Assam Rifles-AR has published Tender For Special Repair Of Water Supply System Incl Replacement Of Pipe Line And Allied Works At Transit Camp , Minuthong. Submission Date for this Tender is 31-12-2022. Water Supply Project Tenders in imphal Manipur. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 28-Nov-2022 | 14064/04/IGAR(S)/2022/1020 | Date | 31-12-2022 |
| Sl. No. | Item Description |
| 1 | SCHEDULE‘A’ PART-I |
| 2 | Opening of man hole cover of pressure sand filter and taking out of worn out filtering sand and gravel of different grade and sizes andremovalto a place as directed by Engr-in-charge, |
| 3 | Removal of complete PVC push type strainer from bed of filter and cleaning of serviceable strainers with acid and refixing it in old position. |
| 4 | Removal of old painted internal surface of vessel with scrubbers or blowing offby blow lamp and repainting it with two coats of non poisonous, anti corrosive black bituminous paint. |
| 5 | Supply and fixing of 10mm Push fit type strainers as replacement of damaged strainers. |
| 6 | Replacement of 3mm thick black rubber gasket for manhole cover of vessel. |
| 7 | Replacement of worn out Drain Pipe of vessel - 80mm dia mild steel tube,medium grade confirming to IS 1161 of size 1.62 mtr long with 80mm dia flange having four hole welded at both ends including one socket with plug for drain. |
| 8 | Replacement of Cast iron Diaphragm type angular valve, flanged end,of size 25mm dia for Air Line, |
| 9 | Replacement of two nos Pressure Gauge ( for measuring pressuredifference at both ends) of size 100mm dia with capacity upto 7 kg pressure, make- RMCO or equvalantincluding fixing with Brass Cock and G.I.Nipple. |
| 10 | M/L for Charging the vessel with specially selected filtering sand and graded gravel charged as per suitable size and grade. |
| 11 | Painting of external surface of vessel and mild steel tubes with two coats of synthetic enamelled paint of approved make and colour over a coatof red oxide primer after removal of old painted surface byscrubbing with paint removers orburning off by blow lamps. |
| 12 | Replacement of cast iron sluice valve with S/S or GM spindle confirmingto relevant IS code of size 100 mm and CL PN1.0 |
| 13 | Providing and fixing 3 layer PP-R (Poly propylene Random copolymer) pipes confirming to IS:15801 UV stabilized & anti -microbial fusion welded, having thermal stability for hot & cold water supply, including all PP - R plain & brass threaded polypropylene random fittings, including trenching, refilling & testing of joints complete as per direction of Engineer-in-Charge PN - 10 Pipe, 75 mm OD (SDR-11) |
| 14 | Providing and fixing PPR Unions PPR Union 75 mm |
| 15 | Providing and fixing 3 layer PP-R (Poly propylene Random copolymer) pipes confirming to IS:15801 UV stabilized & anti -microbial fusion welded, having thermal stability for hot & cold water supply, including all PP - R plain & brass threaded polypropylene random fittings, including trenching, refilling & testing of joints complete as per direction of Engineer-in-Charge PN - 10 Pipe, 50 mm OD (SDR-11) |
| 16 | Providing and fixing 3 layer PP-R (Poly propylene Random copolymer) pipes confirming to IS:15801 UV stabilized & anti -microbial fusion welded, having thermal stability for hot & cold water supply, including all PP - R plain & brass threaded polypropylene random fittings, including trenching, refilling & testing of joints complete as per direction of Engineer-in-Charge PN - 10 Pipe,40 mm OD (SDR-11) |
| 17 | Providing and fixing 3 layer PP-R (Poly propylene Random copolymer) pipes confirming to IS:15801 UV stabilized & anti microbial fusion welded, having thermal stability for hot & cold water supply, including all PP - R plain & brass threaded polypropylene random fittings, including trenching, refilling & testing of joints complete as per direction of Engineer-in-Charge PN - 10 Pipe,25 mm OD (SDR-11) |
| 18 | Providing and fixing PPR Unions PPR Union 50mm |
| 19 | Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) : 80 mm nominal bore |
| 20 | Providing and fixing ball valve (brass) of approved quality, High or low pressure, with plastic floats complete 25 mm nominal bore |
| 21 | Providing and fixing 3 layer PP-R (Poly propylene Random copolymer) pipes confirming to IS:15801 UV stabilized & anti -microbial fusion welded, having thermal stability for hot & cold water supply, including all PP - R plain & brass threaded polypropylene random fittings, including trenching, refilling & testing of joints complete as per direction of Engineer-in-Charge PN - 10 Pipe, 110mm OD (SDR-11) |
| 22 | Providing and fixing PPR Unions PPR Union 75mm |
| 23 | Construction ofRCC sedimentation tank of size 18X5X2.5M (Above GL 1.00 M) |
| 24 | Supply and instalation of 20 HP centrifugal pump with suction pipe and all allied services |
| 25 | Construction ofRCC areation tankf size 15X4X2.5M |
| 26 | Supply & instalation of pannel board with MCCB , change over, bus bar |
| 27 | Construction of earthing using copper plate and strip |
| 28 | Supply and instalation of Iron Removal Plant 5000 GPH , 20 HP Centrifugal pump, Chlorin and Oxidation chamber,and all allied services |
| 29 | 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) |
| 30 | Providing and placing on terrace (at all floor levels) polyethylene water storage tank, IS : 12701 marked, with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank. (60X500Ltr) |
| 31 | 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 silt and other deposits. (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. sqm |
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