Installation of 25 Nos Shallow Tube Wells different Block

Amount

Labour for drilling a perfectly vertical bore hole of 300mm diameter up to 50 Mtr. depth below ground level through and unconsolidated formation with Truck mounted Direct circulation mud rotary / reverse circulation rotary rigs with R.R Bit as required to suit the site condition as per the direction of the Engineer in charge including use of own rigs with its accessories, tools and plants and consumable etc. for lowering of 150mm dia meter PVC pipe(ASTM) for housing fitted with socket and with well screened as per necessity for soft/medium, hard/boulder formation.0 to 50= 50 Mtr.

supply of 150 mm dia PVC(ASTM Sch-80) Casing Pipe with CIPET Charges and Lowering the PVC Casing pipe/ slotted pipe as per necessity from ground level and fitted and fixed of perfectly in vertical position including cutting and threading and supplying all jointing materials, tools and plants etc. Complete and keeping the top of the casing pipe threaded including clubbing the Tube Well to prevent entry of foreign materials from above and packing gravels around the casing in the annular space as per the direction of the Engineer. 0 to 50= 50Mtr.

Cost of bentonite drilling mud, including transportation to site,etc.7 bags

Graded and washed gravel of ‘B’ grade, 2 Cum.

Cost of 150mm dia PVC Cone–1 no.

Cost of 150mm dia Nipple –1 no.

Cost of 150mm dia PVC end cap – 1no.

Cost of slotting charges of 150mm dia PVC(ASTM-D)Sch.-80 pipe -12 Mtr.

Cleaning and developing the Tube well using own Air compressor continuously worked till clear and adequately discharge is obtained from the well including supply and use of all necessary equipments and labour complete as per the direction of Engineer in charge

Excavation of mud pit, settling pit & fluid channel, and Transportation of required ASTM pipe to work site etc.,

Conducting yield test through pumping for minimum 6 to 8 hours including supply of suitable Submersible pump set having capacity of discharge of 5.00 LPS at 50 Mtr. head, with 15KVA D.G. Set and a container of 200 ltrs. capacity, as required to suit the site condition as per the direction of the Engineer-in-charge including supply of tools plants labourers for lowering and lifting the pump set and measuring the yield of the shallow tube well.

HUIKA MANMATHA