ANNUAL RATE CONTRACT FOR THE WORK OF DRILLING OF BOREHOLE FOR HANDPUMP WITH CONSTRUCTION OF SOCK PIT AND PLATE FORM AND PROVIDING-INSTALLATION OF RELATED MATERIAL IN URBAN AND RURAL AREAS UNDER THE JURISDICTION OF PHED DIVISION BEAWAR

Construction of tube well from ground level & up to 100 mtr depth to accommodate housing and assembly pipe of following sizes in all type of alluvium strata unconsolidated formation such as pebbles, boulders etc. by percussion/rotary drilling method as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications, with gravel as per IS:4097-1967 and it's packing as per IS: 2800 (Part I & II) 1979 as amended up to date (the work includes the cost of gravel & it's primary packing and packing during development, lowering of housing & strainer assembly pipes with supply and wrapping of coir-rope, wherever necessary for arresting fine sand particles and development work, but excluding the cost of housing and strainer pipe assembly). The work would be completed after obtaining sand free water.

Nominal bore 125 mm dia.

Add 15% extra on above item for drilling depth beyond 100 mtr, If depth of bore is more than 100 mtr.

Construction of Tube Well up to 100 mtr. depth in all type of rocks by DTH system & over burden to accommodate casing pipe of following sizes in all types of soils & over burden including lowering of casing pipes, (if required) excluding cost of casing pipes, as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications. The work would be completed after obtaining sand free water. The tube well should have a through out bore as per nominal dia of casing pipe.

Nominal bore 100 mm dia.

Nominal bore 125 mm dia.

Add 15% extra on above item for drilling depth beyond 100 mtr, If depth of bore is more than 100 mtr.

Supply of ERW M.S. black casing pipe ISI marked {IS:1239(Part-1:2004)} medium of following sizes at site of work.

100 mm dia NB (Thickness of pipe 4.5 mm & mass of tube 12.50 Kg/m)

125 mm dia NB( Thickness of pipe 4.8 mm & mass of tube 16.40 Kg/m)

Construction of 185 cm. dia platform as per approved design and drawing of UNICEF.

Installation of India Mark II/III E.D. I & II hand pump set complete on exisiting platform

Supply and installation of ISI marked India Mark II Hand pump set complete with cylinder & 15 connecting rods.

Supply and installation of ISI Marked India Mark II Hand pump set Extra-Deep (EDW) complete with cylinder and connecting rods.

EDWHP + 20 Connecting rod.

EDWHP + 23 Connecting rod + 1 Weight.

EDWHP + 26 Connecting rod + 2 Weight.

EDWHP + 30 Connecting rod + 3 Weight.

Supply and installation of ISI mark connecting rod as per departmental specifications of 3 meter length.

Supplying and installation of G.I. Pipe 32 mm medium class B with pipe socket ( heavy duty)

Providing and Lowering of ISI mark Medium well PVC-U casing and screen pipe (CM) as per IS : 12818 : 2010 or amended upto date having pipe thickness as per IS code suitable for bore well with threading , winding with superior quality of plastic mesh & rope in three layers with end cap complete as per technical specification and direction of Engineer In charge.

100 mm nominal dia ( internal dia ).

125 mm nominal dia ( internal dia ).

Labour charges for making slots on blank pipes made of ERW MS black pipe ISI marked of following sizes, the slotting should be as per IS:8110-1985.

100 mm dia nominal bore

125 mm dia nominal bore

Construction of tube well from ground level and up to 100 mtr. depth and above of following sizes in all types of soils in alluvium strata, unconsolidated formation such as pebbles, boulders etc. by bailing method and without gravel packing as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended up to date) and technical specifications. The work includes formation of cavity at bottom by development with appropriate air compressor or bailer pumping and also lowering of casing pipe but excluding cost of the casing pipe. The tube well should have a throughout bore as per nominal dia of casing pipe. The work would be completed after obtaining sand free water.

Nominal bore 100 mm dia.

Nominal bore 125 mm dia.

Construction of soakage well in all type of soil with 300mm thick dry masonary, top and bottom 300mm coarse in CM 1:6, 80mm thick stone slab, jointing of slab in CM 1:3, Ralthal, Kharanja, 40mm thick M-15 grade C.C. flooring, earthwork complete as per approved drawing including disposal of surplus earth within a lead of 50 mtr.

Size 300 Cm. dia outside & 300 Cm. depth

-do- & 240 Cm. Depth

Size 240 Cm. dia outside & 240 Cm. depth

Providing, Laying, Jointing glazed S.W.Pipe grade 'A' (IS:651 marked) of apprvoed make with spun yarn & stiff mixture of cement mortar 1:1, excavation and refilling of earth in all type of soil up to 1.2 M depth, S.W. fittings including testing of joints etc. complete

100 MM Dia

150 MM Dia

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