Background and Rationale

Sinjar District in Ninewa Governorate continues to face severe and prolonged challenges in accessing reliable and safe drinking water. These challenges stem from conflict related destruction of infrastructure, prolonged droughts, climate variability, population displacement and return, and historic underinvestment in groundwater assessment and water supply systems.

In rural and peri urban areas of Sinjar, groundwater extracted from deep boreholes constitutes the primary and often sole source of potable water. Surface water sources are limited, seasonal, and technically unsuitable for reliable domestic supply. However, groundwater development in the district has historically been undertaken with limited hydrogeological investigation, resulting in poorly sited boreholes, over-abstraction, declining groundwater levels, increased salinity, and frequent mechanical failures.

Field observations, consultations with the Local Government of Ninewa, and lessons learned from previous UNOPS and donor-funded interventions indicate that a significant number of existing boreholes are under-performing or non-functional. Consequently, many communities rely on water trucking to meet basic needs. Water trucking is costly, unreliable, environmentally unsustainable, and places a disproportionate burden on vulnerable groups, particularly women, female-headed households, returnees, and low-income families. The lack of reliable water supply negatively affects public health, social stability, livelihoods recovery, and long-term resilience.

Through the ELISS Project funded by KfW, UNOPS aims to support the development of sustainable, climate-resilient, and institutionally manageable water supply systems in Sinjar. Experience from comparable projects has demonstrated that proceeding directly to infrastructure design and construction without robust confirmation of groundwater feasibility exposes projects to significant technical, financial, and fiduciary risks.

Accordingly, this assignment adopts a phased, evidence-based approach:

• Stage One focuses on comprehensive hydrogeological investigations and exploratory borehole drilling to objectively confirm groundwater availability, quality, and sustainability.
• Stage Two focuses on the detailed engineering design of water treatment plants and associated infrastructure and shall be undertaken only for locations where groundwater feasibility has been conclusively demonstrated and formally approved by UNOPS through its Infrastructure and Project Management Group (IPMG).

This approach ensures value for money, minimizes implementation risk, aligns with UNOPS design governance requirements, complies with KfW environmental and social principles, and supports the strategic priorities of the Local Government of Ninewa.

2. Objectives

2.1 Overall Objective

To support UNOPS and the Local Government of Ninewa in the development of technically sound, environmentally sustainable, climate-resilient, and operationally viable water supply systems in Sinjar District through a phased process that links groundwater feasibility confirmation with high-quality, procurement-ready engineering design.

2.2 Specific Objectives – Stage One (Groundwater Feasibility)

The specific objectives of Stage One are to:

• Conduct detailed hydrogeological, hydrological, and geophysical investigations at six (6) target locations.
• Confirm the presence, depth, thickness, lateral extent, and hydraulic properties of productive aquifers.
• Quantify groundwater availability through determination of sustainable yield, transmissivity, storativity, drawdown behavior, recovery characteristics, and recharge potential.
• Assess groundwater quality against Iraqi Quality Standards (IQS) and WHO Drinking Water Guidelines and identify implications for treatment.
• Identify hydrogeological, environmental, and operational risks, including salinity intrusion, excessive drawdown, aquifer depletion, and long-term sustainability constraints.
• Provide a clear, objective, and auditable feasibility classification (Feasible / Conditionally Feasible / Not Feasible) for each location to inform UNOPS investment decisions.

2.3 Specific Objectives – Stage Two (Water Treatment Plant Design)

Subject to formal UNOPS approval of Stage One outcomes, the specific objectives of Stage Two are to:

• Prepare complete, coordinated, and procurement ready engineering designs for six (6) water treatment plants, one per approved location.
• Translate confirmed raw water quantity and quality characteristics into appropriate, cost-effective, and operable treatment process solutions.
• Integrate abstraction works, treatment processes, storage facilities, energy systems, and defined water distribution points into a coherent, hydraulically balanced system.
• Ensure full compliance with UNOPS technical standards, IPMG design governance procedures, applicable Iraqi regulations, and donor (KfW) requirements.
• Optimize lifecycle costs by balancing capital expenditure, operational simplicity, maintenance requirements, energy efficiency, and local institutional capacity.

2.4 Institutional, Gender, and Sustainability Objectives

Across both stages, the assignment also aims to:

• Strengthen coordination, ownership, and decision making capacity of the Local Government of Ninewa, which shall act as the primary institutional focal point.
• Ensure compatibility of proposed systems with local operation and maintenance capacities.
• Integrate gender responsive considerations into socio-economic analysis, water demand assessment, and service delivery design.
• Reduce long-term reliance on emergency water trucking and contribute to improved public health, social stability, and community resilience.

3. Structure of the Assignment

The assignment is structured as a two-stage, sequential, and conditional engagement, designed to manage technical, financial, and fiduciary risks associated with groundwater development and water supply infrastructure in Sinjar District.

The two contractual stages are defined as follows:

• Stage One: Groundwater feasibility investigations and exploratory borehole drilling at six (6) target locations, including all associated hydrogeological studies, geophysical investigations, exploratory drilling, pumping tests, water quality analysis, and feasibility assessment.
• Stage Two: Detailed engineering design of six (6) water treatment plants and associated infrastructure, to be undertaken only for locations that are confirmed as technically feasible based on the outcomes of Stage One.

Progression from Stage One to Stage Two shall occur strictly upon written authorization from UNOPS, following the satisfactory completion, submission, and formal approval of all Stage One deliverables. Such authorization shall be issued solely at the discretion of UNOPS, based on technical review findings and recommendations, including review by the UNOPS IPMG, where applicable.

Completion of Stage One shall not constitute an automatic entitlement for the Consultant to proceed to Stage Two. UNOPS reserves the right to approve Stage Two for all, some, or none of the initially identified locations, depending on groundwater feasibility outcomes, sustainability considerations, water quality, and cost-effectiveness.

Identification of Alternative Locations:

In the event that one or more of the initially identified locations are classified as Not Feasible, or are deemed technically unsuitable for sustainable groundwater abstraction, the Consultant shall, as part of Stage One and within the approved contract scope:

• Proactively identify and propose alternative locations within the same communities or surrounding service areas where groundwater availability is likely to be technically feasible. The consultant is to write to UNOPS in case the alternative location was not found feasible ;
• Apply appropriate hydrogeological reasoning, field reconnaissance, and geophysical investigations to justify the proposed alternative locations;
• Present the proposed alternative locations to UNOPS for review and written approval prior to any exploratory drilling.

Exploratory investigations and drilling at any alternative locations shall be undertaken only after written approval from UNOPS. Approval of alternative locations does not guarantee progression to Stage Two and shall remain subject to the same feasibility assessment and decision gates as the originally identified locations.

Risk Allocation and Claims

Locations classified as Not Feasible, whether originally identified or proposed as alternatives, shall be excluded from Stage Two without any financial, contractual, or time-related entitlement for the Consultant.

No claims for additional payment, variation, compensation, or time extension shall arise from:

• The exclusion of any location from Stage Two;
• The failure of exploratory boreholes to yield adequate quantity or acceptable quality of groundwater;
• The requirement to identify alternative locations;
• UNOPS decision not to proceed with Stage Two for any or all locations.

All risks related to groundwater non-existence, inadequate yield, unsuitable water quality, or unsuccessful exploratory drilling are deemed to be fully allocated to Stage One and are inherent to the nature of groundwater feasibility investigations.

Stage Two, when authorized, shall be governed by UNOPS design governance procedures, including mandatory technical review and approval by UNOPS IPMG at defined design stages. Only designs formally approved by UNOPS shall be considered valid for procurement and subsequent implementation.

4. Stage One – Scope of Work (Groundwater Feasibility)

4.1 Desktop Study and Data Review

The Consultant shall review all available geological, hydrogeological, hydrological, climatic, and borehole data relevant to the study area, including historical borehole logs, pumping test records, rainfall data, satellite imagery, and previous studies. Preliminary conceptual hydrogeological models shall be developed for each location.

4.2 Hydrogeological and Hydrological Assessment

Field investigations shall be conducted to characterize aquifer systems, recharge mechanisms, groundwater flow directions, seasonal variability, and sustainable abstraction limits. Both short term productivity and long term sustainability shall be assessed.

4.3 Socio-Economic and Water Demand Assessment

A comprehensive socio-economic and water demand assessment shall be undertaken for each target location to inform groundwater feasibility conclusions and subsequent system design. The assessment shall be evidence based, clearly documented, and aligned with UNOPS, donor, and national planning requirements.

The assessment shall include, at a minimum, the following elements:

• Collection and analysis of demographic data disaggregated by gender and age, including total population, number of households, women, men, girls, and boys.
• Identification and characterization of vulnerable groups, including but not limited to female-headed households, returnees, IDPs, elderly persons, and persons with disabilities, and assessment of their specific water access challenges.
• Assessment of returnee dynamics, including current rates of return, expected future return trends, and their implications for population growth, spatial expansion of settlements, and water demand over the design horizon.
• Review of existing water supply arrangements, including sources, service levels, reliability, water quality perceptions, affordability, and dependence on coping mechanisms such as water trucking or private vendors.
• Analysis of gender-differentiated water use patterns, roles, and responsibilities related to water collection, storage, household use, and management, and the time and social burden associated with inadequate water services.
• Estimation of current water demand for domestic and institutional uses based on recognized per capita consumption benchmarks, adjusted to local context and service levels.
• Projection of future water demand using a minimum 10-year design horizon, taking into account population growth, anticipated return of displaced populations, planned settlement expansion, and potential changes in service coverage.
• Consideration of future expansion scenarios, including phased increases in population, extension of distribution networks, and potential connection of additional users or institutions, and their implications for system sizing and scalability.
• Documentation of all assumptions, data sources, growth rates, and demand factors used in the analysis.

The findings of the socio-economic and water demand assessment shall be validated in coordination with UNOPS and the Local Government of Ninewa and shall directly inform groundwater abstraction rates, treatment plant capacity, storage sizing, and distribution system design.

4.4 Geophysical Investigations

The Consultant shall undertake comprehensive geophysical investigations at each target location to support groundwater feasibility assessment and to guide the selection of optimal exploratory borehole drilling points.

Vertical Electrical Sounding (VES) and/or Electrical Resistivity Tomography (ERT) surveys shall be conducted using appropriate, calibrated equipment and methodologies suitable for the local geological and hydrogeological context. The selection of geophysical methods shall be justified by the Consultant based on expected subsurface conditions, depth of investigation required, and resolution needs.

The geophysical investigations shall include, at a minimum, the following:

• Design and execution of geophysical survey layouts covering the proposed sites and surrounding areas, ensuring sufficient spatial coverage to characterize subsurface variability.
• Acquisition of resistivity data to delineate subsurface stratigraphy, identify lithological units, detect potential aquifer zones, and distinguish between saturated and unsaturated layers.
• Identification of structural features such as faults, fractures, or weathered zones that may influence groundwater occurrence, productivity, and flow.
• Estimation of depth to bedrock, thickness of water-bearing formations, and lateral continuity of potential aquifers.
• Integration of geophysical findings with available geological, hydrogeological, and hydrological data to refine conceptual hydrogeological models for each location.

Based on the interpretation of geophysical data, the Consultant shall propose a minimum of three (3) technically justified drilling points per location. Each proposed drilling point shall be supported by:

• Clear geophysical justification, including resistivity profiles, interpreted cross-sections, and indicative depth ranges.
• Expected lithological sequence and anticipated aquifer zones.
• Preliminary assessment of potential groundwater yield and drilling risk.
• Geographic coordinates and site accessibility considerations.

All proposed drilling locations shall be submitted to UNOPS for review and written approval prior to commencement of exploratory drilling. No drilling activities shall be undertaken without such approval.

The Consultant shall document all survey methodologies, data acquisition parameters, processing techniques, interpretations, limitations, and assumptions in a dedicated Geophysical Investigation Report for each location. Raw data, processed results, maps, profiles, and interpretative figures shall be included as annexes.

4.5 Exploratory Borehole Drilling

The Consultant shall supervise and technically control all exploratory borehole drilling activities at the approved locations in order to confirm groundwater availability, productivity, and suitability for long-term abstraction.

Exploratory borehole drilling shall be carried out to a depth of 250 meters, or to a lesser depth where aquifer conditions are confirmed earlier, as directed by UNOPS based on geophysical interpretation and field conditions.

The scope of exploratory drilling shall include, but not be limited to, the following activities:

• Supervision of drilling operations to ensure the use of appropriate drilling methods (e.g. rotary, down-the-hole hammer, mud or air drilling) suitable for local geological conditions.
• Continuous lithological logging throughout drilling, including detailed description of soil and rock types, grain size, color, degree of weathering, fracturing, and any water-bearing horizons encountered.
• Recording of drilling parameters, including penetration rates, drilling fluid characteristics, losses, returns, and any drilling difficulties encountered.
• Identification and documentation of water strikes, including depth, estimated yield, and water quality observations.
• Supervision of borehole development activities (e.g. surging, airlifting, pumping) to remove drilling fines, stabilize the formation, and improve well efficiency until turbidity and discharge parameters stabilize.
• Temporary or permanent well completion, as directed by UNOPS, to allow for pumping tests and water quality sampling.

In the event that an exploratory borehole fails to encounter groundwater of adequate quantity or quality, or is otherwise deemed technically unsuccessful, the Consultant shall immediately assess the causes of failure and propose an alternative drilling location based on updated hydrogeological and geophysical interpretation. Any alternative drilling location shall be subject to prior written approval by UNOPS before drilling proceeds.

All exploratory drilling works shall be carried out in full compliance with UNOPS Health, Safety, Social and Environmental (HSSE) requirements, including safe site setup, protection of personnel and communities, proper handling and disposal of drilling fluids and cuttings, and prevention of contamination of aquifers.

The Consultant shall ensure that comprehensive records are maintained for each exploratory borehole, including drilling logs, lithological logs, construction details, and development records.

4.6 Pumping Tests and Water Quality Analysis

The Consultant shall design, supervise, and analyze pumping tests and groundwater quality sampling for each successful exploratory borehole in order to assess aquifer performance, sustainable abstraction rates, and water suitability for intended uses.

Pumping Tests

Pumping tests shall be conducted in accordance with internationally recognized groundwater investigation practices and applicable Iraqi regulations, and shall include, at a minimum, the following:

• Step drawdown pumping tests to assess well efficiency, determine optimal pumping rates, and identify well losses. Each step shall be of sufficient duration to achieve quasi steady drawdown conditions, with discharge rates progressively increased.
• Constant-rate pumping tests to evaluate aquifer characteristics, including transmissivity, storativity, specific capacity, and long-term yield. Constant-rate tests shall be conducted for a minimum duration of 10 to 16 hours, or longer if required by UNOPS based on observed drawdown behavior.
• Continuous monitoring and recording of water levels during pumping and recovery phases using calibrated water level loggers and manual measurements for verification.
• Measurement and recording of pumping discharge rates using appropriate flow-measuring devices.
• Observation and documentation of any impacts on nearby wells or water points, where applicable.

Following pumping, recovery monitoring shall continue until water levels return to near static conditions or stabilize, as determined by the Consultant and UNOPS.

The Consultant shall analyze pumping test data using appropriate analytical methods and software to determine aquifer parameters and to estimate sustainable abstraction rates suitable for long-term operation of water supply systems.

Water Quality Analysis

Groundwater samples shall be collected from each successfully tested borehole in accordance with standard sampling protocols to ensure representative and uncontaminated samples. Sampling shall be undertaken after sufficient pumping to ensure that stagnant water is purged from the borehole.

Water quality analysis shall be performed by accredited laboratories and shall include, at a minimum:

• Physical parameters (e.g. temperature, turbidity, color).
• Chemical parameters relevant to drinking water standards (e.g. pH, electrical conductivity, total dissolved solids, major ions).
• Specific parameters of concern for groundwater in the region, such as iron, manganese, nitrates, and salinity indicators.
• Bacteriological analysis (e.g. total coliforms and E. coli), where applicable.

All results shall be assessed against Iraqi Quality Standards (IQS) and WHO Drinking Water Guidelines to determine suitability for domestic use and to identify required treatment processes.

Reporting and Outputs

The Consultant shall prepare a comprehensive Pumping Test and Water Quality Analysis Report for each borehole, which shall include:

• Description of test methodologies and equipment used.
• Pumping schedules, discharge rates, drawdown and recovery curves.
• Calculated aquifer parameters and interpretation of results.
• Assessment of well performance and sustainable yield.
• Laboratory water quality results with comparison to applicable standards.
• Clear conclusions on groundwater suitability and implications for water treatment plant design.

4.7 Feasibility Classification

Based on the results of all investigations conducted under Stage One—including desktop studies, hydrogeological and hydrological assessments, socio-economic and water demand analysis, geophysical investigations, exploratory borehole drilling, pumping tests, and water quality analysis, the Consultant shall assign a formal feasibility classification to each investigated location.

The feasibility classification shall be evidence based, clearly justified, and supported by quantitative and qualitative data. The classification shall inform UNOPS’ decision on whether to proceed with Stage Two (Water Treatment Plant Design) for each location.

Each location shall be classified under one of the following categories:

a) Feasible

A location shall be classified as Feasible where all of the following conditions are met:

• Groundwater is confirmed to exist at technically accessible depths.
• Pumping test results demonstrate that the aquifer can sustainably yield sufficient quantity to meet current and projected water demand over the defined design horizon.
• Water quality parameters are within acceptable limits or can be treated using technically proven, cost-effective, and locally operable treatment processes.
• No critical hydrogeological, environmental, or operational risks are identified that would compromise long term system sustainability.
• The location is technically suitable for the construction and operation of abstraction works and associated infrastructure.

Locations classified as Feasible shall be recommended for progression to Stage Two, subject to written approval by UNOPS.

b) Conditionally Feasible

A location shall be classified as Conditionally Feasible where groundwater is present, but one or more constraints or risks have been identified that require mitigation, modification, or further consideration, including but not limited to:

• Marginal groundwater yield that may require demand management, phased development, or reduced service coverage.
• Water quality issues that necessitate more complex or higher cost treatment solutions than required for Feasible sites.
• Identified risks related to seasonal variability, recharge uncertainty, or long-term sustainability.
• Technical or site constraints requiring design adaptations or additional protective measures.

For locations classified as Conditionally Feasible, the Consultant shall clearly define:

• The specific constraints and risks identified;
• Required mitigation measures or design adaptations;
• Any limitations on system capacity, service coverage, or operational conditions.

Progression to Stage Two for Conditionally Feasible locations shall be subject to explicit written approval by UNOPS, and may include additional conditions, scope limitations, or design requirements.

c) Not Feasible

A location shall be classified as Not Feasible where one or more of the following conditions apply:

• Groundwater is not encountered at technically or economically viable depths.
• Pumping test results indicate insufficient yield or unacceptable drawdown behavior for sustainable abstraction.
• Water quality is unsuitable for potable use and cannot be feasibly treated using reasonable and locally manageable technologies.
• Hydrogeological conditions present unacceptable long term sustainability risks.
• Technical, environmental, or site constraints render the location unsuitable for water supply development.

For any location classified as Not Feasible, the Consultant shall, as part of Stage One and within the approved contract scope:

• Proactively identify and assess alternative nearby locations within the same community or service catchment area where groundwater availability is more likely to be feasible;
• Apply hydrogeological reasoning, field reconnaissance, and geophysical investigations to justify the proposed alternative locations;
• Submit the proposed alternative locations to UNOPS for review and written approval prior to any exploratory drilling.

Exploratory investigations and drilling at alternative locations shall be undertaken only after written approval by UNOPS and shall be subject to the same feasibility assessment and classification process described above.

Locations classified as Not Feasible, including any approved alternative locations that also fail to meet feasibility criteria, shall be excluded from Stage Two without any entitlement to compensation, variation, or time extension.

Documentation and Approval

For each original and any approved alternative location, the Consultant shall prepare a Feasibility Classification Note summarizing:

• Investigation results and key findings;
• Applied classification criteria;
• Assigned feasibility category;
• Clear technical justification and recommendations.

All Feasibility Classification Notes shall be consolidated into a Stage One Feasibility Summary Report and submitted to UNOPS for review and formal approval. Only locations formally approved by UNOPS as Feasible or approved Conditionally Feasible shall be eligible to proceed to Stage Two.

5. Stage Two – Water Treatment Plant Design (Conditional)

5.1 Design Brief Report (DBR)

The Consultant shall prepare a comprehensive Design Brief Report (DBR) for each location approved to proceed to Stage Two. The DBR shall constitute the foundational technical document upon which all subsequent design activities shall be based and shall be prepared in close coordination with UNOPS.

The DBR shall define, document, and justify all key technical, operational, and planning assumptions used in the design of the water treatment plants and associated infrastructure. No detailed design activities shall commence prior to the review and written approval of the DBR by UNOPS and UNOPS IPMG.

The Design Basis Report shall include, at a minimum, the following components:

a) Design Criteria and Planning Parameters

• Design horizon of minimum 10 years, with justification of population growth and service expansion assumptions.
• Target service levels, including per capita water consumption rates, hours of service, and reliability criteria.
• Definition of average, peak, and maximum demand scenarios.
• Design allowances for future expansion and phased development, where applicable.

b) Raw Water Source Characteristics

• Summary of groundwater source characteristics based on Stage One investigations, including abstraction limits, seasonal variability, and sustainable yield.
• Summary of raw water quality parameters and variability.
• Identification of any constraints or risks associated with the raw water source.

c) Treatment Objectives and Performance Requirements

• Definition of treated water quality targets in accordance with Iraqi Quality Standards (IQS) and WHO Drinking Water Guidelines.
• Identification of required treatment processes to achieve compliance with applicable standards.
• Definition of operational performance criteria, including process efficiency, robustness, and resilience.

d) Redundancy and Reliability Philosophy

• Definition of redundancy requirements for critical components, including pumps, power supply, treatment units, and control systems.
• Criteria for system reliability under normal operation, peak demand, and emergency conditions.

e) Applicable Standards and Design Codes

• List of applicable Iraqi regulations and standards.
• UNOPS technical guidelines and design requirements.
• International standards and codes adopted by UNOPS, where applicable.
• Hierarchy of standards in case of discrepancies.

f) Design Assumptions and Constraints

• Explicit listing of all design assumptions related to site conditions, land availability, access, utilities, and environmental constraints.
• Identification of known limitations or uncertainties affecting the design.
• Assumptions related to operation and maintenance capacity.

g) Risk Identification and Mitigation Measures

• Identification of key technical, environmental, operational, and institutional risks.
• Proposed mitigation measures to be addressed through design, construction, or operational controls.

h) Interfaces and Integration

• Definition of interfaces between abstraction works, treatment facilities, storage, distribution networks, and energy systems.
• Confirmation of compatibility with existing infrastructure where applicable.
• The DBR shall be structured clearly, supported by tables, diagrams, and calculations as necessary, and shall explicitly reference relevant findings from Stage One.

I) Technical Calculations

The Consultant shall provide all relevant technical calculations supporting the proposed design, including but not limited to:

• Water demand calculations and demand projections.
• Hydraulic calculations for abstraction, treatment processes, storage sizing, and distribution networks.
• Pump sizing, head loss calculations, and energy demand assessments.
• Treatment process design calculations (e.g. filtration rates, detention times, dosing requirements).
• Structural design loads and calculations, including seismic loading where applicable.
• Electrical load calculations and renewable energy system sizing, where applicable.
• All calculations shall be clearly presented, properly referenced, and based on accepted engineering principles and applicable standards.
• Calculation methodologies, assumptions, and design parameters shall be explicitly stated and traceable.

The Consultant shall submit the DBR to UNOPS for formal technical review and approval. Any comments issued by UNOPS or UNOPS IPMG shall be addressed and incorporated by the Consultant prior to progression to subsequent design stages. The approved DBR shall serve as the binding technical reference for the 30%, 60%, 90%, and Issued  for Construction design submissions.

5.2 Treatment Process Selection

The Consultant shall select, evaluate, and justify the most appropriate water treatment processes for each approved location based on the characteristics of the raw water source, operational requirements, lifecycle considerations, and local institutional capacity.

Treatment process selection shall be evidence-based and shall be directly informed by the outcomes of Stage One investigations, including groundwater quantity, quality, variability, and sustainability. The Consultant shall demonstrate that the proposed treatment solutions are technically feasible, operationally robust, cost-effective over the asset lifecycle, and suitable for long-term operation under local conditions in Sinjar District.

The treatment process selection shall include, at a minimum, the following considerations:

a) Raw Water Quality and Variability

• Detailed assessment of raw water quality parameters, including physical, chemical, and bacteriological characteristics.
• Consideration of seasonal and long-term variability in raw water quality and its implications for treatment performance.
• Identification of specific contaminants of concern (e.g. turbidity, salinity, iron, manganese, nitrates, bacteriological contamination) and required removal efficiencies.

b) Treatment Objectives and Compliance

• Definition of treated water quality targets in accordance with Iraqi Quality Standards (IQS) and WHO Drinking Water Guidelines.
• Demonstration that the selected treatment processes can reliably achieve compliance under all anticipated operating conditions.

c) Technical Robustness and Reliability

• Selection of proven treatment technologies with demonstrated performance in similar hydrogeological and climatic contexts.
• Assessment of process robustness under variable flow rates, water quality fluctuations, and power supply conditions.
• Incorporation of redundancy, bypass arrangements, and operational flexibility where required.

d) Lifecycle Cost and Sustainability

• Evaluation of capital costs, operating and maintenance costs, energy consumption, chemical consumption, and replacement requirements over the design life.
• Comparison of alternative treatment options using a lifecycle cost approach.
• Consideration of long-term financial sustainability and affordability for local operators.

e) Operation and Maintenance Capacity

• Assessment of local operation and maintenance capacity, including availability of trained staff, spare parts, chemicals, and technical support.
• Preference for treatment processes that are simple to operate, maintain, and troubleshoot under local conditions.
• Identification of any specialized training or capacity-building requirements associated with the selected processes.

f) Availability of Materials and Spare Parts

• Verification that critical equipment, consumables, chemicals, and spare parts are locally or regionally available, or can be reliably procured.
• Avoidance of systems or technologies that may create long term dependency risks.

g) Environmental and HSSE Considerations

• Assessment of environmental impacts associated with treatment processes, including waste streams, backwash water, sludge handling, and chemical storage.
• Incorporation of measures to ensure safe handling of chemicals and protection of operators, communities, and the environment, in line with UNOPS HSSE requirements.

h) Comparative Analysis and Justification

• Presentation of a comparative analysis of feasible treatment alternatives, clearly outlining advantages, disadvantages, risks, and cost implications.
• Clear justification for the selected treatment process(es) for each location, supported by technical calculations and references to applicable standards.

The selected treatment processes and their justification shall be documented in the Design Brief Report (DBR) and shall form the basis for subsequent detailed process design, equipment sizing, layout development, and cost estimation.

5.3 Hydraulic Design, Surveys, and Network Integration

The Consultant shall undertake comprehensive hydraulic design supported by accurate field surveys and systematic assessment of existing infrastructure to ensure that the proposed water supply systems are technically sound, hydraulically balanced, and suitable for phased expansion and long-term operation.

All hydraulic analyses and design decisions shall be based on verified field data, approved design assumptions, and the findings of Stage One investigations. No assumed or estimated values shall be used where field verification is reasonably achievable.

5.3.1 Topographic and Elevation Surveys

The Consultant shall conduct detailed topographic and elevation surveys at each approved location to support accurate hydraulic and civil design. Surveys shall cover, at a minimum, the following components:

• Exploratory and production boreholes;
• Water treatment plant (WTP) sites;
• Storage facilities (ground reservoirs, elevated tanks, break-pressure tanks);
• Proposed and existing water distribution points;
• Key pipeline alignments and interface points with existing networks.

The surveys shall:

• Establish horizontal and vertical control points referenced to an accepted local or national datum.
• Determine existing ground levels, slopes, and site boundaries.
• Identify critical elevation differences affecting gravity flow, pump head requirements, pressure management, and flood risk.
• Capture relevant physical features, including access roads, existing utilities, structures, drainage paths, and natural obstacles.

Survey data shall be of sufficient accuracy to support:

• Hydraulic gradient calculations;
• Pump sizing and head loss calculations;
• Storage sizing and overflow levels;
• Flood risk and drainage design.

Survey outputs shall be submitted in tabulated format, drawings, and CAD-compatible files and shall be subject to review and approval by UNOPS and UNOPS IPMG. Survey data shall form the sole basis for all elevation-dependent hydraulic calculations.

5.3.2 Water Distribution Points

The Consultant shall identify, verify, survey, and integrate water distribution points into the overall system design to ensure reliable, equitable, and safe water distribution to beneficiary communities.

This task shall include, at a minimum:

• Identification and confirmation of proposed distribution points, such as public stand posts, reservoirs, break-pressure tanks, network connection points, or other agreed delivery points, in coordination with UNOPS and the Local Government of Ninewa.
• Verification of the number and spatial distribution of distribution points based on population distribution, settlement layout, gender considerations, vulnerable groups, and projected water demand.
• Survey of elevations and coordinates of all proposed distribution points to ensure accurate hydraulic connectivity with abstraction, treatment, and storage facilities.
• Definition of hydraulic requirements at each distribution point, including minimum and maximum pressure, required flow rates, operating hours, and service continuity.
• Assessment of user safety, accessibility, and operational considerations at distribution points, including drainage and protection measures.

The Consultant shall ensure that the design of abstraction works, treatment plants, storage facilities, and pumping systems is fully compatible with the identified distribution points. Distribution points and their interfaces shall be clearly shown on hydraulic schematics, layout drawings, and reflected in hydraulic calculations, BOQs, and cost estimates.

5.3.3 Assessment of Existing Networks and Storage Facilities

Where existing water distribution networks, transmission pipelines, storage tanks, or related infrastructure are present within or near the target locations, the Consultant shall carry out a comprehensive technical assessment to determine their suitability for integration into the proposed system.

The assessment shall include, at a minimum:

• Identification and mapping of existing pipelines, storage tanks, reservoirs, break-pressure tanks, valves, and associated appurtenances.
• Review of available as-built drawings, records, and operational data, where available.
• Site inspections to assess the structural integrity, hydraulic capacity, leakage condition, material suitability, and operational status of existing assets.
• Assessment of storage tank capacity, condition, elevation, overflow arrangements, and suitability for continued use or rehabilitation.
• Evaluation of compatibility of existing networks and storage facilities with the proposed system in terms of capacity, pressure regimes, water quality, and operational control.
• Identification of rehabilitation, upgrading, replacement, or decommissioning requirements, with justification.

The findings of the assessment shall directly inform hydraulic design decisions, including whether existing assets can be integrated, require rehabilitation, or should be replaced. All assumptions, limitations, and recommendations shall be clearly documented and reflected in the design drawings, BOQs, and cost estimates.

Reporting and Outputs

The Consultant shall document all hydraulic analyses, survey results, and infrastructure assessments in the design documentation, including:

• Survey reports and drawings;
• Hydraulic calculation sheets and profiles;
• Network schematics and layout drawings;
• Technical assessment notes for existing infrastructure.

All outputs shall be submitted to UNOPS and UNOPS IPMG for review and approval and shall form part of the binding design documentation.

5.4 Civil, Structural, and Architectural Design

The Consultant shall prepare comprehensive civil, structural, and architectural designs for all water treatment plant facilities and associated infrastructure, ensuring structural safety, operational efficiency, durability, and compliance with applicable standards.

All civil, structural, and architectural designs shall be based on site-specific geotechnical conditions identified during Stage One and any additional investigations required during Stage Two. Structural design shall explicitly account for seismic loading, in accordance with applicable Iraqi seismic zoning, national regulations, UNOPS adopted international codes and shall fully comply with the UNOPS Design Planning Manual for Buildings.

The scope of work shall include, at a minimum:

• Design of foundations, tanks, buildings, slabs, and ancillary structures considering soil bearing capacity, settlement, groundwater conditions, uplift forces, and constructability.
• Structural analysis and design of critical components such as ground reservoirs, elevated tanks, pump houses, filter units, and equipment supports, including all relevant load combinations (dead, live, operational, wind, and seismic).
• Incorporation of climate resilient design measures, including flood protection, thermal considerations, corrosion protection, and durability measures.
• Architectural layouts ensure safe access, adequate working space, ventilation, lighting, and compliance with occupational safety requirements for operation and maintenance personnel.
• Design of access roads, drainage systems, fencing, and security provisions as required.
• Preparation of a detailed village layout plan illustrating the overall water supply system configuration, including the alignment and routing of transmission pipelines connecting the source village to the beneficiary village(s).
• Identification and mapping of the locations of water treatment facilities, ground and/or elevated storage tanks, pumping stations, and water distribution points within the village(s), ensuring hydraulic efficiency, accessibility, safety, and future expansion potential.
• Coordination of the village layout and pipeline routing with existing infrastructure, land ownership constraints, right-of-way considerations, environmental and social safeguards, and constructability requirements.

All civil, structural, and architectural designs shall be fully supported by detailed technical calculations, including geotechnical checks, load calculations, seismic analysis, stability checks, and structural sizing. All calculations, assumptions, parameters, and design methodologies shall be clearly documented and submitted as part of the design deliverables for UNOPS IPMG review and approval. When using analysis and design software, the consultant should provide all the assumptions and details necessary for the model to be checked.

5.5 Mechanical, Electrical, and Instrumentation & Control (I&C) Design

The Consultant shall prepare detailed mechanical, electrical, and instrumentation & control (I&C) designs to ensure reliable, safe, and efficient operation of the water supply systems, fully aligned with the UNOPS Design Planning Manual for Buildings and UNOPS technical requirements.

Mechanical Design

• Selection and sizing of pumps, treatment equipment, valves, pipework, fittings, and ancillary mechanical components.
• Preparation of piping and instrumentation diagrams (P&IDs), mechanical layouts, and equipment schedules.
• Specification of materials suitable for raw and treated water quality, operating pressures, and local environmental conditions.
• Incorporation of isolation, bypass, flushing, and maintenance provisions.

Electrical Design

• Design of electrical power distribution systems, including main panels, motor control centers, cabling, earthing, and lightning protection.
• Electrical load calculations, short-circuit analysis, and power demand assessment.
• Compliance with electrical safety standards, Iraqi regulations, and UNOPS requirements.

Instrumentation and Control

• Specification and sizing of instrumentation for flow, pressure, level, and water quality monitoring.
• Design of control systems suitable for simple, reliable, and locally operable control.
• Provision of alarms, protections, interlocks, and manual override capabilities.

All mechanical, electrical, and I&C designs shall be supported by complete technical calculations, including hydraulic calculations, pump duty point calculations, head loss analysis, power and energy calculations, control logic descriptions, and equipment sizing calculations.

5.6 Renewable Energy Integration

Where technically and economically feasible, the Consultant shall assess and design renewable energy systems, including solar photovoltaic (PV) or hybrid solutions, in accordance with UNOPS sustainability principles and the UNOPS Design Planning Manual for Buildings.

This task shall include:

• Assessment of system energy demand based on hydraulic, mechanical, and process design calculations.
• Evaluation of solar resource availability, site constraints, and shading conditions.
• Sizing and layout of solar PV arrays, inverters, storage systems (if applicable), and hybrid configurations.
• Integration of renewable energy systems with electrical and control designs.
• Evaluation of lifecycle costs, operational savings, and maintenance implications.

All renewable energy designs shall be fully supported by technical calculations, including energy balance, system sizing, performance estimates, and efficiency assumptions,In addition to the related structural design of the PV mounting system, when applicable .

5.7 Bills of Quantities (BOQs), Cost Estimates, and Operation & Maintenance (O&M) Considerations

The Consultant shall prepare detailed Bills of Quantities (BOQs) and engineer’s cost estimates for all designed works, suitable for UNOPS procurement and implementation.

This shall include:

• Itemized BOQs aligned with UNOPS procurement standards, Iraqi market practices, and the approved design documentation.
• Transparent cost estimates with clearly stated assumptions, unit rates, contingencies, and exclusions.
• Value for money considerations without compromising technical quality, safety, or sustainability.

The Consultant shall also define operation and maintenance (O&M) requirements, including staffing profiles, preventive maintenance schedules, spare parts lists, replacement cycles, and training needs, consistent with the UNOPS Design Planning Manual for Buildings.

All BOQs, cost estimates, and O&M provisions shall be consistent with and fully traceable to the approved technical designs and supporting calculations.

5.8 Design Review and Approval by UNOPS IPMG

All design submissions under Stage Two shall be subject to formal technical review and approval by UNOPS IPMG, in accordance with UNOPS design governance procedures and the UNOPS Design Planning Manual for Buildings.

The mandatory review stages are:

• 30% Design (Concept Design);
• 60% Design (Preliminary Design);
• 90% Design (Detailed Design);
• 100% Receiving the Design Certificate.

At each stage, the Consultant shall submit:

• Complete design drawings and specifications;
• All supporting technical calculations relevant to that stage;
• Updated BOQs and cost estimates, where applicable;
• A consolidated comment response matrix addressing IPMG comments.

Progression between stages shall occur only after written approval by UNOPS. Designs not supported by adequate technical calculations, or not compliant with the UNOPS Design Planning Manual for Buildings, shall be considered incomplete and shall not be approved.

6. Locations of the Intervention

The intervention will be implemented in six (6) locations within Sinjar District, Ninewa Governorate, as identified and validated by UNOPS in coordination with the Local Government of Ninewa.

The selected locations represent communities experiencing acute water supply challenges, including groundwater scarcity, damaged or insufficient infrastructure, and increased demand due to returnee populations and future recovery needs. The locations are indicative at this stage and subject to confirmation through the Stage One groundwater feasibility investigations.

In cases where a proposed location is classified as Not Feasible, the Consultant shall identify and assess alternative nearby locations within the same service catchment area, in coordination with UNOPS and the Local Government of Ninewa, in accordance with the procedures defined in this TOR.

Final confirmation of locations eligible to proceed to Stage Two (design) shall be subject to formal written approval by UNOPS based on the outcomes of Stage One.

7. Roles and Responsibilities

Clear delineation of roles and responsibilities is essential to ensure effective coordination, technical quality, accountability, and compliance with UNOPS governance and donor requirements throughout the assignment.

7.1 UNOPS

UNOPS shall be responsible for overall contract management and project oversight. This shall include, but not be limited to:

• Acting as the Contracting Authority and primary point of contractual communication with the Consultant.
• Managing contract administration, approvals, and correspondence in accordance with UNOPS procedures.
• Reviewing and approving deliverables submitted by the Consultant, including all reports, designs, calculations, and supporting documentation.
• Issuing formal decisions regarding progression between Stage One and Stage Two, including written authorization to proceed with Stage Two.
• Coordinating with the donor (KfW) and ensuring compliance with applicable donor requirements.
• Facilitating coordination with relevant stakeholders, including the Local Government of Ninewa, where required.
• Retaining final authority on scope interpretation, approvals, and acceptance of outputs.

Only designs formally approved by UNOPS IPMG shall be considered valid for procurement and construction.

7.3 Local Government of Ninewa

The Local Government of Ninewa, through the relevant directorates, shall serve as the primary institutional focal point for this assignment. Its role shall include:

• Providing coordination and facilitation at the governorate and district levels.
• Participating in technical consultations, validation of findings, and review meetings, as requested by UNOPS.
• Supporting future ownership, operation, and maintenance of the implemented water supply systems.
• The Local Government of Ninewa shall not assume contractual or financial liability under this assignment.

7.4 Consultant

The Consultant shall bear full professional responsibility for the execution of the assignment and shall be accountable for the technical quality, accuracy, and completeness of all outputs. The Consultant’s responsibilities shall include, but not be limited to:

• Planning, managing, and executing all activities under Stage One and Stage Two in accordance with these Terms of Reference.
• Mobilizing qualified and approved Key Personnel in accordance with the TOR requirements.
• Ensuring that all investigations, designs, reports, and calculations comply with UNOPS requirements, IPMG guidance, applicable Iraqi regulations, and donor standards.
• Preparing and submitting all deliverables in a timely manner and responding to review comments issued by UNOPS and UNOPS IPMG.
• Ensuring that all designs are supported by complete, auditable technical calculations and documentation.
• Complying with UNOPS Health, Safety, Social, and Environmental (HSSE) requirements at all times.
• Bearing responsibility for any errors, omissions, or inconsistencies in the work and correcting them at no additional cost to UNOPS.

7.5 Coordination and Communication

The Consultant shall maintain regular coordination with UNOPS and participate in review meetings, site visits, and technical workshops as required. All formal instructions, approvals, and decisions shall be issued by UNOPS in writing.

8. Required Key Personnel

The Consultant shall propose suitably qualified and experienced Key Personnel for both Stage One (Groundwater Feasibility) and Stage Two (Design). All proposed Key Personnel shall have demonstrable experience in similar assignments involving groundwater investigations, water treatment plant design, and water supply infrastructure in arid or semi-arid environments.

Academic qualifications shall be supported by relevant professional experience. CVs submitted shall clearly demonstrate compliance with the minimum requirements specified below. UNOPS reserves the right to reject any proposed personnel who do not meet these minimum criteria.

8.1 Stage One – Feasibility

8.2 Stage Two – Design

The staffing levels, qualifications, and time inputs specified in this Terms of Reference represent the minimum required resources necessary to deliver the assignment in accordance with UNOPS technical, quality, and governance requirements.

The Consultant shall be fully responsible for assessing the adequacy of the proposed team and shall mobilize any additional personnel, specialists, or support resources deemed necessary to successfully complete the assignment, without any request for additional cost, variation, or time extension.

The need to mobilize additional resources, whether due to technical complexity, field conditions, scheduling constraints, design coordination requirements, or review comments, shall not constitute grounds for:

• Adjustment of the contract price;
• Submission of variation orders;
• Claims for additional payment; or,
• Requests for extension of time.

UNOPS shall not be obligated to approve additional costs arising from the Consultant’s staffing decisions. The Consultant shall ensure that sufficient resources are available at all times to meet the scope, schedule, and quality requirements of this TOR.

9. Health, Safety, Social and Environmental (HSSE) Requirements

The Consultant shall comply at all times with the UNOPS Minimum HSSE Requirements, applicable Iraqi laws and regulations, and relevant international good practice. HSSE compliance shall be treated as a core contractual obligation and shall apply to all activities under Stage One and Stage Two, including field investigations, drilling works, surveys, site visits, and design activities.

9.1 HSSE Planning and Documentation

Prior to mobilization to any site, the Consultant shall prepare and submit a site-specific HSSE Plan for review and written approval by UNOPS. No field activities shall commence without approved HSSE documentation.

The HSSE Plan shall be proportionate to the risks of the activities and shall include, at a minimum:

• HSSE policy statement and organizational structure.
• Roles and responsibilities for HSSE management, including nomination of a qualified HSSE focal point.
• Task specific risk assessments and method statements for all activities, including geophysical surveys, drilling, pumping tests, sampling, and site access.
• Emergency preparedness and response procedures, including first aid, medical evacuation, fire safety, and incident response.
• Procedures for contractor and worker induction, toolbox talks, and ongoing safety briefings.
• Provision and enforcement of appropriate personal protective equipment (PPE).
• Traffic management and site access control measures.
• Environmental protection measures, including waste management, spill prevention, and protection of soil and groundwater.
• Community safety measures, including site fencing, warning signage, and public awareness.
• Social safeguards, including grievance handling and respectful engagement with local communities.

9.2 Compliance During Implementation

The Consultant shall:

• Implement the approved HSSE Plan consistently across all sites.
• Ensure that all personnel and visitors comply with HSSE requirements.
• Maintain HSSE records, including risk assessments, training records, incident logs, and inspection reports.
• Immediately report all incidents, near-misses, and unsafe conditions to UNOPS in accordance with UNOPS reporting procedures.
• Cooperate fully with UNOPS site inspections, audits, and HSSE reviews.

9.3 Environmental and Social Protection

The Consultant shall take all reasonable measures to prevent environmental damage and minimize social disturbance, including:

• Proper handling and disposal of drilling cuttings, drilling fluids, wastewater, and hazardous materials.
• Prevention of groundwater contamination during drilling and testing.
• Minimization of noise, dust, and traffic disruption.
• Respect for local customs, land use, and community sensitivities.
• Coordination with the Local Government of Ninewa and local stakeholders on site activities.

9.4 Enforcement and Non-Compliance

Failure to comply with HSSE requirements may result in:

• Suspension of site activities;
• Rejection of deliverables;
• Withholding of payments; and/or
• Termination of the contract, in accordance with UNOPS contractual provisions.

HSSE compliance shall not relieve the Consultant of responsibility for the safety and wellbeing of its personnel or the public.

10. Deliverables, Duration, and Payment

10.1 Duration

The duration of the assignment shall be structured in two distinct stages as follows:

Stage One – Groundwater Feasibility:

The duration of Stage One shall be up to (90) calendar days from the date of commencement, inclusive of all investigations, exploratory drilling, pumping tests, water quality analysis, feasibility classification, identification of alternative locations (if required), and submission of all Stage One deliverables.

Stage Two – Water Treatment Plant Design:

The duration of Stage Two shall be (150) calendar days from the date of UNOPS’ written authorization to proceed. Stage Two duration shall apply only to locations approved by UNOPS for progression to design.

No extension of time shall be granted due to the exclusion of locations deemed not feasible, the need to identify alternative locations, or additional technical effort required to comply with UNOPS or IPMG review comments.

The Consultant acknowledges that procurement and construction activities are managed separately by UNOPS and may be subject to delays due to administrative, market, security, or operational factors beyond the control of UNOPS.

Accordingly:

• The Consultant shall not be entitled to any additional payment, variation, or compensation due to delays arising during the procurement phase.
• The Consultant shall not submit any claims related to delays, suspension, or extended timelines during the implementation phase of the works.
• The Consultant’s obligation to provide technical support during implementation shall remain valid regardless of procurement or construction delays, subject to the terms of this TOR.

10.2 Stage One Deliverables

Stage One deliverables shall include, at a minimum, the following:

• Inception Report, including methodology, work plan, staffing, schedule, and HSSE Plan.
• Desktop Study and Hydrogeological Assessment Report.
• Socio-Economic and Water Demand Assessment Reports, including gender- and age-disaggregated data, returnee considerations, and future expansion scenarios.
• Geophysical Investigation Reports (VES/ERT), including proposed drilling locations and justifications.
• Exploratory Borehole Logs and Construction Records.
• Pumping Test and Water Quality Analysis Reports.
• Feasibility Classification Notes for each investigated location, including any approved alternative locations.
• Stage One Feasibility Summary Report, consolidating findings, classifications, and recommendations.

All Stage One deliverables shall be supported by appropriate technical documentation, field records, data tables, figures, and calculations, and shall be submitted to UNOPS for review and approval.

10.3 Stage Two Deliverables

Stage Two deliverables shall be prepared only for locations approved by UNOPS and shall include, at a minimum:

• Design Basis Report (DBR), including all supporting technical calculations.
• 30% Design Submission (Concept Design), including preliminary layouts, site topographics, hydraulic schematics, process concepts, and calculations.
• 60% Design Submission (Preliminary Design), including developed drawings, calculations, and updated cost estimates.
• 90% Design Submission (Detailed Design), including fully coordinated drawings, specifications, BOQs, and complete technical calculations.
• Receiving the Design Certificate, incorporating all UNOPS IPMG comments and approvals.
• Final BOQs and Engineer’s Cost Estimates.
• Outline Operation and Maintenance (O&M) Requirements, including staffing and training considerations.

All Stage Two deliverables shall comply with UNOPS technical standards, the UNOPS Design Planning Manual for Buildings, applicable Iraqi regulations, and IPMG governance requirements.

10.4 Review, Approval, and Acceptance

• All deliverables under both stages shall be subject to formal review and written approval by UNOPS.
• Design related deliverables shall be reviewed and approved by UNOPS IPMG at the designated design stages.
• Deliverables that are incomplete, inconsistent, not supported by technical calculations, or non compliant with TOR requirements shall be returned for revision.
• Approval of deliverables does not relieve the Consultant of responsibility for errors or omissions.

10.5 Design Support During Implementation

In addition to the completion of Stage Two (Design), the Consultant shall provide technical advisory support during the implementation phase of the approved water treatment plants.

This support is intended to ensure design intent is correctly interpreted and implemented, and to address any technical gaps, clarifications, or unforeseen issues arising during procurement and construction.

The Consultant’s responsibilities during implementation shall include, but not be limited to:

• Providing technical advice, clarifications, and recommendations in response to queries raised by UNOPS, contractors, or supervision teams related to the approved designs.
• Reviewing and advising on contractor technical submissions, shop drawings, material submittals, and method statements, where requested by UNOPS.
• Proposing practical engineering solutions to address minor design gaps, constructability issues, or site-specific constraints identified during implementation, without altering the approved design intent unless formally instructed by UNOPS.
• Supporting UNOPS in resolving technical issues arising from discrepancies between design assumptions and site conditions.
• Participating, as required, in coordination meetings, site visits (minimum 3 site visits during implementation of the construction works and adhoc visits when required by UNOPS), and technical discussions during implementation.

The Consultant shall perform these services as part of the overall consultancy scope and shall not be entitled to any additional payment for such support beyond the amounts defined in the payment schedule.

10.6 Payment Schedule

Payments shall be milestone based, linked exclusively to the satisfactory submission and written approval of deliverables by UNOPS. Payments shall be made in accordance with the schedule below and subject to compliance with all TOR requirements, including HSSE, staffing, and UNOPS IPMG approvals.

Stage One – Groundwater Feasibility (Up to 90 Calendar Days)

The remaining 10% of the contract value is allocated to Stage Two and is not payable unless Stage Two is formally authorized by UNOPS.

Stage Two – Water Treatment Plant Design (150 Calendar Days)

UNOPS shall retain ten percent (10%) of the Stage Two consultancy fees as a performance retention to cover post design technical support and follow-up during the implementation phase.The retained amount shall be disbursed only upon the completion and commissioning of the six (6) water treatment plants, subject to confirmation by UNOPS that the Consultant has satisfactorily fulfilled its implementation support obligations. Retention shall not be released until all required advisory support has been provided to UNOPS’ satisfaction.

11. Consultancy Firm Qualifications

The Consultant shall be a legally registered, technically competent, and financially sound consulting firm with demonstrated experience in groundwater investigations and water supply system design in arid and semi-arid environments. The Consultant shall have the institutional capacity to deliver both Stage One (Groundwater Feasibility) and Stage Two (Water Treatment Plant Design) in full compliance with UNOPS requirements, IPMG design governance, and donor standards.

11.1 Legal and Institutional Eligibility

The Consultant shall:

• Be a legally registered consulting firm with valid registration and authorization to operate in Iraq.
• Provide valid business registration, tax compliance, and corporate documentation as part of the proposal.
• Have no record of contract termination for non-performance within the last five (5) years.
• Demonstrate the ability to enter into a contract with UNOPS in accordance with UNOPS General Conditions.

11.2 Relevant Institutional Experience

The Consultant shall demonstrate proven institutional experience in assignments of similar scope, complexity, and risk profile.

At a minimum, the Consultant shall have:

• At least five (5) years of institutional experience in hydrogeological investigations, groundwater development, and water supply planning.
• Successful completion of at least two (2) comparable assignments within the last five (5) years, involving:
  • Hydrogeological and geophysical investigations for groundwater development;
  • Exploratory borehole drilling supervision and aquifer testing;
  • Feasibility assessment of groundwater resources; and
  • Design of water treatment plants or groundwater-based water supply systems.
  • Experience in Iraq or similar arid/semi-arid contexts shall be considered a strong advantage.