REPAIR REPLACEMENT AND MAINTENANCE OF CERTAIN EXTERNAL WATER SUPPLY ITEMS OF MAIN WATER LINES FROM RAW WATER INTAKE POINTS PUMP HOUSE WATER FILLING POINTS WATER HYDRANT SYSTEMS AT VARIOUS INSTALLATION WATER LEVEL REPAIR TO HANDPUMPS BOREWELL CLEANING

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundations, taking down/ laying of cables/ pipes or for shafts, wells, cesspits, manholes, pier holes, etc. and not exceeding 10 Sqm on plan and getting out in hard / dense soil complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/loose soil complete all as specified and directed.

Removing excavated material (spoil) at a distance not exceeding 50m and depositing where directed at a level n. exc. 1.50 m above the starting point complete all as specified and directed.

Supply and fixing GI tubing, medium grade pipe with all fitting, laid in trenches, or fixed to walls with clamps, floors, ceiling etc. complete of the following bore sizes complete all as specified and directed.

50 mm bore size

80 mm bore size

100 mm bore size

Supply & Fix MS specials such as bends (any type, radius and angle) tapers any type, straight, bend, increasing, decreasing or double socket etc.) tee pieces single branch, "Y" junction, double branch, cross (all sockets or sockets and spigot) collars, caps and plugs etc complete all as specified and directed.

Supply and fixing in replacement MS Pipe heavy duty complete with necessary cutting/ welding bending etc as required for site of following bore size complete all as specified and directed.

250 mm dia MS Pipe, wall thickness 5mm, conforming to IS:3589 Gr 330

200 mm dia bore, MS pipe wall thickness 5mm, conforming to IS:3589 Gr 330

150 mm dia bore, MS pipe Heavy (Class C), conforming to IS:1239 Part-I (2004)

Supply and fix in replacement of sluice valve of following sizes, cast iron body, PN-1.6 with flanged ends drilled at both ends, confirming to IS-14846, ISI marked , having brass spindle with iron wheel at top, with nuts, bolts, washers, rubber gasket etc complete all as specified and directed.

450 mm dia

300 mm dia

200 mm dia

150 mm dia

100 mm dia

80 mm dia

Supply and fix in replacement cast iron non return valve of following sizes flanged type with by pass arrangement confirming to IS : 5312 Part-I calss PN 1.6 including nut, bolts, washer, gasket and welding work complete all as specified and directed.

200 mm dia

150 mm dia

Supply and fix in replacement of following size of butterfly valve both end flanged, class PN 1.6 confiriming to relevant IS 13095 (1991) lever operated including necessary jointing materials like nut, bolts, gasket, washer and welding work complete all as specified and directed.

200 mm dia

150 mm dia

100 mm dia

M&L for Mild steel Framed work such as grills, gratings, etc. with ends of bars shouldered and/or riveted, or forged into spikes; framed guard bars; barred iron doors, ladders, framed balusters, walk ways, ailings, framework of water tanks, or into the water river in any depth and similar work complete including necessary welding, primer, painting fastening as required conforming to Fe.290.Gde-E-165, complete all as specified and directed.

M & L for cleaning and removing of wild grass, soil, muds and wastage from valve chamber of any size complete all as specified and directed.

Labour only for attending break down of pipe line brusting /cracks and including cleaning /removal of broken pipe pieces of various lengths through cutting/welding etc as per site requirment and including by using sufficient dewatering pumps, JCB, Cranes as per site requirment complete all as specified and directed. (Note: - all excavation and refillings are included in the item rate)

80 mm bore GI/CI/DI/MS Pipe

100 mm bore GI/CI/DI/MS Pipe

150 mm bore GI/CI/DI/MS Pipe

200 mm bore CI/DI/MS Pipe

250 mm bore CI/DI/MS Pipe

300 mm bore CI/DI/MS Pipe

450 mm bore CI/DI/MS Pipe

80 mm dia

100 mm dia

150 mm dia

200 mm dia

450 mm dia

Dewatering of Raw water from filter bed including mud by pumping or bailing out muddy water from existing filtration bed complete all as specified and directed.

Taking out silt and mud deposited at the filter bed and removal at a distance not exceeding 50 mtr from the starting point (filter bed), complete all as specified and directed.

M&L for taking out quartz sand, gravels of different sizes and removal at a distance not exceeding 50 mtr from starting point, complete all as specified and directed.

M&L for Applying cement slurry wash on all sides of existing filter beds, complete all as specified and directed.

Supply and laying of layer of quartz sand dusts cleaned and washed of size 0.8 mm to 1.6 mm on filter beds, complete all as specified and directed.

Supply and laying silica sand best quality, without dust particals size not less than 1.6 mm on filter bed complete all as specified and directed.

Supply, cleaning, washing and laying of first layer of gravels of size 20 mm to 25 mm up to 400 mm depth complete all as specified and directed.

Supply, cleaning, washing and laying second layer of gravels of size 10 mm to 15 mm up to 400 mm depth complete all as specified and directed.

Supply, cleaning, washing and laying third layer of gravels of size 6 mm up to 300 mm depth complete all as specified and directed.

Supply, cleaning, washing and laying third layer of gravels of size 30 to 40 mm up to 300 mm depth complete all as specified and directed.

Labour only for site clearance/surface cleaning by removing of hurbs/shurbs/wild vegetation/removing surpus soil to a distance n exc 50 mtr and making good surface of the E/M installations area & water supply network area with suitable T&P complete all as specified and directed. Note:- All T&P will be provided by the contractor without any extra cost and also not to cut any tree/plants during the execution of works.

M&L for earthing complete with galvanised steel earth plate 600 x 600 x 6 mm size burried directly in ground vertically (earth pit not less than 2.50 M deep below normal ground level) with top edge of the plate not less than 1.75M below normal ground level, connected to and including galvanised strip 32x6mm fixed by means of bolts, nuts, check nuts and washer of galvanised iron or steel, all as shown in electrical plate No 3 of MES SSR 2009 Part-I connected to earthing test point all as specified or indicated including testing and providing 40 mm bore GI light grade protection pipe from top edge of the plate, earth plate surrounded by 150mm thick alternate layer of charcoal dust mixed with common salt, 20mm bore medium grade GI watering pipe, PCC pit in PCC 1:3:6 type C-2 (using 40mm graded stone aggregate). Internal surface of concrete shall be given 10mm thick plaster in cement mortar (1:4), 50mm thick cover of RCC 1:2:4 type B-1, reinforced with 8mm dia TMT bars at 80mm C/C both ways GI mesh, GI sheet funnel, including necessary excavation in soft/loose soil, returning filling in, including leveling, watering and well ramming and removal of surplus soil etc complete all as specified and directed

M&L for Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required galvanised iron strip 32 x 6 mm complete all as specified and directed.

M&L for lead joint in repairs for CI spigot and socket pipes and flange fittings for jointing flanged pipes and fittings include for provision of bolts,nuts,washwers and white lead or mineral oil etc complete all as specified and directed.

450 mm bore dia pipe

300 mm bore dia pipe

250 mm bore dia pipe

200 mm bore dia pipe

150 mm bore dia pipe

100 mm bore dia pipe

80 mm bore dia pipe

Burning out existing lead joint for CI pipe of the following bore size complete all as specified and directed.

450 mm bore dia pipe

350 mm bore dia pipe

300 mm bore dia pipe

250 mm bore dia pipe

200 mm bore dia pipe

150 mm bore dia pipe

100 mm bore dia pipe

80 mm bore dia pipe

M&L for disconnecting and removing the existing defective Centrifugal motor/monoblock motor 1 to 2 HP from the installed position and shifting to workshop and removing the burnt out winding and re-winding the same with super enamelled copper wire of same gauge and same number of turns of existing specifications, insulating winding with existing class of insulation varnishing baking up including replacement of base foundation nuts, bolts, wornout parts such as bearings, shaft sleeves, oil seal / gland rope, rubber packing / coupling greasing etc., and re-installation of pump, testing to satisfactory performance complete all as specified and directed. (Note : shifting to workshop and back to its original position sre included in the item rate)

Repairing of pressure filter complete with disconnecting and removing of old filter media, cleaning inside tank, replacement of filter media as per existing standard with new filter media, replacement of bypass valve, replacement of claugging indicator, replacement of rusted flange upto 50mm dia, replacement of all valves with new valves as per existing specification, complete removal of old paint and rust, applying of double coat metal primer and repainting double coat indicating of inlet, outlet and bypass pipe complete all as specified and directed.

Painting of pipe line of swimming pool including removing of old paint and rust from pipe line, applying two coat synthetic enamel paint over and including a coat of red oxide primer complete with different color for inlet, outlet and washout upto 50mm dia pipe complete all as specified and directed.

Supply in replacement of Digital type TDS meter complete all as specified and directed.

Supply in replacement of chlorine tsting kit complete all as specified and directed.

Supply and fix in replacement of float valve heavey duty for water tank of inlet 25mm dia omplete all as specified and directed.

Supply and fix in replacement of float valve heavy duty for water tank of inlet 20mm dia omplete all as specified and directed.

Supply & mixing copper sulphate, best quality in water complete all as specified and directed.

M&L for PCC 1:4:8 type D2 (using 40 mm graded stone aggregate) as in coping , bed plates, kerbs etc including necessary formwork, concrete exposed surface shall be finished even and fair without using extra cement complete all as specified and directed.

M&L for PCC 1:2:4 type B1 (using 20 mm graded stone aggregate) as in coping above ground levels , bed plates, kerbs etc including necessary formwork, concrete exposed surface shall be finished even and fair without using extra cement complete all as specified and directed.

M&L for PCC 1:3:6 type C1 (using 20 mm graded stone aggregate) including necessary formwork exposed surface finished even and fair without using extra cement complete all as specified and directed.

Supply and fix in replacement of CPVC pipe in wall or floor without excavation complete with fittings of the following size (outer dia) complete all as specified and directed.

16mm dia

20mm dia

25mm dia

32mm dia

40mm dia

50mm dia