US Army Corps of Engineers Europe District

APO AE 09049

ARMENIA\am36

Statement of Work OHASIS Number:85872 Project No.: 574554 Fiscal Year: 2026

Water Supply System for Bazum Village Armenia Bazum, Armenia

Prepared by:

Design Branch

Engineering Division 27 March 2026

01 10 10 Statement of Work Water Supply System for Bazum Village

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SECTION 01 10 10

STATEMENT OF WORK

Section table of contents:

*SEE NAVIGATION TAB

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL (Not applicable)

4 STRUCTURAL

5 ELECTRICAL & COMMUNICATIONS

6 MECHANICAL & PLUMBING

7 FIRE PROTECTION (Not applicable) 8 SUSTAINABILITY (Not applicable) 9 CYBERSECURITY (Not applicable)

ATTACHMENTS

Attachment # 1 Location Map Attachment # 2A & 2B Conceptual Site Plans (2A - Option 1 and 2B - Option 2) Attachment # 3 Dedication Plaque Attachment # 4 01-2016 Preparation of Structural Calculations English+German Attachment # 5 Scope for Independent Structural Proofing

1.0 GENERAL

1.1 PROJECT DESCRIPTION

The Request for Proposal (RFP) provides parameters for a design-build project for construction of a water collection system in Bazum, Armenia.

General Project Location: 40°54'6.89"N, 44°25'40.38"E

Refer to the attached Site Location Map.

This project will provide a sustainable water supply and storage system for the Bazum community in northern Armenia.

The project includes the following general items of work. Water will be obtained from the river or from a groundwater well. There are detailed requirements contained elsewhere in this Statement of Work:

a. Clear, grub, and grade the site

b. Provide site improvements including roads and parking/vehicle access

c. Conduct a hydrologic study of the watershed

d. Conduct a groundwater survey

e. Construct (2) 100,000-liter tanks

f. Construction of chlorination system and storage station

g. Construction of pump and treatment enclosure structure

h. Construction of foundation for pump and treatment enclosure

i. Construct foundation for water tanks

j. Pipes from the tanks to the water collection system (pump)

k. Design a water supply system from the river (Option 1)

a. Construct new stilling basin

b. Construct intake structure & piping

c. Pump to pull water from river

l. Construct groundwater well (Option 2)

a. Drilled water well (estimated 150m deep)

b. Pump for the well

m. Repair existing concrete fence that encloses the existing abandoned water storage tank

n. Provide power to water supply system

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o. Provide communications to support automation systems

p. Provide a telecommunications enclosure near the water tanks

q. Provide interior and site security lighting

r. Provide fences to replace displaced existing fences to accommodate improvements and to prevent access to all water tanks, basins, and enclosures.

s. Realign and replace existing fencing to align with new aggregate roads.

1.2 GENERAL REQUIREMENTS

The Contractor must deliver fully functional, turnkey type facilities (without mobile furniture) as described in this document. The work includes - but is not limited to - design, demolition, fabrication, delivery, installation, construction, functionality testing, operational permitting, and site work.

The facility in this project must be complete and usable to meet codes and technical and functional requirements per this Statement of Work (SOW). The proposal price must include all design, calculations, approvals, certificates, fees, labor, material, equipment, direct overhead, indirect overhead, general and administrative expenses (G&A) and general conditions to complete this project as described in the SOW.

Plans and Specifications must follow UFC 1-300-01 paragraph 1.7.2. Plans and Specifications must follow UFC 1-300-01 paragraphs 2-2 except do not list English measurements.

These design and product requirements are minimum requisites. Compliance with the provisions of this section by subcontractors is the responsibility of the Contractor.

1.2.1 BASE ITEMS AND OPTIONAL ITEMS

This Statement of Work addresses the technical requirements necessary to complete all work associated with this project. For information and requirements regarding the allocation of pricing between elements of the work, refer to Specification Section 01 22 00 PRICE AND PAYMENT PROCEDURES. The Schedule of Items identifies the breakdown between the individual base items and optional items for all work identified in this Statement of Work, associated drawings, and attachments. All work as described in these documents is included in either the Base or Optional Items. Consider all items not specifically identified in the Optional Items as part of the Base Items.

1.3 SUBMITTALS

Designer of Record approval is required for submittals with a “DA” designation.

Government approval is required for submittals with a “G” or “GA” designation.

Submittals having an “FIO” designation are for Contractor Quality Control approval. Submit the following to the Contracting Officer (KO) in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals Hydrological Survey; DA/GA

Groundwater Investigation; DA/GA

SD-05 Design Data Hydrologic and groundwater studies course of action; DA/GA 65% Pre-Final Design; DA/GA 95% Final Design; DA/GA 100% Corrected Final Design; DA/GA

SD-06 Test Reports Test Results and Reports; FIO

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1.3.1 DESIGN SUBMITTALS

Provide a complete design package at each milestone, as described in RFP Section 01 33 16-DESIGN AFTER AWARD. The milestones for this project are indicated above in Section 1.3 SUBMITTALS. The specific requirements of each milestone are described in each discipline-specific section of this Specification.

1.3.2 REPORTS

Provide all test results and reports identified in this SOW to the Government as a submittal in accordance with RFP Section 01 33 00-SUBMITTAL PROCEDURES. Submittals will be considered for information only (FIO) submittals unless specifically identified as a submittal requiring government approval. Coordinate with the KO after award for the specific items to be included in the submittal register.

1.4 MATERIALS AND EQUIPMENT

Materials and products used must be durable, heavy duty, industry standard. The equipment must be the manufacturer’s standard quality and must be compatible with all other equipment and materials within the system or assembly. Equipment and materials must include all connections and accessories necessary to ensure operability and correct installation according to manufacturer’s requirements.

Provide a nameplate secured to each major piece of equipment. Each nameplate must have the manufacturer’s name, address, contact information, type or style, model or serial number, and catalog number. The definition of a “major piece of equipment” is at the discretion of the KO.

1.4.1 LIFE-SPAN

The facility and the installed equipment must be permanent construction with an expected lifespan of more than 25 years.

1.4.2 MAINTAINABILITY

Provide low maintenance materials and systems appropriate for the project climate and location.

1.4.3 OPERABILITY

Systems (including but not limited to architectural, electrical, communications, and mechanical systems) must be simple to operate and easy to maintain.

1.4.4 STANDARDIZATION

Provide standardized materials, products, equipment, and systems to minimize the requirements for replacement parts, storage facilities, and service requirements.

1.5 DESIGN DIMENSIONS

Develop the design using the metric system.

1.6 DESIGN CRITERIA

Project design, site facilities, utility systems and material standards must be in accordance with Host Nation building codes (current versions as of the date of RFP, unless otherwise indicated). In the absence of Host Nation building codes, use the International Building Code (IBC) and the codes, technical standards, and regulations referenced in this RFP.

While this RFP references various source standards and specifications, all design documents must meet Host Nation codes and requirements. It is the designer's responsibility to demonstrate that the Host Nation standard is equal to the cited standard or specifications being supplanted. Apply the more restrictive standards when conflicts arise between the requirements of this RFP and any referenced or other applicable codes, standards or regulations. If equivalency cannot be met, use the more stringent requirement and quote both codes verbatim in correspondence

15-Apr-26 Page 5 of 48 to the KO. The designer is responsible to determine the required material and execution standards where specific standards are not indicated.

Provide an electronic copy of the local Host Nation standards and building codes in their original language as related to facility design and construction.

1.7 SPECIAL CONSTRUCTION REQUIREMENTS

1.7.1 DEMOLITION

The Contractor is responsible for all required demolition as indicated in this scope.

1.7.1.1 ABATEMENT AND DISPOSAL

All demolished materials, including hazardous materials identified below, must be abated and disposed of in accordance with local laws, codes and regulations. The Contractor is responsible for all required testing before, during and after demolitions as well as for all required compliance with safety standards.

1.7.1.2 LOCATION OF HAZARDOUS MATERIAL

The Contractor is responsible to survey the site and determine if hazardous materials exist. If hazardous materials are found to exist, immediately notify the KO and provide the results of the relevant sampling and testing. Provide the hazardous material report no later than 30 days after Notice to Proceed (NTP) for information and approval.

1.7.2 PROTECTION OF WORK AREA

1.7.2.1 DUST AND DEBRIS CONTAINMNET

Seal the project area with construction barriers and dust partitions in order to contain construction dust and debris and maintain a clean environment outside of the work area. Patch and repairing any damage caused during construction.

Coordinate the locations of barriers with the Government and Host Nation prior to the start of work.

1.7.2.2 PROTECTION OF FURNITURE, FIXTURES, AND EQUIPMENT

Protect all existing utilities and structures that remain within the work area.

The Contractor is responsible for repairing or replacing any damage caused during construction. The Contractor must conduct a preconstruction survey of utilities and other features with a government representative present.

1.7.2.3 NOISE AND VIBRATION CONTROL

Employ demolition and construction methods that minimize the production of sound and vibration. Coordinate the schedule of especially loud or disruptive activities with the KO prior to the start of work.

1.7.3 SEQUENCING OF CONSTRUCTION WORK

The Contractor must sequence construction to allow the highway and adjacent site to remain accessible during construction. Do not block access to occupied areas during construction. Utility and communication services must remain functional in all occupied areas.

Some relocation of storm drainage, the gravel access road, and fences may be required to comply with this requirement, all restrictions are listed below:

a. The existing highway adjacent to the site must remain fully open during construction.

b. Vehicle access to other buildings near the site must always be possible during construction.

END OF SECTION

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2.0 CIVIL AND GEOTECHNICAL

Provide and perform civil engineering design and construction services as required to provide a complete, accessible, functional, and usable project. The Contractor is required to extensively coordinate civil design and construction work with the scope of the other disciplines described in this SOW.

2.1 SCOPE SUMMARY

Civil works for this project include, but are not limited to, site survey, geotechnical investigation, site layout, demolition, earthwork, storm system, hydrological survey, groundwater investigation, water system, pavement, road repair/reconstruction, fencing, outdoor furnishings, and landscaping. Refer to the bid schedule for which of these are base bid or optional.

2.2 EXISTING CONDITIONS

The existing site is in a rural area adjacent to the M3 highway, just before it enters a tunnel. Near where the river meets the highway, there is an area partially enclosed with a concrete fence that contains an existing, buried concrete water tank that was never brought into service. The underground tank was reported to have had a capacity of 400 metric tons and was abandoned in the 1980’s. The existing concrete fence is in need of repair. Approximately 30% of the 50 meters of fence are damaged and in need of repair.

The river is named Bazumtad (or Բազումթադ in Armenian), and in this document will be referred to as the river.

The river has a gravel road the runs along the north side (left side when looking downstream) for the entire project area that was investigated.

The gravel road has an existing chain link fence running along the landward shoulder. The fenced area contains an additional dirt road, drainage structures, access to tunnel infrastructure, the transformer station for the tunnel, grass and small vegetation, and other buildings that are lightly used or abandoned.

2.2.1 TOPOGRAPHY

There is no known topographic survey for the project site. The existing site contains adjacent buildings, gravel roads, utilities, fences, and vegetation as shown on the attached Conceptual Site Plan. The site to be used for structures generally has a gentle slope and contains a river and riverbank. Steep valley walls are on the north and south sides of the site. The existing information shown on the attached Conceptual Site Plan was compiled from site visit notes, Google Earth, and site photos.

2.2.2 UTILITIES

There are existing storm connections located at the around the proposed site. The highway tunnel and other areas have storm drainage pipes that drain into the river.

There is no functional water system at the site.

There is no sanitary system at the site.

Power is available near the site. Refer to the attached proposed site plan for locations of proposed power sources.

Contractor must verify all utility locations (surface and subsurface) in the field prior to the first design submittal.

2.2.3 GEOTECHNICAL

There is no geotechnical information available for the project site.

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The Contractor must perform a Geotechnical Investigation and submit a Geotechnical Report as part of the Design Analysis. Refer to other sections of this SOW for the requirements of the Geotechnical Investigations and Report.

2.2.4 ENVIRONMENTAL

There are no known environmental protection areas or archeological preservation areas on the project site.

There is no prior knowledge of any hazardous or contaminated materials in the site’s soil.

Environmental related Host Nation requirements for drainage, flooding, and erosion control must be followed during design development, as well as any Host Nation requirements for chemical storage or handling.

2.2.5 EXISTING CONDITIONS INVESTIGATION

Prior to bid, investigate the general and local conditions which can affect the work and/or its cost, including but not limited to:

a. Weather, river stages, seismic activity (earthquakes), or similar physical conditions at the site.

b. Surface and subsurface materials or obstacles to be encountered insofar as this information is reasonably ascertainable from an inspection of the site and due diligence research of as-built drawings, geotechnical reports, environmental reports, and publicly available information on the site.

c. Mobilization and staging constraints.

2.3 DESIGN SUBMITTALS

Provide civil design submittals in accordance with RFP Section 01 33 16-DESIGN AFTER AWARD and in compliance with SOW Section 1.0 – GENERAL.

Prior to the prefinal (65%) submittal, submit the hydrological survey and groundwater study, along with the recommendations and conclusions that come from these studies.

65% Design Submittal:

a. Pre-Final Design Analysis of civil features.

b. Final Site Survey (include in the Design Analysis).

c. Final Geotechnical Report (include in the Design Analysis).

d. Final Existing Conditions Plan.

e. Pre-Final Demolition Plan

f. Pre-Final Site Layout Plans - Indicate existing and proposed Civil features.

Include other disciplines’ features that affect the Design (buildings, mechanical structures, electrical utilities, etc.).

g. Pre-Final Grading Profiles, Cross Sections, and Details. Include spot grades and slopes in Grading Plan. Include foundation profiles, cross sections, and details. Include erosion control design.

h. Pre-Final Pavement Plans, Profiles, Trench Cross Sections, and Details

i. Pre-Final Utility (Electrical and Water) Profiles, Cross Sections, and

Details.

j. Pre-Final Fencing and Outdoor Furnishings Plans & Details

k. Pre-Final Landscape Plan and Details, including seed mix and seed coverage rate, if applicable

l. Preliminary Civil Specifications

95% Design Submittal:

Update all items from the 65% Design Submittal to 95% (Final) Design. Incorporate all 65% design comments.

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100% Submittal:

The 100% Submittal provides a complete and final set of contract documents ready for construction. Update all Final submittals from 95% to a corrected Final submittal. Address all previous government review comments before submitting.

As Built Drawing Submittal:

In addition to the as-built requirements discussed in RFP Section 01 78 00- CLOSEOUT SUBMITTALS, provide a topographical survey of the site per requirements of SOW Section 2.6-SITE SURVEY. Include existing utility lines or structures (both modified and unmodified) encountered in the construction footprint that were not located on the original Site Survey.

2.3.1 DESIGN ANALYSIS

Submit a Design Analysis in accordance with RFP Section 01 33 16-DESIGN AFTER AWARD. Provide a Design Analysis for all Civil features that documents significant design choices and substantiates design compliance with contract requirements, applicable codes and standards. Documentation includes narrative, calculations, photographs, sketches, and catalog cut sheets. Reference all applicable regulations, standards, and criteria for the design. Reference sources are subject to Government approval. Provide design assumptions. For design choices, discuss alternative systems considered, and provide rationale for the selected alternative.

The Design Analysis includes but is not limited to:

a. Discussion of Site Layout constraints and design decisions, including but not limited to, land use, vehicle and pedestrian access, location of stilling basin, orientation of features on-site, setbacks from site features, minimizing utility lengths, minimizing earthwork and tree removal, and future expansion.

b. Discussion of Demolition constraints and design decisions. Include discussion on how access will be provided during construction, and how each utility will be maintained and operated during construction.

c. Discussion of Earthwork and Site Grading constraints and design decisions.

Provide cut and fill calculations. Provide slope stability calculations for slopes steeper than 2H:1V or slopes supporting proposed structures. Include pertinent geotechnical information that affects earthwork.

d. Discussion of Storm system constraints and design decisions. Provide a hydrologic and hydraulic analysis of the storm system, including offsite areas that contribute to and influence the project’s storm system. Provide drainage basin map(s), rainfall data, and coefficients used. For each section of pipe, include analyses indicating pipe size, friction factor, length, elevations at each end of pipe, slope, design flow (Q), maximum flow capacity, design depth of flow, design percentage full, and design flow velocity. Analyze how the storm system of the proposed enclosures and tanks will interact with the existing stormwater pipes in and around the proposed site. Provide Inlet design calculations. Provide calculations for sizing of structures, including detention, infiltration, and LID features. Provide documentation for the 100 year flood elevation determination. Provide Pre and Post Development comparisons for detention/retention facilities. Use the Rational Method or TR-55 for analysis and design. In the absence of Host Nation or Installation requirements, use a minimum 10-year storm frequency for analysis and design. Provide calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10-Utilities.

Include pertinent geotechnical information that affects the storm system.

Confirm that the existing receiving system has adequate capacity to receive the additional stormwater flow generated by the project.

e. Discussion of the hydrological survey and groundwater study and why the picked Option was chosen.

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f. [If water is collected from the river.] Discussion of water system constraints, design decisions and source. Provide calculations to demonstrate water source meets project requirements, including demand, water pipe sizing, stilling basin design, design water pressure and flow rates at the water collection point. Provide field conducted flow tests from the pump system. Provide lab assured water quality analysis of source water at intake. Provide discussions on design chlorination system and piping/storage tank for materials. Provide calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10-Utilities. Provide water tank calculations.

g. [If water is collected from groundwater.] Discussion of Water system constraints, design decisions and source. Provide calculations to demonstrate water system meets project requirements, including demand, water pipe sizing, design water pressure and flow rates from the well. Provide field conducted flow tests from the well. Provide lab assured ground water quality analysis in location of the proposed well. Provide discussions on design chlorination system and piping/storage tank for materials. Provide calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10-Utilities. Provide well and water tank calculations.

h. Discussion of Pavement constraints and design decisions. Provide the design vehicle(s) specifications. Demonstrate the turning path of the largest anticipated vehicle(s) in the most constrained situations on the site plans.

Provide vehicular circulation patterns using AutoTURN or equivalent method.

Provide calculations for the pavement section. Include traffic studies (if available). Provide design traffic calculations and assumptions. Include pertinent geotechnical information that affects the pavement design.

i. Discussion of Fencing constraints and design decisions.

j. Discussion of Outdoor Furnishings constraints and design decisions. Provide structural calculations for foundations if the foundation is designed by the Designer of Record. Calculations are not necessary if the foundation design is from an industry standard detail.

k. Discussion of Landscaping constraints and design decisions.

l. Site Survey as an appendix.

m. Geotechnical Investigation and Report as an appendix.

2.3.2 DESIGN DRAWINGS

Provide Civil design drawings of sufficient detail to address the requirements of each design submittal. Civil drawings include plans, profiles, cross sections, and details of Civil features for the project. Civil drawings also include temporary construction plans/methods that affect the design and construction of the project.

These temporary plans include mobilization, traffic control, erosion control, dewatering, shoring, construction sequence, etc. Design drawings include all necessary information (labeling, dimensioning, legend, details, notes, etc.) to allow for complete understanding and constructability of all proposed features.

Provide comprehensible differentiation between features that are proposed, existing, future, or proposed to be demolished by use of appropriate choice of line styles, line weights, and/or colors. Reference USACE A/E/C Graphics Standard for graphic requirements.

2.3.3 SPECIFICATIONS

Provide Civil specifications of sufficient detail to address the requirements of each design submittal. Specifications, when combined with the design drawings, allow for complete understanding and constructability of all proposed Civil features.

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2.4 DESIGN CRITERIA

Provide civil design in accordance with Host Nation codes. In the absence of Host Nation codes, use the latest release of the International Building Code (IBC) and the following codes and technical standards:

a. Uniform Facility Criteria (UFC) 3-201-01, Civil Engineering

b. UFC 3-220-01, Geotechnical Engineering

c. UFC 3-230-01, Water Storage, Distribution, and Transmission

d. UFC 3-250-01, Pavement Design for Roads and Parking Areas

e. USACE Protective Design Center Standard Fence Drawings

f. World Health Organization (WHO) Guidelines for Drinking-water Quality

g. USACE A/E/C Graphics Standard (ERDC/ITL TR-19-6)

h. ANSI/AWWA A100-06, Water Wells

i. AWWA M50 - Water Resources Planning

j. NTRP 4-04.2.13/FM 3-34.469/AFMAN 32-1072, Water-Well Drilling Operations

2.5 GEOTECHNICAL INVESTIGATION AND REPORT

Perform a geotechnical investigation and assessment of the project site to determine the subsurface conditions and geotechnical parameters for foundation, grading, and utility design. Perform the necessary amount of testing, borings and test pits at depths suitable for the project improvements. Include geotechnical investigation in areas where borrow material will be used. The Geotechnical work must be performed under the supervision of a professional geotechnical engineer registered with the jurisdiction having authority, and the report must be signed by the Geotechnical Engineer. In the absence of Host Nation codes, perform the geotechnical investigation and report per UFC 3-220-01, Geotechnical Engineering and IBC.

Coordinate testing locations with the KO to avoid impact to existing utilities and facility operations. Utility locates, permits, and vegetation clearing are the Contractor’s responsibility. Repair disturbed areas with a concrete patch in paved areas, and compacted soil in non-paved areas. The repaired area must be flush with the adjacent surface. Following restoration, stake and flag each of the hole locations with boring identification numbers. Provide a map indicating the borehole and test pit locations.

The water storage tank locations must have borings of at least 30m below the ground surface.

2.5.1 REPORT

Include, as a minimum, the following information:

a. Description of field work completed and equipment used; names, signatures and stamps of licensed professionals involved; name of companies involved.

b. A description of site subsurface conditions, regional geology, and seismic conditions at the site.

c. Site map of test pit locations.

d. High resolution color digital photographs of each borehole and test pit location.

e. Test pit logs with classification of all subsurface materials. The logs must distinguish fill materials from native materials, include all in‐situ test results, and include groundwater depth information, if groundwater is encountered. Distinguish between bedrock and rock boulders.

f. Reports of all the field and laboratory testing.

g. Recommendations for allowable bearing capacity for both static and dynamic conditions, expected settlement, type of foundation, minimum footing dimensions, lateral earth pressure parameters, and minimum depth of foundation for footings.

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h. The report must determine a ground site class in accordance with Eurocode EN 1998-1, table 3.1 or host nation equivalent. The geotechnical report must clearly indicate the criteria used to determine the ground type (shear wave velocity, blow count, or unconfined shear strength) and the ground type classification of the soil (Type A, B, C, etc.).

i. The geotechnical report must research potential for liquifiable soils, and if encountered how the liquification will be mitigated.

j. Recommendations for preparation, placement, and compaction of onsite soils, borrow material, soil replacement, structural fill, and trench backfill.

Include dewatering and temporary retaining structure needs.

k. Soil Resistivity.

l. Frost Depth.

m. Recommendations for the water well.

n. Recommendations for gravel pavement design and construction.

o. Calculations to support conclusions and recommendations.

2.5.2 DESIGN DRAWINGS AND SPECIFICATIONS

On the design drawings and/or specifications, include geotechnical information that affect the design of the project, including but is not limited to, boring locations, boring logs, groundwater and frost depths, and any details that convey requirements for site preparation.

Perform geotechnical investigations necessary for the design and construction of project features. Provide any geotechnical investigations and reports to the Government that are performed. Provide geotechnical information and assumptions in the Design Analysis to support design decisions. In the absence of geotechnical investigations performed on-site, an allowable soil bearing pressure is discussed in STRUCTURAL section 4.0. Perform geotechnical work required for construction (i.e. compaction tests, inspection of structure foundation excavations). In the absence of Host Nation standards, perform the geotechnical scope of work per UFC 3-220-01, Geotechnical Engineering and IBC.

2.6 SITE SURVEY

Conduct and provide a topographic survey from a licensed surveyor that includes all existing site information needed to design and construct the project. Survey must be conducted prior to the first design submittal. Include x, y, and z coordinates to the nearest 0.005 meters, dimensions, material, and basic characteristics of all features within the project site limits, as well as all features outside of the project site limits that will affect the design and construction of the project. Research record drawings to obtain utility and pavement information that is not visible from the surface. Provide notes indicating the sources and any limitations or assumptions of the data. Provide a copy of the survey in CAD, in addition to the paper/electronic requirements of the Design Analysis. Locate and show on the topographic survey the following information:

a. Property boundary, public right of way, and easements. Include the address numbers, street names, and easement records.

b. Survey monuments. Include description.

c. Spot elevations covering the entire survey limits showing high points, low points, grade changes, and at sufficient intervals to represent the general character of the terrain.

d. Contours in intervals of 0.25 meters.

e. Buildings and other miscellaneous structures. Provide finish floor elevation.

f. Pavements. Include pavement type, thicknesses, joint patterns, and pavement markings. Include top of curb and gutter elevations.

g. Surface Drainage Features. Indicate normal water level for the river.

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h. Utility lines and structures. Include rim elevations and invert elevations for utility structures; identification of lines as underground or aboveground; pipe sizes and materials.

i. Fences. Include height, material, direction of outrigger, gate locations and types.

j. Signs. Include sign text.

k. Trees: If there are trees that are to be protected, locate outside drip line of the trees, include general density and type of trees. For wooded areas with proposed tree removal, identify trees per Host Nation permitting requirements. Where selective clearing will be proposed, locate trees over 150-millimeter diameter at chest height, and include tree species, diameter at chest height, and dripline diameter.

l. Geotechnical boring locations.

m. Locate environmentally sensitive areas (determined and marked by others).

n. North arrow and scale of drawing.

o. Legend depicting the symbols and abbreviations used on the drawing.

p. Horizontal and vertical coordinate systems, date of survey, licensed surveyor name and license number.

Site information provided to the Contractor by the Government is not to be considered accurate Site Survey information. Utility field locates and as-built research are the responsibility of the Contractor.

Upon completion of construction, update the original survey with an As-built survey of the site as constructed, including underground utility locations and depths. Submit the As-built survey to the KO for approval.

Reference UFC 3-201-01, Civil Engineering, Section 2-2.2-SURVEYING for survey requirements. Use the Universal Transverse Mercator (UTM) coordinate system. The vertical coordinate system must be based on sea level.

2.7 HYDROLOGIC SURVEY

Perform a hydrologic study of the river and upstream watershed. A hydrologic study for a river intended as a drinking water source is a comprehensive evaluation of the water's quantity, quality, and surrounding environment. At a minimum, the study must include the following:

a. Streamflow Analysis: This involves measuring the volume of water flowing in the river over time, including seasonal variability and historical flood and drought frequency. Include an analysis of groundwater interaction, i.e.

determining if this river is fed by groundwater or if it leaks water into the ground. This will determine if the river can consistently provide the required amount of water.

b. Water Quality Assessment (Physical, Chemical, and Biological):

Provide measurements that show turbidity and temperature. Analyze the color, taste, and odor of the water.

Provide measurements of the chemical composition of the water, including pH, dissolved oxygen, nitrogen and phosphorus and salt content. Metal content like arsenic, lead, copper, and mercury should be analyzed. Measure for pesticides, herbicides, and industrial chemicals.

2.8 GROUNDWATER INVESTIGATION

a. Obtain a preliminary analysis of the area, including regional geology, any known previous investigation reports from the area, identification of potential contamination sources (such as agriculture operations and septic systems) climate data, and any known public and private wells in the area. Investigate any upstream pollution sources from industries and agricultural operations.

https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system

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b. Drill one or more exploratory boreholes and log each hole. Install monitoring wells and piezometers in the boreholes. Conduct a pumping test by pumping water for a period of time and monitoring the drawdown in the well and any observation wells. This will help provide the aquifer's transmissivity, hydraulic conductivity, and storativity.

Measure static water levels in all of the wells to determine groundwater flow direction and hydraulic gradients.

c. Collect water samples for laboratory analysis. Analyze the physical parameters (pH, electrical conductivity, turbidity, etc…), major ions in the water (Calcium, magnesium, sodium, etc…), Nitrate contamination, heavy metals, microorganism content, and other organic compounds, such as pesticides or VOCs (volatile organic compounds).

This data will be used to prepare a report that will inform the final decision of the borehole. The report shall include a conceptual hydrogeological model, borehole design recommendation, long term sustainable yield assessment, environmental impact assessment, and the conclusions derived from this data.

2.9 SITE LAYOUT

Locate the proposed building and other improvements as indicated on the attached Conceptual Site Plan. Amend the site layout as determined by the site-specific constraints, the owner’s preferences, accessibility, future expansion, and opportunities that are identified and evaluated as part of the Contractor’s scope of work.

The Contractor is responsible for all aspects of the project whether they are shown on the conceptual plan or not.

2.10 DEMOLITION

Remove existing structures, utilities, pavement, vegetation, and any other features to construct the proposed improvements. Remove trees with driplines within the footprint of the proposed improvements. Provide straight, neat sawcuts at limits of pavement removal. All contaminated soils discovered require special testing and disposal per Host Nation requirements.

2.10.1 CONSTRUCTION LIMITS

Do not disturb the project site beyond necessary for installation of proposed construction. Do not disturb any areas past the site’s property line. Show demolition work and limits of disturbance in the drawings. Stake-out the limits of disturbance on-site with temporary fencing before beginning construction.

2.10.2 ITEMS TO REMAIN IN PLACE WITHIN CONSTRUCTION LIMITS

Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government. Repair or replace damaged items as required by the KO. Construct and maintain shoring, bracing, and supports as required. Ensure that structural elements are not overloaded. Provide new supports and reinforcement for existing construction weakened by demolition, deconstruction, or removal work. Repairs, reinforcement, or structural replacement require approval by the KO prior to performing said work.

2.10.3 TREES

Unless otherwise noted on the attached Conceptual Site plan, protect trees which might be damaged during construction, with a 1.8-meter-high fence around the dripline of the tree(s), which is assumed to be the extent of the tree’s roots.

Trees are defined as larger than 150mm diameter at 1.3-meters above existing grade. Mitigate for tree removal per Host Nation requirements.

15-Apr-26 Page 14 of 48

2.10.4 UTILITIES

Any existing utilities encountered that are impacted by this project must be protected or relocated if protection is not feasible. Remove existing and abandoned utilities under or within 3.0 m of the foundation of any proposed facility or building foundation. Reroute existing utilities to remain in accordance with SOW Section 2.10-UTILITIES. Abandoned utilities must be removed up to the utility main (or next utility main junction) and capped. Manholes or underground structures to be abandoned must be removed to a minimum depth of 50 centimeters below finish grade. Fill abandoned manhole or structure per Section EARTHWORK requirements.

2.10.5 DUST, DEBRIS, AND EROSION CONTROL

Prevent the spread of dust, debris, and erosion from the project site. Install erosion control measures before beginning construction. Sweep pavements as often as necessary to control the spread of debris. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, erosion, or pollution. Remove snow, dust, dirt, and debris from work areas daily.

Remove and transport the debris in a manner that prevents spillage on streets or adjacent areas. Apply local regulations regarding hauling and disposal.

2.10.6 ADDITIONAL REQUIREMENTS

Reference RFP Section 00 74 01-SPECIAL CONDITIONS and 01 30 01-GENERAL REQUIREMENTS for additional demolition, protection, and permitting requirements.

2.11 EARTHWORK

Perform all earth work necessary for the installation of the proposed improvements.

2.11.1 PLANS AND SPECIFICATIONS

Define earthwork requirements in the plans and specifications. Include requirements for satisfactory material, borrow material, structural fill, utility trenches, replacement and improvement of on-site soils, soil compaction (for subgrades of structures, paving, and landscaped areas), compaction for utility trenches, maximum lift depths, density testing frequency, maximum temporary and permanent slopes, and engineered support systems. The earthwork requirements must not conflict with the recommendations in the Contractor-provided Geotechnical Report.

2.11.2 UNEXPLODED ORDNANCE (UXO) CLEARANCE

If UXO are discovered on site, stop work in the area and immediately notify the KO. UXO will be treated as an unforeseen site condition. Refer to RFP Section 01

30 01-GENERAL CONDITIONS.

2.11.3 CONTAMINATED SOIL

Inspect and test all soil according to Host Nation requirements. If hazardous materials are discovered, cease excavation, secure the area, and notify the KO for further guidance.

2.11.4 CULTURAL RESOURCES

Cultural resources, such as archaeological remains, may be uncovered during excavation operations. If suspected cultural remains are found, cease excavation, secure the area, and notify the KO for further guidance.

2.11.5 SATISFACTORY MATERIAL

Excavated material, if satisfactory for reuse per the Contractor’s Geotechnical Engineer, may be used on the project site where fill is required. Unsatisfactory material, and surplus excavated material not required for fill, must be disposed of offsite, and is the responsibility of the Contractor. Borrow material may be required for construction from sources off site. Borrow materials are to be free

15-Apr-26 Page 15 of 48 of hazardous materials and contaminants. Any soil brought in from off-site sources must be certified clean.

2.11.6 BACKFILL COMPACTION

In the absence of Host Nation requirements and geotechnical recommendations, fill and backfill must be placed in layers of 20 centimeters loose thickness and compacted to a minimum 95% of the maximum dry density as determined by Host Nation test method equivalent to ASTM D-1557 (Modified Proctor test). Provide density tests on all lifts at a frequency of 1 test per 40 square meters for foundations and parking, and 1 test per 30 meters of road and utility trench. Round up to nearest whole number (i.e. a 25 square meter foundation requires one test). The location of all tests must be selected by the Contractor’s geotechnical engineer, and copies of all test results must be furnished to the KO. All structure foundation excavations must be inspected and approved by the Contractor’s Geotechnical Engineer prior to placing concrete. Repair earthwork areas as recommended by the Contractor’s Geotechnical Engineer and approved by the KO.

2.11.7 ENGINEERED SOIL SUPPORT SYSTEMS

Provide engineered soil support systems (i.e. shoring) as required for the construction of the proposed improvements. The Contractor is responsible for all dewatering necessary for earthwork.

2.11.8 SITE GRADING

Provide site grading that directs storm water runoff away from structures.

Finished grades must not create stagnating water or ponding anywhere on the project site, nor create ponding on adjacent properties. Provide storm improvements if ponding is unavoidable.

Site grading around the enclosures and structures must meet Host Nation accessibility guidelines.

2.12 UTILITIES

This section applies to all project underground utilities for water conveyance and storage, including but not limited to water supply, storm drainage, electrical, and communications. See Sections 5.0-ELECTRICAL & COMMUNICATIONS for additional utility requirements.

Proposed utility main alignments must be at least 3.0-meters from facility or building foundations, except for building connections. Provide horizontal and vertical separation between new and existing utilities for rehabilitation, maintenance, repair or replacement. Provide utility line depths, bedding, and backfill as required by applicable requirements and geotechnical recommendations.

Minimum cover over pipes is 0.6 meters; greater than frost penetration; or sufficient to support imposed dead and live loads for the pipe materials used;

whichever is more stringent. Place plastic warning tape along the route of the buried pipe after installation at a height of 0.3-meters above the pipe.

Coordinate all required installation, relocation, improvement and protection of utilities held by third party (e.g. public or private utility). This includes coordination of any work to be performed by the utility owner. Choice of materials and products for utility installation must be coordinated with the utility owner (customer or third party) to ensure proper integration and compliance with existing systems and allow for easy maintenance and repair of the utilities in the future.

Provide utility materials per IBC requirements. Provide corrosion protection for utilities that provides the minimum life expectancy specified in Section 1.0- GENERAL. Any piping or equipment exposed to sunlight must be coated with

15-Apr-26 Page 16 of 48 protective coatings suitable for UV exposure with a minimum expected coating life of 10 years before recoating.

2.12.1 STORM SYSTEM

Provide grading to direct stormwater runoff away from improvements, enclosures, concrete pads, and new aggregate roads to eliminate ponding, and prevent erosion.

In the absence of Host Nation standards, design the storm drainage system per UFC 3-201-01, Civil Engineering Chapter 3-Storm Drainage Systems.

Connect building downspouts to splash blocks that drain away from foundations a minimum of 2 meters. Provide drainage for new aggregate roads to ensure stormwater is not routed to any improvements.

2.12.2 SANITARY SYSTEM

A sanitary sewer system is not proposed.

2.12.3 WATER SYSTEM

Design water system to meet the potable water regulations and requirements of the local government agencies or equivalent in the host nation. Use UFC 3-230-01 in the absence of host nation standards.

For the piping distribution system and appurtenances, provide materials, equipment, components, manufactured units and appurtenances of the potable water system in accordance with Unified Facilities Guide Specifications and NSF 61 or equivalent host nation standard. Any part of the water piping system such as, valves, joining materials, gaskets, or appurtenances that come in contact or has the potential to come in contact with potable water is considered part of the potable water system.

Select materials and use of coatings to preserve high hydraulic efficiency to control tuberculation, slime formation and encrustations. During material and coating selection evaluate control potential, structural strength, field conditions, cost and maintenance requirements.

[Option 1] Provide a water system to connect the proposed water tanks to the proposed river water collection system. Provide a stilling basin or similar structure to route and collect water from the river to an area that will provide the depth and flow restriction to allow natural turbidity to settle before the water is pumped to be treated. Design the system to meet all flow requirements of the tank system. The pump for the stilling basin must be powered by the nearby substation, and must have sufficient performance to fill the water storage tanks in the amount of time required for proper operation of the water supply system.

Provide a locked access to the pump with 2 sets of keys.

[Option 2] Provide a water system to connect the proposed water tanks to the proposed well. Design the system to meet all flow requirements of the tank system.

Assume a well depth of 150m for bidding purposes. The well pump must be powered by the nearby substation, and must have sufficient performance to fill the water storage tanks in the amount of time required for proper operation of the water supply system. Provide a locked access to the pump with 2 sets of keys. Provide a manual pump option to the well if the electric pump fails. New wells must be located a minimum of 50 m from all septic systems and pit latrines.

Water Storage Structures. Use materials for water storage that protect the quality of the stored water. Select materials in accordance with Unified Facilities Guide Specifications and NSF 61 or equivalent host nation standard. Tanks must be designed, fabricated and constructed for drinking water use. The water tanks and piping must be UV resistant and include appropriate features (i.e. shading, insulation) to ensure water temperatures stay at an acceptable level for use, 15-Apr-26 Page 17 of 48 including freeze protection. The water tank must have the ability to be filled by the pump system and include an access ladder and man-way for interior access for cleaning. The location of the fill connection must be convenient and labeled. The fill point and cleaning access must be secured and locked. The water tanks should be isolatable, allowing maintenance to one tank without causing disruptions in the whole system.

Provide materials, equipment, components, manufactured units, and appurtenances necessary to provide chlorinated disinfection, including chlorine residual, meeting Host Nation Standards for potable (drinking) water. In the absence of Host Nation regulations, an approved international equivalent shall be used. All piping and associated system materials shall comply with the relevant EN (European Norm) standards. Where a direct EN standard is not applicable, the relevant host nation, or other local standard shall apply. All materials must be accompanied by a Certificate of Conformity. The Contractor shall provide all necessary certificates of conformity. Storage of chemical solutions must be secure (i.e. UV resistant/protected, labelled, temperature controlled or removed from exposure to extreme temperatures, placed in adequately sized secondary containment, etc) as quantified in host nation and local standards.

[Option 2] In the absence of Host Nation standards, design the well system per ANSI/AWWA A100-06, Water Wells, NTRP 4-04.2.13/FM 3-34.469/AFMAN 32-1072, Water- Well Drilling Operations, and the IBC.

After installation, test water supply lines according to local codes for leakage.

Before the water supply line is put into final operation, disinfect the line, and then flush the line to remove traces of the sterilization agent. Test treated line for coliform bacteria and for the presence of any regulated chlorine residuals.

Provide test results to the KO. Locate and repair any sections failing to pass the required tests. Repeat the specified tests and inspections on the repaired sections.

See SOW Section 6.0 – MECHANICAL for pump, water tank, and well scope of work.

2.13 PAVEMENT

Provide site access to allow operational and maintenance access to the facility.

Provide geometric layout of the paved areas to allow for the design vehicles to access the site features and exit the site safely.