Amendment 0002_01 35 30.pdf

FY26 Sea Bright to Manasquan Renourishment SEABRIGHTRENOUR Amendment 0002 08/06/26

SECTION 01 35 30

MUNITIONS AND EXPLOSIVES OF CONCERN (MEC) ORDNANCE AND EXPLOSIVES SAFETY

SPECIALIST (OESS) CONSTRUCTION SUPPORT

01/26

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. Refer to

DESR 6055.09 ,

DDESB TP-18 ,

DODM 4715.26 ,

DODM 4140.72 ,

EM 385-1-1 , and

EM 385-1-97 indicated below.

DEPARTMENT OF DEFENSE (DOD)

DDESB TP-18 (2020) Department of Defense Explosive Safety Board (DDESB) TP-18 - Minimum Qualifications for Personnel Conducting Munitions and Explosives of Concern Related Activities

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2024) Safety -- Safety and Occupational Health (SOH) Requirements

1.2 SCOPE OF SECTION

The work outlined in this section encompasses the provision of Munitions and Explosives of Concern (MEC) safety support within the borrow area and beach renourishment site.

1.3 MEC IN Borrow Area

Describe previous MEC items and History of the borrow; Example: The borrow area for this project is located in the vicinity of a known World War I dumping site for Discarded Military Munitions (DMM). Previous items discovered were 37MM, 57MM, 3" Projectiles and various fuzes and boosters, information can be obtained from MEC probability assessment.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office

SECTION 01 35 30 Page 1 that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

MEC Safety and Work Plan ; G,DO

Prior to commencement of any work, including delivery of any plant, equipment or construction materials to the site, submit a MEC Safety and Work Plan for MEC safety support and avoidance.

The MEC Safety and Work Plan shall consist of the items as specified herein. Include MEC personnel qualifications.

Dredge Intake Screening Device ; G, DO

1.5 SAFETY REQUIREMENT

As indicated in EM 385-1-1 Safety -- Safety and Occupational Health (SOH) Requirement

1.6 UNEXPLODED ORDNANCE (UXO) TECHNICIANS

UXO Technicians will have the minimum qualifications as specified in DDESB TP-18 - Department of Defense Explosive Safety Board (DDESB) TP-18.

1.6.1 Land Based UXO Technicians

During beach-fill operations, provide a sufficient number of UXO Technicians for 24-hour, 7-days per week MEC support. MEC support will consist of a minimum of two (2) UXO Technicians, one of which will be UXO Technician III qualified. Provide MEC Training Awareness and inspect the dredge intake screening device (s) for damage and presence of MEC. UXO Technicians will comply with the "STANDARD OPERATING PROCEDURES FOR LAND BASED OESS PROVIDING MEC SUPPORT", which is included as Attachment B.

1.6.2 Hopper Dredging Only

If MEC is identified as being dredged from the borrow area in a frequency that interferes with project schedule, crew safety, and emergency response assets that cannot be addressed through mechanical modifications, the Government will determine if the following requirements are necessary.

a. Provide two UXO Technicians per dredge, one of which must be a UXO Technician III qualified. The UXO Technicians will provide 24-hour, 7-days per week MEC support aboard the dredge on a rotating watch basis. The UXO Technicians will provide MEC Training Awareness and will inspect the drag heads for damage and presence of MEC after each load has been taken aboard.

b. The UXO Technicians will determine the classification of MEC-like objects discovered, shall dislodge MEC from the drag head(s) if required, and shall properly safeguard the MEC. Contractor shall provide a dedicated crew boat with crew for transportation of the UXO Technicians, OESS, and MEC to a location as directed by the Government. No other persons other than the boat crew, UXO Technicians and an OESS if required shall be permitted on the crew boat during transportation of MEC.

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c. UXO Technicians will comply with the "STANDARD OPERATING PROCEDURES FOR OESS PROVIDING MEC SUPPORT ABOARD HOPPER DREDGES", which is included, as Attachment C. Provide support as required and specified in this attachment.

d. If UXO Technicians are required, do not continue dredging until they are on-board the dredge

1.7 GOVERNMENT-PROVIDED OESS

1.7.1 General

The Corps of Engineers Military Munitions Design Center will assign an OESS to oversee all MEC safety protocols and provide training for contractor personnel. The OESS will remain on-site, or be available within the project vicinity, to promptly address any issues that may arise throughout the beach-fill placement operations. Should a MEC or suspected MEC item be encountered, the contractor must immediately notify the OESS.

The OESS will then issue guidance, coordinate the appropriate emergency response, and ensure all safety measures are followed. Upon direction from the OESS, dredging operations shall cease without delay to allow inspection of intake and discharge screening devices, thereby preventing the inadvertent dredging and deposition of MEC onto the beach.

1.7.2 Pre-Construction Meeting

The OESS will attend the preconstruction meeting to answer any of the Contractor's questions concerning MEC.

1.7.3 MEC Safety and Work Plan Review

The OESS will review the Contractor's SSHP MEC Safety addendum to ensure MEC aspects are adequately addressed. The Contractor's MEC Safety shall communicate the Contractor's understanding of their roles and responsibilities in the management of dredging and dredged material placement operations to prevent MEC from being dredged and placed on the beach.

1.7.4 Worker Education (G)

The OESS will ensure that the contractor conducts MEC safety and awareness recognition training for the dredging vessel and shore-based workers. This training will be provided prior to the start of work on site, and to all newly reporting personnel assigned to the project who have not attended MEC training in the previous twelve months. MEC Training is required once per 12-month period. The MEC training video can be accessed at https://www.3rs.mil.

1.7.5 Quality Assurance

The OESS will monitor beach-fill operations on a periodic basis and will be on-site, or in the vicinity to address problems as they arise. Upon notification by the OESS that the intake screening system on the dredge, or the discharge screening system on the beach, has degraded and is not functioning as intended, stop work and corrective action will be taken to prevent MEC from being dredged and placed on the beach during material placement operations. The Contractor will submit a photo of the damage and repairs as needed to the COR with the daily report

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1.8 MEC Safety and Work Plan Requirements (G)

Prior to commencement of any work, including delivery of any plant, equipment, or construction materials to the site, the following will be reviewed.

1. Shop drawings and detailed descriptions of the required screening devices on the dredge intake and at the discharge end of the pipeline.

Also include the materials, equipment, procedures and personnel to be used in the construction, operations and oversight of such devices.

2. Personnel, equipment, and procedures to be used to perform visual inspections at the discharge end of the pipeline on the beach.

3. Measures to be followed if oversized material is discovered in the screening devices.

4. Measures to be followed if oversized material is identified as deposited on the beach.

5. Measures to be followed if MEC is discovered in the screening devices.

6. Measures to be followed if MEC is identified as deposited on the beach.

7. Measures to be followed if Chemical Warfare Material (CWM) is encountered or an item cannot be positively identified. See Attachments B and C.

1.9 DREDGE REQUIREMENTS

1.9.1 On-board Accommodations

Provide on-board accommodations and meals for two (2) UXO Technicians.

Include as part of the accommodations, internet access, and two bed spaces. Provide an on-board portable magazine/MEC containment vessel, as approved by an OESS, to securely store and transfer collected MEC items.

1.9.2 Hopper Dredges

Hopper dredges coming from a previous MEC project must ensure the dredge hopper has been flushed and is clear of residual material. During the dredge intake screen inspections, the hopper shall be inspected to ensure it is free of material. If residual material exists, conduct a hopper flush over a designated area until free of material. Flushing the hopper prior to departure of a MEC project should be conducted as a safe practice not to cross-contaminate material possibly containing MEC.

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PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION

3.1 SCREENING DEVICES

3.1.1 General

Prevent MEC from being placed on the beach by using a screening device placed on the dredge intake or in pipeline section prior to reaching the dredge pump, and at the discharge end of the pipeline on the beach. The required screening devices shall meet the following requirements:

a. The screening device on the dredge intake shall prevent the passage of any material greater than 1.25 inches in diameter. This includes all openings and relief ports. The openings on the screening device may have one dimension greater than the other. The maximum allowable opening is 1.25 inches x 6 inches.

b. Design the Discharge End Screening Device to retain all items 0.75 inches in diameter and larger. The openings on the screening device shall be of uniform dimension (i.e. a grid or a series of round holes;

slotted openings will not be permitted).

c. Construct the screening devices (e.g. baskets or mechanical fluidizer) using rugged steel or composite material, one-piece or welded members.

The devices shall cover the entire cross-sectional area, except where basket type devices are used on the discharge end. Relief windows in basket type devices will be permitted only to the side opposite the inflow and at least 12 inches from the bottom of the basket, or as directed by the OESS. Size and location of windows to prevent large items, and MEC items from escaping screening device during pumping operations. Keep screening devices in a level and horizontal position when using relief windows, during pumping operations.

d. Screening devices shall be removable for easy replacement if damaged.

Ensure screening devices provide a production rate that allows completion of all dredging and beach-fill placement within the contract duration.

e. Prior to commencement of any beach-fill work, provide a working demonstration on-site that intake and discharge screening devices meet all requirements specified herein, and that the devices operate as designed.

f. Maintain adequate replacement parts and/or additional screening devices on site to ensure production does not stop due to damaged devices, or delays in the inspection process.

g. Provide minor adjustments to screening devices as directed by an OESS to accommodate varying types and amounts of material being screened at the beach, at no additional cost to the Government. As an example, relief windows, other than the required screen apertures, sometimes need to be enlarged, reduced, or relocated to minimize residual biological debris in the basket during the inflow process and for post flow MEC inspection of residual material.

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3.1.2 Dredge Cutterhead Screening Device

If a cutterhead dredge is used, provide an intake screening device for the cutterhead that meets the screen requirements specified above.

3.1.3 Drag Head Modifications

If a hopper dredge is used, design the drag heads to prevent objects greater than 3 inches in diameter from being trapped between drag head teeth or between the drag head teeth and the dredge intake screening device. Make adjustments as necessary in the event objects become trapped in these areas, at no additional cost to the Government. Modifications shall be completed and approved by the COR and OESS prior to resuming dredging operations. All modifications will be photographed and added to the daily report.

3.1.4 Inspection of Oversized Material

Design a method for inspection of all oversized material collected during beach-fill pumping operations. Every effort shall be made to flush all sand out of the residual material to allow for 100 percent inspection.

1. Contractor shall ensure no loss of oversized material from any system that involves the movement of the screening device or removing or handling of the oversized material to another location for inspection.

Minimize the shock of the contents during the transfer to a secondary basket (in the event MEC is present).

2. Keep uninspected material from comingling with inspected material.

" Secondary Baskets - Design any system that involves inspection of oversized material using a secondary basket with the following requirements:

1. Allow unrestricted entry or exit for the purpose of material inspection.

2. Sufficient size to allow the inspector to move around and rake through the material.

3. The amount of material placed in the secondary basket awaiting inspection shall not be more than 2 inches in depth, or as directed by the OESS to enable material to be 100 percent inspected.

Upon inspection of the material by UXO Technicians, material can either be reutilized or disposed of off-site.

Record all inspections by load number if applicable and document with photographs, and include in the daily report of operations specified in Section 31 24 00.00 18 BEACHFILL PLACEMENT

3.2 INSPECTION OF DREDGE INTAKE SCREEN

3.2.1 Prior to Start of Project

Prior to commencing dredging operations, a Government OESS and/or UXO Technician III will conduct an inspection of the MEC screens on the dredge, to verify that the condition and integrity of the screens meet the requirements specified herein. Provide a dedicated crew boat with crew for transportation of UXO Technicians to the dredge for inspection.

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3.2.2 SCREENING DEVICE INSPECTION

An inspection of the intake or pipeline screening device by trained contractor personnel will be conducted at a minimum of every 8 hours for pipeline dredging, and every load for hopper dredging to ensure its effectiveness by unless an OESS is available, to verify the screening device is still within specification and no MEC is present. Perform visual inspections of the interior and exterior of the discharge-end screening device for the presence of MEC after each in-flow cycle for hopper dredging, and a minimum of once every 8 hours for hydraulic dredging.

3.2.3 END OF PROJECT

Upon completion of dredging operations, conduct post inspections of all MEC screens by UXO Technicians. This will ensure no MEC remains in the screening devices and will ensure no MEC hazards leave the project site.

3.2.4 RECORD KEEPING

The contractor will record all inspections, document with photographs, and include in the daily report of operations specified in Section

31 24 00.00 18 BEACHFILL PLACEMENT.

3.3 INSPECTION OF DISCHARGE SCREENS

a. Prior to commencing beach-fill operations an inspection of discharge end screening devices by a qualified UXO Technician will verify that the condition and integrity of the screen meet the requirements specified herein.

b. Visual observation by contractor's personnel, shall be performed continuously while material is being placed on the beach.

c. A qualified UXO Technician will perform visual inspections of the interior and exterior of the discharge-end screening device for the presence of MEC after each cycle for hopper dredging, and a minimum of once every 8 hours for pipeline dredging.

d. Temporarily stop hydraulic dredging to allow for these inspections. At the contractors discretion, in-flow of material for hydraulic dredging may be Y valved to an alternate discharge screening device to allow for inspection of the primary screening device. Perform continual visual observations from outside the screening device during pumping of material.

e. Do not enter a screening device containing material until the screening device has been inspected and cleared by a qualified UXO Technician. Under no circumstances shall a screening device be emptied until inspected and cleared, unless the material is being relocated to a secondary basket or appropriate area of the beach for later inspection. After material has been inspected and cleared, remove all debris collected in the screening device. The debris may be temporarily stored on-site in a dumpster or roll-off while awaiting final disposition.

f. Upon completion of beach-fill operations, a post inspection of the discharge end screening devices will be performed by a qualified UXO

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Technician.

g. Contractor will record all inspections, document with photographs, and included in the daily report of operations specified in Section 35 31

00 BEACHFILL.

3.4 DETECTION OF MEC

3.4.1 Beach Support

Upon notification by the OESS, UXO Technicians, the Contractor's inspector, or the Government's QA inspector, that MEC larger than 1.25 inches (in its smallest dimension) is detected in a discharge end screening device, or any size MEC is detected on the beach, implement the following procedures:

1. Stop dredging and beach-fill work.

2. Notify an OESS.

4. Notify Dredge of a potential breech in the screening device, and an inspection of the device will be conducted before resuming operation.

4. All personnel shall withdraw 200 feet from the area where the MEC is detected, if work zone allows.

5. Contractor shall report the incident to the COR.

6. Once a suspect MEC item has been located, a qualified UXO Technician will assess the item for removal. In the event a MEC item cannot be safely removed an OESS will coordinate a response with a supporting EOD unit.

7. MEC found outside the screening device, the UXO Technicians will scan the affected beach area using an all-metals detector.

8. Do not resume any beach?fill or dredging activities until all screening devices and the affected beach area have been fully scanned and inspected by a qualified UXO Technician. Work may only recommence upon return-to-work notification from the OESS.

3.4.2 Dredge Support

Upon notification, that MEC is detected in a screening device, drag head, or on the deck, implement the following procedures:

Stop dredging and beach-fill work.

1. Do not attempt to dislodge or move suspected MEC item. Take photos, if possible, and contact either an OESS or the contractor's UXO Technicians.

2. The contractor will notify the OESS.

3. Contractor will coordinate for a crew boat to transport a qualified UXO Technicians to the Dredge. A qualified UXO Technician will travel to the dredge and assess the potential MEC item. The UXO Technician shall keep the contractor and the OESS informed of all actions during this process.

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4. An OESS will coordinate emergency response if needed after all information is gathered.

3.5 CONTRACTOR SUPPORT

The Contractor will provide assistance as directed by the designated emergency response agency, with all activities coordinated through the OESS. Such assistance may include, but is not limited to, operating equipment to excavate holes for the safe detonation of MEC items and/or supporting perimeter security during emergency response operations. At no time shall the Contractor be required or expected to expose site personnel to hazardous conditions during MEC-related emergency responses at the project site.

3.6 DETECTION AND REMOVAL OF OVERSIZED MATERIAL

Implement the following procedures when items that exceeds maximum allowable dimensions (1.25 inches) are detected in intake or discharge screening devices, or when found on the beach:

1. Stop dredging and beach-fill work.

2. Report the incident to an OESS.

3. Notify Dredge of a potential breech in the screening device, and an inspection of the device will be conducted before resuming operation.

4. Repair the intake and/or discharge screening devices if necessary.

Take digital photos to document damaged screening device(s) and effected repairs to an OESS. Submit photos to the COR with daily reports .

5. Hopper Dredge Only: Prior to resuming dredging operations, backflush the hopper to ensure oversized or MEC items do not remain in the hopper.

If dredging has resumed prior to discovery of oversized material or MEC items in the discharge end screening device, the dredge will be allowed to continue the current dredging cycle, pump-out the dredged material, return to the borrow area, and then the hopper shall be back-flushed in the borrow area only.

6. Beach-fill and/or dredging work shall not resume until a root cause analysis has positively identified the problem and steps have been taken to prevent recurrence. Affected area will be inspected for MEC as specified in Paragraph "DETECTION OF MEC" .

7. Once a screening device has undergone ten or more repairs, further repairs will no longer be considered sufficient, at that point, a formal corrective action must be implemented.

8. Any potential corrective action must be reviewed, discussed, and approved by the OESS, COR, and the Area Engineer prior to execution.

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3.7 MEASUREMENT AND PAYMENT

3.7.1 Hopper Dredge Modifications

Modifications recommended by an OESS, if required on a Hopper Dredge, will be negotiated in accordance with Contract Clause "CHANGES". All other work recommended in this section will not be measured for payment and all costs in connection therewith shall be included in the contract lump sum price for the Base Bid Item titled, "MEC Modifications and Monitoring".

Modifications recommended by an OESS, if required on a Hopper Dredge, will be negotiated in accordance with Contract Clause "CHANGES".

3.7.2 MEC Modifications and Monitoring

All costs in connection with any additional MEC Modifications and Monitoring required in connection with Option Bid Items titled "Beach-fill", shall be included in the contract unit price for the respective option Bid Items titled "Beach-fill". All costs associated with any non-production time (down time) related to the work specified in this section will be considered incidental to these bid items.

All costs in connection with any MEC Modifications and Monitoring required in connection with Bid Items titled "Beach-fill", shall be included in the contract unit price for the respective option Bid Items titled "Beach-fill". All costs associated with any non-production time (down time) related to the work specified in this section will be considered incidental to these bid items.

-- End of Section --

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