Digging Well, Providing Water Supply, Filtration Units, and Well Recharging Works at Mangattuparamba Campus of Kannur University

Earth work in surface excavation not exceeding 30 cm in depth but exceeding 1.5m in width as well as 10 sqm on plan including disposal of excavated earth up to 50 m and lift up to 1.5 m, disposed soil to be levelled and neatly dressed:All Kinds of soil

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

Laterate masonry with neatly dressed laterate stone of size 40x20x15cm or nearest size in cement mortar 1:6 for super structure above plinth level up to floor two level including all cost of materials, labour charges etc.

12 mm cement plaster of mix:1:4 ( 1 cement : 4 fine sand)

Finishing walls with Acrylic Smooth exterior paint of required shade:New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm)

Providing and fixing PVC pipes includings jointing of pipes with one step PVC solvent cement, trenching, refilling & testing of Joints complete as per direction of engineer in charge.110 mm dia 6Kgf/cm2

Constructing brick masonry manhole in cement mortar 1:4 ( 1 cement : 4 coarse sand) with R.C.C. top with 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size), foundation concrete 1:4:8 mix ( 1 cement : 4 coarse sand : 8 gradedstone aggregate 40 mm nominal size,) inside plastering 12 mm thick with cement mortar 1:3 ( 1 cement : 3 coarse sand) finished with floating coat of neat cement and making channels in cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4

Providing and Fixing filtration unit of 3 layers with sand , gravel and activated carbon Layers. Sand layer of min 600mm thickness, Gravel layer of min 300 mm thickness and activated charcoal of min 200mm thickness. For necessary situations an additional layer of coarse aggregate can be provided min 300mm thickness for pre washing.

Construction of an open well with a diameter of 5 meters and a minimum depth of 15 meters, excavation should begin with clearing the site and digging in stages, ensuring the sides remain stable with appropriate shoring. The laterite for lining should be done using durable bricks and mortar (1:4 cement-sand mix), with concentric rings gradually tapering towards the bottom. The inner surface should be smooth and waterproofed with cement plaster to prevent seepage, while reinforcement (rebar) may be added in deeper sections for structural integrity. A reinforced concrete foundation layer is essential for stability, and a secure cover or grate should be installed for safety. Provision for water extraction, such as a hand or open well pump and electrical starter panel and cabling from the existing panel to starter panel, should be considered, and the well should be tested for water-tightness upon completion to ensure proper functionality and longevity.