Bill of Quantities for Construction Project: Obligations and Duties of the Contractor, Exams of Construction

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IJMAA – ODOR CONTROL SYSTEM

JEBB JENNINE SOLID WASTE TREATMENT FACILITY

TENDER DOCUMENTS

Preamble to Bill of Quantities

Odor Control System

IJMAA Preamble to Bill of Quantities

• 1 GENERAL TABLE OF CONTENTS
• 1.1 GENERAL.....................................................................................................................................
• 1.2 ITEMS DESCRIPTION
• 1.3 RATES AND PRICES
• 1.4 MEASUREMENT
• 1.5 ITEMS TO BE FULLY INCLUSIVE
• 1.6 ABBREVIATIONS.........................................................................................................................
• 1.7 COVERAGE
• 1.8 BIDDER TO PRICE EACH ITEM
• 1.9 DISCREPANCIES BETWEEN RATES.........................................................................................
• 1.10 ALTERNATIVE STANDARDS OF EQUIPMENT
• 1.11 WATER AND ELECTRICITY
• 1.12 DISPOSAL SITES
• 1.13 TRANSPORT OF MATERIAL
• 1.14 SOME DEFINITIONS
• 2 SECTION 1: PRELIMINARIES AND GENERAL REQUIREMENTS
• 2.1 ITEM 1.1 - MOBILIZATION / DEMOBILIZATION
• SHOP DRAWINGS AND AS-BUILT DRAWINGS 2.2 ITEM 1.2 – COMPLEMENTARY DESIGN DOCUMENTS, CONSTRUCTION DOCUMENTS,
• 2.3 ITEM 1.3 - PROVISIONAL SUMS
  • 2.4 NOTE REGARDING GEOTECHNICAL SITE INVESTIGATION SURVEY FOR SWTF SITE
• 3 SECTION 2: EXCAVATION AND EARTHWORKS - 3.1.1 EXCAVATION - 3.1.2 FILLING AND BACKFILLING
• 3.2 SECTION 3: CONCRETE WORKS............................................................................................ - 3.2.1 PLAIN CONCRETE, REINFORCED CONCRETE,............................................................. - 3.2.2 STEEL REINFORCEMENT (FOR REINFORCED CONCRETE WORKS).........................
• 3.3 SECTION 6: BLOCKWORKS - 3.3.1 BLOCKWORK
• 3.4 SECTION 7: JOINERY AND IRONMENGARY - 3.4.1 JOINERY AND IRONMENGARY
• 3.5 SECTION 8: METAL WORK
• 3.6 SECTION 9: FLOOR, WALL AND CEILING FINISHES - 3.6.1 RENDER
• 3.7 SECTION 1 0: PAINTING AND DECORATING - 3.7.1 ITEM - PAINTING................................................................................................................ - 3.7.2 ITEM - PROTECTIVE COATINGS AND WATERPROOFING............................................
• 3.8 SECTION 1 5: ELECTRICAL WORKS........................................................................................
• 3.9 SECTION 1 8: MECHANICAL WORKS - 3.9.1 GENERAL - 3.9.2 Item– DRAINAGE & VENT SYSTEMS - 3.9.3 Item – manholes & chambers & sump pits.......................................................................... - 3.9.4 Item – SUBMERSIBLE SEWAGE PUMPS - 3.9.5 Item – WATER DISTRIBUTION PUMPS - 3.9.6 Item 18.17 – diffusers registers & grills
• 3.10 SECTION 1 9: MISCELLANEOUS WORKS - 3.10.1 ITEM 19.1 - BIOFILTER ODOR CONTROL SYSTEM........................................................

Odor Control System IJMAA Preamble to Bill of Quantities March 2020 Vol. 3 / Page 2 1 ) Installation and maintenance of site equipment and temporary facilities, dismantling and removal of site equipment and temporary facilities after completion of the works. 2 ) Construction and maintenance of all access roads including safety measures and traffic signaling. 3 ) Supply of material, labor, tools, equipment, consumables, machinery and all the required items for the completion of the works and for the subsequent operation, maintenance and repair. All goods, materials, equipment and accessories shall be submitted to the Engineer for approval. 4 ) Performing all kinds of testing during construction in conformity with the specifications and as directed by the Engineer. 5 ) Providing site security. 6 ) Preparation of drawings, reports, submittals and all other required office work in order to complete the works with their related expenses. 7 ) Protection of public and private properties, preservation of the existing utilities and indemnification against all damages caused by the construction activities, 8 ) All necessary precautions to avoid damaging services and where they are interrupted to reconnect them immediately. Any underground utility structure related to any local authority shall be properly disconnected, disposed, relocated and/or diverted under the Engineer's supervision and under the control of the relevant authority at no additional cost. No separate payment shall be made and the rates in the Bill of Quantities shall be deemed to cover adequately all costs. The Tenderer’s attention is drawn to the fact that the service authorities may impose, in addition to the cost of repair, statutory penalties. Details of these requirements may be obtained from the respective authorities. 9 ) Providing all necessary safety measures as barriers, signs, lightings, etc ... to ensure the safety of the workers, people and traffic and to delineate the boundaries of the work zone day and night. 10 ) Providing traffic control in areas of construction including the construction of roads and pathways, the erection of signs, barriers and lighting. 11 ) Insurance for all works, equipment and personnel. 12 ) All costs pertaining to the Contractor work area (stores, workshops, repair zones), 13 ) All duties, taxes (income taxes, stamp duties, etc.) (except the VAT and custom duties) 14 ) Supply of water and power including piping and wiring to all parts of the project and all related costs, 15 ) Supply of fuel, oil, spare parts, etc.…. for all the vehicles and equipment involved in the construction works related to this Contract. 16 ) Providing qualified personnel, technicians, workmen, etc. needed for the proper execution of all works and their related charges (salaries, pensions, etc. ), 17 ) Execution of all survey works to position structures, monitor the progress and verify the locations (X,Y,Z) of all constructions and prepare topographic layouts to be submitted to the Engineer on paper and electronic copy. 18 ) Preparation of all kinds of submittals, reports and studies required by the Conditions of Contract, the specifications, the drawings and the Engineer. 19 ) Providing all required guarantees and bonds 20 ) Providing all required insurances and the like 21 ) All necessary temporary work and services associated with the Works 22 ) Establishing, furnishing and maintaining the facilities and site offices of the Employer and Engineer including the various consumables, electricity, water, etc. 23 ) Providing until handing over, clean and uncontaminated water and all necessary adequate electrical power required for the works 24 ) Daily site cleaning during execution of the Works and final cleaning after completion of the works including removing all waste, scrap and resulting materials to approved dumping areas 25 ) Protecting all Works against damage by whatever method deemed necessary and approved. Any work damaged before the Works are handed over shall be replaced or made good at the Tenderer’s expense and to Engineer's satisfaction.

Odor Control System IJMAA Preamble to Bill of Quantities 26 ) Overhead and profit

1.2 ITEMS DESCRIPTION

The various sections within this document are preambles to the sections of the Bill of Quantities. They give a detailed description of the work involved and of the conditions under which and the manner in which the work is to be done and measured, for each item of the Bill of Quantities. Reference should be made to this Preamble to Bill of Quantities and all other documents forming the Contract. The Bills of Quantities are to be read in conjunction with other Contract Documents, which shall be taken as mutually explanatory. The general directions and descriptions of work given in the specifications and the drawings are not necessarily repeated in the bill of quantities. Reference must be made to the specification and the drawings for such information, which shall be deemed to be included in the bill of quantities.

1.3 RATES AND PRICES

The Contractor shall be deemed to have inserted against each item in the bills such rates and prices as he may deem necessary to cover the requirements of the contract. Where neither price nor rate is entered against an item it shall be deemed to be “nil” and measured accordingly. The term “included” or any such similar term shall be deemed to be nil. Rates and prices shall be inserted in the rate column of the bill of quantities. Each part of the bill of quantities shall be totalled and the totals carried to the summary and grand total. The whole cost of complying with the provisions of the Contract shall be included in the Items provided in the priced Bill of Quantities, and where no Items are provided, the cost shall be deemed to be distributed among the rates and prices entered for the related Items of Work.

1.4 MEASUREMENT

All measurements in the bill of quantities are strictly net. The principle of net measurements shall apply to all works executed. All quantities measured for payment shall be measured by the Engineer on the basis of actual net quantities installed. Net measurements shall be done according to net dimensions. The net dimensions are the dimensions shown on the contract drawings. In case of lack of details on some drawings and in case of design changes approved by the Engineer, the Contractor shall prepare and submit to the approval of the Engineer any necessary associated drawings. Accordingly, the net dimensions shown on the above drawings and approved by the Engineer shall be the base for the measurements. Lump Sum items shall not be subject to re-measurement and shall include the prices of all necessary equipment, construction, installation, testing and commissioning among others. The lump Sum entered in the bill of quantities shall include the price for a complete installation as described in the bill of quantities, specifications and other documents forming this Contract. All Works shall be measured net as installed with no allowance made for laps or waste, and irrespective of any trade, general or local customs. Measurement shall be applicable to finished work only as completed and no allowance shall be made for wastage, working spaces, bulking, shrinkage, overlaps, etc.; the principle of net measurement shall be applied to all Works under this Contract. All measurement shall be rounded up or down to the nearest integer number and exact half units shall be rounded up. Any thickness stated in this Document, shall be the finished and specified thickness. The unit of measurement for each item shall be as indicated in the Bill of Quantities.

Odor Control System IJMAA Preamble to Bill of Quantities Testing and commissioning of service installations including providing fuel, chemicals, etc Repair of the works during the maintenance period. Samples of materials and testing of materials, including providing equipment for testing Provision of technical standards Design, co-ordination, installation and as-built drawings and the like Reports, records, certificates, notices, proposals, designs, details, calculations, drawings, documents and other information required by the Specification. Obtaining statutory working permits and permissions Dealing with existing flows The prices of the pipes include all fittings. Any hand working in zones not accessible for machinery (such as watercourses, footpaths, stairs, along irrigation channels, etc.); Compliance with all other conditions of contract In pricing the items of the bill of quantities the Contractor shall cover himself and will be deemed to have covered himself for: All work, services and materials which according to the true intent and meaning of the contract may be reasonably inferred as necessary for completion of the works as described in the drawings, specifications, schedules and bills whether expressly mentioned therein or not. All duties, obligations, liabilities and responsibilities which the contract places upon the Contractor in connection with or in relation to the Contract. All costs of detailed survey, royalties and supply to the Engineer of all necessary drawings and documents.

1.6 ABBREVIATIONS.........................................................................................................................

The following abbreviations are used in the Bill of Quantities: Sq. Square mm Millimetre Cu. cubic m Metre Nr Number km Kilometre Hr hour % per cent Kg Kilogram dia. Diameter Prov. Sum Provisional sum ha Hectare DN Nominal diameter lin. Linear PN Pressure rating Extra Over EO L.S. LumpSum PI Provisional Item KW Kilowatt CDR Council for Development Reconstruction and SWTF Solid Waste Treatment Facility

Odor Control System IJMAA Preamble to Bill of Quantities

1.7 COVERAGE

Where the bill of quantities does not include separate items for Contractor's equipment, temporary works, temporary site facilities of all kind and the like, the Contractor shall be deemed to have covered his obligations in these respects in the unit rates of the B.O.Q.

1.8 BIDDER TO PRICE EACH ITEM

The Contractor shall be deemed to have inserted against each item in the bill of quantities such rates and prices as he may deem necessary to cover the requirements of the Contract. Where neither price nor rate is entered against an item it shall be deemed to be "nil" and measured accordingly. The term "included" or any such similar term shall be deemed to be nil. Rates and prices shall be inserted in the unit price and total prices columns of the bill of quantities. However not pricing an item of the B.O.Q does not relieve the Contractor from fulfilling the complete requirements set out in the Contract documents related to this project.

1.9 DISCREPANCIES BETWEEN RATES

In case of a discrepancy between unit rates and total prices unit rates shall govern. In case of a discrepancy between the price of an item and a sub-total or total, the item price shall govern.

1.10 ALTERNATIVE STANDARDS OF EQUIPMENT

If alternative equipment of equal or better standard is proposed by the Contractor and accepted by the Engineer the Contract Price shall be deemed to include for such alternative equipment and no additional payment will be made.

1.11 WATER AND ELECTRICITY

Unless otherwise explicitly stated in the Contract, water and electricity for the purpose of constructing, cleaning, testing, commissioning the works and human consumption shall be provided by the Contractor at his own expense, and shall not be measured separately.

1.12 DISPOSAL SITES

All disposal sites shall be provided by the Contractor in accordance with the local authorities and shall not be used by the Contractor prior to the approval of the Engineer. All costs related to such sites and the preparatory works involved are deemed to have been included in the priced items of the Bill of Quantities.

1.13 TRANSPORT OF MATERIAL

All materials shall be transported at the Contractor's expense from and to all works sites (including Contractor work area, storage areas, etc... ) whether these sites are accessible or not. The Contractor shall bear all charges related to access roads construction unless a separate item for access roads construction is included in the bill of quantities.

1.14 SOME DEFINITIONS

The following definitions shall apply to items in the bill of quantities Extra-Over Any "Extra-Over" (EO) item shall be measured and paid in addition to the measurement of the basic item to which it relates.

Odor Control System IJMAA Tender Documents-Volume 3 – Preamble to Bill of Quantities

2 SECTION 1: PRELIMINARIES AND GENERAL REQUIREMENTS

2.1 ITEM 1.1 - MOBILIZATION / DEMOBILIZATION

This item shall include but not be limited to: Supplying all resources, equipment, vehicles, etc…. necessary for the execution and completion of the works; preliminary site survey visits and necessary measures and stakes to locate structures on the ground; Construction, operation and maintenance (other than those included in other items of BOQ) of equipped offices (including all essential/necessary services, utilities, furniture and communications facilities including internet) for the Contractor, the Engineer as well as the Employer, stores, workshops, clinics, labor living quarters and all other facilities required for the completion of the works under this Contract, removing all above stated equipment and facilities at the end of the contract period or when requested by the Engineer and returning the site to its original conditions all as shown on the drawings, required by the specifications and / or deemed necessary by the Engineer; The Engineer’s Site Offices includes offices, a kitchen, a WC, etc. The minimum area of the Engineer’s Site Office required is 25 m^2 , fully equipped (furniture, computer and printing facilities, air conditioning, etc.). The costs of operation of these offices shall be at the charge of the Contractor. Provision, erection and maintenance of signboard at the site giving information on the Project, Employer's name, Engineer’s name, Contractor's name, project duration and all other details prescribed by the Engineer complete with all necessary instructed alterations to the signboard ( signboard), all as specified, shown on the drawings and to the satisfaction of the Engineer. The price for this item "mobilization / demobilization" shall be paid as a lump sum.

2.2 ITEM 1 .2 – COMPLEMENTARY DESIGN DOCUMENTS, CONSTRUCTION

DOCUMENTS, SHOP DRAWINGS AND AS-BUILT DRAWINGS

This item shall include but not be limited to: Revision and Verification of all conceptual design drawings and other Contract document, gathering of data, site topographical survey, preparation and submission of complementary design documents, construction documents and shop drawings (three copies on paper, one sepia, and one electronic copy) including all design data, details and calculations necessary for the execution of the works, modifications to drawings, making copies of the shop drawings permanently available on site and all other necessary work for the proper execution of this item all as required by the specifications and / or deemed necessary by the Engineer. Final survey of the executed works, preparation of As-built drawings and submissions (three copies on paper, and one electronic copy), modifications to as built drawings, making copies of the shop drawings permanently available on site and all other necessary work for the proper execution of this item all as required by the specifications and / or deemed necessary by the Engineer. Preparation of operation and maintenance manuals defining all equipments and showing all necessary instructions for the control and maintenance of these equipments; collecting details and catalogues, gathering data sheets and manufacturer’s catalogues, all as required by the specifications and / or deemed necessary by the Engineer. October 2014 LIBANCONSULT AGM Vol. 4 / Page 7

Odor Control System IJMAA Preamble to Bill of Quantities Operation and Maintenance manuals shall be supplied written in English language except where instructed otherwise by the Engineer. The price for this item shall be paid as a lump sum.

2.3 ITEM 1.3 - PROVISIONAL SUMS

Provisional Sums have been included in the Contract at the amounts as stated in the Bill of Quantities. Provisional Items or Provisional Sums shall be used at the discretion of the Engineer and only if ordered or required by the Engineer in writing. The existence of the Provisional Sums does in no way entitle the Contractor to any claim and/or additional payment for fulfilling his obligations described in the Contract. The Contractor shall carry out at his expenses, the coordination and follow up of the execution of the works with the concerned authorities.

2.4 NOTE REGARDING GEOTECHNICAL SITE INVESTIGATION SURVEY FOR SWTF SITE

During the execution of the works, any additional geotechnical survey or testing or other site investigation survey required or judged necessary shall be also carried out by the contractor at his own expenses, and shall not be measured for direct payment, but shall be considered as subsidiary Works, the cost of which will be deemed to be included in the Contract prices for the Pay Items. The Contractor must satisfy himself as to the nature of the soil through which excavations and foundations are to be made or which are to be used in the construction of embankments. No claim from the contractor for additional payment will be considered. Costs for executing such trial excavation and trial trenching required by the Engineer for particular purposes, and ordered by him shall not be measured for direct payment, but shall be considered as subsidiary Works, the cost of which will be deemed to be included in the Contract prices for the Pay Items.

Odor Control System IJMAA Preamble to Bill of Quantities Locating existing services and any temporary diversion of mains or services; Temporary protection and support to all existing pipes, cables and services, chambers, culverts, gullies, foundations and the like, repair or replacement to them should they become damaged; Protection of existing service utilities and provision of all necessary temporary works to maintain utilities in use during and until completion of works; Any hand working close to or below existing services; Any hand excavation and working in zones not accessible for machinery (such as watercourses, footpaths, stairs, along irrigation channels, sewer lines in private properties, etc.); Excavation and reinstatement of topsoil its separate handling and storage; Barriers, lighting, warning signs, traffic controls and all other measures necessary to ensure the safety of the works; Restoration and reinstatement of surfaces except where separate items are included; Hand work working close to or below existing services; Disposal of surplus and unsuitable material to any distance; Temporary access roads or tracks. Execution of the approved fill material required to fill the excavations exceeding the dimensions shown on the drawings (as directed by the Engineer).

3.1.2 FILLING AND BACKFILLING

Filling and backfilling (including borrow fill material), if included in another item, shall not be measured for direct payment, but shall be considered as subsidiary Works, the cost of which will be deemed to be included in the Contract Price for the corresponding item. Filling and backfilling (including borrow fill material; i.e. borrow fill material shall not be measured separately) whether included in another item or separately measured shall include for: Selection of fill material Fill supplied and provided on the fill site by the Contractor from sources outside the Site, including all associated costs for borrow pit acquisition, excavation and earthworks, transportation of material from the borrow pit to the fill site, etc. Selection of material of stated and suitable types and transporting and layering or depositing in locations indicated on Drawings or directed by the Engineer for the fill. The rehabilitation of the borrow pit and in particular the levelling of a layer of agricultural soil over the whole borrow surface. Compaction of fill. Moisture content control Testing Foundation preparation and compaction Trimming and shaping to required levels and contours Complying with requirements for the equalisation of earth pressures or the sequence or rate of filling.

Odor Control System IJMAA Preamble to Bill of Quantities Depositing fill to slope away from vertical drainage layers and providing temporary drainage to prevent surface water from entering such drainage layers. Keeping the earthworks free of water. Taking precautions to avoid damage to property, structures, sewers, drains and services. Suitable material required for the protection of the sub-grade and its subsequent removal. Replacing suitable material rendered unsuitable. Fill resulting from the settlement of or penetration into the underlying material beneath the fill. Trial sections and samples. Testing (laboratory and in-situ)

Odor Control System IJMAA Preamble to Bill of Quantities Packing around steelworks and reinforcement and between formwork. Forming channels grooves, holes and chases in the surface of unset concrete. Grading, tamping and floating.. Grouting in mortises, holes pockets and the like. Execution of a smooth surface finish using mechanical steel trowel for the horizontal surfaces Rates for concrete shall include also for all shuttering and formwork works as required. Formwork shall include without being limited to, for the following: Falsework, centering, fabricating, assembling, cutting, fitting and fixing in position and taking measures to produce the required shapes of concrete. Forming cambers and falls. Linings and taking measures to produce the required finish to the surfaces of the concrete. Cutting and fitting around projecting members, pipes reinforcement and the like. Individual fillets, chamfers, splays, drips, rebates, recesses, grooves and the like. Rain water strip. Maintaining in place until it is struck and allowing for any variation from the minimum period for striking arising from prevailing weather conditions. Striking, taking down and removing. Concrete provided in lieu of formwork to fill overbreak and working space. Any width or area. Work in any location. Work at any height. Curved, conical spherical and elliptical work. Battens, struts, bolting, wedging, easing, striking and removing. Straight, raking and curved cutting. Forming grooves, throats, channels, chases, rebates, chamfers, splayed angles, moldings and the like. Forming mortices, holes, pockets, notches and the like. Mould oil. Making good exposed faces of concrete after removal of formwork under the direction of the Engineer. Fair-face Grade A appearance shall be executed for internal, external and exposed face of all structures and shall be formed by wrought formwork (Fair- face Grade A appearance). Execution of a smooth surface finish using mechanical steel trowel for the horizontal surfaces Concrete will be divided in the categories stated in the Bill of Quantities. Blinding concrete shall in addition include for excavation below the underside of the structural formation level and preparation and compaction and trimming of surfaces.

Odor Control System IJMAA Preamble to Bill of Quantities

3.2.2 STEEL REINFORCEMENT (FOR REINFORCED CONCRETE WORKS).........................

Reinforcement works, if included in another item, shall not be measured for direct payment, but shall be considered as subsidiary Works, the cost of which will be deemed to be included in the Contract Price for the corresponding item. Reinforcement shall be measured by net weight without addition for any rolling margin, supports, spacers or tying wire. Reinforcement shall include for preparing detailed drawings and bending schedules. The price shall include the supply, transportation and installation of the items of works which shall be executed complete including all necessary accessories. Rates for reinforcement shall include for: Bending. Tying wires. Distance pieces, spacers and supports. Bars of any location or number. If not included in another item, reinforcement shall be paid for per net ton of steel bars in place which weight shall be computed according to the bar diameter and unit weight of steel considered at 7. 850 tones per cubic meter. No allowance shall be made for: Rolling margin. Additional steel used for laps other than those specified.

Odor Control System IJMAA Preamble to Bill of Quantities

3.4 SECTION 7: JOINERY AND IRONMENGARY

3.4.1 JOINERY AND IRONMENGARY

Each kind of work is given separately. Doors and the like shall be measured by number. Doors shall be executed complete, including, among others, steel gate, panels, reinforcement, painting, accessories and all required works. The price shall include the supply, transportation and installation of the items of work which shall be executed complete including all necessary accessories.

Odor Control System IJMAA Preamble to Bill of Quantities

3.5 SECTION 8: METAL WORK

No particular requirements.