Water supply scheme at iubiughuru-iuleha owan local governmment area Edo state
BENIN/ OWENA RBDA awarded a contract to RYENA LIMITED for WATER SUPPLY SCHEME AT IUBIUGHURU-IULEHA OWAN LOCAL GOVERNMMENT AREA EDO STATE. The procurement method is national competitive bidding. The contract value is NGN 8,757,548.89. The award was decided on 29 October 2018. The contract was signed on 29 October 2018. The reference is ocds-gyl66f-252038001-000091#award-1248. The notice was published by Nigeria Bureau of Public Procurement, NOCOPO.
Into French, Portuguese or Arabic, machine translated, with the original kept beside it.
Scope of Work
- Provide for reconnaissance, geological, hydrogeological and hydrogeophysical investigation using electrical, magnetic and / or electromagnetic methods to select most suitable site for drilling a productive borehole within the community including reports duly signed and sealed by a COMEG registered Geoscientist. (quantity 1)
- Construction of mud pit, flow channels, rig up activities and dismantling on completion. (quantity 1)
- Construction of mud pit, flow channels, rig up activities and dismantling on completion. (quantity 1)
- Mobilisation of equipment, materials and personnel to site and demobilisation on completion of works. (quantity 1)
- Construction of properly labelled sample box, collection of lithologic samples for analysis and submitted to Planning and Design Department. (quantity 1)
- Drilling of 250mm open hole through overburden and weathered rock to the rock head to accommodate 225mm temporary casings (quantity 15)
- Provision, installation and retrieval of temporary casing (225mm) (quantity 15)
- Drilling of 150mm Hole through fractured basement and fresh crystalline rocks from rock head to total depth of 35m (quantity 35)
- Provide and install OD 125mm x 7.5mm (Trapezoidal threaded on both sides – M/F) UPVC Casing (quantity 38)
- Provide and install OD 125mm x 7.5mm (Trapezoidal threaded on both sides – M/F) Slotted UPVC Screen (quantity 12)
- Provide and place approved uniformly size rice gravel (not granite chipping) (quantity 1)
- Place cement and sand slurry as grout around casing to depth of 4 meters (see attached drawing). (quantity 0.200000002980232)
- Place 0.6m x 1m x 1m mass concrete slab of mix ratio 1:2:4 around the casing (see attached drawing). (quantity 0.600000023841858)
- Development of borehole by backwashing, surging, jetting and airlifting methods until water is clear, sand free and non-turbid. (quantity 1)
- Pumping test of well for at least 24 hours (Constant pumping rate test) by a COMEG certified Hydrogeologist including two copies of report. (quantity 1)
- Provide for chemical and microbiological analysis of water sample from the borehole at the client’s approved laboratory. Water sample to be collected by Client’s Representative. (Provisional Sum) (quantity 1)
- Provide for four copies of complete technical reports including progress photographs to be collated by the client. (quantity 1)
- Provide and install Solar Powered Submersible pump SQ Flex series with solar modules to a total capacity of 1600W, 120 metres standard quality cable, cable joint kit and construction of support steel structure. (quantity 1)
- Provision of well head, pipe connection, valve, plug for water metre and wash out (quantity 1)
- Provide for the construction of protective cage against theft of borehole submersible pump ( See attached drawing) (quantity 1)
- Provide for the construction of protective operational switch box for the solar panel switch (See attached drawing) (quantity 1)
- Supply and install UPVC riser pipes 16 bar with threaded M/F joint and diameter of 31.25mm. (quantity 50)
- Allow for supply and installation of pressure gauge and flow meter (Provisional Sum) (quantity 1)
- Clear site of all bushes vegetation trees and rubbish including grubbing out root and dispose as directed (quantity 100)
- Excavation of existing soil to maximum of 1.5m for isolated pad footing (quantity 12.5)
- Backfill and compact (quantity 0.5)
- Remove surplus excavated material from site for re-use (quantity 2)
- 50mm thick blinding with concrete of 1:3:6 mix (quantity 0.5)
- Formwork-generally plain finish on vertical sides of bases and column (quantity 1)
- 12mm diameter reinforcement bar (quantity 120)
- In-situ vibrated concrete 1:2:4 mix for base and dwarf column (quantity 3.59999990463257)
- 20mm diameter x 750mm long hold down bolt embedded in the column base (quantity 16)
- Removal of form work from casing and subsequent removal from site (quantity 1)
- 20mm mild steel base plate 352mm x 352mm welded to the stanchion base (quantity 4)
- 10mm mild steel plate as end cap (quantity 4)
- 152mm x 152mm x 30Kg/m UC Stanchion 6.0m long each (quantity 24)
- 152mm x 152mm x 30Kg/m UC Stanchion 6.0m long each (quantity 24)
- 60mm x 60mm x 5mm thick equal angle horizontal bracing (quantity 8)
- 203mm x 133mm x 25Kg/m UB in primary beam in platform of tower each 4.4m long (quantity 8.80000019073486)
- 152mm x 89mm x 16Kg/m UB in secondary beam in platform of tower each 4.4m long (quantity 24.3999996185303)
- 3mm thick mild steel chequered plate on platform and landing (quantity 29)
- Provide, fabricate and erect steel ladder with hoops (quantity 1)
- Provide, fabricate and erect hand rail to cat walk to Engineer specifications (quantity 1)
- 300mm x 150mm x 8mm thick mild steel gusset plate (quantity 16)
- 300mm x 300mm x 8mm thick mild steel gusset plate (quantity 12)
- 600mm x 150mm x 8mm thick mild steel gusset plate (quantity 16)
- 16mm diameter bolt complete with nut and washer for gusset plate (quantity 1)
- Painting work with two coats of red oxide and aluminium (quantity 1)
- Painting work with two coats of red oxide and aluminium (quantity 1)
Selection Criteria
ratedCriteria: AS STATED IN THE ADVERT