REPAIR OR REPLACEMENT OF EXTERNAL GI CI DI PPR PIPELINE AND REPAIR OR CLEANING OF UG SUMP, PS TANK, SWT AND ALLIED WORKS AND REPAIR/REPLACEMENT OF FRESH WATER DISTRIBUTION PIPE LINE, CLEANING OF OVERHEAD SERVICE TANKS AND ALLIED WORKS AT 509 SU, AT

Amount

Material and labour for cleaning of following RCC tank/masonary sumps/water reservoirs, through 7 stages of cleaning and sterilization consisting of three stages of bacteriological screening done by Terbac-G10, Terbac-G5, Terbac-G65 and Ultra Violet ray process complete all as specified and as directed for the following :- Note 1 for cleaning stages:- Stage : I MECHANIZED DEWATERING : This First stage consists of emptying water from the tank. A submersible pump in used to drain the tank of excess of water. Removal of water and semi sludge with the help of Sludge pump (electrical/hydraulic). Stage : II SLUDGE REMOVAL : A sophisticated suction process is used to drain the excess sludge out of tank at a safe place away from tank. Removal of mud, sand and solid particles up to 4 inch size with the hydraulic sludge pupm. Stage : III HIGH PRESSURE CLEANING: The tank in then cleaned using high pressure jet machine. The rotary jet is used to clean walls and ceilings whereas plain jet is used to clean the corners of tank. the rotary jet acts as scrubber and can clean the most stubborn depositions. Cleaning of floor, walls and ceiling with the help of German made high pressure rotary jet pump having pressure range between 80-180 bars. Stage: IV MECHANIZED CLEANING: Mechanical scavenging using Eco-friendly. Health & Safety disinfecting chemical for removing rest over algae in water storage tank's walls to insure minimum harmful pathogens.

Item No 1.00 contd... Stage: V VACUUM CLEANING: The additional sludge and impurities are then removed by using a Heavy duty ubdustrial vacuum cleaner and are again disposed at a safer place away from the water tank. An industrial vacuum pump is then used to clean the leftover physical impurity from the floor. Stage: VI ANTIBACTERIAL SPRAY: After above steps of cleaning, the tank is treated with a food graded Antibacterial spray FDA recommended disinfecting chemicals to make it cpmpletely bacteria free and safe for use. Stage: VII 3600 UV STERILIZATION: The water storage tank is then treated with 3600 ultra-violet (UV) rediator to make it bacteria free and safe for stiring your drinking water. A specially developed 3600 UV Radiator is used to kill suspended or floating bacteria remaining in the tank. Cleaning should be done twice in a year in every six month or as per the direction of Engr-in-Charge (b) Company will submit Govt. laboratory test certificate of TERBAC-G5, TERBAC-G65, fix the sticker mentioning the date of cleaning & name of site and also provide certificate conforming the competion of sterilization of water tanks mentioning the name of station and date of cleaning. All the cleaning & sterilization should be under accidental insurance coverage.

Semi under ground Clear water sump 50000 gallons capacity 3.5 m in depth.

Semi under ground Clear water sump 30000 gallons capacity 3.5 m in depth.

Semi under ground Clear water sump 10000 gallons capacity 3.5 m in depth.

P & S overhead tank of 9600 gallons capacity

RCC overhead tank of 9600 gallons capacity

SWT of 11000 gallons capacity

Material and labour for cement concrete 1:4:8 typeD2 using 40 mm graded stone aggregates as in PCC/Road cutting with cleaning installation area etc complete all as specified.

M & L for preparation of old or previously treated internal and external steel/iron surfaces of over head pressed steel tanks and all steel surfaces of staging and applying one coat of anticorrosive synthetic enamel paint complete including writing of capacity, tank cleaned date etc with white paint of letter size 15 cm on 60 cm x 90 cm size black paint background complete all as directed.

Supply of calcium based granular disinfectant (Calcium Hypo Chlorite) consisting 65%-70% Chlorine Content for Water Treatment Packed in 45 Kg Drum factory sealed delivered at store yard of E/M Office, Laitkor Peak Shillong. Make:- Any brand approved by E-in-C's or any other brand whose product fulfills the parameters specified in Manual on Water Supply and treatment (Third Edition May 1999) issued by CPHEEO,Ministry of Urban Dovelopment, New Delhi. Note :- The brand must contain corrosion inhibitor & Anti Scalling agent to prevent damage of distribution pipelines & accessories.

Excavation in trenches, not exceeding 1.5 mtr wide and not exceeding 1.5 mtr deep in soft / loose soil for removing old and laying new pipes , complete all as specified and directed at site.

Returning, filling in, excavated soil including leveling, watering and well ramming in layers of thickness not exceeding 25 cm in each layer complete all as specified and directed.

Removing excavated surplus soil to a distance not exceeding 50 mtr and depositing the soil where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

Disconnecting and taking up or down old existing GI / DI /PPR pipe and connections of any description / grade and in any position in trenches / under floors etc including connected fittings/accessories and fixtures , all as specified and directed for the following sizes :-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

100 mm bore

Supply, Laying, jointing & testing of Ductile iron (DI), pressure pipes Centrifugally Cast (Spun) Ductile Iron Pressure Pipes with Spigot & Socket end, Class K-9 conforming to IS: 8329/2000 (latest revision) -blast furnace slag cement with Portland cement properties suitable for (push-on) rubber gasket jointing with inside cement mortar lining and Black bitumen external coating, duly ISI marked suitable for push on joint(rubber gasket joint) in any length with inside cement mortar lining, 100 mm bore laid in trenches Make: Tata Metaliks/ Electrosteel Casting Ltd./ Jindal Saw Ltd. Note:- (i) Excavation & Earthwork, shall be measured and paid separately. (ii) The quoted rate shall deemed to include for provision of joints and jointing material for laying pipes and for jointing pipe fittings or taking branch connection, provision of joints and jointing material shall be measured and paid separately.

Suply and fix as in repair jointing of 100 mm bore DI pipes spigot and socket end and fittings with rubber of fibre board gasket, bolts, nuts, washer as in repair complete all as specified and directed.

Supply and fix steel water tubing, galvanized, medium grade, with all fittings like bends, sockets, reducers etc as required in new or old alignment, on floor, trenches, vertically on overhead reservoir,complete all as specified and directed for following sizes:- Make: Jindal/ Prakash/ Tata

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

Supply and fix as in repairs 100 mm bore CI Sluice valve PN-1.6 IS 14846-2000 with Spindle Iron (Heavy duty) Wheel head and both ends flanged and MS nut bolts and washers and pair of rubber/fiber gasket and fixed in position. Make:-Zoloto/Kirloskar/ Leader

Suply and fix as in repair 100 MM dia single phase , Motor Actuated Butterfly valve with disc material SS-304, Stem material SS-410, SEAT EPDM, hand wheel for manual operation and having 05 nos. limit switches for open/Close condition, valve position indicator and over ride trip. The hosing of actuator should be Aluminium Dicast. The mounting shall be direct on valve type. Input Voltage: 230V, AC Designed line pressure: 16 kg/ Sq cm. In built CPU: Quad-Core 64-bit ARM Cortex A53 clocked at 1.2 GHz. Inbuilt 4 USB 2 Ports. Inbuilt Base Ethernet Port. In built Micro SD port for loading your operating system and storing data. In built wireless LAN and Bluetooth Low Energy. The mounting shall be direct type using specilizednarrangement of GI pipe of suitable size/thickness,complete all specified and directed by Engr-in-Charge Make: Universal Switch Gear Control or Equiv.

Supply and fix as in repairs 80 mm bore CI Sluice valve PN-1.6 IS 14846-2000 with Spindle Iron (Heavy duty) Wheel head and both ends flanged and MS nut bolts and washers and pair of rubber/fiber gasket and fixed in position. Make:-Zoloto/Kirloskar/ Leader

Supply and fix as in repairs 50 mm bore Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and directed

Supply and fix as in repairs 15 mm bore Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and directed

Supply and fix as in repairs 20 mm bore Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and directed

Supply and fix as in repairs 25 mm bore Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and directed

Supply and fix as in repairs 40 mm bore Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and directed

Supply and fix as in repairs 150 mm bore CI butterfly valve, BS-5155 Geaoperated with necessary rubber gaskets, nuts and bolts and washers of suitable size complete all as specified and directed

Supply and fix as in repairs upto 150 mm bore Bends (any type, radius and angle) tapers any type, (straight, bend, increasing,decreasing or double socket etc.) Tee pieces single branch. "Y" junction, double branch, cross (all sockets or socket and spigot) collars, caps and plugs complete all as specified and directed

Material and labour for water proofing coating, inside of the filter shell shall be painted with back anticorrosive paint and outside shall be painted with two coats of epoxy.

M&L for valve pit chamber top cover with MS sheet 3mm thick duly painted and mounted on angle iron frame of size 1.2 m x 1.2 m with hinges and locking arrangement fixing in cement mortar proerly of existing size and taking down old unserviceable complete all as specified and directed.

Disconnecting existing PVC tanks, setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in position including cleaning repairing, etc of following Capacity as directed by Engineer-In-Charge.

500 Litre capacity tank

1000 Litre capacity tank

2000 Litre capacity tank

Supply and fix as in repairs Rotational moulded polyethylene water storage overhead tanks (cylindrical vertical with closed top) multi layered 1000 ltr capacity hoisted and fixed in position including 20 mm dia Ball valves (Minimum weight of valve 210 gms) high pressure of PTMT with epoxy coated Aluminium rod and high density plastic ball screwed for iron pipe complete all as specified including dismantling the old unserviceable one. Make:Sintex/ Astral/ Finolex/ Supreme

Supply and fix as in repairs ball brass valves, high pressure, with polythene float and flynut complete, screwed for iron pipe or brass ferrule and fixed complete all as specified of the following sizes:-

20 mm bore

25 mm bore

32 mm bore

Supply and fix as in repair GI Elbow thread complete all as specified and directed for following sizes: Make : Zoloto or Equivalent

15 mm bore

20 mm bore

25 mm bore

40 mm bore

Supply and fix as in repair GI Tee thread complete all as specified and directed for following sizes: Make : Zoloto or Equivalent

15 mm bore

20 mm bore

25 mm bore

40 mm bore

Supply and fix as in repair GI Socket thread complete all as specified and directed for following sizes: Make : Zoloto or Equivalent

15 mm bore

20 mm bore

25 mm bore

40 mm bore

Supply and fix as in repair GI Union thread complete all as specified and directed for following sizes:-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

Supply and fix as in repair GI Plug thread complete all as specified and directed for following sizes:-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

Supply and fix as in repair GI Nipple thread complete all as specified and directed for following sizes:-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

Supply and fix as in repair GI Tank Nipple thread complete all as specified and directed for following sizes:-

15 mm bore

20 mm bore

Supply and fix as in repair GI Reducing Elbow thread complete all as specified and directed for following sizes:-

20 mm bore

25 mm bore

40 mm bore

50 mm bore

Supply and fix as in repair GI Reducing Tee thread complete all as specified and directed for following sizes:-

20 mm bore

25 mm bore

40 mm bore

50 mm bore

Supply and fix as in repair GI Reducing Socket thread complete all as specified and directed for following sizes:-

20 mm bore

25 mm bore

40 mm bore

50 mm bore

Material and labour for cutting the existing CI/DI/GI water mains for addn/altrn or for taking branch connections/insertion of new Tees, branches from pipe sizes not exc 150 MM complete all as directed by Engg in charge.

M/s B.Citymai Syiem (BID ID -3150128)

M/S BISWA CONSTRUCTION (BID ID -3148959)

kapoor and co (BID ID -3151017)

S K ENTERPRISE (BID ID -3150195)

M/S RAGHU NATH SAH (BID ID -3149357)

M/S Shillong Supply Syndicate (BID ID -3150985)

madan enterprise (BID ID -3149495)

M/S DEEDAR ENTERPRISE (BID ID -3148586)

MAHINDER ELECTRICALS (BID ID -3151362)