Operation and maintenance of water supply for ALHW Colony, Circle office, B Quarry complex at Campbell Bay in Great Nicobar Island for a period of one year.

Amount

Operation and maintenance of water supply

Providing and operating pumps for water supply arrangement twice in a day or as per the requirement to ALHW colony, office complex, 'B' quarry complex, DSS Complex excluding cost of POL for diesel pumps, water supply fittings as and when required but including cost of all llabour charges for operating pump, minor tools and plants, GST etc. complete.

Cleaning of terrace/loft water storage tank (inside surface area) upto 2000 litre capacity at all heights with coconut brushes, duster etc., removal of silt, rubbish from the tank and cleaning the tank with fresh water disinfecting with bleaching powder @ 0.5gm per litre capacity of tank including marking the date of cleaning on the side of tank body with the help of stencil and paint and disposing of malba all complete as per direction of Engineer-in-Charge. (The old date already written on tank should be removed with paint remover or black paint and if date is not written with the stencil or old date is not removed deduction will be made @ Rs. 0.10 per litre) (if during cleaning any GI fittings or ball cock is damaged that is to be repaired by contractor at his own cost and nothing extra will be paid on this account)

Cleaning of Wells, under ground sump, Over Head R.C.C. Tank ( independent staging) including disposal of slit and rubbish, all as per direction of Engineer-in-Charge. The cleaning shall consist following operations:- (i) Tank shall be emptied of water by pumping & bottom shall be cleaned of silt and other deposits. (ii) Entire surface area of the sump shall then scrubbed thoroughly with wire brush etc. and pressure washed with water. (iii) Chlorination of RCC internal surface by liquid chlorine.

Providing and fixing G.I. pipes complete with G.I. fittings and clamps, i/c cutting and making good the walls etc. Internal work - Exposed on wall

25 mm dia nominal bore

50 mm dia nominal bore

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete :

25 to 40 mm nominal bore

Providing and fixing ball valve (brass) of approved quality, High or low pressure, with plastic floats complete :

20 mm nominal bore

25 mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :

50 mm nominal bore

Providing and fixing G.I. Union in existing G.I. pipe line, cutting and threading the pipe and making long screws, including excavation, refilling the earth or cutting of wall and making good the same complete wherever required :

20 mm nominal bore

25 mm nominal bore

50 mm nominal bore

Providing and fixing P.V.C. waste pipe for sink or wash basin including P.V.C. waste fittings complete. Semi rigid pipe

32 mm nominal bore

Providing and fixing uplasticised PVC connection pipe with brass unions : 45 cm length

15 mm nominal bore

Providing and fixing brass bib cock of approved quality :

15 mm nominal bore

Providing and fixing C.P brass Pillar Cock of approved quality :

15 mm nominal bore

Supply of manpower for attending unforseen complaint works related to water supply, pump, including cost of all labour charges, minor tools and plants, GST etc. complete.

Skilled Mazdoor (Plumber/Fitter)

Semi-Skilled Mazdoor (Asst. Plumber/Asst. Fitter)

Un-Skilled Mazdoor (Beldar/Helper)

M/s APN Builder Enterprices