Repair and Maint of SWT Tubewell Borewelland Misc works in Tech and Domestic area under AGE EM GE AF Jodhpur No 2

Amount

Excavation in trenches, not exc 1.5 m wide and n. exc 1.5 m depth, or n exc 10 Sqm on plan and n exc 1.5 m in depth for foundations, shafts, wells, cesspits, manholes, pier holes, for foundations of poles, struts, stays etc. or laying underground cable and water supply pipe lines etc. in hard/dense soil & getting out including taking out old brick or precast cable cover complete all as specified and directed by Engineer-in-Charge.

Returning, filling in, including spreading, leveling watering and well ramming in layers n.exc 25 cm in hard/dense soil complete all as specified and directed by Engineer-in-charge.

Removal of excavated soil material to a distance not exc 50 metre and depositing where directed at a level not exc 1.50 metre above the starting point complete all as specified and directed by Engineer-in-charge.

Taking up or down 25mm bore galvanised steel water tubing including connections, fixed in walls, ceiling or laid under floor or laid in trenches etc complete all as specified and directed by Engineer-in-charge. Note :-Excavation and earthwork shall be measured and paid for separately.

All as per BOQ item No 4.00 above but 50 mm dia bore.

All as per BOQ item No 4.00 above but 80 mm dia bore.

All as per BOQ item No 4.00 above but 100 mm dia bore.

S&F 25mm bore galvanized steel water tubing medium grade with & including all fittings and fixed complete to walls and ceilings or laid in floors / trenches complete all as specified and directed by Engineer-in-charge.

S&F 50mm bore galvanized steel water tubing medium grade with & including all fittings, laid in trenches complete all as specified and directed by Engineer-in-charge.

All as per BOQ item No 9.00 above but 80 mm dia bore.

All as per BOQ item No 9.00 above but 100 mm dia bore.

Supplying, fixing and testing in replacement of 80mm bore cast iron sluice valve with langed ends drilled ISI marked class PN - 1.6 conforming to IS 14846-2000 with stainless steel spindle with iron wheel, CI gate with brass nut, bolts, washers and rubber packing for connecting pieces etc complete all as specified and as directed by Engineer-in-Charge.

All as per BOQ item No 12.00 above but 100 mm dia bore.

S&F in replacement gun metal globe or gate valve 25mm bore with iron wheel head, screwed both ends for iron pipes complete all as specified and directed by Engineer-in-charge.

All as per BOQ item No 14.00 above but 50 mm dia bore.

M&L for replacement of ball valve , high pressure ,with polythene float and fly nut complete for iron pipe of 25 mm bore.

Surface cleaning by removing the roots completely from the earth, shrubs, vegetation, grass, bushes, weeds by excavation not exceeding 15cm deep including sweeping removing the same to distance not exceeding 50m away from the installation and burning the same all as specified and directed by Engr-in-Charge.

Cleaning of SWTs upto 15000 GLN capacity by continues dewatering till the complete cleaning of SWTs by using suitable capacity non clog diesel engine pump set and removing all the accumulated sediments, foreign particles etc including scrubbing, brushing and removing all the dirt/sludge accumulated on the walls/floor etc as required all as directed by Engr In Charge.

M&L for MS framed work as in doors or gates of angle or other section with gusset plates,rails,braces, etc , complete ,drilled for fixing of steel sheeting or other covering, cover of SWTs and covers of valve chambers etc fabricated from structural steel incl nuts,bolts,welding, bending, drilling etc complete all as directedincl painting over a coat of red oxide including dismentaling of old rusted MS work all as directed by Engr In Charge.

M&L for Construction of brick masonry valve pit of internal size 90cm x 90cm x90cm including necessary excavation and earth work in soft/loose soil, brick work, plastering, white wash, PCC coping, MS frame made out of angle iron of size 40mmx40mmx6 mm, MS sheet cover of 3 mm thick fixed to angle iron frame by means of hinges welded to frame and painting with 2 coats of synthetic enamel paint over a coat of red oxide primer on steel surfaces and grouting the frame in PCC 1:2:4 type B-1 including handle and locking arrangement with one number 50 mm dia brass pad lock , complete all as specified and directed by Engineer - in - Charge Note :-(i) Brick wall shall be 23 cm thick built in cement mortar (1:4) (ii) Internal plaster shall be 15 mm thick in cement mortar (1:4) and external plaster upto 450mm from top shall be 20mm thick in CM (1:6) and remaining external surface shall be flush pointing in CM (1:6) as the work proceeds. (iii) PCC in foundation shall be 15 cm thick in cement concrete (1:4:8) type D-2 using 40 mm graded stone aggregate extended 15 cm all around from the external face of the walls. (iv) PCC coping shall be 15 cm thick in cement concrete ( 1:2:4) type B-1 using 20 mm graded stone aggregate including grouting of angle iron frame in PCC. (v) Two coats of white wash to internal surfaces of valve pit. (vi) Depth of wall pit shall be reckoned from the top of PCC in foundation.

Material and labour for 4mm dia galvanised steel wire, 150x100mm mesh, made up into mattresses or cages, lapped,wired and laid in position,including closing after filling all as directed by Engr In Charge.

M&L for taking out defictive submersible pump set of capacity 10 / 12.5 HP Capacity from bore well after disconnecting electrical connections, transportation to workshop for repair, dismantling the pump set for detection of repair such as rewinding of motor, replacement of iron stainer, bronze impeller, gun metal bushes stainless steel sleeve, impeller key, thrust bearing, replacement of unserviceable nut-bolts, washer, lugs, terminal plate, reassembling, lowering in well in its original position, making proper electrical connections, commissioning & testing complete all as specified and directed by Engineer-in-charge. Note : - (i) Cost for transportaion to workshop and carry back to site after repair is inlcuded in the unit rate of item nothing extra shall be paid on this acount. (ii) Rewinding of submersible motor, Iron stainer, bronze impeller, gun metal bushes stainless steel sleeve, impeller key and thrust bearing if required for replacement shall be paid separetly against respective items of Schedule as "Supply only". (iii) Cost of new nuts, bolts, washers, lugs and terminal plate required to be replaced is included in the unit rate of this item nothing extra shall be paid on this account.

M&L for rewiding of submersible pump set of capacity 10 / 12.5 HP with PVC insulated copper winding wire of existing gauge including varnishing, baking, cotton tape and greasing of bearings, bushes and other connected parts complete all as specified and as directed by Engineer –in-charge

Supply only Iron stainer suitable for submersible pump of capacity 10/ 12.5 HP, 6 stage complete all as specified and as directed by Engineer –in-charge.

Supply only Gun metal Bush suitable for submersible pump of capacity 10 /12.5 HP, 6 stage complete all as specified and as directed by Engineer –in-charge.

Supply only Thrust bearing (Gun metal) suitable for submersible pump of capacity 10 / 12.5 HP, 6 stage complete all as specified and as directed by Engineer –in-charge.

Supplying, laying & jointing in replacement submersible cable flat type, copper conductor of size 6 Sqmm 3 core complete all as specified & as directed by Engineer –in-charge.

M&L for Cleaning of RCC overhead reservoir upto 25000 gallon capacity at 60 feet staging by drain out the contaminated muddy water from bottom surfaces of the tank by using of pump and motor or by manually and cleaning the inside & bottom surfaces of walls with help of wire brushes and using specified dosage of potassium permanganate and cleaned water then drain out completely material to the entire satisfaction of Engineer-in-Charge with and including writing capacity of tank , date of cleaning of tank with synthetic enamel paint on outer surface of the tank complete all as specified and as directed by Engineer-in-Charge.

All as per BOQ item No 28.00 above but RCC overhead reservoir of capacity exceeding 25000 gallon and not exceeding 0.5 Lakh gallon capacity at 60 feet

All as per BOQ item No 28.00 above but RCC overhead reservoir of capacity exceeding 50000 gallon and not exceeding 1.5 Lakh gallon capacity at 60 feet

M&L for Cleaning of RCC underground sump upto 20000 gallon capacity at 20 feet depth by drain out the contaminated muddy water from bottom surfaces of the tank by using of pump and motor or by manually and cleaning the inside & bottom surfaces of walls with help of wire brushes and using specified dosage of potassium permanganate and cleaned water then drain out completely material to the entire satisfaction of Engineer-in-Charge with and including writing capacity of tank , date of cleaning of tank with synthetic enamel paint on outer surface of the tank complete all as specified and as directed by Engineer-in-Charge.

All as per BOQ item No 31.00 above but RCC underground sump of capacity exceeding 0.5 lakh gallon and not exceeding 1 Lakh gallon capacity at 20 feet depth

All as per BOQ item No 31.00 above but RCC underground sump of capacity exceeding 1 lakh gallon and not exceeding 2.5 Lakh gallon capacity at 20 feet depth

M&L for Cleaning of clarifloculator of Cap 100000 Glns by drain out the contaminated muddy water from bottom surfaces of the tank by using of pump and motor or by manually and cleaning the inside & bottom surfaces of walls with help of wire brushes and using specified dosage of potassium permanganate and Greasing all components by replacing the worn nut bolts of non clogging pump motor, and removing all the sludge dirt and deposits of any foreign materials etc. , painting of all the steel member channels, angles of the scrappers and mixers with two coats of bituminous based paint after preparation of old painted surface all as specified and directed by Engr-in-Charge.

M&L Cleaning of RCC raw water (back wash) sumps cap 25000 gln by drain out the contaminated muddy water from bottom surfaces of the tank by using of pump and motor or by manually and cleaning the inside & bottom surfaces of walls with help of wire brushes and using specified dosage of potassium permanganate and cleaned water then drain out completely material to the entire satisfaction of Engineer-in-Charge

M&L Cleaning of RCC raw water (back wash) sumps cap upto 10000 gln by drain out the contaminated muddy water from bottom surfaces of the tank by using of pump and motor or by manually and cleaning the inside & bottom surfaces of walls with help of wire brushes and using specified dosage of potassium permanganate and cleaned water then drain out completely material to the entire satisfaction of Engineer-in-Charge

M&L Cleaning of RCC sedimentation sumps cap 50000 gln by drain out the contaminated muddy water from bottom surfaces of the tank by using of pump and motor or by manually and cleaning the inside & bottom surfaces of walls with help of wire brushes and using specified dosage of potassium permanganate and cleaned water then drain out completely material to the entire satisfaction of Engineer-in-Charge

L C ASSOCIATES