24-1012 Statement of Work English_SC.pdf

PREPARED FOR

DEPARTMENT OF THE AIR FORCE

BY

KBR SERVICES LLC SUCURSAL EN ESPAÑA

496TH AIR BASE SQUADRON

ENGINEERING DESIGN SECTION

MORÓN AIR BASE, SPAIN

DESIGN-BUILD STATEMENT OF WORK (SOW) FOR:

PROJECT QUUG 24-1012, RPR MFH PLUMBING & HVAC System, MULTI.

Prepared by: _________________________________________________________________

Reviewed by: _________________________________________________________________

Approved by: _________________________________________________________________

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INDEX

PART 1 - GENERAL PROJECT DESCRIPTION

PART 2 - PROJECT OBJECTIVES

PART 3 - SCOPE

PART 4 - DESIGN REQUIREMENTS

PART 5 - PERFORMANCE TECHNICAL SPECIFICATIONS

PART 6 - CONCEPT AND RECORD DRAWINGS

PART 7 - PHOTOS

PART 8 - SCHEDULE OF MATERIAL SUBMITTALS

PART 9 - LIST OF SPECIFIC DESIGN CRITERIA

PART 10 - SPECIAL CONDITIONS

PART 11 - GENERAL CONDITIONS

PART 12 - SMALL PROJECT DESIGN-BUILD PROGRESS SCHEDULES

ATTACHMENT A - INTEGRATED NATURAL RESOURCES MANAGEMENT PLAN

FOR MORÓN AIR BASE.

ATTACHMENT B – ENVIROMENTALS FINAL GOVERNING STANDARDS FOR

SPAIN, MAY 2014.

ATTACHMENT C – ARCHITECTURAL COMPATIBILITY PLAN.

ATTACHMENT D – INDEPENDENT GOVERNMENT ESTIMATE BLANK.

ATTACHMENT E – RECORD DRAWINGS.

ATTACHMENT F – CONCEPT DRAWINGS.

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PART 1 - GENERAL PROJECT DESCRIPTION

1. This project is intended to provide new HVAC and plumbing systems for the following military family housing units on Base: 643, 645, 647, 649, 664, 668, 696, 698, 688 and

690. MFH units, currently there are three types of housing over 200 square meters. Type D2 are Bldg.

696 and 698, Type D4 are Bldg. 688 and Bldg. 690 and Type A3 are Bldgs. 643, 645, 647, 649, 664 and 668.

2. The scope for the plumbing system basically consists on the repair by replacement of all the interior waterlines. Additionally, new solar panels will be installed for units 696 and 698 and connected to its respective existing electric water heaters. This includes all underground polyethylene water distribution lines and interior PPR plumbing lines and accessories to supply the existing fixtures and conveying water in the residence from the exterior water meter point of connection to the installation’s water distribution system to each air-gap/valve. Water quality issues were identified at the housing units and tests done by Bioenvironmental Engineering (BE) showed small amounts of regulated metals present in the water supply. This project is intended to mitigate the water quality issues by replacing the entire plumbing system of each unit housing unit.

3. HVAC Systems are to be replaced due to their obsolescence and noisy operation. The return air from the HVAC unit is also to be redirected.

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PART 2 - PROJECT OBJECTIVES

1. Provide a complete and fully operational facility/ies for the base needs in compliance with all applicable US, Spanish and NATO codes.

2. Provide an installation that incorporate maintainability and sustainable design principles.

3. Energy efficiency shall be incorporated into the design principles.

4. Provide a completed project with coordinated systems (structural, mechanical, civil and other applicable disciplines, if required).

5. Provide a complete project considering the ecological, physical and visual features of the site.

6. Project shall incorporate all necessary safety precautions in accordance with applicable safety standards.

7. Include proper training of Government personnel in the Operation and Maintenance (O&M) of new equipment installed and provide fully developed O&M packages.

8. Low maintenance and non-use of hazardous substances are of primary importance.

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PART 3 - SCOPE

1. GENERAL: The work covered by this Statement of Work (SOW) consists in the design and build of the project, performing all necessary travels and furnishing all professional services, facilities, labor, equipment, materials, plants, transportation, specifications, detailed drawings and cost estimates that enable the Contractor to construct a complete and usable facility under a firm fixed price contract. The Contractor shall investigate site conditions, perform topographic surveys (geographic information system) at each facility and utilize manufacturer’s standard installation plans, specifications and drawings to the maximum extent feasible in developing the final design documentation necessary for obtaining Government approval. Any design change suggested by the Contractor to the SOW requires the approval of the Contracting Officer before its acceptance is given. The Contractor shall be responsible for the temporary markings, signs, markers and lights at the area affected by the construction and, if required, shall provide the flagmen, escorts and foreign object debris controllers during the work hours.

2. WORK DESCRIPTION: The construction works consist of, but are not limited to, the items indicated below, including the testing to be performed by independent laboratories for quality control. All items do not limit or reduce the Contractor’s responsibility to design and build all works as required by the project in order to provide a complete, operational and low-maintenance facility.

2.1. BASIC PACKAGE: The project consists in the design and construction works to install new Heating, Ventilation and Air Conditioning (HVAC) systems and the entire plumbing systems for the buildings listed in PART 1, and the following works:

2.1.1. Architectural Works:

2.1.1.1. Provide acoustical insulation to the interior HVAC mechanical room and provide acoustical door with no grilles mounted on it.

2.1.1.2. Patch and restore repaired areas to include gypsum drop ceilings, gypsum false beams, wall tiles, wall cement, walkways, garden soil, etc...so that they are restored into original condition.

2.1.1.3. Install new false beams as required to cover potential exposed piping.

2.1.1.4. Install new false beams/plenums as required to provide ducted air return to the interior HVAC units.

2.1.1.5. Patch, prime and paint the rooms/enclosures where the interior and exterior HVAC units are located and any other affected areas, as applicable.

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2.1.1.6. As required for the proper execution of this project to achieve a reliable and usable facility.

2.1.2. Mechanical Works (plumbing):

2.1.2.1. Demolition: The Contractor shall perform selective demolition to remove all underground, embedded and exposed pipes, including valves and connections to the maximum extent possible. Existing pipes embedded in the walls that cannot be easily removed shall be sealed, covered, and abandoned in place.

2.1.2.2. Plumbing System:

2.1.2.2.1. The Contractor shall run new potable and future non-potable underground cold-water supply lines using High Density Polyethylene piping from the point of connection at the water meter to the housing unit.

2.1.2.2.2. The Contractor shall run new domestic cold and hot-water supply lines, using PPR piping, to supply all the existing fixtures at bathrooms, laundry and kitchens. To include the flexible pipes and shutoff valves from the wall to every plumbing fixture/appliance for both, cold and hot water.

2.1.2.2.3. The Contractor shall utilize attic space above the gypsum drop ceilings and beams to the maximum extent possible and embed in walls to run water lines for each existing plumbing fixture. There shall be no exposed pipes, except in the electric water heater rooms and laundry rooms. Take into consideration that the current space above the gypsum drop ceiling is mainly utilized by the HVAC ductwork and further investigation shall be required from the Contractor to define the final piping route.

2.1.2.2.4. Provide insulation to all pipes.

2.1.2.2.5. Provide hatches on the gypsum drop ceiling as required in order to access every shutoff valve for future maintenance.

2.1.2.2.6. Furnish and install exterior hose bibbs and Hose Connection Vacuum Breakers.

2.1.2.3. Testing:

2.1.2.3.1. Perform lead content in the water testing prior and after project completion. A minimum of 2 tests per house before and 2 test per house after project execution shall be performed.

2.1.2.3.2. Perform pressure tightness testing and pipe disinfection.

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2.1.2.4. Solar Water Heater

2.1.2.4.1. Provide new thermosiphon solar water heaters for units 696 and 698. Supply the solar heaters with cold water and feed the electric water heaters with the hot water produced by the new solar heater, so that both are installed in series.

2.1.2.4.2. Provide new thermostatic mixing valves at the Domestic Hot Water supply line from the electric water heater for each of the ten (10) housing units.

2.1.2.4.3. Perform functional test.

2.1.3. Mechanical Works (HVAC):

2.1.3.1. Remove existing HVAC units, refrigerant, refrigerant piping and accessories, metallic bedplate, controls and associated electrical system, supply-return-outside air ductwork inside the mechanical room, drainage and any other element required to be demolished as part of the design.

2.1.3.2. Replace the 60 B.T.U. air-to-air ducted split heat pump units of the ten houses, model Carrier JT4BE-060K / B6BMM060K-L and required accessories.

2.1.3.3. Supply ductwork is to remain, but to be cleaned and disinfected by a certified company. Provide new opposed blades regulation dampers to properly balance the air flow withing the different areas and prevent noisy operation. Replace current supply registers in bad condition and those not having regulation damper on it.

2.1.3.4. Provide ducted air return for each room, since the current air distribution configuration is preventing the air supplied to be effectively returned to the HVAC unit and facilitates the interior unit noise transmission to the occupied spaces. Pay special attention to prevent undesirable noise transmission between the different spaces, especially from the HVAC mechanical room. Avoid the return of air though grille mounted doors.

2.1.3.5. Clean and re-use the existing drain located in the HVAC mechanical room. If not possible, provide a new one. Exterior unit shall drain into a new dry well.

2.1.4. Electrical Works:

2.1.4.1. Demolish existing electrical installation which feeds HVAC equipment .

2.1.4.2. Install all conduits and electrical lines necessary for the proper operation of the new equipment.

2.1.4.3. Perform all necessary connections.

2.1.4.4. Commissioning and final testing on all new equipment.

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2.1.5. Miscellaneous.

2.1.6. Testing, balancing and Commissioning.

2.1.7. Delivery of As-built drawings.

2.1.8. Delivery of Spatial Data.

2.2. OPTION #1: in case of finding damaged piping, plumbing fixtures or Domestic Hot Water production systems, they shall be replaced as needed. Also, in case additional unforeseen architectural works are required, they shall be performed as needed. In order to account for this potential fact, this optional item computation has been considered in the project to include the following specific items:

2.2.1. Piping:

2.2.1.1. Underground polyethylene pipe DN50: account for 10 meters.

2.2.1.2. Insulated PP-R pipe DN32: account for 30 meters.

2.2.2. Plumbing fixtures replacement (including sewer/water connections and architectural work):

2.2.2.1. WC bowl with low tank and sewer connection to the floor: account for 3 units.

2.2.2.2. Lavatory and sewer connection to the wall/floor: account for 3 units.

2.2.2.2.1. Single faucet mixer for lavatory: account for 6 units

2.2.2.3. Two-Compartment kitchen sink and sewer connection to the wall: account for 3 units.

2.2.2.3.1. Single faucet mixer for kitchen sink: account for 6 units.

2.2.2.4. Bathtub and sewer connection to the floor: account for 3 units.

2.2.2.4.1. Single faucet mixer and shower head for bathtub: account for 6 units.

2.2.2.5. Shower stall and sewer connection to the floor: account for 3 units.

2.2.2.5.1. Single faucet mixer and flexible shower head for shower stall: account for 6 units.

2.2.2.6. Sink and sewer connection to the wall: account for 3 units.

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2.2.2.6.1. Single faucet mixer for sink: account for 6 units.

2.2.2.7. Hose bibb with Hose Connection Vacuum Breaker: account for 6 units.

2.2.3. Domestic Water Heating:

2.2.3.1. Electric water heater, valves and accessories: account for 6 units.

2.2.4. Unforeseen architectural works:

2.2.4.1. Gypsum false ceiling/beam (painted): account for 100 m².

2.2.4.2. Wall tile replacement: account for 100 m².

3. SITE AVAILABILITY:

3.1. The MFH units are normally occupied. The Contractor shall coordinate with the Project Inspector for proper coordination with the Users/Occupants to evacuate the house during the performance of work as needed. The work shall be performed in phases so that only one unit is available at a time. No work shall be allowed to commence in a new phase until the works of the previous phase have been completed. In case no house is available in a certain period, the Contractor may request additional time at no cost for the Government.

3.2. The Contractor shall coordinate with the Contracting Officer or authorized representative for site visits with a minimum of ten (10) working days in advance. The attendance to the site visit prior to the design phase commencement is mandatory.

4. PROJECT PHASING: The Contractor shall plan and execute all works in strict adherence to phase completion requirements provided by the Government below. The two general phases of the project shall be the Design Phase and the Construction Phase. A unique contract award (CA) for both the design and for the construction phases will be issued. The design and construction phases below can be balanced, i.e.: if the Contractor completes the design faster, the remaining time can be used for construction; on the contrary, if the Contractor design is delayed, the construction period shall be shortened accordingly, so the overall project performance period shall be maintained at no extra cost to the Government in case that the Contractor needs to increase resources to accomplish the overall contract. The construction phase shall consider the phasing plan required to perform works with minimum interferences to Base operations and security, including a Construction Phasing Plan, if needed. The estimated project phases (not to exceed days) will be as follows (see next page):

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Milestones Periods Contract Award (CA).

Kick-off meeting Any time within NTP+25 calendar days.

35% Design Review Submittal Preparation NTP + 30 calendar days.

35% Design Review and Approval NTP + 60 calendar days.

65-95% Design Review Submittal Preparation NTP + 100 calendar days.

65%-95 Design Review and Approval NTP + 135 calendar days.

100% Design Review Submittal Preparation NTP + 150 calendar days.

100% Design Review and Approval NTP + 180 calendar days.

Construction Completion Date NTP + 400 calendar days.

4.1 The total performance period for this project is 400 calendar days, including the design, the preconstruction, construction and finish activities and average inclement weather days.

The start of construction can be requested by the contractor before the design phase is completed. In this case, the Contractor should request an updated AF103 from the Contracting Officer when preparing to mobilize for construction, the updated AF103 can be requested before design has been finalized and construction shall not start until receiving the AF103 from Contracting Officer.

5. The Government design review continues through the 100% design to provide direction, as pertaining, to the quality and content of the documents.

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PART 4 - DESIGN REQUIREMENTS

1. PROJECT DESIGN:

1.1. The project design shall be performed by a certified A-E firm hired for this project by the Contractor, regularly engaged in projects of similar size and type, whose design meets Spanish, US and NATO regulations. The A-E shall provide a comprehensive description of the project to be designed under this contract. The description of the project shall be prepared in sufficient detail to clearly describe all functional requirements and minimize design changes. During the progress of the work, the A-E may expect minor changes in criteria within the general scope of the project and shall make necessary adjustments accordingly. The 35% design submission is intended to clarify and establish specific requirements of project.

1.2. The project submitted by the A-E Firm shall represent the best engineering solution possible providing a complete and usable installation. All work must be in accordance with current criteria, guides and specifications established by the Spanish, US and NATO regulations.

2. ENVIRONMENTAL CRITERIA: The Integrated Natural Resources Management Plan for Morón Air Base and the Final Governing Standards (FGS) for Spain shall be followed to assure final design meets all environmental requirements.

3. SERVICES. The services to be performed and project documents to be provided to the Government shall include the following:

1. Design analysis.

2. Technical specifications.

3. Drawings.

4. Cost estimates.

5. Design conferences, site inspections and investigations (to include minutes of all meetings).

4. KICK-OFF MEETING: Before beginning the design and within 25 days of contract award, the Contractor shall review current criteria, guides and specifications, make a thorough study of conditions at the site and the requirements of the project. A kick-off meeting shall be held by the Contractor with the members of the Base and Government representatives to clarify the functional requirements to be met and the scope of the work. Any conflict shall be brought to the attention of the Contracting Officer. The expected outcomes of this meeting are:

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1. Integrate the Contractor and all Base and Government representatives into the project team.

2. Achieve consensus from the project team on any issues and concerns with the Contractor's technical proposal and the User's functional requirements.

Confirm the design is within the project budget.

3. Establish and explain policies and procedures for completion of a successful project.

4. Establish clear lines of communication and points of contact for Government and Contractor team members.

5. Establish project design schedule, design submittal packaging, and preliminary construction schedule including the main activities related to the construction of this project foreseen at this stage.

6. Discuss design milestones and events.

7. Establish clear expectations and schedules for facility turnover, providing asset management records, O & M submittals, and training of Government maintenance personnel.

8. Establish procedure for design packages reviews, Contractor's resolution to comments, and Government's role in review of packages.

5. DELIVERABLES: The submission requirements at the different design review milestones shall be as indicated below.

5.1. First Submittal: This submission to the Contracting Officer or authorized representative shall be at approximately the 35 percent stage of completion (see requirements in table below). The Contracting Office or its authorized representative shall furnish the A-E with the comments and corrections from the 35% review package to be incorporated in the subsequent submission.

5.2. Second Submittal: This submission to the Contracting Officer or authorized representative shall be a combination of the typical 65-95 percent stage. Therefore, this submission (65-95 percent) shall be essentially complete from A-E viewpoint and shall include information in sufficient detail of all phases of the work to provide a complete technical submittal. The intent of this submission is to prevent premature time-consuming reviews of incomplete drawings and specifications. All submittal data, including plans and specifications, shall be date stamped with the date of submittal. An incomplete submittal shall not be accepted. Engineering calculations shall be legible, neatly arranged, bound and indexed. The A-E's name and the project title shall be shown, as well as Contractor’s name. Design data shall be clearly stated, and where unconventional design

SOW 16 of 112 methods or formulas are employed, reference sources shall be cited. Specifications for this submission (95%) shall be complete, with all elements thoroughly checked and coordinated with the drawings and with sufficient detailed information to permit accurate construction of the project. The second submission shall incorporate all comments of the previous submission. Particular emphasis shall be placed on coordination of the different disciplines where parts of the design are subcontracted. The Contracting Office or its authorized representative shall furnish the A-E with the comments and corrections to be included in the final submission following the review of the third submittal.

5.3. Final Submittal Project Design. The final submission (100%) shall incorporate the corrections and clarifications noted on the third submission or an explanation provided for not doing so.

5.4. Table of Deliverables:

Document Description Number Required

35% Design Submission Basis of Design/Design Analysis

Description of design criteria, principles and codes applied and results of calculations, tests and other information pertinent to the design of the project organized and detailed sufficiently to permit easy selection of the appropriate guide specifications.

1 bound copy and 1 electronic copy

Outline Specifications Draft specifications at this level. The outline specifications shall list all basic construction items and specific types of materials. The outline specification shall describe any special conditions of service and site conditions inherent in the project.

1 electronic copy

Drawings Sketches/plans including site plan, perspective, floor plans, and elevations required for the project.

1 set (A3 size), 1 set (full size) and 1 electronic copy

Preliminary cost estimate (rough order of magnitude)

A cost analysis of various structural, mechanical and electrical systems shall be included.

1 electronic copy

Design review meeting minutes

Minutes of the design review meeting shall be distributed within 5 workdays after each meeting.

1 electronic copy

65-95% Design Submission Basis of Design/Design Analysis

Further development of previous up to this stage of design, including all civil, structural, mechanical and electrical calculations, including short circuit calculation, load calculations, and lighting calculations if needed, hydraulic, among others. Engineering

1 bound copy and 1 electronic copy

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Specifications Full specifications including Spanish translations. The content of each translated page shall be the same as each page of the English version of the specification.

Separate volumes by language.

1 bound copy and 1 electronic copy

Drawings Drawings, at this stage, shall include Spanish translations.

1 set (A3), 1 set (full size) and 1 electronic copy

Cost estimate Itemized cost estimate shall be provided summarized in the form named Construction Cost Estimate Breakdown

1 electronic copy

Comments on 35% submission

Annotated prints and comments on the 35% submission shall be returned with this submission. This can be included in the basis of design/design analysis as an attachment.

1 electronic copy

Design review meeting minutes

Minutes of the design review meeting shall be distributed within 5 workdays of each meeting.

1 electronic copy

Catalog Cuts Catalog information, installation instructions, manufacturer recommendations of every material listed in the Schedule of Material Submittals for easy reference of materials selected and market research performed shall be included in an annex to the Basis of Design/Design Analysis.

1 electronic copy

100% Design Submission Basis of Design/Design Analysis

Further development of previous up to this stage of design, including all civil, structural, mechanical and electrical calculations, including short circuit calculation, load calculations, and lighting calculations if needed, hydraulic, among others. Engineering calculations shall be legible, neatly arranged and indexed.

1 bound copy

Specifications Final specifications including Spanish translations. The content of each translated page shall be the same as each page of the English version of the specification

1 bound copy

Drawings Drawings shall include proper signatures. 2 sets (full size), 2 sets (A3 size), 1 set (full size in mylar for as-built)

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Cost estimate Signed original of final cost estimate (Construction Cost Estimate Breakdown)

Signed original

Comments on 95% submission

Annotated prints and comments on the 35%, 65% and 95% submissions shall be returned with this submission. This can be included in the basis of design/design analysis as an attachment.

1 bound copy

Catalog Cuts Catalog information, installation instructions, manufacturer recommendations of every material listed in the Schedule of Material Submittals for easy reference of materials selected and market research performed shall be included in an annex to the Basis of Design/Design Analysis.

1 bound copy

Electronic copies All drawings, specifications and other project documents shall additionally be on a CD-ROM or DVD-ROM utilizing Adobe PDF, MS WORD 2016 and AUTOCAD 2023 or higher. Drawings shall be on a separate CD-ROM or DVD-ROM than the rest of the documents and in both AUTOCAD and Adobe PDF formats. All other documents shall be provided in both the original format and in Adobe PDF. Final CD-ROM or DVD-ROM for drawings and specifications must be labeled as follows:

Project name and location Date Project Number A-E Firm Contractor's Name Drawing numbers Virus scanner person’s name

1 copy

Other All computations, studies and other significant material shall be bound in book form for the final submittal.

The annotated prints and comments on pre-final submission.

1 bound copy and 1 electronic copy

5.5. Appropriate Signatures. Each final drawing shall be signed by the Designer of Record (DOR). The project shall be validated by the organizations of Morón Air Base involved on the project with a signature on the cover sheet. To expedite this process the A-E shall send the original drawing of the cover sheet on polyester with the third submission and it shall be returned to the A-E prior to the final submission with the required signatures.

5.6. Project Drawings Final Submission. Project drawings shall be final and complete with all elements thoroughly checked and coordinated. All elements of the work shall be properly coordinated to ensure that there are no conflicts between all portions of the work. Particular emphasis

SOW 19 of 112 shall be placed on this coordination when certain elements of the design are performed under sub-contract to the A-E contract. Drawings shall be prepared in order to avoid errors, omissions, inadequacies or conflicts with the specifications. Applicable parts of the following design data shall be shown on the drawings.

5.7. Format for Drawings:

5.7.1. AUTOCAD Requirements: All designs shall be accomplished in AUTOCAD 2023 or higher and shall be submitted on CD ROM and in one set of Mylar reproducible.

5.7.2. Size of Drawings: The A-E shall use drawing size DIN A-1 841 mm x 594 mm in all cases unless specifically directed to use another size.

5.7.3. Lettering and Shading: The minimum size lettering on all project drawings shall be

2.5 mm high. Make minimum gap between lines equal to one-half the letter height. Shading is not acceptable.

5.7.4. Scales: Locate it directly under the title of each plan, elevation, section and detail and shall be an indication of the scale of the object drawn (example: SCALE 1:100) on the metric system unless otherwise approved. In addition to the conventional scales, and directly to the left of the title block, shall be a series of graphic scales, which shall include every scale used on the sheet. Scales shall be placed in sequence according to size with the smallest uppermost. If it is not sufficient to place all scales on one sheet, each sheet must be treated independently, as the drawings used usually are reduced in size and not always at scaled. For these reasons, it is imperative that graphic scales be shown.

5.7.5. Title Blocks: Sample of title block is available at Morón Air Base, Bldg. 202, Design Section.

5.7.6. Arrangement of Drawings: Drawings shall be arranged and comply with the A/E/C CAD Standard – Release 5.0, prepared by the CAD/BIN Technology Center.

5.7.7. Register number: All drawing sheet shall be incorporated in its title box the register number record provided by Morón Air Base Civil Engineering specific for each project.

5.7.8. Drawing Orientation: The orientation of drawings shall be arranged with North toward the top (or left edge, if better suited) of the plotted sheet and perpendicular to the sheet borderline. On individual sheets, if the shape of the area dictates, the North symbol can be oriented between these directions to accommodate the site. For example, on drawings having excessive longitudinal but limited lateral dimensions, such as those for roads and railroads, the North symbol can be oriented obliquely to make the best use of available space. All drawings of the same discipline shall be consistent in orientation in so far as practicable.

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5.7.9. GIS Master Plan: Coordinate with Geobase office for requirements on GIS drawings and obtaining initial site plans for GIS survey.

5.8. Requirements for Project Specifications:

5.8.1. Project Specifications Preparation. The project specifications form a part of the contract documents. Project specifications shall be as brief as possible, definite, and free of ambiguities and omissions, which might result in controversies and subcontractors' claims for additional compensation. For construction projects, which involve interruptions of existing facilities operations or major utility usage, it is the Contractor's responsibility to discuss the required outages and interruptions with the Contracting Officer or authorized representative and operations personnel to establish a construction schedule for these interruptions in the contract specifications. In order to provide conformity in reproduction of specifications, it is requested that all sketches, which are to be bound as a page in the specifications, be drawn on a sheet of A4 page size with 1.25 mm margin on all sides.

5.8.2. Standard Specifications. The guideline for the specifications shall the Unified Facilities Guide Specifications (UFGS). Maximum use shall be made of standard specifications, materials and methods of construction available in Spain (for example, UNE, CÓDIGO TÉCNICO DE LA EDIFICACIÓN, PLIEGOS DE CONDICIONES DEL MOPU, among others). Federal and Military Specifications and other standards such as ASTM, ASME, AASHO shall not be used if the products or the methods described are not available in Spain or are not common practice in the local construction industry, unless there is a requirement for use of such product or method (ie; U.S.

standard electrical devices). In general, the materials shall meet all necessary requirements and be specified briefly in the project specifications.

5.8.3. Spanish Translation of Specifications: It is a requirement to submit a Spanish translation of project specifications. Project drawings shall contain both the English and Spanish versions.

5.9. Cost Estimate Requirements: It shall provide a detailed breakdown of all items required for the construction project based on this design. The Construction Cost Estimate Breakdown shall be developed, at least, in accordance with the divisions of the UFGS, and marked "For Official Use Only", and itemized in such a manner that effective construction management invoicing can be executed by Construction Management department. In addition, a cost estimate itemized in Uniformat II classification, can be requested by Civil Engineering Design section at no additional cost/time for the Government. Cost estimates shall be prepared separately for each funding source category. Summary sheets of not more than 4 pages shall be provided.

5.10. Correspondence: The Contractor shall forward all correspondence pertaining to this contract to the Morón Air Base Contracting Officer or authorized representative including submittal packages, minutes of meeting and all pertinent documents. The only exception to this requirement is the 100% submittal, which shall be delivered directly to Civil Engineering of Morón Air Base.

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5.11. Minutes. The Contractor is responsible for recording, typing, and preparing the meeting minutes of all pre-design and design review conferences for their distribution.

6. COORDINATION The Contracting Officer or authorized representative, in coordination with his technical representative, shall establish liaison between the Contractor and all U.S. Government agencies for general and detailed technical information necessary to completing the terms of the contract. The Contracting Officer or authorized representative, in conjunction with the technical representative, shall assist the Contractor to gain access to Base and facilities necessary to complete the terms of the contract.

7. MATERIALS TO BE MADE AVAILABLE BY THE GOVERNMENT PRIOR TO

DESIGN START: The Government shall provide access to the Contractor to the following materials prior to design start:

1. Existing record drawings.

2. Government publications and criteria shall be available for review, during normal duty hours, at the Base Civil Engineering Office, Bldg 202, of Morón Air Base, Spain.

3. One copy of the facility as-built drawings necessary for design.

4. Project, project register number, title block and drawing frame to be used for final contract drawings in AutoCAD 2023 file.

5. Key Map of Spain, Vicinity Plan, Base Map, Reference Key, logos, drawing schedule table and project coordination table for the cover sheet in AutoCAD .2023 file.

6. AutoCAD seed files, color table, font resource files used for the creation of AutoCAD design files.

7. A sample of Cover Sheet and Second Sheet. These samples are to be strictly adhered to when formatting the cover and second sheets for each project. The Contractor shall be required to edit the list of abbreviations.

8. Vicinity, Location and Base information for the project location in ESRI (Environmental Systems Research Institute) Geodatabase, as well as reference control points in UTM WGS84 coordinates system.

9. Submittal Sheet for project design packages.

10. Standard specification cover sheet.

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11. Files of existing site and facilities’ plans, details and utility plan files shall be made available to the Contractor. The Contractor shall research the files of all applicable drawings and generate a list of any document that is deemed necessary. The Government shall provide copies of the drawings within 72 working hours of the Contractor's request. All provided drawings in either hard copy or digital drawing file formats are record drawings and not as-built drawings. Air Force record drawings are from past construction projects that may not reflect the true as-built condition. The Air Force shall provide one full size copy of each drawing required. Any additional copies of any one particular drawing shall be at a reduced scale, normally half size.

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PART 5 - PERFORMANCE TECHNICAL SPECIFICATIONS

1. MECHANICAL WORKS (PLUMBING)

1.1. Sanitary Fixtures:

1.1.1. WC Bowl (Equal to the existing one to be replaced): with low tank: vitreous porcelain:

1) WC bowl with trap, 2) joint union, 3) fixing set, 4) seat and cover in heat-hardened resin, with stainless steel hinges. AENOR certified.

1.1.2. Wash Basins: Recessed wash basin (Equal to the existing one to be replaced):

Enameled porcelain with one center hole for single faucet mixer. AENOR certified.

1.1.2.1. Single faucet mixer for wash basin. Provided with non-return valves and filters (Sprint). Chromed steel with ceramic discs, fixed faucet, aerator and flexible supply pipes. AENOR certified.

1.1.3. Two Basin Kitchen Sink (Equal to the existing one to be replaced): Completely made of stainless steel 18/10 Cr-Ni 1 mm thick. Suitable for countertop. Single spout faucet monoblock mixer with ceramic disc cartridge and swivel spout with extensible hose, aerated.

1.1.4. Bathtub (Equal to the existing one to be replaced): in vitreous porcelain. AENOR certified. Single faucet shower mixer chromed metal ½”- ½” for shower/bath (40 l/min) with flow limiter. Shower arm with swivel jet sprayer shower head. AENOR certified.

1.1.5. Shower (Equal to the existing one to be replaced): in vitreous porcelain. AENOR certified. Single faucet shower mixer chromed metal ½”- ½” for shower (40 l/min) with flow limiter.

Shower arm with swivel jet sprayer shower head. AENOR certified.

1.1.6. Sink (Equal to the existing one to be replaced): in vitreous porcelain. AENOR certified. Mixer faucet for console for sink. Provided with non-return valves and filters. Chromed steel with ceramic discs, swivel faucet, aerator. AENOR certified.

1.1.7. Water saving devices: water saving devices shall be installed as required, on the following element: Mixers for wash basins, sinks and kitchen sink: aerators shall be connected in the faucets substituting the regular filters. These shall mix the water with air producing an abundant and soft flow.

1.2. Tank for the Production and Accumulation of Sanitary Hot Water (Equal to the existing one to be replaced): Sanitary hot water producing system heated by means of an electrical resistance for vertical installation. Insulated with rigid polyurethane foam. Provided with incorporated

SOW 25 of 112 control panel and temperature regulating controls, rated 8 bar safety valve, shielded electrical resistance and magnesium anode cathodic protection. AENOR certified.

Accumulation volume 60 Gal (227 liters) Electric Power 4.5 Kw Voltage 208 v/1 phase/60 Hz

1.3. Underground water pipes and accessories:

1.3.1. Polyethylene piping PN10: Shall be high density polyethylene σ80, (PE100), density 0.955kg/m³. PN10, AENOR certified. Apt for human consumption. Black color. Unions shall be electro-fused. Polyethylene pipe shall be of the following thickness:

Nominal Diameter Outside Diameter (UNE) Thickness Inches mm mm 1 1/4 40 2.4 1 ½ 50 3.0 2 63 3.8 2 ½ 75 4.5 3 90 5.4 4 110 6.6 6 160 9.5 8 200 11.9 10 250 14.8 12 315 18.7

1.3.2. Gate valve: GGG50 ductile cast iron. PN16. EPDM elastic closure. Stainless steel axis. Epoxy-resin paint on the interior and exterior (minimum 250 microns).

1.3.3. Valve box: All underground shut-off water valves will be installed with a thrust block, valve box and cover, as indicated on the drawings. Concrete shall be HM-20-B-20-IIa. Underground metallic components shall be coated with epoxy paint. The cover will be painted in yellow.

1.3.3.1. Cast Protection for Valve Box with Support and Cover (BBR 2145 C-250): Hydraulic closure device for valve box made of spherical graphite cast according to EN1563, class 250, equipped to insert in PVC DN 250 pipes including watertight gaskets. Coated with epoxy-polyester paint, 100 microns thick minimum. The words “Agua” & “Water” (both) shall be cast into covers so that it is plainly visible. The piece of PVC pipe to fix to the support will be PN 10 (for 10 kg/cm2 pressure).

1.3.4. Dielectric sleeve fitting: Shall be of the union or flange type and be provided where connections of ferrous to non-ferrous piping materials are made.

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1.3.5. Thrust blocking: All underground piping elbows and new-existing piping connections shall include concrete thrust blocking. Concrete shall be HM-20-B-20-IIa. Thrust blocking dimensions shall be in accordance with the table shown on the drawings.

1.3.6. Geotextile: The geotextile shall wrap the sand around the new water pipe. 100% polypropylene virgin fibers 300 g/m². The materials and equipment shall comply with Article 290 and 422 of PG-3 with the following exceptions:

1.3.6.1. The deformation energy of the geotextile until its rupture shall be >6.4 KN/m.

1.3.6.2. The tensile strength in the main direction shall be >20 KN/m (nominal value less tolerance). The tensile strength in one direction shall not be 1.5 times greater than the tensile strength in the perpendicular direction.

1.3.6.3. The strength that causes a deformation of 20% of the elongation at the break point shall be <80% of the tensile strength. This aspect has to be fulfilled both in the direction of maximum tensile strength and in the direction perpendicular thereto.

1.3.6.4. The elongation at maximum load or deformation at break shall be> 54% (nominal value less tolerance).

1.3.6.5. The resistance to dynamic perforation (cone drop) shall be <13 mm (nominal value plus tolerance).

1.3.6.6. Static puncture resistance (CBR drilling test) shall be> 3.60 KN (nominal value less tolerance)

1.3.6.7. The durability shall be ≥ 25 years on natural soils with 4 <pH <9 and a temperature <25 ° C.

1.3.6.8. The geotextile shall not be stored out in the open for more than 15 days. Geotextiles shall not be used if the date of manufacture is 12 months or longer. The geotextile shall be executed in compliance with Article 290 and 422 of PG-3. The overlap shall be ≥50 cm.

1.3.7. GPS Survey: The Contractor shall conduct a GPS (Global Positioning System) topographic study of all the installed or reinstalled components of the new water lines such as: pipes, elbows, boxes, bends, valves, backflow preventers, hose bibbs, etc.

1.3.7.1. The GPS equipment shall be able to measure data with a precision error of less than 1 meter. The Contractor shall provide a table in Excel format listing each one of the above-mentioned elements including the building or area being supplied, the pipe/valve/backflow preventer diameter, and the UTM zone 30 projection coordinates referencing the WGS84 Geodetic System. Government personnel responsible for GeoBase will provide UTM coordinates from one of the Morón Base stations in order to calibrate or tune up the Contractor’s GPS equipment.

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1.3.8. Water pipe tightness testing: Water piping shall be subjected to a tightness test accomplished in accordance with norm UNE 100-151-88.

1.3.9. Water pipe disinfection: All potable water piping shall be disinfected by a mixture containing not less than 0.27 Kg of high-test calcium hypochlorite or an equivalent amount of chlorinated lime (about 1 Kg to each 3800 liters of water), which provides not less than 50 ppm of available chlorine. The mixture shall be injected into the system and retained for not less than 12 hours. The system shall then be drained and flushed. The contractor shall have a certified laboratory collect and analyze the water sample for fecal coliforms, e-coli, pH and residual chlorine. The contractor shall submit the laboratory results that demonstrate the water to be potable. The line shall not be placed in service until the contractor is notified by the Contracting Officer Representative to put the line back into service. Should the results of the tests return positive for any of the parameters listed above, the Contractor will repeat the disinfection process until results indicate that the line is properly disinfected and approved for reconnection to the system.

1.4. Plumbing:

1.4.1. Polypropylene (PP-R) water piping: Piping for domestic cold water, domestic hot water, domestic hot water recirculation and non-potable water shall be plastic polypropylene (PP-R) pipe in accordance with UNE EN 15874-2 adequate for domestic and human consumption. PP-R pipe shall be Class 2 Serie 2,5. PP-R pipe shall be of the following thickness:

Nominal Diameter Inside Diameter (UNE) Thickness mm mm mm 12 8,0 2,0 16 10,7 2,7 20 13,3 3,3 25 16,7 4,2 32 21,3 5,3 40 26,7 6,7 50 33,3 8,3 63 42,0 10,5 75 50,0 12,5 90 60,0 15,0 110 73,3 18,3 125 83,3 20,8 140 93,3 23,3 160 106,7 26,7

1.4.1.1. Fittings shall be electro welded or thermo-welded, and made of PP-R. All elbows shall be of long radius. Unions for ferrous to non ferrous pipe material shall be accomplished with dielectric sleeve fittings. Polypropylene piping that will be exposed to UV light shall be provided with a Factory applied UV resistant coating.

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1.4.2. Insulation: pipes insulation for domestic cold and hot water shall comply with the following requirements: (Armaflex Ultima)

Thermal conductivity at 0ºC: 0.040 W/mºK Vapor barrier characteristics: µ ≥ 7.000 Fire resistance: B(L)-S1,d0

1.4.3. Pipe hangers: Pipe hangers shall be a standard commercial product and be appropriate for each type of particular application.

1.4.4. Ball valves: Body: brass Cu Zn40 Pb2. Sphere: micropolished brass and chrome plated. Duraluminum handle. with connection for welding to the PP-R. Alternatively materials, Brass and PP-R compatible with the system.

1.4.5. Check valves: Shall be of the spring disc type (stainless steel) PN25 for all piping diameters, of solid brass, threaded with connection for welding to the lines. Compatible with PP-R piping system.

1.4.6. Dielectric sleeve fitting: Shall be of the union or flange type and be provided where connections of ferrous to non-ferrous piping materials are made.

1.4.7. Automatic air vents: Buoy type 3/8”, PN16. Body and vacuum breaker of brass. Cork gasket. Buoy made of synthetic material.

1.4.8. Thermostatic mixing valve (TA-MATIC 3400): DN65 PN10 flanged connections.

Maximum temperature 90ºC. The valve shall be supplied preset at 48ºC but shall be set, depending on the needs, in the range of 36 to 53 ºC. Valve body manufactured in SS 5204 gunmetal.

Temperature-sensitive elements shall be manufactured in copper alloy and liquid ACETIDINA. Shall include safety device to instantaneously interrupt hot water service when a cold water outage exists.

Provide blank cap in order to cancel the return path.

1.4.9. Hose bibb: Copper or brass , hex shoulder sillcock with Tee handle. ¾” hose thread (American), male IPS connection. Maximum pressure 8.61 bar (125 psi). It shall include hose connection vacuum breaker.

1.4.10. Hose Connection Vacuum Breaker (HCVB) (8B): ¾” hose thread female inlet & ¾” male outlet connection. Maximum pressure 125 psi. Maximum temperature 180 ºF. Brass body, with breakway set screw to prevent removal, drainable. Shall be furnished and installed by the Contractor in strict accordance with manufacturer instructions. Tests shall be accomplished by the Government.

1.4.11. Lead testing: The Contractor shall perform Lead Content testing in the potable water system. A minimum of 2 tests per house before the project execution and 2 test per house after project execution shall be performed. The Base Environmental department shall indicate the exact location and sampling method prior the actual testing.

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1.5. Solar water equipment:

1.5.1. Compact solar system upper tank thermosiphon (Termicol; TA 200PF-01 or equal approved).

1.5.1.1. Solar collector: dimensions 2130x970x85 mm. Total surface: 2.07 m². Surface area of the absorber:1.88 m². Optical performance: 0.76. Loss factors: K1=6.66 W/m²K, K1=0.007 W/m²K.

Empty weight: 37Kg. Fluid capacity: 1.02. Material: aluminum shell, tempered glass 3.2 mm thick, semi-rigid rockwool inslutation 40 mm thick. Absorber coating: selective coat. Aluminum fins 0.4 mm thick. 8x8mm diameter channels. Manifold pipe diameter 18mm.

1.5.1.2. Heat storage tank: The tanks are made of enameled steel sheets with a gas chamber in the membrane of the tank provides for the expansion of the primary circuit fluid so that it does not need an expansion tank for normal operation. Nominal volume: 200 liters. Exchange surface: 0.97 m². Primary circuit volume: 10 liters. Secondary circuit maximum temperature: 90 ºC. Total lenght:

1.268 mm. Exterior diameter: 575 mm. Length exchanger: 523 mm. Empty weight: 95 kg. Inside protection: enamelling DIN 4753. Insulation: 25 mm injected polyurethane. Exterior protection:

galvanized Steel and lackered. Magnesium anode Cathodic Protection system.

1.5.1.3. Protection and safety systems: Magnesium anode, dielectric protectors in the cold/hot water connections and safety valves in the primary circuit (rated to 2.5 bars) and secondary circuit (rated to 6 bars).

1.5.2. Copper water piping: Piping for primary circuit and drain shall be seamless drawn copper pipe in accordance with UNE EN 1057. Copper pipe installed shall be hard drawn (H8) and soft annealed (0) when embedded in floors or in wall chases or when otherwise approved. Copper pipe shall be of the following thickness:

Nominal Diameter Outside Diameter (UNE) Thickness Inches mm mm

½ 18 1 ¾ 22 1 1 28 1 1 ¼ 35 1 1 ½ 42 1 2 54 1.2 2 ½ 64 1.2 3 76 2 4 108 2

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1.5.2.1. Maximum phosphor content shall be 0.012%. Fittings shall be brazed or solder jointed and made of copper, brass or bronze. All elbows shall be of long radius. Unions for ferrous to non ferrous pipe material shall be accomplished with dielectric sleeve fittings.

1.5.3. Valves and accessories:

1.5.3.1. Ball Valves: All used valves for cut-off on copper pipes shall be ball valves. All 3" or less diameter valves shall be copper with threaded ends or welded ends, with a threaded seal and adequate metallic seats for a working pressure of 10 Kg/cm². Body: brass Cu Zn40 Pb2. Sphere:

micropolished brass and chrome plated. Duraluminum handle.

1.5.3.2. Check Valves: Shall be of the spring type (stainless steel) PN25 for all piping diameters, of solid brass, threaded with connection for welding to the lines.

1.5.3.3. Dielectric Sleeve Fitting: Shall be of the union or flange type and be provided where connections of ferrous to non-ferrous piping materials are made.

1.5.3.4. Pipe Hangers: Pipe hangers shall be a standard commercial product and be appropriate for each type of particular application.

1.5.4. Expansion joint seals for water circuits: Shall be of neoprene and nylon, precision machined molded. Shall incorporate cadmium steel flanges tap threaded to coincide with twin flanges of 150 lbs.ASA.