TENDER DOCUMENTS Volume III General and Technical …

FARA 1-WATER LOSS REDUCTION IN ZARQA MAIN PROJECT General and Technical Requirement

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The Hashemite Kingdom of Jordan

JORDAN WATER COMPANY – MIYAHUNA LLC

USAID FARA PROJECT 1 PHASE III

CONTRACT No.: C-T-21-0034 FARA PHASE III

DESIGN, BUILD

WATER LOSS REDUCTION IN ZARQA MAIN

TENDER DOCUMENTS

Volume III

General and Technical Requirements


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Table of Contents

Contents 1. 5

1.1 Introduction 4

1.2 Scope of Work 4

2. General Requirements 7

2.1 Temporary Facilities and Controls 7

2.2 Drawings and Reports 7

3. 12

4. Structural Works Design Criteria 21

4.1 General 21

4.2 Codes and Standards 21

4.3 Allowable Soil Bearing Capacity 21

4.4 Loadings 22

4.4.1 Permanent Loads 22

4.4.2 Live Load 22

4.4.3 Temperature Load 23

4.4.4 Earth Pressure Loads 23

4.4.5 Liquid Pressure Loads 23

4.4.6 Other Loads 24

4.5 Load Combinations 24

4.5.1 Service Load Combinations: 25

4.5.2 ULTIMATE LOAD COMBINATIONS: 25

4.6 Material Properties 25

4.6.1 Aggregates 25

4.7 Concrete 26

4.7.1 Concrete Durability Requirements 26

4.7.2 Concrete Strength 26

4.7.3 Concrete Cover 26

4.8 Reinforcement 27

4.9 Maximum Deflection 27

4.10 Maximum Crack Width 28

4.11 Check of settlement 28

4.12 Water table 28


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4.13 Control Joints 29

4.13.1 Expansion Joints 29

4.13.2 Contraction Joints 29

4.14 Construction Joints 29

4.14.1 Concrete Protection 31

4.14.2 Water Stop 31

4.15 Structural Design Software 31

5. 17

5.1 Project Facilities 32

5.1.1 Zarqa Main Pump Station 32

6. 26

6.1 Roads 62

6.1.1 Roads and Site Grading Requirements 62

6.1.2 Geometric design 62

6.1.3 Pavement and Materials 63

6.1.4 Roadside furniture 63

6.1.5 Surveying 64

6.1.6 British Standards. 64

6.1.7 Road type 64

6.1.8 Design of Vertical and Horizontal Alignments 64

6.1.9 Pavement Design 65

6.1.10 Design Output 65

6.1.11 Site Clearance and Earthworks 65

6.1.12 Storm Water Drainage 66

6.1.13 Design Rainfall Intensity 66

6.1.14 Permitted water depth 66

6.1.15 Conveyance structures 66

6.1.16 Minimum and maximum velocities 66

6.1.17 Entrance and outlet protections 66

6.1.18 Rainfall-Runoff Modelling 66

6.2 Existing Structures 66

7. Project Stages 67

7.1.1 Stage 2: Design Stage 71

7.1.1. Stage 3: Execution Stage 71

7.1.1.1. Requirements 71

7.1.1.2. Environment, Health and safety requirements 72

7.1.1.3. Submittals 72

7.1.1.4. Training 74


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7.1.2. Stage 4: Commissioning 74

8. 35

8.1. Factory acceptance test (FAT) 76

8.2. Site Acceptance Test (SAT)

……………………………………………………………………………….…………76


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List of Tables

Table 4-1 :Material Density 25

Table 4-2 :Live Load 25

Table 4-3 :Liquid Unit Weight 27

Table 4-4 :Minimum Concrete Strength (MPa( 29

Table 4-5 :Minimum Concrete Cover (mm( 30

Table 4-6 :Maximum Deflection 30

Table 5-1 :Methods of the Operation for The Machines 45

Table 5-2 :PLC I/O List 47

List of Figures

Figure 4-1: Earth Pressure Load 26

Figure 4-2 :Liquid Pressure Load 27

Figure 4-3 :Expansion Joints in Walls 33

Figure 4-4 :Expansion Joints in Floors 33

Figure 4-5 :Complete Formed Contraction Joints in Walls 33

Figure 4-6 :Complete Formed Contraction Joints in Floors 33

Figure 4-7 :Complete Included Contraction Joints in Walls 33

Figure 4-8: Complete Included Contraction Joints in Floors 33

Figure 4-9 :Partial Formed Contraction Joints in Walls 33

Figure 4-10 :Partial Formed Contraction Joints in F loors 33

Figure 4-11 :Partial Included Contraction Joints in Walls 34

Figure 4-12 :Partial Included Contraction Joints in Floors 34

Figure 5-1 :Schematic Diagrams for the Panel Boards 39

List of Annexes

Annex 1: Sluice gates for refurbishment and replacement in Zarqa Ma’in and Mu


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1. Project Description

1.1 Introduction

Jordan Water Company (Miyahuna) is a limited liability company, fully owned by Water Authority of Jordan

(WAJ). The company was established and started working as a water and wastewater business-oriented utility

company in 2007. Its service area in its start was covering only the governorate of Amman. Later, WAJ

added Madaba and Zarqa governorates to Miyahuna service area in 2019 and 2020, respectively.

Miyahuna serves about (951) thousand customers (end of 2019 record), with 3.4% growth rate in customer

count compared to 2018. The water supplied to Miyahuna’s system during 2019 reached 10 MCM in

Madaba, 30.9 MCM in Zarqa and 200 MCM in Amman.

Having most of the supply for Amman coming from faraway and/or low elevation sources that need high

energy consumption to convey water, therefore, the cost of supplying water is relatively high in Amman

which make the efforts to minimize losses more feasible and essential to sustain the service.

The Non-Revenue Water (NRW) percentage is one of the most important performance indicators for any

water utility. Having the NRW percentage in Miyahuna ranging between 38-54.4% in the various service

area indicates high losses in the system and/or considerable amounts of revenue water not billed due to

deficits in metering and billing infrastructure. The planning and prioritization of investments and

improvement efforts lack support from solid informational infrastructure causing weak impacts and results

on Miyahuna performance and service levels.

This volume describes the minimum requirements for the design and construction of this project with all required facilities.

1.2 Scope of Work

● The project objective is to guarantee the continuity of water supply from Wadi Ma’in and Zara to Zarqa Ma’in pumping station during the rainy season by implementing the required measures to reduce water turbidity after flooding events prior to pumping to the treatment plant.

● Zarqa Ma’in pumping station receives water from two sources:

o Zara pumping station

o Wadi Zarqa Ma’in

● The scope of work of the Contractor includes the design, installation, execution, testing, commissioning, training and operation of the treatment plant and all of works described


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below for two years.

Knowing that, Initial taking over of the project is after successfully testing the works during

the first rainy season after the completion of Execution stage for all project components.

The proposed location of the new treatment unit (settling basin)

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Lots No. Block Name Block No.

9 Abu-Asal 37

3 AL-Mustaderah 3 The system must achieve all the followings:


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- Adequate to treat 2000 m3/hr.

- Achieves a minimum of 90% turbidity removal, noting that the turbidity value would

possibly reach to 5000 NTU without losing water

- Ensures adequate flushing when required.

- Be able to isolate the Wadi water from the plant while keeping the Zara pump station

source incoming when required.

- Ensure inlet flow control and measurement from Wadi Zarqa Ma’in

- Ensure gravity flow

- Can be operated safely and all components/units can be reached safely by operators and

equipment if required.

- All used equipment and material shall be of the highest quality in the market and shall be

suitable for the intended use.

- The contractor is responsible for conducting all hydraulics & hydrological needed studies.

- The contractor is responsible for collecting of samples and measuring of turbidity values.

- Providing an operational laboratory items on site, including the necessary equipment and

necessary glassware

The necessary equipment consisting of, but not limited to, the following main components:

✔ Different types of glassware’s Gradated cylinders, beakers, bottles,

✔ Bench top Turbidity meter

✔ Laboratory Balance analytical (ELECTRONIC SCALE)

✔ PH meter with bench top

✔ THERMOMETER

✔ Jar test apparatus with 6 mechanical stirrers

- Design, built store for purpose of chemicals storage on site

- Achieves all requirements describes in the contract of this project.

The scope of work of the Contractor shall include, but not limited to, the design, supply,

installation, execution, testing, commissioning, training and operation of all the works for two

years. Operation will be just during the rainy season (rainy season from beginning of October to

the end of April), and subjected to Miyahuna requested during the defect notification period.

Initial taking over of the project is after successful testing the works during the first rainy

season after the completion of Execution stage for all project components.

The works include the following components:

● Chemically enhanced raw water treatment tanks and system of 2000 m3/hr capacity.

● Sluice gate at the inlet of the 900 mm pipe.

● Flushing sluice gate (1 m *1 m) at the weir intake area.

● Atoumatic Fine screen of 6mm bar spacing.

● 900 mm Flow control valve (with actuator)

● All connecting piping and structures between the treatment units.

● All required connecting piping and structures to the existing structures, water pipes and

flushing lines.


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● Replacement of the existing flushing GRP pipes (1200 mm diameter (114 m length) and

1500 mm diameter (58 m length))

● Refurbishment of 8 sluice gates and complete replacement of 2 sluice gates. The gates are

located in two different locations; Zarqa Ma’in and Zarqa weir location.

● Access road to the weir area of approximately 200 meters.

● Walk way to equipment of approximately 200 meters.

● Electromechanical works in two different locations; Zarqa Ma’in pumping station and Zara

Main pumping station.


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2. General Requirements

The Contractor shall cover the following requirements and activities. The Contractor shall carry

out any further activities that he believes are necessary to complete his obligations, these activities

will be considered as an integral part of his obligations.

2.1 Temporary Facilities and Controls

The works shall consist of the provision of Employer’s and Engineer’s Site offices and facilities by erection a prefabricated building at the discretion of the Engineer, including furnishing and maintaining, for the contract , all as per the documents and specifications.

2.2 Drawings and Reports

Contractor's Design Report and Drawings: The Contractor shall prepare and submit detailed design report and all civil, structural, architectural, mechanical, and electrical drawings for all required works. These drawings shall include but not limited to the following:

1. Structural Drawings

a) General notes and details.

b) Foundations plans, details, and sections.

c) Slabs layout, beams details, and columns details.

d) Walls details and sections.

e) Special structural details.

f) Any other drawings suggested by the Contractor or requested by the Engineer.

2. Architectural Drawings

a) Site topography plans.

b) Any other drawings suggested by the Contractor or requested by the Engineer.

3. Mechanical Drawings

a) Mechanical legend and abbreviations.

b) Site plan piping routing layout.

c) Building and process plans and sections, .. etc.

d) Schematic diagrams for the piping and other systems.

e) Surge equipment’s layout and sections.

f) Connection details.

g) Typical installation details.

h) Building services drainage plans.

i) Building services Domestic water system plans and schematic diagrams.

j) Building services firefighting plans.

k) Building services ventilation and air conditioning plans.

l) Building and process schedules of equipment.

m) Final process flow diagram.

n) Any other drawings suggested by the Contractor or requested by the Engineer.

4. Electrical Drawings

a) Electrical legend and abbreviations.

b) Cables routings site layout.


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c) External lighting site layout.

d) Electrical panels layout outdoor.

e) ELCB details.

f) Earthing layout including locations of earthing pits, main and round earth conductors.

g) Power single line diagrams.

h) Cables schedule.

i) P&IDs.

j) PLC Single line diagram and I/Os schedules.

k) SCADA system architectural arrangement.

l) Electrical details for trenches, manholes, lighting poles, cables installations, earthing,

lightning, and any other details requested by the Engineer.

m) Any other drawings suggested by the Contractor or requested by the Engineer.

The Contractor shall provide, install, execute, test and commission the works which are needed as per his design and Employer’s requirements.

Contractor's Shop Drawings: Contractor should submit all detailed shop drawings for any required works after achieving approvals on the design drawings. Approval on the shop drawings should be achieved.

Contractor's as Built Drawings: Contractor should submit all as Built drawings for any required works after finishing the execution of works. Approvals on the as Built drawings should be achieved.


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3. Process works and Design Criteria

The contractor shall design, install, execute, test, commission and operate the treatment plant for

two years. The system shall be adequate to treat 2000 m3/hr, to achieve a minimum of 90%

turbidity removal, to isolate Wadi water when required, to ensure flow control and measurement

and to ensure adequate flushing when required.

The Contractor shall prepare the detailed mechanical and equipment design drawings,

calculations and providing, installing, executing, testing and commissioning of the mechanical

and equipment works which include but not limited to the followings:

a) Design, supply, build, test and commission, chemically enhanced, two identical treatment

lines consisting of, but not limited to, the following main components:

● Distribution chamber to ensure equal distribution of the flow to the two treatment lines.

● Two Coagulation chambers (one for each treatment line) equipped with mechanical

mixers and all required piping, pumps, chemical dosing system and chemical preparation

system. The chambers and equipment shall be sized to handle a flow of 2000 m3/hr.

The velocity gradient for the coagulation mixer shall not be less than 1000/s.

● Two Flocculation chambers (one for each treatment line) equipped with mechanical

mixers and all required piping, pumps, chemical dosing system and chemical preparation

system. The chambers and equipment shall be sized to handle a flow of 2000 m3/hr.

the velocity gradient for the flocculation mixer shall not be less than 60/s.

● Two Concrete settling tanks equipped with lamella settlers, lamella cleaning system,

sludge flushing system connected to the flushing lines and any required components to

ensure the reliable operation of the system. The tanks and lamella plate settlers shall be

sized and designed according to the following criteria:

- Each tank shall be equipped with hydraulic energy dissipation baffle at the inlet to

ensure the flow distribution. The tank inlet design shall ensure that the influent water

is not affecting the settled sludge or the sliding sludge from the lamella plates through.

- Lamella plates shall be installed on skids that can be easily removed by a crane for

maintenance purposes in the future. Each skid dimensions shall not exceed 2.5 m in

length and 2.5 m in width.

- Each tank shall be equipped with three effluent collection troughs along the tank

length. The troughs shall be made of stainless steel 304L.

- Lamella plates surface loading rate, calculated over the total plate horizontal projected

area, shall not be more than 0.5 m3/m2/hr.

- Tank surface overflow rate, calculated over the total tank footprint area, shall not be

more than 4 m3/m2/hr.

- Effective tank depth not less than 4 meters.

- Lamella sheet material: PVC

- Plate spacing not less than 50 mm.

- Plate inclination angle = 60˚

- Sludge collection area at tank bottom shall be equipped with high pressure perforated

air pipes to ensure high turbulence for settled sludge re-suspension efficiency for

flushing. The perforated pipes shall have their opening on both sides. Distance

between laid pipes shall not exceed 1 meter. The flushing system shall incorporate a


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sludge re-suspension air blower of more than 1500 m3/hr capacity. Flushing gates

shall be connected to the existing flushing lines.

- The contractor shall consider in the design that water flow shall be by gravity.

- After treatment, the treated effluent shall flow to the existing storage tank. All required

works and pipes to convey the water to the storage tank by gravity is part of the

contractor’s scope of work.

- The inlet to the new treatment works will be located at the exit of the existing settling

tanks. The design and construction of the connection works between the existing

settling tanks and the new works is part of the contractor’s scope of work.

b) Replace the existing main GRP flushing lines. The diameter and approximate length for

the required new pipes are 1200mm diameter * 114 m and 1500 mm diameter * 58 m. The

attached Annex 1(in volume 4) contains a summary of existing GRP flushing lines locations

included in this scope of work. The pipeline shall be provided with proper bedding, well

supported and outer protection shall be provided. Fittings, tees and connections to the

existing manholes and other pipes and structures are part of the contractors’ scope of work.

c) Replace the sluice gate at the inlet of the 900 mm pipe with a motorized sluice gate to

ensure that the station is isolated from the Wadi at flooding events. When the gate is shut,

the only source of water entering the pumping station/ treatment units is that from Zara.

d) Replace the flushing sluice (1 m *1 m) gate at the bottom of the weir with a motorized

sluice gate. This gate will be opened at flooding events to ensure that sediments are not

accumulating at the weir area.

e) Design, supply, install and commission a 6 mm bar spacing fine stainless-steel screen at the

inlet of the primary treatment works. The screen shall be equipped with automatic cleaning

device. A suitable screening wheeled bucket shall be provided by the contractor.

f) Design, supply, build and commission a flow control valve and flow meter on the 900 mm

line at the inlet of the works to allow the operators to control the water flow rate entering

treatment units. The flow meter shall be electromagnetic water meter type for raw water

measurement with accuracy (Max. Permissible error) ±0.5% of rate. Provisions should be

made to allow the operators to direct any extra flow not going to treatment units (exceeding

plant capacity) to the wash out line. The design and installation of the connection pipes to

the wash out lines are part of the contractor’s scope of work.

g) Design and build an access road to the weir to allow for the safe movement of heavy

equipment (Excavator) to reach the weir and remove the sediments whenever needed.

Approximate length of the access road is 200 m.

h) Design and build a safe walkway for the workers to access the wear and all installed

equipment safely. The approximate length of the walkway is 200 m.

i) The refurbishment or complete replacement of 10 sluice gates existing in two location;

Zarqa Ma’in pumping station and Zarqa weir location. The attached Annex 1 contains a

summary of gates included in this scope of work and details of an initial general inspection.

The scope of works of the contractor includes the inspection, assessment, design, supply,

removal of existing parts, installation, testing and commissioning of all the gates in the list.

The details in annex 1 shall be considered as the minimum works that can be performed

by the contractor to ensure the successful operation of the gates.


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The measurements, specs and refurbishment details provided in Annex 1, are for general

guidance only and they might contain inaccurate measurement, dimensions or assessments.

The contractor shall do his own inspection and assessment of the gates.

Where the gate is mentioned in Annex 1 as to be replaced, then a new gate shall be installed

in place of the old gate. The scope of work includes the removal of all the fixed and moving

parts of the existing gate.

When the gate is mentioned in annex 1 as to be refurbished, then the Contractor shall

perform his own inspection and assessment and perform all required works and supply

install and commission all required parts to ensure that the gate is working correctly. The

refurbishment works mentioned in Annex 1 shall be considered as minimum requirements.

j) Electromechanical works in two locations Zarqa Ma’in pumping station & Zara Ma’in

pumping station.

Description for needed electromechanical works at Zarqa-Ma’in Pumping Station:

Zarqa-Main Pump station consists of four horizontal pumps. The water is pumped into Amman.

The feeding Power for pumps is Medium voltage (6.6kv) rate.

✔ Supply and install new automated control system to operate, monitor and control the

station locally and remotely from the SCADA including all the necessary protections for

pumps.

✔ Motor protection unit is already installed and its type is (ABB REM 543) and no need to

replace it, just connect it to the new system, the signals and readings from the REM 543

include but not limited are:

1- Under/over voltage

2- Under/over current

3- Unbalance voltage and current

4- Pump bearing temperature

5- Motor winding and bearing temperature

*Note: Any protection or reading that are not activated on REM 543, the contractor

is responsible to configure and activate these signals

*Note: The contractor is responsible of connecting these signals either if he will use

the existing cables or to install new cables if he needs that.

✔ Pump protections (electrical & water protections) must be activated both locally (on

MCC) and remotely (on PLC).

✔ Supply and install a new PLC controller plus 12 inch HMI to monitor and operate the

station by the operator including all electrical works.

✔ The PLC (RTU) must transfer all station signals to the Main SCADA system in Dabouq

SCADA center, knowing that, the main SCADA system is already installed and under

operating and warranty by FARA 9 contractor, so when adding this site to the SCADA

system, an arrangement must be done with FARA9 contractor and all the related cost

must be reflected without affecting on warranty. So it is requested to design and install

communication system and the suggested system is 4G mobile, but another reliable

communication system like microwave can be selected.

✔ Supply, Install, and commission Butterfly motorized control valve for the main discharge

pipe DN: 900mm /PN: 25 bar.


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✔ Supply, Install, and commission Butterfly valve for the pumps suction pipe DN: 500mm

/PN: 16 bar (Quantity: 4).

✔ Supply and install Butterfly motorized control valve for the pumps discharge pipe DN:

450mm /PN: 25 bar. (Quantity: 4).

✔ Supply, Install, and commission circuit breaker ABB type (HD4/P 12.06.25) 50 Hz

frequency, 630 A rated current, 12 KV rated voltage. (Quantity:1)

✔ Supply, Install, and commission ABB contractor (UniGear type ZVC) 50-60 Hz

frequency, 7.2 KV rated voltage and 400 A rated operational current.(Quantity:3)

✔ Supply, Install, and commission the following instruments to be implemented in the

station, which are:

● For each pump, two pressure switches, one on the suction side and the other on the

delivery side

● For each pump, No-flow

● For each pump, two Pressure transmitters (analog), one on the suction side and the other

on the delivery side.

● On the main suction pipe, a pressure transmitter, and another one for the main delivery

side.

● For each pump, all needed electrical, mechanical, and civil works and activation for all

motor and pump thermal sensors on local and remote mode.

● Radar or laser level measuring sensor to monitor the reservoir water level.

✔ Supply, Install, and commission two Drainage Submersible pumps systems (Duty and

stand by) with all needed accessories (auto and manual).

Description for needed electromechanical works at Zara-Ma’in Pumping Station:

Zara-Main Pump station consists of three horizontal pumps. The water is pumped into Zarqa'a

Ma’in. The feeding Power for pumps is low voltage (400V) rate.

✔ Supply, Install, and commission new automated control system to operate, monitor and

control the station locally and remotely from the SCADA including all the necessary

protections for pumps.

✔ Supply, Install, commission and activate Motor protection modules (qty:3) with all

electrical works and adding current transformers (CTs),

Motors & pumps protections at least must contain the following:

1- Under/over voltage

2- Under/over current

3- Unbalance voltage and current

4- Pump bearing temperature

5- Motor winding and bearing temperature

*Note: The contractor is responsible of connecting these signals either if he will use the

existing cables or to install new cables if he needs that




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✔ Supply, Install, commission new PLC controller plus 12 inch HMI to monitor and

operate the station by the operator including all electrical works.



✔ The PLC (RTU) must transfer all station signals to the Main SCADA system in Dabouq

SCADA center, knowing that, the main SCADA system is already installed and under

operating and warranty by FARA 9 contractor, so when adding this site to the SCADA

system, an arrangement must be done with FARA9 contractor and all the related cost

must be reflected without affecting on warranty. So it is requested to design and install

communication system and the suggested system is 4G mobile, but it can be suggested

other reliable communication system like microwave.

✔ Supply and install main suction header 600mm with butterfly valve 600 mm and install a

strainer, and main discharge header 500mm with butterfly valve 500 mm discharge pipe.

✔ Supply, Install, and commission the following instruments to be implemented in the

station, which are For each pump, two pressure switches, one on the suction side and the

other on the delivery side

● For each pump, No-flow

● For each pump, two Pressure transmitters (analog), one on the suction side and the other

on the delivery side.

● On the main suction pipe, a pressure transmitter, and another one for the main delivery

side.

● For each pump, electrical works and activation for all motor and pump thermal sensors

on local and remote mode.

● Radar level measuring sensor to monitor the reservoir water level.


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4. Electrical Works Design Criteria

A. CONTRACTOR'S SCOPE OF WORK All electrical design works should be done upon the requirements of national technical specifications, in addition to the international codes and Client Requirements. These standards are:

1. General Technical Specifications for Buildings, Electrical Installations, Part 3 Ministry of

Public Works and Housing, Jordan.

2. Jordanian Electrical Codes.

3. American National Standard Institute (ANSI).

4. Institute of Electrical and Electronics Engineers (IEEE).

5. National Electrical Code (NEC).

6. National Electrical Manufacturers Association (NEMA).

7. Underwrites’ Laboratories (UL).

8. International Electro-technical Commission (IEC) Standards.

9. The Client Requirements.

10. In addition, Electricity Distribution Company (EDCO) and the public guidelines and

regulations must be observed.

Contractor shall prepare the detailed electrical design drawings, provide, install, execute, test and commission the electrical works for the pump station as follows:

a. Power Supply

● Electrical power calculations and demand to insure that the feed electrical supply is

sufficient to serve the new demand.

● Electrical calculations for the main transformer capacity cable sizing and upgrading

requirements

● The new electrical items shall be powered from the existing/nearest power supply, maybe

existing main distribution board. Contractor shall check with the project Client to choose

the power source for the new facilities.

● The contractor shall make all necessary communications with the Electricity Company

(EDCO) to supply the site with electrical current with the required capacity and to

provide all electric panels, cables, devices and equipment needed to the new pumping

station and to the distribution and operation panels for existing tower pumps and all

needed Cables, instruments, protection relays, trenches, manholes, electrical and civil

works, and according to the recommendations of the supervisory committee.

● Supply and Install new electrical panels (Main Breaker as EDCO specifications and

requirements, Main Distribution Panel, Operation Panels (Variable frequency Drive) and

all needed Cables, instruments, protection relays, trenches, manholes, electrical and civil

works.

b. Existing Gates and Actuators

1. Supply, install, test and commission new motorized inlet gate to replace the existing old

one on the 900mm pipe.


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2. Supply, install, test and commission new motorized flushing gate to replace the existing old

one as the mentioned specifications.

c. Main Distribution Board

Supply, install, test and commission new main distribution board (MDB) to be installed near the new treatment structures or could be installed inside the nearest electrical room if any. Contractor is needed to verify the site and decide where to install this new main distribution board. The main distribution board shall include compartment for the main moulded case circuit breaker incomer, compartment for the capacitor bank, and compartment for outgoing moulded case circuit breakers. All power, control and monitoring devices, indication lamps as per specifications.

SCADA & PLC & RTU

Supply, install, test and commission new SCADA system & HMI. The new SCADA system and HMI shall include monitor screens, run time, development & engineering software licenses,. Contractor shall submit to the engineer the new SCADA & HMI structure.

The SCADA software must be installed and developed on a laptop and licensed. The laptop specs must be at least core i7 10th generation and 16 giga byte ram and 15 inch (at least) screen size. The SCADA on The laptop must be capable of monitor & control the whole station via VPN technology or any other method.

PLC programming software must be installed on other laptop and licensed for any future maintenance. All the required software for all devices must be installed and licensed on this laptop. The laptop specs must be at least core i7 10th generation and 16 giga byte ram and 15 inch (at least) screen size.

So, the SCADA system and HMI in this project must contain at least the following: 1- Zara Ma’in station (Control & monitoring) 2- Zarqa’a Ma’in station main pumps (control & monitoring) 3- Zarqa’a Ma’in pre-treatment station with all gates and valves (control & monitoring) - Note that, it is meant of “SCADA” in this section, the new SCADA on the laptop - Note that, the mentioned stations before must be connected to the main SCADA in

Dabouq.

Programmable Logic Controller (PLC) / REMOTE TELEMENTRY UNIT (RTU)

There are three PLC panels to be installed in this project:

1- PLC panel in Zarqa’a Ma’in station to control & monitor the main station pumps and

transfer the station signals to the HMI & the new SCADA on the laptop and Dabouq

main SCADA.

2- PLC panel in Zarqa’a Ma’in pre-treatment station to control & monitor the pre-treatment

process and gates and valves with all related electrical & mechanical machines and

equipment and transfer the station signals to the HMI & the new SCADA on the laptop

and Dabouq main SCADA.

3- PLC panel in Zara Ma’in station to control & monitor the station pumps and transfer the

station signals to the HMI & the new SCADA on the laptop and Dabouq main SCADA.

d. Control Panels/PLCs

1. Supply, install, test and commission a control panel to control the flushing gate (CP-FG)

to provide power and control the operation of the motorized new flushing gate for the

weir, and to control the inlet gate (CP-IG) to provide power and control the operation of


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the motorized new inlet gate for the pump station and to control the flow control valve

(CP-FCV) to provide power and control the operation of the flow control valve, flow meter

etc which will be installed on the 900mm inlet to the pump station and to control the pre-

treatment station to provide power and control the operation of the inlet mechanical

screen, pumps’ motors, mixers, chemical dosing system and chemical preparation system

for the two coagulation and two flocculation chambers.

The control panel enclosure shall have a section which comprises a programmable logic

controller (PLC).

The functions of the PLC are:

1- To monitor and control the operation and status of the motorized flushing gate.

2- To monitor and control the operation and status of the motorized inlet gate

3- To monitor and control the operation and status of flow control valve, flow meter

etc. which will be installed on the 900mm inlet to the pump station

4- To monitor and control the operation and status of the electromechanical equipment

such as mechanical fine screen ,pumps’ motors, mixers, chemical dosing system and

chemical preparation system for the two coagulation chambers and two flocculation

chambers, two settling tanks, instruments, level meters, flow meters, actuated valves

etc.

● Contractor shall prepare full detailed design for the PLC and include all I/Os which are

needed. The submitted type and functionality of the PLC is subject to the Engineer's

approval.

Contractor is needed to verify the site and decide where to install this new control panel

(CP).

2. Supply, install, test and commission settling tank1 control panel (CP-ST1) to provide power

and control the operation of the electrical machines of settling tank1. This control panel

shall be installed on the bridge of settling tank1.

3. Supply, install, test and commission settling tank2 control panel (CP-ST2) to provide power

and control the operation of the electrical machines of settling tank2. This control panel

shall be installed on the bridge of settling tank2.

4. Each Control panel shall have busbar, main moulded case circuit breaker, Soft starter or

Variable Frequency Drive(VFD) depends on the application ,UPS, power, control and

monitoring devices, three-way selector switches (Local, Off, Remote), On/Off push

buttons, indication lamps as per specifications.?

5. Each control panel shall be supplied by power from the main distribution board.

6. All signals shall be received/transmitted to the related PLC and after that transmitted to

the SCADA systemand HMI. Contactor is responsible to provide and install all related

power, control and signal cables between the pumps, motors, mixers, instruments and the

related control panels and PLC.

7. The PLC shall be linked with the SCADA system and HMI


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8. The minimum needed I/Os for the pumps, mixers and related devices and instruments are

shown in the I/Os table, Contractor maybe asked to add other I/Os, the added I/Os are

the responsibility of the Contractor and deem to be included in the unit price of the I/O

list.

9. Contractor shall prepare a list of the digital and analogue inputs/outputs which are related

to the pumps, motors, mixers and related devices and instruments with additional spare

I/Os not less than 25% of the used I/Os.

10. Each PLC shall be supplied by power from UPS installed inside the control panel enclosure.

11. The following figure in the next page shows the schematic diagrams for the panel

boards. These schematics shall be used as guidance. Contractor shall prepare the design

of these panels according to the actual number of machines, equipment devices

Note 1: This is a suggested PLC system structure, any other structure can be used, but

note that, it is required only to install one CPU with any required extensions and I/Os

Note 2: All the station signals must be connected to the SCADA on a laptop as described

in the SCADA section and to be connected to the main SCADA in Dabouq, these signals

transfer must be done with arrangement with FARA 9 Contractor with reflecting all costs.


21


22

Figure 5-1 :Schematic Diagrams for the Panel Boards

12. Local Control Panels

1. Supply, install, test and commission local control panel (LCP) for each mixer and pump of

the two coagulation chambers. Each LCP shall be installed near the related machine and

supplied by power from the pre-treatment control panel (CP-PT). Each local control panel

shall have moulded case circuit breaker, emergency stop, three-way selector switch (Local,

Off, Remote), On/Off push buttons, indication lamps as per specifications.

2. Supply, install, test and commission local control panel (LCP) for each mixer and pump of

the two flocculation chambers. Each LCP shall be installed near the related machine and

supplied by power from the pre-treatment control panel (CP-PT). Each local control panel

shall have moulded case circuit breaker, emergency stop, three-way selector switch (Local,

Off, Remote), On/Off push buttons, indication lamps as per specifications.

e. Earthing System

Supply, install, test and commission all needed material and equipment for construction an

earthing system for the main distribution board as specified to achieve an earth resistance not

more than 2 ohms. Work includes earthing rods, earthing conductors, earthing pits and any

accessories needed.

Contractor shall submit earthing calculations using appropriate calculation method to achieve the

number of earthing rods and earthing pits in addition to the size of earthing round conductors.

f. Main and Branch Low Voltage Power Cables

1. Supply, install, test and commission power cable between the existing power supply

(existing electrical panel) and the main distribution board (MDB) in addition to the branch

power cables between the control panels and the related motors.

2. Supply, install, test and commission all power cables between the main distribution board

(MDB) and the flushing gate control panel (CP-FG).


(MDB) and the inlet gate control panel (CP-IG).


(MDB) and the flow control valve control panel (CP-FCV).


(MDB) and the pre-treatment control panel (CP-PT)


(MDB) and the two control panels of the settling tanks. (CP-ST1) and (CP-ST2)

7. Supply, install, test and commission all power cables between the pre-treatment control

panel (CP-PT) and the related local control panels.

8. Supply, install, test and commission all branch power cables between the settling tanks

control panels and the related machines such as mixers and scraper.

9. Supply, install, test and commission all branch power cables for all electrical panels, devices,

motorized gates, actuated valves and package units …etc from the related control/local

control panels.


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10. All power cables installed inside water shall be submerged, rubber type suitable for

submersible purposes.

11. Cables inside electric and pumps rooms (if any) shall be installed in concrete trenches.

When cables leave the trench and connected to the terminal box of the motor, they should

be installed on galvanized cable ladder or galvanized covered cable tray.

12. Main power cable from the existing power supply to the main distribution board shall be

multicore, copper conductor, XLPE insulated, steel wire armoured, and PVC sheathed.

13. Indoor power cables shall be multicore, copper conductor, XLPE insulated, and PVC

sheathed non armoured.

14. Outdoor power cables shall be multicore, copper conductor, XLPE insulated, and PVC

sheathed non armoured.

15. All outdoor power cables shall be installed inside UPVC pipes.

16. All indoor and outdoor cable supporting systems such cable ladders, cable trays, cable

trunks, PVC and galvanized conduits shall be included in the price of the cables.

17. Contractor shall use suitable software and submit voltage drop, short circuit and cables

sizing calculations for all electrical loads taking into consideration that the voltage drop

shall not exceed 4%.

g. Control, Signal and Instrumentation Cables

Supply, install, test and commission all control, signal and instrumentation cables between the

motors, pumps, mixers, instruments and measuring devices and the related electrical and PLC

panels.

h. Trenches for Power Cables

1. Indoor concert trenches shall be used to install power cables between the control panels

and the related motors. These indoor concrete trenches shall be covered by galvanized

chequer plates.

2. Outdoor cables trenches shall be constructed including excavation with size (Depth X

Width) (80X60) cm, laying of cables inside100mm UPVC conduits, add soft sand below

and above the UPVC conduit, solid concrete blocks, warning tape, and finally compacted

backfilling.

i. Electrical Manholes

Construct electrical concrete manholes (80x80x80) dimensions for outdoor installation cables with

medium duty steel covers. Spacing between manholes shall not be more than 50meters.

j. External Lighting

1. Supply install test and commission external lighting poles along the access road to the weir.

2. Supply install test and commission external lighting poles along the safe walkway for the

workers to access the wear.

3. Supply install test and commission external lighting poles around the new process

structures such as the Distribution Chamber, Coagulation Chambers, Flocculation

Chambers, Settling Tanks and other needed locations.


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4. Contractor shall prepare external lighting design for the above-mentioned locations and

roads using 7 meters height lighting poles with 100watt LED luminaire. The spacing

between lighting poles shall be 25 meters.

5. Supply install test and commission external lighting control panel (ELCP) including main

MCCB incomer, number of outgoing MCCBs with rating not less 25 Amp., contactor,

photocell, and timer with 3-way selector switch (Manual, Off, Automatic). Each circuit shall

serve 10 lighting poles as maximum.

6. The ELCP shall be supplied by power from the main distribution board using 4x16 mm2

CU/XLPE/PVC cable inside 50 mm UPVC conduit.

7. Supply install test and commission power cables with size not less than 4x16 mm2

CU/XLPE/SWA/PVC from the ELCP and poles and between the lighting poles.

k. Lighting Calculations

Lighting calculation software (DIALux) shall be used for the external lighting to determine the adequate number of lighting fixtures and verify the LUX level. Instruments and Measuring Devices Supply, install, test and commission all needed measuring devices such as flow meters, level

meters, pressure transmitters, flow switches etc. All power and control wiring between these

devices and their related panels and PLC shall be provided and executed by the Contractor. All

instruments shall be supplied by power from the UPS of the related control panel. The following

instruments shall be installed:

1. Pressure transmitter (4-20 mA) on the main suction pipe of each set of pumps.

2. Pressure transmitter (4-20 mA) on the main discharge pipe of each set of pumps.

3. Pressure transmitter (4-20 mA) on the suction pipe of each pump.

4. Pressure transmitter (4-20 mA) on the discharge pipe of each pump.

5. Flow switch on the suction pipe of each pump.

6. Radar level or laser level meter for each chamber, tank, reservoir …etc.

l. Valves /Gates with electrical actuators

Some valves /gates are electrically operated and equipped with electrical actuators as per the

mechanical drawings and details. All power and control wiring between these actuators and their

related panels and PLC shall be provided and executed by the Contractor.

Each valve/gate actuator must incorporate local controls for Open, Close and Stop operation

and a Local/Stop/Remote mode selector switch and working as follows:

1. Local mode: The valve can be opened/closed from the site only via local controls.

2. Stop mode: The valve is stopped, and no action can be done either locally or remotely.

3. Remote mode: The valve can be opened/closed via SCADA selector soft key (Auto,

Manual).and shall have two options:

● Option 1: In the Remote mode, and the SCADA selector soft key in Auto mode, the

valve shall be opened/closed automatically according to the operation of the pump or

manually via SCADA selector soft key.

● Option 2: In the Remote mode, and the SCADA selector soft key in Manual mode,

the valve shall be opened/closed manually by the SCADA operator.

m. Other Electrical Works


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Any other electrical works not described above but deemed necessary for the satisfactory

completion of the works. Contractor to specify, detail and submit breakdown for these items and

works.


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5. SITE WORKS AND LANDSCAPE

This section addresses design principles and criteria adopted to ensure a safe and efficient site for

site components, vehicular and pedestrian traffic. Storm water runoff management must be

effectively incorporated into the project for irrigation and harvesting.

The following are site components to be considered during the design stages:

5.1 Roads

5.1.1 Roads and Site Grading Requirements

The contractor shall be committed to the technical requirements of roads and grading work, as

per the following:

● The design of roads shall be carried out utilizing as a guide, the "Policy of Geometric

Design of Highway and Streets – AASHTO 2011".

● The general specifications for road and bridge construction shall be those of the Ministry

of Public Works and Housing (MPWH) "Specifications for Highway and Bridge

Construction – 1991". Special specifications should be prepared to account for

modifications/additions to the general specifications.

5.1.2 Geometric design

The geometric design criteria to be adopted for road design shall be:

● Design speed:

- 30km/hr min (lower speeds may be selected depending on available right of way,

pedestrian presence, adjacent development, and other area controls. All design elements

should encourage speeds generally not exceeding 50 km/hr.

● Sight distance:

- Stopping sight distance should range from 30 to 60 m depending on the design speed.

Design for passing sight distance is not applicable.

● Grades:

- The minimum longitudinal grade for roads should not be less than 0.3%. Max's grades

should not exceed 5.0%.

● Cross fall:

- As a guide, the normal cross fall (slope of the surface of the carriageway measured

normal to the centerline) should not exceed 2.0%. In wide parking areas and queuing

areas, the minimum cross slope shall be 0.5%.

● Super elevation

- Curves should be designed for a maximum super elevation rate of 2.0%. A rate of 4.0%

may be used when it is absolutely necessary.

- Width of roadway: The carriageway shall have sufficient width to meet the needs of the

future vehicle and pedestrian traffic. The minimum lane width shall be 3.6m for cars and

buses, and 4.0m for trucks. Where curbstone is used at the edges of the carriageway,


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then the curb should be offset by 0.3m on the left edge and 0.6m on the right edge

where no parallel parking is provided.

- The road reserve will be designed to take account of the location of existing and future

services, including drainage, overhead and underground utility services, and road

furniture including signs and lighting.

● Intersection design:

- The vehicle turning path design shall be specific to each intersection.

- The design shall cater to the future vehicle configuration. As a guide, the AASHTO WB-

19 shall be considered as a design vehicle.

5.1.3 Pavement and Materials

Pavement design: Road pavements shall be of the flexible type (asphalt concrete surfaces and

aggregate bases). The design shall be based on the "AASHTO Guide for Design of Pavement

Structures". Other methods may be used subject to the approval of the Employer.

The pavements layers shall include the following:

✔ Wearing layer a minimum thickness of 6 cm.

✔ Binder layer a minimum thickness of 7 cm.

✔ Base layer a minimum thickness of 20 cm.

✔ Subbase layer a minimum thickness of 20 cm.

✔ Topping layer a minimum thickness of 30 cm, (According to MPWH specification).

5.1.4 Roadside furniture

Marking and signing for roads shall conform to the "Manual on Devices & Manual on Traffic

control – 2003" issued by the Ministry of Public Works and Housing, and MUTCD if needed.

Guardrail shall be proposed at culverts and high fill sections more than 2m.

5.1.5 Surveying

The Contractor shall carry out a detailed topographical survey of the site prior to the detailed

design.

The survey works shall be as follows:

For roads:

▪ Projection the alignments of roads on the site, then adopt the survey work as section per

10m and the length of the section should be 30m.

For areas:

▪ Shall be a mesh with a grid of 10m.

▪ The Contractor will be responsible for the design details within the above technical

requirements. The technical requirements used in the design of roads, pavement,

grading, and earthworks, shall conform to the latest techniques while ensuring the use

of locally available materials. At all times a balance must be kept between capital and


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maintenance costs.

▪ In cases where the Contractor feels the need to adopt other international and regional

design standards, the supervision will be consulted for approval after presenting

adequate explanations.

▪ The International and regional specifications that may be consulted will include:

▪ AASHTO (American Association of State Highway and Transportation Officials);

5.1.6 British Standards.

Finally, the design standards for the different roads will be developed for discussion and approval

of the Engineer and Employer.

Parameters of particular importance will be:

5.1.7 Road type

▪ The degree of improvement required for existing horizontal and vertical alignment for

the existing road at the junction (if needed);

▪ Geometric layout of junctions;

▪ Safety measures to be introduced;

▪ Materials for construction;

▪ Roadside furniture.

5.1.8 Design of Vertical and Horizontal Alignments

The data captured during the field topographical surveys will be further processed by computer-

aided methods by Road Design software such as Civil 3D, in order to determine the existing

horizontal and vertical alignment parameters for the proposed design of the road in addition to

super elevation data, roadway templates incorporating widenings where required. The proposed

horizontal alignments will be detailed and calculated according to the design standards approved

by the Supervision.

In designing both the vertical and horizontal alignments, the Contractor will make sure to obtain

the optimum solution which will be in accordance with the required design standards and will take

into consideration factors such as climate, aesthetics, and costs.

Cross-sectional data perpendicular to this alignment will be derived from a 3D TIN (triangulated

irregular network) created from the X, Y, Z elements of the topographic surveys input into the

software. Accordingly, the vertical alignment will be calculated taking into consideration the

proposed drainage culverts.

The Project Director and the Highway Engineer would then modify this alignment to conform to

the proposed design parameters and present it to the Supervision for discussion and approval.

5.1.9 Pavement Design

Upon completion of the traffic assessment exercise (as explained later in this chapter) and with

the knowledge of the quality of naturally occurring gravels available, the in-situ subgrade


29

characteristics, and the axle load restrictions applicable in Jordan, the Contractor will undertake

the pavement design taking into account inter-alia, the following important criteria:

▪ the pavement design must give the most appropriate solution at minimum cost and

based on local terrain, soil conditions, and vertical alignment;

▪ the pavement must be sound and balanced structurally to withstand the heavy load the

minimum applicable WB-12 regarding AASHTO;

▪ The pavement design must make full allowance for upgrading to meet the traffic growth

during its economic life, and minimum design life shall be 20 years.

5.1.10 Design Output

The output of the preliminary designs will be presented as follows: -

▪ Maps showing topographical survey strips containing the alignments.

▪ Road plans and profiles to a scale of 1:1000/1:100 (or as agreed with the supervision)

showing the proposed road center lines including the horizontal curve details, the road

longitudinal profiles, chainages of the cross-sections, drainage structures, right of way,

etc...

▪ Typical cross-sections showing the different dimensions and pavement.

▪ Cross-section drawings to a scale of 1:100 (or as agreed with the supervision).

▪ Bridges and culverts 1:100 (or as agreed with the supervision).

▪ Service utilities within the ROW needed to be relocated or protection.

5.1.11 Site Clearance and Earthworks

The contractor shall remove the materials and dispose of contaminated soil to the places

permitted by the competent authorities and according to their instructions.

Grading only those areas impacted by buildings, parking lots, and access roads are preferred. Provide construction staging areas to facilitate construction operations. Consider soil types, topography, etc. necessary to economize on construction costs in the design.

5.1.12 Storm Water Drainage

The contractor shall ensure that all roads are accessible and no rain water reaches any project

structure under the design storm. Storm water shall be conveyed safely, in either closed or open

conveyance systems, and be disposed properly to a natural water course outside the project site.

5.1.13 Design Rainfall Intensity

The design rainfall intensity shall be 41mm/hr.

5.1.14 Permitted water depth

Water depths in the roads shall not exceed 5cm at the design storm.


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5.1.15 Conveyance structures

Conveyance structures shall be designed with a 65% of its maximum capacity under the design

storm period.

5.1.16 Minimum and maximum velocities

The minimum conveyance velocity shall be 1.0m/s under the design storm flow rate and the

maximum shall not exceed 3.0m/s.

5.1.17 Entrance and outlet protections

Proper entrance and outlet protections shall be designed to avoid erosion or scour.

5.1.18 Rainfall-Runoff Modelling

The Rational Method shall be adopted to determine the peak discharges of runoff for the sub-

basins. This relation is presented in the following equation:

Where:

▪ C = The Runoff Coefficient, taken to be 0.8

▪ I = The Design Rainfall Intensity [mm/h]

▪ A = Catchment Area [km2]

▪ Qp = Peak flow rate (m3/s)

5.2 Existing Structures

All opening in existing walls should be done by specialist using professional techniques, but not

manually, and should be treated to prevent leakage.

All tie-ins and connections to existing piping and equipment should be done by specialists using

professional techniques.


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6. Project Stages

The Execution of the project is expected to follow the suggested outline as below in order to achieve the

project objectives. The Contractor is free to suggest the project stages that satisfy his work flow.

Stage 1: Data Gathering, Site Survey and analysis

● The Contractor shall visit the site, make the necessary investigation, coordinate with all concerned

authorities to get their requirements and collect all data needed for the design and successful

implementation of the system.

● The Contractor shall carry out a data gathering and a site survey in accordance with the given (by

the employer) and/or available data, to include all the existing systems, to satisfy himself with

respect to the nature of the works required as per this document, the Contractor shall be fully

responsible for the analysis and results. All assumptions depending on these results and the

consequences of these assumptions either regarding the cost, resources, time or others, on which

he builds his rates and expecting problems he may face, will be the Contractor’s liability. The

Contractor will submit a comprehensive report and Survey results and assumptions, subject to the

Employer/Engineer approval. Noting that the data given are for guidance only, it is the

Contractor’s responsibility to verify the given data.

● The Contractor shall liaise with the following authorities, among others, to obtain the necessary

information, permits, approvals and permissions to implement the Works:

- Liaison with all ministries and authorities who have jurisdiction in relation to the execution of

Works, e.g. Ministry of Public Works and Housing, Amman and Madaba Municipalities, the

Army, Traffic Department and Telecommunication Companies, Telecommunication

Regulatory Commission, Jordan Standards and meteorology Organization… etc.

- Ministry of Public Works and Housing have their regulations and standards that regulate Road

Detours, Excavations, Backfilling and Reinstatement within roads and street corridors, the

Contractor shall bear the full responsibility to know, understand, implement and follow these

rules and standards during designing and executing works.

● Site survey requirements:

a. Carry a full field survey to know existing condition of current existing components.

1. Gathering and collecting information and data about the existing conditions.

2. Submit a proposed plan for carrying out a detailed survey.

3. Start field study to investigate the current existing components and operational supply

procedures.

4. Prepare a full survey report and documents for the field study infrastructure of the

existing conditions with coordination with Miyahuna.

5. The survey documents shall include the cost of maintenance (if any).

b. Carry a full survey study

1. The study shall include all calculations.

2. Prepare a full survey report and documents for the study.

3. The study document shall include the following but not limited to:

i. Detailed network architecture drawing (site coordination, data rate…etc.).

ii. Equipment distribution.

iii. General description.

iv. Site survey result.


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Stage 2: Design Stage

In this stage; the role of the Contractor includes but not limited to:

a) Identify key technical constraints.

b) Identify the risks.

c) Complete the Employer’s Requirements.

d) Utilize the available information, data, drawings and specifications and the results of the

previous stage.

e) Prepare the drawings and the works to be done in the implementation stage.

Stage 3: Execution Stage

Requirements

The Contractor shall fulfill the following requirements and submit the following documents prior to the

execution of the Works. The following are main requirements, any further detailed processes or

requirements, which counted as part of good practice, shall be considered to be part of the Contractor

obligations and shall be deemed to be included in his total price.

- Approved Design

- Approved method statement of the works to be implemented.

- Design drawings for the treatment system

- Proposed Work Program.

- Materials Submittals subjected to the Employer Approval.

- Design of any structural component.

● Contractor responsibilities during the execution phase listed but not limited to :

- The contractor shall take in his liability to reserve the existing assets within the work field.

- Any new findings - unseen during the design stage - shall be reviewed.

Environment, Health and safety requirements

- The Contractor shall be responsible for safety and protection of the environment. Safety in this

context refers to the health and safety of people and the protection of the environment.

Nothing contained herein relieves the Contractor from complying with all applicable National

standards and regulations.

- The Contractor shall have an EHS Representative (also known as Safety Officer or SO),

approved by the Employer, present on the Project at all times when Work is physically being

performed. The SO may have other minor duties, but the position’s primary role is to oversee

safety of the worksite and Work being performed by the Contractor, as well as that of his

Subcontractors. If shift work will be utilized, the Contractor must have a SO for each shift. In

the case of shift work, the Contractor will designate one SO as the lead for the Project.

- The Contractor shall have a documented Site Specific Contractor Environment Management

Plan (EMP) in place which shall be subject to the approval of the Employer/Engineer before

work will be authorized to start. This plan must be consistent with the requirements in the

Employer’s Contractor Safety Policy, national regulations as well as Environmental Impact

Assessment study for the Project.


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Submittals

The Contractor shall submit all descriptive information that will enable the Engineer to determine whether

Contractor’s proposed materials, equipment, and Work methods are in general conformance to the design

concept and in accordance with the Drawings and Specifications. The information submitted may consist

of drawings, specifications, descriptive data, certificates, samples, test results, product data, and such other

information, all as specifically required in the Drawings and Specifications. In some instances, specified

submittal information describes some, but not all features of the material, equipment, or Work method.

Procedures:

A. Direct all submittals to Engineer unless specified otherwise.

B. Transmittal of Submittal:

1. Contractor shall be responsible for the accuracy and completeness of the information

contained in each submittal and shall ensure that the material, equipment, or Work method

shall be as described in the submittal.

a. Contractor shall verify that all features of all products conform to the requirements of the

Drawings and Specifications.

b. Contractor shall ensure that there is no conflict with other submittals and notify Engineer

in each case where its submittal may affect the work of Employer or others.

c. Contractor shall ensure coordination of submittals among the Subcontractor(s).

2. Contractor shall complete, sign, and transmit with each submittal package, one Transmittal of

Contractor’s Submittal form in a format approved by Engineer.

3. Submittal Identification shall include; Project information, date, a serial number, specification

section applied, name of vendor or subcontractor, if there is deviation from specification or

drawing it should be indicated.

C. Format:

● Submittals regarding material and equipment shall be presented directly to the Engineer and be

accompanied by a transmittal form. A separate form shall be used for each specific item.

Submittals that are related to or affect each other shall be forwarded simultaneously as a package

to facilitate coordinated review. When catalogue pages are submitted, applicable items must be

clearly identified.

● Submittals that do not have all the information required, including deviations, are not acceptable

and will be returned without review.

D. Timelines: Schedule and submit in accordance with the Execution Schedule, and requirements of

individual Specification sections.

E. Effect of Review of the Contractor’s Submittals:

● Review of Shop Drawings, data, Work methods, or information regarding materials or equipment

the Contractor proposes to provide shall not relieve the Contractor of the responsibility for errors

therein and will not be regarded as an assumption of risks or liability by Engineer or Employer, or

by any officer or employee thereof; and the Contractor shall have no claim under the Contract on

account of the failure or partial failure of the Work methods, materials, or equipment so reviewed.

● Approval on submittals will mean that Employer has no objection to the Contractor, upon his own

responsibility, using the Work method proposed, or providing the materials or equipment

proposed.


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Training

The theoretical training and site work are expected to provide the Employer Staff with the relevant

background, skills and hands-on experience to enable them to operate the new system sufficiently.

The contractor shall provide the training plan for the Employers approval that includes training on all

project activities covering the operation, maintenance. The training sufficient to enable utility personnel to

adequately operate and maintain the system.

The contractor shall provide all the necessary documents and manuals needed at the end of the execution

stage, including (3 copies):

1. Operation and Maintenance manual.

2. Final Design.

3. As-Built Drawings.

Stage 4: Commissioning

The comprehensive period of commissioning will start after the execution of all works and stages according

to the employer’s requirements, and will be conducted during the first rainy season after completion of

execution stage for all project components.

Before the commissioning period, the contractor according to the employer instruction and requirements

in this tender shall define measuring points to conduct tests and measurements at completion according to

FIDIC Terms of Contract, and these measurement points shall measure the performance indicator in terms

of quality, quantity of the water produced. These will be the base for contractor’s variable fee as stated in

the pricing schedules during the Operation Period.

In the event of any system failures, Penalties will be applied as illustrated below:

Failure of settling basin to achieve a minimum of 90% turbidity removal after flooding event & causing

stopping or interruption of water supply from Wadi Zarqa’a Ma’in to various locations with required

quantity & quality (During the first rainy season after completion of execution stage for all project

component) will cause non-release of the retained percentage values 30% (a) (in volume 1, section 4,

schedule of payments)

The Contractor shall provide a full written report to the Employer, notifying them of a defect or system

problem within 2 working days and after solving the problem.

Stage 5: Operation

The contractor shall operate the entire plant according to the employer requirement for 2 consecutive rainy

seasons- the rainy seasons are defined to be the months from October to March of these years, and the

effluent water produced shall comply with the requirements set by the employer in this tender. Otherwise,

the Performance Damages (Penalties) will apply.

As the contractor is responsible for the Commissioning which will be for a period of 2 years operation with

no significant fault occurring. The contractor operational staff in coordination with Miyahuna staff will

monitor this period.

In the event of any system failures during operation, Penalties will be applied as illustrated below:

Performance Damages:

2.50 JD penalty for each m3 didn’t achieves a minimum of 300 NTU turbidity value


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Output Based KPI's

NO KPI name KPI

description KPI [maximum] KPI tolerance

KPI measurement/ testing methodology

1 Turbidity Level the turbidity measurement

300 Max 99 turbidity measurement

device

The Bidder hereby guarantees that his/her Bid ensures compliance with these KPI values. Failure to reach

those will impact the Contractor’s payment under Schedule of Payments, and will make the Contractor liable

to pay damages to the Employer in accordance with the provisions [Performance Damages] to the Particular

Conditions of Contract and GCC Sub clause 12.4 [Failure to Pass Tests after Completion].

INSPECTION AND REJECTION

Factory acceptance test (FAT) – If applicable

The contractor is requested to provide after awarding three options for accredited international third party

companies for any required material used in the project; Miyahuna will choose one of them to perform the

needed inspections.

The contractor is requested to call the chosen company to attend and witness the tests to be done at the

manufacturer’s testing premises or any place the manufacturer chooses after the approval of the Employer

and the accredited third party. The third Party representative must ensure 100% complete matching and

compliance between the product and what is required in tender/contract documents in terms of standards,

specifications and conditions.

The pre-shipment and manufacturer inspection is obligatory and cost for travelling of the appointed

member from the Employer as follows

1. (3 persons) for water meters.

2. (3 persons) for valves.

“the pre‐shipment inspection is obligatory and the full cost for travelling for Miyahuna representatives

("Overseas Pre shipment and inspection for engineers for a week, with all related expenses including Visas

arrangements and costs, hotels transportation and all related fees taxes airfare tickets and per diems equal

to one hundred fifty JD per day for the staff and 250 JD for top management , director or CEO per day

") shall be borne by the supplier/contractor and shall be incorporated in the tender prices.

Site acceptance test (SAT)

The Contractor shall provide full Site Acceptance Tests on completion at the end of the execution stage

and/or Sub-stage. Any special test equipment relevant to the SAT shall become the property of the

Employer at the end of project.

Documents

TENDER DOCUMENTS Volume III General and Technical …