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

Download Bill of Quantities for Construction Project: Obligations and Duties of the Contractor and more Exams Construction in PDF only on Docsity! IJMAA – ODOR CONTROL SYSTEM JEBB JENNINE SOLID WASTE TREATMENT FACILITY TENDER DOCUMENTS Preamble to Bill of Quantities REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities TABLE OF CONTENTS 1 GENERAL ........................................................................................................................................1 1.1 GENERAL.....................................................................................................................................1 1.2 ITEMS DESCRIPTION .................................................................................................................3 1.3 RATES AND PRICES ...................................................................................................................3 1.4 MEASUREMENT ..........................................................................................................................3 1.5 ITEMS TO BE FULLY INCLUSIVE ...............................................................................................4 1.6 ABBREVIATIONS.........................................................................................................................5 1.7 COVERAGE .................................................................................................................................6 1.8 BIDDER TO PRICE EACH ITEM ..................................................................................................6 1.9 DISCREPANCIES BETWEEN RATES.........................................................................................6 1.10 ALTERNATIVE STANDARDS OF EQUIPMENT ......................................................................6 1.11 WATER AND ELECTRICITY ....................................................................................................6 1.12 DISPOSAL SITES .....................................................................................................................6 1.13 TRANSPORT OF MATERIAL ...................................................................................................6 1.14 SOME DEFINITIONS ................................................................................................................6 2 SECTION 1: PRELIMINARIES AND GENERAL REQUIREMENTS .............................................7 2.1 ITEM 1.1 - MOBILIZATION / DEMOBILIZATION ..........................................................................7 2.2 ITEM 1.2 – COMPLEMENTARY DESIGN DOCUMENTS, CONSTRUCTION DOCUMENTS, SHOP DRAWINGS AND AS-BUILT DRAWINGS ...................................................................................7 2.3 ITEM 1.3 - PROVISIONAL SUMS .................................................................................................8 2.4 NOTE REGARDING GEOTECHNICAL SITE INVESTIGATION SURVEY FOR SWTF SITE ......8 3 SECTION 2: EXCAVATION AND EARTHWORKS ........................................................................9 3.1.1 EXCAVATION .......................................................................................................................9 3.1.2 FILLING AND BACKFILLING ..............................................................................................10 3.2 SECTION 3: CONCRETE WORKS............................................................................................12 3.2.1 PLAIN CONCRETE, REINFORCED CONCRETE,.............................................................12 3.2.2 STEEL REINFORCEMENT (FOR REINFORCED CONCRETE WORKS).........................14 3.3 SECTION 6: BLOCKWORKS ....................................................................................................15 3.3.1 BLOCKWORK .....................................................................................................................15 3.4 SECTION 7: JOINERY AND IRONMENGARY ..........................................................................16 3.4.1 JOINERY AND IRONMENGARY ........................................................................................16 3.5 SECTION 8: METAL WORK ......................................................................................................17 3.6 SECTION 9: FLOOR, WALL AND CEILING FINISHES .............................................................18 3.6.1 RENDER .............................................................................................................................18 3.7 SECTION 10: PAINTING AND DECORATING ..........................................................................19 3.7.1 ITEM - PAINTING................................................................................................................19 3.7.2 ITEM - PROTECTIVE COATINGS AND WATERPROOFING............................................19 3.8 SECTION 15: ELECTRICAL WORKS........................................................................................21 3.9 SECTION 18: MECHANICAL WORKS ......................................................................................22 3.9.1 GENERAL ...........................................................................................................................22 3.9.2 Item– DRAINAGE & VENT SYSTEMS ...............................................................................22 3.9.3 Item – manholes & chambers & sump pits..........................................................................22 3.9.4 Item – SUBMERSIBLE SEWAGE PUMPS .........................................................................23 3.9.5 Item – WATER DISTRIBUTION PUMPS ............................................................................23 3.9.6 Item 18.17 – diffusers registers & grills ...............................................................................23 3.10 SECTION 19: MISCELLANEOUS WORKS ...........................................................................24 3.10.1 ITEM 19.1 - BIOFILTER ODOR CONTROL SYSTEM........................................................24 REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS 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. REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities The quantities given in the bill of quantities are only estimations. In no sense shall such quantities be considered as limiting or extending the amount of the work to be done by the Contractor and of the materials to be supplied by him. The Contractor shall be responsible for checking quantities and for making any necessary surveys and investigations prior to submitting his tender and eventually placing any order for materials. 1.5 ITEMS TO BE FULLY INCLUSIVE Unless otherwise stated, all items shall be fully inclusive of all that is necessary to fulfil the liabilities and obligations arising out of the contract and shall include but will not be limited to: Design where expressly required by the contract Labor and all associated costs Materials, goods and all associated costs including waste of materials Provision of plant Transportation of materials to site and onsite Temporary works Establishment charges, overheads and profit All bonds and insurances Facilities of the Employer and the Engineer Site security Compliance with CDR health and environmental regulations Site administration As built drawings Water for the works Supplying of water, drainage, electricity, telephone and internet Lighting and power for the works Temporary accommodation for the use of the Contractor Temporary telephones for the use of the Contractor and the cost of calls Temporary roads, hardstandings, crossings and the like Temporary fencing, hoardings, screens, fans, foot-ways, guardrails, gantries and the like. Safety, health and welfare of workpeople Compliance with traffic regulations Maintenance of public and private roads, services an adjoining property Control of noise and pollution, prevention of fire and compliance with all other statutory and general obligations Removing rubbish, protective casings and coverings and cleaning the works on completion Drying the works, and dealing with flows and keeping the works free of water. Any necessary diversion, such as diversion of river etc. REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS 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 REPUBLIC OF LEBANON MERCY CORPS 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 m2, 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 (1 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 REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS 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. REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities 3 SECTION 2: EXCAVATION AND EARTHWORKS 3.1.1 EXCAVATION Excavation, 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. Excavation whether included in another item or separately measured shall include for excavation and disposal of surplus material, including: Cutting and disposal off site of existing asphalt or concrete pavement layer, etc. (if applicable); Excavating in any type of soil and to the required depth; Survey and setting out; Preparation of profiles; Preparation and compaction of the subgrade finished surface Preserving the bottoms of excavations and for filling any over-excavated volumes or disturbed areas to the net dimensions; Grading or levelling and compacting or trimming bottom of excavation; Provision for working space; Dealing with water, maintaining excavations in a dry condition, including dewatering and excavation and refilling of any surfaces allowed to deteriorate; Dealing with rivers and water courses, maintaining excavations in a dry condition, including water course diversion; Multiple handling of materials and transporting around the site, provision of storage areas and storage of any material required for backfilling; Selection of excavated material Filling to structures and trenches, compaction, moisture content control, testing; Disposal of surplus excavated material on the site itself at the locations indicated by the Engineer. Supporting excavations; Planking, strutting and supporting sides of excavation; Providing all temporary cofferdams, supports, bailing, drainage, pumping, sheeting and all other temporary works; Unauthorized over depth/width trenching and the backfill material including lean concrete required in such cases, no allowance shall be made for any working space or subsequent variation in trenching; Over excavating as a result of Contractor's failure to protect and preserve the trenches and formations; Any necessary trial holes or other necessary means to locate existing services; REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities 3.2 SECTION 3: CONCRETE WORKS 3.2.1 PLAIN CONCRETE, REINFORCED CONCRETE, Concrete 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. Concrete shall be executed complete including, but not limited to, for both concrete and formwork. If not included in another item, concrete shall be measured by net volume. No deduction shall be made for holes or voids of less than 0.5 m3. Concrete shall include for: Design and testing Forming of chamfers (25 mm x 25 mm) to all exposed external angles Building in of all pipes and fittings, bolts, frames, iron and steelwork and the like. Finishing of surfaces. Trial mixes Mixing, placing in or against any surface, including soil faces where required, compaction and surface finishing. Curing protection Test samples and trial panels Materials and attendance for sampling and testing carried out by the Engineer. Falls, cambers and shaped profiles. Weep pipes, pipe sleeves and the like. Construction joints (construction, expansion, contraction, etc.), skewbacks, stunt ends, steppings, bonding chases and the like including formwork, joint, joint filler, joint sealant, backing rod, water bars, waterstops, angles and accessories, treatment of reinforcement crossing the joint, treatment of concrete joint faces, preparation of surfaces, cleaners, primers, sealers, backing strips and bond breakers, dowel bars for expansion joints (whether shown or not on the Drawings or in the specifications, or directed by the Engineer, or judged necessary during the execution of the works). Holes, ducts, pockets, sockets mortices and the like. Concrete to fill overbreak and working space. Vibrating. Curing, sprinkling, Admixtures (superplasticisers, waterproofing (particularly for liquid retaining structures (wastewater, leachate and water) and structures such as the biofilter structure, etc.) and placing in cold weather. Work at any cross-sectional area. Horizontal, vertical or sloping works. Work in any location. Work at any height. Work lay in bays. REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS 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. REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS 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. REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities 3.5 SECTION 8: METAL WORK No particular requirements. REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities 3.6 SECTION 9: FLOOR, WALL AND CEILING FINISHES 3.6.1 RENDER Each kind of render is given separately. Work is measured in area in contact with the base. Work is deemed to include without being limited to: Work at any, height above floor level. Work, of any width, height or girth. Extra work involved in patterned work and work in multi-colours. Work laid to falls and crossfalls, and intersections on sloping work. Raking and vertical work, to skirtings, strings, aprons, saddles and the like. Working over and around obstructions, pipes and the like and into recesses and shallow channels. Overhand working. Keying mixes, bonding, agents, bedding mortars, adhesives and other fixing materials. Metal mesh strips and fabric reinforcement across dissimilar backgrounds, service chases, conduits and the like. Dividing strips, anti-crack strips, cover strips and movement joints, except designed expansion joints. Fair joints, edges, internal and external angles, coves, intersections, ends, ramps, wreaths and outlets. Preparatory works for the base surface. Preparatory works. Work required to be carried out before fixing, whether on or off site. Metal angle beads, stop beads and the like including working thereto. Dubbing out. The price shall include the supply, transportation and installation of the items of works which shall be executed complete including all necessary accessories. REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities 3.7 SECTION 10: PAINTING AND DECORATING 3.7.1 ITEM - PAINTING 3.7.2 ITEM - PROTECTIVE COATINGS AND WATERPROOFING Painting, protective coatings and waterproofing are given in square metres measured the area covered and measured flat. No deduction is made for voids not exceeding 0.50 m2. Work is deemed to include without being limited to: Internal and external work. Work of any girth. Work at any height above floor level. Preparatory work. Preparatory works for the base surface. Filler layers. Executing a smooth surface finish using mechanical steel trowel for the horizontal surfaces. The surface finish shall be compatible with the coating to be applied. Method of application. Rubbing down between coats. Work required to be carried out before fixing, whether on or off site. Priming backs of frames, edges of rebates and beads and bottoms of doors. Work in multi-colours, defused as the application of more than one colour on an individual surface or in one room. Extra girth of edges, mouldings, panels, sinkings, corrugations, flutings, carvings, enrichments and the like. Panes of any size in work to glazed surfaces Work to edges of opening lights and surrounding frame caused by opening cutting in next to glass, work on beads, hinges and fastenings in work to glazed surfaces Work on hinges and fastening to doors, frames and like in work to general surfaces. Work to attached hookbolts, cops and the like in work to surfaces of structural steelwork. Removing ironmongery from surfaces to be decorated and refixing. Masking adjacent surfaces “Rain water” strips Avoiding damages of paint and coatings on exterior surfaces of structures below ground level (walls and foundations) Covering up and protection of floor finishes during the course of the works, and cleaning off and leaving sound, true and level upon completion REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities 3.9 SECTION 18: MECHANICAL WORKS 3.9.1 GENERAL The mechanical works shall include fabrication, factory testing, supply, transportation, storage, installation, site testing, commissioning, O&M manuals, also supplying and installation of all corresponding control panel, fittings, supports, accessories and civil works required to complete installation of the equipment. The mechanical works include all the requirements in the specifications and everything shown on the drawings, and the directions of the Engineer, to achieve fully functional systems as required under the Contract. The contractor must submit the catalogues for all the mechanical works equipment to the approval of the Engineer before the purchase order. The unit price also includes, among others: Labelling, tagging of valves, equipment with their related control panel and components as specified. Painting and identification of pipes, valves, etc. Intumescent seals for all pipes penetrating shaft walls and/or two different fire compartments. All necessary civil works and builders works related to plumbing, drainage and mechanical works (Including excavation and filling works, concrete works, pipe protection and bedding (granular bedding or concrete surround as applicable, necessary and directed by the Engineer, depending on the type of pipe and the cover depth above the top of pipe.), fittings, supports, steel works, covers, surface preparation and treatment, cleaning, testing, and all necessary accessories, etc) 3.9.2 Item– DRAINAGE & VENT SYSTEMS This item shall include but not be limited to: Procuring, transporting, storing, installing, painting, remedying of all defects that may appear while testing, of polyethylene 100 pipes with all necessary accessories for drainage pipes running underground, UPVC pipes as per European Standard for drainage soil and waste and vent systems with elastomer joint socket, Pressure UPVC pipes as per European Standard for condensate systems with insulation, UPVC pressure pipes as per European Standard for waste systems Pressure polyethylene 100 Pipes with all necessary accessories for drainage pipes running underground, Perforated polyethylene pipes with all necessary accessories for drainage pipes running underground, Pipes are all complete including fittings, expansion fittings, antivibration hangers and supports similar to MUPRO or equivalent with accessories and all other necessary works for the proper execution of this item as shown on the drawings, required by the specifications and / or deemed necessary by the Engineer. 3.9.3 Item – manholes & chambers & sump pits This item shall include but not be limited to: REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities Supply all required materials, equipment and accessories, and construct reinforced concrete manholes and chambers, complete including, but not limited to, breaking out and reinstatement of existing paved surfaces as specified, site clearing and all necessary excavation in any type of soil; keeping excavation free from all water sources; Cast-in-place concrete using Sulphate Resistant Cement to ASTM C 150, Type V, 14 MPa (tested on cylinder) for blinding, and 30 MPa for reinforced concrete works (tested on cylinder), including all necessary formwork of any type and any shape, reinforcement and accessories; Concrete benching; Protective coating of external surfaces in contact with soil (bituminous coating in 2 layers); Protective coating of internal surfaces (coal tar epoxy coating in 2 layers, total thickness 300 microns minimum); Breaking into pipes; Backfilling with selected excavated or borrow fill materials; Compacting in layers to required density; Removing and disposing off resulting and surplus materials to approved dumping area; Covers and frames, steps, and all necessary accessories, covers and frames and all other necessary works for the proper execution of this item as shown on the drawings, required by the specifications and / or deemed necessary by the Engineer. 3.9.4 Item – SUBMERSIBLE SEWAGE PUMPS This item shall include but not be limited to: Procuring, transporting, storing, installing, painting, remedying of all defects that may appear while testing of Submersible pump set for sump pit, complete with complete with civil works, platform, sliding bars, float valves control, alarm signal to control room, factory preassembled control panel, controls for duplex running system and all valves and accessories, Each pump set shall include factor preassembled control panel. And the supply and installation of control wiring from water level controller, and all other needed control items to CP, (control panel shall include contractors AC-3, thermal and magnetic protection to coordination type 2), (numbered control cable), thermostatic rubber, round or flat flexible cable. Also include the electrical connections with power cable to the related disconnect switch, all as specified (electrical and mechanical) and as shown on the drawings. Pump sets shall be complete with all other accessories necessary for the proper execution of this item as shown on the drawings, required by the specifications and / or deemed necessary by the Engineer. 3.9.5 Item – WATER DISTRIBUTION PUMPS This item shall include but not be limited to: Procuring, transporting, storing, installing, painting, remedying of all defects that may appear while testing of water distribution pump set complete with all valves and accessories, Each pump set shall include factory preassembled control panel. And the supply and installation of control wiring from float valves, motorized valve, water level controller, differential pressure switch and all other needed control items to CP, (control panel shall include contractors AC-3, thermal and magnetic protection to coordination type 2), (numbered control cable Cu/PVC/PVC- 600/1000V). Also include the electrical connections with power cable to the related disconnect switch, all as specified (electrical and mechanical) and as shown on the drawings. Pump sets shall be complete with all other accessories necessary for the proper execution of this item as shown on the drawings, required by the specifications and / or deemed necessary by the Engineer. 3.9.6 Item 18.17 – diffusers registers & grills This item shall include but not be limited to: Procuring, transporting, storing, installing, painting, remedying of all defects that may appear while testing of extruded aluminium slot diffusers, squares diffusers, registers, grilles and linear grilles, complete with opposed blade volume dampers, wooden frames, fixings, with painting and all other accessories necessary for the proper execution of this item as shown on the drawings, required by the specifications and / or deemed necessary by the Engineer. REPUBLIC OF LEBANON Odor Control System IJMAA MERCY CORPS Preamble to Bill of Quantities 3.10 SECTION 19: MISCELLANEOUS WORKS 3.10.1 ITEM 19.1 - BIOFILTER ODOR CONTROL SYSTEM The price includes the complete execution of the Biofilter odour control system according to the requirements of the Tender Documents, notably the Particular Technical Specifications and the Bill of Quantities. - Preparation of detailed execution drawings and shop drawings - Site preparation - Supply, transportation and installation of biofilter equipment with all associated units and accessories (including suction/extraction fans, prescrubber system, dosing station, extraction ducts inside the composting (fermentation) hangar, extraction pipes between the composting hangar and the biofilter, water tank and distribution pipes, miscellaneous piping, water supply networks, equipment and accessories, drainage networks, manholes, equipment and accessories, humidity sensors, pumps, etc. as specified elsewhere in these Tender Documents) - Supply, transportation and installation of Biofilter media - Fumigation for the biofilter media before transport to Lebanon and the project area including addition of 0.7 Kg/m3 of urea (at 46%), as well as composting, overcasting and post-fermentation of the material for 4-5 weeks - All associated civil works including excavations and earthworks (including the execution of the elevated platform below the Biofilter odour control system), including, among others, site clearance and excavation, filling and backfilling, sub-base course layers and base course layers, damp proof membrane,), blinding concrete, foundations, reinforced concrete works, manholes, surface coating and protection, etc., complete for the complete execution of the biofilter system - All associated electrical works including power supply, electrical panels, cables, cable protection, earthing, necessary for the execution and operation of the biofilter odor treatment system and its various associated equipment and accessories till the connection of the complete biofilter system to the main control panel, etc. - All necessary accessories - Testing and commissioning - All other related works, all as specified, and to the satisfaction of the Engineer The price for this item, completely executed and tested, shall be paid as a lump sum. Note: the works related to the various execution of the elevated platform (to prevent flooding) is included within the price of the Biofilter odour control system,