Rejuvenation of existing open wells RWH Pathrajkali Ammal Kovil Street in East Zone within the Coimbatore City Municipal Corporation (CCMC) Area in Ward No 60 East Zone

Clearing of bushes, grass, and undergrowth around and inside the open well area including uprooting of vegetation and disposal of the same up to a lead of 50 meters, complete as directed by the Engineer-in-Charge.

For Removing Thick Bushes In Well Providing and fixing double scaffolding system (cup lock type) on the exterior side of building/structure, including additional rows of scaffolding in a stepped manner as per requirement of site, made with 40 mm dia M.S. tube, placed 1.5 metre centre to centre, horizontal and vertical tubes joint with cup and lock system with M.S. tubes, M.S. tube challis, M.S. clamps and staircase system in the scaffolding for working platform etc., and maintaining it in a serviceable condition for execution of work of cleaning and/or pointing and/or applying chemical and removing it thereafter. The scaffolding system shall be stiffened with bracings, runners, connecting with the building etc., wherever required, if feasible, for inspection of work at required locations with essential safety features for the workmen etc., complete as per directions and approval of Engineer-in-charge.

ORDINARY SOIL (SS20B) Earth work excavating and depositing on bank with initial lead of 10m & initial lift of 2m in Sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam and ordinary soil including excavated earth (SS20B)

Excavation for PVC pipes (Structures to Well)

Removal of sludge, slush, silt, debris, plastic waste, water weeds, using appropriate special machineries like dredger along the cutter section having maximum capacity of 300cum solids per hour which can dredge to a maximum of 8.00m depth and dispose the dredged material to a maximum of 4Km on either one of the outer slope of river banks whichever is convenient as per the prevailing site conditions for easy conveyance and jungle clearance by pumping operation along with suitable pipeline and other required accessories with other mechanical devices for the entire stretch to reach the bank. the rates including cost of transportation, Mobilization and demobilization of machinery, hire charges, cost of fuel, labour charges for surveying and operation of dredger, crew and other related works etc. [WR-0004, Pg no.312]

Rate for Lift above 8.00 Mtr.

7.0 to 8.0 Mtr.

8.0 to 10.0 mtr.

Dewatering using 3HP to 70HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back,loading, unloading and any other incidental charges etc., complete. [WD-W0908, Pg. No.207 (2024-25)]

Painting two coats of newly plastered wall surface with ready mixed Cement paint of first quality and of approved colour over apriming coat including preparing the surface, clean removal of dirt and including necessary plaster of paris putty wherever required etc., complete complying with standard specification. (Sl.No.395)

Painting old/new iron work over well ( grills, weldmesh sceens etc) , two coats over one coat of primer

Construction of underground filter having size- 1mx1m. Inside with 230mm thick brick masonry, with inside-outside plaster, bed concrete and coping in M-15 Grade including filling filter sand (of size 1mm to 2mm) 500mm thick over garvel (of size 5 to 10mm) 500mm thick over Boulder (of size 5 to 20mm) 500mm thick with all labour material etc. complete.

Construction of underground Chamber having size- 0.60mx0.60m inside with 230mm thick brick masonry, with inside-outside plaster, bed concrete and coping in M-15 Grade including excavation and necessary labour and material etc. complete.

Providing and fixing M.S Ladder 600mm wide, with vertical angle 65x65x6, Horizontal 16mm Dia. MS Bar @ 300mm C/c with 50x50x6 MS angle support @ 3000mm C/c with necessasry painting and fixing in Concrete block etc. complete.

Supplying PVC Pipes for rainwater harvesting [working pressure: 4kg/Sq.cm] (M0873) PWD DSR Pg. No. 146 (2024-25)

160mm Dia

Lowering PVC/ DWSC rigid pipes and specials to trench and laying to proper grade and alignment, jointing with PVC couplers with cement paste.

160mm Dia

Supplying laying and jointing G.I. Pipes of approved quality and best varity of B Class pipe of the following sizes including fixing G.I specials but excluding cost of such specials cutting threading of pipes and fixing to wall with necessary teak wood plugs, clamps and screws masking holes on the wall or drilling holes in roof and making good the dismandled portions to original conditions with necessary brick work and concrete and plastering where ever necessary with necessary scafolding charges. The pipes are to be painted with two coats of good variety and best approved quality of synthetic enamel paint over a priming coat of red-oxide primer etc.,

25mm Dia

Panel board (for 7.5hp Motor)

Supplying and erecting 525 V 3 phase, 50 Hz., APP type capacitor having minimum overcurrent capacity of 1.8 In, peak inrush current capacity 300 In and minimum life 150000 hours kVAr bank of all polypropylene condensers (APP) with the standard capacities of 2, 3, 5, 7, 10, 12.5 and 15 kVAr units of P.F. correction for operation on 3 phase 50 Hz. with externally discharging resistances, earthing terminals and built on angle iron or channel iron frame work and provided with terminal cover box complete erected on provided iron bracket or on floor duly tested by licensee.

( 7.5HP-5.5KVAR )

Supply of 2 core 4 sq.mm Aluminium conductor PVC insulated LTUG cable

Maintenance of 7.5 hp pump including servicing and maintenance of key items such as; Lubrication, bearing, Seals & Gasket, Impeller, Valves, Piping, Electrical components, performance monitoring, Cleaning etc.

Maintenance for 3 Years

For First year

For Second year

For Third year