Landscape Works Requirement

Nakheel Landscaping Management Regulations 01 revision 1 – Contractors Requirements – Oct. 05. p. 0 of 50

Environment & Landscaping Department

LANDSCAPE REGULATIONS LMR 01 Revision 01

Contractor Requirements

November 2005

LANDSCAPE MANAGEMENT REGULATIONS


CONTENTS

1. INTRODUCTION 3

1.1 Nakheel’s Commitment to Quality Property 3

1.2 REGULATION Objectives 3

1.3 Compliance with other Complementary Policies and Guidelines 4

1.4 Definitions 4

2. PREQUALIFIED LIST OF LANDSCAPE CONSULTANTS AND CONTRACTORS 5

3. SOFTSCAPE 5

3.1 Planting Material: 5

3.1.1 Soil 5 3.1.2 Potting Soil & Compost 6 3.1.3 Organic Fertilizer 6 3.1.4 Peat moss 6 3.1.5 Soil Moisture Retention Additives 6

3.2 Plants: 7

3.2.1 Type of Plants 7 3.2.2 Plant Specifications 8

3.3 Health Conditions: 9

3.4 Planting: 9

3.4.1 Planting Medium& Soil Mixing 9 3.4.2 Planting Sequence 9

3.4.2.1 Bed Preparation 9 3.4.2.2 Grading 9 3.4.2.3 Setting Out 9 3.4.2.4 Planting Pits 9 3.4.2.5 Backfilling 10 3.4.2.6 Edging 10 3.4.2.7 Gravel 10 3.4.2.8 Transplanting 10 3.4.2.9 Stakes 10

3.4.2.10 Plant Ties 10 3.4.2.11 Watering 10

3.5 Fertilizers: 12

3.6 Mulch: 12

4. IRRIGATION 12

4.1 Trench Excavation 12

4.2 Pipes and Fittings 12

4.3 Underground Warning Tape 13


4.3 Emitters 14

4.5 Bubblers 14

4.6 Pop up Sprayers 15

4.7 Rotor Sprinklers 15

4.8 Valves 16 4.8.1 Solenoid Valve 16 4.8.2 Gate Valve 17 4.8.3 Quick Coupling Valve 18 4.8.4 Check Valve 18 4.8.5 Air Valve 18 4.8.6 Electrical Actuator Butterfly Valve 19 4.8.7 Pressure Relief Valve 19 4.8.8 Wash-Out Valves 19

4.9 Valve Boxes 19

4.10 Thrust Blocks 20 4.11 Head Unit 20 4.11.1 Pumps 20 4.10.1.1 Main Pumps 20 4.10.1.2 Sump Pumps 21 4.11.2 Pressure Vessels 21 4.11.3 Filters 21 4.11.4 Basket Strainer 22

4.12 Electrical Equipment 22

4.13 Field Controllers 22

4.14 Central Control System 23

4.15 Electric Wiring 24

4.16 Irrigation Quantities 25 4.17 Irrigation System Testing 26

4.18 Automatic Irrigation System Commissioning 26

5. MAINTENANCE 27

5.1 General 27

5.2 Requirements 27

5.3 Approved Chemicals 28

5.4 Irrigation Water Budgets 28

6. SCHEDULE OF PENALTIES 29

APPENDICES

1. List of Prequalified Landscape Contractors 33 2. List of Safety and Precaution measures 35 3. List of Suitable Plants 39


1. INTRODUCTION

1.1 Nakheel’s Commitment to Quality Property

Nakheel believes that its developments are more about people than property. Nakheel is thus

committed to the development of landscapes in their property that is constructed to the highest

standards of living and that provides its occupants with a healthy, enjoyable and sustainable

environment. This commitment involves joined efforts by all stakeholders to ensure pleasant

community atmosphere through quality landscapes that provide amenity and added value to property

while enhancing the ecosystem and conserving its precious resources. To ensure that this commitment

is met, Nakheel has thus established the Landscape Management Regulations (LMR) that seeks to:

• Guarantee highest standard procedures are followed by Landscape Contractors during execution

of Landscape Projects in Nakheel properties.

• Provide a comprehensive list of acceptable materials to be used in Nakheel projects.

• Ensure full compliance with drawings, specifications and general terms and conditions of the

contract.

• Ascertain that minimal impact or disturbance is inflicted on other stakeholders in the property.

• Identify key construction issues during the course of project execution and learn from it for future

developments.

• Promote sustainable development by implementing programs and technologies that promote

pollution control, resource conservation and ecosystem monitoring, research and enhancement;

It is our belief that all tenants want to live in and enjoy a clean and pleasant environment. Nakheel’s

commitment to safe, clean, enjoyable and livable communities’ means holding all people involved

accountable for delivering and maintaining this quality. Consistent with this philosophy, a penalty

system is described in Section 6. The purpose of the penalty system is to promote compliance with the

guidelines and thereby protect quality within and around Nakheels’ developments.

1.2 Regulation Objectives

The main objective of this regulation is to ensure that all contractors in Nakheel projects are in

accordance with existing regulatory requirements. In particular the primary goals of the regulations are

to:

• Formulate comprehensive work instructions and material specifications to be adopted by contract

personnel for the protection of the quality of deliverables,

• Take action to eliminate or minimize risks of harm to local ecosystems,

• Assure the protection of the environment based on sustainable development principles,

• Provide a better quality of life for tenants and visitors to the completed development,

• Develop a system for implementing the regulations.


It is recognized that these regulations will be subject to periodic review when necessary. This review

shall allow the incorporation of any unforeseen operational changes, especially during the early stages

of occupation of the various projects in addition to incorporating up-to-date technologies and

techniques.

1.3 Complementary Policies and Guidelines

These regulations are complementary to, but do not substitute, the following corporate regulations and

guidelines when applicable:

• Nakheel Environmental Guidelines 1, 2, 3 and 4

• Ports, Customs and Free Zone Corporation (PCFC) Environment Control Rules and Requirements –

Third edition 2003;

• PCFC Health and Safety Regulations and Standards – Second Edition 2003;

• Jebel Ali Free Zone (JAFZA) Planning & Construction Planning Regulations – Third Edition, 2003;

• Dubai Municipality Technical Guidelines – various guides and versions.

1.4 Definitions

The terms applied in this policy are defined as follows:

Tenant: Party or parties residing on or occupying the property (Residential and Commercial).

Nakheel Authorities: Nakheel Environment and Landscaping Department (NELD).

All other authorities including Dubai Municipality (DM) and the Group Environment, Health, Safety and

Security (EHSS) Department of the Ports, Customs & Free Zone Corporation shall be contacted through

NELD.

Local Authorities: Local government authorities including DM, DEWA, Ministry of Agriculture and

Fisheries, FEA, etc.

Schedule of Penalties: List of fines per respective violations to this policy.

Engineer: Client/Client representative Site Supervisor/Engineer.

Staff: Contractor’s Manpower on the site

Personnel: Contractor’s Employee on the site


2. PREQUALIFIED LIST OF LANDSCAPE CONSULTANTS

AND CONTRACTORS

Nakheel follows standard PCFZ procedures in tendering for its projects. All consultants /

contractors have to be prequalified and approved by Nakheel. Appendix A lists prequalified and

approved consultants / contractors for Nakheel projects.

3. SOFT LANDSCAPE

3.1 Planting Materials:

3.1.1 Soil: Soil shall be obtained from well-drained arable land. It shall be free draining, non-toxic and

capable of sustaining healthy plant growth. Soil shall contain very limited amounts of minerals and

dissolved salts deemed toxic or harmful to plants and their growth including carbonates and

bicarbonates, chlorides, sulfates, heavy metals, etc. The total level of such material (TDS) shall not

exceed 250-350 ppm. Soil shall not contain subsoil, refuse, roots, noxious weeds, phytotoxic

materials, rocks, sticks, brush, litter, construction debris or any other deleterious materials.

The soil shall have the following characteristics:

1. PH to be 6.0 to 7.5 of saturated soil.

2. EC < 2500 mmhos in saturated extract.

3. Chlorides < 220 ppm in saturated extract.

4. Sulphates < 15 ppm in saturated extract.

5. Sodium Adsorption Ratio (SAR) < 5%.

6. Nitrates < 75 ppm in saturated extract.

7. Phosphorus 10-25 ppm in 1.5 % ammonium nitrate, 1 hour shake.

8. Potassium 100-400 ppm in 1.5 % ammonium nitrate, 1 hour shake.

9. Magnesium 25-100 ppm in 1.5 % ammonium nitrate, 1 hour shake.

10. Boron < 1 % ppm hot water soluble.

11. Free carbonates < 0.5 % air dried soil.

12. Exchangeable Sodium < 15 % in neutral normal ammonium extract.

13. Organic matter in the form of sphagnum peat shall meet the recommendations set by the

suppliers of the soil moisture amendments.

14. Percent composition as follow:

• Sand (2 mm to 0.05 mm) 70-85% max. • Silt (0.05 mm to 0.002 mm) 25-30 % max. • Clay (< 0.002mm) 5% max.


3.1.2 Potting Soil / Compost:

Compost shall be of highest potting soil quality from a source approved by UAE Ministry of

Agriculture and Fisheries and/or Dubai Municipality.

3.1.3 Organic Fertilizer:

All organic fertilizers shall be balanced and certified fertilizer with 40-50% Organic Matter (OM), PH

6-7, smell- free and retains moisture up to 30% of its weight. It shall be heat treated and free of

weeds, nematodes, Fusarium, bacteria and any other harmful micro- organisms. Samples of

organic fertilizer to be used must first be submitted to ̎ NELD ̎ for approval or must be supplied

from the following approved suppliers:

• Emirates Bio Fertilizer Factory Al Sidira Fertilizer Factory

• Al Bayader Fertilizer Factory

The organic fertilizer shall be applied as per the following quantities:

• Palm pits 35 Kg (Post-application) Trees 25 Kg / tree pit.

• Shrubs 5 Kg / shrub Ground cover shrub and turf beds: < 8 Kg / m2.

3.1.4 Peat moss:

Peat moss shall be coarse white or brown sphagnum peat conforming to BS 4156, free of woody

materials and of mineral matter as sulfur and iron and shall have a PH value between 4 and 5 and

delivered air free. Organic matter is 95-99 weight % (dry) and has a water holding capacity

between 45-55%.

3.1.5 Soil Moisture Retention Additives:

The use of Soil Moisture Retention Additives is highly encouraged as water conservation is a

priority. In the Tender process, use of those additives shall be guaranteed by the tenderer in terms

of a percent irrigation water use reduction over a specified period of time. Approved amendments

shall acquire the following:

• Provide soil with high water holding/ retention/ absorbing capacity particularly in sandy and

saline soils when incorporated in them.

• Have a quick soil wetting ability and a long lasting (at least 5 years) stability in the soil

resisting fast natural degradation processes.

• Be environmentally friendly with no short or long term impacts on the environment, non

toxic and non-hazardous to any ecosystem, soil organisms, humans, animals and

underground water.


• Shall not contain levels of any element above those specified in the rules and regulations of

local authorities particularly heavy metals.

• Not hinder plant nutrient uptake or interfere with / affected by application of fertilizers,

pesticides or any treatment whether chemical or biological.

• Belong to one of the following categories: 1. Organic co-polymers, 2. Acrylamides, 3.

Acrylic polymers, 4. Volcanic ash/Basaltic volcanic parent material, 5. Amorphous silica or 6.

Coated silica.

• Have a minimum absorption capacity of 75-100 ml water/ gm of material with a minimum

of 85-90% available as plant water.

• Reduce irrigation water consumption by a minimum of 45%.

The following products have been tested and approved by NELD. Any product suggested by

contractors must obtain approval by NELD before application. Contact details of suppliers of those

materials can be obtained from NELD:

• Sanoplant and the associated electro-kinetic technology Sanonet

• Zeoplant

• Stockosorb

• Zeolux

3.2 Plants:

3.2.1 Type of plants:

Precaution is taken to ensure a harmonious integration among selected plant species as well as

their layout in the Masterplan design. The design allows for organic blending between public and

private landscapes which while preserving a congruent feeling in the outer / public landscapes, it

provides the freedom for choice in the inner / private landscapes. Accordingly, strict compliance

shall be followed with the specifications in terms of species, dimensions, age and conditions of

recommended plants.

The use of local indigenous species is preferred and recommended to consultants; however, the

introduction of new adaptive species that add variety and value is encouraged. Appendix B lists an

array of adaptive plant varieties. Contractors shall ensure that:

• Avoiding the use of plants sensitive to local weather condition or reducing them to

minimum. For example Rhoeo discolor and Lantana camara are both sensitive to high

temperature and wind.

• Avoiding the use of Spiny plants such as Yucca & Agave at the pedestrian crossing and

walkways.


3.2.2 Specifications:

The following specifications shall be met for each plant category:

Palms, Ornamental Trees and Shrubs:

• All trees/shrubs shall be obtained from an approved source.

• Height and girth of trees/shrubs shall match the specifications in the tender documents.

• Trees/shrubs shall have a clear straight stem.

• Trees/shrubs shall have at least 3-4 main branches.

• Stakes that are painted green shall support all plants.

• All plants shall be held to stakes by ties of fabric webbing with a UV resistant plastic

adjustable buckle.

• All saw cuts shall be clean, free from any ripping or splitting and shall be trimmed smooth

after cutting.

• Trees/shrubs to be well balanced and well formed sound, vigorous, healthy and free of

disease, sunscald, abrasion, harmful insects or insect eggs and with a healthy, un-broken

root system.

• Only nursery-grown plants shall be used.

• All trees/shrubs shall be container grown with the exception of mature palms.

• Shrubs shall be multi stemmed.

Ground Covers, Seasonal Flowers, Cacti & Succulent Plants:

All plants shall be evenly balanced to allow equal growth in all directions and have fully

developed root system and leaves. Ground covers shall be multi-stemmed.

Seasonal flowers for Autumn/ Winter planting shall be hybrid variety and include but not

limited to:

• Petunia Gazania Antirrhinum

• Ageratum Marigold

Seasonal flowers for Spring/ Summer planting shall be hybrid variety and include but not

limited to:

• Celosia Portulaca garandiflora Gazania

• Zinnia Vinka rosea

Lawns:

In general locations, stolons of lawns shall be of a salt tolerant variety such as Paspalum

vaginatum or saltine or any other variety that is more stress tolerant. Sprigs shall be 50-75mm

length with 3-6 buds. Bermuda grass shall be used in Golf courses as per exact consultant

specifications.


3.3. Health Conditions:

All plants shall be vigorous and healthy. Plants and materials to be incorporated in the planting

process shall be free of pest and diseases and sourced from certified locations.

3.4 Planting:

3.4.1 Planting Medium and Soil Mixing:

Soil components of the planting medium (section 3.1) shall be mixed thoroughly and evenly and

specified soil additives shall be added at the specified rates and mix. The medium shall be mixed

mechanically by an approved method to create a homogeneous mixture. The planting medium

should be mixed prior to placement and stockpiled on site for test sampling and approval.

3.4.2 Planting Sequence:

3.4.2.1 Bed Preparation:

Prior to spreading of any soil mix, the sub-grade shall be raked, leveled and cleared of all debris

and rock to reveal a smooth clean sub-base at levels required to accommodate the specified

depths of soil and specified mulch (such as bark mulch).

3.4.2.2 Grading:

Soil shall be installed at the rates specified, and when reasonably dry and workable, graded to

smooth, flowing contours with all minor hollows and ridges removed.

Soil mix to be spread at levels to accommodate specified mulch where required. Final grades

should not be deviate more than +/- 25 mm from the finish grade specified.

3.4.2.3 Setting Out:

Stake out the outline of planting areas, ground cover beds and individual trees and shrubs

locations.

3.4.2.4 Planting Pits:

All plants shall be established in special beds (Lawns, Ground Covers and Seasonals) or pits

(Trees, Palms, and Shrubs). The pit/bed shall be large enough to take the plant root ball and

shall be thoroughly watered prior to planting. In offshore projects (Example The Palm, The

World, Dubai Maritime City, Umm Suqeim Beach, etc.) all trees shall be established in

containers or pits lined with a Geotextile material (non-woven Geosynthetic) laying on all sides

of the pit and extending to the pit bottom. The lining shall minimize the amount of water

draining into the underground aquifer (and consequently the adjacent coastal/beach waters)

and at the same time prevent fluctuating tidal underground water to drawn the root zone with

toxic saline waters.


Typical geotextile material shall be Gauge 500 - 1000 Terram, Fibertex or equivalent brands.

Figure 1 show recommended planting pit and bed specifications for plants in Offshore Projects.

Planting beds and pits shall have the following sizes:

• Palm pits 1500x1500x1500 mm

• Tree pits 1200x1200x1200 mm

• Large shrub pits 500 mm deep

• Shrub beds 500 mm deep

• Ground cover beds 300 mm deep

• Lawn areas 300 mm deep

3.4.2.5 Backfilling:

Pit/beds shall be backfilled and watered to eliminate all air pockets until final soil level is

reached.

3.4.2.6 Edging:

Plastic edger shall be used, where gravel/pebble areas are in interface with planting/ sweet soil

areas. It shall also be used to separate lawn areas from ground cover, mulch, or shrubs areas.

Material shall be 3.5 - 4% Carbon Black for UV stabilization, Height: 10-15 cm and Wall

Thickness: 2-2.5 mm. Use of interlock blocks or aluminum edging shall be allowed after

consultation with NELD.

3.4.2.7 Gravel:

Gravel shall be free from additional organic and waste material; of consistent beige or dark gray

Omani color. Size of gravel is 20-30 mm DIA and 50 mm thick.

3.4.2.8 Transplanting:

Plants shall be carefully removed from containers and placed upright in the hole. Care shall be

taken not to damage the roots of the plants.

3.4.2.9 Stakes:

Stakes shall have a size of 5x5 cm and painted with water proof green color paint and be

installed in such away to avoid contact with the root ball.

3.4.2.10 Plant Ties:

Plant ties shall be straps of fabric webbing with UV resistant plastic adjustable buckle and shall

be consistent type through the site.

3.4.2.11 Watering: A circular watering basin slightly larger than the planting hole shall be formed. Immediately

after planting, all plants shall be thoroughly watered in.


Figure 1. Typical planting pit specifications for Palms and Trees [A] and bed specifications for Lawns / Seasonal Plants / Ground Cover [B] in Offshore

Projects: The Palm, The World, Dubai Maritime City, Um Suqeim Beach, etc.

Lawns / Seasonal Plants / Ground Cover

l Geotextile layer

30 cms soil layer

20 cms wadi gravel layer

[B]

1.85 m for palms & 1.55 m for trees

4-7 cms pebbles 50 - 70 mm Wadi Gravel

Fill with Soil Mix

geo-textile layer

100 mm

250 mm



[A]


3.5 Fertilizers:

All fertilizers shall be inorganic, chloride free, environmentally friendly, slow release and in the

lower PH range. Fertilizers shall be furnished in standard containers with the name, weight and

guaranteed analysis of the contents clearly marked. Slow release fertilizer shall be equivalent to

18-18-5 +TE or 17-17-4 +TE. Fertilizer application rates during planting are as follows:

• Palm Pit: 250 gm (Post planting application)

• Tree Pit: 200 gm.

• Shrub Pit: 30-50 gm / shrub

• Ground Covers, Flowers, and Lawn beds: 15-20 gm/m2.

3.6 Mulch:

Mulch shall be totally organic, non-toxic, resistant to rapid decay and brown in color such as pine

bark or another source. Chip size 30-60 mm length, 20-30 mm width and 15-25 mm thick. Mulches

are to be applied in a 50-75 mm layer over the entire surface of planting area. Wadi gravel can be

used as mulch and shall follow specifications described in section 3.4.2.7. Wadi rocks use shall

comply with tender specifications.

4. IRRIGATION

4.1 Trench Excavation and Backfill:

Trench excavation shall be carried out after getting all necessary NOCs. Excavation shall be by

hand wherever required to ensure the safety of utilities encountered during excavation work.

Excavation shall be in accordance with line size as per the following:

• Main lines: ≥ 8 inch @ 1.2 meter deep, < 6 inch @ 1.0 meter deep measured from the

crown of the pipe to the finish grade and 60 cm wide.

• Laterals: 6o cm deep measured from the crown of the pipe to the finish grade and 40 cm

wide.

• Storage in streets of excavated material not to be immediately reused in the backfill of

trenches will not permitted.

• The selected material for pipe surround and to 30 cm above the top of the pipe shall be

suitable material selected from the excavated material.

4.2 Pipes and Fittings:

• All pipes and fittings shall be sized according to British Standard (BS).

• All pipes shall be manufactured from new materials.

• Main pipelines sized 8 inch or larger shall be GRP pipes while main pipelines sized 6 inch or

smaller shall be uPVC class D.


• Pipes class shall be as follow:

a. Pressure pipes: Class 16/ Class D (> 1’’ pipes)

Class E (for 1’’ pipes)

b. Non pressure pipes: Class 10/ Class C (for conduits)

• Joints and fittings for pipes sized 2’’ and less will generally be solvent cement while for 3’’

or larger will generally be integral bell socket.

• PE pipes for drip line shall be pressure compensating and manufactured from linear low-

density polyethylene incorporating a minimum of 2.8% carbon black and shall be suitable

for 6 bar working pressure.

• PE risers connecting the secondary uPVC pipe with the PE tertiary pipe shall be as

follows:

a. Be of a ½ inch size for sprayers, sprinklers and bubblers and 16 mm for

drippers.

b. An independent riser shall be allowed for each sprayer, sprinkler bubbler and

for drippers if used for irrigating palm tree.

c. A common riser shall be allowed for ornamental trees, shrubs, ground

covers, seasonal flowers, rockery plants and succulents. Such riser shall be

extended to the allowable length as per irrigation design.

• All uPVC fittings shall be Class E (15 bar working pressure).

• All PE fittings shall be compression fitting suitable for pressure rating up to10 bar.

Pipe suppliers have to be prequalified and approved by NELD. The following are approved

suppliers for pipes and fittings:

• UPVC Pipes: Hepworth and Gulf Eternit.

• UPVC Fittings: GF (for all sizes), Dura (up to 4’’), FIP (up to 3’’) and Atlas (up to 3’’).

• Poly Pipes: Cosmoplast and National Plastic.

• In line PE: Rain Bird, Toro, Cosmoplast and Euro Drip.

4.3 Underground Warning Tape:

Warning tape shall be laid above the irrigation main and sub-main pipes. Tapes shall be of laminated

polyethylene, durable and flexible with at least 15cm wide and 250 microns thick and shall have the

phrase ̎ CAUTION – IRRIGATION PRESSURE MAIN BELOW ̎ stamped in black letters and repeated at

maximum intervals of 1.0 meter. The text of tape shall be made using a permanent ink bonded to

resist prolonged chemical attack by corrosive acids and alkaline. The text shall be in Arabic and English.

The tape shall be laid continuously over pipelines and at joints and there shall be a minimum of one

meter overlapping. Tape shall be terminated inside valve boxes to allow clipping of detector equipment

to the tape.


4.4 Emitters:

All emitters shall be pressure compensating with different flow 2, 4 and 8 liters per hour or

equivalent.

The capacity and spacing of emitters shall be as follows:

• Palm Trees: Two bubblers of 1 GPM each, 12 nr. X 8 LPH or in line

drip tubing system equivalent.

• Ornamental Trees: 6 nr. X 8 LPH on line emitters per tree or in line drip

tubing system equivalent.

• Shrubs: 2-3 nr. X 4 LPH on line emitters or in line drip

tubing system equivalent.

• Ground Covers and Flowers: 4 nr. X 2 LPH in line emitters per m2, spacing between

emitters shall be 30-50 cm and spacing between drip lines shall be 50 cm.

• Hedge: 2 nr. X 4 LPH on line emitters per LM.

4.5 Bubblers:

The bubbler shall be a pressure compensating type capable of providing a consistent flow rate.

The bubbler shall have a “trickle” pattern or an “umbrella” pattern discharge. The bubbler

assembly shall have a plastic inlet filter screen to protect the nozzle against clogging.

The pressure compensating bubbler shall be of a permanently assembled design constructed of

durable, UV-resistant plastic with an integral rubber flow washer for regulating the flow rate at an

operating pressure range of 1.5 to 6.0 Bars. The pressure compensating bubbler shall have a ½

inch female threaded inlet for connection to the piping system riser.

Stakes for bubblers shall be constructed from strong temperature resistant polypropylene plastic

construction with protective stop collar, length shall be 12 inches each side of inlet with barbed

side inlet suitable for class C polyethylene pipes, and outlet shall be ½ inch external male thread.

Bubbler suppliers have to be pre-qualified and approved by NELD. The following are approved

suppliers for emitters:

• Rain Bird

• Hunter

• Toro

• Hit


4.6 Pop-up Sprayers:

The sprayers shall have a high level impact strength corrosion body, stem and nozzle. Pop up

height should be 4’’. The sprayer shall have a heavy-duty stainless steel retraction spring and

piston with step clutch to facilitate nozzle positioning. Either standard or rotary nozzle could be

used and both shall be capable of covering 4.5-meter radius at 2.0 bar pressure. Spacing for the

sprayers with standard nozzle shall be 4 meters. For small areas, sprayers with low flow nozzles

shall be used.

Sprayers should be installed in such a way that water will not hit stems of the trees or any other

structure or the Electric panel. Sprayers shall be installed 15 cm from heel/edge of the footpath.

Sprayer shall have a pressure-activated co-molded wiper seal to clean debris from the pop up stem

as it retracts.

Sprayer shall also have PRS pressure regulator built into the stem and matched precipitation rates

nozzles.

Sprayer suppliers have to be pre-qualified and approved by NELD. The following are approved suppliers of sprayers:

• Rain Bird

• Hunter

• Toro

• Hit

4.7 Rotor Sprinklers:

The sprinkler body, stem and nozzle shall be constructed of heavy duty, UV resistant ABS plastic

material. Rotor shall be a closed water lubricated gear drive, rotary type and capable of covering a

radius of 6.7 to 15.9 m at a pressure range of 2.1 to 4.8 bars with discharge rate of 1.9 to 54.5

liter per minute. The sprinkler shall be available with 8-12 standard interchangeable nozzles or 8

built-in different nozzles.

The sprinkler shall have the following specifications:

• A strong stainless steel retraction spring and adjustable arc.

• Radius reduction capabilities by means of a stainless steel nozzle retainer/radius

adjustment screw or by choosing the appropriate nozzle that is equipped with the sprinkler

as in K-Rain Dial A-Nozzle.

• It is preferable to have a friction-clutch mechanism to allow for 360 degrees + forward or

reverse movement of nozzle turret without damage to the internal gear components.

• It is also preferable to incorporate an ̎ arc recall ̎ feature to allow original arc pattern to be

automatically resumed following any disturbance of nozzle setting.


• A screen installed in the pop-up stem to filter inlet water to protect the drive from clogging

and simplify its removal for cleaning and flushing of the system. The sprinkler shall have

minimum 10 cm pop-up height and exposed surface diameter of not more than 4 cm.

• Shall have a pressure-activated co-molded wiper seal to keep debris out of the rotor and to

clean debris from the pop up stem as it retracts. All adjustment shall be made from the top

of the sprinkler.

Sprinkler suppliers have to be pre-qualified and approved by NELD. The following are approved

suppliers for Rotor Sprinklers:

• Rain Bird.

• Hunter.

• Toro.

• K-Rain (Especially K-Rain Dial A-Nozzle).

4.8 Valves:

4.8.1 Solenoid Valves

Automatic remote control valves shall be of the sizes prescribed on the plan. The valve shall have

the following specifications:

• Be a normally closed 24 volts 50 cycles, unless otherwise specified, solenoid actuated globe

pattern with a balanced pressure diaphragm design.

• The valve pressure rating shall not be less than 200 PSI.

• Have both internal and external manual open/close control (internal and external bleed) for

manually opening and closing the valve without electrically energizing the solenoid. The

internal manual bleed shall prevent flooding of the valve box.

• Have a captured plunger with a removable retainer for easy servicing and leverage handle

for easy turning.

• Have a stainless steel flow control stem and cross handle for regulating or shutting off the

flow of water.

• Must open or close in less than one minute at 200 psi, and less than 30 seconds at 20 psi.

• Shall be constructed such as to provide for all internal parts to be removable from the top

of the valve without disturbing the valve installation and have a contamination-proof (CP)

self-flushing nylon filter screen located at the valve inlet to filter out grit and prevent

clogging of hydraulic control ports and assure reliable operation.

• Shall be capable of working under dirty (Treated sewage) water conditions, inlet and outlet

shall be threaded B.S.P.


• Shall be provided with a pressure regulator capable of regulating downstream pressure

between 15 to 100 PSI (within an accuracy of +or- 5 PSI) regardless of upstream pressure.

IT shall provide full and accurate pressure regulating capabilities irrespective of whether it

is operated electrically or manually.

• For valves less than 3’’, rated working pressure shall be equal to or greater than 16 bars

(PN16). The valve shall be Hybrid (Brass and Plastic) or Glass Reinforced filled Nylon. Gate

valves of the solenoid valve assembly shall be brass gate valves up to 3’’ and Kite marked.

• Valve assembly shall be equipped with PRS.

Solenoid valves suppliers have to be pre-qualified and approved by NELD. The following are

approved suppliers for valves:

• Up to 3’’ Brass gate valves: Pegler.

• More than 3’’ Flange gate valves: AVK, Belgicast and Datcotenant.

• Solenoid Valves: Rain Birds, Hunter and Hit. 4.8.2 Gate Valves: Gate valves shall have the following specifications:

1. Gate valves three inches and above (≥3’’):

• Be double flange, ductile iron waterworks valves, with wedge type gate and non-rising

stem.

• Coated with epoxy internally and externally to average DFT 300 microns for protection

against corrosion of body components.

• Valves installed below ground shall be provided with stem cap for key operation while the

valves above ground shall be provided with hand wheel.

• Stem shall be stainless steel and stem nut is brass or cast aluminum bronze with gunmetal.

2. Gate valves two inches and smaller (≤ 2’’):

• Have a non-rising stem manufactured from brass or bronze according to (BS 5154).

• Inlet and outlet shall be screwed BSP.

• Pressure nominal rating at PN 16


4.8.3 Quick Coupling Valves (if required):

Quick coupling valve shall have the following specifications:

• Made of solid red brass with a rubber or thermoplastic cover marked with “DO NOT DRINK

“warning.

• Used for non-potable water.

• Lockable and supplied with swivel elbows, keys and hose- pipes.

• Made of a strong corrosion-resistant stainless steel spring to prevent leakage.

• Sized ¾” or 1’’ size and shall be operated at pressure ranging from 5 to 125 psi.

4.8.4 Check Valves:

Check valves shall have the following specifications:

1. Check valves three inch and above (≥3’’):

• Be doubled flange single door swing type having ductile iron body and gun metal seat (BS

1400).

• Pressure nominal rating at PN 16.

• Coated with epoxy internally and externally to average DFT 300 microns for protection against

corrosion of body components.

• Nut bolts made of a stainless steel.

2. Check valves of two inches and smaller (≤ 2’’):

• To be of spring type manufactured from Brass or Bronze.

• Inlet and outlet to be BSP female threaded.

• The spring shall be a stainless steel.


4.8.5 Air Valve (if required):

Air valves shall be provided at all high points on the pressure mains as per the following specifications:

• Have automatic double orifice air vents.

• Have non-corrosive floats in chambers with clear space ensuring blockage free operation.

• All actuating mechanism components including lever shall be stainless steel. The body and

cover should be of bronze or ductile iron with phenolic primer coating.

• Nozzles with seals and actuating mechanism shall be located in the removable upper plate

connected to the valve body using stainless steel (grade 316/A4-70) bolts.



• Nut bolts and internal components shall be stainless steel grade 316/A4-70.



4.8.6 Electrically Actuated Butterfly Valve (if required):

Electrically Actuated Butterfly Valve shall have the following specifications:

• Comply in all respects with DIN 3354-PN 16 Body of ductile cast iron SG GGG-50 with stainless

steel grade 316 valve discs.



• Nut bolts shall be stainless steel grade 316/A4-70

• Open and close of at least 60 seconds and shall be provided with an auxiliary operating wheel.

The motor control should allow for stepped closing of valve pausing at ½ closed and ¼ closed.

• Motors shall be rated to operate at an ambient temperature of 50 degrees centigrade and a

relative humidity of 100%.

• Electrical component shall be protected from condensation.

4.8.7 Pressure Relief Valve (if required):

Pressure Relief Valve shall be installed in the pump room in order to release excess pressure away from

the system and shall have the following specifications:

• Flanged and of ductile iron body, diaphragm type, hydraulically operated, pilot control and

modulating type.

• The pilot shall be brass and tubing of cupper/brass.

• Fast opening and slow closing.

• All internal and external exposed surfaces shall be FDA approved epoxy coated to minimum DFT

300 microns.

• Nut bolts shall be stainless steel grade 316/A4-70

4.8.8. Wash-Out Valve

Wash-out valves shall be installed at the lowest point of the irrigation main pipe in order to clean the

pipe periodically. The size of the valve shall match the pipe size.

4.9 Valve Boxes:

Air valves (2’’ or smaller), QCV, Solenoid valves and Wire Pull Boxes shall be installed in an access

box of sufficient size to permit ready removal of the valve inner assemblies without removing the

box from the ground. Valve name and numbers must be clearly marked inside and outside of the

box with permanent plastic tag.

Installation of plastic valve boxes in paved areas and Sikkas is not allowed.


Valve boxes shall be fabricated from reinforced plastic and recommended size shall be as follows:

Description Cover Depth QCV Round Valve Box 254 mm 260 mm Pull Box, Air Valve 1’’ and Flush Valve.

430 x 295 mm 300 mm

Solenoid Valves up to 2’’ 650 x 406 mm 380 mm Solenoid Valves 3’’ and above.

825 x 495 mm 457 mm

Valve box suppliers have to be prequalified and approved by The Unit. The following are approved

suppliers for Valve Boxes:

• Carsons & Brooks.

• Associated Plastics.

• Applied Engineering Products.

• Cosmoplast

4.10 Thrust Blocks:

A thrust block shall be provided for all pipes sized 3’’ or more at each bend deviation or at the end

of a pipeline. Heavy- duty polyethylene sheet shall be used to wrap the pipe at the point of contact

between pipeline fittings and the thrust blocks.

4.11 Head Unit:

4.11.1 Pumps

4.11.1.1 Main Pumps

Main pumps shall have the following specifications:

• Vertical multi stage in line centrifugal pumps.

• Multi-speed.

• Suitable for TSE water.

• Be protected against dry running through a system provided inside pump room and in

the storage tank.

• Have closed coupled three phase type motors running nominally at about 2900 rpm.

The motors shall be TEFC class F and have IP55 protection range.

• The power rating of the motors shall be 30% above the rated power shown on the

manufacturer’s catalogue.

• Have cast iron body and base.

• Have a stainless steel pump section i.e. impellers, guide vanes and champers.


4.11.1.2 Sump Pumps

Sump pump shall have the following specifications:

• Be of robust construction and suitable for pumping corrosive, treated effluent with high

sand content.

• Be operated automatically at minimum 100 mm depth of water by a float switch if the

level of water inside the pumping station comes up.

• Have a stainless steel body, impeller and other vital components.

• Have a capacity of 20 m³/hr at 12-meter head with their delivery line connected to the

storage tank.

4.11.2 Pressure Vessels

Pressure vessels shall have the following specifications:

• ISO-Butyl rubber type with a guaranteed life of at least three years while in contact with

the pumped fluid and the specified temperature.

• The pressure design rating shall be 1.25 fold that of the greatest pressure the vessel is

subject to.

• Mild steel; epoxy lined removable bag design hydro pneumatic vessel; test pressure 15 bar

with a suitable volume; complete with isolation valve and pressure switch assemblies.

4.11.3 Filters

Filters can belong to Mesh, Disc or any other form approved by NELD

Mesh Type:

Approved mesh type shall have the following specifications:

• Be self- cleaning using a hydraulically powered suction scanner, automatically activated

when the differential pressure across the filter reaches an adjustable level, nominally less

than 5 psi.

• Work only during the irrigation hours of the system.

• Have a maximum operating pressure of 140-150 PSI and a maximum operating

temperature of 150-160 F.

• Have a minimum back-flushing operating pressure of around 40 PSI.

• Have a flow and size as per the drawings, tender specifications and BOQ.

• Have a stainless steel grade 316 screen with 150 - 200 mesh size.

• Have a stainless steel body and internal parts including flanged connection.

• Be specially designed for use with organic contaminants.

• Have isolation valves in the suction as well as delivery side for easy maintenance.


Disc Type:

Approved disk type shall have the following specifications:

• Made of epoxy coated or stainless steel units with Anodized Aluminum body.

• Shall be automatic, self-cleaning, self-flushing system trigged by pressure differential and /

or pre-set time.

• Work only during the irrigation hours of the system.

• Have a maximum operating pressure of 140-150 PSI and a maximum operating

temperature of 150-160 F.

• Have a minimum back-flushing operating pressure of 45 PSI.

• Have a flow and size as per the drawings, tender specifications and BOQ.

• Have a short back flush cycle with regulated volume.

• Be specially designed for use with organic contaminants.

• Have isolation valves in the suction as well as delivery side for easy maintenance.

4.11.4 Basket Strainers

Basket strainers shall have the following specifications:

• Be cast iron with bolted cover with 1/8 inch perforations, inlet and outlet shall be flanged

and drilled to NP 16.

• Coated internally and externally with epoxy coating to 300 DFT microns.

• Bolts and nuts shall be stainless steel grade 316/A4-70.

• Be working at pressure 150 psi and shall be equipped with two pressure gauges and

isolation valves for easy replacement.

4.12 Electrical Equipment:

Electrical equipment shall be in accordance with DEWA regulations and the Electrical Specification.

Enclosures shall be protected in accordance with IP55 for equipment installed above ground and

IP58 for equipment installed below ground. Wiring to and from control panels shall be routed in

conduits below floor after getting NOC. The size of conduits is dependent on the total wires

available. All equipment shall be provided with earth leakage circuit breakers in accordance with

DEWA regulations.

4.13 Field Controllers:

Irrigation system shall be automatic by a programmed setting and controlled by Field Controllers

capable of independent timed operation.

The Field Controller shall be of the following specifications:

• A hybrid type that combines electromechanical and microprocessor-based circuitry capable

of fully automatic and manual operation.


• Have four fully independent programs and each with separate day cycles and 8 start times.

• Have a 365-day calendar with Event day off option to set any day of the month as a non-

watering day for all programs. Programs will run on an ODD/EVEN day cycle, day-of-the-

week ON/OFF cycle, or in cycles from 1 to 99 days.

• Capable of running a variable system test program without affecting the normal program

and have Cycle + Soak water management software which is capable of operating each

station for a maximum cycle time and a minimum soak time to reduce water run-off.

• Have an internal nonvolatile memory that shall retain the irrigation program and the

programmed date and time for a minimum of 100 years without power. A 9-VDC

rechargeable batteries and recharging circuit shall also be included for counting down the

program-in-progress during a power outage and shall allow programming of the controller

when it is disconnected from the main power supply.

• Shall indicate when it is operating under central control. It shall also display which Field

Controller and station is in operation at such time.

• Shall be pedestal mounted in lockable stainless steel weatherproof cabinets and UL listed

and tested.

• The controllers shall be installed onto concrete basis, control wire shall be color coded and

provided with tags.

Controller suppliers have to be prequalified and approved by NELD. The following are approved

suppliers for Field Controllers:

• Rain Bird

• Hunter

• Griswold

• Toro

4.14 Central Control System (CCS):

The CCS shall have the following specifications:

• Shall be computerized and shall control and monitor irrigation/firefighting systems, all

related pumps, flow sensors and all related accessories.

• Shall consist of a central computer station, which shall communicate in two directions with

the site control units through different communication means. The site control units shall

be intelligent device, modular and expandable and shall be able to store and forward data.


• Shall be capable of controlling a single site or multi sites and shall have a hybrid system,

which can offer both types of the system communication, Satellite and Decoders in the

same system.

• Shall operate in the Microsoft Windows operating system and shall provide water budget

adjustment, cost estimator and automatic ET adjustment.

• Shall be capable of integrating, if required, a remote connected weather station complete

with all necessary instruments for recording wind speed, wind direction, relative humidity,

rainfall, solar radiation and air temperature.

• Shall not be limited to the control or irrigation only, but shall also be capable of controlling

other functions such as lighting, security systems, firefighting, valves, fountains, etc

• The manufacturer shall repair or replace at no charge any of the manufacturer’s related

products that fail in normal use within the warranty period of five years.

CCS suppliers have to be prequalified and approved by NELD. The following are approved suppliers

for Central Control Systems:

• Rain Bird.

• Hunter.

• Griswold

• Toro

4.15 Electric Wiring:

All signal wires for underground use for Solenoid Valves and Satellites shall be single core and

power supply cable shall be 6mm2 x 3 core armored XLPE/SWA/PVC insulated. Power cables and

signal cables for satellites shall be laid in separate PVC conduits. The control cable shall be 14

AWG and the common cable 12 AWG.

The cables shall be suitable for direct burial in the earth; however it is required to be installed in

ducts or conduits as follows:

• 1’’ up to 4 wires.

• 1 ½’’ up to 8 wires.



• 4’’ more than 30 wires.

One spare cable shall be provided for every five cables and it shall run up to the last valve on each

main / sub-main.


Irrigation control cables shall be color coded as follows:

• Common wire for sprayers / sprinklers Green

• Common wire for drip / bubbler Black

• Drip valve wire Red

• Spray valve wire Yellow

• Sprinkler valve wire Orange

• Spare wire White

4.16 Irrigation Quantities:

The watering regimes for planted areas shall reflect the plant’s needs in accordance with the plant

type and season. The allowable water quantities for irrigation are as per the table below. However,

the allowable water quantity for all plants during construction period shall be double the quantity

shown in the table below. This quantity is allowed only for a period of 30 days from planting date

in order to establish the plants.

Cyclic (split amount) irrigation is encouraged with 40 – 60 % of the daily irrigation requirement

added in early morning periods (4 – 10 a.m.) and the remaining amounts towards the end of the

day (4 – 8 p.m.).

Month

Type of Plant

Unit (per day) May, June,

July, August

September, October, November, March, April

December, January, February

Palm Trees Liters/tree 150 110 75 Ornamental Trees

Liters/tree 100 75 50

Shrubs Liters/shrub 15 11 7.5 Hedges Liters/m2 10 8 5 Ornamental Grass

Liters/m2 10 10 8

Lawns & Ground Covers

Liters/m2 12 10 8

Cactus & Succulents

Liters/plant 8 6 4

Rock & Run plants

Liters/plant 10 8 6

N.B. The above allowable quantities are without using soil water retention additives.


4.17 Irrigation System Testing:

Pipework and Fittings Testing:

• All pipes shall be pressure tested within two weeks of installation. Pipes shall be

tested after center loading with joints exposed. Length of pipe tested at any time

shall not exceed 500 meters and the rate at which pipelines are successfully tested

shall be of the same order of magnitude as the rate of pipe laying. Center loading

shall be sufficient to prevent buckling or deformation due to application of pressure.

• All pipework shall be pressure tested for a minimum of 6 hours. The pressure

variation over the test period shall not exceed 10%. Test pressures shall be as

follows:

Main lines, pipework 10 bars

Lateral pipework and all other uPVC pipework 6 bars

• All mainline fittings shall be left exposed for the purpose of such test and shall be

inspected for evidence of leakage. Any major break in the mainlines requiring shut-

down of the test shall cause the test to be re-run entirely.

4.18 Automatic Irrigation System Commissioning:

Commissioning of fieldwork and equipment shall include all works required to bring the system into

service and to make sure that the system is operating efficiently and shall include but not be

limited to the following:

• Flushing of system.

• Adjustment of valve pressure +/- 10% of normal.

• Replacement of all clogged or partially clogged lines.

• Adjustment of sprayers / sprinklers and replacement of clogged / broken sprayers/

sprinklers.

• Replacement of all clogged or partially clogged emitters/ Bubblers.

• Preparation of Irrigation Schedules.

• Adjustment of controllers to give an optimal flow regime

• Assurances that all valves and sprayers/sprinklers are flushed with finished grade and after

all valves’ pressures have been adjusted.


5. MAINTENANCE 5.1 General:

Nakheel’s Landscaping Construction Contract includes a maintenance clause for a period of 3-5

years after hand-over to be undertaken by the same Landscape Construction Contractor. The

purpose of this clause is to create a sense of partnership between Nakheel and the Landscape

Contractor in which the later is liable for their construction works over a longer period of time

ensuring highest quality at all times. The clause also includes guarantees on water savings as

promised by the Contractor through the use of soil moisture retention amendments (section 5.4).

During maintenance, the Contractor shall undertake all works for maintaining the whole of the

landscape and irrigation works during the entire period specified in the Contract and provide all

tools, equipment, labor, plants, supplies, spare parts and machinery necessary to maintain the

landscape works in accordance with good horticultural practice and highest standards.

5.2 Requirements:

The Contractor shall maintain the landscape of the development in peak conditions at all times

using highest standard procedures and systems. Therefore, maintenance shall be carried on

regular basis based on an Annual Maintenance Masterplan Program (AMMP) and Operation and

Maintenance Manuals (O & M Manual) submitted to NELD for approval during tendering. This

schedule shall include but not be limited to the following:

• Mowing lawn area and line trimming around all obstructions.

• Edging around garden beds, paths, kerbs and bollards.

• Fertilizing all trees, planted areas and lawn area.

• Control of pest and disease by approved chemicals.

• De-thatching of lawn annually.

• Monitoring, maintenance and periodic adjustment as required to the irrigation system in

order to maintain the landscape in peak condition, optimizing growth rates without causing

water logging of the soil or wasting water.

• Pruning of trees, shrubs and ground covers.

• Removal of weeds, pruned material, rubbish, litter and any other undesirable objects from

all planted and grassed areas.

• Topping up mulch.

• Checking, repairing and / or removal of tree stake and ties.

• The immediate replacement of dead or failing plants and lawn areas.


• Maintaining hard paved and walls free of graffiti dirt, litter, weeds and any other

undesirable material.

• All other works necessary to maintain a healthy, clean and tidy landscape areas.

• Submittal of monthly water consumption budgets for auditing.

5.3 Approved Chemicals:

Only chemicals approved and listed under the ‘Agriculture Chemicals Approval Scheme’ issued by

the UAE Ministry of Agriculture and Fisheries will be used. All chemicals shall be environmentally

friendly and non-toxic to human beings, birds, and marine life and animals as ascertained by the

UAE Ministry of Agriculture and Fisheries and subject to the approval of Nakheel Environment and

Landscaping Department.

The Contractor shall be liable for ensuring that all chemicals are stored, handled and supplied

strictly in accordance with the manufacturer’s printed instructions.

An Integrated Pest Management strategy that minimizes the use and dependence on chemicals is

highly encouraged. Use of no-chemical alternatives for various chemical requiring operations is

also favored.

Prior to application of chemicals, all safety measures and precautions shall be fulfilled and taken

into account (Appendix 2).

5.4 Irrigation Water Budgets

The Contractor shall submit in writing a guarantee on percent water saving by using a specified

soil moisture retention amendment (section 3.1.5) for a specified period of time along the

Tendering documents. The percent water saving, material lifetime and subsequent cost of the

amendment shall be part of the tender evaluation process.

Based on the guarantee and in accordance with the plant BOQs and Irrigation Quantities (section

4.12), the Contractor shall submit monthly water consumption charts for auditing and billing. The

Contractor shall pay for all quantities of consumed irrigation water that is over and above the

guaranteed water saving percentage.


6. SCHEDULE OF PENALTIES

Consistent with the philosophy of providing Nakheel property investors with highest landscaping

standards, a penalty system is implemented to promote compliance with the regulations and thereby

protect quality within and around Nakheels’ developments. These penalties are applicable during both

construction and maintenance periods.

Prior to implementing such penalties, Nakheel’s Environment and Landscaping Dept. shall issue the

contractor a written warning for non-compliance with LMR 02. If the contractor is still non-compliant

after issuing the first written warning, Nakheel’s Environment and Landscaping Dept. shall issue a

Second written warning. In case of non-compliance after this warning, the related penalty shall take

place thereafter.

ITEM DESCRIPTION STAGE AMOUNT (UAED)

1

Failure to submit the Annual Master Maintenance Program (AMMP) including irrigation quantities and schedules acceptable to the Engineer within the agreed time. Add for every day thereafter (AMMP shall be submitted on the 1st day of the Contract Commencement Month of each year).

Maintenance

1000 per incident

500 per day

2

Failure to Submit the Weekly Maintenance Program (WMP) acceptable to the Engineer within the agreed time Add for every day thereafter (WMP shall be submitted on the Saturday of each week).

Maintenance

1000 per incident

500 per day

3

Failure to execute, maintain or operate any item or part of the works within the time prescribed or as set out in the O&M manuals or as established in the program of works, specification or any other terms and conditions of Contract (applicable to all works that are not covered explicitly hereinafter). Add for every day thereafter Plus consequential damages

Construction &

Maintenance

10000 per incident

250/day

Cost of repair or replacement plus 15%


4

Providing the Engineer with false or misleading information regarding any aspect of the operation and maintenance works or any matter related to the contract in general.

Construction &

Maintenance

2500/incident

5

Failure to follow the instruction of the Engineer regarding any matter related to the operation and maintenance works or any matter related to the Contract in general.

Construction &

Maintenance

1000 per incident

6

Failure to detect promptly and / or monitor pests, rodents and diseases causing damage to any part of the Project landscaping.

Construction &

Maintenance

1500/incident plus cost of

damages plus 10%

7

Failure to respond any call outs or instruction in connection with burst pipes and other like leaks and effect a repair, or close control valves in connection with the same, within half an hour.

Construction &

Maintenance

1000/incident

8

Failure to complete any repair work within the following as long as material are to be stoked by the Contractor: Landscaping works: 24 hours Irrigation works: 4 hours And for every day thereafter.

Construction &

Maintenance

500/incident

250/day

9

Failure to complete any maintenance, repair or renewal work within the following from the time the required plants, spare parts or materials are delivered to the site. Landscaping work: 8 hours Irrigation works: 4 hours And for everyday thereafter.

Construction &

Maintenance

500/incident

250/day

10 Failure to submit to the Engineer on weekly basis complete details of the Contractor’s personnel on the Site.

Construction &

Maintenance

500/incident

11 Any incident of staff deployed to the site without approval of the Engineer.

Construction &

Maintenance

500/incident/ person

12

Failure to maintain sufficient stock of spares, seed/seedling, consumables, fertilizers, pesticides, herbicides and the like that required to maintain the upkeep of the landscaping and operation of the irrigation equipment and system to the highest standards.

Construction &

Maintenance 1000/incident

13

Failure to maintain equipments and tools to the highest satisfactory operational conditions and that do not cause any inconvenience or hazards to the tenants of the Project.

Construction &

Maintenance 1000/incident


14

Failure to procure and deliver to the site locally available spare parts, consumables and materials required for the maintenance services, within 12 hours from receipt of Engineer’s approval and instruction to do so. And for every day thereafter

Maintenance

500/incident

250/item/day

15

Failure to procure and deliver to the site imported spare parts, consumables and materials required for the maintenance services, within 30 days from receipt of Engineer’s approval and instruction to do so.

Maintenance

500/incident per day

16 Failure to rectify any damage caused by the Contractor or to reinstate any works.

Construction &

Maintenance

Cost of repair or replacement + consequential damage +15%

17

Failure to gap fill or replace dead, damaged or unsatisfactory plant/tree including seedlings, flowers, borders and the like within three days from Engineer’s instruction. And for everyday thereafter

Construction &

Maintenance

50 plants / day

100/day

18

Failure to incorporate any changes made to the site on the drawings in excess of (14) days And for every day thereafter

Construction 1000/incident

500/day

19

Failure to submit to the Engineer Notification of Defect (NOD) for any fault, damage, malfunction or any abnormality in the landscaping and Irrigation services in the same day the Contractor becomes aware of such problem or maximum by 1200 hours the following day And for every day thereafter

Maintenance

500/incident

250/day

20

Failure to maintain the site properties from any damages, loss or injury.

Construction &

Maintenance

5000/incident + cost of loss or

damage

21

Failure to observe government or Municipality regulation or Conditions of Contract regarding waste disposal.

Construction &

Maintenance

1000/day

22

Failure to clear, remove plant waste from the site to the Municipality approved dumping site in excess of 12 hours.

Construction &

Maintenance

500/incident/day


23

Failure to observe the requirement of support staking for trees and shrubs and to action the requirement within 12 hours of the requirement being observed, or within twelve hours of being advised of the requirement by the Engineer.

Construction &

Maintenance

500/incident+ 50/tree/day thereafter

24

Failure to perform manual watering as the need arises or in areas where automatic irrigation is not available or for any reason not functioning.

Construction &

Maintenance

500/incident/day

25

Failure to meet safety regulations as specified in the Contract

Construction &

Maintenance

1000/incident

26

Failure to distribute notices of spraying or application of hazardous chemicals to Housing occupants and informing Engineer with 48 hours prior to spraying.

Maintenance

250/incident

27

Failure to complete any additional works in accordance with agreed programs And for every day thereafter

Construction &

Maintenance

500/incident

250/day

28

Failure to check, clean and maintain any component of the Irrigation systems and equipment in accordance with the Approved Program

Construction &

Maintenance

1000/incident

29

Failure to provide or / and maintain the minimum no. of any item of the Contractor’s Communication Equipment. This shall also apply to the Communication Equipment, which are not in the satisfactory operating conditions. And for every day thereafter

Construction &

Maintenance

100/incident

250/item/day

30

Other penalties maybe levied for Contractors non-compliance with the terms and conditions of the Contract at the discretion of the contractor representative in agreement with the Engineer.

Construction &

Maintenance

500-

1000/incident + 500/day of subsequent

delay or non -compliance.


Appendix 1 Alphabetical List of Prequalified

Landscape Contractors

• Agricultural Materials Company – Contracting Division

Box 63067 – Dubai, UAE Tel: 04 2979697 Fax: 04 29796098 Contact Person: Eng. Daoud Adu Swai (Mobile: 050 – 4496934) Email: amcuaecdo emirates.net.ae

• Albayader irrigation & contracting L.L.C

Box 50169 - Dubai, UAE Tel: 0 4 - 2822990 Fax: 0 4 – 2825440 Contact Person: Eng. Labib E. Boutros (Mobile : 050 – 6256387)

• Al Nabooda

Box 11193 – Dubai, UAE Tel: 0 4 - 2 9 4 89 8 8 Fax: 0 4 - 2 9 4 80 8 8 Contact Person: Eng. Les Ambrose (Mobile: 050 – 5526307) Email: [email protected]

• Al Sha’far Contracting and Landscaping

Box 113418 - Dubai, UAE Tel: 04 3345635

Fax: 04 3345653 Contact Person: Eng. Mohammed Tarawneh (Mobile: 050 – 6688031) Email: [email protected]

• ARCO Irrigation & Landscaping

Box 77729 – Dubai, UAE Tel: 04 2829500 Fax: 04 2829883 Contact Person: Eng. Ara Khanoyan Email: [email protected]

• Composcape Landscape

Box 72550 – Dubai, UAE Tel: 04 3214566

Fax: 3214566 Contact Person: Mr. Nader Gheslagi (Mobile: 050 – 6525591) Email: [email protected]

• Citiscape

P. O. Box 48303 - Abu Dhabi, UAE Tel: 02 6275228 Fax: 02 6275229 Contact Person: Mr. Houssam Khouri (Mobile: 050 – 6543575) Email: [email protected]

• Cypark

Box 780 – Dubai, UAE Tel: 04 3939633 Fax: 04 3939655 Contact Person: Mr. Daud Ahmad (Mobile: 050- 226 9079) Email: [email protected]


• Desert Landscape

Box 15572 – Dubai, UAE Tel: 04 398 0423 Fax: 04 398 0474 Contact Person: Eng. Julian Lee (Mobile: 050 – 6244976) Email: [email protected]

• Ghatoot Landscape

Box 111504 – Dubai, UAE Tel: 04 3381224 Fax: 04 3385312 Contact Person: Mr. Joan Moukarzel (Mobile: 050 – 8301720) Email: [email protected]

• Gulf Landscape and Irrigation Box 31926 – Dubai, UAE Tel: 04 3392001 Fax: 04 3392139 Contact Person: Eng. Jalal Ismail (Mobile: 050 – 4557436) Email: [email protected]

• Greenscape

P.O.Box 60487 - Dubai, UAE Tel: 04 3472570 Fax: 04 3472416 Contact Person: Eng. Nasser Sultan Lootah (Mobile: 050 - 6441634)

Email: [email protected]

• Orient Irrigation Services

Box 10581 – Dubai, UAE Tel: 04 2691985 Fax: 04 2693655 Contact Person: Eng. Suheil Najjar (Mobile: 050 – 6449341) Email: [email protected]

• PROSCAPE – Landscape Design and Construction

P.O.Box 3151 – Dubai, UAE Tel: 04 3338855 Fax: 04 3338831 Contact Person: Mr. Ahmad Anoohi. (Mobile: 050 – 4513331) Email: [email protected]

• Terraverde

Box 38240 - Dubai, UAE Tel: 04 3324229

Fax: 04 3324179 Contact Person: Mr. Nehme Moujaess (Mobile: 050 – 5580846) Email: [email protected]

• Zaid Al Hussain Est. – Trading and Contracting

Box 181581 - Dubai, UAE Tel: 04 2955422 Fax: 04 2955466 Contact Person: Eng. Ahmed Al-Khuffash (Mobile: 050 – 5517508) Email: [email protected]


Appendix 2 SAFETY MEASURES TO BE FOLLOWED

1. STORAGE OF CHEMICAL

• Chemicals shall be kept in special storeroom on site. All chemicals shall be segregated,

labeled, and stored in accordance with the conditions advocated by the manufacturer in

shelves or racks. An emergency eyewash/drench unit shall be in places where chemicals

are stored in regular use if no clean, running water is available in the immediate vicinity.

Water in such units shall be changed at least once per month.

• Any stock, which is outdated/past expiry date shall be removed from store and disposed off

in accordance with the manufacturer’s recommendations.

• Only trained and authorized personnel shall be allowed in the store and to handle such

chemicals. Such personnel shall be fluent in written English.

USE OF CHEMICALS

• Chemicals shall be used in the execution of the Works shall conform to the specification.

• A list of chemicals detailing the intended use, chemical specification, manufacturer and

origin of the chemical, stock position, use rate and any special precautions required in the

use of subsequent disposal of outdated chemicals shall be available at store.

• Chemicals having toxicity levels above an LD 50 higher than permissible shall not be used,

as they can cause damage to the environment, be harmful to humans, animals and plant

life.

• Early application of chemicals shall be carried out to control pests, disease, fungi, and other

like attacks on the plantation, in order that any such attack is controlled or eradicated at an

early stage before the damage becomes too severe, and also to prevent spreading and

infestation of other areas of plantation.

• Equipment used for the application of herbicides/weed killers shall be properly labeled and

shall not be used for applying insecticide, fertilizers, or any other purpose.

• When undertaking spraying operations of any nature in or around the locality of occupied

facilities, prior notices (in English and Arabic languages) shall be delivered 24 hours prior to

commencement of spraying operations. Highly visible signs with approved design and

wording in English and Arabic, and pictorial support shall be displayed.

• When undertaking spraying operations, the designated staff shall use personal protective

equipment like goggles, masks, rubber aprons, long shirts, rubber boots, and hand gloves.


2. DISPOSAL OF TOXIC CONTAINERS AND UNWANTED CHEMICALS

• All containers and vessels that have been used for storage of toxic materials and all waste

outdated or damaged chemicals shall be disposed off in accordance with the

manufacturer’s recommendations, Municipality and Ministry legislations and sound HSE

principles.

3. HEALTH, SAFETY & ENVIRONMENT (HSE)

• All works and services shall be undertaken in strict adherence to the HSE laws and

regulations as laid down by the various Ministries within the Emirates and any related

Decrees.

• All workers and staff shall be supplied with safety shoes of the appropriate type, in

accordance with the work they are undertaking. Workers that spend the majority of their

time inside the offices and the like shall be provided with lightweight safety shoes which

shall not be removed when entering the building, and which shall be kept clean and smart

at all times.

• Operators handling hedge trimmers and the like shall be provided with safety gloves and

goggles, those handling thorny branches, trees and shrubs shall also be provided with

safety gloves.

• Face/dust masks shall be provided to those working in dusty areas.

• All workers working in the open shall be provided with a baseball cap or other suitable hat

to protect their heads and necks from direct sun. Operators must wear safety helmets

when involved in ladder work.

• Operators handling or spraying chemicals shall be properly protected with long rubber

gloves, facemasks, goggles, rubber boots, aprons and other appropriate safety apparel.

• Health of all employees and of third parties affected by the operations and activities of the

Contract shall be properly addressed at all times.

• The sites/work areas shall be kept clean and tidy, and debris, surplus materials and other

unwanted substances kept in neat, tidy piles, or in rubbish skips where it will not interfere

with the movement of the workforce or any third party personnel and cleared from site at

the soonest opportunity as work proceeds.


• The use of bicycles and motorcycles for transportation around the worksite shall be subject

to the following conditions:

• More than one person shall not ride on a cycle.

• All persons riding on a motorcycle or scooter shall wear crash helmets including the

pillion passenger, if any.

• No tools shall be carried by hand either by the person controlling the cycle or

motorcycle, or the passenger.

• The cycle or motorcycle shall be equipped with a rear carrying rack or with securely

fitted pannier boxes to carry any tools. Pannier boxes shall be fitted in pairs.

• Any tools or materials carried on a rear-carrying rack shall not overlap the perimeter

of the rack by more than 300mm in any direction and shall be no higher than

600mm above the platform, or be of a weight that will unbalance the machine

easily.

• All personnel driving motorcycles shall be fully competent in the control of the

machine and hold a valid Emirates driving license of the correct category.

• All personnel riding cycles or motorcycles shall understand the general traffic rules

in regard to lane discipline and the like and shall observe these standards at all

times. Cyclists in particular, shall always ride on the correct side of the road,

particularly at junction when they are turning left.

4. WORKING ON THE ROADSIDE AND ROUNDABOUTS

• When working on close proximity to the road, the workers shall be provided with, and shall

wear safety vests over their normal uniform.

• Traffic cone shall be placed out approximately 600 – 1000 mm into the road to ensure

traffic is diverted from the workers.

• Danger boards with exact wording in Arabic and English shall be erected on the road at

least 400 meters before the working area, warning drivers that work is ongoing and

cautioning them to be alert.


5. WORKING ON LADDER AND STEPS

• A minimum of two persons shall always be present when working on ladders and steps,

one to undertake the operation on the ladder or step and one to steady the ladder and

ensure that it is stable at all times.

• Ladders and steps shall be of the height to gain access to the desired areas. Operatives

working on steps or ladders shall not be forced to use the top rungs in order to reach the

work he is undertaking.

• Operatives shall not over- reach to the sides in a manner that will cause the ladder or steps

to become unbalance.

• All ladder and steps shall be firmly founded on a level base before operatives ascend them.

Ladders that are going to be in place for work to continue for any length of time (in excess

of ten minutes) shall be tied off at the top. Also where the support at the top is unstable in

trees and the like, the ladder shall be tied off no matter what the duration of work is.

Landscape Works Requirement

Documents

contractors requirements

quality property nakheel

air valve

gate valve

check valve

solenoid valve

valve boxes

pressure relief valve