M/O Completed Scheme Under North Zone . Scavenging Of Roads , Road Berms , Parking Area Etc . At 384 M . S . Houses In Pkt-I , Sector-A-9 , Narela . , Daily Sweeping And Cleaning Of Roads , Road Berms , Parking Area , Stilt , Terrace , Corridor , Stair Case , Lift Lobby In All Floors , Basement Etc . Disposal Of Sweeping Material , Malba , Garbage , Rubbish I/C Dead Animals Etc . To The Dustbin/Dhalao For All Leads & Lift I/C Cost Of Bamboo , Broom , Wheel Borrow And All Required T & P +B6:F17and All Operation Completed As Per Direction Of Engineer-In-Charge . , Cleaning And Desilting Of Covered S . W . Drain For All Width And Depth Mechanically/ Manually By Excavation Of Malba/Sludge/Silt For All Leads And Lift Including Removal And Placing Drain Covers Complete As Per Direction Engineer-In-Charge . , Cleaning And Desilting Of Sewer Line And Manhole Of All Dia Meter And Depth Having Sludge , Malba By Mechanical/Manual Means Including De-Watering Of Manholes And Removal Of Desilted Material With All Primary Precaution And Safety Equipment To Avoid Any Accident At Site Of Work Complete As Per Direction Engineer-In-Charge . ( Functioning Of Sewer Line Will Be Maintained By The Agency For The Period Six Months ( I . E . During The Contract Period ) . , Cleaning Of Under Ground Sump , Over Head R . C . C . Tank ( Independent Staging ) Including Disposal Of Slit And Rubbish , All As Per Direction Of Engineer-In-Charge . The Cleaning Shall Consist Following Operations:- ( I ) Tank Shall Be Emptied Of Water By Pumping & Bottom Shall Be Cleaned Of Slit And Other Deposits . , Ii ) Entire Surface Area Of The Sump Shall Then Scrubbed Thoroughly With Wire Brush Etc . And Pressure Washed With Water . , Iiii ) Chlorination Of Rcc Internal Surface By Liquid Chlorine . , Iv ) The Treated Surface Shall Be Dried Using Air Jetting And All Loose Particles Shall Be Removal From The Surface . , V ) Finally The Surface Shall Be Treated With Ultraviolet Radiation Etc . As Per Direction Of Engineer-In-Charge . , Disposal Of Building Rubbish / Malba / Similar Unserviceable , Dismantled Or Waste Materials By Mechanical Means , Including Loading , Transporting , Unloading To Approved Municipal Dumping Ground Or As Approved By Engineer-In-Charge , Beyond 50 M Initial Lead , For All Leads Including All Lifts Involved . , Disinfecting C . I . Water Mains By Flushing With Water Containing Bleaching Powder @ 0 . 5 Gms Per Litre Of Water And Cleaning The Same With Fresh Water , Operation To Be Repeated Three Times Including Getting The Sample Of Water From The Disinfected Main Tested In The Municipal Laboratory . A ) 150 Mm Diameter C . I . Pipe . , Testing Of Water Sample For Drinking Purpose Collected From Ugr & Overhead Tank From Dda Approved Labs As Per Direction Of Engineer-In-Charge . A ) Complete Test . , Pumping Out Water Caused By Springs , Tidal Or River Seepage , Broken Water Mains Or Drains And The Like .