REPAIR/REPLACEMENT OF DAMAGED WORN OUT WATER MAINS INCL CONTROL VALVES AT OLD AND NEW JACKWELL, RHPD, ENGR SUB PARK, A AND B ZONE, EME WKSP AND REPAIR/RENEWAL OF EXTERNAL WATER SUPPLY PIPE AT FAD AREA UNDER GE BENGDUBI

Amount

SCHEDULE 'A'

Excavation in trenches not exceeding 1.50 m wide and 1.5 mtr depth for foundation etc, not exc 10 sqm on plan and getting out in soft/loose soil complete all as specified and as directed.

Returning filling in including spreading, leveling watering well ramming in layers not exc 25cm thick complete all as specified and as directed.

Removing excavated materials (soils) not exc. 50m and depositing where directed at a level not exc. 1.5m above the starting point complete all as specified and as directed.

M&L for PCC 1:3:6 type C2 using 40 mm grade cruhed stone aggregate for making good the road/path etc.

M&L for surface excavation n.exc 30 cm deep and averaging 15 cm deep getting out in soft/loose soil for cleaning and cutting of grass/bushes (at zero level) in and around the installation / yard and spreading thin layer of anti-vegitaion chemical to prevent abnormal growth of grass/bushes including removal of surplus soil all as directed. (Note :- The above item shall be carried out through out the contract period as and when required and shall measured and paid once only)

Taking down GI pipes 15 mm dia from trenches/walls etc all as directed

Taking down GI pipes 20 mm dia from trenches/walls etc all as directed

Taking down GI pipes 25 mm dia from trenches/walls etc all as directed

Taking down GI pipes 40 mm dia from trenches/walls etc all as directed

Taking down GI pipes 50 mm dia from trenches/walls etc all as directed

Taking down GI pipes 80 mm dia from trenches/walls etc all as directed

Taking down GI pipes 100 mm dia from trenches/walls etc all as directed

M&L for steel water tubing medium grade galvanised with new fitting laid in trenches for the following sizes :-

(a) 15 mm Bore.

(b) 20 mm Bore.

(c) 25 mm Bore.

(d) 40 mm Bore.

(e) 50 mm Bore.

(f) 80 mm Bore.

(g) 100 mm Bore.

Labour only for refixing steel water tubing medium grade galvanised with new fitting laid in trenches/wall obtained from item No. 6 to 12 here-in-before for the following sizes :

(a) 15 mm Bore.

(b) 20 mm Bore.

(c) 25 mm Bore.

(d) 40 mm Bore.

(e) 50 mm Bore.

(f) 80 mm Bore.

(g) 100 mm Bore.

Taking down CI pipes 80 mm dia, Checking, cleaning internally by using steel brush /scrubber throughly to remove all rusts/slit/mud etc from pipe and Keep the Serviceable pipes & Lead in safe custody for refixing in existing/new position including replacing worn out Sockets, nuts, bolts, flange, gasket complete all as directed.

Ditto all as per item No. 15.00 above but for 100 mm dia.

Ditto all as per item No. 15.00 above but for 150 mm dia.

Ditto all as per item No. 15.00 above but for 200 mm dia.

Ditto all as per item No. 15.00 above but for 250 mm dia.

Ditto all as per item No. 15.00 above but for 300 mm dia.

Labour only for refixing CI Pipes any type with fittings fixed to floor / laid in trench obtained from item No. 15 to 20 here-in-before for the following sizes :-

(a) 80 mm Bore.

(b) 100 mm Bore.

(c) 150 mm Bore.

(d) 200 mm Bore.

(e) 250 mm Bore.

(f) 300 mm Bore.

S&F Cast Iron pipes with Spigot and Socket ends, Centrifugally cast, class 'A' in any length fixed to floor / laid in trench for the following size all as directed. (Make Electrosteel/Kejriwal).

(a) 80 mm Bore.

(b) 100 mm Bore.

(c) 150 mm Bore.

(d) 200 mm Bore.

(e) 250 mm Bore.

(e) 300 mm Bore.

S&F Cast Iron pipes with flanged ends, vertically cast, class 'A' in any length fixed to floor / laid in trench for the following size all as directed. (Make Electrosteel/Kejriwal)

(a) 80 mm Bore.

(b) 100 mm Bore.

(c) 150 mm Bore.

(d) 200 mm Bore.

M&L for attending pipe line break down of CI pipe of 80 mm dia by making lead joint with lead and spun yarn and moulding clay including taking up/down pipe using chain pulley or rope and excavation in any type of soil,returning filling and removel of soil all as specified and testing of pipe line complete all as directed.

Ditto all as per item no. 24.00 here-in-before but CI pipe of dia 100 mm

Ditto all as per item no. 24.00 here-in-before but CI pipe of dia 150 mm

Ditto all as per item no. 24.00 here-in-before but CI pipe of dia 200 mm

Ditto all as per item no. 24.00 here-in-before but CI pipe of dia 250 mm

Ditto all as per item no. 24.00 here-in-before but CI pipe of dia 300 mm

M&L for run lead joints for CI pipe of following bore of pipe with spun yarn and complete testing :-

(a) 80 mm Bore.

(b) 100 mm Bore.

(c) 150 mm Bore.

(d) 200 mm Bore.

(e) 250 mm Bore.

(f) 300 mm Bore.

Labour only for lead joints of following bore of pipe with old lead (obtained from Item Sr no. 15.00 to 20.00 above) and new spun yarn for following bore of pipes ;-

(a) 80 mm Bore.

(b) 100 mm Bore.

(c) 150 mm Bore.

(d) 200 mm Bore.

(e) 250 mm Bore.

(e) 300 mm Bore.

M&L for Tyton rubber joint of size 150 mm dia complete all as specified and directed.

M&L for drilling and tapping cast iron water mains (in position) for branch connections of internal dia 20 mm all as directed

Taking down unserviceable CI sluice valve 80 mm dia complete all as directed.

Taking down unserviceable CI sluice valve 100 mm dia complete all as directed.

Taking down unserviceable CI sluice valve 150 mm dia complete all as directed.

Taking down unserviceable CI sluice valve 200 mm dia complete all as directed.

Taking down unserviceable CI sluice valve 250 mm dia complete all as directed.

S&F sluice valve cast iron confirming to IS : 14846 both end flanged with S/S spindle with nut class PN - 1.0 ISI marked complete with hand wheel nuts, bolts, washers & rubber gusket etc for the sizescomplete all as specified & directed. (Make- Upadhya/Venus/Hazra/Kirloskar)

(a) 80 mm bore

(b) 100 mm bore

(c) 150 mm bore

(d) 200 mm bore

(e) 250 mm bore

S&F Cast Iron Air release valves conforming to IS 14845-2000 with tamper proof arrangement of size 80 mm bore incl taking down of old unsv one all as directed. (Make:- Upadhya / Venus / Hazra / Kirloskar)

S&F Cast Iron Air release valves conforming to IS 14845-2000 with tamper proof arrangement of size 100 mm bore incl taking down of old unsv one all as directed. (Make:- Upadhya / Venus / Hazra / Kirloskar)

S&F bends (any type, radius and angel) tapers any type (straingh, bend, increasing, decreasing or double socket etc) tee pieces single brancehs 'Y' junction double branch, cross (all socket or socket and spigot) collars, caps and plugs for following bore of pipes :-

(a) Upto 150 mm bore

(b) 200 mm to 300 mm bore

Taking down unserviceable gate valve 20mm, 25mm, 40 mm & 50mm dia complete all as directed.

S&F Gun metal gate valve, Cast Copper alloy, screwed down high pressure with Crutch or Butterfly handle screwed both ends for iron pipe complete all as specified and directed for the following size:-

Taking down unserviceable float valve from PVC Tank with fittings of size 20/25 mm complete all as directed.

S&F float valve with complete fittings for PVC Tank of dia 20 mm all as directed.

S&F float valve with complete fittings for PVC Tank of dia 25 mm all as directed.

S&F PVC Bib tap of size 15mm/20mm/25mm all as directed.

M&L for construction of brick masonry valve pit of size 900x900x900mm (internal dimension) one brick thick wall in CM 1:4 on 100mm thick PCC 1:4:8 type D-2 (40mm graded aggregate) as in foundation, and 15mm thick rendering in cement mortor (1:4) internally, externally up to 15cm below GL, providing valve pit cover made of 3 mm thick MS sheet/plate, welded with 40 X 40 X 5mm angle iron frame fixed on top of valve pit by means of hold fast 150mm long, embeded in PCC 1:2:4 type B-1 (20mm graded aggregate) block of size 230 x 200 x 100mm and provision of hinges, handle and locking arrangement including two coats of anti-corrosive paint over a coat of red oxide zinc chrome primer and necessary excavation and earth work in soft/loose soil including dismantling of existing valve pit complete all as specified & directed.

Cleaning of Overhead Water Tank all as specified here-in-after and as directed of following types and capacity of Tank is 100000 Gallon (Appx internal surfaces area 450 Sqm & appx steel pipe surface area 3 Sqm) :- (a) Washout the residual water from water tank by using pump set or bucket & mug etc complete all as directed. (b) Removing muds, silt sand etc from inside of tank and depositing in pit (depth of pit not less than 1.5 mtr) to a distance n.exc 50 mtr from tank including exacavation of suitable size of pit and returning, filling and cleaning of tank with water and all as directed. (c ) Removing moulds, moss,foreign materials etc from the internal surfaces of tank and from the mouth of pipe by scrapping with steel brushes or steel scrapping, disposing off waste materials to a distance n.exc 50 mtr and cleaning the internal surface with clean water. (d) Spreading the thin layers of bleaching powder over the entire surface of tank internally and washing with clean water. (e) Applying one coat of lime wash to the internal surfaces of wall.

(f) Applying two coats of black bituminous paints over a coat of primer after necessary preparation of surface to the steel items, internal & external pipes etc of approved quality and suitable for use of drinking purpose non-toxic and non-dissolving in water. (g) Writing the following word to the external wall after necessary two coats of black paint (size 60x40 m) with 50 mm size white letter :- CLEANED ON:- DD:MM:YYYY CAPACITY = GALLONS STAGGING = MTRS (applicable for overhead reservior only). NOTE :- 1. Contractor will submit tank wise cleaning programme at least 10 days advance to the Engineer-in-Charge/GE for intimation of user's. NOTE :- 2. Complete above mentioned cleaning works of each reservoir must be completed on the same day for supply uninterrupted water to the user's.

Ditto all as per item No. 50.00 here-in-before but for overhead tank of capacity 50,000 gallons (appx internal surface area, 225 sqm & appx steel/pipe surface area 2 sqm.)

Ditto all as per item No. 50.00 here-in-before but for overhead tank of capacity 40,000 gallons (appx internal surface area, 190 Sqm & appx steel pipe surface area 1.5 Sqm.)

Ditto all as per item No. 50.00 here-in-before but for overhead tank of capacity 20,000 gallons (appx internal surface area, 125 Sqm & appx steel pipe surface area 1 Sqm.)

S&F MS pipe including cutting for suitable size as directed, specials Tread with sockets or flange with MS Nut-Bolts on both end, nominal dia 100 mm all as specified and directed.

Ditto all as per item No. 54.00 here-in-before but for 150 mm dia.

M&L for repairing of fire hydrants upto 65 mm dia with single flanged end, 'pit' pattern ,including jointing only one flanged joint all as specified and directed.

Ditto all as per item No. 56.00 here-in-before but pillar pattern fire hydrant

Fixing only Mouth washer for fire hydrant (as per sample for item no.52 & 53) all as specified and directed.

Fixing only brass nozzle with lock nut and check nut (as per sample for item no.56.00 & 57.00) all as specified and directed.

S&F 63MM, 3-Inch Gun metal Brass Single headed Fire Hydrant volve ISI Mark all as per Specified and Directed

(Note : The Scope of Work contained in 'Sch of Credit' amounting to Rs. 3,51,055.00 (refer Tender Srl Page No 33). The Quoted sum shall be arrived at after deducting the amount of “Sch of Credit” from the total amount of the ‘BoQ’

M/S LOKENATH ENTERPRISE

M/S G D CONSTRUCTION

M/S DUTTA CONSTRUCTION CO

GOUTAM KUMAR GHOSH

MS CHOWDHURY ENTERPRISE