REPLACEMENT OF SEWAGE PIPE LINE OF MAP ACCN AND REPAIR OF SEPTIC TANK/SOAKAGE WELLS AT HAPPY VALLEY UNDER GE SHILLONG

Excavation in trenches n.exc 1.5 m wide and n.exc 1.5 M in depth as in foundation in soft or loose soil and getting out complete all as specified and directed.

Excavation in trenches n.exc 1.5 m wide and n.exc 1.5 M in depth as in foundation in hard/dense soil and getting out complete all as specified and directed.

Returning, filling in including spreading, leveling, watering and well ramming in layers n.exc 25 cm thick in soft/loose soil complete all as specified and directed.

Removing of surplus excavated material n.exc 50 m and depositing where directed at a level n.exc 1.5 m above the starting point complete all as specified and directed.

M&L for salt glazed stone ware drain pipes 200 mm bore grade ‘A’ laid in trenches and jointed in cement mortar (1:1) including cement concrete (1:4:8) type D-2 (using 40 mm grade stone aggrete) as in concrete bed to drain pipes, including packing under & haunching against the sides of pipes after they are laid & tested including demolition and breaking up old drain pipes 200 mm dia (salt glazed stone ware, AC or reinforced concrete) pipe set in cement mortar and removing from site of work to a distance n exc 50 mtr complete all as specified and directed.

M&L for salt glazed stone ware drain pipes 150 mm bore grade ‘A’ laid in trenches and jointed in cement mortar (1:1) including cement concrete (1:4:8) type D-2 (using 40 mm grade stone aggrete) as in concrete bed to drain pipes, including packing under & haunching against the sides of pipes after they are laid & tested including demolition and breaking up old drain pipes 150 mm dia (salt glazed stone ware, AC or reinforced concrete) pipe set in cement mortar and removing from site of work to a distance n exc 50 mtr complete all as specified and directed.

M&L for salt glazed stone ware drain pipes 100 mm bore grade ‘A’ laid in trenches and jointed in cement mortar (1:1) including cement concrete (1:4:8) type D-2 (using 40 mm grade stone aggrete) as in concrete bed to drain pipes, including packing under & haunching against the sides of pipes after they are laid & tested including demolition and breaking up old drain pipes 100 mm dia (salt glazed stone ware, AC or reinforced concrete) pipe set in cement mortar and removing from site of work to a distance n exc 50 mtr complete all as specified and directed.

M&L for Reinforced concrete pipes, class NP2, laid and jointed complete with collars 150 mm bore grade ‘A’ laid in trenches and jointed in cement mortar (1:1) including cement concrete (1:4:8) type D-2 (using 40 mm grade stone aggrete) as in concrete bed to drain pipes, including forming cradles after they are laid & tested including demolition and breaking up old drain pipes 150 mm dia (salt glazed stone ware, AC or reinforced concrete) pipe set in cement mortar and removing from site of work to a distance n exc 50mtr complete all as specified and directed.

Cleaning of sewage lines using split Bamboo with a gunny bag piece tied with bamboo with binding wire and inserting the bamboo in sewage lines through manhole/ gully trap clear flow of sewage is observed of 100/150/200 mm bore pipe complete all as specified and directed.

Taking out and removing sludge water/waste materials/foreign materials from septic tank of any number of user and burring the entire sludge under ground in the pit of suitable size and covering the pit with earth or earth mixed rubbish and removing surplus soil to a distance n.exc 50 m including necessary earth work in pit complete all as specified and directed.