SPECIAL REPAIRS TO SEWAGE SYSTEM AT CERTAIN LOCATIONS (PHASE-II) AT HQTC BANGLAORE

Cleaning of blockage in sewage pipe lines between manhole to manhole of any bore of pipe and in any depth distance not exc 40m and removing the blockages using by vehicle mounted jet pressure or vaccum system cleaning of pipes and taking out all debries, sludge or any solid/ foreign materials from sewage line and flushing with water and testing after cleaning for blockages/ clogging etc., including removing and disinfacted the sludge within 50m distance including necessary excavation of pits and returning, filing in sprinkling of bleaching powder @ 0.50 kg/sqm and dressing of surplus soil, ground to slope if required complete all as specified and as directed by Engr-in-charge.

Material and labour for de-silting and cleaning of manholes (as existing shape and size) of depth not exc 1m by pumping out the sewage water complete removing the sluge and other materials from manholes by mechanical means, rodding or any other suitable means removing the accumulated night soil, sludge and other materials obtained from sewage lines and disinfected the sludge within 50m distance including necessary excavation of pits and returning, filing in sprinkling of bleaching powder @ 0.50 kg/sqm and dressing of surplus soil, ground to slope if required and well flushing the manholes with water complete all as specified and as directed by Engr-in-charge.

Material and labour for de-silting and cleaning of manholes (as existing shape and size) of depth exc 1m but not exc 2m by pumping out the sewage water complete removing the sluge and other materials from manholes by mechanical means, rodding or any other suitable means removing the accumulated night soil, sludge and other materials obtained from sewage lines and disinfected the sludge within 50m distance including necessary excavation of pits and returning, filing in sprinkling of bleaching powder @ 0.50 kg/sqm and dressing of surplus soil, ground to slope if required and well flushing the manholes with water complete all as specified and as directed by Engr-in-charge.

Material and labour for de-silting and cleaning of manholes (as existing shape and size) of depth exc 2m but not exc 3m by pumping out the sewage water complete removing the sluge and other materials from manholes by mechanical means, rodding or any other suitable means removing the accumulated night soil, sludge and other materials obtained from sewage lines and disinfected the sludge within 50m distance including necessary excavation of pits and returning, filling in sprinkling of bleaching powder @ 0.50 kg/sqm and dressing of surplus soil, ground to slope if required and well flushing the manholes with water complete all as specified and as directed by Engr-in-charge.

Material and labour for de-silting and cleaning of septictank of any depth (as existing shape and size) by pumping out the sewage water complete removing the sluge and other materials from septic tank by mechanical means, rodding or any other suitable means removing the accumulated night soil, sludge and other materials obtained from septic tank and disinfected the sludge out side the MOD land ground to slope if required and well flushing the manholes and septic tank with water complete all as specified and as directed by Engr-in-charge.

Excavation in trenches not exc 1.5m wide and not exc 1.5m depth for foundation manholes etc., and getting out in hard /dense soil complete all as specified and as directed by Engr-in-charge.

Excavation in trenches not exc 1.5m wide and exc 1.5m but not exc 3m depth for foundation manholes etc., and getting out in hard /dense soil complete all as specified and as directed by Engr-in-charge.

Excavation in trenches not exc 1.5m wide and not exc 1.5m depth for foundation manholes etc., and getting out in hard rock complete all as specified and as directed by Engr-in-charge.

Excavation in trenches not exc 1.5m wide and exc 1.5m but not exc 3m depth for foundation manholes etc., and getting out in hard rock complete all as specified and as directed by Engr-in-charge.

Returning filling in including spreading, levelling, watering and well ramming in layers not exc 25 cm thick in soft /loose soil complete all as specified and as directed by Engr-in-charge.