Lead and Shea Officer

Sign and Date

Check those items below which are applicable to your confined space permit

TYPES OF HAZARDS

Oxygen-Deficient Atmosphere Engulfment Energized Electrical Equipment Oxygen-Enriched Atmosphere Toxic Atmosphere Entrapment Welding/Cutting Flammable Atmosphere Hazardous Chemical

Note: If welding/cutting operations are to be performed, attach Hot Work Permit form to entry form.

SAFETY PRECAUTIONS

Self-Contained Breathing Apparatus Protective Gloves Ground Fault Interrupter Lockout/Tagout Lifelines Signs Posted Air-Line Respirator Respirators Clearances Secured Fire-Retardant Clothing Fire Extinguishers Lighting Ventilation Barricade Job Area OTHER Remarks

ENVIRONMENTAL CONDITIONS

TESTS TO BE TAKEN DATE / TIME

Oxygen: % a/p

Lower Explosive Limit: % a/p

Toxic Atmosphere:

Instruments Used:

RE-TESTING DATE / TIME

Oxygen: % a/p

Lower Explosive Limit: % a/p

Toxic Atmosphere:

Instruments Used:

Employee Conducting Safety Checks SIGNATURE:

Remark on the overall condition of the confined space

ENTRY AUTHORIZATION

All actions and/or conditions for safe entry have been performed.

Person in Charge of Entry PLEASE PRINT

ENTRY CANCELLATION

Entry has been completed and all entrants have exited permit space.

Person in Chargeof Entry PLEASE PRINT



Appendix 5 - Atmospheric Monitoring Data sheet example:

Atmospheric Monitoring Data Confined Space Entry

Reference Confined Space Entry Procedure (if applicable):

Confined Space Description Dept. Date

Purpose of Entry

Entry Supervisor (print & sign)

Cert. Exp. Date

Entrant (print) Cert. Exp. Date

Entrant (print) Cert. Exp. Date

Meter Model S/N Calibration Due

CONTAMINANT EXPOSURE LIMIT INITIAL MONITORING FINAL MONITORING

OXYGEN 19.5-23.5%

%LEL 10%

CARBON MONOXIDE 35 PPM

HYDROGEN SULFIDE 10 PPM

OTHER (Specify)

Send copy of monitoring information to Site SHEA Office



Appendix 6 - Confined Space Alternate Entry Procedure example:

Confined Space Alternate Entry Procedure

LOCATION / TASK XXXXXXXXXXX

Confined Space Description: xxxxxxxx

Description of Work: Routine Entry

Written/Revised by: xxxxxxxxxxxx

Approved by: Area Lead

(name and signature) Manager

SHEA

Reference Procedures

1. ATST Safety Program xx, Confined Space Entry

Scope and Introduction

Maintenance personnel routinely enter the xxxxxxxxxxxx to perform maintenance. Entry into these areas is considered a confined space entry and the requirements of ATST Safety Program SAF-0004, Confined Space Entry and the following must be adhered to.

Training Required

All personnel participating in the entry must be current in training for:

1. Confined Space

Required Equipment

The following equipment is required:

1. Air monitoring equipment in current calibration (installed oxygen meter or hand held oxygen meter)

2. Clean room clothing

Special Requirements

1. Insure installed atmospheric monitor (oxygen) is functioning and not in alarm

2. xxxxxxx hatch is open (see IF Personnel)

3. Personnel knowledgeable of operating xxxxx, and xxxxxxxxxx entry technique

4. No work that will create a hazardous atmosphere will be performed. CO2 cleaning, welding, painting, solvent use, grinding operations etc. must be approved by SHEA prior to work. Note: such operations may be disallowed



5. No manual cryogenic liquid fills or cryogenic transport dewar are to be present in xxxxxxxx or performed during the entry

Pre-Entry Instructions

1. Verify that all personnel are confined space trained

2. Verify personnel knowledgeable of operating xxxxxxx, door latch and xxxxxxx entry technique

3. Notify xxxxxx Lead or on-site xxxxx personnel

4. Verify that the xxxxxxxx hatch is open, light is on

Entry Instructions

1. Perform air monitoring prior to entry and verify that conditions are safe for entry. xxxxxx oxygen meters are read before entry xxxxxxxxx display by xxxxxxxxx and during entry on the xxxxxxxx in the xxxxxxx.

2. Using the calibrated confined space meters, verify that oxygen concentration in the pit is between 19.5% and 23.5%. Oxygen should be at 20.9% nominal. If reading is +/- 0.3% (<20.6% or >21.2%), Do Not Enter, contact the summit lead and the SHEA to determine cause of abnormal reading.

3. Record the initial oxygen concentration on the attached Atmospheric Monitoring Data sheet. Continue to monitor oxygen when performing work in the xxxxxxx. Log all readings on Atmospheric Monitoring Data sheet

4. Record the names all person(s) entering the xxxxxx on the Atmospheric Monitoring Data sheet.

CAUTION If the oxygen monitor detects an oxygen deficient atmosphere, an alarm will

sound in the xxxxx room. If the alarm sounds, all personnel are to exit the area immediately.

1. Perform the xxxxxx entry and accomplish the tasks required.

2. Upon completion, exit the xxxxxx and record the oxygen concentration on the Atmospheric Monitoring Data sheet.

Securing Confined Space - Post Entry

1. Turn off lights and close gate

2. Notify lead / xxxxxxx personnel

3. Send a copy of the Atmospheric Monitoring Data sheet to the site SHEA office.

confined space entry safety program

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