Tender For Desilting Of Infiltration Wells, Flushing Of Borewells And Drilling Of Borewell And Allied Works At Vadarangam Head Works For Cwss To 114 Coastal Habitations In Kollidam Union Of Mayiladuthurai District Under Sdrf - Completion Period 1 Month An
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Project Description
Tender For Desilting Of Infiltration Wells, Flushing Of Borewells And Drilling Of Borewell And Allied Works At Vadarangam Head Works For Cwss To 114 Coastal Habitations In Kollidam Union Of Mayiladuthurai District Under Sdrf - Completion Period 1 Month And Free Maintenance Period 3 Months
BOQ
| Sl. No. | Item Description |
| 1 | TAMIL NADU WATER SUPPLY AND DRAINAGE BOARD EXECUTIVE ENGINEER, RWS DIVISION, MAYILADUTHURAI Name of work:- Desilting of infiltration wells, Flushing of borewells and Drilling of borewell and allied works at Vadarangam Head works for CWSS to 114 coastal Habitations in Kollidam union of Mayiladuthurai District under SDRF - Completion period 1 Month and Free maintenance period 3 months SCHEDULE - A (E – Tendering System) BILL OF QUANTITY |
| 2 | Desilting and Allied works of Infiltration wells |
| 3 | Desilting light or sandysoil or silt from infiltration wells below water level including the charges for special T&P and air compressor etc. complete and as directed by TWAD Board Officers. |
| 4 | Labour charges for the removal and reerection of submersible pumpset in borewell/openwell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days. |
| 5 | Above 5 HP upto 10 HP |
| 6 | Hire charges for deploying earth moving machinery (JCB) for earth work including diesel, oil, labour charges etc., complete |
| 7 | Refilling of sand to cavity formed around the infiltration well area inside the river Coleroon |
| 8 | Flushing Of Bore Wells |
| 9 | Rate for flushing of borewell of 6\\" dia requiring less than 4 hours operation using drill rods/ hose with required size of pipes for various capacity compressor including transportation, labour, and fuel charges for compressors as directed by the TWAD Officer and conducting yield test by 'V' notch method if required and as directed by Twad Board Officers |
| 10 | Vadarangam Borewell - 6 Nos |
| 11 | Removal of submersible pumpsets and its accessories from borewell/ open well for attending repairs 50% of the rates mentioned under item 17(a), (b) (c) and (d) may be allowed for the respective Horse power and as directed by Twad Board Officers |
| 12 | 7.50 HP |
| 13 | Re-erection of submersible pumpsets and its accessories into the borewell/ openwell after attending the repairs 50% of the rate mentioned under item 17(a), (b) and (c) may be allowed for respective Horse power and as directed by Twad Board Officers |
| 14 | 7.50 HP |
| 15 | Supply and Delivery of Cable |
| 16 | Supply of SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK |
| 17 | 31/2 core 50 sq.mm. PVC Armoured UG Cable |
| 18 | 31/2 core 35 sq.mm. PVC Armoured UG Cable |
| 19 | Laying OF L.T. CABLES- 3,3.5,4 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CABLE CONFORMING TO IS 1554 PART I AND AS AMENDED THERE AFTER WITH ISI MARKING |
| 20 | 31/2 core 50 sq.mm. PVC Armoured UG Cable |
| 21 | 31/2 core 35 sq.mm. PVC Armoured UG Cable |
| 22 | Drilling of New Bore well |
| 23 | Drilling of borewells any where in Mayiladuthurai District including transportation from one place to another within the above Districts in alluvial soil or sedimentary strata of clay and sand stone, shale, pebbles boulders etc. By first taking a pilot bore of 140mm / 150mm dia and then enlarging to required dia by direct or reverse rotary mud, circulation method, using Clax rigs, fuel, labour and drilling bentonite and water required for drilling at site. Site will be shown by the TWAD Board officers including construction of mud pit and as directed by TWAD Board Officers. |
| 24 | Drilling 140 /150 mm pilot bore. |
| 25 | upto 60 m.Depth ending below Ground level |
| 26 | Reaming from 140/150 mm dia pilot bore to 300 mm dia bore as directed by the TWAD Board Officers upto 60 m Depth ending from ground level |
| 27 | upto 60 m.Depth ending below Ground level |
| 28 | Reaming 300 mm dia pilot bore to 400mm/450mm dia bore as directed by the TWAD Board Officer. |
| 29 | upto 60 m.Depth ending below Ground level |
| 30 | Labour Charges for inserting PVC Casing pipes assembly (with slots or without slots) in the drilled hole including jointing the pipes with PVC Couplers with Cement paste etc.,complete, supply and packing the annular space with pebbles of size and quality as approved by the executive engineers of TWAD Board |
| 31 | 150 mm dia casing pipes assembly |
| 32 | Charges for developing the Borewell with air compressor of 600 CFM capacity (Minimum 8 Hours) including transportation, labour and fuel charges for compressor as directed by TWAD Officers and conducting yield test by ‘V’ notch method. |
| 33 | Supply and Delivery of unplasticised for plain PVC Casing pipes for the following dia in 3m length with screwed and Socket ends and centering guides for every 15m length of pipes as per IS 12818/1992 and as amended from time to time to suit deep borewells upto 80 m to 250m depth (CM) for delivery at site within ISI marking including loading unloading, freight, transit insurance and inclusive of all taxes etc complete. DN 200mm PVC plain casing pipes as directed by TWAD board officials. |
| 34 | Supply and Delivery of unplasticised for ribbed screen PVC Casing pipes for the following dia in 3 m length wtith screwed and socket ends and centering guide for every 15 m length of pipes as per IS 12818 /1992 and as amended from time to time to suit deep borewells for delivery at site within ISI marking including loading unloading, freight, transit insurance and inclusive of all taxes etc complete. DN 200mm Ribbed screen pipe as directed by TWAD board officials. |
| 35 | Supply and Delivery and fixing of DN 200 mm PVC end plug suitable for the above pipes with ISI marking inclusive of all taxes etc complete as directed by TWAD board officials. |
| 36 | Supply and Delivery and fixing of DN 200 mm MS Cover of size 1 cm x 3mm suitable for the above pipes inclusive of all taxes etc complete as directed by TWAD board officials. |
| 37 | SUPPLY, DELIVERY AND ERECTION OF SUBMERSIBLE PUMPSETS |
| 38 | Supply and delivery of vertical wet type submersible pumpset ( 5 HP) capable of discharging any of the following pumpset in having a duty of 300 LPM agaist a total head of 40 m suitable for erection into the Bore well of 150mm dia with stainless steel shaft, bronze impelle. |
| 39 | 300 lpm x 30m Head |
| 40 | Supply and delivery of direct online starter confirming to IS13947, IEC60947-1 and as amended thereafter with suitable KW rating for operation in AC/Three Phase/50HZ(± 5%) and 415 V(±10%) including Ammeter, Voltmeter, Thermal Overload relay, 16 Amps 2 pole Magnetic Contactor with under Voltage protection, Indication lamp, starting capacitor, running capacitor and On/Off Push button switches, 5 way connector, wiring with 1 sq. mm/1.5 sq. mm copper PVC insulated cable, powder coated vermin proof box including the capacitor (the cost of capacitor is to be taken separately). |
| 41 | Supply and delivery of 1.1 KV grade 3 core PVC insulated 4.00 sq.mm copper flat submersible cable as per IS 694/1990 and with ISI marking of reputed make for submersible motor erected in the bore well. |
| 42 | Laying OF L.T. CABLES- 3,3.5,4 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CABLE CONFORMING TO IS 1554 PART I AND AS AMENDED THERE AFTER WITH ISI MARKING |
| 43 | Supply and delivery of GI pipes and specials as per relevant IS specification for Bore well listed below inserting GI Pipe pipe in wall, cement patch up etc, and as per drawing enclosed including cutting and threading of pipes. |
| 44 | 65 mm GI /Medium Pipe |
| 45 | 65 mm GI flange set |
| 46 | 65 mm MS clamp set |
| 47 | 65 mm GM non return valve |
| 48 | 65 mm GM gate valve |
| 49 | Labour charges for erection of submersible pump set in Bore well including fixing and jointing the submersible cable with clamps to the required depth, valves and errection panel board control room twin erathing as per I.E Rules, GI wire etc. complete including testing pumpset |
| 50 | Bore well to Sump - Connecting Main |
| 51 | Supply and delivery of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) as directed by TWAD Board officers. |
| 52 | 90mm Dia HDPE pipes PN 6 |
| 53 | Earth work excavation and depositing on bank with an initial lead of 10m and lift of 2m for laying of pipes in hard stiff clay, stiff black cotten,hard red earth, shales, murams, gravel, stoney earth and earth mixed with 50% fair sized boulders and hard gravelly soil for laying and jointing of pipes and specials and fittings including shoring and strutting where ever necessary including dewatering of water and all other incidental charges such as barrigading,lighting but excluding cost of refilling with the excavated earth etc complete and as directed by the TWAD Board Officers |
| 54 | 90mm Dia HDPE pipes PN 6 |
| 55 | Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers |
| 56 | 90mm Dia HDPE pipes PN 6 |
| 57 | Refilling of the trenches with excavated soil complying with standard specification after the pipes and specials are laid jointed and tested to the required pressure and depositing the surplus earth at places as directed by the TWAD Board officers. |
| 58 | 90mm Dia HDPE pipes PN 6 |
| 59 | Supply,delivery and fixing of GI/PVC Specials as per IS specification. |
| 60 | 65mm GI Pipe - Class B |
| 61 | 65mm GI Elbow |
| 62 | 65mm GI Coupling |
| 63 | Lowering GI pipes and specials in the trenches and laying to proper grade and alignment and as directed by TWAD Board Officers. |
| 64 | 65mm GI Pipe - Class B |
| 65 | Cutting of GI pipes and as directed by TWAD Board Officers. |
| 66 | 65mm GI Pipe - Class B |
| 67 | Threading of GI pipes and as directed by TWAD Board Officers. |
| 68 | 65mm GI Pipe - Class B |
| 69 | Sub Total |
| 70 | GST @ 18% Please Enable Macros to View BoQ information |
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