SUMMARY OF WORK_QLR ARSR HVAC Replacement.docx

QLR - ARSR HVAC Replacement Apr 2022

SUMMARY OF WORK

1.0 GENERAL SCOPE

The selected Contractor shall furnish all labor, product, equipment, materials, and supervision for the demolition and installation associated with the HVAC Replacement Project at the Mt. Santa Rosa (QLR) Long Range Radar (ARSR) site located near Yigo, GU. “Demolition” includes but is not limited to removing and disposing of the existing 4 split system condensing units, associated equipment, HVAC controls, and all associated components from the facility. “Installation” includes but is not limited to providing and installing 2 new 15–ton split system condensing units, 2 new 25-ton split system condensing units, with associated equipment, HVAC controls, and all associated components at the site. Prior to “installation,” all of the equipment and material shall be reviewed and accepted by an FAA representative.

The following items are a summary of the project and are provided solely for the purpose of describing the general nature of the work. The Contractor is responsible for accomplishing all items of work identified in the applicable drawings, specifications, and provisions of the contract:

A. General

1. QLR ARSR is an active operational facility that runs 24 hours a day, 7 days a week.

2. All work shall be coordinated with the FAA and be accomplished on a “Not to interfere with FAA operations” basis.

3. Construction material shall be stored only in FAA approved areas.

4. Construction staging shall be allowed only in the FAA approved areas.

5. The Contractor shall provide all temporary services required for construction.

6. The Contractor shall clean up and restore the site grounds to its original condition after the work has been performed.

B. Demolition

1. Remove and properly dispose of existing split system condensing units (4 units). Provide certificate of disposal for refrigerant.

2. Remove and properly dispose of the associated refrigerant piping, controls and other related components.

3. Relocate interferences for the new equipment as needed. All relocations must be done with prior approval from the COR.

4. Patch all wall openings left as a result of the demolition to match surrounding areas.

5. Due to the critical equipment inside this facility, reliable cooling is required throughout the project. Temporary HVAC units will be necessary. Prior to switching over to the new units, a 24-hour continuous run-in test is required.

C. Installation New Condensing Units

1. Provide and install 2 each new Trane Odyssey 15-Ton Split System Condensing Units, or FAA approved equal, and all associated components into the general locations shown on installation drawings M001(I) and M002(I). New condensing units must be compatible with existing air handling units, which will not be replaced during this project. Air handling units are Trane Odyssey model number TWE180E300AA. Existing condensing units are Trane Odyssey model number TTA18043DAB00AE05. Exact locations are to be field determined. The minimum characteristics of the new condensing units shall be as follows:

a. Commercial application

b. R-410a Refrigerant

c. 15 tons nominal Capacity

d. Dual compressors

e. Condenser Hail Guards

f. Hinged Access Doors

g. 208V / 60 hertz / 3 phase

h. Complete coat condenser coils

2. Provide and install 2 each new Carrier Gemini 25-Ton Split System Condensing Units, or FAA approved equal, and all associated components into the general locations shown on installation drawing M001(I). New condensing units must be compatible with existing air handling units, which will not be replaced during this project. Air handling units are Carrier model number 39LD21AA-BF-BFP139. Existing condensing units are Carrier Gemini model number 38APD02555A10020. Exact locations are to be field determined. The minimum characteristics of the new condensing units shall be as follows:

a. Commercial application

b. R-410a Refrigerant

c. 25 tons nominal Capacity

d. Dual compressors

e. Condenser Hail Guards

f. Hinged Access Doors

g. 208V / 60 hertz / 3 phase

h. E-coat micro channel condenser coils

3. Mount units to concrete using concrete anchor/studs. Secure new units per manufacturer’s instructions.

4. Replace all screws on new condensing units with stainless steel screws of similar size.

5. Install 2 each Government Furnished (GFE) OAS HVAC controllers. Approximate locations are shown on installation drawings M001(I) and M002(I); exact locations will be field determined. Contractor will be responsible for providing and installing ¾” conduit from the controller and properly sized thermostat wire to associated units, as required.

New Refrigerant Piping

1. Provide new refrigerant piping between each new condensing unit and its associated air handling unit with the following accessories per refrigerant circuit:

a. TXVs

b. Replaceable core filter drier

c. Sight glass with moisture indicator

d. Service valves

2. Pipe hangers and supports:

a. All piping must be supported, anchored, and guided in a manner such that expansion and contraction will take place in the direction desired and vibration/undue strain on equipment will be prevented.

b. Supports of flat surfaces must be unistrut P-2558 pipe strap bolted to P-1000 channel, or FAA approved equivalent.

c. Spacing between supports must not be more than 6 feet for tubing up to 1-1/2 inches in diameter and 10 feet for tubing 2 inches and larger. Minimum of one support is required at each change of direction.

3. Refrigerant piping must be fabricated from Type L, ACR quality hard drawn copper tubing and standard weight wrought copper fittings. Refrigerant piping having joints to be high temperature brazed must be blown out with dry nitrogen gas and a small amount of this gas must be allowed to flow during and after brazing. The gas must be allowed to flow until the temperature of the tubing is below the oxidation point. Extreme care must be exercised to prevent overheating and subsequent pitting, burning or annealing of the base pipe material. Any joints which show pitting, burning, or other evidence of overheating will be rejected by the Government and must be replaced by the Contractor.

Joints must be made with high strength, silver/copper brazing alloy. Brazing alloy must be composed of 15% silver/80% copper with a liquidus temperature of 1480°F and a tensile strength of 85,000 psi minimum. Brazing alloy must be J.W. Harris "Stay-Silv 15", or approved equal.

Where high brazing temperature is not acceptable such as at valves and other specialty fittings with non-removable parts and where approved by the R.E., join the piping utilizing silver-tin alloy solder with a liquidus temperature of no greater than 535°F to prevent damage to temperature sensitive parts. Tensile strength must be 15,000 psi minimum. Solder must be used only for piping operating at a temperature below 150°F and must not be used for any hot gas lines. Solder must be J.W. Harris “Stay-Brite 8”, or approved equal. Following soldering, clean all acid, flux, carbon or other contaminations from the pipe joint.

4. High Pressure Testing: After the installation of refrigerant piping fabricated and installed by the Contractor is complete, the entire refrigerant circuit must be tested by the Contractor in the Resident Engineer's presence to prove it is absolutely tight. All expansion and compressor valves must be open to pressure. The test pressure must be achieved using dry nitrogen to 300 psi and held for a period of 2 hours. If, during that time, the test pressure drops by more than 5 psi, the Contractor must visually test the entire system for leaks including the compressor, coils, refrigerant connections to the controls, valves, and piping joints using liquid soap application (or other product intended for visual leak identification) and visual inspection for bubbles created by leaks. If leaks are found, the test pressure must be relieved, the leak repaired, and the test repeated. To repair a leak, the joint must be taken apart, thoroughly cleaned and remade in the same manner as new work, with nitrogen flowing in the line whenever heat is applied.

5. Evacuation: After the refrigerant system has been high pressure leak tested and found to be tight, the test pressure must be relieved. Evacuation of the system must be performed during a period when the ambient air around all components is 60°F or above during at least some part of the evacuation period, unless otherwise approved by the R.E. Evacuation lines must be copper tubing or high vacuum rubber tubing. Service gauge hoses are not satisfactory. The entire system must be evacuated to 500 microns (= 0.02 inches) of mercury absolute. The system must be evacuated from both high and low sides together. An electronic instrument capable of reading down to 50 microns must be used to measure the vacuum. Under no circumstances will a dial type pressure gauge be acceptable for measuring the vacuum. When the desired vacuum has been obtained (500 microns of Hg. absolute), the pump must be shut off and the vacuum maintained for at least two hours.

During the two hour period monitor the vacuum pressure every 15 minutes. An initial rise in pressure during the first hour followed by a constant pressure reading not exceeding 1500 microns during the entire second hour is acceptable. Any rise in absolute pressure which continues at a constant rate during the second hour is probably an indication of a leak which must be located and repaired and the above specified high pressure leak testing procedure repeated.

If the absolute pressure is successfully maintained, the vacuum must then be broken with the proper refrigerant to atmospheric pressure or above and the system charged.

6. Charging: The refrigerant system must be charged with the specified refrigerant in the amount necessary in accordance with the condensing unit manufacturer's instructions. The amount of charge for each system must be determined by weight, recorded and included in the equipment start-up report.

7. Medium Pressure Leak Testing: After the system is high pressure leak tested, evacuated and charged as specified above, electronically test for leaks with the compressor(s) and blower(s) off using an electronic refrigerant leak detector. The refrigerant pressure will be at its saturation pressure depending upon the current ambient temperature. The Contractor must test the entire system for leaks including the compressor, evaporator and condenser coils, refrigerant connections to the controls, valves, and piping joints.

If the above test is successful, start the compressor(s) and blower(s) and repeat the above test on the entire high pressure side of the refrigeration system from the hot gas discharge side of the compressor to the inlet side of the expansion valve or capillary tube and all joints and components in between. The refrigerant pressure will be at its highest saturation or superheated pressure depending upon the current condensing temperature.

If leaks are found, the refrigerant must be removed and recovered. To repair a leak, the joint must be taken apart, thoroughly cleaned and remade in the same manner as new work, with nitrogen flowing in the line whenever heat is applied. Following repair, repeat the high pressure testing, evacuation, charging and medium pressure testing sequence specified above.

8. Exterior refrigerant line insulation shall be covered in a protective coating similar to VentureClad 1577CW, or FAA approved equal.

Electrical

0. All electrical work shall comply with the latest revision of FAA specification FAA-C-1217H, “Electrical Work, Interior”.

0. All equipment grounding shall comply with the latest revision of FAA standard FAA-STD-019F, “Lightning Protection, Grounding, Bonding and Shielding Requirements for Facilities”.

0. All bonds shall be exothermic welds or FAA approved pressure connections.

0. Contractor shall confirm breaker size prior to construction and replace if necessary per unit manufacturer’s specifications. Breakers may be oversized if the associated disconnect is properly fused for the serviced equipment.

0. Contractor to verify existing disconnects are acceptable for re-use. Disconnects must meet the manufacturer specifications for the associated equipment it is supporting. If new disconnects are required, Contractor shall provide and install properly sized Heavy Duty disconnects and connecting wires for each new condensing unit. Outdoor disconnects shall be NEMA 3R minimum rating and stainless steel. Each disconnect shall be fused to match manufacturer rating for supported equipment.

0. Provide updated printed Panel schedules to affected Panels.

0. Label each new/reused disconnect with Voltage, Phases, and Source Panel & Breaker info. Labels shall be plastic engraved nameplates with white letters and black background. Letter size must be 1/8" for controls, 3/16" for devices on control panel covers and 3/8" for safety switches, air conditioning equipment and other equipment devices. Nameplates must be secured to equipment, cabinets and to controls with adhesive backing.

0. Utilize Liquid-Tite type flexible conduit when flexible application is required. Flex conduit shall not exceed 6’ individual length.

0. EMT Conduit is only allowed on the interior of FAA facilities. All exterior conduits shall be PVC coated rigid steel with threaded connections.

0. Where EMT is used, only compression-type fittings are acceptable.

Testing and Balancing

1. Perform an operational check of all newly installed equipment.

1. Confirm the cooling capacity is 15-tons/25-tons for new condensing units.

1. Confirm compressor operation and staging (if applicable) for the controls and air conditioning units.

Maintenance Equipment:

1. Provide the following equipment to the FAA for continued maintenance of the new R-410a HVAC Equipment.

0. 1 Spare set of disconnect fuses of each size required Training:

1. Provide new equipment training to the facility personnel for all newly installed equipment. Training shall consist of at least 4 hours detailing the new units and individual components of the system including Lock Out Procedures and any special features of installed equipment.

0. APPLICABLE DOCUMENTS

0. Applicable Documents - All FAA, Military, Federal, and industrial codes or standards, specifications, and contract drawings referenced in this and the following divisions form a part of this specification and are applicable only to the extent they were used as a basis of this design. All references to codes, standards, specifications, and construction drawings refer to the latest editions (and any supplements) in effect on the date of the contract.

0. Applicable Publications - The publications listed below form a part of this specification to the extent referenced. The publications are referenced to in the text by basic designation only.

1. Code of Federal Regulations (CFR):

0. OSHA General Industry Safety and Health Standards (29 CFR 1910), OSHA Construction Industry Standards (29 CFR 1926). OSHA 2202 is a condensed version of 29 CFR 1926. Each is for sale by the Superintendent of Documents, U.S. Government Printing Office, Washington DC 20402.

0. National Emission Standards for Hazardous Air Pollutants (40 Cfr, Part 61).

1. SMACNA Handbooks: Sheet Metal and Air Conditioning Contractors’ National Association

1. Federal Standard (313A): Preparation and the Submission of Safety Data Sheets.

1. FAA Specification 1217H: Electrical Work, Interior.

1. FAA Standard 019f: Lightning and Surge Protection, Grounding, Bonding, and Shielding Requirements for Facilities and Electronic Equipment.

1. List of Drawings:

These listed drawings are for information only, expressing existing conditions and construction details. The contractor shall verify dimensions, locations, and sizes on the applicable drawings prior to installation.

Project Documentation:

Existing HVAC Related Documentation (For reference only):

0. DEFINITIONS

0. Federal Aviation Administration (FAA) - The terms "Federal Aviation Administration" (FAA) and "government" as used herein denotes the "owner".

0. Project Engineer (PE) - The term "Project Engineer (PE)” as used herein denotes the "Government’s representative".

0. Contracting Officer (CO) - The term "Contracting Officer" (CO) as used herein denotes the person designated to act for the Government in the performance of this contract.

0. Contracting Officers Representative (COR) - The term "COR” as used herein denotes the representative of the Contracting Officer at the job site. The term is synonymous with the FAA terms "Resident Engineer" (RE).

0. Contractor and Subcontractor - The term "Contractor" as used herein denotes the firm who will perform and complete the work required by the Contract. The term "subcontractor" as used herein denotes the person or firm retained by the Contractor to perform a particular unit of work required by the Contractor. Subcontractors shall be required to meet all specifications required of the Contractor.

0. CONSTRUCTION CONDITIONS

0. Pre-construction Conference The Contractor shall attend a pre-construction conference at the time and location specified by the RE. Requirements for material disposal, security and safety will be discussed. Use of facility restrooms, water, and power will also be discussed. Compliance with these procedures while on site is mandatory.

0. Submittals - Prior to submitting orders, the contractor shall submit specifications for each new component of the installation for approval. Examples of required submittals include the new HVAC units, disconnects, backdraft dampers, diffusers, placards, curbs or stands, duct insulation, etc. Contractor shall provide submittals for samples, certificates, reports, catalog cuts, letters, shop drawings, maintenance and operations manuals, etc. as required throughout the project. All documents shall be submitted to the COR.

0. Conflict Resolution - The Contractor shall meet standards, specifications, and drawings as specified herein. The specifications and drawings shall rule in all cases. Specifications shall govern over drawings. If any conflict should exist between site drawings (location-specific drawings) and standard drawings (drawings not referring to a particular location), the site drawings shall govern. In the event of dimensional discrepancies or omissions, the Contractor shall field verify and correct the information, and notify the RE. No work shall be done until agreement has been made with the RE

0. Inspection

3. Access for Inspection - The Contractor shall allow the RE complete access to all portions of the work. Portions of the work buried, enclosed, or disguised, shall be inspected by the RE before being obscured by the next operation of the Contractor. In all cases, the RE shall be informed accordingly and given access to the work. Work obscured before inspection and acceptance by the RE, may, at the option of the RE be opened for inspection at no additional cost to Government.

The RE will inspect all work in progress up to completion and final Contractor’s Acceptance Inspection (CAI) including all materials, tools, and equipment. Such inspection may extend to all or a part of the work for the preparation, fabrication or manufacture of the materials to be used. The RE will notify the Contractor of any non-compliance with the contract specifications and/or drawings, and may reject workmanship or materials accordingly.

3. Contractor's Acceptance Inspection (CAI) - After substantial completion of all the Contractor's work, a CAI will be conducted between the Contractor and Government. The RE will review the contract documents and verify that the Contractor has completed all required work. If work remains to be completed, an itemized list will be prepared, and the contractor at no additional cost to the Government shall complete the remaining tasks correctly. A Joint Acceptance Inspection (JAI) requires FAA personnel to be present. It may be held concurrently with the CAI.

0. Project Coordination - The Contractor shall be required to coordinate his/her construction activities with the FAA through the COR. All work which affects the facility shall be coordinated and approved by FAA personnel through the COR at least forty-eight (48) hours in advance of the scheduled work. Failure to notify and obtain the necessary approval may result in a rescheduling of the work. If weather conditions or aircraft operations preclude a scheduled shutdown of an existing FAA facility, the Contractor shall reschedule the work. The Contractor will be required to coordinate all power shutdowns of existing facilities with the FAA, through the COR, seventy-two (72) hours in advance. Each shutdown shall be limited and off-peak hours shall be required for testing or power shutdowns, with the facility placed back in service at the end of the workday, or as stipulated by the FAA.

0. Layout of Work - The Contractor shall field verify measurements and work from the established base lines and bench marks indicated on the drawings and shall be responsible for all measurements in connection therewith. The Contractor shall furnish, at his/her own expense, all stakes, templates, platforms, equipment, tools, materials, and labor as may be required in laying out any part of the work from the base lines and bench marks previously established. The Contractor will be held responsible for the execution of the work as detailed in the plans and specifications. It shall be the responsibility of the Contractor to maintain and preserve all stakes and other marks previously established until authorized to remove them.

0. Permits, Inspection, Licenses, Certificates - The Contractor shall obtain and pay fees for permits, inspections, licenses, or certificates required by Federal, State and City/Town officials as necessary to perform the work, prior to starting construction, and in a timely manner to avoid delays in starting the job. The Contractor shall submit evidence that they have obtained all required permits, inspections, licenses, and/or certificates.

0. Compliance with Local and Other Codes - The Contractor shall comply with local and other codes and standards. Where the requirements of the specifications and drawings exceed those of the local or other codes, the Contractor shall comply with the requirements of the specifications and drawings.

0. Stop Work Orders – The COR may issue a “stop work order” if any part of the work being performed by Contactor or subcontractor fails to comply with the contract. The Contractor shall not be allowed any extension of time or compensation for damages by reason of, or in connection with, such work stoppage. Serious violations shall be corrected immediately upon notice. Non-serious violations shall be corrected within 24-hours of the non-compliance notice. The Contractor may resume work, at the COR’s discretion, once satisfactory corrective action has been taken to correct the unsafe and unhealthy condition.

0. Protection of Existing Vegetation, Improvements and Structures - The Contractor shall take all precautions necessary to protect the existing facilities, equipment, buildings, foundations, vegetation, etc., during construction. Any areas damaged by the Contractor or any subcontractors, shall be repaired or replaced to their original conditions by the Contractor at no additional cost to the government. Repairs shall be approved by the COR and shall match to original finish. The Contractor shall provide all temporary covers, enclosures, barricades, etc., required to protect the existing facilities.

0. Schedules

10. Schedule The Contractor shall, within ten (10) calendar days from date of award of contract, submit to the CO for approval a practical project schedule. The schedule shall show the order in which the Contractor proposes to carry out the work, the date on which he/she will start the several salient features (including procurement of materials, plant and equipment) and the contemplated dates for completing the work. The schedule shall be in the form of a progress chart of suitable scale to indicate the approximate percentage of work scheduled for completion at any time. The Contractor shall enter on the chart the actual progress at such intervals as directed by the CO. The project schedule shall include a milestone schedule for payments. The milestones should be stated with requested reimbursement for each milestone (based upon actual costs, overhead and profit).

10. Progress Schedule - The Contractor, if requested by the CO, shall submit a progress schedule at such intervals as directed by the CO. If the Contractor fails to submit a progress schedule within three (3) business days, the CO may withhold approval of progress payment estimates until the Contractor submits the required progress schedule.

10. Hours of Work – Shall be approved by the COR. Most of the work is expected to be performed during normal working hours; however, some work may be required afterhours. Work on weekends and Federal holidays shall be approved in advance by the COR in writing.

0. Site Access - Access to the site will be via a pre-determined route identified and agreed upon at the pre-construction conference.

0. Special Permits - The Contractor shall obtain and submit evidence of all necessary permits for the work. The Contractor shall abide by all requirements dictated by the city, state, federal, airport authority or municipality for such permits without any additional cost to the government.

0. Waste Disposal - The Contractor shall provide on-site containers for the collection of construction waste materials, debris and rubbish and their daily removal from the site. Any spillage on access and haul routes shall be cleaned up immediately. All spoil, waste and debris removed from the work site and not specified for reuse or identified as salvageable items, or identified as contaminated contents shall be disposed of offsite in areas authorized by the applicable County, State and/or Local agencies and in accordance with current rules and regulations governing the disposal of such waste. The Contractor, at no additional cost to the government, shall pay disposal fees and miscellaneous charges. Copies of all documentation of the disposal of any fuel or hazardous wastes will be submitted to the COR.

0. Cleanup - The work site shall be kept clean and orderly during the progress of work. After final inspection, but before final acceptance of the work, all exterior surfaces of the equipment shall be cleaned of dirt, mud, or oil accumulations. All debris shall be removed from the general site area.

0. O & M - Upon completion of the facility modifications, the Contractor shall provide operation and maintenance instructions for all new equipment. This information will then be retained by the COR (and the FAA) and used to reflect the as-constructed conditions.

0. Warranties - Documentation for the warranties shall be provided to the government upon completion of the project.

1.5 SAFETY

OSHA and FAA safety standards will be enforced. In keeping with such standards, the Contractor shall, at a minimum, provide:

0. Safety Plan - The Contractor shall have and submit a Safety Plan with the purpose of maintaining a safe working environment for construction workers employed on site. The safety plan shall require a statement that the current Occupation Safety and Health Act (OSHA) regulations on safety in the construction industry, OSHA Title 29, Part 1910 and Part 1926, as well as FAA safety regulations are followed. The plan will be used by the COR to insure that the work is accomplished in accordance with accepted safety practices.

0. Trained Personnel - Personnel shall be properly trained in the usage of all equipment for which they will be required to use during the Contract. The COR may request documentation or other evidence of training at any time. Personnel without adequate training will be prohibited from using such equipment.

0. Lock Out / Tag Out – The Contractor shall employ and detail lock-out / tag-out procedures to employees working with and around electrical systems. When accessing an electrical panel, a FAA technician must be present prior to interrupting and energizing the breakers.

0. Safety Data Sheets - The Contractor shall have Safety Data Sheets (SDS) conforming to Federal Standard 313A, written by the manufacturer, for all materials containing chemicals or other substances which may pose a hazard. One (1) copy of each SDS shall be submitted to the COR and one (1) copy of each SDS shall be kept on file at the job site at all times. The Contractor and subcontractors will be prohibited from handling any material which does not have an applicable SDS on file at the site until such SDS arrives on site.

0. Safety Equipment - The Contractor shall provide safety equipment including, but not limited to, a Red Cross approved First-Aid kit and the appropriate number of annually inspected, charged fire extinguishers with the proper NFPA rating.

0. HAZCOM Program - The Contractor shall have a hazard communications (HAZCOM) program. The Contractor and each subcontractor shall submit a copy of their HAZCOM program as well as a copy of their current OSHA 200 form, if requested.

0. Work Practices - Although OSHA regulations and the Contractor's Safety Plan will usually apply, the COR may consider certain work practices to be unsafe in accordance with Public Law 91-596, Part 5a and 5b. The COR may stop any operation which is in violation of the OSHA standards or fails to comply with the safety plan or other safe work practices.

0. Designated Foreman - When any construction activity is conducted at the site, the presence of a designated, competent contractor’s foreman is required at the job site. The foreman must be qualified and capable of organizing and coordinating all activities of the Contractor and his subcontractors, and keeping a safe job site.

0. Work Force - The Contractor shall at all times, when construction activities are conducted, have a substantial number of workers for each task to proceed expeditiously and without generating delay, for lack of man-power.

2.0 CONTRACTOR-FURNISHED MATERIAL AND EQUIPMENT

2.1 MATERIAL DELIVERIES

All material deliveries made under this contract shall be arranged for delivery to the Contractor's material staging area. This area shall be located as determined at the pre-construction conference.

0. STORAGE AND PROTECTION

The Contractor, through the COR, shall secure from FAA all necessary clearances for storage areas on site, including any time limitations upon the use of such areas. The storage and protection of Contractor material shall be the sole responsibility of the Contractor. The Contractor shall provide at his/her own expense all fencing, shelters and security personnel as may be necessary for the protection of the material and equipment.

2.3 PERTINENT INFORMATION

Any pertinent information listed about the contractor-furnished material and equipment shall be submitted to the COR.

3.0 EXECUTION

3.1 WORK SEQUENCE

The QLR ARSR is an active operational facility, which runs 24 hours a day, 7 days a week; therefore, all work shall be coordinated and accomplished on a “not to interfere with FAA operations” basis. Some of the work performed may have to be accomplished after hours to accommodate Air Traffic Operations. Many of the steps of this project can be done simultaneously or in a different order.

3.2 CONTRACTOR USE OF PREMISES

0. Use of the Site - Do not disturb portions of the site beyond the areas in which work is required.

0. Driveways and Entrances: Keep driveways and entrances serving the premises clear and available to the Government, the Government’s employees, and emergency vehicles at all time. Do not use these areas for parking or storage of materials. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

0. Use of the Existing Building - Maintain the existing building in a watertight condition throughout the construction period. Repair damage caused by construction operations. Take all precautions necessary to protect the building during the construction period.

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