Blast Booth Replacement

ABRASIVE BLAST BOOTH REPLACEMENT & DEMOLITION

PURCHASE DESCRIPTION

OVERVIEW: This Purchase Description details administrative items, contractor responsibilities, project details, and Government responsibilities for the construction of two new abrasive blast booths, demolition of two existing abrasive blast booths, and restoration of the blast booth media collection pit to floor at Letterkenny Army Depot.

CONTRACTOR RESPONSIBILITIES - GENERAL

Work Hours – All work is to be performed between the hours of 7:00 AM and 3:00 PM Monday through Friday, except Federal Holidays and every other Friday. Work to be performed outside of these hours or on holidays, weekends, or Regular Days Off (RDOs) will be considered on a case by case basis and will require preapproval a minimum of 24 hours in advance. Approval should be considered the exception rather than the norm.

Security

Access and general protection/security policy and procedures. This standard language is for contractor employees with an area of performance within an Army controlled installation, facility, or area. Contractor and all associated sub-contractor’s employees shall provide all information required for background checks to meet installation access requirements to be accomplished by installation Provost Marshal Office, Director of Emergency Services or Security Office. Contractor workforce must comply with all personal identity verification requirements (FAR clause 52.204-9, Personal Identity Verification of Contractor Personnel) as directed by DOD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or installation change, the Government may require changes in contractor security matters or processes.

For contractors that do not require CAC, but require access to a DoD facility or installation. Contractor and all associated sub-contractors employees shall comply with adjudication standards and procedures using the National Crime Information Center Interstate Identification Index (NCIC-III) and Terrorist Screening Database (TSDB) (Army Directive 2014-05/AR 190-13), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative), or, at OCONUS locations, in accordance with status of forces agreements and other theater regulations.

Badges - Identification badges will be issued for admittance of personnel before performing work or service on this contract.  The identification badge is the property of the US Government and must be returned upon termination or demand.  The contractor/vendor agrees that he will ensure all badges issued to employees are returned to the Badge and Identification Section, Security Division, Letterkenny Army Depot promptly on termination of need or on expiration, whichever occurs first.  The badge office is located in Building 2, phone # 717-267-8003.  Hours of operation are 7:00 AM to 2:30 PM, Monday thru Friday, exclusive of Federal Holidays and every other Friday. Badge related issues outside of these hours or on holidays, weekends, or RDOs will be handled at the main gate.

Operational Security (OPSEC) - Per AR 530-1 Operations Security, the contractor employees must complete Level I OPSEC Awareness training. New employees must be trained within 30 calendar days of their reporting for duty and annually thereafter. Level I OPSEC Awareness training is available at the following website: https://www.letterkenny.army.mil/ctrresources/.

iWATCH Training - This standard language is for contractor employees with an area of performance within an Army controlled installation, facility, or area. The contractor and all associated sub-contractors shall brief all employees on the local iWATCH program (training standards provided by the requiring activity ATO). This local developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the COR. This training shall be completed within 30 calendar days of contract award and within 30 calendar days of new employees commencing performance with the results reported to the COR NLT 30 calendar days after contract award. iWATCH training is available at the following website: https://www.letterkenny.army.mil/ctrresources/.

Anti-Terrorism (AT) Level 1 Training - This standard language is for contractor employees with an area of performance within an Army controlled installation, facility, or area. All contractor employees, including subcontractor employees, requiring access to Army installations, facilities, and controlled-access areas shall complete AT Level I awareness training within 30 calendar days after the contract start date or effective date of incorporation of this requirement into the contract, whichever is applicable. The contractor shall submit certificates of completion for each affected contractor employee and subcontractor employee, to the COR or to the contracting officer, if a COR is not assigned, within 30 calendar days after completion of training by all employees and subcontractor personnel. AT Level I awareness training is available at the following website: https://www.letterkenny.army.mil/ctrresources/

Personal Protective Equipment (PPE)

The policy of LEAD’s safety office dictates entry into Location 1, 2, & 3 requires non-tinted eye protection, hearing protection, and toe protection at a minimum and it shall be worn at all times.

Hard hats are required to be worn when overhead hazards are present.

The contractor will provide all required PPE.

Fall Protection

The contractor shall have a written, established, OSHA-compliant fall protection program that contractor employees adhere to. Fall protection will be used by employees when required by OSHA standard.

Fall protection equipment will be provided by the contractor.

Respiratory Protection

The contractor shall have a written, established, OSHA-compliant respiratory protection program that contractor employees adhere to.

Respiratory protection will be required when work is conducted in the used media pit of Location 3.

Respiratory protection equipment will be provided by the contractor.

Training

Contractor employees shall be trained by the contractor prior to beginning work for the tasks the Contractor employees are expected to perform.

Contractor employees shall be trained on the hazardous material products they use or work around.

Contractor employees shall be trained on the use of fall protection, as applicable.

Contractor employees shall be trained on confined space, as applicable.

Contractor employees shall be trained on affected or authorized user lock out/tag out, as applicable.

Contractor employees shall be trained on the use of powered industrial equipment and licensed before use, as applicable.

Contractor employees shall be trained on the health effects of lead, cadmium, chromium, silica dust, and asbestos exposure.

Contractor employees shall be trained on the use of respiratory protection, as applicable.

Proof of training shall be provided to the LEAD COR in a digital format.  The proof of training shall be provided prior to the contractor employee conducting the task requiring the training. These trainings can be documented through certificates, group training rosters, Excel spreadsheets, or other similar means that can convey that the contractor completed the training.

Hazardous Material Management

The contractor will have a written, established, OSHA-compliant hazard communication (HAZCOM) program that contractor employees adhere to.

All chemical products brought onto LEAD property by the contractor require a U.S.-based, English, current safety data sheet (SDS) to accompany it.

A list of the hazardous materials products to be used and copies of SDSs will be provided to the LEAD COR, preferably in digital format.

Hazardous material containers will comply with OSHA HAZCOM requirements.

The work at Location 1 & 2 is not expected to encounter any existing onsite hazardous material which will need to be managed.

The existing Blast Booths and Media Collection Pit in Location 3 was built in the 1950s and has the potential to have hazardous material present which must be managed. These hazards could include, but are not limited to, lead, nickel, chromium, cadmium, and asbestos.

Permit-Required Confined Space

Work conducted in the used media pit will require a confined space permit approved by LEAD using LEAD AMLD 3666-R and notification to the LEAD Fire Department (717-267-9101) before entry.

The contractor will have a written, established, OSHA-compliant permit-required confined space program that contractor employees adhere to.

All confined space meters and equipment required will be provided by the contractor.

Any attendants required by a confined space permit will be provided by the contractor.

Lock Out/Tag Out

The contractor will have a written, established, OSHA-compliant lock out/tag out program for affected and authorized users that contractor employees adhere to.

All lock out/tag out operations will be conducted by LEAD industrial equipment maintenance and assured by contractor supervision.

The contractor will notify the COR immediately when there is potential for lock out/tag out to impact any depot operations or facility systems.

Powered Industrial Truck (PIT)/Industrial Equipment Use

The contractor will have a written, established, OSHA-compliant PIT program that contractor employees adhere to.  This will be confirmed by the contractor’s safety department by providing their safety program document or simply the PIT section of the document.

All PIT/Industrial Equipment, (including forklifts, scissor lifts, man lifts, earth movers, boom trucks, etc.) needed to conduct work will be provided by the contractor without exception.

Property damaging incidents while using PIT/industrial equipment will require immediate reporting to the LEAD COR and LEAD police.

A ground guide will be used to clear PIT/industrial equipment of obstacles within buildings when visibility is restricted.

Hot Work

Any activity that produces heat, sparks, or flames will require an approved Hot Work Permit using the LEAD AMLD 4596 form.

Hot work permits will be approved by the LEAD fire department each day that hot work is conducted. This daily requirement can only be reduced by the LEAD fire department and in writing.

Hot work attendants will be provided by the contractor.

All hot work will be conducted in accordance with NFPA 51B.

Deconfliction between contractor Work and Depot Operations:

The contractor shall provide an overall project plan/schedule 20 business days after contract award for the government to review and approve.  LEAD shall reply with any questions/concerns regarding the plan within 10 business days. A summary of the required utilities and general layout of the equipment shall be provided 120 days prior to the equipment delivery.  Detailed installation requirements to, to include installation schematics and schedule, shall be provided 60 days prior to equipment delivery. Also, the contractor shall provide a weekly schedule no later than the 10:00 EST on the Wednesday prior.

Any work expected to impact depot operations will be communicated to the LEAD project manager at least 1 week (168 hours) prior to work start.

Demonstration: The contractor is required to demonstrate the functionality of both blast booths through the range of operations prior to final signoff.

Training:

The contractor shall provide at least one training session for each blast booth on how to operate the system in its entirety.

The contractor shall provide at least one training session for each blast booth on how to perform preventative maintenance.

Manuals: The contractor shall provide operator instruction manuals (2 hard copy, 1 electronic), maintenance service manuals (1 hard copy, 1 electronic), and parts listing manuals (1 hard copy, 1 electronic) shall be provided for the blast booths.  These manuals shall be written in the English language.  A set of electrical schematics shall also be provided (1 hard copy, 1 electronic).

Maintenance Information & Schedule: The contractor shall provide a list of all major part numbers with manufacturer information for each. The contractor shall provide a preventative maintenance schedule (1 hard copy, 1 electronic). Any applicable maintenance codes or passwords shall be provided with the schedule.

Standard Products: All consumable parts (i.e. air filters) shall be new and regularly advertised products in order to provide a constant source of replacement parts and technical assistance.

Warranty: A minimum one year standard commercial warranty shall be furnished with the unit.

Environmental Protection

Compliance with Environmental Laws and Regulations:  Contractor shall comply with all applicable federal, state, and local environmental laws, statutes, regulations, executive orders, permits, Army regulations (with supplements), as well as Major Subordinate Command (MSC) and installation regulations and policies.  Contractor shall immediately report any conflicts between applicable federal, state, local environmental laws, statutes, executive orders, and provisions of Army Regulation 200-1, and any specifications within this contract to the Contracting Officer Representative (COR), as well as to the Chief, Environmental Management Division (EMD).

Compliance with Green Procurement Requirements:  Contractor shall follow Federal EPA Comprehensive Procurement guidelines (www.epa.gov/cpg) and Army Contracting Command Quick Guide (https://acc.aep.army.mil/accapps/ACCMAP/Documents/Quick-Guide-for-Sustainable-Procurement.docx) for acquisition of building materials and products and select materials that have a long life cycle; the least toxic materials; recyclable materials; materials that are resource-efficient; recovered materials; bio-based materials; materials with the maximum recycled content; materials harvested on a sustained yield basis; and products causing the least pollution during their manufacture, use, and reuse, to the extent possible. No acutely toxic materials, polychlorinated biphenyls (PCBs), formaldehyde, asbestos containing materials, asbestos compounds, or fragile or brittle materials, shall be procured or furnished unless specifically approved by the procuring activity. No Class 1 ozone depleting compounds (ODCs) or equipment requiring such substances, even if contained in a closed looped system, shall be procured or furnished for use at government installations. No Class 2 ODCs or equipment requiring such substances shall be procured or furnished for use unless specifically approved in writing by the procuring activity.

Notification of Federal and State Regulators:  Contractor shall immediately notify the Chief of the EMD and the COR, or their designated backups in their absence, of the arrival on site of any Federal, State, or DoD environmental regulator or enforcement agent or the receipt of any correspondence from a Federal or State environmental agency.

Inspections of Work Sites:  Contractor shall submit to potential Federal, State, Army and installation work site environmental regulatory inspections and/or investigations into noncompliance, and fully cooperate with such inspections/investigations by providing the appropriate records and documentation. Environmental regulatory agencies are authorized by law to inspect any work site for environmental compliance with regulatory requirements. The inspection will only require the work site Environmental Compliance Designee, or supervisor/manager to answer questions and/or escort the inspector to specific work site areas with the potential to affect environmental quality. If an inspection is conducted, it will not stop or disrupt ongoing contract activities, except, if the Contractor is requested by the regulatory inspector, the Contractor shall correct any regulatory problems during the inspection to the extent possible. Any regulatory inspections and their outcomes shall be communicated to the COR and to the Chief of the EMD or their appointed backups. Typical environmental work site inspections are conducted in less than 30 minutes with an approximate frequency of one inspection every two months. More frequent inspections may be required at the installation level and some may also require a close-out inspection prior to the Contractor vacating the work site. Inspections will focus on hazardous material management, solid and hazardous waste accumulation and disposal, Pollution Prevention (P2), air quality, and waste water management, to include storm water requirements. Contractor shall obtain the Environmental Compliance Checklist from the EMD at the start of the contract performance period.

Reporting Noncompliance:  Contractor shall immediately report any nonconformance or noncompliance with applicable Federal, State or Local environmental laws, Army and installation environmental regulations or policies, as well as any actions taken to address and correct the noncompliance, to the COR and Chief of the EMD, or their appointed backups in their absence.

Conformance with Environmental Management System:  Contractor shall adhere to the guidelines stipulated by LEAD's Environmental Management System (EMS) during the performance of the contracted work and shall take the necessary actions to identify, monitor, and control those contract operations and activities that pose a risk of contamination, or can negatively impact the natural or human environment.  Contractors shall ensure compliance with all applicable environmental laws and regulations during the performance of their work and shall be familiar with the EMS goals and objectives to minimize environmental impacts. Contractors shall familiarize themselves with LEAD’s Environmental Policy and shall communicate it to their employees and shall make a conscious effort to minimize energy consumption, water consumption, and regulated waste, LEAD’s top three environmental impacts, during the performance of their work. Contractors shall ensure measures are in place to check and calibrate test equipment, instruments, and maintain appropriate documents and records. Contractors shall implement practices that promote the conservation of natural resources, increase efficiency and enhance compliance with environmental laws and regulations. The Contractor shall reference section 5 of this checklist for additional guidance in support of the EMS goals.

Assignment of Environmental Compliance Designee (ECD):  Unless specified differently by the Chief of the EMD at the contract's kick-off meeting, the Contractor shall appoint an ECD for all contract work periods exceeding 180 consecutive days on site. Contractor shall appoint a primary and alternate ECD for each production shop or work area that uses or stores hazardous materials and/or generates hazardous wastes. Contractor ECDs shall monitor implementation of all environmental regulatory requirements, report all environmental noncompliance to the work site supervisor, correct all environmental noncompliances, and verify implementation of directed actions to correct identified environmental noncompliance. Contractor shall have at least one ECD on duty at all times at each shop or work area. Contractor shall require all personnel designated as ECDs to complete the General Environmental Awareness Training provided by the EMD as well as the initial ECD training and certification course through the installation or Major Subordinate Command (MSC) environmental compliance point of contact within 15 days of the start of contract performance. A Contractor's ECD's certification shall remain current throughout the contracted work. Contractor shall require ECDs to complete a re-certification course within 365 days of the completion of the initial certification course to maintain ECD certification. Failure to complete the re-certification course within 365 days will necessitate re-taking the initial course to maintain ECD certification. Contractor personnel certified as ECDs may perform other duties provided they do not prevent the performance of required ECD duties. Contractors may request a waiver of this requirement through the COR to the Chief of the EMD, if using or storing very small quantities of hazardous materials. The Chief of the EMD shall, at his or her discretion, approve or deny such waiver, in writing.

Competency Training for Contractor Personnel:  Contractor shall not allow personnel to perform any activities and/or tasks on AMC installations without proper and adequate qualifications or job competency training.  In the event of any identified noncompliance, the contractor shall, if requested, provide proof of contract personnel training or qualification (individual name, training/qualification type, training/qualification certificate, and date of training/qualification) to perform those contract activities associated with the identified noncompliance.

Generation of Solid Waste:  Contractor shall remove from the installation and dispose of all solid waste that is generated through their contracted work, and which cannot be recycled, to an approved and permitted off-post disposal facility.

Submit in writing the quantities of waste removed and quantities recycled to the Chief of the EMD or designee on a monthly basis and at the expiration of the contract. The submittal shall include the date of disposal/recycling, the disposal/recycling facility, the types of material disposed/recycled and each of the quantities of materials disposed of and recycled by weight.

The Contractor shall establish a program to promote cost-effective waste reduction in all operations and facilities covered by the contract. This includes collection, separation, and processing products or other materials recovered from solid waste streams for use in the form of raw materials.

The Contractor shall make maximum effort to reduce and prevent waste and comply with Executive Order 13693 and the installation's waste management requirements. Upon completion of the contracted work, the Contractor shall conduct final clean-up of the work site, containerize any debris, and haul it away for appropriate disposal at no additional cost to the government. The COR or an EMD Representative shall be contacted for approval of the final clean-up work.

Generation of Hazardous Waste:  Contractor shall abide by the guidelines stipulated in LEAD EMSP 21-17, Waste Management and shall assign all hazardous waste management responsibilities to the appointed ECD. Contractor shall contact the Chief of the EMD to obtain technical assistance from the installation's Hazardous Waste Program Manager who will assist the ECD with achieving and maintaining compliance with hazardous waste storage and disposal requirements. The EMD will provide hazardous waste drums for the Contractor to containerize hazardous waste generated through the contracted work. Where liquid hazardous waste is to be stored, the Contractor shall provide appropriate secondary containment and ensure containers are properly bonded and grounded where the chemical waste requires it. In addition, the Contractor shall be responsible for maintaining an appropriate spill response and control kit at all times. All spills are reportable and shall be coordinated with the COR and the Chief of the EMD. Contractor shall accumulate hazardous waste prior to disposal shipment in a satellite accumulation point at or near the point of generation, or in a less-than-90-day site, in accordance with Federal, State, Army, and installation regulations or policies. The Government is responsible for removal of all hazardous waste. Contractor shall contact the Hazardous Waste Program Manager for assistance. The Contractor shall provide a 24-hour notification to the Hazardous Waste Program Manager or designee that hazardous waste containers are ready for pick up and turn in by the EMD. The EMD will remove and dispose of manifested hazardous waste generated by contract activities from the installation to an approved, off-post, permitted hazardous waste disposal facility. The Contractor shall coordinate appropriately with the COR and the Hazardous Waste Program Manager the management of all hazardous waste to include profiling and final disposal. The Contractor shall perform a daily walk-through to ensure all hazardous material and all hazardous waste is properly secured and segregated by compatibility. Contractor shall reference section 5 of this checklist to ensure compliance with Federal, State and local laws and regulations.

Prevention of Spills:  The Contractor shall follow LEAD's Integrated Contingency Plan (ICP) which includes the Spill Prevention, Control, and Counter Measure Plan (SPCCP) Plan and reference the LEAD SPCCP and ICP if transporting, processing, storing, or in any way managing hazardous waste, hazardous material, petroleum-oils-lubricants, or other restricted items. The Contractor shall ensure secondary containment is in place any time liquid materials are stored on-site and shall provide his or her own spill response supplies and have them readily available at each work site. In case of a spill, the person in control of the spill site, or their designated representative, shall take appropriate action to protect workers and bystanders; contain the spill (if it can be done safely); secure the spill site; restrict ignition sources; and immediately contact the installation Fire and Emergency Services (Fire Department) by dialing 911, the COR and the Chief of the EMD. Contractors storing 1,320 gallons or more of any oil-based product in an aboveground storage tank at a construction site shall follow LEAD's ICP. The Contractor shall immediately respond to actual emergencies and accidents, prevent or mitigate associated adverse environmental impacts, and contact the installation's Fire and Emergencies Services.

Corrective Action for Noncompliance:  Contractor shall take immediate corrective action when given a verbal or written notice of environmental noncompliance or nonconformance by the COR or the Chief of the EMD. Failure or refusal by the Contractor to comply promptly may be grounds for the Contracting Officer to invoke the appropriate contractual remedies. This may cause all or part of the work to be stopped immediately until satisfactory corrective action has been taken by the Contractor.

Noise: Where applicable, Contractors shall ensure maximum use of low-noise emission products, as certified by the EPA. Blasting or use of explosives will not be permitted without written permission from the Contracting Officer, and then only during the designated times. Contractors shall confine any pile-driving operations to the period between 8 a.m. and 4 p.m., Monday through Friday, exclusive of holidays, unless otherwise specified.

Mercury:  Mercury is prohibited, unless specified otherwise, with the exception of mercury vapor lamps and fluorescent lamps. Dumping of mercury-containing materials and devices such as mercury vapor lamps, fluorescent lamps, and mercury switches in rubbish containers is prohibited. Contractors shall remove any mercury vapor lamps, fluorescent lamps or mercury containing switches without breaking, pack them to prevent breakage, and transport them out of the activity in an unbroken condition for disposal as directed by COR or the Chief of the EMD. The Contractor shall immediately report any instances of breakage or mercury spillage to the Chief of the EMD and the Contracting Officer. The Contractor shall contact the EMD any time there is a need for cleanup of a mercury spill area resulting from any work under this contract.

Universal Waste / e-Waste Management:  Universal waste including, but not limited to, some mercury containing building products such as fluorescent lamps, mercury vapor lamps, high pressure sodium lamps, CRTs, batteries, aerosol paint containers, electrical equipment containing PCBs, and consumed electronic devices, shall be managed in accordance with applicable environmental law and installation instructions. The Contractor shall coordinate the management of these types of waste with the COR and the Chief of the EMD.

Pollution Prevention / Hazardous Waste Minimization: The Contractor shall implement practices that reduce, eliminate, or prevent pollution at the source and make a conscious effort to minimize the use of hazardous materials and the generation of hazardous waste. Contractor shall consult with the EMD for suggestions and to obtain a copy of the installation's pollution prevention/hazardous waste minimization plan for use as reference material to reduce environmental impacts generated through their work.

Noncompliance Corrective Action: The contractor is responsible for remedying any function or component found not to be in compliance with the requirements set forth in this document.

Smoking Areas - Smoking is permitted in designated areas only.

Reporting Requirements

Immediately report any injuries to the LEAD COR

Immediately report any damage of LEAD-owned equipment or facilities to the LEAD COR and LEAD Police.

Immediately report any unexpected disruptions to LEAD process (power disruption, trigging an alarm, etc.) to the LEAD COR.

Work zone identification - Signage and mark-off tape shall be used around work and laydown areas.

Use of LEAD equipment: No use allowed.

PROJECT DETAILS - OVERVIEWLocation: There are three separate locations where the work of this project will be executed. See below for details about each of the 3 areas.

Location 1: Large Booth Construction Area – Open High Bay area in a newer building with space for the construction of a new large blast booth in close proximity to one of the outer walls. The floor is reinforced concrete with a depth of 10”-16”. Close to the proposed blast booth location is a utility manhole which must remain accessible and undisturbed by the construction. An open outdoor area located ~70’ from the blast booth location is intended for the dust collection system.

Location 2: Smaller Booth Construction Area – Mostly open Low Bay area in a newer space for the construction of a new smaller blast booth in close proximity to one of the outer walls. The floor is reinforced concrete with a depth of 10”-36” depending on location. An open outdoor area located 5’-50’ from the blast booth location is intended for the dust collection system.

Location 3: Existing Blast Booth Removal Area – High Bay area in an older section of one of the production buildings where two operational Blast Booths sit over an 11’ deep media collection pit classified as a permit required confined space. There are multiple pieces of fixed equipment, structural support beams, and other objects in the surrounding area where LEAD employees will be actively working.

PROJECT DETAILS - REQUIREMENTSBlast Booth Requirements: General – The following section details requirements that apply to both new blast booths. The section begins with an overview of each blast booth.

Drive Through Blast Booth: Location 1 shall have a large, fully operational, turnkey blast booth installed with an interior of 25’wide x 45’ long x 20’tall. This shall consist of the blast booth, the in-floor media collection sweeper system, the floor media recovery system, the media reclamation system, the dust collection system, the pressure blast equipment, the associated ductwork, and the electrical control system. The blast booth enclosure shall include wall panels, ceiling panels, doors, and explosion-proof LED lighting and fixtures, with all seals or caulking being explosion-proof. The entire booth shall be designed to be assembled indoors using bolt or bolt-like connections. All joints shall be sealed during assembly to prevent blast media and dust leakage. All labor, equipment, and materials required to prepare the site and assembly the booth (including electrical and compressed air utilities) shall be include. Supervision and technical documentation shall be included.

Drive-In Blast Booth: Location 2 shall have a small, fully operational, turnkey blast booth installed with an interior of 16’wide x 30’ long x 12’tall. This shall consist of the blast booth, the in-floor media collection sweeper system, the floor media recovery system, the media reclamation system, dust collection system, the pressure blast equipment, the associated ductwork, and the electrical control system. The blast booth enclosure shall include wall panels, ceiling panels, doors, and explosion-proof LED lighting and fixtures, with all seals or caulking being explosion-proof. The entire booth shall be designed to be assembled indoors using bolt or bolt-like connections. All joints shall be sealed during assembly to prevent blast media and dust leakage. All labor, equipment, and materials required to prepare the site and assembly the booth (including electrical and compressed air utilities) shall be include. Supervision and technical documentation shall be included.

Booth Floor:

The booth floors shall have a load capacity of 10,000 lb/sq ft and comply with 29 CFR 1910 Subpart D.

The booth floors shall be bar-type grating with a layer of 3/8” circle perforated sheet metal between the grate and the Media Recovery System to capture large debris.

Exhaust Ventilation:

Crossdraft (end to end) airflow is preferred with intake plenums in the ceiling and side exhaust plenums.

The rate of exhaust shall be 100 ft/min, sufficient to provide prompt clearance of the dust-laden air within the enclosure after the cessation of blasting.

The booths shall be exhaust ventilated in such a way that a continuous inward flow of air will be maintained at all openings in the enclosure during the blasting operation.

The ventilation shall utilize channel baffles inside the inlet to separate large dust particles directly into the media recovery system.

Air outlets should have an open extraction area to govern airflow such that airborne dust is extracted without carrying over large particles. The use of a 90 degree bend at the outlet is permittable for this purpose.

The construction, installation, inspection, and maintenance of exhaust systems shall conform to the principles and requirements set forth in ANSI/ASSP Z9.2 and ANSI/ASSP Z9. 4. Shall be built to meet or exceed the requirements of 29 CRF 1910 Subpart G, NFPA 68, NFPA 91, and other legal or incorporated by reference requirements.

Panels:

Wall and ceiling: Shall be a minimum of 14 gauge galvanized steel.

Walls shall be covered with removable & replaceable 0.25” minimum neoprene (or similar material with same or better noise reduction & wear protection) panels for noise reduction, reduce light glare, and protection of the metal wall.

Operator Doors:

Fall Protection (Interior/Booth Operators & Maintainers): The booths shall include at least 4 engineered anchor points (1 per each quadrant of the booth) installed in the booth ceiling rated to at least 5,000 lbs in accordance with 29 CFR 1926.502(d)(15).

Air Shower: The booths shall have one entry/exit air shower for blast media and debris removal from operator clothing.

Media Recovery System: General - The system shall be sized and designed to provide an endless supply of blast media under normal operating conditions.

Media Recovery System: Sweeper Floor

The booths shall have a full floor, fully automated, sweeper system embedded into the concrete floor for blast media recovery. The system shall be set down into the floor such that the booth floors are level with the floor surrounding the booth.

The sweeper system shall consist of channels with flexible rubber sweepers and metals combs that move through a stroke motion and a pass over motion (to return to the start position) such that media is only moved in one direction down the channel without backflow or jamming.

Each channel shall empty into a transverse channel that terminates into the Media Bucket Elevator.

Media Recovery System: Media Bucket Elevator - The sweeper floor system shall connect to a media bucket elevator for vertical transport and an air wash system for media separation.

Media Recovery System: Media Air Wash

The media bucket elevator shall discharge into an electro vibrating sieve to remove all large contaminate for transport to a Waste Collection Bin. Any unfiltered material will continue to the Media Air Wash.

Between the Air Wash and the extractor shall be an air plenum to slow the air stream and remove spent abrasive media for collection in the Waste Collection Bin.

A dust extractor shall remove any remaining dust and move it to the dust collector.

The Air Wash shall return good blast media to the Media Hopper.

Media Recovery System: Media Hopper - The Media Hopper shall have the capacity for an adequate amount of media to ensure an endless supply of blast media under normal operating conditions.

Dust Collection System:

The Dust Collection System shall be capable of providing an airflow of 100 feet per minute; thereby providing the removal of dust in the Blast Booths.

The Dust Collector shall be designed to pull any remaining dust from the Media Air Wash not collected from the associated Blast Booth.

The system shall be equipped with high efficiency cartridge filters capable of providing a minimum separation efficiency of 99.99% by weight, down to 0.5 microns.

Filters shall be automatically cleaned via back-flushing. The system shall be designed to eliminate uneven dust loading.

Dust collectors shall be set up so that the accumulated dust can be emptied and removed without contaminating other working areas.

Joints and connectors to the hopper will have an airtight seal.

The Dust Collection System shall be provided with means of return air to the building (see 3.1.16) and must be designed to prevent a vacuum or significant pressure drop during both normal operations and emergency operations (i.e. power loss).

Dust Collection System: Media Cyclone

The media reclamation system shall include a pneumatic cyclone upstream of the dust collector to remove approximately 70% of the dust from the associated blast booth and Media Air Wash exhaust prior to it entering the filters. The cyclone shall be located outside and desire to operate in such an environment.

The system shall be designed to maintain a dust velocity of 3,500 feet per minute and less than 2” wc (water column) pressure drop across the cyclone.

A 10” x 10” 2 hp rotary airlock shall be provided with a control panel for the media cyclone.

The Media Cyclone shall have replaceable abrasive resistant liners in the entire top section to provide structure wear protection and noise reduction. The liner shall be neoprene rubber at minimum of 3/8” thick (or a similar material with adequate thickness to provide same or increase protection).

A gasketed air-tight access door shall be provided for easy removal of the filter screen basket.

The cyclone system shall be designed to move all removed dust material into a large roll-off container (min clearance for roll-off of 20’ long x 7’ high x 11’ wide)

Vibration controls shall be installed at both the blower inlet(s) and outlet(s)

Return Air Duct & Filter

The Dust Collection System shall have a return air duct to return air to the building.

The Return Air Duct shall have HEPA after filters downstream of the abort gate mechanical explosion protection to ensure high quality air is returned to the building.  The cartridge filters shall have a minimum efficiency of 99.999% at .5 micron particle size.

Dust Collection System Controller (DCSC)

The Dust Collection System shall be controlled via a graphical user interface featuring both an analog and a digital display of the pressure drop across the filters.

The DCSC shall control the automatic backflushing of the filters such that back-flushing only occurs when filters are dirty.

The user interface shall allow for manipulation of timing, cleaning settings, and alarm settings.

Waste Collection Bin - The Dust Collection System shall be designed to direct large contaminants to a collection bin which can be emptied while the system is in use.

Pressure Blast Equipment: Blast hose & nozzle - The Blast hose shall be rated to 150 psi or greater. One 5/16 ID tungsten carbide, rubber jacketed nozzle shall be provided for each Blast Booth.

Pressure Blast Equipment: Operator remote controls - The pneumatic remote controls shall have a normally closed inlet valve and a normally open outlet valve.

Pressure Blast Equipment: Metering valve - One Thompson metering valve with tungsten carbide sleeves or similar equipment shall be provided with a self-sealing metering valve normally closed that can start and stop the media flow while the blast pot remains constantly pressurized. A spider above popup valve shall be included. A door interlock control valve shall be included. A gasketed tank cover with hose inlet adaptor shall be included.

Vertical Compressed Air Reservoir - Each Blast Booth shall have a compressed air reserve with at least 1,000 gallons of capacity to ensure uninterrupted booth operation. The Air Reservoirs shall be ASME certified and provide an operating capacity of at least 155 psi between -20⁰F and 400⁰F

Explosion Protection:

Explosion protection shall comply with NFPA 68 and NFPA 69, as applicable.

The Dust Collection System shall have mechanical explosion protection.

The Dust Collection System shall have a mechanical back draft damper on the inlet, a fast acting valve (aka abort gate) on the outlet, and an explosion vent on the cyclone and dust collector.

The Dust Collection System shall be designed with the necessary level of structural robustness to allow for the use of mechanical explosion protection.

Inspection/Access doors shall be provided for all dampers, valves (gates), and vents. Sensors shall be provided that indicate if a protection feature has been activated.

Dust concentration sensor shall be provided for each valve and damper. Locking mechanisms shall be provided for each vent and damper.

Electrical Parameters:

The primary booth voltage shall be 460 volt, 3 phase, 60 hz (hertz).

Booth lighting shall be 110 volt, 1 phase, 60 hz. A step-down transformer shall provide a fused 110 volt control circuit.

A motor starter shall be provided for the abrasive cleaner.

Control Panels shall be completely preassembled NEMA 12 enclosures with all control buttons, indicator lights, and meters mounted and clearly labeled for their particular function.

Bonding and Ground Points:

The blast nozzle and hose-line will be capable of being able to dissipate static charge through a grounding cable or preferably through a built-in grounding system.

Each booth will be properly earth grounded.

Bonding and grounding points will be ensured to work correctly.

Observation Windows: Both booths shall have one small observation window on or next to each operator door built of safety glass and an interior glass cover which can be moved out of the way remotely from the outside for viewing of the booth interior.

Operator Respirator Air Supply

 Both booths shall be equipped to provide the operators with a continuous flow of breathable air which will be free of harmful quantities of dusts, mists, or noxious gases, and must meet the requirements for supplied-air quality and use specified in 29 CFR 1910.134(i).

All breathable air fittings and connections shall be RPB for current operator equipment compatibility.

Fire Safety System:

Both booths shall have internal visual and auditory fire alarms which are tied into the building fire alarm system.

Both booths shall have internal fire detection equipment which triggers internal booths alarms and communicates the alarm to the building system.

The contractor shall install, connect, program, and demonstrate the booth fire safety system on both booths.

Noise Reduction: Vibration and noise shall be reduced to the maximum extent possible.

Nameplates Requirements – A corrosion resistant metal nameplate shall be securely attached to each blast booth in a conspicuous location and include the following information…

Nomenclature

Manufacturer’s Name

Manufacturer’s Model Designation

Manufacturer’s Serial Number

Input Voltage, Current, Phase, and Frequency (Hz)

Date of Manufacture

Blast Booth Requirements: Specific - Drive Through Blast BoothSize:

Interior 25’wide x 45’ long x 20’tall     

Exterior: As required however, all equipment, assemblies, and structures must be within project space envelope.

Operator Doors:

There shall be a minimum of 2 metal booth doors (one on each of the long sides of the booth, in addition to the air shower entrance/exit), creating a 3’ x 7’ opening, with an emergency exit light, fail safe interlocks to prevent booth operation if the door is open, and be operable from inside or outside of the booth.

The doors shall have a full gasket or similar feature to provide a dust tight seal and prevent blast media escape.

Main Work Doors:

Shall be designed to create a 18’wide x 18’tall (minimum) opening on both short ends of the booth. Construction shall be of 14 gauge galvanized steel panels. The main work door shall have fail safe interlocks sufficient to prevent operation of the booth if any part of the door were open.

All seams shall have an explosion-proof seal and flange to prevent media and dust leakage when doors are closed. Doors shall have fail safe interlocks.

Pressure Blast Equipment: Blast pots - The Blast Pots shall have a capacity of 8 cubic feet at a minimum such that an endless supply of blast media is supplied under normal operating conditions. The Blast Pots shall be double chambered. The Drive Through Blast Booth shall have 2 blast pots.

Lighting:

The booth shall be provided with LED light fixtures that sit above the booth on dust tight, explosion proof sealed safety glass. All lights shall be replaceable from outside/above the booth from within the guardrail system protected area of the booth roof which is accessed via a lift to the swing gate (see 3.2.7).

The LED fixtures shall utilize a standard light to fixture connection design such that replacement lights are readily available in the market.

The LED lighting shall provide a minimum illuminance of 2000 lux 4’ above the booth floor at a 5000K color.

Lifting Equipment:

The booth shall have a 4,000 lb capacity overhead crane with an air hoist & trolley. Headroom (hook to beam flange) shall be a maximum of 14”. The crane shall be able to be moved into a corner and protected by a cover when not in use.

Any energy-producing device must be explosion-proof and must meet or exceed the requirements of 29 CFR 1910.179.

The system shall conform to ASME B30.11 and B30.16. The system shall be designed and constructed in accordance with CMAA 74 class C, moderate service requirements. The hoist shall be in accordance with ASME HST-5 and HMI duty class A4.

Fall Protection (Exterior/Booth Top):

The booth shall be provided with a permanent guardrail system around the top edge of the booth in compliance with 29 CFR 1910.

The booth shall have at least 1 one swing gate portion that can be accessed via a man lift to allow for light replacement and any other required maintenance. Must comply with 29 CFR 1910.

The top of the booth (aka ceiling or roof) shall be capable of supporting a 300 pound person.

Wall Mounted 3-Axis Blast Lift: The Drive Through Blast Booth shall be provided with a total of two 3-Axis riders with one on each long side of the booth.

The platform height travel shall cover at least 20” to 27’ measured from the floor to the top of the guide rail.

The platform extension and retraction travel shall cover at least 4’6” to 13’ measured from the booth wall to the front of the lift. The platform lateral travel shall cover at least 18’ in both directions from the booth centerline.

The overall platform shall be 48” wide x 30” deep with a grating floor.

The lift shall have 4” high toe boards and 43.5” high guardrails.

The lift shall have a load capacity of 500 lbs or greater, not including the media blasting hose.

The lift shall have operator controls located in the center of the front guardrail with hand controls for height travel, extension/retraction travel, emergency down, and emergency stop at a minimum. The lift shall have foot pedal controls for lateral movement.

The lateral travel shall have variable speed of at least 40 feet per minute and the height & extension/retraction travel shall have a speed of 15±1 feet per minute.

The lift base shall have lift height controls, and emergency down, an emergency stop, and a main air shutoff with a lockout.

The lift shall have self-closing, self-locking gates on the left and right side for operator entry and exit.

The base of the lift shall be 96” wide with steps for the operator to climb into the lift. The lift shall have a brake to detect and arrest an uncontrolled descent.

The lift shall have operator harness safety attachment points.

The lift shall have sealed drivelines to prevent the intrusion of dust, grit, media, and debris into the lift mechanisms.

The whole system shall minimize maintenance through the use of minimal grease points and self-lubricating bushings.

The rider lifts must comply with applicable 29 CFR 1910 Subpart F standards.

Blast Booth Requirements: Specific - Drive-In Blast BoothSize:

Interior 16’wide x 30’ long x 12’tall     

Exterior: As required however, all equipment, assemblies, and structures must be within project space envelope.

Operator Doors:

There shall be a minimum of 1 metal booth door (on the opposite side from the air shower), creating a 3’ x 7’ opening, with an emergency exit light, fail safe interlocks to prevent booth operation if the door is open, and be operable from inside or outside of the booth.

The doors shall have a full gasket or similar feature to provide a dust tight seal and prevent blast media escape.

Main Work Doors:

Shall be designed to create a 12’wide x 12’tall (minimum) opening on both short ends of the booth. Construction shall be of 14 gauge galvanized steel panels. The main work door shall have fail safe interlocks sufficient to prevent operation of the booth if any part of the door were open.

All seams shall have an explosion-proof seal and flange to prevent media and dust leakage when doors are closed. Doors shall have fail safe interlocks.

Pressure Blast Equipment: Blast Pot - The Blast Pot shall have a capacity of 8 cubic feet at a minimum such that an endless supply of blast media is supplied under normal operating conditions. The Blast Pot shall be double chambered. The Drive-In Blast Booth shall have 1 blast pot.

Lighting:

The booth shall be provided with LED light fixtures that sit exterior to the booth in contact with a dust tight, explosion proof sealed safety glass barrier. All lights shall be replaceable from outside of the booth with sufficient access space to allow changing of the lights in the fixture.

The LED fixtures shall utilize a standard light to fixture connection design such that replacement lights are readily available in the market.

The LED lighting shall provide a minimum illuminance of 2000 lux 4’ above the booth floor at a 5000K color.

Lifting Equipment:

The booth shall be equipped with a 4,000 lb. monorail with a low headroom (10" maximum from hook to beam flange) air hoist/trolley.  The monorail shall extend from the center of the ceiling at one short end of the booth to the center of the ceiling at the other short end of the booth.

Any energy-producing device must be explosion-proof and must meet or exceed the requirements of 29 CFR 1910.179.

The system shall conform to ASME B30.11 and B30.16. The system shall be designed and constructed in accordance with CMAA 74 class C, moderate service requirements. The hoist shall be in accordance with ASME HST-5 and HMI duty class A4.

Blast Booth Spare Equipment: The components to replace two floor sweeper channels shall be provided as spare parts prior to signoff.

Existing Booth Demolition & Finish: Location 3 is to have the two existing blast booths and all ancillary booth equipment demolished, and the media collection pit cleared out & filled. This includes demolition of the entire dust collection systems (dust collectors, cyclones, HEPA filter plenums, ductwork, explosion protection equipment, and all electrical and pneumatic equipment).All labor, equipment, and materials required to remove the existing booth equipment (including electrical and compressed air utilities) and restore the sites shall be included. Supervision and technical documentation shall be included.

All utilities to the existing blast booth equipment shall be disconnected and pulled back to the source, junction box, or branch.

The existing booth equipment shall be broken down, palletized when able, and transported to an outside temporary storage area and stored in an organized fashion.

All filters, and dust and debris produced by the removal process shall be collected and placed in hazardous material storage containers provided by LEAD. Dust and debris may be contaminated with lead, asbestos, and chromates; therefore, proper precautions, in accordance with OSHA requirements, must be taken during clean-up operations. The contractor shall be responsible for conducting hazardous material testing and supplying LEAD with the results.

The finished floor will possess an even grade with the surround floor in compliance with UFC 3-320-06A.

All thru holes shall be repaired/restored to resemble the existing surfaces as much as possible.

Concrete Work: General Requirements for all Locations

Demolition shall be accomplished in accordance with all applicable Federal, state, and local laws and regulations.

Cutting of existing concrete shall be done in such a way that the final concrete will have cleaned and treated edges to enable good adhesion of new concrete.

The connection of unworked, existing concrete to new concrete shall utilize dowels. Dowel design and installation shall be in accordance with engineering drawings provided by the contractor and signed by LEAD’s Directorate of Public Works (DPW).

New concrete shall match the depth of existing concrete and have reinforcement. Concrete work shall be done in accordance with engineering drawings provided by the contractor and signed by LEAD’s Directorate of Public Works (DPW).

Concrete shall have a minimum compressive strength of 3,000 psi at 28 days or as specified on the design drawings provided by the contractor, contingent on DPW approval. Cylinder tests in accordance with ASTM specifications shall be used to verify concrete strength.

New concrete shall have Control Joints on a grid approximately 12’- 0” in both directions. Control joints shall be cleaned and filled with a butyl rubber sealant compound to prevent water and debris from filling the joint.

After placement of the concrete, concrete shall be finished, and curing/sealing compound (Krystal OTC 25 or DPW approved equal) shall be applied in accordance with the manufacturer’s specifications.

In summary, the contractor shall provide LEAD DPW with the following (at a minimum)…

 Concrete engineering drawings

 Concrete Mix Designs and Concrete Hardener

 Concrete Test Reports

 Concrete Reinforcement Layout and Materials

 Concrete work As Built Drawings (1 Hard Copy & 1 Electronic Copy)

ADMINISTRATIVE ITEMSApplicable Documents

OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA), 29 CFR 1910 and 29 CFR 1926. Copies may be obtained at http://www.osha.gov.

AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS (ACGIH) - Industrial Ventilation: A Manual of Recommended Practice for Design. Copies may be obtained at http://www.acgih.org.

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) – ASME B30.11 Monorails and Underhung Cranes, ASME B30.16 Overhead Hoist (Underhung), and ASME HST-5 Performance Standard for Air Chain Hoists. Copies may be obtained at www.asme.org.

AMERICAN SOCIETY OF SAFETY PROFESSIONALS (ASSP), ANSI/ASSP Z9.4 – Abrasive-Blasting Operations-Ventilation and Safe Practices for Fixed Location Enclosures. Copies may be obtained at https://www.asap.org/membership.

AMERICAN WELDING SOCIETY (AWS) - AWS D1.1/D1.1M Structural Welding Code and D14.1 Industrial and Mill Cranes and Other Material Handling Equipment.  Copies may be obtained at www.aws.org.

CRANE MANUFACTURERS ASSOCIATION OF AMERICA (CMAA) 74 Electric Overhead Traveling Cranes. Copies may be obtained at www.mhia.org.

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA), NEMA ICS 6 - Enclosures for Industrial Controls and Systems, NEMA 12.1 - American National Standard for Electric Meters Code for Electricity Metering. Copies may be obtained at http://www.nema.org.

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA), NFPA 51B - Standard for Fire Prevention During Welding, Cutting, and Other Hot Work, NFPA 68 – Standard on Explosion Protection by Deflagration Venting, NFPA 69 – Standard on Explosion Prevention Systems, NFPA 70 - National Electrical Code, NFPA 80 – Standard for Fire Doors and Other Opening Protectives, NFPA 91 - Exhaust Systems for Air Conveying of Vapors, Gas, Mists, and Particulate Solids NFPA 400 - Hazardous Materials Code. Copies may be obtained at http://www.nfpa.org.

SHEET METAL AND AIR CONDITIONING CONTRACTOR'S NATIONAL ASSOCIATION (SMACNA) - Industrial Duct Construction Standards. Copies may be obtained at http://www.smacna.org.

LETTERKENNY ARMY DEPOT (LEAD), LEAD reg. 385-1 - Safety and Occupational Health Program. Copies may be obtained from LEAD Directorate of Contracting

UNIFIED FACILITIES CRITERIA (UFC), UFC 4-211-02 – Industrial Ventilation. Copies may be obtained at https://wbdg.org/ffc/dod/unified-facilities-criteria-ufc

GOVERNMENT RESPONSIBILITIES

LEAD will provide a clean, dry area for storage of all equipment before, during, and after installation.

LEAD will prove electrical and compressed air connections to tie into within 25’ of the Blast Booths

LEAD will connect the booth grounding system into the building grounding system.