Final Addendum to the CDM Accident Prevention Plan Remedial Investigation Activities Raritan Bay Slag Superfund Site

Home , Diving air compressor, Messenger line

Currents and Sediment Dynamics Studies

Prepared For: CDM Federal Programs Corporation 14420 Albemarle Point Place, Ste 210 Chantilly, VA 20151

Prepared By: Woods Hole Group, Inc. 81 Technology Park Drive East Falmouth, MA 02536

November 2010

Woods Hole Group, Inc.

FINAL ADDENDUM TO THE CDM ACCIDENT PREVENTION PLAN

Currents and Sediment Dynamics Studies for the Raritan Bay Slag Superfund Site Old Bridge and Sayreville, New Jersey

Prepared for:

CDM Federal Programs Corporation As an addendum to the existing Accident Prevention Plan for the Raritan Bay Slag Superfund Site

Prepared by: Woods Hole Group 81 Technology Park Drive East Falmouth, MA 02536

November 22, 2010

Final Addendum to CDM APP i 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ

110 Fieldcrest Avenue, 6th Floor Edison, New Jersey 08837 tel: 732 -225-7000 fax: 732- 225-7851

November 30, 2010

Kansas City District Corps of Engineers CENWK- PM-ED Kristine Stein 601 East 12th Street Kansas City, Missouri 64106-2896

Tanya Mitchell U.S. Environmental Protection Agency, Region 2 290 Broadway-19th Floor New York, NY 10007-1866

Project: Contract No. W912DQ-08-D-0018 Subject: Final Addendum to the CDM Acident Prevention Plan Raritan Bay Slag Superfund Site Old Bridge/Sayreville, New Jersey

Dear Ms. Stein and Ms. Mitchell:

CDM is pleased to submit the Final Addendum to the CDM APP for the Raritan Bay Slag Superfund Site in Old Bridge and Sayreville, New Jersey. The APP Addendum was prepared for CDM by the Woods Hole Group and addresses activities that will be performed in connection with the currents and sediment dynamics work. Enclosed are 2 hard copies and one electronic copy on CD for the USACE and three hard copies and two electronic copies on CD for EPA.

Please feel free to contact me at (732) 590-4695 should you require additional information.

Very truly yours,

CDM FEDERAL PROGRAMS CORPORATION

Edward Leonard, CHMM Project Manager

Enclosures cc: J. Litwin (letter only) J. Oxford, CDM (1 copy) J. Czapor, CDM (letter only) Project File (1 copy) J. Mayo, CDM (1 copy)

Final_Addendum_to_the_APP_ltr.doc Woods Hole Group, Inc.

Table of Contents

1.0 PROJECT OVERVIEW ...... 3

1.1 PROJECT DESCRIPTION ...... 3

1.2 BACKGROUND INFORMATION ...... 3 1.2.1 Boating Contractors ...... 3 1.2.2 Work Phases...... 3 2.0 SUBCONTRACTORS AND SUPPLIERS ...... 4 3.0 MARINE OPERATIONS ...... 5

3.1 LIFE JACKETS ...... 6

3.2 RING BUOYS/MAN OVERBOARD SITUATIONS ...... 6

3.3 DECK SAFETY ...... 7

3.4 MOBILIZATION/DEMOBILIZATION ...... 7

3.5 GENERAL VESSEL SAFETY ...... 8

3.6 FLOAT PLAN ...... 8 4.0 TRAINING REQUIREMENTS ...... 9 5.0 SAFETY AND HEALTH INSPECTIONS ...... 10 6.0 EMERGENCY REFERENCES ...... 11 7.0 CONTINGENCY PLAN FOR SEVERE WEATHER ...... 12 8.0 REFERENCES ...... 13 APPENDIX A. ACTIVITY HAZARDS ANALYSIS ...... A-1 APPENDIX B. DIVE SAFETY PLAN ...... B-1 APPENDIX C. RESUME OF J. MICHAEL WALSH ...... C-1

Final Addendum to CDM APP ii 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ

Woods Hole Group, Inc.

EMERGENCY CONTACT INFORMATION: CURRENTS AND SEDIMENT DYNAMICS STUDIES

Position Name/Contact Information WHG Project Manager Kirk Bosma (off) 508-495-6228 (cell) 508-345-6649

Randive Project Manager Kurt Erlandson (off) 732-324-1144

WHG Certified Industrial Hygienist Phillip Hunt, CIH 603-772-5693

WHG On Site Health & Safety Officer Michael Walsh (off) 508-495-6251 (cell) 781-706-9830

CDM Project Manager Edward Leonard (off) 732-590-4695 (cell) 732-372-8909

CDM Corporate Health and Safety Manager Shawn Oliveira, CIH (off) 406-293-8595

Final Addendum to CDM APP 2 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

1.0 PROJECT OVERVIEW This Addendum to the Final APP prepared by CDM for the Raritan Bay Slag Superfund Site, dated September 2010, was prepared to address specific activities associated with current and sediment dynamics studies performed by the Woods Hole Group (WHG), a subcontractor to CDM.

1.1 PROJECT DESCRIPTION A horizontal acoustic Doppler current profiler (HADCP) will be deployed around the Cheesequake Creek Inlet for a one month data collection period. Two tidal water quality and current meter surveys also will be conducted in the Creek onboard a survey vessel. Nearshore current and wave velocity gauges will be deployed at four (4) locations in the study area. There is a separate work plan (Woods Hole Group, 2010), which provides a detailed description of the scope of work and methods.

1.2 BACKGROUND INFORMATION

1.2.1 Boating Contractors Boating Field Services and dive services will be conducted by the following subcontractor:

Organization: Randive, Inc Perth Amboy, NJ,

Contact: Kurt Erlandson Office: 732-324-1144

Tasks: Marine Operations, Dive operations

1.2.2 Work Phases Deployment of tide and wave gauges and the first current measurements will be conducted on a Spring or Neap tide in November 2010 at the designated locations. During a subsequent spring or neap tide, a second set of current measurements will be obtained. Tide and wave gauges will be recovered after at least one month. An activity hazard analysis (AHA) for tide gauge deployment and current measurement is contained in Appendix A.

Final Addendum to CDM APP 3 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

2.0 SUBCONTRACTORS AND SUPPLIERS Randive, Inc. will be assisting with the field tasks that are covered by this Addendum.

Final Addendum to CDM APP 4 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

3.0 MARINE OPERATIONS The vessel used for all survey and deployment operations shall be appropriately sized to support a survey team of two (2), a boat captain, and all required support equipment. Vessel shall conform to all Federal and State regulations, pertaining to marine work, including holding a current USCG inspection if required and maintaining a licensed captain aboard at all times during operations. The Contractor shall issue the Notice to Mariners, notify the U.S. Coast Guard, local Harbor Masters, etc., well in advance to minimize potential conflicts with local boat traffic, fishing or security issues. The vessel will be equipped with one primary and one back-up VHF radio to permit communications with shore based personnel and the USGC.

Prior to departure the Captain shall brief all personnel on the orientation of the vessel, which should include:

• Location of life jackets and their proper use, which may include practice donning • Response plan for a man overboard emergency, including individual responsibilities • Location of ring buoys, and their proper use • Location of fire extinguishers and the instructions for their proper use • General safety matters, including a review for deploying life raft, and EPIRB location • Review of procedures and individual responsibilities during deck operations

The following personnel protection measures shall be in place aboard the M/V Linda Ann and M/V Becky Ann or any substitute vessel required by this task:

• A safe means for boarding or leaving the vessel shall be provided. • Projections or tripping hazards shall be removed or properly labeled with warning signs or distinctively marked with safety yellow. Tools, materials, extension cords and hoses shall be placed down so as not to cause a tripping hazard. • Access pathways shall be kept clear. • Hazardous edges which may cause injury to the head shall be properly padded. • Guardrails and/or toe-rails shall be provided at the stern opening. • Non-skid surfaces shall be applied on the exposed work deck area. • Electrical circuits with GFCI protection shall be provided in grounded 120V or 240V systems exposed to the weather. • Clean (potable or equivalent) water will be available on the vessel. Divers and their equipment will be thoroughly rinsed with clean water upon exiting the water.

The following standing orders shall be in effect for the duration of project operations:

Final Addendum to CDM APP 5 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

• NO night operations are permitted • Marine operations will be suspended in any dangerous weather condition including, fog, heavy rain or the presence of dangerous lightening. NOAA Marine Weather Radio will be monitored for the latest advisories. Ship scientists should not perform activities on the vessel’s open deck during such conditions. Activities should be confined to the enclosed portions of the vessel. • Swimming is prohibited for all personnel, except for divers in the performance of their duties, unless necessary to prevent injury or loss of life • Passageways shall be kept clear of obstructions at all times.

Work area shall be kept clean and orderly, all waste shall be properly stowed while at sea and later disposed ashore at the end of each working day.

In the Cheesequake Creek area, diving will be from the shoreline. Clean water will be available on the shore. Divers and their equipment will be thoroughly rinsed upon exiting the water.

3.1 LIFE JACKETS All vessels are required to carry one USCG approved Type 1 Adult Life Jacket for every person on board. A Type 1 life jacket is designed to keep a person afloat, with their face up out of the water. All life jackets must be outfitted with a battery operated light unit, and reflective tape. Life jackets should be stored in a readily accessible location. Be sure to check that there are adequate numbers of life jackets aboard before leaving the dock. Check the condition of the life jacket assigned to you. Tug tightly on the straps to see if they are secure, inspect fasteners for proper operation, and check for damage or deterioration. If you suspect that the life jacket is damaged, fold the jacket in half, and squeeze the two halves of the jacket together. If the sound of escaping air is heard, the life jacket is damaged, and the flotation material inside the jacket will absorb water if used. A defective life jacket should not be used, and a suitable replacement found.

3.2 RING BUOYS/MAN OVERBOARD SITUATIONS Using a ring buoy is the first course of action in the event an individual has fallen overboard. It can be thrown to a victim in the water, and it will provide sufficient flotation to keep the individual afloat until help arrives. These units should be stowed in quick release racks, on both sides of the vessel, in a location that provides quick and ready access. It is important to check the locations of these units before leaving the dock as a means of preparing yourself in the event of an actual emergency. One ring buoy should be on the deck and readily accessible to the scientific team working on the deck. All USCG approved ring buoys must be 30 inches in diameter, be international orange in color, and fitted with reflective tape. It is recommended that these ring buoys be outfitted with 90 feet of buoyant line, and at a minimum one aboard should be equipped with an approved water light. It is recommended that vessels over 26 feet but less than 100 feet in length, carry two ring buoys, with one of these units outfitted with an approved light.

Final Addendum to CDM APP 6 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

Small boats under 26 feet in length are not required to carry ring buoys, but one without a light is strongly recommended.

All personnel involved with the handling of scientific gear on deck should be aware that the most important rules to remember in a man overboard situation are to, NEVER LOSE SIGHT OF THE INDIVIDUAL IN THE WATER, and to inform the captain as quickly as possible. A ring buoy should be thrown to the general vicinity of the victim. Do not throw a ring buoy directly at the victim; hitting the victim with the ring buoy may cause injuries. The recovery of an individual from the water is best made by keeping the person to leeward, or to the downwind side of the vessel. In all recovery efforts, the stern should be kept away from the person in the water to avoid injury from the propeller. A boarding ladder, or other suitable means, should be available to facilitate recovery. A designated rescue swimmer, outfitted with a tether and lifejacket, should be standing by in the event the victim is injured, or incapacitated. A rescue harness may be required to hoist and recover an injured victim from the water.

3.3 DECK SAFETY There are inherent risks associated with going to sea, especially when oceanographic equipment is being deployed and retrieved over the side. You must be aware of what is happening around you at all times, in order to take the necessary precautions to avoid personnel injury. All personnel involved in the support deck operations MUST be properly attired in the required safety gear, including safety shoes and a USCG approved Type V personal flotation device (work vest). Personnel directly involved with handling equipment over the side should also be cognizant of potential snag hazards. Items such as loose clothing, rings, or other personal effects may become snagged on equipment during a deployment resulting in serious personal injury, or a possible man overboard situation. These items should be removed and properly stowed before leaving the dock.

• All personnel shall be briefed on project equipment and procedure prior to departure • Prior to departure, an inspection shall be conducted to ensure that all equipment is properly secured • Heavy weights should not be suspended above the deck without positive lateral control, taglines are recommended • A pre-launch conference shall be held prior to the first deployment of the current/wave gauge to ensure maximum coordination. One person shall be given charge of the actual operation • When it is necessary that work be performed near the edge of the dock, it should be done in a stable position, such as kneeling or sitting. If it must be done from a standing position the employee’s work vest should be attached to a lifeline that is manned and attached to a fixed object, if conditions warrant.

3.4 MOBILIZATION/DEMOBILIZATION There are a number of safety related concerns that must be addressed during this phase of the project. The fact that the vessel is still at the pier does not relieve you of your responsibility for wearing the required safety gear, which includes safety shoes and a Final Addendum to CDM APP 7 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

USCG approved Type III work vest. A work vest shall be worn at any time there exists the risk of falling into the water. This includes accessing, or disembarking the vessel from gangways or ladders, or at any time working along the edge of the pier or on the exposed decks of the project vessel.

Personnel going topside in the area of the bridge, for the purpose of mounting project equipment, should be aware of certain dangers that are not readily apparent. High frequency radar and radio waves and the associated amounts of electrical power necessary to operate those components may be present. These have the potential of inflicting serious injury or death. Personnel going aloft in these areas should obtain prior permission from the Captain, and ensure that all radio and radar transmitters are placed on the “stand-by” position, and the power is secured to all antennae.

3.5 GENERAL VESSEL SAFETY Randive, Inc. will provide logistical support in the form of the appropriately sized vessel (with licensed operator) along with surveying gear if required by the project. The SSO will verify that all working/towing vessels and work platforms have been properly outfitted and have been inspected per NAE requirements.

• While on the boat or work platform or if any situation presents a hazard of falling into the water, Coast Guard approved Type III personal floatation devices must be worn. If water temperatures are below 50°F, an insulated Mustang-type flotation suit shall be worn to protect against thermal shock and/or hypothermia in the event of falling overboard. • Prior to leaving shore, a plan of the day's activities, including time and place of departure, anticipated return time, and an accurate list of the persons on board the vessel should be left with a responsible person onshore and the Program Manager or his designee in case of emergency. • All equipment used on the boat should be secured when not in use. • All passengers shall be informed of the locations of all safety equipment on the boat including first aid kits, fire extinguishers, life-vests, radio, life rafts, etc.

3.6 FLOAT PLAN A USACE EM 385-1-1-compliant float plan shall be prepared by the operator of a launch or motorboat when engaged in surveying, patrolling, or inspection activities that are remote and are expected to take longer than 4 hours or when the operator is traveling alone. The plan shall be filed with the boat operator’s supervisor and shall contain at least the following minimum elements: vessel information (make/model or local identifier); personnel on-board; activity to be performed; expected time of departure, route, and time of return; means of communication.

Project boating activities are anticipated to meet the criteria requiring a float plan.

Final Addendum to CDM APP 8 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

4.0 TRAINING REQUIREMENTS Health and Safety Training

At least two (2) members of the field team shall be certified in First Aid/CPR.

Employees must be instructed in the activity-specific aspects of emergency evacuation. For boat operations, emergency evacuation may require abandoning ship. The field team will review with the boat captain the details for determining when the boat will be abandoned, individual responsibilities and the orderly procedures that will be followed if such a command is issued.

Final Addendum to CDM APP 9 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

5.0 SAFETY AND HEALTH INSPECTIONS Safety and health inspections will be conducted prior to the commencement of field work and daily for all equipment and vessels in accordance with standard operating procedures applicable to the equipment or vessels to confirm that they are in good working order. The WHG site safety and health officer, Mike Walsh, will conduct general inspections of the site conditions and work processes at the commencement of the work, at the commencement of new tasks, and periodically throughout the conduct of field work. Vessel inspections will be carried out by the captain of the sampling vessel. The vessel to be used complies with USCG safety guidelines.

Final Addendum to CDM APP 10 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

6.0 EMERGENCY REFERENCES The field team will review with the boat captain all emergency signals that he will use to communicate an emergency to the field crew. The team will also review what actions, if any, they will be assigned in the event of an emergency on the boat. All field crew members must know the locations of the radio, fire extinguishers, first aid kits, and other emergency equipment that is located within the boat. The WHG SSO shall review the operations of the boat radio in the event that the captain is injured or otherwise unable to operate it. The WHG SSO (or designee), appointed for this project, is also capable of piloting the boat should the boat captain be unable to do so.

The phone numbers of the WHG, Randive, and CDM representatives are provided as emergency references shown on page iv of this plan.

Final Addendum to CDM APP 11 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

7.0 CONTINGENCY PLAN FOR SEVERE WEATHER A weather radio will be monitored on the boat for the duration of the water-based project operations to monitor for severe weather, such as strong winds, or lightning. Work will cease if severe weather warnings are issued for the site location or surrounding county. The boat shall not be operated when small craft advisories are in effect. The boat captain will decide when conditions are deemed unsafe for boat operations. However, boat operations may be terminated before small craft advisories are issued when the following conditions exist:

• conditions are such that the integrity of the samples are in jeopardy, • transferring equipment or samples from one craft to another is deemed hazardous or unsafe, or • if the operation of handling sampling equipment over the side is deemed too hazardous.

Final Addendum to CDM APP 12 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

8.0 REFERENCES CDM. 2010. Statement of Work, in “Request for Proposal for Currents and Sediment Dynamics Studies for the Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, New Jersey”. Solicitation No. RFP-6402-018-004-CS. August 2010. CDM Federal Programs Corporation, 14420 Albemarle Point Place, Suite 210, Chantilly, VA 20151. Randive, Inc. 2010. Dive Safety Plan. October 2010. Randive, Inc. of New Jersey, 1160 State Street, Bldg. 5A, Perth Amboy, NJ 08861. Woods Hole Group. 2010. “Work Plan: Currents and Sediment Dynamics Studies for the Raritan Bay Slag Superfund Site”. October 2010. Woods Hole Group, 81 Technology Park Drive, E. Falmouth, MA 02540.

Final Addendum to CDM APP 13 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Old Bridge and Sayreville, NJ Woods Hole Group, Inc.

APPENDIX A. ACTIVITY HAZARDS ANALYSIS

Draft Final Addendum to CDM APP A-1 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Sayreville, NJ Woods Hole Group, Inc.

ACTIVITY HAZARD ANALYSIS FORM 1. Contract No: 2. Project: Raritan Bay Slag Site 3. Phase: Tide Data Collection, Instrument Deployment 4. Date: 21 October 2010 5. Location: Sayreville/Old Bridge, NJ 6. Prepared by: Phillip R. Hunt, CIH

7. PRINCIPLE STEPS 8. POTENTIAL HAZARDS 9. RECOMMENDED CONTROLS 1. Transferring personnel and equipment to vessel Man overboard • Personnel and visitors are required to wear Type I or Type III PFD when transferring to vessel • Provide safe access (gangways, ladders or ramps for vertical breaks of 19 inches or more). • Personnel will be instructed in the response plan for a man overboard emergency, including individual responsibilities and location of rescue equipment. Back Injuries • Site personnel will be instructed in and use proper lifting techniques, including bending at the knees, avoiding twisting motions while lifting and holding loads close to the body while lifting and carrying. • Mechanical devices will be used when possible to reduce manual handling of materials. • Team lifting will be used when mechanical devices are not available. Slip, Trip Fall Hazards • Work areas and means of access shall be maintained safe and orderly. • Even terrain or decking shall be used for unloading areas • Ensure all guardrails are in good condition and meet regulatory requirements.

Draft Final Addendum to CDM APP A-2 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Sayreville, NJ Woods Hole Group, Inc.

7. PRINCIPLE STEPS 8. POTENTIAL HAZARDS 9. RECOMMENDED CONTROLS 2. Marine Operations Harbor traffic - collisions • The captain shall issue the Notice to Mariners; notify the U.S. Coast Guard, local Harbor Masters, etc., well in advance to minimize potential conflicts with local boat traffic, fishing or security issues. • Vessel shall conform to all Federal and State regulations, pertaining to marine work, including holding a current USCG inspection if required and maintaining a licensed captain aboard at all times during operations. • During traverses captain shall maintain visual contact with all nearby vessels and establish radio contact where path of traverse may intersect path of nearby vessels. • No night operations are permitted. Man overboard • Personnel and visitors are required to wear Type I or Type III PFD when transferring to vessel • Provide safe access (gangways, ladders or ramps for vertical breaks of 19 inches or more). • Personnel will be instructed in the response plan for a man overboard emergency, including individual responsibilities and location of rescue equipment. Severe or dangerous weather • Marine operations will be suspended in any dangerous weather condition including, fog, heavy rain or the presence of dangerous lightening. NOAA Marine Weather Radio will be monitored for the latest advisories. Ship scientists should not perform activities on the vessel’s open deck during such conditions. Activities should be confined to

Draft Final Addendum to CDM APP A-3 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Sayreville, NJ Woods Hole Group, Inc.

the enclosed portions of the vessel. ACTIVITY HAZARD ANALYSIS FORM 1. Contract No: 2. Project: Raritan Bay Slag Site 3. Phase: Tide Data Collection, Instrument Deployment 4. Date: 21 October 2010 5. Location: Sayreville/Old Bridge, NJ 6. Prepared by: Phillip R. Hunt, CIH

7. PRINCIPLE STEPS 8. POTENTIAL HAZARDS 9. RECOMMENDED CONTROLS 3. Acoustic Depth Current Profiler (ADCP) Slip, trip, fall hazards • Keep lines and equipment out of passageways. Instrument Deployment • Non-skid surfaces shall be used in sample handling work areas. 4. SEAPAC Tide Gage Deployment Deployment hazards • Work clothes suitable for the anticipated weather and working conditions • Operations will be suspended in any dangerous weather condition including, fog, heavy rain or the presence of dangerous lightening • Avoid pinch points between instrument and pier and boat and pier during attachment of tide gauge. EQUIPMENT TO BE USED INSPECTION REQUIREMENTS TRAINING REQUIREMENTS General • Vessel shall conform to all Federal and Captain shall brief all personnel on the orientation of State regulations, pertaining to marine the vessel work, including holding a current USCG • Location of life jackets and their proper use, inspection if required and maintaining a • Response plan for a man overboard emergency, licensed captain aboard at all times during • Location of ring buoys, and their proper use operations. • Location of fire extinguishers and the instructions for their proper use • General safety matters, including a review for deploying life raft, and EPIRB location • Review of procedures and individual responsibilities during deck operations Acoustic Depth Current Profiler • Inspect all equipment for proper operation. • Emergency procedures for accidents and other • Inspect integrity of instrument housing to emergencies shall be reviewed with all personnel limit potential for shock hazards. prior to beginning operations. SEAPAC Tide Gage • Inspect all equipment for proper operation. • Emergency procedures for accidents and other • Inspect integrity of instrument housing to emergencies shall be reviewed with all personnel limit potential for shock hazards. prior to beginning operations.

Draft Final Addendum to CDM APP A-4 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Sayreville, NJ Woods Hole Group, Inc.

APPENDIX B. DIVE SAFETY PLAN

Draft Final Addendum to CDM APP B-1 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Sayreville, NJ Randive, Inc. of New Jersey

PRE‐DIVE MEETING A. Dive Supervisor will make the individual assignments for each member prior to the dive. B. Dive Supervisor will conduct a meeting addressing the following points: 1. Review materials and site information regarding the work to be performed. 2. Review the use of the underwater tools and terminology.

C. Dive Supervisor will prepare a dive plan and establish a dive procedure to follow for the actual work to be performed. 1. Give directions where the dive will begin; what needs to be inspected; the method of inspection and when and where, dive will be terminated. 2. Placement of personnel and placement of lines and floats, if necessary. 3. Partially fill out inspection report and dive log.

D. The dive supervisor will address safety applications for the dive operation. 1. Possible hazards at the site, such as debris and/or current. 2. Outline hand signals to be used by scuba divers and emergency plan. 3. Review on‐site safety equipment.

E. Diver’s Responsibilities 1. Note any problems with the structure or vessel during the inspection. 2. Advise the dive supervisor when the inspection is complete and return to the surface. 3. Assist the dive supervisor in completing the inspection report and dive log.

F. Safety Diver’s Responsibilities 1. Assist the primary diver with the underwater inspection and be responsible for the underwater safety of the diver during the inspection.

POST‐DIVE MEETING A. Dive Supervisor will conduct a post dive meeting with the dive team addressing the following: 1. Review the inspection and underwater conditions. 2. Discuss any potential safety problems with the inspection or future considerations that should be taken to create a safer environment. 3. Finish the inspection report and complete dive log. Randive, Inc. of New Jersey

DIVE PLAN

SUBJECT: DEPLOYMENT OF AN OFFSHORE CURRENT AND WAVE MEASUREMENT SYSTEM, AND THREE NEARSHORE CURRENT AND WAVE MEASURMEMENT SYSTEMS. INSTALLATION OF HORIZONTONAL MOUNTED CURRENT METER ON PILING IN CHEESEQUAKE CREEK INLET.

LOCATION: RARITAN BAY SLAG SUPERFUND SITE, OLD BRIDGE, LAURENCE HARBOR AND SAYREVILLE, NJ

DATE/TIME: TO BE ANNOUNCED

DESCRIPTION: DIVERS WILL ASSIST WITH THE DEPLOYMENT AND RECOVERIES OF OCEANOGRAPHIC EQUIPMENT. DIVERS WILL PROVIDED A VESSEL TO SERVE AS THE OFFSHORE WORK PLATFORM AND THE DIVERS WILL DEPLOY, SECURE AND RECOVER INSTRUMENT PLATFORMS FROM THE BOTTOM. THE DIVE TEAM WILL ASSIST WITH INSTALLATION AND RECOVERY OF H-ADCP (HORIZONTAL CURRENT METER) ON PILING IN CHEESEQUAKE CREEK INLET

DIVE STATION: DIVE SUPPORT VESSEL “BECKY ANN” Our vessel and personnel meet or exceed all Federal, USACE and USCG requirements; please see attached certificates.

DIVE ENTRY EXIT METHOD: SECURED LADDER OFF THE DIVE SUPPORT VESSEL

EQUIPMENT TO BE UTILIZED:

SURFACE SUPPLIED AIR

SUPERLITE 27 DIVE HELMETS

CONTACT INFORMATION FOR THE PREPARATION OF THE DIVE OPERATIONS PLAN RANDIVE, INC. OF NEW JERSEY 1160 STATE STREET, BLDG. 5 PERTH AMBOY, NJ 08861 OFFICE: 732-324-1144 (24/7) FAX: 732-324-1555 MAIN EMAIL: [email protected] POC FOR DIVE PLANS: KURT ERLANDSON/CHARLENE FORD

Randive Inc. of New Jersey

DIVE SAFETY PLAN

DIVE DESCRIPTION The purpose of these dives will be to: DEPLOYMENT AND RECOVERIES OF OCEANOGRAPHIC EQUIPMENT

DIVE SAFETY PLAN Dive operations will commence on: ON OR ABOUT 11/15/2010 At TBA

All procedures will be approved by the U.S.A.C.E. before the actual work is started. All dive team members will meet all health and training requirements by the Association of Diving Contractors, OSHA, Army Corp of Engineers, and Randive, Inc. All scuba and surface supplied diving operations will conform to Randive's Safe Practices Manual which has incorporated all the requirements adopted by the United States Army Corp of Engineers, A.D.C. and OSHA. If for any reason the dive plan is altered in mission, depth, personnel or equipment, the Corps of Engineers’ Diving Coordinator shall be contacted in order that he/she may review any revision prior to actual operation. Due to the vast size of the documents for each diver, the dive team will have a hard copy of of all documentation i.e. dive certs, physicals, CPR, first aid, equipment list, and Safe Practices Manual on-site. The hard copy will remain on-site with the team for the duration of the project.

There will be a 4-man dive team with all personnel being qualified and trained to enter the water. A rotating non-decompression schedule will be utilized for the duration of the project with a safety diver on stand-by at all times.

Surface-supplied air with communications will be utilized during the project. Bail out bottles will be used for safety during each dive.

Each person will have the following responsibilities:

A. Dive Supervisor/Radio Operator/Diver: The dive supervisor is responsible for designating each person’s job title. The dive supervisor can be the diver. In this case the radio operator is responsible for directing personnel during the dive operation.

B. Stand-by Diver: The stand-by diver has to be fully dressed and able to be in water within 60 seconds. The stand-by diver is responsible for assisting an injured or unconscious diver out of the water.

C. Tender: The tender is responsible for the diver’s air hose and all equipment on deck.

D. Diver: The diver is responsible for in-water duties

E. Dive Log: Dive logs will be presented at the time of the dive of the projected job date.

F. Diver is to note underwater and surface conditions before dive on the Pre Dive Check-list.

EMERGENCY PROCEDURES

Operations will be terminated if the dive team supervisor determines that the conditions are unfavorable for safe diving. Emergency First Aid equipment will include: an oxygen unit, backboard with straps and floating device, an EMT crash kit and a diving first aid kit with all appropriate medical supplies.

DIVE PERSONNEL

KEITH MICHALSKI/ROBERT ROSS Stand-by ANDREW SECALLUS/MIKE SMITS Supervisor: Diver(s):

JOSEPH MANSONET EDWARD SOUTHWORTH

DAVID LAMON JASON BALLANTYNE/ROD CUNLIFFE Diver(s): Tender(s):

LARRY NELSON TRAVIS JENKINS/PETER THIERRY The following page(s) outline our current general operations procedures. 1 EMERGENCY MANAGEMENT PLAN

The purpose of this plan is to assert positive actions to be taken in responsibly recognizing, evaluating and controlling the project work for prevention of accidents which cause personal injury or illness, property damage or interruption of work.

RESPONSIBILITIES

Management: This plan requires management to be responsible for planning deliberate accident prevention measures, providing safe equipment and working conditions, training a competent and safety-minded force, and maintaining records prescribed for accidents, illness and injuries.

Supervisors: Supervisors shall be responsible for observing and evaluating training. They are also responsible for correction of deficiencies, unsafe conditions or defective equipment when detected or reported by employees or Government Representatives.

R. Ross/K. Michalski/J. Mansonet/D. Lamon/L. Nelson shall be the Safety Representative on this project. The duties and responsibilities of the Safety Representative are as outlined in this plan.

Divers/Tenders: Workers are responsible for the proper maintenance and use of safety equipment. They shall work with consideration for others, reporting all unsafe conditions, defective equipment and injuries immediately to the supervisor.

Subcontractors: Subcontractors shall be responsible for the full provisions of this Plan. A copy of this plan shall be provided to them.

In case of divers emergency/topside emergency the following personnel are responsible for:

Radio Op/Dive Supervisor: The radio operator is responsible for directing personnel during an emergency. Once the dive team is clear of the water, and all personnel are safe, the project supervisor then assumes this responsibility.

Tender: The tender is responsible for the diver’s air hose and assisting the diver out of the water. If the diver is unconscious, the tender shall assist with getting the diver onto a small boat/back board. Once the diver is out of the water, the tender may begin emergency first aid/CPR.

Stand-by diver: The stand-by diver shall assist the diver out of the water, via diving to unfoul or on the surface to assist with getting the diver on board the dive platform.

Diver: The diver is responsible for getting out of the water if instructed by topside.

Means of communication between dive site and project office/USACE project manager: POC ~ Dive Supervisors/Divers: Divers/Tenders: Kurt Erlandson (C) 732-991-2273 Jason Ballantyne (C) 908-433-0328 Bob Ross (C) 732-735-3279 Rod Cunliffe (C) 908-216-4411 Joe Mansonet (C) 732-735-4607 Travis Jenkins (C) 808-366-1875 Keith Michalski (C) 732-991-2274 Andrew Secallus (C) 973-479-6223 Larry Nelson (C) 917-887-7542 Edward Southworth (C) 732-492-8303 David Lamon (C) 908-601-7418 Peter Thierry (C) 908-907-4350

TRAINING

Each employee will be instructed in the company’s Safe Practices Manual, this Safety Plan and the specific hazards of the work. They will be trained in the correct methods of lifting and obtaining assistance for heavy or awkward loads to prevent back injuries, and special instructions will be given in the prevention of falls, which are the cause of one third of all accidents. Training shall include control of pollution from the work and manufacturer’s MSDS for hazardous materials. All employees and subcontractors have been given the Randive, Inc. Safety Plan. Copies of all pertinent MSDS for materials used on this project shall be maintained on site.

All Dive team members will be properly trained and briefed on dive operation to be performed.

Instructions will be given in call for emergency help from agencies with which arrangements have been made in advance. Notice of telephone numbers will be conspicuously posted for emergency use. (See Emergency Management Telephone Numbers)

This plan, posters and bulletins will be posted and be made available to all workers.

All project personnel will participate in a regularly scheduled accident prevention-training meeting of at least five minutes every week. The Safety Officer shall be given a copy of the meeting minutes.

Supervisors will meet monthly to review accidents and near misses, and to evaluate and plan training and maintenance. Reports will be given to the company President.

SANITATION

Drinking water will be carried in plastic-lined containers cleaned and refilled daily from a public water supply. Paper cups will be furnished and a place provided for their disposal.

If necessary, a portable chemical toilet will be provided near the work site. Replacement toilet supplies will be furnished and equipment maintained clean and sanitary. Washing facilities shall be provided by attachment of supply and drain lines, or provision of hand cleaner and issue of paper towels.

Approved first aid cabinet will be installed in the field site office and a portable kit will be maintained on the site. All injuries, no matter how slight, shall be reported for treatment.

No persons will be permitted to operate machinery or work in elevated locations while taking antihistamine or other drugs for minor illness.

Instructions will be given in identifying, avoiding, and first aid for insect stings, cold, wood preservative or immersion if encountered in the work environment.

FIRE PREVENTION

Fire extinguishers of CO2 or other approved types will be furnished on the project. They will be stationed at the site trailer, welding machines and on boats and motorized equipment. Fire extinguishers shall be tagged and inspected monthly.

“No Smoking” signs shall be posted and a careful watch kept on areas containing flammable liquids.

Gasoline and solvents will be handled only in approved safety cans. Engines will be shut off during refueling. 3 EMERGENCY MANAGEMENT PLAN

*Unconscious diver to be removed with backboard, once injured diver is topside and safe, emergency medical procedures are to be performed as needed.

AVAILABLE MEANS OF TRANSPORTATION LOCAL POLICE: 911 STATE POLICE: 911 FIRE: 911 “911” HYPERBARICS: THE CENTER FOR WOUND HEALING AT RARITAN BAY MEDICAL CENTER 530 NEW BRUNSWICK AVENUE 1ST FL GRN WING PERTH AMBOY, NJ 08861

JACOBY MEDICAL CENTER PELHAM PARKWAY & EASTCHESTER ROAD BRONX, NY TELEPHONE: (718) 918-7520

ALL OTHER CHAMBERS IN OUR VICINITY: INSTITUTE OF ENVIRONMENTAL MEDICINE PHILADELPHIA, PA TELEPHONE: (215) 898-9095

U.S. COAST GUARD RESCUE COORDINATION CENTER AREA: STATEN ISLAND, NY TELEPHONE: (718) 668-7936 (USCG 24 HR#: (718) 354-4088) VHF CH. 16 USCG SANDY HOOK-MARINE EMERGENCY: (732) 872-0326

DIVERS ALERT NETWORK BUSINESS HOUR NUMBER: (919) 684-2948 24 HOUR NUMBER: (919) 684-8111 CONTACT: DANIEL NORD

ACCESSIBLE HOSPITAL RARITAN BAY MEDICAL CENTER ONE HOSPITAL PLAZA OLD BRIDGE, NEW JERSEY 08857 (732) 360-1000

ALTERNATE HOSPITALS ROBERT WOOD JOHNSON UNIVERSITY HOSPITAL 1 ROBERT WOOD JOHNSON PLACE NEW BRUNSWICK, NJ 08901 (732) 828-3000

Randive Inc. of New Jersey

JOB CONDITION ANALYSIS

DATE: TO BE ANNOUNCED PROJECT: RARITAN BAY SLAG SUPERFUND SITE LOCATION: OLD BRIDGE, LAURENCE HARBOR AND SAYREVILLE, NJ

ANTICIPATED CONDITIONS

WEATHER TO BE ANNOUNCED WATER CONDITIONS CALM TO FAIR TYPE OF BOTTOM MUD U/W VISIBILITY 6” TO 3’ DEPTH 20’ CURRENT .5 KNOT AIR TEMPERATURE TO BE ANNOUNCED WATER TEMPERATURE TO BE ANNOUNCED OBSTRUCTIONS VESSEL TRAFFIC OTHER

DIVER WORKING AREA

X OPEN CLOSED/CONFINED TUNNEL OTHER DIVE PLAN REVIEWED WITH DIVE TEAM & DIVERS ADVISED NOT TO X FLY WITHIN 24 HOURS OF FINAL DIVE

Randive, Inc. of New Jersey

ACTIVITY HAZARD ANALYSIS

ACTIVITY TITLE: DEPLOYMENT/RECOVERIES OF OCEANOGRAPHIC EQUIPMENT DATE: TO BE ANNOUNCED

PROJECT/BRANCH: RARITAN BAY, OLD BRIDGE & SAYREVILLE, NJ PREPARED BY: KURT ERLANDSON

STEP PROTECTIVE CLOTHING KEY STEPS IN ACTIVITY HAZARDS SAFE WORK PROCEDURE NO. AND EQUIPMENT

1. LOADING EQUIPMENT, SETTING UP WALKING ON DOCK USE CAUTION WHEN WALKING ON LIFE VESTS, HARD HATS, WORK STATION SHOES, PROPER WORK HANDLING HEAVY EQUIPMENT DOCK OR TRANSFERRING EQUIPMENT FROM DOCK TO VESSEL CLOTHES, GLOVES FALLEN OBJECTS * (WARM CLOTHES DURING USE PROPER LIFTING PROCEDURES, COLD/INCLEMENT WEATHER) USE AVAILABLE EQUIPMENT I.E. CRANE, FORKLIFT, ETC. DO NOT STAND UNDER ANY LIFTED OBJECTS, ALWAYS KNOW WHAT IS OVERHEAD.

2 DIVE OPERATIONS CURRENTS, NO DIVE TO BE PERFORMED IN PROPER DIVE EQUIPMENT, VHF CURRENT GREATER THAN 1 KNOT RADIO, DIVE FINS, LOCK OUT VESSEL TRAFFIC TAGS UNDER WATER OBSTRUCTION NOTIFY VESSEL TRAFFIC OF DIVE OPERATION, MAINTAIN PROPER VHF VESSEL WORK IS PERFORMED ON COMMUNICATIONS, FLY DIVE DIVE OPS FLAGS. USE CAUTION WHEN MOVING AROUND ON BOTTOM OF VESSEL. INSURE VESSEL IS LOCK OUT/TAGGED OUT FOLLOW SAFE DIVE PROCEDURES

3. BREAKING DOWN DIVE STATION, WALKING ON DOCK USE CAUTION WHEN WALKING ON LIFE VESTS, HARD HATS, WORK UNLOADING EQUIPMENT SHOES, PROPER WORK HANDLING HEAVY EQUIPMENT DOCK OR TRANSFERRING EQUIPMENT FROM DOCK TO VESSEL CLOTHES, GLOVES, (*WARM FALLEN OBJECTS CLOTHES DURING COLD/INCLE- USE PROPER LIFTING PROCEDURES, MENT WEATHER) USE AVAILABLE EQUIPMENT I.E., CRANE, FORKLIFT, ETC. DO NOT STAND UNDER ANY LIFTED OBJECTS, ALWAYS KNOW WHAT IS OVERHEAD. ORP FORM 654 21 MAR 88 WORKER INITIALS: ______

______(Previous editions are obsolete)

Randive, Inc. of New Jersey

ACTIVITY HAZARD ANALYSIS BOTTOM SURVEY

ACTIVITY TITLE: DEPLOYMENT/RECOVERIES OF OCEANOGRAPHIC EQUIPMENT DATE: TO BE ANNOUNCED

PROJECT/BRANCH: RARITAN BAY, OLD BRIDGE & SAYREVILLE, NJ PREPARED BY: KURT ERLANDSON

PROTECTIVE STEP KEY STEPS IN HAZARDS SAFE WORK PROCEDURE CLOTHING AND NO. ACTIVITY EQUIPMENT

1. LOADING WALKING ON DOCK USE CAUTION WHEN WALKING ON DOCK OR LIFE VESTS, HARD HATS, EQUIPMENT, WORK SHOES, PROPER WORK HANDLING HEAVY TRANSFERRING EQUIPMENT FROM DOCK TO VESSEL SETTING UP CLOTHES, GLOVES EQUIPMENT USE PROPER LIFTING PROCEDURES, USE AVAILABLE STATION * (WARM CLOTHES DURING EQUIPMENT I.E. CRANE, FORKLIFT, ETC. FALLEN OBJECTS COLD/INCLEMENT WEATHER) DO NOT STAND UNDER ANY LIFTED OBJECTS, ALWAYS KNOW WHAT IS OVERHEAD.

2. DIVE CURRENTS, NO DIVE TO BE PERFORMED IN CURRENT GREATER THAN 1 PROPER DIVE EQUIPMENT, OPERATIONS VHF RADIO, DIVE FINS, LOCK VESSEL TRAFFIC KNOT OUT TAGS UNDER WATER NOTIFY VESSEL TRAFFIC OF DIVE OPERATION, MAINTAIN OBSTRUCTION PROPER VHF COMMUNICATIONS, FLY DIVE FLAGS. VESSEL WORK IS USE CAUTION WHEN MOVING AROUND ON BOTTOM PERFORMED ON INSURE VESSEL IS LOCK OUT/TAGGED OUT DIVE OPS FOLLOW SAFE DIVE PROCEDURES

3. BREAKING DOWN WALKING ON DOCK USE CAUTION WHEN WALKING ON DOCK OR LIFE VESTS, HARD HATS, DIVE STATION, WORK SHOES, PROPER WORK HANDLING HEAVY TRANSFERRING EQUIPMENT FROM DOCK TO VESSEL UNLOADING CLOTHES, GLOVES, (*WARM EQUIPMENT USE PROPER LIFTING PROCEDURES, USE AVAILABLE EQUIPMENT CLOTHES DURING EQUIPMENT I.E., CRANE, FORKLIFT, ETC. FALLEN OBJECTS COLD/INCLE-MENT DO NOT STAND UNDER ANY LIFTED OBJECTS, ALWAYS WEATHER) KNOW WHAT IS OVERHEAD.

ORP FORM 654 21 MAR 88

WORKER INITIALS: ______

______(Previous editions are obsolete).

Randive, Inc. of New Jersey

ACTIVITY HAZARD ANALYSIS DIVER RELATED

ACTIVITY TITLE: DEPLOYMENT/RECOVERIES OF OCEANOGRAPHIC EQUIPMENT DATE: TO BE ANNOUNCED

PROJECT/BRANCH: RARITAN BAY, OLD BRIDGE & SAYREVILLE, NJ PREPARED BY: KURT ERLANDSON

STEP POTENTIAL MEANS OF PREVENTION ACTION IN CASE NO. HAZARDS Adequate training, utilize proper equipment. Assure that equipment is in good condition. SCUBA diver wears 1. DROWNING buoyancy compensators. Competent tenders. Standby diver. Appropriate craft, stages and access. Support personnel Administer CPR and get medical help immediately wear safety vest when appropriate.

Good physical condition with no lung disorder. Do not dive when experiencing pain in chest or cold symptoms. Proper 2 AIR EMBOLISM training in the physics and physiology involved in diving, familiarity with equipment. Breathe normally when diving. Recompression in recompression chamber by trained personnel. Emphasis shall always be stressed on the possibility of accidentally inflating buoyancy compensators.

DECOMPRESSION Adhere to proper decompression tables. Get adequate sleep and rest. No alcohol (after effects). Good physical Restore breathing. When necessary, give oxygen to patient. Stop 3. SICKNESS condition. Proper equipment for heavy-cold work. ascending when present

4. HYPOXIA Proper testing of air. Do not use air that has been stored in cylinders for long periods of time. Breathe fresh air and/or oxygen immediately

Diver should surface or be brought up immediately and provided 5. CARBON DIOXIDE EXCESS Assure adequate air supply. Do not breathe excessively. with fresh air.

CARBON MONOXIDE Diver should surface or be brought up immediately and provided 6. Assure proper maintenance and/or operation of air supply EXCESS with fresh air.

Surface the diver and relieve the cause. Remove obstruction with 7. STRANGULATION Do not dive with obstructive objects in mouth, such as dentures, gum or tobacco. fingers when possible. Encourage coughing and perform abdominal thrusts.

Various treatments depending on types of squeeze. Refer to U.S. 8. SQUEEZE Be knowledgeable of the many types of squeeze: sinus, lung, body mask, suit, etc. Assure that equalization is possible. Diving Manual Section 1.6.8.

9. BLOWUP When using deep-sea gear, assure proper adjustment of air control and exhaust valves. Wear all gear appropriately. Observe diver closely recompression possibly necessary.

Stand-by or buddy diver assist. Ditch scuba equipment when FOULING OR Study dive area and anticipate obstructions, such as lines, cables, detonation cord, snags, etc., as much as possible. Diver necessary. Give very careful attention to time and depths while 10. ENTANGLEMENT should always remember which side of an obstruction he passes and return the same way. diver is fouled to determine the need for recompression. Always dive with serrated diver’s knife.

Secure topside objects that may accidentally fall on diver. Diver shall stay in direct communication with operator of 11. MECHANICAL hoisting equipment used in connection with diver. Handle tools and equipment carefully and ensure that “Safe Clearance Apply first aid or treatment as required Procedures” are being complied with.

When welding and/or cutting under water, assure complete protective dress. All suit components shall join in such a 12. BURNS Procedures are the same as for non-related diving burns manner to prevent the trapping of slag or molten metal.

OVER EXERTION or The diver should know his own limitations and stay within them. Stop and rest before becoming exhausted. Maintain Provide help in getting diver from the water and provide rest and 13. EXHAUSTION and use proper equipment. warmth.

When welding or cutting, diver should never be between ground and arc. Assure that underwater electrical lighting is 14. ELECTROCUTION Give artificial respiration and medical assistance at once. properly insulated. Keep diver in surroundings and supply with liquids until body HYPOTHERMIA/ 15. Dress appropriate for underwater temperature. Ascend at the first sign of discomfort. temperature becomes normal. Medical assistance may be HYPERTHERMIA necessary. PREMATURE No connections of any kind are to be made topside while the diver is in the water. The blaster in charge is to be present Diver should surface or be brought to the surface immediately and 16. DETONATION & MISFIRES at all times. given the specific medical attention required. OF BLASTING CHARGES 17. LOSS OF VITAL SUPPORT PLEASE REFER TO OUR COMMERCIAL DIVNG SAFETY SECTION ATTACHED.

18. LOSS OF GAS SUPPLY PLEASE REFER TO OUR COMMERCIAL DIVNG SAFETY SECTION ATTACHED. LOSS OF 19. PLEASE REFER TO OUR COMMERCIAL DIVNG SAFETY SECTION ATTACHED. COMMUNICATIONS

20. LOST DIVER PLEASE REFER TO OUR COMMERCIAL DIVNG SAFETY SECTION ATTACHED.

21. INJURED DIVER PLEASE REFER TO OUR COMMERCIAL DIVNG SAFETY SECTION ATTACHED.

22. LOSS OF CONSCIOUSNESS PLEASE REFER TO OUR COMMERCIAL DIVNG SAFETY SECTION ATTACHED. INJURY/ILLNESS OF MEMBER OF SURFACE 23. PLEASE REFER TO OUR COMMERCIAL DIVNG SAFETY SECTION ATTACHED. CREW WITH DIVER IN WATER ORP FORM 654 21 MAR 88 WORKER INITIALS: ______

______(Previous editions are obsolete) Randive, Inc. of New Jersey

ACTIVITY FIRE HAZARD ANALYSIS

ACTIVITY TITLE: DEPLOYMENT/RECOVERIES OF OCEANOGRAPHIC EQUIPMENT DATE: TO BE ANNOUNCED

PROJECT/BRANCH: RARITAN BAY, OLD BRIDGE & SAYREVILLE, NJ PREPARED BY: KURT ERLANDSON

STEP PROTECTIVE CLOTHING KEY STEPS IN ACTIVITY HAZARDS SAFE WORK PROCEDURE NO. AND EQUIPMENT 1. LOCATE FIRE / SOURCE FIRE INSURE ALL HANDS ARE SAFE, I.E. HARDHAT, WORK PANTS, AND CLEAR ALL PERSONNEL REMOVE DIVER FROM WATER, WORK GLOVES. CLEAR AREA. 1 FIRE EXTINGUISHER

2. LOCATE FIRE / SOURCE FIRE WHEN ALL PERSONNEL ARE SAFE, FIRE EXTINGUISHER, ATTEMPT TO EXTINGUISH FIRE IF IT WATER EXTINGUISH FIRE CAN BE DONE SAFELY.

3. LOCATE FIRE / SOURCE FIRE IF FIRE CANNOT BE EXTINGUISHED, REMOVAL OF ALL CONTACT FIRE EMERGENCY / 911. PERSONNEL FROM SITE.

EVACUATE AREA AND CONTACT LOCAL FIRE DEPT.

ORP FORM 654 09 FEB 00 WORKER INITIALS: ______

______(Previous editions are obsolete)

Randive, Inc. of New Jersey

ACTIVITY HAZARD ANALYSIS RIGGING CABLE

ACTIVITY TITLE: DEPLOYMENT/RECOVERIES OF OCEANOGRAPHIC EQUIPMENT DATE: TO BE ANNOUNCED

PROJECT/BRANCH: RARITAN BAY, OLD BRIDGE & SAYREVILLE, NJ PREPARED BY: KURT ERLANDSON

PROTECTIVE STEP KEY STEPS IN HAZARDS SAFE WORK PROCEDURE CLOTHING AND NO. ACTIVITY EQUIPMENT

1. LOADING WALKING ON DOCK USE CAUTION WHEN WALKING ON DOCK OR TRANSFERRING LIFE VESTS, HARD HATS, EQUIPMENT, WORK SHOES, PROPER HANDLING HEAVY EQUIPMENT FROM DOCK TO VESSEL SETTING UP WORK CLOTHES, GLOVES EQUIPMENT USE PROPER LIFTING PROCEDURES, USE AVAILABLE STATION FALLEN OBJECTS EQUIPMENT I.E. CRANE, FORKLIFT, ETC. * (WARM CLOTHES DO NOT STAND UNDER ANY LIFTED OBJECTS; ALWAYS KNOW DURING WHAT IS OVERHEAD. COLD/INCLEMENT WEATHER)

2. DIVE CURRENTS, NO DIVE TO BE PERFORMED IN CURRENT GREATER THAN 1 PROPER DIVE OPERATIONS EQUIPMENT, VHF RADIO, VESSEL TRAFFIC KNOT DIVE FINS, LOCK OUT NOTIFY VESSEL TRAFFIC OF DIVE OPERATION, MAINTAIN ASSISTING IN REMOVAL OF TAGS OLD CABLE AND SETTING OF PROPER VHF COMMUNICATIONS, FLY DIVE FLAGS. NEW CABLE. INSURE DIVER IS CLEAR OF CABLE WHEN PULLING OLD VESSEL WORK IS PERFORMED CABLE TO SURFACE. DIVER IS TO INSURE HIS HOSE, HANDS ON AND ANY OTHER EQUIPMENT IS CLEAR OF CABLES. USE A MESSENGER LINE WHEN POSSIBLE. (*SEE HAZARD ANALYSIS DIVE OPS FOR USE OF BROCO / UNDERWATER BURNING IF NEEDED.) INSURE VESSEL IS LOCK OUT/TAGGED OUT FOLLOW SAFE DIVE PROCEDURES

3. BREAKING DOWN WALKING ON DOCK USE CAUTION WHEN WALKING ON DOCK OR TRANSFERRING LIFE VESTS, HARD HATS, DIVE STATION, WORK SHOES, PROPER HANDLING HEAVY EQUIPMENT FROM DOCK TO VESSEL UNLOADING WORK CLOTHES, EQUIPMENT USE PROPER LIFTING PROCEDURES, USE AVAILABLE EQUIPMENT GLOVES, (*WARM EQUIPMENT I.E., CRANE, FORKLIFT, ETC. FALLEN OBJECTS CLOTHES DURING DO NOT STAND UNDER ANY LIFTED OBJECTS; ALWAYS KNOW COLD/INCLE-MENT WHAT IS OVERHEAD. WEATHER) ORP FORM 654 21 MAR 88

WORKER INITIALS: ______

______(Previous editions are obsolete)

Randive, Inc. of New Jersey

ACTIVITY HAZARD ANALYSIS RIGGING/LIFTING OVERHEAD

ACTIVITY TITLE: DEPLOYMENT/RECOVERIES OF OCEANOGRAPHIC EQUIPMENT DATE: TO BE ANNOUNCED

PROJECT/BRANCH: RARITAN BAY, OLD BRIDGE & SAYREVILLE, NJ PREPARED BY: KURT ERLANDSON

PROTECTIVE STEP KEY STEPS IN HAZARDS SAFE WORK PROCEDURE CLOTHING AND NO. ACTIVITY EQUIPMENT

2. DIVE CURRENTS, NO DIVE TO BE PERFORMED IN CURRENT GREATER THAN 1 PROPER DIVE OPERATIONS EQUIPMENT, VHF RADIO, VESSEL TRAFFIC KNOT DIVE FINS, LOCK OUT NOTIFY VESSEL TRAFFIC OF DIVE OPERATION, MAINTAIN VESSEL WORK IS PERFORMED TAGS ON PROPER VHF COMMUNICATIONS, FLY DIVE FLAGS. DIVE OPS INSURE VESSEL IS LOCK OUT/TAGGED OUT OVERHEAD LIFTING FOLLOW SAFE DIVE PROCEDURES FALLING OBJECTS DO NOT SWIM AND/OR DIVE UNDER LIFTED OBJECTS RIGGING FAILURE ALWAYS KNOW WHAT IS OVERHEAD KEEP DIVER CLEAR OF OBSTRUCTIONS/RIGGING WHILE RAISING/LOWERING LOADS DIVER IS TO INSURE HOSE, HANDS AND OTHER EQUIPMENT IS CLEAR

WORKER INITIALS: ______

______(Previous editions are obsolete) Randive, Inc. of New Jersey 1160 STATE STREET, BLDG. 5A, PERTH AMBOY, NJ 08861 TEL: 732‐324‐1144 > FAX: 732‐324‐1555 DIVING CHART – AIR DATE:

NAME OF DIVER 1: DIVING APPARATUS: TYPE DRESS:

NAME OF DIVER 2 (STBY): DIVING APPARATUS: TYPE DRESS:

TENDERS (DIVER 1): TENDERS (DIVER 2):

LEFT SURFACE (LS): DEPTH (LSW): REACHED BOTTOM (RB): DESCENT TIME:

LEFT BOTTOM (LB): TOTAL BOTTOM TIME TABLE & SCHEDULE TIME TO FIRST STOP: (TBT): USED:

REACHED SURFACE TOTAL DECOMPRESSION TOTAL TIME OF DIVE REPETITIVE GROUP: (RS): TIME (TDT): (TTD):

DESCENT ASCENT DEPTH OF STOPS DECOMPRESSION TIME

10 WATER CHAMBER 20 30 40 50 60 70 80 90 100 110 120 130 PURPOSE OF DIVE: REMARKS:

DIVERS CONDITION: DIVE SUPERVISOR:

09/06 SUPERVISOR’S PRE DIVE CHECK LIST

PROJECT: ______DATE: ______

DIVE OBJECTIVE: ______SUPERVISOR: ______

PRE DIVE CHECK LIST

_____ DIVE PLAN REVIEWED _____ POWER SOURCE

_____ ACCIDENT MANAGEMENT PLAN _____ LIGHTS, AREA ILLUMINATION

_____ ACTIVITY HAZARDS ANALYSIS _____ ADEQUATE STAGING SPACE

_____ EMERGENCY COMMUNICATIONS TO EMS _____ CHANGING AREA

METHOD ______TOILET FACILITIES

VERIFIED BY ______NEAREST OPERATIONAL TELEPHONE

_____ DIVE TEAM MEMBER’S HEALTH _____ DIVE STATION SET-UP & CHECKED

_____ SAFE DIVER ENTRY / EXIT _____ DIVE BOAT / BARGE

METHOD ______STATIONARY MOORING ______

_____ DIVER EMERGENCY REMOVAL LIVE BOATING ______

METHOD ______SAFE WATER CONDITIONS

_____ WATER CONDITIONS WATER TEMPERATURE ______

AIR TEMPERATURE ______DIVE LOG READY FOR ENTRIES

_____ EQUIPMENT CHECKED FOR FUNCTIONALITY

_____ BREATHING TANKS CONTAIN SUFFICIENT AIR FOR TASKS ANTICIPATED

LOCK OUT/TAG OUT PERFORMED: _____ UNDERWATER EQUIPMENT _____ INTAKES _____ OUTFLOWS _____ STRUCTURES OTHER ______

DIVE SUPERVISOR:______SIGNATURE:______DIVER:______SIGNATURE:______TENDER:______SIGNATURE:______STAND-BY DIVER:______SIGNATURE:______

DIVING STATION CHECKLIST

DATE: ______JOB SITE: ______DIVE SUPERVISOR: ______

INT _____ COMPRESSOR/AIR BOTTLES COMMENTS/NOTES: _____ FLUIDS CHECKED/FILLED _____ POSITION & SECURE _____ START UP & VENT PER COCKS _____ CONNECT & BLOW-DOWN DECK WHIP (D/W) _____ CONNECT FILTER & BLOW-DOWN _____ CONNECT D/W, CO MONITOR & BLOW _____ H.P. BOTTLES FULL P.S.I.______INT _____ DIVE CONTROL STATION (DCS II) COMMENTS/NOTES: _____ POSITION & SECURE _____ EMERGENCY GAS PSI _____ PSI ______CONNECT D/W, UMBILICALS & BLOW-DOWN _____ CONNECT COMMUNICATION LEADS & HEADSET _____ CONNECT WIRELESS ANTENNA INT _____ SUPERLITE 17’S, 27’S, KMB’S, AGA’S, EXO’S COMMENTS/NOTES: ______CHECK NON-RETURN VALVES ______CONNECT UMBILICALS ______CHECK AIR FLOW (BAL/VENT/PURGE) ______CONNECT COMMUNICATION WIRES ______CHECK COMMUNICATION SEND/RECEIVE ______CHECK WIRELESS REMOTE INT _____ BAILOUT SYSTEM COMMENTS/NOTES: ______CONNECT REGULAR AND LP WHIPS ______PSI _____ PSI ______EGS FLOW TO HELMETS INT: _____ FINAL SYSTEM COMMENTS/NOTES: _____ ALL AIR FITTINGS TIGHTENED _____ AIR SUPPLY GAUGE PRESSURE COMP/DACS/EGS/GAILOUTS

STATION READY TO DIVE/DIVING SUPERVISOR’S SIGNATURE:

______

POST DIVE CHECK LIST

_____ U/W EQUIPMENT RECOVERED UNLOCK/UNTAG PERFORMED

_____ DIVER(S) OUT OF WATER _____ UNDERWATER EQUIPMENT

LEAD DIVER’S HEALTH (GOOD?) _____ INTAKES

______OUTFLOWS

2ND DIVER’S HEALTH (GOOD?) _____ STRUCTURES

______OTHER ______

_____ EQUIPMENT BREAK DOWN & SECURE _____ PROJECT RETURNED TO NORMAL OPS

WORK DOCUMENTATION:

____ DIVE LOGS COMPLETED

_____ ALL OTHER FORMS COMPLETED

_____ DEBRIEFING COMPLETED

PROJECT MANAGER NOTIFIED OF:

_____ DIVE OPERATIONS COMPLETED

_____ DIVE TEAM SECURED

_____ DIVE TEAM LEAVING PROJECT

FILE: PRE POST DIVE CHECK LIST

RanDive Attachment

Commercial Diving Safety Section

Chapter 6 Randive, Inc. Commercial Diving Operations Randive, Inc. has adopted this program for Safe Commercial Diving Operations for the protection of employees from the following OSHA regulations: §1910 Subpart T – Commercial Diving Operations 46 CFR U.S. Coast Guard Subchapter V – Marine OSHA Part §197 – Subpart B – Commercial Diving Operations Kurt Erlandson is designated as the Diving Superintendent and Competent Person in charge of all Commercial Diving Operations for Randive, Inc..  Each dive member will be qualified and have the training necessary to perform assigned tasks in a safe manner.  All dive team members will be trained in cardiopulmonary resuscitation (CPR) and First Aid (American Red Cross Standard Course or equivalent).  Randive, Inc. will maintain a current version of this Safe Practice Manual that is available to all dive team members and at each dive location.  A copy of OSHA §1910 Subpart T and U.S. Coast Guard Subchapter V – Marine OSHA Part §197 – Subpart B will be maintained as part of this manual along with Randive, Inc. policies for implementing the requirements of this standard.  The following safe practices will be included for each diving mode: . Safety procedures and checklists for diving operations. . Assignments and responsibilities of dive team members. . Equipment procedures and checklists. . Emergency procedures for fire, equipment failure, adverse environmental conditions, and medical illness & injury. Commercial Diving Safe Operations This Randive, Inc. Diving Safe Operations Manual applies to all underwater diving operations conducted by Randive, Inc. and its subsidiaries, and supersedes any and all previous operations manuals, safety manuals, or safety memos. It will be distributed to new employees upon hire and available at each dive site for reference purposes. Each member of each dive crew must keep in mind that no safety standard or set of rules will ever exist that will substitute for common sense, sound judgment, and a continuing concern for maximum safety. Safety is not a rulebook, but a state of mind. Further, it is not an individual state of mind but a single objective that must be shared by the entire dive crew. Safety teamwork will prevent accidents. Each member of the crew should continually be conscious of possible safety hazards from their viewpoint and report these to the Lead Diver or Supervisor. Time should always be taken to discuss the reported safety hazard with everyone involved or if possible, eliminate it before resuming the job at hand. Diving operations will be completed more efficiently when conducted in this manner.

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It must be understood that there will be times when compliance with the U.S. Coast Guard or these rules might cause unsafe conditions and deviation will be necessary. The supervisor‘s judgment will be the deciding factor. However, the reasons for any deviation should be properly logged. Preservative Acts – It is expressly provided and declared that in an emergency situation requiring the saving of personnel, any diving company, its officers, directors, agents, or employees may act in variance with the operating procedures and recommendations established in these standard. Responsibilities of Dive Crew Members There is no standard size dive crew, as personnel requirements change between different types of jobs and will even vary on projects of the same type depending on depth, pipeline size, depth of cover, and numerous other variables. Special Note: The Director of OSHA Maritime Safety Standards, Larry Liberatore, gives the following official interpretation of OSHA’s Commercial Diving standards (29 CFR §1910 Subpart T) regarding the minimum number of dive team members required to support air dives using scuba equipment and surface-supplied diving equipment. In establishing the required number of dive team members required for a particular situation, proper consideration must be given to §1910.421(d) – “Planning Assessment”, §1910.421(e) – Hazardous Activities”, and §1910.422(a)(3) which requires providing a means to assist an injured diver from the water or into a bell. Commercial scuba air diving requires a minimum of 3 dive team members as follows: The Designated Person-In-Charge (DPIC) sometimes referred to as the diving supervisor [§1910.410(c)], the Stand-By Diver [§1910.424(c)(1)], and the Line-Tended Diver [§1910.424(c)(2)]. The Stand-By Diver can be the DPIC provided he/she is a qualified diver and that the third dive team member is trained and capable of performing all necessary functions of the DPIC while the DPIC is in the water as the Stand-By Diver. The Stand-By Diver can also be the Tender provided he/she is a qualified diver; in this case, the DPIC would assume tending duties when the Stand-By Diver is in the water. Commercial surface-supplied air diving requires a minimum of three (3) dive team members as follows: Designated Person-In-Charge (DPIC) sometimes referred to as the diving supervisor [§1910.410 (c)], and a diver who “shall be continuously tended (by a tender) while in the water” [§1910.425(c)(1)]. For surface-supplied air diving which is 100 feet or less and does not involve scheduled decompression, a Stand-By Diver is not a specified requirement for all dives. Also, based upon the requirements of §1910.421(d), “Planning and Assessment”, the hazard analysis/assessment of the dive may dictate the use of a Stand-By Diver even though not specifically required (e.g., underwater debris, suctions, no free access to the surface, possibility of diver entanglement, or unknown bottom conditions).

Job Classifications for Air and Gas Surface Diving Diving Superintendent or Supervisor Air and Gas Safety Coordinator Air and Gas Life Support Technician (Rack Operator) Gas Only Diver Air and Gas Lead Tender Air and Gas Tender Air and Gas Sat Tech Air and Gas

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Jobs that are not complex in nature or are in shallow water will have fewer of the listed classifications present than will deeper or more complex projects. Whenever any of the listed job classifications are not present on a job, the responsibilities of the missing personnel must be shared by those present using the following guidelines. Assumption of Responsibilities Size of Crew Job Classification Present Job Classification Assumed P Senior Diver P Diving Supervisor and Diver Two Divers, One Tender P Second Diver P Diver P Tender P Lead Tender and Tender P Senior Diver P Diving Supervisor and Diver P Second Diver P Diver Two Divers, Two Tenders P Senior Tender P Lead Tender P Second Tender P Tender General Responsibilities of All Crew Members Regardless of job classification on a Randive, Inc. operation, each crew member has the following general responsibilities.  Remain Drug Free on the Job: Every member of the crew has the right to know that their personal safety is not being jeopardized by a fellow crew member whose performance might be influenced by mind altering chemicals or drugs. Each employee will read, understand and sign the company drug policy before commencing work.  Take and Pass a Physical Exam: Every Supervisor, Diver, and Tender will take a standard diver‘s physical examination upon employment and annually thereafter. This is found in the ADC consensus standard and will be enforced.  Know your Responsibilities: Each employee will read and completely understand their responsibilities as outlined below and in the following sections of this manual. You will fulfill these responsibilities properly to protect everyone‘s safety.  Know U.S. Coast Guard Regulations: Each employee will read the United States Coast Guard regulations on Commercial Diving Operations and basically understand its content. These regulations should not be deviated from unless the Supervisor deems following the regulations endangers crew safety. In such cases, the reasons given for the deviation should be well documented in the daily log.  Attend Safety Meetings: Each employee is responsible for attending the safety meeting prior to the start up of every job and each work shift.  Conduct Yourself in a Safe Manner: Each employee will comply with the policy on Safe Behavior and adopt a safety conscious attitude. Statistics prove that more than 80% of all accidents are caused by unsafe acts, and the other 20% are caused by unsafe conditions. If this is correct, then the development of a safety conscious attitude by everyone can have a significant positive effect on reducing injuries. Look for problems and eliminate them before someone gets hurt. Do JSA on the tasks the next diver down will do to warn him of potential dangers. Report the on-bottom situation to the Supervisor, emphasizing what could cause a problem or accident; use warnings such as ―watch out for,‖ ―be careful of,‖ ―think about,‖ etc., to show you have developed a safety conscious attitude and 6-3

are taking a leadership role in injury prevention. By doing so, your crew will minimize injuries. It does not matter if you are the most experienced Superintendent or the least experienced Tender, creating and maintaining a safe working environment is your responsibility.  Know Your Surroundings: Each employee has the responsibility to be aware of surrounding work activities and to report any unsafe condition immediately to the supervisor.  Follow Clothing and PPE Policy: Each crewmember will read, understand, and comply with the Clothing Requirement Policy and Personal Protective Equipment Policy.  Report Potential Problems: It is the responsibility of each employee when reporting to work to advise his immediate supervisor of any condition (personal or otherwise) that may keep the employee from performing tasks in a safe and efficient manner.  Shut Down Jobs When Necessary: All employees have the ability to shut down a job due to unsafe equipment, acts or conditions. Knowledge and experience should be used to manage risks down to the lowest acceptable levels prior to shutting down a job due to unsafe acts or conditions. Employee Conduct The following rules of personal conduct are necessary for the protection of employees and the good of the job. These rules will apply when going to, coming from and/or on a company facility and/or job site. If an employee willfully violates any of the following rules, they will be subject to dismissal. Rules of Conduct  The use of alcohol or unauthorized drugs is strictly prohibited.  Horseplay is not permitted and will not be tolerated.  Immediately report any job-related injury or suspected injury to your supervisor regardless of how minor it may appear. Any illness that may affect job performance or safety must also be reported.  Each employee shall personally cooperate with and follow the Safety Program. Clothing Requirements In order to perform your work safely, it is a requirement to dress in a manner conducive to the job you are performing. It is important that you adhere to the following:  Long pants shall be worn at all times.  Shirts, which cover the shoulders, shall be worn at all times.  Do not wear clothing or other items that could be caught in machinery, equipment, or otherwise cause an accident, such as: jewelry, dragging pant cuffs, and torn or loose long sleeves.  Hair shall be kept trimmed to a length that is conducive to wearing hard hats and not causing a hazard while working with machinery or equipment.  Beards will be kept short when an employee‘s job requires that he receive medical oxygen through an oral mask or when an oral nasal seal is required to exclude ambient gases that may be hazardous or poisonous at a work location. Mustaches and beards that do not preclude making an oral nasal seal are permitted provided that no petroleum-based products are applied to the area.

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Personal Protective Equipment Many accidents resulting in injury to personnel have occurred because personal protective equipment, although available, has not been utilized. Randive, Inc.’s intent, with your cooperation, is to eliminate these types of injuries. To achieve this end, personal protective equipment shall be worn by all employees; there will be no exceptions. A passive attitude towards safety could cause you or a co-worker serious injury or death. You are required to adhere to the following safety rules or risk the possibility of discipline, up to and including termination. During work or travel time, Randive, Inc. personnel are required to wear appropriate protective equipment. 1. Hard hats that meet ANSI Z89.1 specifications shall be worn at all times while on company owned, leased, or rented property, including customer or vendor properties or facilities. The only exceptions are when you are in designated safe areas, living, eating, berthing, lavatory, office facilities or covered area in which cranes, forklifts, or other overhead lifting activities are not taking place. 2. Steel-toed shoes that meet ANSI Z41 specifications shall be worn at all times while on company owned, leased, or rented property, including customer or vendor properties or facilities. The only exceptions are while you are in designated safe areas, berthing, living, eating, bathing, or office facilities. Visitors and employees not actually involved in daily operations are not required to wear safety shoes while on-shore. 3. Personal floatation device (work vest) that meets the requirements of 33 CFR 146.20 or equivalent shall be taken to the work place by the employee working on a location near or around water. This includes, but is not limited to, getting on, off or crossing between boats, barges, docks or platforms; while tending a Diver; and painting or blasting over the side. The only exception is when an individual is using a safety belt or line as described in 33 CFR 142.42. 4. Eye Protection that meets ANSI Z87.1 requirements shall be taken to the work place and worn when circumstances require or when instructed by safety or supervisory personnel to do so. Specific eye protection must be worn when engaged in welding, cutting, burning, and grinding activities. When an individual is not sure what eye protection is required, check with the Safety Coordinator or supervisory personnel. 5. Diver equipment supplied by the employee shall at all times be fully operational and function in a safe and efficient manner. No modifications may be made to any diving equipment unless permission has been granted in writing by the Company Diving Operations Department. Responsibilities of the Diving Supervisor (Air or Gas) 1. Act as the Company on-site representative and assume full responsibility for the safe and efficient completion of the diving operation. 2. Assist the bidding departments when required in developing bids for upcoming work.

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3. Attend pre-job meetings as directed by the Operations Department and advise participants of any potential safety or operational problems. 4. When practical, direct the testing and loading of equipment for the job. Ensure all items that are required for safe, efficient operations are present and in good working order. 5. Double check the load to see if everything is bound securely, when applicable. 6. Direct the placement and securing of the equipment on the boat or barge with regard to ease of operations and safety. Place diving air compressor intakes away from exhaust, aim jet pump discharge fittings away from life support equipment, etc. 7. Coordinate diving operations with the customer‘s representative and contractors/subcontractors. Receive and give instructions as required for a safe, efficient project. 8. Instruct divers to report any illness or unusual fatigue prior to making a dive and any post-dive symptoms that might indicate decompression sickness. Remove any diver from the rotation until the problem is corrected and call for a replacement. 9. Before each dive, ensure that the proper Standby Diver(s) is in position, dressed and ready to step in as the situation dictates. 10. Inform the entire dive crew of the scope of work to be performed during the diving project and any possible safety traps or hazards, as required in the U.S. Coast Guard Regulations. Use drawings and specifications where available, and invite crew participation when applicable. This requirement can be undertaken during the boat run out or at a pre-dive safety meeting. 11. Make the decision on when it becomes unsafe to dive as a result of surface vessel movement, weather, sea conditions, current or any other condition. The Dive Supervisor is the only person, through direct communication, to instruct Captain to start the main engine. 12. Inspect third party or customer-provided boats to ensure that there are operational kill switches in the immediate vicinity of the boat operator. 13. Ensure that lockout tags are placed on throttle and engine controls prior to conducting dive operations as appropriate. 14. Ensure that all pre-dive checks of communications, personal gear, non-returns, etc. are completed and, when deemed necessary, that the Diver has bail out equipment. 15. Maintain a Daily Log on the events of each day, recording the time of each event; each dive and progress made; important communications with customer, contractors, third-party, personnel; etc. 16. Ensure that all other required paperwork is completed accurately. The required forms to be completed are: Daily Time Sheet and Dive sheets, required for each dive. 17. Notify the office anytime there is a near miss or injury on the job. 18. Perform on-job-site neurological examination in suspected bends cases and decide when to treat. Ensure the decompression schedule has been established. 19. Ensure surface interval times are properly maintained within the Air or Gas table rules. 20. Require compliance with: Responsibilities of the Dive Crew, Rules of Safe Behavior, and Clothing and Personal Protective Equipment requirements. See appropriate section of this manual for details.

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21. Preside over offshore safety meetings and record meetings in Daily Log. Assist the Supervisor in coordinating aspects of safe actions and activities with other operating parties at the job site. 22. Manage the JSA‘s, including reading the safety procedures as outlined in the JSA as it applies to each type of underwater function the Diver(s) will undertake. This should be done periodically if each dive is similar and daily or prior to each dive if a project calls for a number of dives with dissimilar work or new activities. The idea is to review the potential safety traps with each Diver just prior to each dive. While this procedure may get repetitive, it gives the Diver the experience of veteran Supervisors and Divers just before making the dive. Using the JSA is not a request. 23. When a new type of underwater activity is being undertaken and no JSA has been written, get together with supervisors and older Divers to write one. Consider all the possible hazards, and how to avoid each. Submit the new procedure to the Diving Operations Manager at the completion of the job so it can be included into the overall plan. Responsibilities of the Safety Coordinator So the Supervisor can focus on operational matters, as much of the safety function as possible will be transferred to the Safety Coordinator, but the Supervisor retains overall responsibility. 1. Complete all safety-oriented paperwork required on the job. This paperwork includes: . Accident Injury Form – used any time there is an injury. . Supervisor‘s Accident Investigation/Near Miss Report – used any time there is an incident. . Bends Call In and Hyperbaric Investigation Report – used with each bends occurrence. . Diving Bends Treatment and Neurological Exam Report – used with each bends occurrence. 2. Be completely familiar with the U.S. Coast Guard Regulations, this Operations Manual and all procedures, and the U.S. Navy Diving Manual. Responsibilities of the Life Support Technician/Rack Operator (Gas Jobs Only) The Life Support Technician reports directly to the Diving Supervisor or their direct representative, and shall conduct such operations as directed. The Supervisor may assign a diver to perform duties as he finds suitable. 1. Ensure that sufficient quantities of the proper gas mixtures are available and valve positions checked to safely conduct diving operations and for emergency treatment. 2. Order gas in sufficient time to prevent a termination of diving operations while waiting for gas. 3. Accurately monitor diver time, beginning when the Diver leaves the surface and continuing until they reach the surface, including in-water decompression and deck chamber decompression. This includes specifically monitoring the Diver‘s surface interval to ensure that it does not exceed five (5) minutes. 4. Maintain the correct supply gas over pressure for depth and helmet. 5. Follow all tables correctly and accurately, unless instructed by operations. 6. Immediately report to the Dive Supervisor and/or Safety Coordinator such conditions, either noticed or reported, that are unsafe or may be hazardous.

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7. Record gas consumption data after each dive and maintain a daily inventory of all breathing gas available at the dive site. 8. Record all dive activity during the dives and maintain complete dive log for each gas dive conducted in accurate, legible, through records. Responsibilities of the Diver 1. Perform all tasks, underwater and topside, in a safe, efficient manner under the direction of the dive supervisor, following all tables unless otherwise instructed by the Operations Supervisor. 2. Ensure any personal equipment provided by you or the company is in good working condition, has been tested, and is ready for use prior to each dive. 3. As required, assist in the set up, maintenance and repair of all diving equipment on the job. Hat inspections must be conducted annually. 4. Immediately obey all commands or signals to return to the surface, first decompression stop or bell that are provided by the Dive Supervisor or their representative. 5. Act as Standby Diver as required (see the Responsibilities of the Standby Diver detailed in this manual), Rack Operator in rotation and Chamber Operator as required. 6. The Diver will maintain the correct supply gas over pressure for depth and helmet as well as an accurate and complete dive log for each gas dive conducted. 7. Report the exact condition of the work site to the Diving Supervisor, looking for and reporting any safety hazard that might exist. 8. Report to the Supervisor prior to the dive any physical problem or illness, including excess fatigue, that might affect efficiency or safety. You do not have to dive if you feel physically and/or mentally unable to complete the dive safely. Unreported problems or illnesses imply that the Diver is physically and mentally capable of making the dive. 9. Take pre-employment and annual standard diver‘s physical examinations as required by the ADC Consensus Standard. The Diver‘s must call the office to schedule the physical. 10. Understand the overall project or operational plan to ensure safe and efficient actions. 11. Ensure that the deepest depth of the dive has been established before ascent and wear a bail out bottle or at least 50 cuff composites. 12. Immediately report any possible bend symptom, regardless of how slight. Decompression sickness is 100% curable if treated within the first few minutes of occurrence. It is better to treat 100 non-bends than to wait to treat a real bend. WHEN IN DOUBT – TREAT BEND SYMPTOMS. 13. Make a timely transition into the decompression chamber within the prescribed time limit: 5 minutes from last stop to depth in chamber. Remain AWAKE in the vicinity of the decompression chamber for at least 1 hour after dive, decompression or treatment. 14. Report conditions that occur during the course of the dive, including extreme cold, hard work/fatigue. 15. Review the Dive Sheets within the calendar day of the dive to ensure correctness, reporting any discrepancies to the Supervisor and signing the dive sheet after review. 16. Exercise extra caution when using power tools; use safety goggles, gloves, proper grounded plug, etc.

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17. Recognize that the use of drugs or alcohol represents a major safety hazard to everyone on board. For the safety of all on board, report all observed or suspected substance abuse to the Dive Supervisor. 18. Flying After Diving . Remain at sea level for a minimum of 2 hours prior to flying. . Do not fly for a minimum of 6 hours after any mixed-gas dives. . Notify for a minimum of 12 hours after a saturation exposure. . If emergency treatment is needed ashore, the aircraft should fly at an altitude of 500 feet or less. 19. Divers are required to wear a minimum of 50 cu. Ft. bailout bottle at all times during diving operations. All bailout will be worn with a brass quick disconnect model #AMFLO CP20B with female connection on the diving helmet. 20. All knives will be pointless, containing a serrated sheep foot and locking blade. Divers are responsible to read and practice safe knife practices at all times. Responsibilities of the Standby Diver 1. Be in the dive station facility, remain abreast of events as they happen and dress to allow quick entry into the water and stay at depth as long as required. 2. Remain at appointed station throughout the dive and in-water decompression, ready to do a quick turn around to maximize dive-crew performance. 3. Consider possible emergency situations and know what actions to take in response to each possibility. 4. Check equipment before the dive to ensure it is functioning correctly and is ready to dive immediately. Instruct the tender of any hazards. 5. The Standby Diver will visually check: . The dive hose(s). . Diver ladder to ensure it is safely positioned and secured. . The bell or stage lifting equipment to ensure it is properly secured, the wire rope is in good condition, and the onboard gas supply is properly connected. Responsibilities of the Lead Tender 1. Report directly to the Diving Supervisor. 2. Assemble and load equipment assigned to the job, ensuring the load out is complete, equipment is run and/or tested, and tie downs on the truck and vessel are double checked. 3. Ensure the chamber, volume tanks and gas cylinders to be taken on the job are in certification and gauges have been recalibrated within the last 6 months, per regulations. 4. Function as a diver trainee when instructed to do so. In this situation, the Lead Tender will assume the responsibilities of a Diver. 5. Ensure all tools sent to the Diver are in safe and proper working order. 6. Manage all communications between the Diving Supervisor and the Tending crew. 7. Assist in safely positioning equipment on deck and ensuring it is secured properly. 8. Conduct an inspection and inventory of the breathing gas supply (this is to be done by the Life Support Technician on gas jobs). 9. Oversee the testing of hats to include communications and non-return valves. 10. Check the chamber pop-off valves.

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11. Ensure the dive station is set up at the correct location to view the work site. 12. Conduct a visual check on the deck whips to see that they are protected. 13. Make sure mechanical/equipment problems are red tagged at job completion. Include an explanation of the problem and have the Lead Tender sign/date. If possible, discuss the problem with repair personnel so there is no misunderstanding. REMEMBER, the fastest way to get into trouble with the customer is to send out a piece of equipment that does not work. Red tag all equipment problems so the item is not sent out on another job. Responsibilities of the Tender 1. Take pre-employment and annual standard diver‘s physical examinations as required by ADC Consensus Standard and Randive, Inc. Policy. 2. Set up and operate all equipment as directed by the Lead Tender, Diving Supervisor or their representative. 3. Perform routine maintenance on diving and diving-related equipment. 4. Assist in topside work as required or directed. 5. Immediately report to the Diving Supervisor and/or Safety Coordinator any conditions noticed or brought to their attention that are or may be unsafe. 6. Constantly tend a surface diver, taking in or paying out umbilical, transmitting and receiving signals as directed or required, and remaining alert for any unusual or potentially hazardous circumstances. 7. Properly operate the decompression chamber for decompression or treatment:

. Maintaining and ―O2 clean‖ chamber, totally free of oil and grease. . Maintaining the proper pressure (depth) in the chamber.

. Maintaining a proper ventilation schedule so the O2 and CO2 levels remain within safe limits. . Decompressing the divers in accordance with the proper schedule. . Maintaining communications and visual contact with chamber occupants. . Properly filling out the dive sheet, recording times of depth or gas change, and initiating as required. Return dive sheet to the Rack Operator/Safety Coordinator when decompression is complete. . When required, riding the chamber with divers during decompression or treatment; this requires being familiar with and alert for the symptoms of oxygen toxicity. . Never leaving chamber unattended while occupied or when blowing down for the next dive. . Washing with fresh water/soap or steam cleaning the equipment upon demobilization of the job.

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Responsibilities of the Vessel Captain The Master is in overall command of the ship and its crew. The Master is the onboard representative for the ship owners and the Operations Department. He/she has, under international law and the law of the flag state, ultimate responsibility for the safety of the ship and all personnel onboard. In this capacity he/she is authorized to take necessary steps to ensure safety regulations as well as international flag state and port state laws are upheld. The Master makes the ship and its services onboard available to the charterer of the ship, represented by charterer‘s nominated responsible person (onboard). He/she will provide all reasonable and lawful services within the safe operational capacity of the ship in lawful compliance with the agreement between Operations and the charterer of the ship, and shall in that capacity play an active and positive role in the interaction between two parties onboard. 1. Ensure the safe navigation and lawful, safe operation of the vessel and all personnel onboard and make sure safety regulations & precautions are upheld. 2. Perform draft and stability calculations. 3. Provide the services of the ship and its crew to the Offshore Manager and assist in the timely execution of his/her project(s). 4. Implement and maintain compliance with applicable parts of the Company Safety Programs and disseminate applicable parts throughout the ship. 5. Undertake regular inspection and testing of all safety and alarm equipment. 6. Hold regular and effective safety meetings as well as fire, abandon ship and man overboard drills; meetings should be documented in the Log and accidents/safety problems reported to management. 7. Ensure diving personnel adhere to shipboard safety rules as well as regulations outlined in 46 CFR 197.402 (diving operations). 8. Enable safe loading and storage of cargo and equipment, not sailing until it is safe to do so. 9. Ensure hot work permits are issued prior to burning or welding aboard vessel and burning or welding do not take place in the area of fuel tanks, lube oil tanks, or flammable cargo. 10. Do not allow anyone to enter any tank or confined space without having first ensured that a competent person has determined that the tank is safe for entry. 11. Exercise extra caution and train the crew to the additional risks involved in mooring or unmooring to a platform, rig, buoy, or dock; loading and unloading cargo and equipment; and using mooring lines, power tools, electricity, winches and lifting equipment. 12. Require that all hands, including you, observe all warning signs such as: NO SMOKING, ELECTRICAL HAZARD, HARD HAT AREA, etc. 13. Require all hands bring to work and use hard hats, work vests, safety shoes, and goggles. 14. Know the location/condition of all safety equipment and train the crew in proper use of this equipment. 15. Turn in properly completed injury and near miss reports in a timely manner. 16. Ensure that a proper wheel or anchor and radio watch is maintained at all times and that if not underway the vessel is safely moored or anchored. The vessel must never be left unattended without specific approval from the Operations Manager. 17. Ensure that the crew wear clothing and protective gear appropriate to the job at hand, e.g., gloves, ear protection, welding jacket, etc.

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18. Oversee the safe and proper loading and transfer of fuel or hazardous materials. Display proper signals, lights, etc. 19. Ensure that lockout tags are placed on the engine controls and throttles prior to allowing dive operations to be conducted. 20. Know and understand your duties in the event of an emergency, ensure the rest of the crew knows theirs, and have a sound understanding of basic first aid. 21. Do not try to do or lift something you feel is not safe; get help first. 22. Exercise extra caution when using power tools, e.g., use safety goggles and gloves, ensure properly grounded plug, ground fault interrupters, etc. 23. Consider the effects of actions on the divers, especially when Divers are in the water. 24. Recognize that the use of drugs or alcohol represents a major safety hazard to everyone on board. For the safety of all on board, report all observed or suspected substance abuse to the Operations Manager. 25. Issue appropriate orders in a clear, concise manner and verify that specific requirements are observed. 26. Review and enforce onboard contingency plans, vessel procedures relating to the Safety Programs and pollution prevention activities and report any deficiencies to the DPA. 27. Ensure that defects are reported to Company management. 28. Appraise and coordinate onboard training requirements with the Company. 29. Assign roles to senior officers with respect to the Safety Programs. 30. Report non-conformities, incidents, and hazardous occurrences involving personnel or equipment to the Company. 31. Ensure that all documentation designated as controlled is up to date and maintained aboard the vessel per Company procedures. 32. Request assistance from the Company as may be deemed necessary to ensure safe and pollution-free operation of the vessel. 33. Ensure that all relevant records, as defined in procedures, are available and up- to-date. 34. Make sure vessel certificates and class are up-to-date. 35. Handle requisitions, purchasing and control of spares and services. The Master is the only person that can notify the engineer to start the main engine. 36. Ensure that the dive station(s) is set up properly and that the principals of good housekeeping are established and maintained. No unnecessary items or systems should be left in the immediate dive station area. Unused equipment should be removed from the immediate area or be stowed. Oil or chemicals anywhere on or near the job site that could cause a fall should be cleaned up and eliminated. Responsibilities of the Vessel Engineer 1. Make sure the vessel‘s machinery and machinery spaces are maintained in a safe operating condition. 2. Advise the Captain of any machinery condition or potential condition that could adversely affect vessel operations. 3. Maintain ballast and trim in strict accordance with the Captain‘s requirements. 4. Maintain adequate stocks of fuel, water, and filters. 5. Advise divers of any problems observed with equipment and provide assistance to correct problems.

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6. Never remove lockout tags or start the main engine without first obtaining permission from the Captain. 7. Never enter a tank or confined space without first obtaining permission from the Captain and having a second person present to act as safety watchman. 8. Point out unsafe conditions or practices to persons involved; report to the Captain any problems that are not resolved or when in doubt about any safety matter. 9. Know the location and proper uses of all safety equipment onboard. 10. Test the machinery alarms, emergency shutdowns and bilge alarms on a regular weekly basis and report their condition to the Captain. 11. Use the proper precautions and procedures during the loading and transfer of fuel and hazardous materials. Display proper signals, etc. 12. Do not permit burning or welding to take place in the area of fuel tanks or flammable cargo and issue hot work permits in the Captain‘s absence. 13. Bring to work and use your hard hat, work vest, safety shoes, and safety goggles as well as wear clothing and protective gear appropriate for the job, e.g., ear protection, gloves, etc. 14. Do not try to do or lift something you feel is not safe; get help first. 15. In the event of an emergency, pass non-critical work to others and request assistance before becoming immersed in trying to solve the problem. 16. Exercise extra caution and alert the crew to the risks involved in mooring and unmooring to a platform, rig, buoy, or dock and in loading and unloading cargo and equipment. 17. Know and understand your duties in the event of an emergency and know basic first aid. 18. Exercise caution when using power tools, e.g., use safety goggles and gloves as well as make sure the plug is properly grounded, etc. 19. Recognize that the use of drugs or alcohol represents a major safety hazard to everyone on board, not just yourself. For the safety of all on board report all observed/suspected substance abuse. Responsibilities of the Vessel Cook 1. Keep the galley and crew areas clean and free of slip and trip hazards. 2. Never serve or allow access to any tainted food; all such items must be properly disposed of. 3. Point out unsafe conditions and practices to persons involved; report to the Captain if problems are not resolved. Advise the Captain of any observed safety hazards. 4. Plan meals taking the weather into account, and adjust the level of liquids used in cooking to prevent spillage during rough seas. 5. Avoid grease fires by properly cleaning the galley range and maintaining appropriate liquid levels during cooking. If a fire occurs, it should be

extinguished with a dry chemical or CO2 fire extinguisher, not water. 6. Use appropriate devices for opening containers and handling hot containers. 7. Report any electrical problems with appliances to the Captain and Engineer as soon as they develop. 8. Know and understand your duties in the event of an emergency. 9. Know and understand shipboard safety rules and basic first aid. 10. Avoid doing or lifting something that seems unsafe; get help first. 11. Be alert for the safety of others as well as yourself.

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12. Never enter a tank or confined space without first obtaining permission from the Captain and having a second person present to act as Safety Watchman. 13. Recognize that drugs and alcohol represent a major safety hazard to everyone. For the safety of all, report all observed or suspected substance abuse to the Operations Manager. Responsibilities of the Ordinary Seaman 1. Keep decks and crew areas free of slip and trip hazards, ensuring the safe and proper stowage of deck supplies, paint and flammables, tie down chains and mooring lines. 2. Install safety lines across all openings in the vessel‘s bulwarks upon getting underway. 3. Do not work over the side without a work vest. 4. Advise the Captain of any observed safety hazards or when in doubt about a safety matter. 5. Do not enter a tank or confined space without first obtaining permission from the Captain and having a second person present to act as safety watchman. 6. Exercise caution when using power tools, e.g., use safety goggles and gloves, and ensure properly grounded plug, etc. 7. Consider the effects your actions may have on dive activities, in particular the diver in the water. 8. Know and understand your duties in the event of an emergency. 9. Know and understand shipboard safety rules and basic first aid. 10. Assist ship cook in galley duties, when necessary. 11. Bring to work and use hard hat, work vest, safety shoes, and safety goggles, and wear clothing and protective gear appropriate to the job at hand, e.g., ear protectors, gloves, etc. 12. Contact the Captain whenever in doubt about anything safety related. 13. Do not lift something you feels is not safe; get help first. 14. In the event of an emergency, pass the word to others and request assistance before becoming immersed in solving the problem. 15. Be responsible for pointing out unsafe conditions and practices to persons involved. Report to the Captain if the problems are not resolved. 16. Recognize that the use of drugs or alcohol represents a major safety hazard to everyone onboard. For the safety of all onboard, report all observed or suspected substance abuse to the Operations Manager. Safety Rules Rules Concerning Surface Air Diving Operations The following rules must be observed on all live-boat dives unless otherwise instructed to do so; deviations must be documented in the daily logbook. Surface air diving is limited to 220 fsw for dives with bottom times of less than 30 minutes or to 190 fsw for dives with bottom time in excess of 30 minutes.

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Chamber Procedure

 All dives made on the 100-foot SUR ―D‖ O2 decompression table (or deeper) that require chamber decompression should use the following schedule. Time Depth Medium

10 min. 50 feet O2 5 min. 50 feet to 40 feet O2

Then commence normal decompression time according to surface O2 decompression table.  Observe an 8-minute ascent time from 40 feet in the chamber to the surface.  Repetitive diving is not allowed on dives deeper than 170 foot.  Vent chamber 1 minute out of 5 minutes when using overboard dump mask. Vent chamber 2 minutes out of 5 minutes when no overboard dump mask is available.  When using U.S. Navy Air Tables for 130 feet, 140 feet and 150 feet, decompress Diver on the next greater decompression time schedule for repetitive diving and use actual repetitive group designation letter. Example: A dive is made to 125 ft. for 25 minutes; decompress on the 130 ft. schedule on the 40-minute table.  There is a minimum 4-hour surface interval requirement between ―0‖ dives.  If a Diver makes 2 ―0‖ dives in any given 12-hour period, a 12-hour surface interval is required. Repetting-Up Procedure  A Diver cannot repet up once he has reached the repetitive group ―0‖ designation.  When repetting up, the Diver must come up at least 33 feet before obtaining a new repetitive group letter.  When repetting up, bottom time for the new level starts when the Diver leaves his last level.  Travel rate between repet-up levels is 25 feet per minute.  A Diver is not allowed to repet up from a depth where decompression is required to a depth where decompression is not required.  Each Diver must be continuously tended while in the water.  When making a penetration into any pipe, hatch, piling, ditch, etc. where restricted from immediate access to the surface, the Diver will be tended by a second Diver at the point of entry.  Deep Air Equipment is required on all diving operations in excess of 40 fsw.  In the event a chamber is not available in excess of 40 fsw and no greater than 120 fsw, a dive can be made using 80% of a no decompression dive.  A bailout system is required for all dives in excess of 5 fsw and on all ―live boat‖ dives.  For diving conducted at altitudes significantly above sea level, appropriate decompression schedules must be acquired from Operations for specific elevation.  A stage is to be used on air dives in excess of 130 fsw, unless liveboating.

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 When the air water gap is 20 ft. or more, a second stage is required or a suitable substitute must be rigged and ready for immediate use by the Standby Diver.  A Standby Diver must be dressed and ready to assist each Diver in the water. If two Divers are working in close proximity, they may be each other‘s standby, but a Standby Diver will be dressed out topside.  No recreational swimming or diving at any diving job location will be allowed.

 Upon completion of O2 decompression in the chamber both the Divers‘ and Tender‘ O2 shut off valves must be closed.  When wet suits are worn in the chamber outer lock (to stay within the allotted surface interval) care must be taken to keep the chamber as clean as possible,

as O2 under pressure represents a fire hazard. Divers must take their wet suits off in the outer lock before entering the inner lock.

 A Tender will be required to ride the chamber with the Diver whenever O2 is used in excess of 50 ft., should carry a tongue depressor and be knowledgeable

in symptoms of O2 poisoning.  Divers should not cut any lines or cables until they are sure of their purpose and where they lead.  When decompressing in the water, the Diver should make every effort to change positions frequently so as not to impede the blood flow to any area of the body. For example, holding onto a ladder rung by the crook of the arm without changing position, may later result in bends in that arm, shoulder or elbow.  While decompressing in the chamber, the following will reduce the possibility of bends: . Gently move your arms and legs every few minutes to allow proper blood flow;

. Use the elastic band to hold the O2 mask rather than your hand which requires your arm to be bent for long periods of time, constricting blood flow; . Take deep breaths every two to three minutes to expand your ribcage; . Relax, stay awake and breathe normally.  Divers should keep themselves and their hoses clear at all times while working in the water and develop a sense of hose awareness, always knowing if their hose is through or around an object.  A Diver completing a bend treatment with non-serious symptoms will not be allowed to dive for 24 hours.  After completing a Type 2 bends treatment divers will not be allowed to dive until examination by a diving physician.

 The Diver must go on O2 immediately upon entering the decompression chamber.  Dives should not extend beyond Group ―O‖ unless under emergency conditions. If conditions require a change in this procedure for one last dive or other operational or safety reason, the Supervisor can direct the Diver and note the reasons in the records of the dive operations.

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 When working up a riser, platform or when setting anodes, the Divers‘ group shall not be allowed beyond an ―O‖ group. Once maximum time for an ―O‖ group has been reached, the dive should be terminated and decompression started for the maximum decompression exposure.  Know decompression limits for no-decompression air dives when a decompression chamber is unavailable. A maximum of 80% of the ―no- decompression limit‖ is to be used. No repetitive diving allowed. Rules Concerning Live Boat Diving The following rules must be observed on all live-boat dives unless otherwise instructed to do so; deviations must be documented in the daily logbook.  Live boat diving shall not be conducted when sea conditions impede the station keeping track of the boat.  Live boat operations are to be conducted during daylight hours only.  The propellers of the vessel are to be stopped before the Diver enters the water and while the Diver exits the water.  Live boat diving is not to be conducted below 220 fsw or during periods of fog, heavy rain or other cases of restricted visibility.  During live boat diving operations a Tender will be used to constantly monitor and remove slack in the hose as a means to prevent the Diver‘s hose from becoming entangled in the boat‘s wheel.  Each live boat Diver will wear bailout equipment regardless of the depth of the dive.  A Standby Diver will always be dressed and ready while the Diver is in the water.  No live-boat dive should have in-water decompression of more than 120 minutes unless caused by an emergency condition.  The minimum crew for live boat operations is one (1) Supervisor.  The vessel to be employed in live-boat diving must have operational ―kill switches‖ located in easy access of the Vessel Captain while operating the vessel. Rules Concerning Mixed Gas Diving The following rules must be observed on all mixed-gas dives unless otherwise instructed to do so; deviations must be documented in the daily logbook.  A diving stage is to be used for all mixed gas dives to 220 fsw.  Below 220 fsw or when in-water decompression exceeds 120 minutes, an ambient bell is required. This requirement is waived if the bell must be lowered into a ―physically confining space‖ such as a platform.  A closed bell system is required for dives deeper than 300 fsw with the same ―physically confining space‖ limitation as stated above.  A dressed-in Standby Diver and a Tender is required for every Diver in the water.  A surface Standby Diver must be available to recover a closed or saturation bell if necessary.  A Standby Diver must be available in the bell during all closed bell operations to assist the working Diver.  A bailout bottle must be worn on all gas dives and must be filled with the same mixture the Diver is breathing on the bottom. 6-17

Surface-Supplied Mixed-Gas Tables (―50/50‖ Table) NOTE: This table is calculated for use with 86/14 helium/oxygen bottom mix. The depth indicates the actual depth of the dive, not the partial pressure of the gases. Bottom times appear across the top and range from 5 to 120 mins. Gases: 1. Bottom mix is 14% oxygen (+/-1%) balance helium. 2. Decompression mix is 50% oxygen (+/-2%) balance nitrogen. 3. Chamber breathing gas is 100% oxygen. 4. No inert gas other than nitrogen is to be used in the 50/50 decompression mix. 5. Pure oxygen is only breathed in the decompression chamber and not in the water. 6. Oxygen content of deck decompression chamber atmosphere must not exceed 25% of the total volume. 7. It is mandatory to have an oxygen analyzer on all surface supplied gas jobs. Dive Procedures: 1. Start bottom mix at 150 feet or shallower.

2. Bottom time starts when the diver receives HeO2. 3. Maximum air time prior to switching is 10 minutes. Additional air time prior to switching is to be included in bottom time. 4. Diver is not to ascend above his first water stop in accordance with bottom time of dive. 5. Bottom time stops when the diver leaves the bottom. Gas Switching: 1. Switch to air at 150 feet or first stop, whichever is deeper; do not switch while traveling. 2. Diver must stop at 90 feet and switch to 50/50 mix before continuing to the first stop. 3. Do not connect 50/50 mix to the manifold until the diver reaches the 100-foot stop to eliminate the Diver getting the mix at a depth that would produce CNS oxygen toxicity. 4. Start decompression time when the Diver receives 50/50 mix. 5. A 5-minute air break, included in decompression time, is required every 30-40 minutes. Surface Interval: 1. Switch Diver to air 1 minute prior to leaving the 40-foot stop. 2. The 5 minute surface interval includes: . 1 minute from 40 feet to surface . 3 minutes on the surface . 1 minute to 50 feet in the chamber 3. Air breaks are to be included in the chamber time.

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4. Chamber decompression 5. Alternate 25 minutes oxygen, then 5 Chamber Decompression minutes air for the remainder of the time. Time Depth Medium 6. Rate of ascent from 40 feet after 15 min. 50 feet O2 completing specified chamber time is 10 10 min. 50 feet to 40 feet O2 minutes to the surface, while the Diver 5 min. 40 feet Air breathes oxygen. Optimum Time: 1. Optimum time for surface gas dive is the bottom time that gives the diver no more than 100 minutes water decompression. 2. Optimum times are not to be exceeded without permission. Repetitive Dives: 1. No repetitive dives are permitted using these tables. 2. A period of 18 hours (from the time the diver surfaces from chamber decompression) must pass before any other type of dive is initiated.

NOTE: Surface HeO2 diving should not be conducted in sea conditions that do not permit a constant decompression profile during in-water decompression. Use of Explosives Explosives must be transported, stored and used in compliance with 29 CFR Part 1910.109, 29 CFR Part 1926.912 and all applicable State and Federal Regulations. Before a blast is fired, a loud warning signal shall be given. NOTE: Some blasting caps are pressure sensitive and can detonate when lowered even to shallow depths. Transport and Storage Single-component explosives shall be transported and stored in magazine boxes. Blasting caps will not be transported in the same compartment with explosives. Circuit Tests Electrical continuity of explosive circuits shall not be tested with Divers in the water. All wires shall remain shunted until time for testing and hookup. The following safety practices should be followed by any employee who handles explosives in the course of the job.  While explosives are being handled or used, smoking is not permitted and no one near the explosives shall possess matches, open fire or other flame. No one shall handle explosives while intoxicated or impaired.  Explosives shall only be handled by a person holding a valid license to use explosives or by other employees under their direct supervision.  Explosives will not be given away or sold by any employee; all unused explosives shall be returned to their proper magazine.  Persons authorized to prepare explosive charges or conduct blasting shall use every reasonable precaution.  Electric blasting caps shall not be stored in the same magazine with other explosives.  No person shall store, handle or transport explosives or blasting agents when it would constitute an undue hazard to life and property.  Magazines must be kept locked at all times, except when explosives are being removed.  Do not tie in a blasting cap with bell or divers in the water. 6-19

 Do not carry a capped charge in the bell or lower a capped charge into the water while people are in the water.  Take precaution to prevent accidental discharge of electric blasting caps by currents from radar, radio transmitters, lightning or other sources of electricity. Precautions include: . Suspending all blasting operations during the approach and progress of an electrical storm. . Suspending radio transmissions during cap tie-in and remaining so until the shot is fired. . Placing radar in standby and remaining so until the shot is fired. . Leaving blasting caps in their magazine until ready for use. . Waiting a minimum of 30 minutes before recovering a cap that misfires. . When testing circuits to charges, using only blasting galvanometers designed for the purpose. Onboard Equipment Hand-held Power Tools and Equipment All hand-held electrical tools including hand held electrical equipment inside bells and habitats shall be de-energized at the surface before being placed into or retrieved from the water. All hand-held power tools (i.e., hydraulic and pneumatic) shall have a constant pressure switch or control (except for underwater welding and burning equipment). Welding and Burning Equipment  Welding machine frames shall be securely grounded.  Welding cables, electrode holders and connections shall be properly insulated.  Welding electrical circuits shall have a positive disconnect switch that shall remain open except during actual underwater welding or burning.  Insulated gloves shall be worn by the diver engaging in underwater welding and burning.  Closed compartments, structures and pipelines that are subjected to the heat of welding or burning shall be flooded, vented or purged with water or gas that will not support combustion prior to welding or burning, except during hot tap operations.  A rectifier-type welding machine should not be used for underwater welding or burning.

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Emergency Procedures The emergency procedures have been developed so that when an emergency occurs, everyone will know what to do and what every other member of the dive crew will do. It will be too late to read these procedures when the emergency occurs, at such a time every second will count. These emergency procedures must be read and understood well in advance so that all the proper actions will be coordinated to safely manage the emergency. Loss of Breathing Medium

Step Procedures Action Required By

Life Support Technician 1. Shift to secondary gas supply or Rack Operator 2. Go on bail-out bottle Diver Loss of Communications Life Support Technician 3. Alert Standby Diver or Rack Operator Step Procedures Action Required By Life Support Technician 4. Put bottom mix to diver‘s pneumo hose (if required) Life Support Technician 1. a Put breathing medium to diver‘s pneumo or Rack Operator or Rack Operator 5. Insert pneumo hose into mask (if required) Diver Life Support Technician 1.6. b GoAlert to standbybell/stage diver immediately after going on bailout Diver or Rack Operator Life Support Technician 7. If required, send Standby Diver to Diver‘s assistance Life Support Technician, 2. Attempt to establish line-pull signals or Rack Operator Rack Operator or Tender

Proceed to downline / bell stage (if bell attempt to 3. Diver use bell communications)

Bring diver to first stop once line-pull signals are 4. Tender established If required (unable to establish and inform Diving Diving Supervisor, Supervisor of communications with Diver), send Standby Diver, Life 5. Standby Diver to diver‘s assistance prior to bringing Support Technician and diver to first stop. Rack Operator

Diving Supervisor, Life 6. Terminate dive Support Technician, Rack Fouled or Entrapped Diver Operator and Diver

Step Procedures Action Required By

1. Do not panic or ditch equipment Diver

2. Inform topside Diver

Life Support Technician 3. Alert Standby Diver and Rack Operator 4. Determine extent of diver entrapment Diver 5. Diver attempt to free himself Diver Life Support Technician 6. If required, send Standby Diver to Diver‘s assistance or Rack Operator

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Injured Diver in Water Step Procedures Action Required By 1. Inform topside, abort dive Diver Life Support Technician or 2. Alert Standby Diver Rack Operator 3. Determine nature and extent of injury Diver If required, send Standby Diver to assist Diver, Life Support Technician or 4. administer first aid, evaluate injury, and remain Rack Operator with injured Diver

Begin decompression. Do not omit decompression Life Support Technician, 5. except when severity of injury is greater than the Diver or Rack Operator risk of omitting decompression Request required medical assistance and 6. Diving Supervisor emergency evacuation (if required)

Severance of Diver’s Umbilical

Step Procedures Action Required By 1. Activate bail-out bottle Diver Put breathing medium to Diver‘s pneumo hose; Rack Operator, Diver or 2. insert in helmet Rack Operator Rack Operator or Life 3. Alert Standby Diver Support Technician Rack Operator, Life 4. Terminate dive; return to bell or stage Support Technician or

Diver

5. Activate and use emergency gas on bell stage Diver

If required, send Standby Diver down with Rack Operator or Life 6. additional bailout bottle or hose. Support Technician

Operations Diving operations may only be conducted from a vessel or facility subject to the regulations in this section. Responsibilities of the Person-in-Charge 1. Prior to permitting any commercial diving operation to commence, have the designation of the diving supervisor for each diving operation as required by the dive procedures. 2. Do a report on the nature and times of the planned diving operation and the planned involvement of the vessel/facility, its equipment, and personnel in the diving operation. 3. Prior to permitting any diving operation involving liveboating to commence, the person-in-charge shall ensure a means of rapid communication with the diving supervisor while the diver is entering, in or leaving the water; and ensure a boat/crew for diver pickup are provided in the event of an emergency. 4. Ensure that a boat and crew for SCUBA diver pickup is provided when SCUBA divers are not line-tended from the dive location. 5. Coordinate the activities on & off the vessel or facility with the diving supervisor.

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6. Ensure that the vessel or facility equipment and personnel are kept clear of the dive location except after coordinating with the Diving Supervisor. Responsibilities of the Diving Supervisor The Diving Supervisor shall be fully cognizant of the provisions of the operations manual required by the operations manual and ensure that diving operations conducted from a vessel or facility subject to this subpart meet the following regulations. 1. Provide the report required to the person in charge before commencement of any diving operation. 2. Coordinate with the person in charge for any changes made to the report and promptly notify the person in charge of any diving related casualty, accident, or injury. 3. Plan and execute the diving operation, including managing the responsibility for the safety and health of the dive team. Dive Procedures The Diving Supervisor shall ensure that before commencing diving operations, dive team members are briefed on the tasks to be undertaken; any unusual hazards or environmental conditions likely to affect the safety of the dive; and any modifications to the operations manual or procedures necessitated by the specific diving operation. 1. The breathing gas supply systems, masks, helmets, thermal protection (when provided) and bell lifting equipment (when provided or required) are inspected prior to each dive. 2. Each diver is instructed to report any physical problems or physiological effects including aches, pains, current illnesses or symptoms of decompression sickness prior to each dive. 3. A depth, bottom time profile, including any breathing mixture changes, is maintained at the dive location for each diver, expect that SCUBA divers shall maintain their own profiles. 4. A two-way voice communication system is used between each surface-supplied diver, a dive team member at the dive location or bell (when provided) and the dive location. 5. A two-way communication system is available at the dive location to obtain emergency assistance. 6. After the completion of each dive, the physical condition of the diver must be checked by a visual observation and questioning the diver about physical well being; the diver is instructed to report any physical problems or adverse physiological effects including aches, pains, current illnesses or symptoms of decompression sickness or gas embolism. The diver will be advised of the location of an operational decompression chamber and alerted to the potential hazards of flying after diving. 7. For any dive outside the no-decompression limits, deeper than 130 fsw, or using mixed-gas as a breathing mixture, a depth, time, decompression profile (including breathing mixture changes) is maintained for each diver at the dive location. The diver is instructed to remain awake and in the vicinity of the dive location decompression chamber for at least one hour after the completion of a dive, decompression or treatment, and a dive team member, other than the diver, must be trained and available to operate the decompression chamber. 8. When decompression sickness or gas embolism is suspected or symptoms are evident, a report should be completed containing.  The investigation for each incident including:

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. The dive and decompression profiles; . The composition, depth and time of breathing mixture changes; . A description of the symptoms including depth and time of onset; and . A description and results of the treatment.  The evaluation for each incident based on: . The investigation; . Consideration of the past performance of the decompression table used; and . Individual susceptibility.  The corrective action taken, if necessary, to reduce the probability of recurrence. 9. The Diving supervisor shall ensure that the working interval of a dive is terminated when so directed or when a diver requests termination; a diver fails to respond correctly to communications or signals from a dive team member; communications are lost and can not be quickly reestablished between the diver, a dive team member at the dive location, or the person in charge and Diving Supervisor during liveboating operations; or a diver begins to use his diver carried reserve breathing gas supply. Operations Manual The Diving Supervisor shall provide an operations manual to the person in charge prior to commencement of any diving operation and make an operations manual available at the dive location to all dive-team members. This operations manual must provide for the safety/health of the divers. The operations manual must be modified in writing when adaptation is required because of the configuration or operation of the vessel or facility or the specific diving operation as planned. The operations manual must contain:  Safety procedures and checklists for each diving mode used.  Assignments and responsibilities of each dive team member for each diving mode used.  Equipment procedures for: fire, equipment failure, adverse environmental conditions such as weather and sea state, medical illness, and treatment of injury.  Procedures dealing with: hand-held power tools, welding/burning equipment and explosives. Records Logbook Entries Logbooks must be maintained on all vessels according to the following guidelines: 1. If the vessel or facility is required by 46 U.S.C. 11301 to have an official logbook, the person in charge of the vessel or facility should maintain all records on form CG-706. 2. If the vessel or facility is not required to have an official logbook, the person in charge of it should maintain, on board, a logbook for making the entries required by this subpart. 3. The Diving Supervisor conducting commercial diving operations from a vessel or facility shall maintain a logbook for making the required entries.

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Recorded by the Person-in-Charge for Each Commercial Diving Operation  Date, time and location at the start and completion of dive operations.  Underwater & surface conditions (weather, visibility, temperatures, & currents).  Names of dive team members, including diving supervisor.  General nature of work performed.  Repetitive dive designed or elapsed time since last hyperbaric exposure for each diver if less than 24 hours.  Diving modes used.  Maximum depth and bottom time for each diver.  Name of person in charge.  For each dive outside the no-decompression limits, deeper than 130 fsw or using mixed-gas, the breathing gases and decompression table designations used.  When decompression sickness or gas embolism is suspected or symptoms are evident, record the name of the diver and a description of treatment as well as its results.  For each fatality or diving-related injury or illness that results in incapacitation of more than 72 hours or requires any dive team member to be hospitalized for more than 24 hours, record the date, time, circumstances and extent of the injury or illness. Recorded by the Diving Supervisor for Each Diving Operation Deviation  A description of the circumstances leading to the situation.  The deviations made.  Corrective action taken, if appropriate, to reduce the possibility of recurrence. Records Maintained by the Diving Supervisor  The date and results of each check of the medical kits.  The date and results of each test of the air compressor.  The date and results of each check of breathing mixtures.  The date and results of each check of breathing supply system.  The date, equipment cleaned, general cleaning procedure, and names of persons cleaning the diving equipment for oxygen service.  The date and results of each test of the breathing supply hoses and system.  The date and results of each inspection of the breathing gas supply system.  The date and results of each test of depth gauges and timekeeping devices.  The date and results of each test and inspection of each PVHO.  The date and results of each inspection of the diving equipment.  The date and results of each test and inspection of volume tanks and cylinders. NOTE: The Diving Supervisor will ensure that a notation concerning the location of the above information is made in the logbook.

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Diving Operations Safe Planning Steps Always keep in mind that detailed, advanced planning is the foundation of diving safety. Analyze the Operation for Safety  Ensure that operational objective is defined.  Determine that alternate non-diving means to accomplish operations have been considered and eliminated as inappropriate.  Coordinate emergency assistance. Identify and Analyze Potential Hazards  Natural Hazards: 1. Atmospheric: . Exposure of personnel to extreme conditions . Adverse exposure of equipment and supplies to elements . Delays or disruption caused by weather 2. Surface: . Sea sickness . Water entry and exit . Handling of heavy equipment in rough seas . Maintaining location in tides and currents . Flotsam, kelp, and petroleum in the water . Delays or disruption caused by sea state 3. Underwater and Bottom: . Depth that exceeds diving limits or limits of available equipment . Exposure to cold temperatures . Dangerous marine life . Tides and currents . Limited visibility . Bottom obstructions . Dangerous bottom conditions (mud, drop-offs, etc.)  On-Site Hazards: . Local marine traffic or other conflicting maritime operations . Other conflicting commercial operations . High-powered, active sonar . Radiation contamination and other pollution (chemical, sewer outfalls, etc.)  Operation Hazards: . Decompression sickness . Communications problems . Drowning . Other trauma (injuries)  Object Hazards: . Entrapment and entanglement . Shifting or working of object

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. Explosives or other ordnance Select Equipment, Personnel, and Emergency Procedures  Diving Personnel: 1. Assign a complete and properly qualified Diving Team. 2. Assign the right man to the right task. 3. Verify that each member of the Diving Team is properly trained and qualified for the equipment and depths involved. 4. Determine that each man is physically fit to dive, paying attention to: . General condition and any evidence of fatigue. . Record of last medical examination. . Ears and sinuses. . Severe cold or flu. . Use of stimulants or intoxicants. 5. Observe divers for emotional readiness to dive: . Motivation and professional attitude. . Stability (no noticeably unusual or erratic behavior).  Diving Equipment: 1. Verify that diving gear chosen and diving techniques are adequate and authorized for the operation and particular task. 2. Verify that equipment and diving technique are proper for depth involved. 3. Verify that life support equipment has been tested & approved for use. 4. Determine that all necessary support equipment and tools are readily available and are best for accomplishing job efficiently and safely. 5. Determine that all related support equipment such as winches, boats, cranes, floats, etc. are operable, safe, and under control of trained personnel. 6. Check that all diving equipment has been properly maintained (with appropriate records) and is in full operating condition.  Provide for Emergency Equipment: 1. Obtain suitable communications equipment with sufficient capability to reach outside help; check all communications for proper operation. 2. Verify that a recompression chamber is ready for use, or notify the nearest facility with one that its use may be required within a given timeframe. 3. Verify that a completely stocked first aid kit is on hand. 4. If oxygen will be used as standby first aid, verify that the tank is full and properly pressurized, and that masks, valves, and other accessories are fully operable. 5. If a resuscitator will be used, check apparatus for function. 6. Check that fire-fighting equipment is readily available and in full operating condition. 7. Verify that emergency transportation is either standing by or on immediate call.  Establish Emergency Procedures: 1. Know how to obtain medical assistance immediately.

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2. For each potential emergency situation, assign specific tasks to the diving team and support personnel. 3. Complete and post Emergency Assistance Checklist and ensure that all personnel are familiar with it. 4. Verify that an up-to-date copy of U.S. Navy Decompression Tables is available. 5. Ensure that all divers, boat crews and other support personnel understand all diver hand signals. 6. Predetermine distress signals and call-signs. 7. Ensure that all divers have removed anything from their mouths on which they might choke during a dive (gum, dentures, tobacco). 8. Thoroughly instruct all personnel in Emergency Procedures, with particular attention to cross-training; instruction & drills should include: . Emergency recompression . Rapid undressing . Fire . First aid . Rapid dressing . Embolism . Restoration of breathing . Near-drowning . Electric shock . Blowup . Entrapment . Lost diver

Safe Diving Operational Procedures  Complete Planning, Organization, and Coordination Activities: 1. Ensure that other means of accomplishing a given operation have been considered before deciding to use divers. 2. Ensure that contingency planning has been conducted. 3. Carefully state goals and tasks of each operation and develop a flexible plan of operations (Dive Plan). 4. Completely brief the diving team and support personnel. 5. Designate a Master Diver or properly qualified Diving Supervisor to be in charge of the operations. 6. Designate a recorder/timekeeper and verify that he understands his duties and responsibilities. 7. Determine the exact depth at the jobsite through the use of a lead line, pneumofathometer, or commercial depth sounder. 8. Verify existence of an adequate supply of compressed air available for all planned diving operations plus an adequate reserve for emergencies. 9. Ensure that no operations or actions on part of diving team, support personnel, technicians, boat crew, winch operators, etc., take place without the knowledge of and by the direct instructions of the Diving Supervisor.

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10. All efforts must be made through planning, briefing, training, organization, and other preparations to minimize bottom time. Water depth and the condition of the diver (especially fatigue), rather than the amount of work to be done, shall govern diver‘s bottom time. 11. Current decompression tables shall be on hand and shall be used in all planning and scheduling of diving operations. 12. Instruct all divers and support personnel not to cut any lines until approved by the Diving Supervisor. 13. Ensure that the boat or diving craft is securely moored and in position to permit safest and most efficient operations (exceptions are emergency and critical boat repairs). 14. Verify that, when using surface-supplied techniques, the ship, boat, or diving craft has at least a two-point moor. 15. Ensure that, when conducting SCUBA operations in hazardous conditions, a boat can be quickly cast off and moved to a diver in distress.  Perform Diving Safety Procedures, Establish Safety Measures: 1. Ensure that each diver checks his own equipment in addition to checks made by tenders, technicians, or other support personnel. 2. Designate a standby diver for all diving operations; standby diver shall be dressed to the necessary level and ready to enter the water if needed. 3. Assign buddy divers, when required, for all scuba operations. 4. Take precautions to prevent divers from being fouled on bottom. If work is conducted inside a structure, assign a team of divers to accomplish task. One diver enters the structure, while the other tends his lines from point of entry. 5. When using explosives, take measures to ensure that no charge shall be fired while divers are in water. 6. Use safety procedures as outlined in relevant publications for all underwater cutting and welding operations. 7. Brief all divers and deck personnel on the planned decompression schedules for each particular dive. Check provisions for decompressing the diver. 8. Verify that diving craft is displaying proper signals, flags, day shapes, or lights to indicate diving operations are in progress. 9. Ensure that protection against harmful marine life has been provided. 10. Check that the quality of diver‘s air supply is periodically and thoroughly tested to ensure purity. 11. Thoroughly brief the boat crew. 12. Verify that proper safety and operational equipment is aboard small diving boats or craft.  Notify Proper Parties that Dive Operations Are Ready to Commence: 1. Harbor Master/Port Services Officer 2. U.S. Coast Guard (if broadcast warning to civilians is required) 3. Notify facilities having recompression chambers and sources of emergency transportation that diving operations are underway and their assistance may be needed.

Emergency Assistance Checklist Recompression Chamber 6-29

______Name Phone Number ______Location Response Time Air Transportation ______Name Phone Number ______Location Response Time Sea Transportation ______Name Phone Number ______Location Response Time Hospital ______Name Phone Number ______Location Response Time Gas Supplies ______Name Phone Number ______Location Response Time Communications ______Name Phone Number ______Location Response Time Other Diving Contractor ______Name Phone Number ______Location Response Time Project Manager ______Name Phone Number ______Location Response Time Diving Medical Doctor ______Name Phone Number ______Location Response Time Emergency Consultation Duty Phone Numbers 24 Hours a Day U.S. Navy Experimental Dive Unit (NEDU) Commercial (850) 234-4351 U.S. Navy Diving Salvage and Training Center (NDSTC) Commercial (850) 234-4651

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§1910.401 – General Scope and application (a) Scope. (1) This subpart (standard) applies to every place of employment within the waters of the United States, or within any State, the District of Columbia, the Commonwealth of Puerto Rico, the Virgin Islands, American Samoa, Guam, the Trust Territory of the Pacific Islands, Wake Island, Johnston Island, the Canal Zone, or within the Outer Continental Shelf lands as defined in the Outer Continental Shelf Lands Act (67 Stat. 462, 43 U.S.C. 1331), where diving and related support operations are performed. (2) This standard applies to diving and related support operations conducted in connection with all types of work and employments, including general industry, construction, ship repairing, shipbuilding, shipbreaking, and longshoring. However, this standard does not apply to any diving operation: (i) Performed solely for instructional purposes, using open-circuit, compressed- air SCUBA and conducted within the no-decompression limits; (ii) Performed solely for search, rescue, or related public safety purposes by or under the control of a governmental agency; or (iii) Governed by 45 CFR Part 46 (Protection of Human Subjects, U.S. Department of Health and Human Services) or equivalent rules or regulations established by another federal agency, which regulate research, development, or related purposes involving human subjects. (iv) Defined as scientific diving and which is under the direction and control of a diving program containing at least the following elements: [A] Diving safety manual which includes at a minimum: Procedures covering all diving operations specific to the program; procedures for emergency care, including recompression and evacuation; and criteria for diver training and certification. [B] Diving control (safety) board, with the majority of its members being active divers, which shall at a minimum have the authority to: Approve and monitor diving projects; review and revise the diving safety manual; assure compliance with the manual; certify the depths to which a diver has been trained; take disciplinary action for unsafe practices; and, assure adherence to the buddy system (a diver is accompanied by and is in continuous contact with another diver in the water) for SCUBA diving. (3) Alternative requirements for recreational diving instructors and diving guides. Employers of recreational diving instructors and diving guides are not required to comply with the decompression-chamber requirements specified by paragraphs (b)(2) and (c)(3)(iii) of §1910.423 and paragraph (b)(1) of §1910.426 when they meet all of the following conditions: (i) The instructor or guide is engaging solely in recreational diving instruction or dive-guiding operations; (ii) The instructor or guide is diving within the no-decompression limits in these operations; (iii) The instructor or guide is using a nitrox breathing-gas mixture consisting of a high percentage of oxygen (more than 22% by volume) mixed with nitrogen; (iv) The instructor or guide is using an open-circuit, semi-closed-circuit, or closed-circuit self-contained underwater breathing apparatus (SCUBA); and

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(v) The employer of the instructor or guide is complying with all requirements of Appendix C of this subpart. (b) Application in emergencies. An employer may deviate from the requirements of this standard to the extent necessary to prevent or minimize a situation which is likely to cause death, serious physical harm, or major environmental damage, provided that the employer: (1) Notifies the Area Director, Occupational Safety and Health Administration within 48 hours of the onset of the emergency situation indicating the nature of the emergency and extent of the deviation from the prescribed regulations; and (2) Upon request from the Area Director, submits such information in writing. (c) Employer obligation. The employer shall be responsible for compliance with: (1) All provisions of this standard of general applicability; and (2) All requirements pertaining to specific diving modes to the extent diving operations in such modes are conducted. §1910.402 – Definitions As used in this standard, the listed terms are defined as follows: Acfm – Actual cubic feet per minute. ASME Code or equivalent – ASME (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code, Section VIII, or an equivalent code which the employer can demonstrate to be equally effective. ATA – Atmosphere absolute. Bell – An enclosed compartment, pressurized (closed bell) or unpressurized (open bell), which allows the diver to be transported to and from the underwater work area and which may be used as a temporary refuge during diving operations. Bottom time – The total elapsed time measured in minutes from the time when the diver leaves the surface in descent to the time that the diver begins ascent. Bursting pressure – The pressure at which a pressure containment device would fail structurally. Cylinder – A pressure vessel for the storage of gases. Decompression chamber – A pressure vessel for human occupancy such as a surface decompression chamber, closed bell, or deep diving system used to decompress divers and to treat decompression sickness. Decompression sickness – A condition with a variety of symptoms which may result from gas or bubbles in the tissues of divers after pressure reduction. Decompression table – A profile or set of profiles of depth-time relationships for ascent rates and breathing mixtures to be followed after a specific depth-time exposure or exposures. Dive-guiding operations – means leading groups of sports divers, who use an open-circuit, semi-closed-circuit, or closed-circuit self-contained underwater breathing apparatus, to local undersea diving locations for recreational purposes. Dive location – A surface or vessel from which a diving operation is conducted. Dive-location reserve breathing gas. A supply system of air or mixed-gas (as appropriate) at the dive location which is independent of the primary supply system and sufficient to support divers during the planned decompression. Dive team – Divers and support employees involved in a diving operation, including the designated person-in-charge. Diver – An employee working in water using underwater apparatus which supplies compressed breathing gas at the ambient pressure.

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Diver-carried reserve breathing gas – A diver-carried supply of air or mixed gas (as appropriate) sufficient under standard operating conditions to allow the diver to reach the surface, another source of breathing gas, or be reached by a standby diver. Diving mode – A type of diving requiring specific equipment, procedures and techniques (SCUBA, surface-supplied air, or mixed gas). Fsw. Feet of seawater (or equivalent static pressure head). Heavy gear – Diver-worn deep-sea dress including helmet, breastplate, dry suit, and weighted shoes. Hyperbaric conditions – Pressure conditions in excess of surface pressure. Inwater stage – A suspended underwater platform that supports a diver in water. Liveboating – The practice of supporting a surfaced-supplied air or mixed gas diver from a vessel that is underway. Mixed-gas diving – A diving mode in which the diver is supplied in the water with a breathing gas other than air. No-decompression limits – The depth-time limits of the "no-decompression limits and repetitive dive group designation table for no-decompression air dives", U.S. Navy Diving Manual or equivalent limits which the employer can demonstrate to be equally effective. Psi(g) – Pounds per square inch (gauge). Recreational diving instruction – means training diving students in the use of recreational diving procedures and the safe operation of diving equipment, including an open-circuit, semi-closed-circuit, or closed-circuit self-contained underwater breathing apparatus, during dives. Scientific diving – means diving performed solely as a necessary part of a scientific, research, or educational activity by employees whose sole purpose for diving is to perform scientific research tasks. Scientific diving does not include performing any tasks usually associated with commercial diving such as: Placing or removing heavy objects underwater; inspection of pipelines and similar objects; construction; demolition; cutting or welding; or the use of explosives. SCUBA diving – A diving mode independent of surface supply in which the diver uses open circuit self-contained underwater breathing apparatus. Standby diver – A diver at the dive location available to assist a diver in the water. Surface-supplied air diving – A diving mode in which the diver in the water is supplied from the dive location with compressed air for breathing. Treatment table – A depth-time and breathing gas profile designed to treat decompression sickness. Umbilical – The composite hose bundle between a dive location and a diver or bell, or between a diver and a bell, which supplies the diver or bell with breathing gas, communications, power, or heat as appropriate to the diving mode or conditions, and includes a safety line between the diver and the dive location. Volume tank – A pressure vessel connected to the outlet of a compressor and used as an air reservoir. Working pressure – The maximum pressure to which a pressure containment device may be exposed under standard operating conditions.

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§1910.410 – Personnel Requirements Qualifications of dive team (a) General. (1) Each dive team member shall have the experience or training necessary to perform assigned tasks in a safe and healthful manner. (2) Each dive team member shall have experience or training in the following: (i) The use of tools, equipment, and systems relevant to assigned tasks; (ii) Techniques of the assigned diving mode; and (iii) Diving operations and emergency procedures. (3) All dive team members shall be trained in cardiopulmonary resuscitation and first aid (American Red Cross standard course or equivalent). (4) Dive team members who are exposed to or control the exposure of others to hyperbaric conditions shall be trained in diving-related physics and physiology. (b) Assignments. (1) Each dive team member shall be assigned tasks in accordance with the employee's experience or training, except that limited additional tasks may be assigned to an employee undergoing training provided that these tasks are performed under the direct supervision of an experienced dive team member. (2) The employer shall not require a dive team member to be exposed to hyperbaric conditions against the employee's will, except when necessary to complete decompression or treatment procedures. (3) The employer shall not permit a dive team member to dive or be otherwise exposed to hyperbaric conditions for the duration of any temporary physical impairment or condition which is known to the employer and is likely to affect adversely the safety or health of a dive team member. (c) Designated person-in-charge. (1) The employer or an employee designated by the employer shall be at the dive location in charge of all aspects of the diving operation affecting the safety and health of dive team members. (2) The designated person-in-charge shall have experience and training in the conduct of the assigned diving operation. §1910.420 – General Operations Procedures Safe practices manual (a) General. The employer shall develop and maintain a safe practices manual which shall be made available at the dive location to each dive team member. (b) Contents. (1) The safe practices manual shall contain a copy of this standard and the employer's policies for implementing the requirements of this standard. (2) For each diving mode engaged in, the safe practices manual shall include: (i) Safety procedures and checklists for diving operations; (ii) Assignments and responsibilities of the dive team members; (iii) Equipment procedures and checklists; and (iv) Emergency procedures for fire, equipment failure, adverse environmental conditions, and medical illness and injury.

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§1910.421 – Pre-dive procedures (a) General. The employer shall comply with the following requirements prior to each diving operation, unless otherwise specified. (b) Emergency aid. A list shall be kept at the dive location of the telephone or call numbers of the following: (1) An operational decompression chamber (if not at the dive location); (2) Accessible hospitals; (3) Available physicians; (4) Available means of transportation; and (5) The nearest U.S. Coast Guard Rescue Coordination Center. (c) First aid supplies. (1) A first-aid kit appropriate for the diving operation and approved by a physician shall be available at the dive location. (2) When used in a decompression chamber or bell, the first-aid kit shall be suitable for use under hyperbaric conditions. (3) In addition to any other first aid supplies, an American Red Cross standard first aid handbook or equivalent, and a bag-type manual resuscitator with transparent mask and tubing shall be available at the dive location. (d) Planning and assessment. Planning of a diving operation shall include an assessment of the safety and health aspects of the following: (1) Diving mode; (2) Surface and underwater conditions and hazards; (3) Breathing gas supply (including reserves); (4) Thermal protection; (5) Diving equipment and systems; (6) Dive team assignments and physical fitness of dive team members (including any impairment known to the employer); (7) Repetitive dive designation or residual inert gas status of dive team members; (8) Decompression and treatment procedures (including altitude corrections); and (9) Emergency procedures. (e) Hazardous activities. To minimize hazards to the dive team, diving operations shall be coordinated with other activities in the vicinity which are likely to interfere with the diving operation. (f) Employee briefing. (1) Dive team members shall be briefed on: (i) The tasks to be undertaken; (ii) Safety procedures for the diving mode; (iii) Any unusual hazards or environmental conditions likely to affect the safety of the diving operation; and (iv) Any modifications to operating procedures necessitated by the specific diving operation. (2) Prior to making individual dive team member assignments, the employer shall inquire into the dive team member's current state of physical fitness, and indicate to the dive team member the procedure for reporting physical problems or adverse physiological effects during and after the dive. (g) Equipment inspection. The breathing gas supply system including reserve breathing gas supplies, masks, helmets, thermal protection, and bell handling mechanism (when appropriate) shall be inspected prior to each dive.

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(h) Warning signal. When diving from surfaces other than vessels in areas capable of supporting marine traffic, a rigid replica of the international code flag "A" at least one meter in height shall be displayed at the dive location in a manner which allows all- round visibility, and shall be illuminated during night diving operations. §1910.422 – Procedures During Dive (a) General. The employer shall comply with the following requirements which are applicable to each diving operation unless otherwise specified. (b) Water entry and exit. (1) A means capable of supporting the diver shall be provided for entering and exiting the water. (2) The means provided for exiting the water shall extend below the water surface. (3) A means shall be provided to assist an injured diver from the water or into a bell. (c) Communications. (1) An operational two-way voice communication system shall be used between: (i) Each surface-supplied air or mixed-gas diver and a dive team member at the dive location or bell (when provided or required); and (ii) The bell and the dive location. (2) An operational, two-way communication system shall be available at the dive location to obtain emergency assistance. (d) Decompression tables. Decompression, repetitive, and no-decompression tables (as appropriate) shall be at the dive location. (e) Dive profiles. A depth-time profile, including when appropriate any breathing gas changes, shall be maintained for each diver during the dive including decompression. (f) Hand-held power tools and equipment. (1) Hand-held electrical tools and equipment shall be de-energized before being placed into or retrieved from the water. (2) Hand-held power tools shall not be supplied with power from the dive location until requested by the diver. (g) Welding and burning. (1) A current supply switch to interrupt the current flow to the welding or burning electrode shall be: (i) Tended by a dive team member in voice communication with the diver performing the welding or burning; and (ii) Kept in the open position except when the diver is welding or burning. (2) The welding machine frame shall be grounded. (3) Welding and burning cables, electrode holders, and connections shall be capable of carrying the maximum current required by the work, and shall be properly insulated. (4) Insulated gloves shall be provided to divers performing welding and burning operations.

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(5) Prior to welding or burning on closed compartments, structures or pipes, which contain a flammable vapor or in which a flammable vapor may be generated by the work, they shall be vented, flooded, or purged with a mixture of gases which will not support combustion. (h) Explosives. (1) Employers shall transport, store, and use explosives in accordance with this section and the applicable provisions of §§1910.109 and 1926.912 of Title 29 of the Code of Federal Regulations. (2) Electrical continuity of explosive circuits shall not be tested until the diver is out of the water. (3) Explosives shall not be detonated while the diver is in the water. (i) Termination of dive. The working interval of a dive shall be terminated when: (1) A diver requests termination; (2) A diver fails to respond correctly to communications or signals from a dive team member; (3) Communications are lost and can not be quickly re-established between the diver and a dive team member at the dive location, and between the designated person-in-charge and the person controlling the vessel in liveboating operations; or (4) A diver begins to use diver-carried reserve breathing gas or the dive-location reserve breathing gas. §1910.423 – Post-dive procedures (a) General. The employer shall comply with the following requirements which are applicable after each diving operation, unless otherwise specified. (b) Precautions. (1) After the completion of any dive, the employer shall: (i) Check the physical condition of the diver; (ii) Instruct the diver to report any physical problems or adverse physiological effects including symptoms of decompression sickness; (iii) Advise the diver of the location of a decompression chamber which is ready for use; and (iv) Alert the diver to the potential hazards of flying after diving. (2) For any dive outside the no-decompression limits, deeper than 100 fsw or using mixed gas as a breathing mixture, the employer shall instruct the diver to remain awake and in the vicinity of the decompression chamber which is at the dive location for at least one hour after the dive (including decompression or treatment as appropriate). (c) Recompression capability. (1) A decompression chamber capable of recompressing the diver at the surface to a minimum of 165 fsw (6 ATA) shall be available at the dive location for: (i) Surface-supplied air diving to depths deeper than 100 fsw and shallower than 220 fsw; (ii) Mixed gas diving shallower than 300 fsw; or (iii) Diving outside the no-decompression limits shallower than 300 fsw. (2) A decompression chamber capable of recompressing the diver at the surface to the maximum depth of the dive shall be available at the dive location for dives deeper than 300 fsw. (3) The decompression chamber shall be: (i) Dual-lock;

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(ii) Multiplace; and (iii) Located within 5 minutes of the dive location. (4) The decompression chamber shall be equipped with: (i) A pressure gauge for each pressurized compartment designed for human occupancy; (ii) A built-in-breathing-system with a minimum of one mask per occupant; (iii) A two-way voice communication system between occupants and a dive team member at the dive location; (iv) A viewport; and (v) Illumination capability to light the interior. (5) Treatment tables, treatment gas appropriate to the diving mode, and sufficient gas to conduct treatment shall be available at the dive location. (6) A dive team member shall be available at the dive location during and for at least one hour after the dive to operate the decompression chamber (when required or provided). (d) Record of dive. (1) The following information shall be recorded and maintained for each diving operation: (i) Names of dive team members including designated person-in-charge; (ii) Date, time, and location; (iii) Diving modes used; (iv) General nature of work performed; (v) Approximate underwater and surface conditions (visibility, water temperature and current); and (vi) Maximum depth and bottom time for each diver. (2) For each dive outside the no-decompression limits, deeper than 100 fsw or using mixed gas, the following additional information shall be recorded and maintained: (i) Depth-time and breathing gas profiles; (ii) Decompression table designation (including modification); and (iii) Elapsed time since last pressure exposure if less than 24 hours or repetitive dive designation for each diver. (3) For each dive in which decompression sickness is suspected or symptoms are evident, the following additional information shall be recorded and maintained: (i) Description of decompression sickness symptoms (including depth and time of onset); and (ii) Description and results of treatment. (e) Decompression procedure assessment. The employer shall: (1) Investigate and evaluate each incident of decompression sickness based on the recorded information, consideration of the past performance of decompression table used, and individual susceptibility; (2) Take appropriate corrective action to reduce the probability of recurrence of decompression sickness; and (3) Prepare a written evaluation of the decompression procedure assessment, including any corrective action taken, within 45 days of the incident of decompression sickness. §1910.424 – Specific Operations Procedures SCUBA diving (a) General. Employers engaged in SCUBA diving shall comply with the following requirements, unless otherwise specified. 6-38

(b) Limits. SCUBA diving shall not be conducted: (1) At depths deeper than 130 fsw; (2) At depths deeper than 100 fsw or outside the no-decompression limits unless a decompression chamber is ready for use; (3) Against currents exceeding one (1) knot unless line-tended; or (4) In enclosed or physically confining spaces unless line-tended. (c) Procedures. (1) A standby diver shall be available while a diver is in the water. (2) A diver shall be line-tended from the surface, or accompanied by another diver in the water in continuous visual contact during the diving operations. (3) A diver shall be stationed at the underwater point of entry when diving is conducted in enclosed or physically confining spaces. (4) A diver-carried reserve breathing gas supply shall be provided for each diver consisting of: (i) A manual reserve (J valve); or (ii) An independent reserve cylinder with a separate regulator or connected to the underwater breathing apparatus. (5) The valve of the reserve breathing gas supply shall be in the closed position prior to the dive. §1910.425 – Surface-Supplied Air Diving (a) General. Employers engaged in surface-supplied air diving shall comply with the following requirements, unless otherwise specified. (b) Limits. (1) Surface-supplied air diving shall not be conducted at depths deeper than 190 fsw, except that dives with bottom times of 30 minutes or less may be conducted to depths of 220 fsw. (2) A decompression chamber shall be ready for use at the dive location for any dive outside the no-decompression limits or deeper than 100 fsw. (3) A bell shall be used for dives with an inwater decompression time greater than 120 minutes, except when heavy gear is worn or diving is conducted in physically confining spaces. (c) Procedures. (1) Each diver shall be continuously tended while in the water. (2) A diver shall be stationed at the underwater point of entry when diving is conducted in enclosed or physically confining spaces. (3) Each diving operation shall have a primary breathing gas supply sufficient to support divers for the duration of the planned dive including decompression. (4) For dives deeper than 100 fsw or outside the no-decompression limits: (i) A separate dive team member shall tend each diver in the water; (ii) A standby diver shall be available while a diver is in the water; (iii) A diver-carried reserve breathing gas supply shall be provided for each diver except when heavy gear is worn; and (iv) A dive-location reserve breathing gas supply shall be provided. (5) For heavy-gear diving deeper than 100 fsw or outside the no-decompression limits: (i) An extra breathing gas hose capable of supplying breathing gas to the diver in the water shall be available to the standby diver. (ii) An inwater stage shall be provided to divers in the water.

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(6) Except when heavy gear is worn or where physical space does not permit, a diver-carried reserve breathing gas supply shall be provided whenever the diver is prevented by the configuration of the dive area from ascending directly to the surface. §1910.426 – Mixed-Gas Diving (a) General. Employers engaged in mixed-gas diving shall comply with the following requirements, unless otherwise specified. (b) Limits. Mixed-gas diving shall be conducted only when: (1) A decompression chamber is ready for use at the dive location; and (i) A bell is used at depths greater than 220 fsw or when the dive involves inwater decompression time of greater than 120 minutes, except when heavy gear is worn or when diving in physically confining spaces; or (ii) A closed bell is used at depths greater than 300 fsw, except when diving is conducted in physically confining spaces. (c) Procedures. (1) A separate dive team member shall tend each diver in the water. (2) A standby diver shall be available while a diver is in the water. (3) A diver shall be stationed at the underwater point of entry when diving is conducted in enclosed or physically confining spaces. (4) Each diving operation shall have a primary breathing gas supply sufficient to support divers for the duration of the planned dive including decompression. (5) Each diving operation shall have a dive-location reserve breathing gas supply. (6) When heavy gear is worn: (i) An extra breathing gas hose capable of supplying breathing gas to the diver in the water shall be available to the standby diver; and (ii) An inwater stage shall be provided to divers in the water. (7) An inwater stage shall be provided for divers without access to a bell for dives deeper than 100 fsw or outside the no-decompression limits. (8) When a closed bell is used, one dive team member in the bell shall be available and tend the diver in the water. (9) Except when heavy gear is worn or where physical space does not permit, a diver-carried reserve breathing gas supply shall be provided for each diver: (i) Diving deeper than 100 fsw or outside the no-decompression limits; or (ii) Prevented by the configuration of the dive area from directly ascending to the surface.

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§1910.427 – Liveboating (a) General. Employers engaged in diving operations involving liveboating shall comply with the following requirements. (b) Limits. Diving operations involving liveboating shall not be conducted: (1) With an inwater decompression time of greater than 120 minutes; (2) Using surface-supplied air at depths deeper than 190 fsw, except that dives with bottom times of 30 minutes or less may be conducted to depths of 220 fsw; (3) Using mixed gas at depths greater than 220 fsw; (4) In rough seas which significantly impede diver mobility or work function; or (5) In other than daylight hours. (c) Procedures. (1) The propeller of the vessel shall be stopped before the diver enters or exits the water. (2) A device shall be used which minimizes the possibility of entanglement of the diver's hose in the propeller of the vessel. (3) Two-way voice communication between the designated person-in-charge and the person controlling the vessel shall be available while the diver is in the water. (4) A standby diver shall be available while a diver is in the water. (5) A diver-carried reserve breathing gas supply shall be carried by each diver engaged in liveboating operations. §1910.430 – Equipment (a) General. (1) All employers shall comply with the following requirements, unless otherwise specified. (2) Each equipment modification, repair, test, calibration or maintenance service shall be recorded by means of a tagging or logging system, and include the date and nature of work performed, and the name or initials of the person performing the work. (b) Air compressor system. (1) Compressors used to supply air to the diver shall be equipped with a volume tank with a check valve on the inlet side, a pressure gauge, a relief valve, and a drain valve. (2) Air compressor intakes shall be located away from areas containing exhaust or other contaminants. (3) Respirable air supplied to a diver shall not contain: (i) A level of carbon monoxide (CO) greater than 20 p/m;

(ii) A level of carbon dioxide (CO2) greater than 1,000 p/m; (iii) A level of oil mist greater than 5 milligrams per cubic meter; or (iv) A noxious or pronounced odor. (4) The output of air compressor systems shall be tested for air purity every 6 months by means of samples taken at the connection to the distribution system, except that non-oil lubricated compressors need not be tested for oil mist. (c) Breathing gas supply hoses. (1) Breathing gas supply hoses shall: (i) Have a working pressure at least equal to the working pressure of the total breathing gas system; (ii) Have a rated bursting pressure at least equal to 4 times the working pressure;

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(iii) Be tested at least annually to 1.5 times their working pressure; and (iv) Have their open ends taped, capped or plugged when not in use. (2) Breathing gas supply hose connectors shall: (i) Be made of corrosion-resistant materials; (ii) Have a working pressure at least equal to the working pressure of the hose to which they are attached; and (iii) Be resistant to accidental disengagement. (3) Umbilicals shall: (i) Be marked in 10-ft. increments to 100 feet beginning at the diver's end, and in 50 ft. increments thereafter; (ii) Be made of kink-resistant materials; and (iii) Have a working pressure greater than the pressure equivalent to the maximum depth of the dive (relative to the supply source) plus 100 psi. (d) Buoyancy control. (1) Helmets or masks connected directly to the dry suit or other buoyancy- changing equipment shall be equipped with an exhaust valve. (2) A dry suit or other buoyancy-changing equipment not directly connected to the helmet or mask shall be equipped with an exhaust valve. (3) When used for SCUBA diving, a buoyancy compensator shall have an inflation source separate from the breathing gas supply. (4) An inflatable flotation device capable of maintaining the diver at the surface in a face-up position, having a manually activated inflation source independent of the breathing supply, an oral inflation device, and an exhaust valve shall be used for SCUBA diving. (e) Compressed gas cylinders. Compressed gas cylinders shall: (1) Be designed, constructed and maintained in accordance with the applicable provisions of 29 CFR 1910.101 and 1910.169 through 1910.171; (2) Be stored in a ventilated area and protected from excessive heat; (3) Be secured from falling; and (4) Have shut-off valves recessed into the cylinder or protected by a cap, except when in use or manifolded, or when used for SCUBA diving. (f) Decompression chambers. (1) Each decompression chamber manufactured after the effective date of this standard, shall be built and maintained according to the ASME Code or equivalent. (2) Each decompression chamber manufactured prior to the effective date of this standard shall be maintained in conformity with the code requirements to which it was built, or equivalent. (3) Each decompression chamber shall be equipped with: (i) Means to maintain the atmosphere below a level of 25 percent oxygen by volume; (ii) Mufflers on intake and exhaust lines, which shall be regularly inspected and maintained; (iii) Suction guards on exhaust line openings; and (iv) A means for extinguishing fire, and shall be maintained to minimize sources of ignition and combustible material. (g) Gauges and timekeeping devices. (1) Gauges indicating diver depth which can be read at the dive location shall be used for all dives except SCUBA.

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(2) Each depth gauge shall be deadweight tested or calibrated against a master reference gauge every 6 months, and when there is a discrepancy greater than two percent (2 percent) of full scale between any two equivalent gauges. (3) A cylinder pressure gauge capable of being monitored by the diver during the dive shall be worn by each SCUBA diver. (4) A timekeeping device shall be available at each dive location. (h) Masks and helmets. (1) Surface-supplied air and mixed-gas masks and helmets shall have: (i) A non-return valve at the attachment point between helmet or mask and hose which shall close readily and positively; and (ii) An exhaust valve. (2) Surface-supplied air masks and helmets shall have a minimum ventilation rate capability of 4.5 acfm at any depth at which they are operated or the capability of maintaining the diver's inspired carbon dioxide partial pressure below 0.02 ATA when the diver is producing carbon dioxide at the rate of 1.6 standard liters/min. (i) Oxygen safety. (1) Equipment used with oxygen or mixtures containing over forty percent (40%) by volume oxygen shall be designed for oxygen service. (2) Components (except umbilicals) exposed to oxygen or mixtures containing over forty percent (40%) by volume oxygen shall be cleaned of flammable materials before use. (3) Oxygen systems over 125 psig and compressed air systems over 500 psig shall have slow-opening shut-off valves. (j) Weights and harnesses. (1) Except when heavy gear is worn, divers shall be equipped with a weight belt or assembly capable of quick release. (2) Except when heavy gear is worn or in SCUBA diving, each diver shall wear a safety harness with: (i) A positive buckling device; (ii) An attachment point for the umbilical to prevent strain on the mask or helmet; and (iii) A lifting point to distribute the pull force of the line over the diver's body. §1910.440 – Recordkeeping Requirements (a) (1) [Reserved] (2) The employer shall record the occurrence of any diving-related injury or illness which requires any dive team member to be hospitalized for 24 hours or more, specifying the circumstances of the incident and the extent of any injuries or illnesses. (b) Availability of records. (1) Upon the request of the Assistant Secretary of Labor for Occupational Safety and Health, or the Director, National Institute for Occupational Safety and Health, Department of Health and Human Services of their designees, the employer shall make available for inspection and copying any record or document required by this standard. (2) Records and documents required by this standard shall be provided upon request to employees, designated representatives, and the Assistant Secretary in accordance with 29 CFR 1910.1020 (a)-(e) and (g)-(i) . Safe practices manuals (§1910.420), depth-time profiles (§1910.422), recordings of dives (§1910.423), decompression procedure assessment evaluations (§1910.423), and records of hospitalizations (§1910.440) shall be provided in the same manner as employee 6-43

exposure records or analyses using exposure or medical records. Equipment inspections and testing records which pertain to employees (§1910.430) shall also be provided upon request to employees and their designated representatives. (3) Records and documents required by this standard shall be retained by the employer for the following period: (i) Dive team member medical records (§1910.411) — 5 years; (ii) Safe practices manual (§1910.420) — current document only; (iii) Depth-time profile (§1910.422) — until completion of the recording of dive, or until completion of decompression procedure assessment where there has been an incident of decompression sickness; (iv) Recording of dive (§1910.423) — 1 year, except 5 years where there has been an incident of decompression sickness; (v) Decompression procedure assessment evaluations (§1910.423) — 5 years; (vi) Equipment inspections and testing records (§1910.430) — current entry or tag, or until equipment is withdrawn from service; (vii) Records of hospitalizations (§1910.440) — 5 years. (4) After the expiration of the retention period of any record required to be kept for five (5) years, the employer shall forward such records to NIOSH, Department of Health and Human Services. The employer shall also comply with any additional requirements set forth at 29 CFR 1910.20(h). (5) In the event the employer ceases to do business: (i) The successor employer shall receive and retain all dive and employee medical records required by this standard; or (ii) If there is no successor employer, dive and employee medical records shall be forwarded to NIOSH, Department of Health and Human Services. §1910 – Subpart T – Appendix A – Examples of Conditions Which May Restrict or Limit Exposure to Hyperbaric Conditions The following disorders may restrict or limit occupational exposure to hyperbaric conditions depending on severity, presence of residual effects, response to therapy, number of occurrences, diving mode, or degree and duration of isolation. o History of seizure disorder other than than isolated right bundle branch block, early febrile convulsions. angina pectoris, arrhythmia, coronary o Malignancies (active) unless treated and artery disease). without recurrence for 5 yrs. o Juxta-articular osteonecrosis. o Chronic inability to equalize sinus and/or middle ear pressure. o Cystic or cavitary disease of the lungs. o Impaired organ function caused by alcohol or drug use. o Conditions requiring continuous medication for control (e.g., antihistamines, steroids, barbiturates, moodaltering drugs, or insulin). o Meniere's disease. o Hemoglobinopathies. o Obstructive or restrictive lung disease. o Vestibular end organ destruction. o Pneumothorax. o Cardiac abnormalities (e.g., pathological heart block, valvular disease, intraventricular conduction defects other 6-44

GENERAL OPERATIONS Section Section 197.200 Purpose of subpart. 197.400 Applicability. 197.202 Applicability. 197.402 Responsibilities of the person-in- 197.203 Right of appeal. charge. 197.204 Definitions. 197.404 Responsibilities of the diving 197.205 Availability of standards. supervisor. 197.206 Substitutes for required equipment, 197.410 Dive procedures. materials, apparatus, arrangements, 197.420 Operations manual. procedures, or tests. SPECIFIC DIVING MODE PROCEDURES 197.208 Designation of person-in-charge. 197.430 SCUBA diving. 197.210 Designation of diving supervisor. 197.432 Surface-supplied air diving. EQUIPMENT 197.434 Surface-supplied mixed gas diving. 197.300 Applicability. 197.436 Liveboating. 197.310 Air compressor system. PERIODIC TESTS AND INSPECTIONS 197.312 Breathing supply hoses. OF DIVING EQUIPMENT 197.314 First aid and treatment equipment. 197.450 Breathing gas tests. 197.318 Gages and timekeeping devices. 197.452 Oxygen cleaning. 197.320 Diving ladder and stage. 197.454 First aid and treatment equipment. 197.322 Surface-supplied helmets and masks. 197.456 Breathing supply hoses. 197.324 Diver‘s safety harness. 197.458 Gages and timekeeping devices. 197.326 Oxygen safety. 197.460 Diving equipment. 197.328 PVHO—General. 197.462 Pressure vessels & pressure piping. 197.330 PVHO—Closed bells. RECORDS 197.332 PVHO—Decompression chambers. 197.480 Logbooks. 197.334 Open diving bells. 197.482 Logbook entries. 197.336 Pressure piping. 197.484 Notice of casualty. 197.338 Compressed gas cylinders. 197.486 Written report of casualty. 197.340 Breathing gas supply. 197.488 Retention of records after casualty. 197.342 Buoyancy-changing devices. 197.344 Inflatable flotation devices. APPENDIX A TO PART 197—AIR NO- 197.346 Diver‘s equipment. DECOMPRESSION LIMITS

Subpart B – Commercial Diving Operations - General §197.200 – Purpose of Subpart This subpart prescribes rules for the design, construction, and use of equipment, and inspection, operation, and safety and health standards for commercial diving operations taking place from vessels and facilities under U.S. Coast Guard jurisdiction.

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§197.202 – Applicability This subpart applies to commercial diving operations taking place at any deepwater port or the safety zone thereof as defined in 33 CFR part 150; from any artificial island, installation, or other device on the Outer Continental Shelf and the waters adjacent thereto as defined in 33 CFR part 147 or otherwise related to activities on the Outer Continental Shelf; and from all vessels required to have a certificate of inspection issued by the Coast Guard including mobile offshore drilling units regardless of their geographic location, or from any vessel connected with a deepwater port or within the deepwater port safety zone, or from any vessel engaged in activities related to the Outer Continental Shelf. Diving operations may deviate from the requirements of this subpart to the extent necessary to prevent or minimize a situation that is likely to cause death, injury, or major environmental damage. The circumstances leading to the situation, the deviations made, and the corrective action taken, if appropriate, to reduce the possibility of recurrence shall be recorded by the diving supervisor in the logbook as required by §197.482(c). §197.204 – Definitions As used in this subpart: ACFM – means actual cubic feet per minute. ANSI Code1 – means the B31.1 American National Standards Institute ‗‗Code for Pressure Piping, Power Piping.‘‘ ASME Code – means the American Society of Mechanical Engineers ‗‗Boiler and Pressure Vessel Code.‘‘ ASME PVHO–1 – means the ANSI/ ASME standard ‗‗Safety Standard for Pressure Vessels for Human Occupancy.‘‘ ATA – means a measure of pressure expressed in terms of atmosphere absolute (includes barometric pressure). Bell – means a compartment either at ambient pressure (open bell) or pressurized (closed bell) that allows the diver to be transported to and from the underwater work site, allows the diver access to the surrounding environment, and is capable of being used as a refuge during diving operations. Bottom time – means the total elapsed time measured in minutes from the time the diver leaves the surface in descent to the time to the next whole minute that the diver begins ascent. Breathing gas/breathing mixture – means the mixed-gas, oxygen, or air as appropriate supplied to the diver for breathing. Bursting pressure – means the pressure at which a pressure containment device would fail structurally. Commercial diver – means a diver engaged in underwater work for hire excluding sport and recreational diving and the instruction thereof. Commercial diving operation – means all activities in support of a commercial diver. Cylinder – means a pressure vessel for the storage of gases under pressure. Decompression chamber – means a pressure vessel for human occupancy such as a surface decompression chamber, closed bell, or deep diving system especially equipped to recompress, decompress, and treat divers. Decompression sickness – means a condition caused by the formation of gas or gas bubbles in the blood or body tissue as a result of pressure reduction. Decompression table – means a profile or set of profiles of ascent rates and breathing mixtures designed to reduce the pressure on a diver safely to atmospheric pressure after the diver has been exposed to a specific depth and bottom time. 6-46

Depth – means the maximum pressure expressed in feet of seawater attained by a diver and is used to express the depth of a dive. Dive location – means that portion of a vessel or facility from which a diving operation is conducted. Dive team – means the divers and diver support personnel involved in a diving operation, including the diving supervisor. Diver – means a person working beneath the surface, exposed to hyperbaric conditions, and using underwater breathing apparatus. Diver-carried reserve breathing – gas means a supply of air or mixed-gas, as appropriate, carried by the diver in addition to the primary or secondary breathing gas supplied to the diver. Diving installation – means all of the equipment used in support of a commercial diving operation. Diving mode – means a type of diving requiring SCUBA, surface-supplied air, or surface-supplied mixed-gas equipment, with related procedures and techniques. Diving stage – means a suspended platform constructed to carry one or more divers and used for putting divers into the water and bringing them to the surface when in- water decompression or a heavy-weight diving outfit is used. Diving supervisor – means the person having complete responsibility for the safety of a commercial diving operation including the responsibility for the safety and health of all diving personnel in accordance with this subpart. Facility – means a deepwater port, or an artificial island, installation, or other device on the Outer Continental Shelf subject to Coast Guard jurisdiction. Fsw – means feet of seawater (or equivalent static pressure head). Gas embolism – means a condition caused by expanding gases, which have been taken into and retained in the lungs while breathing under pressure, being forced into the bloodstream or other tissues during ascent or decompression. Heavy-weight diving outfit – means diver-worn surface-supplied deep-sea dress. Hyperbaric conditions – means pressure conditions in excess of surface atmospheric pressure. Injurious corrosion – means an advanced state of corrosion which may impair the structural integrity or safe operation of the equipment. Liveboating – means the support of a surfaced-supplied diver from a vessel underway. Maximum working pressure – means the maximum pressure to which a pressure containment device can be exposed under operating conditions (usually the pressure setting of the pressure relief device). No-decompression limits – means the air depth and bottom time limits of appendix A. Pressure vessel – means a container capable of withstanding an internal maximum working pressure over 15 psig. Psi(g) – means pounds per square inch (gage). PVHO – means pressure vessel for human occupancy but does not include pressure vessels for human occupancy that may be subjected to external pressures in excess of 15 psig but can only be subjected to maximum internal pressures of 15 psig or less (i.e., submersibles, or one atmosphere observation bells). Saturation diving – means saturating a diver‘s tissues with the inert gas in the breathing mixture to allow an extension of bottom time without additional decompression. SCUBA – diving means a diving mode in which the diver is supplied with a compressed breathing mixture from diver carried equipment.

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Standby diver – means a diver at the dive location available to assist a diver in the water. Surface-supplied air diving – means a diving mode in which the diver is supplied from the dive location or bell with compressed breathing air including oxygen or oxygen enriched air if supplied for treatment. Surface-supplied mixed-gas diving – means a diving mode in which the diver is supplied from the dive location or bell with a compressed breathing mixture other than air. Timekeeping device – means a device for measuring the time of a dive in minutes. Treatment table – means a depth, time, and breathing gas profile designed to treat a diver for decompression sickness. Umbilical – means the hose bundle between a dive location and a diver or bell, or between a diver and a bell, that supplies the diver or bell with a lifeline, breathing gas, communications, power, and heat as appropriate to the diving mode or conditions. Vessel – means any waterborne craft including mobile offshore drilling units required to have a Certificate of Inspection issued by the Coast Guard or any waterborne craft connected with a deepwater port or within the deepwater port safety zone, or any waterborne craft engaged in activities related to the Outer Continental Shelf. Volume tank – means a pressure vessel connected to the outlet of a compressor and used as an air reservoir. Working pressure – means the pressure to which a pressure containment device is exposed at any particular instant during normal operating conditions. §197.205 – Availability of Standards (a) Several standards have been incorporated by reference in this subchapter. The incorporation by reference has been approved by the Director of the Federal Register under the provisions of 1 CFR part 51. (b) The standards are available from the appropriate organizations whose addresses are listed below: (1) American National Standards Institute, 11 West 42nd Street, NY, NY 10036. (2) American Society of Mechanical Engineers, United Engineering Center, 345 East 47th Street, NY, NY 10017. §197.206 – Substitutes for Required Equipment, Materials, Apparatus, Arrangements, Procedures, or Tests (a) The Coast Guard may accept substitutes for equipment, materials, apparatus, arrangements, procedures, or tests required in this subpart if the substitute provides an equivalent level of safety. (b) In any case where it is shown to the satisfaction of the Commandant that the use of any particular equipment, material, apparatus, arrangement, procedure, or test is unreasonable or impracticable, the Commandant may permit the use of alternate equipment, material, apparatus, arrangement, procedure, or test to such an extent and upon such condition as will insure, to his satisfaction, a degree of safety consistent with the minimum standards set forth in this subpart. §197.208 – Designation of Person-in-Charge (a) The owner or agent of a vessel or facility without a designated master shall designate, in writing, an individual to be the person-in-charge of the vessel or facility. (b) Where a master is designated, the master is the person-in-charge. §197.210 – Designation of Diving Supervisor The name of the diving supervisor for each commercial diving operation shall be: (a) Designated in writing; and 6-48

(b) Given to the person-in-charge prior to the commencement of any commercial diving operation. EQUIPMENT §197.300 – Applicability (a) Each diving installation used on each vessel or facility subject to this subpart must meet the requirements of this subpart. (b) In addition to the requirements of this subpart, equipment which is permanently installed on vessels and is part of the diving installation must meet Subchapters F and J of this chapter. (c) All repairs and modifications to pressure vessels used for commercial diving operations must be made in accordance with the requirements of section VIII, division 1 or division 2 of the ASME Code, ASME PVHO–1, part 54 of this chapter, or 49 CFR 173.34, as applicable. (d) All repairs and modifications to pressure piping used for commercial diving operations must be made in accordance with the requirements of the ANSI Code or part 56 of this chapter, as applicable. §197.310 – Air Compressor System A compressor used to supply breathing air to a diver must have: (a) A volume tank that is: (1) Built and stamped in accordance with section VIII, division 1 of the ASME Code with: (i) A check valve on the inlet side; (ii) A pressure gage; (iii) A relief valve; and (iv) A drain valve; and (2) Tested after every repair, modification, or alteration to the pressure boundaries as required by §197.462; (b) Intakes that are located away from areas containing exhaust fumes of internal combustion engines or other hazardous contaminants; (c) An efficient filtration system; and (d) Slow-opening shut-off valves when the maximum allowable working pressure of the system exceeds 500 psig. §197.312 – Breathing Supply Hoses (a) Each breathing supply hose must: (1) Have a maximum working pressure that is equal to or exceeds: (i) The maximum working pressure of the section of the breathing supply system in which used; and (ii) The pressure equivalent of the maximum depth of the dive relative to the supply source plus 100 psig; (2) Have a bursting pressure of four times its maximum working pressure; (3) Have connectors that: (i) Are made of corrosion-resistant material; (ii) Are resistant to accidental disengagement; and (iii) Have a maximum working pressure that is at least equal to the maximum working pressure of the hose to which they are attached; and (4) Resist kinking by: (i) Being made of kink-resistant materials; or

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(ii) Having exterior support. (b) Each umbilical must: (1) Meet the requirements of paragraph (a) of this section; and (2) Be marked from the diver or open bell end in 10-foot intervals to 100 feet and in 50-foot intervals thereafter. §197.314 – First Aid and Treatment Equipment (a) Each dive location must have: (1) A medical kit approved by a physician that consists of: (i) Basic first aid supplies; and (ii) Any additional supplies necessary to treat minor trauma and illnesses resulting from hyperbaric exposure; (2) A copy of an American Red Cross Standard First Aid handbook; (3) A bag-type manual resuscitator with transparent mask and tubing; and (4) A capability to remove an injured diver from the water. (b) Each diving installation must have a two-way communications system to obtain emergency assistance except when the vessel or facility ship-to-shore, two-way communications system is readily available. (c) Each dive location supporting mixed-gas dives, dives deeper than 130 fsw, or dives outside the no-decompression limits must meet the requirements of paragraph (a) of this section and have: (1) A decompression chamber; (2) Decompression and treatment tables; (3) A supply of breathing gases sufficient to treat for decompression sickness; (4) The medical kit required by paragraph (a)(1) of this section that is: (i) Capable of being carried into the decompression chamber; and (ii) Suitable for use under hyperbaric conditions; and (5) A capability to assist an injured diver into the decompression chamber. §197.318 – Gages and Timekeeping Devices (a) A gage indicating diver depth must be at each dive location for surface-supplied dives. (b) A timekeeping device must be at each dive location. §197.320 – Diving Ladder and Stage (a) Each diving ladder must: (1) Be capable of supporting the weight of at least two divers; (2) Extend 3 feet below the water surface; (3) Be firmly in place; (4) Be available at the dive location for a diver to enter or exit the water unless a diving stage or bell is provided; and (5) Be made of corrosion-resistant material or protected against and maintained free from injurious corrosion. (b) Each diving stage must: (1) Be capable of supporting the weight of at least two divers; (2) Have an open-grating platform; (3) Be available for a diver to enter or exit the water from the dive location and for in-water decompression if the diver is: (i) Wearing a heavy-weight diving outfit; or (ii) Diving outside the no-decompression limits, except when a bell is provided;

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(4) Be made of corrosion-resistant material or protected against and maintained free from injurious corrosion. §197.322 – Surface-Supplied Helmets and Masks (a) Each surface-supplied helmet or mask must have: (1) A non-return valve at the attachment point between helmet or mask and umbilical that closes readily and positively; (2) An exhaust valve; and (3) A two-way voice communication system between the diver and the dive location or bell. (b) Each surface-supplied air helmet or mask must: (1) Ventilate at least 4.5 ACFM at any depth at which it is operated; or (2) Be able to maintain the diver‘s inspired carbon dioxide partial pressure below 0.02 ATA when the diver is producing carbon dioxide at the rate of 1.6 standard liters per minute. §197.324 – Diver’s Safety Harness Each safety harness used in surface-supplied diving must have: (a) A positive buckling device; and (b) An attachment point for the umbilical life line that: (1) Distributes the pulling force of the umbilical over the diver‘s body; and (2) Prevents strain on the mask or helmet. §197.326 – Oxygen Safety (a) Equipment used with oxygen or oxygen mixtures greater than 40 percent by volume must be designed for such use. (b) Oxygen systems with pressures greater than 125 psig must have slow-opening shut-off valves except pressure boundary shut-off valves may be ball valves. §197.328 – PVHO – General (a) Each PVHO, contracted for or purchased after February 1, 1979, must be built and stamped in accordance with ASME PVHO–1. (b) Each PVHO, contracted for or constructed before February 1, 1979, and not Coast Guard approved, must be submitted to the Coast Guard for approval prior to 2/1/84. (c) To be approved under paragraph (b), a PVHO must be: (1) Constructed in accordance with part 54 of this chapter; or: (2) Be built in accordance with section VIII, division 1 or division 2 of the ASME Code; and: (i) Have the plans approved in accordance with §54.01–18 of this chapter; (ii) Pass the radiographic and other survey tests of welded joints required by section VIII, division 1 or division 2, as appropriate, of the ASME Code; and (iii) Pass: (A) The hydrostatic test described in §54.10–10 of this chapter; or (B) The pneumatic test described in §54.10–15 of this chapter and such additional tests as the Officer-in-Charge, Marine Inspection (OCMI) may require. (d) Each PVHO must: (1) Have a shut-off valve located within 1 foot of the pressure boundary on all piping penetrating the pressure boundary; (2) Have a check valve located within 1 foot of the pressure boundary on all piping exclusively carrying fluids into the PVHO; (3) Have the pressure relief device required by ASME PVHO–1;

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(4) Have a built-in breathing system with at least one mask per occupant stored inside each separately pressurized compartment; (5) Have a two-way voice communications system allowing communications between an occupant in one pressurized compartment of the PVHO and: (i) The diving supervisor at the dive location; (ii) Any divers being supported from the same PVHO; and (iii) Occupants of other separately pressurized compartments of the same PVHO; (6) If designed to mechanically couple to another PVHO, have a two-way communications system allowing communications between occupants of each PVHO when mechanically coupled; (7) Have a pressure gage in the interior of each compartment that is: (i) Designed for human occupancy; and (ii) Capable of having the compartment pressure controlled from inside the PVHO; (8) Have viewports that allow observation of occupants from the outside; (9) Have viewports that meet the requirements of ASME PVHO–1 except those PVHO‘s approved under paragraph (b) of this section which have nonacrylic viewports; (10) Have means of illumination sufficient to allow an occupant to: (i) Read gages; and (ii) Operate the installed systems within each compartment; (11) Be designed and equipped to minimize sources of combustible materials and ignition; (12) Have a protective device on the inlet side of PVHO exhaust lines; (13) Have a means of extinguishing a fire in the interior; (14) Have a means of maintaining the oxygen content of the interior atmosphere below 25 percent surface equivalent by volume when pressurized with air as the breathing mixture; (15) Have a means of maintaining the interior atmosphere below 2 percent surface equivalent carbon dioxide by volume; (16) Have a means of overriding and controlling from the exterior all interior breathing and pressure supply controls; (17) Have a speech unscrambler when used with mixed-gas; (18) Have interior electrical systems that are designed for the environment in which they will operate to minimize the risk of fire, electrical shock to personnel, and galvanic action of the PVHO; and (19) Be tested after every repair, modification, or alteration to the pressure boundaries as required by §197.462. §197.330 – PVHO – Closed Bells (a) Except as provided in paragraph (b) of this section, each closed bell must meet the requirements of §197.328 and: (1) Have underwater breathing apparatus for each occupant stored inside each separately pressurized compartment; (2) Have an umbilical; (3) Have lifting equipment attached to the closed bell capable of returning the occupied closed bell when fully flooded to the dive location; (4) Be capable of recompressing on the surface to the maximum design diving depth;

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(5) Be constructed and equipped as required by §197.332; (6) Have an emergency locating device designed to assist personnel on the surface in acquiring and maintaining contact with the submerged PVHO if the umbilical to the surface is severed; (7) Have a capability to remove an injured diver from the water; and (8) Have a life support capability for the intact closed bell and its occupants for: (i) Twelve hours after an accident severing the umbilical to the surface when the umbilical to the surface is the only installed means of retrieving the closed bell; or (ii) A period of time, at least equal to 1 hour plus twice the time required to retrieve the bell from its designed op-erating depth and attach an auxiliary lifesupport system, after an accident severing the umbilical to the surface when the umbilical is one of the two independent installed means of retriev-ing the closed bell, each meeting the requirements of paragraph (a)(3) of this section. (b) A closed bell that does not meet the requirements of paragraphs (a)(3), (a)(4), and (a)(5) of this section, must be capable of attachment to another PVHO that: (1) Allows the transfer of personnel and diver‘s equipment under pressure from the closed bell to the PVHO; (2) Meets the requirements of paragraph (a)(3) of this section; (3) Is capable of attachment to a decompression chamber meeting the requirements of paragraphs (a)(4) and (a)(5) of this section; and (4) Allows the transfer of personnel and diver‘s equipment under pressure from the PVHO to the decompression chamber. §197.332 – PVHO – Decompression Chambers Each decompression chamber must: (a) Meet the requirements of §197.328; (b) Have internal dimensions sufficient to accommodate a diver lying in a horizontal position and another person tending the diver; (c) Have a capability for ingress and egress of personnel and equipment while the occupants are under pressure; (d) Have a means of operating all installed man-way locking devices, except disabled shipping dogs, from both sides of a closed hatch; (e) Have interior illumination sufficient to allow visual observation, diagnosis, and medical treatment of an occupant. (f) Have one bunk for each two occupants; (g) Have a capability that allows bunks to be seen over their entire lengths from the exterior; (h) Have a minimum pressure capability of: (1) 6 ATA, when used for diving to 300 fsw; or (2) The maximum depth of the dive, when used for diving operations deeper than 300 fsw, unless a closed bell meeting the requirements of §197.330(a) (3), (4), and (5) is used; (i) Have a minimum pressurization rate of 2 ATA per minute to 60 fsw and at least 1 ATA per minute thereafter; (j) Have a decompression rate of 1 ATA per minute to 33 fsw; (k) Have an external pressure gage for each pressurized compartment; (l) Have a capability to supply breathing mixtures at the maximum rate required by each occupant doing heavy work; and

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(m) Have a sound-powered headset or telephone as a backup to the communications system required by §197.328(c) (5) and (6), except when that communications system is a sound-powered system. §197.334 – Open Diving Bells Each open diving bell must: (a) Have an upper section that provides an envelope capable of maintaining a bubble of breathing mixture available to a diver standing on the lower section of the platform with his body through the open bottom and his head in the bubble; (b) Have lifting equipment capable of returning the occupied open bell to the dive location; (c) Have an umbilical; and (d) Be made of corrosion-resisting material or protected against and maintained free from injurious corrosion. §197.336 – Pressure Piping Piping systems that are not an integral part of the vessel or facility, carrying fluids under pressures exceeding 15 psig must: (a) Meet the ANSI Code; (b) Have the point of connection to the integral piping system of the vessel or facility clearly marked; and (c) Be tested after every repair, modification, or alteration to the pressure boundaries as set forth in §197.462. §197.338 – Compressed Gas Cylinders Each compressed gas cylinder must: (a) Be stored in a ventilated area; (b) Be protected from excessive heat; (c) Be prevented from falling; (d) Be tested after any repair, modification, or alteration to the pressure boundaries as set forth in §197.462; and (e) Meet the requirements of: (1) Part 54 of this chapter; or (2) 49 CFR 173.34 and 49 CFR part 178, subpart C. §197.340 – Breathing Gas Supply (a) A primary breathing gas supply for surface-supplied diving must be sufficient to support the following for the duration of the planned dive: (1) The diver. (2) The standby diver. (3) The decompression chamber, when required by §197.432(e)(2) or by §197.434(a) for the duration of the dive and for one hour after completion of the planned dive. (4) A decompression chamber when provided but not required by this subpart. (5) A closed bell when provided or required by §197.434(d). (6) An open bell when provided or required by §197.432(e)(4) or by §197.434(c). (b) A secondary breathing gas supply for surface-supplied diving must be sufficient to support the following: (1) The diver while returning to the surface. (2) The diver during decompression. (3) The standby diver. (4) The decompression chamber when required by §197.432(e)(2) or by §197.434(a) for the duration of the dive and one hour after the completion of the planned dive. (5) The closed bell while returning the diver to the surface.

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(6) The open bell while returning the diver to the surface. (c) A diver-carried reserve breathing gas supply for surface-supplied diving must be sufficient to allow the diver to: (1) Reach the surface. (2) Reach another source of breathing gas; or (3) Be reached by a standby diver equipped with another source of breathing gas for the diver. (d) A primary breathing gas supply for SCUBA diving must be sufficient to support the diver for the duration of the planned dive through his return to the dive location or planned pick-up point. (e) A diver-carried reserve breathing gas supply for SCUBA diving must be sufficient to allow the diver to return to the dive location or planned pick-up point from the greatest depth of the planned dive. (f) Oxygen used for breathing mixtures must: (1) Meet the requirements of Federal Specification BB–0–925a; and (2) Be type 1 (gaseous) grade A or B. (g) Nitrogen used for breathing mixtures must: (1) Meet the requirements of Federal Specification BB–N–411c; (2) Be type 1 (gaseous); (3) Be class 1 (oil free); and (4) Be grade A, B, or C. (h) Helium used for breathing mixtures must be grades A, B, or C produced by the Federal Government, or equivalent. (i) Compressed air used for breathing mixtures must: (1) Be 20 to 22 percent oxygen by volume; (2) Have no objectionable odor; and (3) Have no more than: (i) 1,000 parts per million of carbon dioxide; (ii) 20 parts per million carbon monoxide; (iii) 5 milligrams per cubic meter of solid and liquid particulates including oil; & (iv) 25 parts per million of hydrocarbons (includes methane and all other hydrocarbons expressed as methane). §197.342 – Buoyancy-Changing Devices (a) A dry suit or other buoyancy-changing device not directly connected to the exhaust valve of the helmet or mask must have an independent exhaust valve. (b) When used for SCUBA diving, a buoyancy-changing device must have an inflation source separate from the breathing gas supply. §197.344 – Inflatable Floatation Devices An inflatable floatation device for SCUBA diving must: (a) Be capable of maintaining the diver at the surface in a face-up position; (b) Have a manually activated inflation device; (c) Have an oral inflation device; (d) Have an over-pressure relief device; and (e) Have a manually operated exhaust valve. §197.346 – Diver’s Equipment (a) Each diver using SCUBA must have; (1) Self-contained underwater breathing equipment including:

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(i) A primary breathing gas supply with a cylinder pressure gage readable by the diver during the dive; and (ii) A diver-carried reserve breathing gas supply provided by: (A) A manual reserve (J valve); or (B) An independent reserve cylinder connected and ready for use; (2) A face mask; (3) An inflatable floatation device; (4) A weight belt capable of quick release; (5) A knife; (6) Swim fins or shoes; (7) A diving wristwatch; and (8) A depth gage. (b) Each diver using a heavyweight diving outfit must: (1) Have a helmet group consisting of helmet, breastplate, and associated valves and connections; (2) Have a diving dress group consisting of a basic dress that encloses the body (except for head and hands) in a tough, waterproof cover, gloves, shoes, weight assembly, and knife; (3) Have a hose group consisting of the breathing gas hose and fittings, the control valve, the lifeline, communications cable, and a pneumofathometer; and (4) Be provided with a helmet cushion and weighted shoes. (c) Each surface-supplied dive operation using a heavyweight diving outfit must have an extra breathing gas hose with attaching tools available to the standby diver. (d) Each diver using a lightweight diving outfit must have: (1) A safety harness; (2) A weight assembly capable of quick release; (3) A mask group consisting of a lightweight mask and associated valves and connections; (4) A diving dress group consisting of wet or dry diving dress, gloves, shoes or fins, and knife; and (5) A hose group consisting of the breathing gas hose and fittings, the control valve, the lifeline, communications cable, and a pneumofathometer (if the breaking strength of the communications cable is at least equal to that required for the lifeline, the communications cable can serve as the life-line). (e) Each surface-supplied air dive operation within the no-decompression limits and to depths of 130 fsw or less must have a primary breathing gas supply at the dive location. (f) Each surface-supplied dive operation outside the no-compression limits, deeper than 130 fsw, or using mixed-gas as a breathing mixture must have at the dive location: (1) A primary breathing gas supply; and (2) A secondary breathing gas supply. (g) Each diver diving outside the no-decompression limits, deeper than 130 fsw, or using mixed-gas must have a diver-carried reserve breathing gas supply except when using a heavy-weight diving outfit or when diving in a physically confining area. OPERATIONS §197.400 – Applicability Diving operations may only be conducted from a vessel or facility subject to the subpart if the regulations in this subpart are met.

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§197.402 – Responsibilities of the Person-in-Charge (a) The person-in-charge shall: (1) Be fully cognizant of the provisions of this subpart; (2) Prior to permitting any commercial diving operation to commence, have: (i) The designation of the diving supervisor for each diving operation as required by §197.210; (ii) A report on: (A) The nature and planned times of the planned diving operation; and (B) The planned involvement of the vessel or facility, its equipment, and its personnel in the diving operation. (b) Prior to permitting any commercial diving operation involving liveboating to commence, the person-in-charge shall insure that: (1) A means of rapid communications with the diving supervisor while the diver is entering, in, or leaving the water is established; and (2) A boat and crew for diver pickup in the event of an emergency is provided. (c) The person-in-charge shall insure that a boat and crew for SCUBA diver pickup is provided when SCUBA divers are not line-tended from the dive location. (d) The person-in-charge shall coordinate the activities on and of the vessel or facility with the diving supervisor. (e) The person-in-charge shall insure that the vessel or facility equipment and personnel are kept clear of the dive location except after coordinating with the diving supervisor. §197.404 – Responsibilities of the Diving Supervisor (a) The diving supervisor shall: (1) Be fully cognizant of the provisions of this subpart; (2) Be fully cognizant of the provisions of the operations manual required by §197.420; (3) Insure that diving operations conducted from a vessel or facility subject to this subpart meet the regulations in this subpart; (4) Prior to the commencement of any commercial diving operation, provide the report required by §197.402 to the person-in-charge; (5) Coordinate with the person-in-charge any changes that are made to the report required by §197.402; and (6) Promptly notify the person-in-charge of any diving related casualty, accident, or injury. (b) The diving supervisor is in charge of the planning and execution of the diving operation including the responsibility for the safety and health of the dive team. §197.410 – Dive Procedures (a) The diving supervisor shall insure that: (1) Before commencing diving operations, dive team members are briefed on: (i) The tasks to be undertaken; (ii) Any unusual hazards or environmental conditions likely to affect the safety of the diving operation; and (iii) Any modifications to the operations manual or procedures including safety procedures necessitated by the specific diving operation; (2) The breathing gas supply systems, masks, helmets, thermal protection, when provided, and bell lifting equipment, when a bell is provided or required, are inspected prior to each diving operation;

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(3) Each diver is instructed to report any physical problems or physiological effects including aches, pains, current illnesses, or symptoms of decompression sickness prior to each dive; (4) A depth, bottom time profile, including any breathing mixture changes, is maintained at the dive location for each diver during the dive, except that SCUBA divers shall main-tain their own profiles; (5) A two-way voice communication system is used between: (i) Each surface-supplied diver and a dive team member at the dive location or bell (when provided); and (ii) The bell (when provided) and the dive location; (6) A two-way communication system is available at the dive location to obtain emergency assistance; (7) After the completion of each dive; (i) The physical condition of the diver is checked by: (A) Visual observation; and (B) Questioning the diver about his physical well-being; (ii) The diver is instructed to report any physical problems or adverse physiological effects including aches, pains, current illnesses, or symptoms of decompression sickness or gas embolism; (iii) The diver is advised of the location of an operational decompression chamber; and (iv) The diver is alerted to the potential hazards of flying after diving; (8) For any dive outside the no-decompression limits, deeper than 130 fsw, or using mixed-gas as a breathing mixture: (i) A depth, time, decompression profile including breathing mixture changes is maintained for each diver at the dive location; (ii) The diver is instructed to remain awake and in the vicinity of the dive location decompression chamber for at least one hour after the completion of a dive, decompression, or treatment; and (iii) A dive team member, other than the diver, is trained and available to operate the decompression chamber; and (9) When decompression sickness or gas embolism is suspected or symptoms are evident, a report is completed containing: (i) The investigation for each incident including: (A) The dive and decompression profiles; (B) The composition, depth, and time of breathing mixture changes; (C) A description of the symptoms including depth and time of onset; and (D) A description and results of the treatment; (ii) The evaluation for each incident based on: (A) The investigation; (B) Consideration of the past performance of the decompression table used; and (C) Individual susceptibility; and (iii) The corrective action taken, if necessary, to reduce the probability of recurrence. (b) The diving supervisor shall ensure that the working interval of a dive is terminated when he so directs or when: (1) A diver requests termination; (2) A diver fails to respond correctly to communications or signals from a dive team member; 6-58

(3) Communications are lost and cannot be quickly reestablished between: (i) The diver and a dive team member at the dive location; or (ii) The person-in-charge and the diving supervisor during liveboating operations; or (4) A diver begins to use his diver-carried reserve breathing gas supply. §197.420 – Operations Manual (a) The diving supervisor shall: (1) Provide an operations manual to the person-in-charge prior to commencement of any diving operation; and (2) Make an operations manual available at the dive location to all members of the dive team. (b) The operations manual must be modified in writing when adaptation is required because of: (1) The configuration or operation of the vessel or facility; or (2) The specific diving operation as planned. (c) The operations manual must provide for the safety and health of the divers. (d) The operations manual must contain the following: (1) Safety procedures and checklists for each diving mode used. (2) Assignments and responsibilities of each dive team member for each diving mode used. (3) Equipment procedures and checklists for each diving mode used. (4) Emergency procedures for: (i) Fire; (ii) Equipment failure; (iii) Adverse environmental conditions including, but not limited to, weather and sea state; (iv) Medical illness; and (v) Treatment of injury. (5) Procedures dealing with the use of: (i) Hand-held power tools; (ii) Welding and burning equipment; and (iii) Explosives. SPECIFIC DIVING MODE PROCEDURES §197.430 – SCUBA Diving The diving supervisor shall insure that: (a) SCUBA diving is not conducted: (1) Outside the no-decompression limits; (2) At depths greater than 130 fsw; (3) Against currents greater than one (1) knot unless line-tended; and (4) If a diver cannot directly ascend to the surface unless line-tended; (b) The SCUBA diver has the equipment required by §197.346(a); (c) A standby diver is available while a diver is in the water; (d) A diver is line-tended from the surface or accompanied by another diver in the water in continuous visual contact during the diving operation; (e) When a diver is in a physically confining space, another diver is stationed at the underwater point of entry and is line-tending the diver; and

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(f) A boat is available for diver pickup when the divers are not line-tended from the dive location. §197.432 – Surface-Supplied Air Diving The diving supervisor shall insure that: (a) Surface-supplied air diving is conducted at depths less than 190 fsw, except that dives with bottom times of 30 minutes or less may be conducted to depths of 220 fsw; (b) Each diving operation has a primary breathing gas supply; (c) Each diver is continuously tended while in the water; (d) When a diver is in a physically confining space, another diver is sta-tioned at the underwater point of entry and is line-tending the diver; (e) For dives deeper than 130 fsw or outside the no-decompression limits: (1) Each diving operation has a secondary breathing gas supply; (2) A decompression chamber is ready for use at the dive location; (3) A diving stage is used except when a bell is provided; (4) A bell is used for dives with an in-water decompression time greater than 120 minutes, except when the diver is using a heavy-weight diving outfit or is diving in a physically confining space; (5) A separate dive team member tends each diver in the water; (6) A standby diver is available while a diver is in the water; and (7) Each diver has a diver-carried reserve breathing gas supply except when using a heavy-weight diving outfit or when diving in a physically confining space; and (f) The surface-supplied air diver has the equipment required by §197.346 (b) or (d). §197.434 – Surface-Supplied Mixed-Gas Diving The diving supervisor shall insure that: (a) When mixed-gas diving is conducted, a decompression chamber or a closed bell meeting the requirements of §197.332 is ready for use at the dive location; (b) A diving stage is used except when a bell is provided; (c) A bell is used for dives deeper than 220 fsw or when the dive involves in-water decompression times greater than 120 minutes, except when the diver is using a heavy-weight diving outfit or is diving in a physically confining space; (d) A closed bell is used for dives at depths greater than 300 fsw, except when diving is conducted in a physically confining space; (e) A separate dive team member tends each diver in the water; (f) A standby diver is available during all nonsaturation dives; (g) When saturation diving is conducted: (1) A standby diver is available when the closed bell leaves the dive location until the divers are in saturation; and (2) A member of the dive team at the dive location is a diver able to assist in the recovery of the closed bell or its occupants, if required; (h) When closed bell operations are conducted, a diver is available in the closed bell to assist a diver in the water; (i) When a diver is in a physically confining space, another diver is stationed at the underwater point of entry and is line-tending the diver; (j) Each diving operation has a primary and secondary breathing gas supply meeting the requirements of §197.340; and (k) The surface-supplied mixed-gas diver has the equipment required by §197.346 (b) or (d). §197.436 – Liveboating

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(a) During liveboating operations, the person-in-charge shall insure that: (1) Diving is not conducted in seas that impede station-keeping ability of the vessel; (2) Liveboating operations are not conducted: (i) From 1 hour after sunset to 1 hour before sunrise; or (ii) During periods of restricted visibility; (3) The propellers of the vessel are stopped before the diver enters or exits the water; and (4) A boat is ready to be launched with crew in the event of an emergency. (b) As used in paragraph (a)(2)(ii) of this section, restricted visibility means any condition in which vessel navigational visibility is restricted by fog, mist, falling snow, heavy rainstorms, sandstorms or any other similar causes. (c) During liveboating operations, the diving supervisor shall insure that: (1) Diving is not conducted at depths greater than 220 fsw; (2) Diving is not conducted in seas that impede diver mobility or work function; (3) A means is used to prevent the diver‘s hose from entangling in the propellers of the vessel; (4) Each diver carries a reserve breathing gas supply; (5) A standby diver is available while a diver is in the water; (6) Diving is not conducted with in-water decompression times greater than 120 minutes; and (7) The person-in-charge is notified before a diver enters or exits the water. PERIODIC TESTS AND INSPECTIONS OF DIVING EQUIPMENT §197.450 – Breathing Gas Tests The diving supervisor shall insure that: (a) The output of each air compressor is tested and meets the requirements of §197.340 for quality and quantity by means of samples taken at the connection point to the distribution system: (1) Every 6 months; and (2) After every repair or modification. (b) Purchased supplies of breathing mixtures supplied to a diver are checked before being placed on line for (1) Certification that the supply meets the requirements of §197.340; and (2) Noxious or offensive odor and oxygen percentage; (c) Each breathing supply system is checked, prior to commencement of diving operations, at the umbilical or underwater breathing apparatus connection point for the diver, for noxious or offensive odor and presence of oil mist; and (d) Each breathing supply system, supplying mixed-gas to a diver, is checked, prior to commencement of diving operations, at the umbilical or underwater breathing apparatus connection point for the diver, for percentage of oxygen. §197.452 – Oxygen Cleaning The diving supervisor shall ensure that equipment used with oxygen or oxygen mixtures greater than 40 per-cent by volume is cleaned of flammable materials: (a) Before being placed into service; and (b) After any repair, alteration, modification, or suspected contamination. §197.454 – First Aid and Treatment Equipment

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The diving supervisor shall ensure that medical kits are checked monthly to insure that all required supplies are present. § 197.456 – Breathing supply hoses. (a) The diving supervisor shall insure that: (1) Each breathing supply hose is pressure tested prior to being placed into initial service and every 24 months thereafter to 1.5 times its maximum working pressure; (2) Each breathing supply hose assembly, prior to being placed into initial service and after any repair, modification, or alteration, is tensile tested by: (i) Subjecting each hose-to-fitting connection to a 200 pound axial load; and (ii) Passing a visual examination for evidence of separation, slippage, or other damage to the assembly; (3) Each breathing supply hose is periodically checked for: (i) Damage which is likely to affect pressure integrity; and (ii) Contamination which is likely to affect the purity of the breathing mixture delivered to the diver; and (4) The open ends of each breathing supply hose are taped, capped, or plugged when not in use. (b) To meet the requirements of paragraph (a)(3) of this section, each breathing supply hose must be: (1) Carefully inspected before being shipped to the dive location; (2) Visually checked during daily operation; and (3) Checked for noxious or offensive odor before each diving operation. §197.458 – Gages and Timekeeping Devices The diving supervisor shall insure that: (a) Each depth gage and timekeeping device is tested or calibrated against a master reference gage or time-keeping device every 6 months; (b) A depth gage is tested when a discrepancy exists in a depth gage reading greater than 2 percent of full scale between any two gages of similar range and calibration; (c) A timekeeping device is tested when a discrepancy exists in a timekeeping device reading greater than one-quarter of a minute in a 4-hour period between any two timekeeping devices; and (d) Each depth gage and timekeeping device is inspected before diving operations are begun. §197.460 – Diving Equipment The diving supervisor shall insure that the diving equipment designated for use in a dive under §197.346 is inspected before each dive. §197.462 – Pressure Vessels and Pressure Piping (a) The diving supervisor shall ensure that each pressure vessel, including each volume tank, cylinder and PVHO, and each pressure piping system is examined and tested as required by this section and after any repair, modification or alteration to determine that they are in satisfactory condition and fit for the service intended. (b) Pressure vessels and pressure piping shall be examined annually for mechanical damage or deterioration. Any defect that may impair the safety of the pressure vessel or piping shall be repaired and pressure tested to the satisfaction of the Officer-in- Charge, Marine Inspection. (c) The following tests shall be conducted at least every three years: (1) All piping permanently installed on a PVHO shall be pressure tested.

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(2) PVHOs subject to internal pressure shall be leak tested at the maximum allowable working pressure using the breathing mixture normally used in service. (3) Equivalent nondestructive testing may be conducted in lieu of pressure testing. Proposals to use non-destructive testing in lieu of pressure testing shall be submitted to the Officer-in-Charge, Marine Inspection. (d) Unless otherwise noted, pressure tests conducted in accordance with this section shall be either hydrostatic tests or pneumatic tests. (1) When a hydrostatic test is conducted on a pressure vessel, the test pressure shall be no less than 1.25 times the maximum allowable working pressure. (2) When a pneumatic test is con-ducted on a pressure vessel, the test pressure shall be the maximum allow-able working pressure stamped on the nameplate. (3) When a pneumatic test is conducted on piping, the test pressure shall be no less than 90 percent of the setting of the relief device. (4) Pressure tests shall be conducted only after suitable precautions are taken to protect personnel and equipment. (5) When pressure tests are conducted on pressure vessels or pressure piping, the test pressure shall be maintained for a period of time sufficient to allow examination of all joints, connections and high stress areas. RECORDS §197.480 – Logbooks (a) The person-in-charge of a vessel or facility, that is required by 46 U.S.C. 11301 to have an official logbook, shall maintain the logbook on form CG–706. (b) The person-in-charge of a vessel or facility not required by 46 U.S.C. 11301 to have an official logbook, shall maintain, on board, a logbook for making the entries required by this subpart. (c) The diving supervisor conducting commercial diving operations from vessel or facility subject to this subpart shall maintain a logbook for making the entries required by this subpart. §197.482 – Logbook Entries (a) The person-in-charge shall insure that the following information is recorded in the logbook for each commercial diving operation: (1) Date, time, and location at the start and completion of dive operations. (2) Approximate underwater and surface conditions (weather, visibility, temperatures, and currents). (3) Name of the diving supervisor. (4) General nature of work performed. (b) The diving supervisor shall insure that the following information is recorded in the logbook for each commercial diving operation: (1) Date, time, and location at the start and completion of each dive operation. (2) Approximate underwater and surface conditions (weather, visibility, temperatures, and currents). (3) Names of dive team members including diving supervisor. (4) General nature of work performed. (5) Repetitive dive designation or elapsed time since last hyperbaric exposure if less than 24 hours for each diver. (6) Diving modes used. (7) Maximum depth and bottom time for each diver. (8) Name of person-in-charge.

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(9) For each dive outside the no-decompression limits, deeper than 130 fsw, or using mixed-gas, the breathing gases and decompression table designations used. (10) When decompression sickness or gas embolism is suspected or symptoms are evident; (i) The name of the diver; and (ii) A description and results of treatment. (11) For each fatality or any diving related injury or illness that results in incapacitation of more than 72 hours or requires any dive team member to be hospitalized for more than 24 hours: (i) The date; (ii) Time; (iii) Circumstances; and (iv) Extent of any injury or illness. (c) The diving supervisor shall insure that the following is recorded in the logbook for each diving operation deviating from the requirements of this subpart: (1) A description of the circumstances leading to the situation. (2) The deviations made. (3) The corrective action taken, if appropriate, to reduce the possibility of recurrence. (d) The diving supervisor shall insure that a record of the following is maintained: (1) The date and results of each check of the medical kits. (2) The date and results of each test of the air compressor. (3) The date and results of each check of breathing mixtures. (4) The date and results of each check of each breathing supply system. (5) The date, equipment cleaned, general cleaning procedure, and names of persons cleaning the diving equipment for oxygen service. (6) The date and results of each test of the breathing supply hoses and system. (7) The date and results of each inspection of the breathing gas supply system. (8) The date and results of each test of depth gages and timekeeping devices. (9) The date and results of each test and inspection of each PVHO. (10) The date and results of each inspection of the diving equipment. (11) The date and results of each test and inspection of pressure piping. (12) The date and results of each test and inspection of volume tanks and cylinders. (e) The diving supervisor shall insure that a notation concerning the location of the information required under paragraph (d) is made in the logbook. NOTE: 46 U.S.C. 11301 requires that certain entries be made in an official logbook in addition to the entries required by this section; and 46 U.S.C. 11302 prescribes the manner of making those entries. §197.484 – Notice of Casualty (a) In addition to the requirements of subpart 4.05 of this chapter and 33 CFR 146.30, the person-in-charge shall notify the Officer-in-Charge, Marine Inspection, as soon as possible after a diving casualty occurs, if the casualty involves any of the following: (1) Loss of life. (2) Diving-related injury to any person causing incapacitation for more than 72 hours. (3) Diving-related injury to any person requiring hospitalization for more than 24 hours. (b) The notice required by this section must contain the following: (1) Name and official number (if applicable) of the vessel or facility.

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(2) Name of the owner or agent of the vessel or facility. (3) Name of the person-in-charge. (4) Name of the diving supervisor. (5) Description of the casualty including presumed cause. (6) Nature and extent of the injury to persons. (c) The notice required by this section is not required if the written report required by §197.486 is submitted within 5 days of the casualty. §197.486 – Written Report of Casualty The person-in-charge of a vessel or facility for which a notice of casualty was made under §197.484 shall submit a report to the Officer-in-Charge, Marine Inspection, as soon as possible after the casualty occurs, as follows: (a) On Form CG–2692, when the diving installation is on a vessel. (b) Using a written report, in narrative form, when the diving installation is on a facility. The written report must contain the information required by §197.484. (c) The report required by this section must be accompanied by a copy of the report required by §197.410(a)(9) when decompression sickness is involved. (d) The report required by this section must include information relating to alcohol or drug involvement as required by §4.05–12 of this chapter. §197.488 – Retention of Records After Casualty (a) The owner, agent, or person-in-charge of a vessel or facility for which a report of casualty is made under §197.484 shall retain all records onboard that are maintained on the vessel or facility and those records required by this subpart for 6 months after the report of a casualty is made or until advised by the Officer-in-Charge, Marine Inspection, that records need not be retained onboard. (b) The records required by paragraph (a) of this section to be retained on board include, but are not limited to, the following: (1) All logbooks required by §197.480. (2) All reports required by §197.402(a)(2)(ii), §197.404(a)(4), §197.410(a)(9). (c) The owner, agent, person-in-charge, or diving supervisor shall, upon request, make the records described in this section available for examination by any Coast Guard official authorized to investigate the casualty.

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APPENDIX A – Part §197 – AIR NO–DECOMPRESSION LIMITS The following table gives the depth versus bottom time limits for single, no- decompression, air dives made within any 12-hour period. The limit is the maximum bottom time in minutes that a diver can spend at that depth without requiring decompression beyond that provided by a normal ascent rate of 60 fsw per minute. (Although bottom time is concluded when ascent begins, a slower ascent rate would increase the bottom time thereby requiring decompression.) An amount of nitrogen remains in the tissues of a diver after any air dive, regardless of whether the dive was a decompression or no decompression dive. Whenever another dive is made within a 12- hour period, the nitrogen remaining in the blood and body tissues of the diver must be considered when calculating his decompression.

AIR NO-DECOMPRESSION LIMITS Depth (feet): No-decompression limits (minutes) 35 310 40 200 50 100 60 60 70 50 80 40 90 30 100 25 110 20 120 15 130 10 Source: U.S. Navy Diving Manual

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Appendix C. RESUME OF J. MICHAEL WALSH

Draft Final Addendum to CDM APP C-1 2010-090 Remedial Investigation Activities, November 2010 Raritan Bay Slag Superfund Site, Sayreville, NJ Woods Hole Group PROFESSIONAL PROFILE

J. MICHAEL WALSH, B.S. Qualifications Summary Field Technician/Marine Vessel Captain  13 years of experience as a Captain, operating and Fields of Expertise maintaining marine vessels  Six years of Field Technician Design, deployment, retrieval, and maintenance of YSI experience moorings; baseline collection of water and sediment at potential  Benthic dredging and water drill sites, including CTD setup, box core assembly, sample quality monitoring survey acquisition, processing, custody, and oversight of experience. subcontractors; managing vessels including inspections and  Experience with mobilization licensing, regulated safety equipment, and safety training for and demobilization of crew/scientific personnel; equipment, sample collection and analysis, shipment of Higher Education samples, oversight and training of staff, and collection of hydrographic B.S., Geography, Environmental Concentration - Bridgewater data State College, Bridgewater, MA (1997)

Employment History

2010-Present Field Technician/Marine Vessel Captain, Woods Hole Group, Inc. 2008-2010 Environmental Consultant, J.M. Walsh Consulting 2004-2008 Master 45’ R/V Aquamonitor, Chief Scientist, Lead Field Technician, Battelle Ocean Sciences, Duxbury, MA 1997-2004 Commercial Fisherman/Self Employed Commercial Fisherman

Licenses, Certificates, and Training

 Master 100 ton Near Costal Captain’s License.  40 Hour HAZWOPER and current refreshers.  8 Hour HazSite Supervisor.  Complete Ground-Water Sampling Field Course (Nielsen Environmental Field School).  Possesses TWIC card.  40-hour Combined Basic and Advanced Shipboard Firefighting.  8-hour Elementary First Aid, CPR and AED.  12½-hour Personal Survival.  4½-hour Personal Safety and Social Responsibilities.  Assistance Towing.  Offshore Huet Survival Training. Woods Hole Group J. MICHAEL WALSH

Key Projects

Offshore Oil Exploration, Libya – Field Technician Shift lead for two-month survey in offshore Libyan waters for baseline collection of water and sediment at potential drill sites. CTD setup, box core assembly, sample acquisition, processing, custody, and oversight of subcontractors.

New Bedford Harbor Superfund Site Dredging Project for the U.S. Army Corp of Engineers, New Bedford, Massachusetts – Boat Captain/Field Consultant Provided scientific and technical advice during field effort for the transitioning contract team. Collected sediment cores, traps, grabs. Conducted water quality monitoring surveys, which included the deployment/retrieval of YSI moorings. Captained survey vessels in numerous sediment vibra/push core surveys.

New York Long Outfall Feasibility Study, Hazen and Sawyer, Jamaica Bay, New York – Chief Scientist/Field Lead Developed survey plans and reports. Provided oversight in the design, deployment, retrieval, and maintenance of YSI moorings for water quality monitoring.

Harbor and Outfall Monitoring Program, Massachusetts Water Resource Authority (MWRA), Boston, Massachusetts - Lead Technician Water column and Alexandrium (Red Tide) Rapid Response surveys. Mobilization and demobilization of equipment, sample collection and analysis, shipment of samples, oversight and training of staff, and collection of hydrographic data. Filtration of nutrients (including BSI, PP, TDNP, PCN, CHLa, and TSS); and titration of Dissolved Oxygen. Box coring and grab sampling and associated processing of benthic infauna and chemistry samples.

Multi-year surveys, Minerals Management Service, Prudhoe Bay, Alaska - Lead Field Technician Developed survey plans and reports, shipped equipment and samples. Performed benthic dredging and water quality monitoring surveys, conducted the deployment/retrieval of mussels and plankton tows, and collected sediment gravity cores and grabs.

USACE, New England District – Field Technician Conducted sediment core surveys for the Army Corp of Engineers for lab testing in support of environmental assessment throughout New England. Assisted in the collection and processing of vibracore sediment samples.

Northeast Gateway and Hubline LNG (Liquid Nitrogen Gas) Pipeline Projects, Boston, Massachusetts (Massachusetts Bay) – Field Technician Participated in baseline and post pipeline installation SPI (Sediment Profile Imaging) surveys. Collected and processed benthic sediment samples for both infauna and chemistry.

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