CERTAIN REPAIRS MAINTENANCE TO SEWAGE LINE, SEPTIC TANKS, SOAKAGE WELL, MANHOLES ETC IN RR UNITS AT ARNORA, SARNA, SOHANDA, THALELA AND SUIGARH AREA OF 9 SECT UNDER AGE (I) BHALRA

Amount

Excavation in trenches n.exc. 1.5 m wide and n.exc. 1.5 m in depth for foundation or manholes etc., and area n.exc. 10 Sq.m on plan and getting out in any type of soil (Hard/soft) complete all as specified and directed by Engineer-in-Charge.

Demolition and breaking up drain pipes( reinforced concrete) set in cement mortar including concrete bedding and haunching complete all as specified and directed for 150mm dia pipe complete all as specified and directed by Engineer-in-Charge.

M&L Concrete bed to drain pipes including packing under, and haunching against the sides of pipes after they are laid and tested in cement concrete 1:4:8 type D-2 for 150mm dia pipe complete all as specified and directed by Engineer-in-Charge.

M&L for 150 mm bore Reinforced concrete pipes, class NP2, laid and jointed with collars complete all as specified and directed by Engineer-in-Charge.

Supply & Fix in repair, 110 mm bore PVC(SWR) pipes single socketed , in any length with rubber ring joints, laid in trenches or in floors complete all as specified and directed by Engineer-in-Charge.

Supply & Fix in repair, 110mm PVC (SWR) bends any radious complete all as specified and directed by Engineer-in-Charge.

Demolition of brick work or stone masonry built in cement mortar including all quoins, pillars etc. but excluding ashlars facing, dressed stone work and precast concrete articles complete all as specified and directed by Engineer-in-Charge.

M&L for brick work with sub class 'B' bricks straight or curved on plan exceeding 6m mean radius built in cement mortar 1:6 complete all as specified and directed by Engineer-in-Charge.

M&L Rendering 15mm thick in cement mortar 1:4 on fair faces of brick work or concrete surfaces, finished even and smooth without using extra cement, complete all as specified and directed by Engineer-in-Charge.

Demolition of cement concrete (unreinforced) of any description and in any position not otherwise specifically provided for complete all as specified and as directed.

M&L PCC 1:3:6, type C-1 (using 20mm graded aggregate) as in surface channels and drains complete all as specified and directed by Engineer-in-Charge.

Demolition of cement concrete (reinforced) of any description and in any position not otherwise specifically provided complete all as specified and directed by Engineer-in-Charge.

Material & Labour for Providing precast cement concrete type B1 (1:2:4) 20mm graded stone aggregate as in landings, cover slabs (for man holes etc.) chullah hoods, chajjas, water troughs, mangers, shelves and similar articles set in cement mortar ( 1:6 ) complete all as specified and directed by Engineer-in-Charge.

Material & Labour for 10mm dia and over TMT bars, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed by Engineer-in-Charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick any type of soil, complete all as specified and directed by Engineer-in-Charge.

Removing excavated soils to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed by Engineer-in-Charge.

Cutting into existing manholes for connecting new drains , making good to pipe and rendering , cutting out existing benching for and forming branch channel ( 1/2 round or 3/4 section) in cement concrete 1:2:4, type B-1 smooth finished and reforming benching as required for 150mm bore pipe, complete all as specified and directed by Engineer-in-Charge.

Cleaning the blockage in IWC, EWC including CI pipe after opening the oval access door of CI bend , chamber including replace the broken chamber cover etc in position and removing the rubbish to a distance n.exc 50 mtr complete all as specified and directed by Engineer-in-Charge.

Cleaning / clearing of chocked sewage line (including manholes) 100mm to 150mm bore of any description, underground at any depth, removing any type of blockage including desilting, descaling & de-chocking of drains as well as manholes with combined high pressure rodding and flushing after clearing of manholes, including removing the sludge in the tank to a place outside cantonment at the place meant for the purpose by local municipality, complete all as specified and directed by Engineer-in-Charge. Note : The contractor shall keep the sewage line functional throughout the contract period. The unit rate quoted by the contractor shall be deemed to be inclusive this aspect.

Dewatering / pumping/ bailing out of contaminated water from septic tank/soakage wells alongwith inlet / outlet chambers, manholes, soakage pits etc. of any capacity after plugging the incoming sewage lines by suction (vaccum) type machine mounted on LCV facility of high pressure vaccum including removing the contaminated water in same tank to a place outside the defence land complete all as specified and directed by Engineer-in-Charge.

Desludging of sludge from septic tank by manually / mechanically alongwith inlet / outlet chambers, manholes etc. of any capacity after plugging the incoming sewage. Removing of sludge to outside the defence land and burying the same in newly excavated pit of suitable size and covering the same with 25 cm thick layer of earth and spreading bleaching powder over the covered area, complete all as specified and directed by Engineer-in-Charge.

M/S MAHALUXMI BUILDERS (BID ID -3382147)

M/S KOTWAL CONSTRUCTIONS (BID ID -3381750)