Annual Repair And Maintenance Of To Nrb At Old Secretariat, Delhi During 2024-25. (Sh Cleaning Of Sewer Line, Water Tanks, Road Gully Chambers ), Delhi-Delhi
TDR : 48093528
Tender Notice
BOQ
Expired
Delhi
Delhi
Annual Repair And Maintenance Of To Nrb At Old Secretariat, Delhi During 2024-25. (Sh Cleaning Of Sewer Line, Water Tanks, Road Gully Chambers )
Name of Work: A/R & M/O to NRB at old Secretariat, Delhi during 2024-25. (SH: Cleaning of sewer line, water tanks, road gully chambers )
Sl. No.
Item Description
1
Cleaning of terrace/loft water storage tank (inside surface area) upto 2000 litre capacity at all heights with coconut brushes, duster etc., removal of silt, rubbish from the tank and cleaning the tank with fresh water disinfecting with bleaching powder @ 0.5gm per litre capacity of tank including marking the date of cleaning on the side of tank body with the help of stencil and paint and disposing of malba all complete as per direction of Engineer- in-Charge. (The old date already written on tank should be removed with paint remover or black paint and if date is not written with the stencil or old date is not removed deduction will be made @ Rs. 0.10 per litre) (if during cleaning any GI fittings or ball cock is damaged that is to be repaired by contractor at his own cost and nothing extra will be paid on this account)
2
Cleaning and desilting of gully trap chamber, including removal of rubbish mixed with earth etc. and disposal of same, all as per the direction of Engineer-in-charge.
3
Cleaning of chocked sewer line by diesel running vehicle mounting hydraulic operated high pressure suction cum jetting sewer cleaning machine fitted with pump having 4000 litres suction capacity and 6000 litres water jetting tank capacity including skilled operator, supervising engineer etc. for cleaning and partial desilting of manholes and dechocking of sewer lines. Dechocking and flushing of sewer line from one manhole to another by high pressure jetting system of 2200 PSI for sewer line from 150 mm dia upto 300 mm
4
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 consistfollowing operations:- (i)Tank shall be emptied of water by pumping & bottom shall be cleaned of silt and otherdeposits. (ii) Entire surface area of the sump shall then scrubbed thoroughly with wire brush etc. and pressure washed with water. (iii) 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.
5
Modified Estimate Cost after correction on DSR items on a/c of GST@ 0.973 i.e. deduct for effect of correction factor on Item No. 1 to 4 (1-0.973)=0.027
We takes all possible care for accurate & authentic tender information, however Users
are requested to refer Original source of Tender Notice / Tender Document published by
Tender Issuing Agency before taking any call regarding this tender.
