Roof top rain water harvesting system for St. Francis Xavier High School at Macazan in Cuncolim Constituency.

Amount

Earthwork in excavation by mechanical means in all types of strata comprising any of the material such as soil, sand, silt, clay, gravel, moorum of all varieties, shingles pebbles, all types of conglomerates all types of laterite rocks, soft rock, ordinary rock disintegrated rock fissured shuttered rock decomposed or weathered rock and all such other material in full or in parts as the case may be adopting any approved method or methods as may be convenient or permitted including chiseling wedging etc but blasting prohibited in all conditions such as dry moist saturated submerged foul conditions etc. including pumping or bailing out water dewatering incl setting out constructed of shoring and beracing removal of stump and other deleterious matter dressing of sides and bottom and back filling the excavated earth to the extent required and disposal of excavated sil rock at specified areas with all leads and lifts etc as per specification and drawing and directed by the Engineer-in-charge etc. complete.

Rubble packing with hard laterite stone under floors including watering ramming and consolidating etc. in pipeline trenches and other foundations complete.

Providing & laying cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded granitic or basaltic stone aggrt. 20 mm. nominal size) excluding cost of centering, shuttering and finishing in: All works upto Plinth level.

Laterite masonry in neatly dressed stones of size as specified in cement mortar 1: 4 (1 cement: 4 coarse sand) in foundation and basement.

Kotah stone slab flooring over 20 mm (average) thick base laid over & jointed with grey cement slurry mixed with pigment to match the shade of the slab including rubbing & complete with base of lime mortar 1:1:1 (1 lime putty : 1 surkhi : 1 coarse sand) .

Supply/installation of UPVC Gutter system at eaves level for water collection for roof Rainwater harvesting system made out of reputed fitting of Watertec, Asral or equivalent make in proper line and level etc. complete as directed by the Engineer incharge.

Providing and fixing Shakti / Boss or equivalent water tank of 5000 litre with all connections / fittings in proper line and level complete, including fixing bib cock to tank and overflow of tank to percolation pit and laying of different layers of percolation materials in percolation pit as per drawings as directed by the Engineer incharge.

Supply/installation of online Rainwater filter custom made for roof Rainwater harvesting system made out of reputed fitting with valves, inlet, outlet, filtering complete unit suitable to fix along the roof water outlet pipe and all fittings of Watertec, Asral or equivalent make for connection or Rainy Filter.