AS PER BOQ

Setting up of drilling site by way of shifting of requisite machinery and allied material after making proper approaches as per requirement at site.

Boring/drilling 200 mm dia. Bore Well till sufficient aquifer Zone/discharge is encountered maximum upto 120meter below ground level by using ODEX Method of drilling and simultaneously driving of 200 mm dia. ERW casing pipe after providing fixing of casing drive shoe with first 200 mm dia. ERW casing pipe. Job including collecting samples from different strata, preparing and submitting strata chart/bore log, including hire and running charges of all equipment/tools plants and machineries required for the job, all complete as per direction of Engineer-in-charge. (ERW casing pipe shall be paid separately)

Supplying, assembly (including welding), lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 mild steel beveled ended 200mm dia. casing pipes, conforming to IS: 4270 of reputed and approved make, including painted with outside surface with two coats, of anticorrosive paint of approved brand and manufacture including required hire and labour charges, fitting and accessories, all complete for all depths, as per direction of Engineer-in-charge. The cost includes transportation, loading, unloading and stacking/handling at site all complete.

Development of Tube Well in accordance with IS:2800 (Part-I) and IS: 11189 to establish maximum rate of usable water yield without sand content (beyond permissible limit) with required capacity air compressor for required time till the Tube Well is fully developed measuring yield of well by “V” Notch method or any other approved method, measuring static water level & draw down etc. By step draw down method, collecting water sample and testing from approved laboratory including disinfection of Tube Well. Complete including required hire and labour charges of air compressor, tools and accessories etc.

Providing, installation, testing and commissioning of submersible pump set of suitable capacity as per the available discharge and head of the tube well, coupled with 3-phase, copper-wound, squirrel-cage induction motor conforming to relevant/latest IS specifications. The Job includes providing, fabricating and fitting of G.I. flanged column pipes (3.0 m length each) of suitable diameter as per discharge requirement, lowering of submersible pump set with G.I. riser/column pipes and submersible cable into the tube well with the help of chain pulley block and other required tools and tackles, up to the required depth as per the available head. The job further includes providing, fabricating and installing 3-phase automatic starter-cum-control panel of required rating, suitable for protection against over-current, short-circuit, single phasing, dry run and over/under voltage conditions, housed in weather-proof sheet steel enclosure suitable for outdoor installation. Providing and laying of submersible copper cable of required size and length from control panel to submersible motor, and providing and laying of 3½ core aluminium armored cable of required size and length for main power connection. Making of electrical connections with the starter panel, service line and submersible pump set after properly thimbling and testing and commissioning thereof. The job includes the cost of material and labour charges. The rate shall include cost of all materials, labour, carriage, loading, unloading, tools and tackles, and any other incidental items required for satisfactory completion and commissioning of the pump set, complete in all respects.