PERIODICAL CLEANING/ MAINT OF SOLAPOKHARI PUMP HOUSE FILTRATION PLANTS, SEDIMENTATION TANKS, CLEAR WATER COLLECTION SUMPS, OVER HEAD TANK ETC, REPAIRS TO INSTALLED PUMPS/ MOTORS / MACHINERY AND CONNECTED VARIOUS ITEMS INCLRISING AT INS CHILKA

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m depth and getting out in any type of soil complete all as specified and as 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 as directed.

Removing excavated soil to distance not exceeding 50 mtrs and depositing where directed at a level not exceeding 1.5 Mtr above the starting point all as specified and directed.

M&L for run lead joints for socket spigot pipe ends and fittings of 300 mm dia size complete all as specified and directed.

M&L for run lead joints for socket spigot pipe ends and fittings of 250 mm dia size complete all as specified and directed.

M&L for run lead joints for socket spigot pipe ends and fittings of 150 mm dia size complete all as specified and directed.

M&L for run lead joints for socket spigot pipe ends and fittings of 80 mm dia size complete all as specified and directed.

M & L for periodical cleaning by emptying the tank duly removing the sludge, scrubbing, cleaning the inner surface with wire brushes, bleaching powder of clarifloculator (size 4.25 X 4.2 X 4.4M) RCC plates 960 Nos (Size 1 X 1m). complete all as specified and directed.

M & L for periodical cleaning by emptying the tank duly removing the sludge, scrubbing, cleaning the inner surface with wire brushes, bleaching powder of sedimentation Tank (Size 4.2 X 1.2 X 3.1 M) and (2.2 X 0.95 X 3.1m) gravels tank 4.2 X 1.2 X 1.6M) taking out the gravel layers complete wash, clean and commissioning complete all as specifiied directed Note : sedimentation tank, settler tank and gravel tank shall be measured as one unit.

Periodical cleaning of MIMCO filter bed (filter bed size 2.5 X 2.0 X 3.0M) chamber by taking out the sand and gravel layers complete duly disconnecting the inlet PVC pipe of 50mm dia and clean, wash and refix and commissioning complete all as directed. Note (i) Replacement of filter media will be measured and paid separately. (ii) Broken 50mm dia PVC pipe are to be replaced and will be measured and paid separately.