Military Engineer Services-MES has published Tender For Improvement To Water Supply System In Various Location At Shillong Under Ge Shillong. Submission Date for this Tender is 17-07-2023. Water Supply Project Tenders in shillong Meghalaya. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 10-Jul-2023 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 17-07-2023 |
| Sl. No. | Item Description |
| 1 | Supply & laying and jointing 100mm diaDuctile Iron pipe, with spigot and socket ends suitable for push on rubber joint centrifugally castClass “K-9” inner side cement lining and outer side black bitumen coatinglaid in trenches including push on rubber (EPDM) ring with ISI marked including taking down old rusted one including burning out joints and recovering lead complete all as specified and as directed |
| 2 | S & F CI sluice valve flanged for class 1.6 PN 100 mm conforming to IS 14846 alongwith suitable size of nut bolts, washers and gasket etc as required complete including taking down old rusted onecomplete all as specified and directed. |
| 3 | S & F CI sluice valve flanged for class 1.6 PN 150 mm complete including taking down old rusted onecomplete all as specified and directed. |
| 4 | S & F Cast Iron air valve with two air outlet,100 mm dia boreincluding taking down old rusted one complete all as specified and directed. |
| 5 | S & F Cast Iron air valve with two air outlet,150 mm dia boreincluding taking down old rusted one complete all as specified and directed. |
| 6 | S & F reflux valve with by pass arrangement 100 mmincluding taking down old rusted one complete all as specified and directed. |
| 7 | S & F reflux valve with by pass arrangement 150 mmincluding taking down old rusted one complete all as specified and directed. |
| 8 | Supply & laying and jointing 150mm diaDuctile Iron pipe, with spigot and socket ends suitable for push on rubber joint centrifugally castClass “K-9” inner side cement lining and outer side duly paintedlaid in trenches including push on rubber (EPDM) ring with ISI marked including taking down old rusted AC pipe line complete all as specified and directed. |
| 9 | Supply & laying and jointing 150mm diaDuctile Iron pipe, with spigot and socket ends suitable for push on rubber joint centrifugally castClass “K-9” inner side cement lining and outer side duly paintedlaid in trenches including push on rubber (EPDM) ring with ISI markedcomplete including taking down old rusted CI pipe lineincluding burning out joints and recovering lead complete all as specified and directed. |
| 10 | M & L Pipe 80 mm bore steel water tubing medium grade galvanised with all fitting and laid in trenches complete including taking down old rusted one complete all as specified and directed. |
| 11 | M & L for cutting of existing road / hard standing / foot path surfaces for laying water tubing and making good to disturbed surface with plain cement type B1 (1:2:4) using 20 mm graded crushed stone aggregate as in coping / benching, slightly rounded or chamfered angles and throating, etc including necessary formwork complete all as specified and as directed |
| 12 | M & L for PCCtype D2 (1:4:8) using 40 mm graded crushed stone aggregate etc as in foundation, filling and mass concrete etc necessary formwork complete all as specified anddirected |
| 13 | M&L for construction of block masonary valve pit complete with PCC1:3:6 type C1 solid block walling 20 cm thick set in cement mortar 1:4 over 100mm thick PCC 1:4:8 type D2 foundation 50 mm thick PCC 1:2:4 type B1 copingon the top of wall rendering 15 mm thick cement mortar 1:4 on inside and exposed external surface MS sheet cover angle iron frame and locking arrangement, size0.9 mtr x 0.9 mtr x 0.9 mtr as mentioned in particular specification including dismantling old existing damaged valve pit and complete all as specified anddirected as shown in drg No TD/EM/6 Sh 1/2 & 2/2 |
| 14 | Supply and lowering 80mm bore flanged type long heavy duty MS column pipe jointing with bolts nuts including making/cutting groove at flanged for passing submersible cable complete all as specified anddirected Note: submersible cable shall be measured and paid separately |
| 15 | Supply and packing pea size washed gravels surrounding between assembley pipes and bore holes top to bottom using 3mm size gravel complete all as specified and directed. |
| 16 | Trial bore hole of150mm (min) dia with ODEX/DTH or reverse rotary circular/direct circulation method or combined in both the processes as per site requirement in any kind of soil strata including lifting and borning devise and casing pipe etc complete all as specified and directed 0 to 150 mtr depth from ground level (Note : Total 04 Nos point shall be given for trial holes one by one until the suitable strata and yields achieved) including providing PCC cover on unused bore hole/trial bore hole complete all as specified anddirected |
| 17 | Development and reaming of bore by reaming in steps of 210 mm dia(min) by using ODEX/ DTH or reverse rotary circulation or direct circulation method or combination of both by using power rig (preferably with DTH rig) for any kind of soil, boulders as per the method recommended and the nature of strata under ground from GL upto a depth of 30 mtr suitable for inserting 200mm dia MS ERW casing pipe complete through any type of soil/rock/any other formation as per following depth suitable for 200mm dia assembly or pipes including collection of soil strata sample after every one mtr after 30 mtr depth BGL, From GL upto a depth of 30 mtr BGL complete all as specified anddirected |
| 18 | Development and reaming of bore by reaming in steps of 160 mm dia(min) by using ODEX/DTH or reverse rotary circulation or direct circulation method or combination of both by using power rig (preferably with DTH rig) for any kind of soil, boulders as per the method recommended and the nature of strata under ground from GL upto a depth of 120 mtr BGL suitable for inserting 150mm dia MS ERW casing pipe complete through any type of soil/rock/any other formation as per following depth suitable for 150mm dia assembly or pipes including collection of soil strata sample after every one mtr after 30 mtr depth BGL,From 30 mtr BGLupto 120 mtr BGL complete all as specified anddirected |
| 19 | Development and reaming of bore by reaming in steps of 160 mm dia(min) by using ODEX/ DTH or reverse rotary circulation or direct circulation method or combination of both by using power rig (preferably with DTH rig) for any kind of soil, boulders as per the method recommended and the nature of strata under ground from GL upto a depth of 200 mtr BGL suitable for inserting 150mm dia MS ERW casing pipe complete through any type of soil/rock/any other formation as per following depth suitable for 150mm dia assembly or pipes including collection of soil strata sample after every one mtr after 30 mtr depth BGL,From 120 mtr BGLupto 200 mtr BGL complete all as specified anddirected |
| 20 | Note : FOR ITEM NO 17 TO 19 (a)Depending upon the nature of strata encountered and availability of fractures in the strata to allow percolation of water.If drilling beyond, 200 mtr is required the same shall be carried out with written approval of the Engr-in-Charge. (b)The rate for drilling beyond 200 mtrs will be considered the same as in item No 19 above (i)Geo-physical logging of the bore holes under Srl No 17 TO 19 to be done after completion of drilling but before lowering the housing pipe etc (ii) Strata samples to be collected during drilling and preserved in PVC container mentioning details for analysis and preparation of lithologic log(iii)Depth of the bore shall be decided by the Engr-in-Charge/AGE which will be final and binding. (c)(i)No extra payment is involved to cutting of small boulder, hard rock boulder etc if any bore upto drilling of 50 mtrs from the GL. (ii)Cost of yield test and verticallity testing, watering testing shall be deemed to be included in the cost of drilling. |
| 21 | Supply and lowering plain type slotted strainer 7mm thick conforming to IS 8110, 150 mm dia, gap size/length & type of slot shall be as specified in IS 8110 wall thickness 7 mm and welded with MS pipe and heavy duty collar and welded centre guide MS flat iron 20 x 6 mm complete all as specified anddirected |
| 22 | Supply, Lowering, Assembling & fixing in position ERW duty mild steel casing pipe 150 mm dia bore, 6.0 mm wall thickness, plain ended duly weld butt joint with heavy duty collar and 20x6.0mm Mild Steel Flat Iron Centre Glide ( 4 No in Each joint), complete all as specified and as directed. |
| 23 | Supply, Lowering, Assembling & fixing in position ERW duty mild steel casing pipe 250 mm dia bore, 6.0 mm wall thickness, plain ended duly weld butt joint with heavy duty collar and 20x6.0mm Mild Steel Flat Iron Centre Glide ( 4 No in Each joint), complete all as specified anddirected |
| 24 | Development of tube wells with air compressor of suitable capacity till sand/mud free water of potable quality is obtained and to achieve mimimum discharging capacity of 10,000 GPH, (Hire charges of Compressor with accessories and fuel required for developement of tube well including TPT to work site shall be deemed to be included in the unit rate quoted by the contractor) complete all as specified anddirected |
| 25 | Supply and fixing pressure guage 100 mm dia size 0 to 20 Kg/Cm2 complete all as specified anddirected |
| 26 | S&F cap suitable for 250mm bore pipe in two parts made out of mild steel plate for covering tube well duly welded with locking arrangement including making holes for passing 16 Sqmm 3 core flat submersible cable complete all as specified and directed |
| 27 | Supply and fix mild steel clamp for holding 80 mm bore column pipe bent to shape as required including drilling holes and provision of bolts, nuts and washers complete all as specified and directed (Note : Clamp shall be made out of 700 mm long MS flat iron of size 150 x 10 mm thick complete all as specified and directed |
| 28 | M & L for sample box made out of wood for sample received from different strata during digging at interval of 5.0 mtrs complete all as specified and directed |
| 29 | M & L for tesing of borewell water for minimum acceptable quantity of discharge 2800 GPH at 150 mtrs head by doing contineous pumping of water upto 8 hrs to determine actual pumping yield of lthe borewell through yield test by V-notch method or any other method available complete all as specified and directed |
| 30 | M&L for GI Tubing25 mm bore Heavy Class including all fitings such as union, elbow, bend, socket, socket reducer, tees etc. in diffrent location with fixing materialincluding taking out old rusted one complete all as specified and directed. |
| 31 | Supplyand fix or laying GI Tubing Heavy Class 50 mm bore including all fitings such as union, elbow, bend, socket, socket reducer, tees etc. in diffrent location with fixing materialincluding taking out old rusted one complete all as specified and directed. |
| 32 | Supplyand fix or laying GI Tubing Heavy Class 80 mm bore including all fitings such as union, elbow, bend, socket, socket reducer, tees etc. in diffrent location with fixing materialincluding taking out old rusted one complete all as specified and directed. |
| 33 | Supplyand fix or laying GI Tubing Heavy Class 100 mm bore including all fitings such as union, elbow, bend, socket, socket reducer, tees etc. in diffrent location with fixing materialincluding taking out old rusted one complete all as specified and directed. |
| 34 | Supplyand fix or laying GI Tubing Heavy Class 150 mm bore including all fitings such as union, elbow, bend, socket, socket reducer, tees etc. in diffrent location with fixing materialincluding taking out old rusted one complete all as specified and directed. |
| 35 | M & L Pipe 100 mm bore steel water tubing medium grade galvanised with all fitting and laid in trenches complete all as specified and directed |
| 36 | M & L Pipe 80 mm bore steel water tubing medium grade galvanised with all fitting and laid in trenches complete all as specified and directed |
| 37 | S & L Submersible cable 10 Sqmm 3 core, Flat with stranded copper conductor, PVC insulated and PVC sheathed 1100 Volts grade, complete all as specified and as directed. |
| 38 | Material & Laying trenches or fixing/passing through pipe including jointing and testing of PVC/XLPE insulated and PVC sheathed armoured electric cable (heavy duty) with aluminium conductors 1100 volts grade conforming to IS 7098 Part-I cross sectional area 25 sqmm 4 core complete all as slpecified and directed |
| 39 | S&F CI sluice valve with SS spindle double flange conforming to ISI 14846 both ends flanged class PN 1.6 size 100 mm dia including necessary nuts, bolts, washer and gasket complete all as specified and directed . |
| 40 | S&F CI sluice valve with SS spindle double flange conforming to ISI 14846 both ends flanged class PN 1.6 size 80 mm dia including necessary nuts, bolts, washer and gasket complete all as specified and directed . |
| 41 | Supply and fix CI sluice valveclass PN 1.6 350mm diaincluding taking out old unserviceable one complete all as specified and directed. |
| 42 | Supply and fix CI sluice valve Class PN 1.6 200mm dia including taking out old unserviceable one complete all as specified and directed. |
| 43 | Supply and laying, ductile iron fittings for spigot and socketed pipe such as bends (any type, radius and angle) tapers any type, Tee pieces single branch "Y" junction, double branch, cross, collars, caps and plugs ISI marked suitable for bore of pipe upto 150mm complete all as specified and directed. |
| 44 | Supply and fixCI sluice valve Class PN 1.680mm dia including taking out old unserviceable one complete all as specified and directed. |
| 45 | S&F CI valve reflux (NRV) conforming to IS 14845 screwed both ends meant for horizontal pipes chromium S/S parts of size 100 mm bore complete all as specified and directed. |
| 46 | S&F CI valve reflux (NRV) conforming to IS 14845 screwed both ends meant for horizontal pipes chromium S/S parts of size 80 mm bore complete all as specified and directed. |
| 47 | S&F cast iron air release valve double acting including jointing materials such as gaskets, nuts and bolts complete double air outlet of size 80 mm dia complete all as specified and directed. |
| 48 | S&F cast iron air release valve double acting including jointing materials such as gaskets, nuts and bolts complete double air outlet of size 100 mm dia complete all as specified and directed. |
| 49 | Construction of stone/PCC block/brick masonry valve pit size 900mm x 900mm x 900 mm (internal dimension) complete with MS angle iron frame work (angle size 40 x 40 x 6mm) 3 mm thick MS Sheet top cover, openable through hinges incl necessary locking arrangement rendering CM 1:4 andpainting steel surfaces with two coats of bituminous paint inside and on exposed surfaces complete all as shown in Drg No TD/EM/6 Sht 1/2 & 2/2 complete all as specified and as directed. |
| 50 | Supply, install, testing and commissioning of submersible pumping set 15 HP electrically driven with supply voltage of 415 Volts 50 Cycles with discharge capacity 22 to 28Cum/Hrs at 90 to 110 mtrs head of outlet of suitable size including splriing loaded SS suction straniner and connected with column pipe complete all as slpecified and directed. NOTE : The cost for the jointing of 80 mm dia Column pipe is included with the installation of submersible pump . |
| 51 | Supply, installation and commissioning cubical type CPRI approved dust and vermin proof and water proof LT panel of size 90x45x90 cm out door type floor mounted including PCC (1:3:6) type C1 in foundation grouting & fabrication totally enclosed with double door factory made out 16 gauge MS Sheet and angle iron of 50x50x6 mm size duly painted with two coats of smoke gray synthetic enamel paint ove a coat of red oxide primer with locking arrangement made of MS angle iron frame woork and CRCA sheet of 3.15mm thick as per IS 5039 duly painted with powder coated paint of approved shade after mimimum seven tank treatment lprocess.The panel shall be suitable for 415 volts, 50 HZ, 3 phase 4 wire system and shall be complete with suitable capacity copper bus bar (1.5 times the incoming switch gear current rating) with suitable size of PVC copper conductor, thimbles glands and shall be complete all as directed with the following accessories.The cost of the PCC pedestal is deemed to be included in the quoted rate of above said item and the PCC pedestal will be as per the Manufacturers instruction.The panel will comprise of the following : (a)INCOMING MCCB 4 pole 100 Amps breaking capacity 25 KA, 415 Volt - 01 No (b)OUTGOING MCCB 4 pole 63 Amps breaking capacity 25 KA, 415 Volt - 01 No (c)Digital Multifunction meter with selector switch - 01 No (d)CT of 125/5 A, VA 10)-03 Nos (e) Provn of housing star delta starter - 01 No. (f)Indicator lamp, set of three, RYB - 01 Set (Set of three) with holder and fuse complete. |
| 52 | M&L for carrying out Electo Logging test of the drilled Bore Hole upto the depth of pilot Bore Hole below ground level and submission of the log report in Triplicate, complete all as specified anddirected |
| 53 | Earthing complete with galvanised iron earth plate electrode 600 x 600 x 6mm thick , burried directly in ground vertically to deplth not less than2.25 metres below ground level with top edge of the plate at a depth ofnot less than 1.5 metres below the ground level, connected to galvanised iron strip of 32 x 6 mm earth lead by means ofby means of bolts andnuts , check nuts and washers made of galvanised steel, earth strip protected by and including GI pipe 32 mm bore (light grade) and connected to main test point as directed and including concrete pit using PCC (1:3:6) Type C1, precast RCC (1:1:5:3) Type A1 cover slab of size 40 x 40 x 5 cm reinforced with 8 mm dia MS bar @ 150 mm C/C both ways with one handle for lifting, made out of 8 mm dia MS bar embedded in pre-cast cover slab, funnel, wire mesh, 40mm bore galvanised or steel pipe (Light grade) for waterring, charcoal and salt in alternate layers including necessary excavation and earth work in any type of soil complete all as shown on electrical plate No 3 of SSR Part - I |
| 54 | S & L Stay wire rope 10 Sqmm, fixing with submersible pump properly complete all as specified anddirected |
| 55 | Supply, laying, testing and commisioning of CPRI approved factory made indoor type, 2X100HP star delta starter LT panel boardof size 1900X1500X600mm, 2mm thick CRCA Sheet, mounting chennel,chemically treated, powder coated Suitable size of treated insulated compartment dust and vermin proof, free standing complete with 400 amps aluminum insulated busbar,incoming and out goingMCCB"s, MCB"s, Contactors, over load relay, Single phase priventor, dry run preventor, start & stop reset button, push button red, push button green, overallcompartment frontdoor with locking arrangement, airvent min 2 Nos, internal copper wiring,excavation and PCC work, all incoming & out going cable connection including taking down old one etc. all as specified and directed by Engr-in-Chargewith the following accesories: (a)Bus bar with aluminum strip 3 phase & nutral, 400 Amps. =01 Set. (b)incomming MCCB 400 Amps,50 KA, 4 pole =01 No (c) OutgoingMCCB 200 Amps, 50 KA, 4 pole =2 Nos , (d) Electric Motor starter star delta 415 Voltsuitable for100 HP=02Nos (e)single phase priventor & dry run protection relay current baded + VI meter =02set. (f) Multifunction digital meter ,suitable for 415 Volt,4 wire and 0-500 Amps=3 set. (g)C.T 400/5rating set of three = 1 set. (h) C.T 300/5rating set of three = 2 set. (j)Lamp indicator set of threeRYB =3 set. |
| 56 | Dewatering completefrom the filtration plant of capacity 20000 GPH after that take out complete filter media including sediments deposited, other foreign material, deterioreted back wash and air pipe etc and keep the servicable itemsin safe place for reuse after cleaning & washing after that clean and wash complete filter bed with the help ofcleaning material such as wire brush, bleaching powder etc and remove all the materials from the site where complete all as specified anddirected. |
| 57 | Dewatering completefrom the filtration plant of capacity 30000 GPH after that take out complete filter media including sediments deposited, other foreign material, deterioreted back wash and air pipe etc and keep the servicable itemsin safe place for reuse after cleaning & washing after that clean and wash complete filter bed with the help ofcleaning material such as wire brush, bleaching powder etc and remove all the materials from the site where complete all as specified anddirected |
| 58 | Fabrication ofback wash (air and water) systemof the filter mediamade out of 150 and 50 mmheavy duty (class "C") GI tubing complete inclusive cutting, welding, making hole, drilling, fixing and testing complete all as specified anddirected . Note: GI Tubing 150/50mm will be measure and paid separatly under appropriate items. |
| 59 | Supply and packing carefully filter media of size 40-50mm,smooth and round/oval in shape free from clay/dirt in filter bed complete all as specified anddirected . |
| 60 | Supply and packing carefully filter media of size 25-40mm,smooth and round/oval in shape free from clay/dirt in filter bed complete all as specified anddirected . |
| 61 | Supply and packing carefully filter media of size 15-25mm,smooth and round/oval in shape free from clay/dirt in filter bedcomplete all as specified anddirected . |
| 62 | Supply and packing carefully filter media of size 06-15mm,smooth and round/oval in shape free from clay/dirt in filter bed complete all as specified anddirected . |
| 63 | Supply and packing carefully filter media of size 03-06mm,smooth and round/oval in shape free from clay/dirt in filter bed complete all as specified anddirected . |
| 64 | Supply and packing carefully filter media of size 0.45-0.55mm,smooth and round/oval(sand) in shape free from clay/dirt in filter bed complete all as specified anddirected . |
| 65 | Packing carefully filter media retrieved from taking out of size 40-50mm,smooth and round/oval in shape free from clay/dirt in filter bed complete all as specified anddirected . |
| 66 | Packing carefully filter media retrieved from taking out of size 25-40mm,smooth and round/oval in shape free from clay/dirt in filter bed complete all as specified anddirected . |
| 67 | Packing carefully filter media retrieved from taking out of size 15-25mm,smooth and round/oval in shape free from clay/dirt in filter bed complete all as specified anddirected . |
| 68 | Suplly and fix CI Foot valve Confirming to IS 4038 150mm dia including taking out unserviceable one complete all as specified and directed. |
| 69 | Suplly and fix CI Foot valve Confirming to IS 4038 80mm dia including taking out old unserviceable one complete all as specified and directed. |
| 70 | Suplly and fix cast iron Globevalve Confirming to IS 9338 100mm dia including taking out old unserviceable one complete all as specified and directed. |
| 71 | M&L for PCC 1:2:4 type B-1 (Using 20 mm graded stone aggregate) as in coping/benching incl. sheathing slightly chamfered on edge and finishes exposed surfaces even smooth with out using extra cement including necessary from work/Road cuttingcomplete all as specified and directed . |
| 72 | Dismentling of existing 90 HP pumping setfrom the foundation after disconnecting all incoming and out going electric & water supply connectionincluding sluice valve, non return valve, bend etc. and keep the pumping setin safe custody after that dismentling existing foundation with the help of power hammer drill machine and construction new foundation on same place as per existing size including foundaton bolt & nuts & fix the same pump set on same position and testing for entire satisfaction of complete all as specified and directed . |
| 73 | Supply and fix bleaching dozer bucket type of capacity 105 Litrs including complete all as specified and as directed taking down the old unserviceable one complete all as specified and directed . |
| 74 | M & L upgradation of upper dam change of water stainer, necessary required excavation, removing unwanted material up to the distance of 50 mtr, properly fixing of sluice valve and taking out old u/s one and necessary PCC 1:3:6 type C1 (Using 20 mm graded stone aggregate) as infoundationcomplete all as specified and directed . Note- Sluice valve measured and paid in revelent item to the contractor. |
| 75 | Excavation in trenches n exc 1.5 m widen exc 1.5 m deep in soft/ loose soil for foundation etcor for shaft, wells,cesspit,manholes, pier holes etc n exc 10 sqm on plan and not exc 1.5 m in depth and getting out complete all as specified and directed. |
| 76 | Returning ,filling in including spreading ,levelling watering and well ramming in soft/loose soil in layers n exc 25 cm thick complete all as specified and directed |
| 77 | Removing excavated soil not exceeding 50 m distance and depositing where directed at a level n exc 1.5 metre above the starting point complete all as specified and directed . |
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