REAIRS,REPLACEMENT AND MAINTENANCE WORKS AT STP, FILTERATION PLANT UNDER GE NRC

Excavation in trenches in soft / loose soil not exceeding 1.5 mtr deep and not exceeding 1.5 mtr wide for laying of cable, RCC poles / stays and struts etc. and getting out including trimming sides and forming bottom surface complete all as specified and directed at site.

Returning, filling in including spreading, leveling, watering and well ramming excavated soil in layers not exceeding 25 cm thick each, back in trenches after cables have been laid and tested, poles, stays, struts have been erected and tested , all as specified and directed.

Removing excavated surplus soil (Soft / hard soil) obtained from excavation to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5m above the starting point, complete all as specified and directed.

M&L for Area clearance/levelling/excavation /digging at MES installation including STP ,removing shurbs grass,plant in drying bed 06 Nos Size 12.2 x 7.7 Mtr at any width and length by using JCB complete all as directed by Engineer-in-Charge. Note 1. The cost of POL included in quoted rates . 2. After Start and finsh of the work ,Hrs slips shall be provided by the contracator 3. LOG Sheet shall be maintained.

S&F in replacement Mild steel plates chequered, 5mm thick or over in thickness in available sizes or as directed by Engr-in-Charge including painting with Black oil paint over a coat of red oxide complete all as specified and directed

Dewatering by pumping out raw sewarage water with the help of diesel engine driven pump set or elecric driven pump set or by vaccume pump installed on vehicle from grit tank, aeration tank, primary settling, final settling, digestion chamber, Depot tank and ADGM tank and MAP STP disposing the water through connected hose pipes etc for removal of Sludge /Slit all as specified and directed .

M&L for Taking out sludge /silt removal of complete sludge and silt with help of mechanically operated lift machine/crane,manually, scrapping out complete by vaccum pump installed on vehicle, sludge from the side wall of tank with the help of wire brush , taking out complete sludge and silt and depositing the same to a distance exc 1.00 Km and not exc 1.5 km at a site as directed and clearing the site as directed by Engr-in-Charge. Location :Grit tank, aeration tank, primary settling, final settling, digestion chamber, Depot tank and ADGM tank and Map STP Note:-(i) Contrcator is solely responsible for necessary safety and any mishapening during the subject work. (ii) Quoted rates inclues all T & P, pumps, lighting arrangement and safety eqpts required.

M&L for scrapping of existing surface by use of steel brush of Main Gate STP and painting with two coats of sky blue paint synthetic enamelled paint complete all as directed .

Disconnecting electrically and disengaging the AC Squirrel cage induction motor 3 phase 415 Vlots, 50 Cycles, and taking out to local workshop induction motor 12/10 HP/7.5 HP (940/1540 RPM ) for repair purpose including complete cleaning, varnishing , insulation replacement of DE /NDE bearings and greasing and including shifitng back to location and installing, testing and commissioning after repair complete all as specified and directed. (Note:-(i) T & P and transportation to workshop & return is included in quotated rates (ii) Rewinding will be measure & paid seperately under relavant item of sch.) Notes for ser no 9 to 13 :- (i) Being the essential Sewage treatment work,the Work shall be completed within -02 Days as handed over by Dept ,else penelty of Rs.500 per day shall be imposed. (ii) If the work not be completed within 10 Days, the work shall be carried out at Risk and cost.

Disconnecting electrically and disengaging the AC Squirrel cage induction motor 3 phase 415 Vlots, 50 Cycles, 5 HP, 900 RPM capacity motors from respective non clogging centrifugal pumps/open well submersible pumps, other rotating mechanism etc, removing from foundations, dismantling rotor and stator, bearings, cleaning the dust/dirt, overhauling thoroughly including complete varnishing and reinsulation replacement of DE /NDE bearings ,greasing, reassembling the motor, mounting on the foundations, coupling with non clogging centrifugal pumps/respective mechanism, making the electrical connections, testing and commissioning all as directed. (Note:-(i) T & P and transportation to workshop & return is included in quotated rates (ii) Rewinding will be measure & paid seperately under relavant item of sch.)