Sewer Package IA Replacement of various sizes of damaged PSC/SWP, Enlargement/ Improvement/ Extension of sewage pumping main and Strengthening of existing collection system in various Sewage Pumping Stations commanding areas in Area I,III IV und

Amount

Bill No. 1 Replacement of existing damaged PSC sewage pumping main with 450 mm Dia CI pumping main from Kilijosium SPS to Basin Road SPS in AREA I

Supply, delivery and laying 450 mm diameter cast iron soc/spi pipes of (Class-A) conforming to IS: 1536:2001 in standard lengths with EDPM rubber gaskets including labour charges for loading, unloading and stacking at the site etc., including earthwork excavation for trenches in hard stiff clay, blackcotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil depositing the earth on banks with initial lead of 10m and initial lift of 2m conveying to the site of work, lowering into the trenches, and aligning, jointing, refilling the trenches with excavated soil, watering and ramming to consolidation, disposal of surplus earth,including material and labour cost of rubber gasket for jointing etc., complete for laying the pipes at an average depth of 1.5 m.

450mm D/Soc CI 90 deg Bend

450mm D/Soc CI 45 deg Bend

450mm D/Soc CI 22.5 deg Bend

Supply, delivery at site, conveying and fixing of CI valves of following sizes conforming to relevent IS Code including loading, unloading, transportation charges and stacking etc complete as per specifications.

300 mm sluice valve

100mm Double Air valve

100mm Sluice valve

Supply, delivery, conveying and fixing following cast iron specials as mentioned below conforming to IS: 1538:1993 including loading, unloading and stacking at the site etc as directed by the engineer at site, and including earthwork excavation, refilling with excavated soil, watering and ramming to consolidation and disposal of surplus earth etc complete.

CI Specials for 450mm Sluice valve

450 mm F/Spi Tail Piece

450 mm F/Soc Tail Piece

450 mm collars

450 to 350 mm Taper

350 to 300 mm Taper

CI Specials for 100 mm Air valve

450 mm x 100 mm D/Soc/Fl Tee

Construction of Sluice Valve Chamber of following sizes in second class brick work in CM 1:4 proportion with 12 mm thick outside plastering and 20mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges, CI steps, etc. as per drawing including providing and fixing L.S. cover and frame of size 60cm x 60cm including necessary masonry work and plastering etc., complete..

CONSTRUCTION OF SLUICE VALVE CHAMBER - 2.5 m x 1.5 m x 2.5 m for 300 to 400mm dia Sluice Valve

450 mm Dia Sluice valve

Construction of Air Valve Chamber of size 1.20 m x 0.90 m x 1.60 m in second class brick work in CM 1:4 proportion with 12 mm thick outside plastering and 20mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges, CI steps, etc. as per drawing including providing and fixing L.S. cover and frame of size 60cm x 60cm including necessary masonry work and plastering etc., complete..

100 mm Dia Double Air valve

Jointing the CI specials with molten lead and yarn including caulking the joints and testing to the required pressure with water. (Including cost of Jointing materials)

Cutting C.I Pipes

450 mm dia

Cutting Asphaltic Road -Bus Route

Non Bus Route

Jointing the C.I. Double flanged pipes and specials with rubber insertion to the required specifications with M.S. bolts and nuts, complete and testing the pipes to the required pressure with water (including cost of jointing materials) and labour cost etc. complete

Testing C.I pipe -450 mm dia

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Cement concrete 1:2:4 using 20mm gauge hard broken stone jelly and SRC for PCC works excluding centering, shuttering, compacting, curing, finishing etc complete at 2m depth

For thrust block

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm HBG for the CI pumping main including the cost of shuttering, compaction, curing etc. complete.

450mm D/Soc CI 90 deg Bend

450mm D/Soc CI 45 deg Bend

450mm D/Soc CI 22.5 deg Bend

The Contractor must obtain the existing Static GCP points from CMWSSB which should be considered as the control point with known coordinates X, Y and Z. Survey consultant to ensure the closing error is within permissible limits (Sol Standards) while transferring the levels from the existing Static GCP points and the same to be presented as a report. The same process shall be adopted for random verification of positional accuracy of points established using the PBMs as base. As built survey for every sewage and water pipeline and other assets must be done using DGPS based RTK method by transferring the coordinates from the nearest Static GCP of CMWSSB. Where there are signal interruptions for the RTK method, Total Station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co-ordinates of the assets can then be captured by Total Station. All the features, attributes of all the assets, utilities captured shall be Geo referenced as per standard Coordinate reference system (WGS 84 UTM Zone 44N).

The final base map with assets and utilities shall be furnished in (.shp) format. The geo referenced assets and utilities along with the attributes (as specified by the GIS Wing, CMWSSB) shall be converted into proper geo database (FGDB / PGDB) with the attributes. One set Hard and Soft Copy of all the CMWSSB assets and utility has to be prepared category wise network wise in A0 Print for verification in a print scale of 1:1000 in A0 plot, with standard legends in international and NUIS standards and should be legible and three sets of final Hard Copy in A0 print. (a) For the Underground / Surface Assets along the roads for the distance ranging

Bil No. 2 Replacement of Existing 600 mm Dia PSC main with 600 mm Dia CI pumping main from (Berachah Prayer house) Manickavel street to Basin Road in Area I”

Supply, delivery and laying 600mm diameter cast iron soc/spi pipes of (Class-A) conforming to IS: 1536:2001 in standard lengths with EDPM rubber gaskets including labour charges for loading, unloading and stacking at the site etc., including earthwork excavation for trenches in hard stiff clay, blackcotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil depositing the earth on banks with initial lead of 10m and initial lift of 2m conveying to the site of work, lowering into the trenches, and aligning, jointing, refilling the trenches with excavated soil, watering and ramming to consolidation, disposal of surplus earth,including material and labour cost of rubber gasket for jointing etc., complete for laying the pipes at an average depth of 1.5 m.

600mm D/Soc CI 90 deg Bend

600mm D/Soc CI 45 deg Bend

600mm D/Soc CI 22.5 deg Bend

Supply, delivery at site, conveying and fixing of CI valves of following sizes conforming to relevent IS Code including loading, unloading, transportation charges and stacking etc complete as per specifications.

400 mm DN Sluice valve

150mm Double Air valve

150mm Sluice valve

Supply, delivery, conveying and fixing following cast iron specials as mentioned below conforming to IS: 1538:1993 including loading, unloading and stacking at the site etc as directed by the engineer at site, and including earthwork excavation, refilling with excavated soil, watering and ramming to consolidation and disposal of surplus earth etc complete.

CI Specials for 600mm Sluice valve

600 mm F/Spi Tail Piece

600 mm F/Soc Tail Piece

600 mm collars

Tapper 600 to 400 mm

CI Specials for 150 mm Air valve

600 mm x 150 mm D/Soc/Fl Tee

Construction of Sluice Valve Chamber of following sizes in second class brick work in CM 1:4 proportion with 12 mm thick outside plastering and 20mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges, CI steps, etc. as per drawing including providing and fixing L.S. cover and frame of size 60cm x 60cm including necessary masonry work and plastering etc., complete..

CONSTRUCTION OF SLUICE VALVE CHAMBER - 2.5 m x 2 m x 3 m for 500 to 600 dia pipe

600 mm Dia Sluice valve

Construction of Air Valve Chamber of size 1.20 m x 0.90 m x 1.60 m in second class brick work in CM 1:4 proportion with 12 mm thick outside plastering and 20mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges, CI steps, etc. as per drawing including providing and fixing L.S. cover and frame of size 60cm x 60cm including necessary masonry work and plastering etc., complete..

150 mm Dia Double Air valve

Jointing the CI specials with molten lead and yarn including caulking the joints and testing to the required pressure with water. (Including cost of Jointing materials)

Cutting C.I Pipes

600 mm dia

Jointing the C.I. Double flanged pipes and specials with rubber insertion to the required specifications with M.S. bolts and nuts, complete and testing the pipes to the required pressure with water (including cost of jointing materials) and labour cost etc. complete

Testing C.I pipe -600 mm dia

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Cement concrete 1:2:4 using 20mm gauge hard broken stone jelly and SRC for PCC works excluding centering, shuttering, compacting, curing, finishing etc complete at 2m depth

For thrust block

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm HBG for the CI pumping main including the cost of shuttering, compaction, curing etc. complete.

600mm D/Soc CI 90 deg Bend

600mm D/Soc CI 45 deg Bend

600mm D/Soc CI 22.5 deg Bend

The Contractor must obtain the existing Static GCP points from CMWSSB which should be considered as the control point with known coordinates X, Y and Z. Survey consultant to ensure the closing error is within permissible limits (Sol Standards) while transferring the levels from the existing Static GCP points and the same to be presented as a report. The same process shall be adopted for random verification of positional accuracy of points established using the PBMs as base. As built survey for every sewage and water pipeline and other assets must be done using DGPS based RTK method by transferring the coordinates from the nearest Static GCP of CMWSSB. Where there are signal interruptions for the RTK method, Total Station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co-ordinates of the assets can then be captured by Total Station. All the features, attributes of all the assets, utilities captured shall be Geo referenced as per standard Coordinate reference system (WGS 84 UTM Zone 44N).

The final base map with assets and utilities shall be furnished in (.shp) format. The geo referenced assets and utilities along with the attributes (as specified by the GIS Wing, CMWSSB) shall be converted into proper geo database (FGDB / PGDB) with the attributes. One set Hard and Soft Copy of all the CMWSSB assets and utility has to be prepared category wise network wise in A0 Print for verification in a print scale of 1:1000 in A0 plot, with standard legends in international and NUIS standards and should be legible and three sets of final Hard Copy in A0 print. (a) For the Underground / Surface Assets along the roads for the distance ranging

Bill No. 3, Enlargement of Sewer main / Improvement to existing sewer syste, Pumping main, Sewage Pumping Stations and its allied works for Collector Nagar in Depot 31, Area III

Bill No 3a Enlargement / Improvement to the existing collection system at Collector Nagar and Britania nagar (Rajiv Gandhi nagar) in Depot 31, Area-III

Hiring and running charges for JCB

Supply, delivery, laying and jointing of Double wall corrugated /structured wall plastic polyethylene/polypropylene pipes DWC PE or PP of class SN-8 with non-smooth external Annular Corrugated and Smooth Internal Surfaces in Standard lengths with online coupler and spigot type confirming to IS 16098 (Part-2) 2013 / EN: 13476-3 (latest revision) including elastomeric sealing ring gasket suitable for DWC PE or PP pipes conforming to IS: 5382 (latest revision), freight,insurance, loading into the truck and transporting to the stores / site.. etc including earth work excavation in hard stiff clay,stiff black cotton,hard red earth, shales, muram, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m and lowering into trenches, aligning and testing of DWC PE or PP pipes, watering and ramming to consolidation including timbering the trenches for depths 2.5m and above, pumping out subsoil water etc., complete.

250 mm dia

at 1.0 m average depth

at 1.50m average depth.

300 mm dia

at 2.00m average depth.

at 2.50m average depth.

at 3.00m average depth.

at 3.5m average depth.

at 4.00m average depth.

400mm dia

at 3.50m average depth.

at 4.00m average depth.

Supplying, Laying,jointing CI socket spigot pipes (LA Class) with rubber gasket joint (including cost & making of Rubber gasket), testing including earth work excavation in all kind of soil , including carting of pipes from any of the board's stores to the site of work , lowering into trenches and aligning, refilling the trenches with excavated soil, watering and ramming to consolidation, disposal of surplus earth etc., complete (Timbering included for Depths 2.50m,3.0m,3.5m,..........upto 5.5m)

300 mm dia

at 4.50m average depth.

400mm dia

at 5.00m average depth.

at 5.50m average depth.

Providing CC1:3:6 using Crushed stone sand (Msand) and 12 to 20mm gauge hard broken stone jelly forplain cement concrete works including laying,compacting, curing, etc., complete.

Supplying and filling with stone dust for bedding for a thickness of 10cm and back fill envelope for a thickness of 150mm above the crown of the pipe for DWC PE pipes including ramming, consolidation etc., complete

Construction of Machineholes using sulphate resistant cement at various depths to invert including earthwork excavation as per SS 20B, laying cement concrete in C.M. 1:3:6 using Crushed stone sand (M sand) and 40mm B.G.jelly for foundation, sinking well kerb below G.L. for 4.5m depth and above, pumping, timbering charges for 2.5m depth and above, stock brick work in C.M. 1:3, for 23cm thickwall and over 23cm thick wall, plastering interior with C.M. 1:3, 20mm thick and exterior with C.M. 1:3,12mm thick, laying plain cement concrete 1:3:6 using 12.0mm to 20mm B.G.jelly fixing the frame,providing C.I. steps, machinehole cover and frame, benching and channelling including refilling the trench with excavated earth and disposal of surplus earth etc. complete for the following sizes for each machinehole (As per the type design drawing for machinehole).(Including backfilling of trenches and disposal of surplus earth )

1m depth

1.5m depth

2m depth

Transfering House service connection- roviding House service connection: Supplying, laying jointing and testing UPVC pipe including earthwork excavation for trenches in hard stiff clay, stiff black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m. lowering the pipes into the trenches, aligning, refilling the trenches with excavated earth in layers of not more than 23cm thick watering, ramming to consolidation and disposal of surplus earth etc., complete

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Dewatering using 10 HP diesel engine pumpset including Hire charges, cost of Diesel Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back,loading, unloading and any other incidental charges etc., complete.

Temporary bypassing of sewer including Plugging the mouth of pipe/s inside sewer manhole using suitable plugging system and installation of bypass arrangement for bypassing the sewage flow, including, but not limited, to pumps, pipes, connections, couplin

Forming water bound mecadam to a thickness of 100mm using 1 Cu.m. of 40mm IRC size HBG metal with 0.33cum.of gravel (which will passes through 10mm sieve size) fine for blindage for an area of 10 m2 including spreading metal and gravel fine and packing to camber,consolidation by power roller and including watering and keeping the surface moist for 15 days etc., complete - For temporary road restoration

As built survey for every sewage and waterpipeline and other assets must be done using DGPS based RTK method by transferring the coordinates from the nearest Static GCP of CMWSSB. Where there are signal interruptions for the RTK method, Total Station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co- ordinates of the assets can then be captured by Total Station. All the features, attributes of all the assets, utilities captured shall be Geo referenced as per standard Coordinate reference system (WGS 84 UTM Zone 44N). The final base map with assets and utilities shallbe furnished in (.shp) format. The geo referencedassets and utilities along with the attributes (asspecified by the GIS Wing, CMWSSB) shall beconverted into proper geo database (FGDB / PGDB) with the attributes. One set Hard and Soft Copy of all the CMWSSB assets and utility has to be prepared category wise network wise in A0 Print for verification in a print scale of 1:1000 in A0 plot, with standard legends in international and NUIS standards and should be legible and three sets of final Hard Copy in A0 print.

For the Underground / Surface Assets along the roads <2km

Disposal of surplus earth

Salvage valve for CI Pipe

Bill No. 3b Improvements to existing Sewer system, Pumping main, Sewage Pumping Station and its allied works for Collector Nagar and Enhancement of Pumping Capacity at Rajiv Gandhi Nagar, Thangalkarai & Kadappa Road in Depot-31 & 32, Area-III

Hiring and running charges for JCB

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Supplying, delivery, Laying and jointing of CI socket spigot pipes (A Class) including rubber gasket joint, earth work excavation for trenches in hard stiff clay,black cotton, hard red earth,shales,murrum gravel, Stoney earth and earth mixed with small size boulders depositing the earth on banks with initial lead of 10m and initial lift of 2m, lowering in to the trenches, aligning including cost & making of Rubber gasket, refilling the trenches with excavated earth, watering, ramming and disposal of surplus earth etc; complete at 1.5m depth to invert.a. 300mm dia

Cutting CI Pipes

300mm dia

300 mm CI D/S 900 Bend

300 mm CI D/S 450 Bend

300 mm CI D/S 22.50 Bend

300 mm CI Collars

80mm Air Valve

100mm CI Sluice valve

300mm CI Sluice valve

300 x300x 100 CI A/F Tee

100 x 80 CI A/f Tapper

300mm CI D/F Pipe-0.5m lg

300mm CI D/F Pipe-1.0m lg

300 mm CI D/F 90 deg Bend

300 mm CI D/F Bellmouth

100 mm CI D/F duckfoot 90 deg Bend

Testing of C.I pipes with hydraulic testing equipment by filling with water and testing to recommended pressure in convenient stetches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges, etc complete for300mm dia.

Hire Charges for Diesel pumpset 10 hp including cost of fuel and machinest for running the machine per hour of running

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm BG jelly for the DI pumping main including the cost of shuttering, compaction, curing etc. complete.

300mm CI D/S 90 degree Bend

300mm CI D/S 45 degree Bend

300 mm CI D/S 22.50 Bend

300mm dia Sluice valve

300mm dia EMF

Construction of 80mm Double Air Valve chamber for 100mm to 350mm dia.pipeline including providing and fixing FRC cover and frame of size 60 x 60cm for size 1.2 x 0.9 x 1.8 m

Forming water bound mecadam to a thickness of 100mm using 1 Cu.m. of 40mm IRC size HBG metal with 0.33cum.of gravel (which will passes through 10mm sieve size) fine for blindage for an area of 10 m2 including spreading metal and gravel fine and packing to camber,consolidation by power roller and including watering and keeping the surface moist for 15 days etc., complete - For temporary road restoration

The Contractor must obtain the existing Static GCP points from CMWSSB which should be considered as the control point with known coordinates X, Y and Z. Survey consultant to ensure the closing error is within permissible limits (SoI Standards) while transferring the levels from the existing Static GCP points and the same to be presented as a report. The same process shall be adopted for random verification of positional accuracy of points established using the PBMs as base. As built survey for every sewage and waterpipeline and other assets must be done using DGPS based RTK method by transferring the coordinates from the nearest Static GCP of CMWSSB. Where there are signal interruptions for the RTKmethod, Total Station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co- ordinates of theassets can then be captured by Total Station. All the features, attributes of all the assets, utilitiescaptured shall be Geo referenced as per standardCoordinate reference system (WGS 84 UTM Zone44N). The final base map with assets and utilities

For the Underground / Surface Assets alongthe roads for the distance ranging from: 2 to 5 km

For Pumping Main

For the Point Underground / Surface Assets along the roads

Bill No. 3c Enhancement of Pumping Capacity by Supply, delivery ,erection and commissioning of non clog sewage submersible pumpset with discharge 250 m3/hr and 20m head along with allied civil and electrical works at Rajiv Gandhi Nagar Sewage Pumping Station in Area III

Supply, delivery, erection, testing and commissioning of submersible sewage non-clog pumps, vertical spindle type pump , wear resistance with submersible motor for the various duty conditions. Pump shall be capable of handling min 100 mm solid size with sewage specific gravity of up to 1.05. Pump shall be of robust construction, Liquid passages shall be finished smooth and designed as to allow free passage to solids. Pump Impeller should be of Non-clog semi open type , single vane / multi vane preferably contra bloc or vortex impeller design. Double mechanical seal with silicon carbide faces should be provided to protect the motor from ingress of sewage along the shaft. The critical speed of the rotor shall be at least 30% above the operating speed. Pumps should have double bearings between the pump & motor. The bearings life shall be minimum 100,000 hrs of operation with greased for life. Pump should be provided with automatic coupling device including pedestal, duck foot bend, stainless steel guide pipe or related accessories of suitable size to facilitate lifting and lowering into guide rails for easy maintenance. Pump shall be provided with a stainless steel lifting chain conforming to BS 970 Gr 304. Pump speed shall be of 9600 rpm for high duty pumps and 960/1450 rpm for low duty pumpsets. Casing and impeller should be of CI Gr. FG 260:IS210 more preferably with hardened impeller.Shaft should be of stainless steel AISI 410. All the fasteners and bolts shall be of AISI 410.The submersible motor shall be operated with 3ph, 415 V(+or– 10%), 50Hz(+or-5 %) dry induction type. Motor shall be capable of giving rated output without reduction in the expected life span when operated continuously. The rotating assembly shall be dynamically balanced as per standards. The starting current of the motor shall not exceed 200% of rated full load current for Star / Delta or ATS starting under any circumstances .The motor shall be suitable for full voltage star delta / ATS starting. The locked rotor current of the motor shall not exceed 600% of full load current unless otherwise specified. Motor shall be designed to withstand 120% of rated speed for two minutes without any mechanical damage, in either direction of rotation.

The motor vibration shall be within the limit specified in applicable standards . Motor should be of IE2, explosion proof compatible for VFD operation together with star-Delta /ATS starter, protection against increase in stator winding temperature (15 deg Celsius), bearing temperature, leakage in the stator housing and terminal box shall be provided and to be suitably interlocked with the control panel for tripping the pump in case of increase in temperature beyond set limit. Insulation class shall be of “Class H” and degree of protection shall be of IP 68 as per IS 4691. Motor shall be suitable for continuous operation in fully submerged or partially submerged condition.The pumpset shall be supplied with power cable of PVC insulated and PVC sheathed, copper, flexible, roundtype with required conductor size and number of cores as per starting method and of specified length for continuous use under water and air. The control cable of PVC insulated, PVC sheathed, flexible for stator winding temperature sensor 3core x 1.5 sq.mm copper conductor and for bimetallic switches 2core x 1.5 sqmm copper conductor shall be provided. Motor shall be supplied with 10m of round submersible copper cable of suitable size. The non clog submersible pumpset shall be provided with suitable starter control panel having all protections as mentioned above. (upto 5 HP - DOL Starter, above 5 HP to 25 HP -Star Delta Panel and beyond 25 HP shall be ATS)

Discharge - 250m3/hr Head - 20m

Supply,delivery and fixing of 200mm dia C.I D/F PIPES AS PER IS 7181/1986 & IS 1537-2m length

Supply,delivery and fixing of 200mm dia CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1986- Tapper

Supply,delivery and fixing of 200mm dia CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1986-Tee

Supply,delivery and fixing of 200mm dia CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1986- 90 degree Bend

Supply,delivery,erection,testing and commissioning of 200 mm dia CI D/F SLUICE VALVE WITH CAP/ WHEEL AS PER IS 14846/2000 PN 1 WITH ISI MARKING (CMWSSB SOR 24-25 P.No.150 SI.No.4-7)

Supply,delivery erection,testing and commissioning of of 200mm dia C.I. D/F REFLUX VALVE AS PER I.S. 5312/ PART I/ 84 WITH BYE-PASS ARRANGEMENTS (PN-1) WITH ISI MARKING

Replacement of capacitor

Supplying & laying of 3½ core 50sq.mm. LTUG cable in a trench to be excavated at a depth of 2 ½ ' putting 6” layer of sand and covering the cable with brick and sand refilling the earth to make good

Supply and fixing of cable gland and termination with aluminium cable by 3½ core 50 sq.mm PVC UG cable and with earth connection

Jointing the 200mm C.I/D.IDouble flanged pipes and specials with rubber insertion to with IS 638(1979) and M.S.bolts and nuts of IS1364-1 (2002), including cost of jointing materials such as bolt and nuts Rubber insertion and labour charges etc., complete

Bill No. 3d Enhancement of Pumping Capacity by Supply, delivery ,erection and commissioning of non clog sewage submersible pumpset with discharge 300 m3/hr and 18m head and 82.5 KVA Diesel Generator set with its allied works at Thangalkarai Sewage Pumping Station in Depot 32,Area III

40HP SUBMERSIBLE PUMPSET

Supply, delivery, erection, testing and commissioning of submersible sewage non-clog pumps, vertical spindle type pump , wear resistance with submersible motor for the various duty conditions. Pump shall be capable of handling min 100 mm solid size with sewage specific gravity of up to 1.05. Pump shall be of robust construction, Liquid passages shall be finished smooth and designed as to allow free passage to solids. Pump Impeller should be of Non-clog semi open type , single vane / multi vane preferably contra bloc or vortex impeller design. Double mechanical seal with silicon carbide faces should be provided to protect the motor from ingress of sewage along the shaft. The critical speed of the rotor shall be at least 30% above the operating speed. Pumps should have double bearings between the pump & motor. The bearings life shall be minimum 100,000 hrs of operation with greased for life. Pump should be provided with automatic coupling device including pedestal, duck foot bend, stainless steel guide pipe or related accessories of suitable size to facilitate lifting and lowering into guide rails for easy maintenance. Pump shall be provided with a stainless steel lifting chain conforming to BS 970 Gr 304. Pump speed shall be of 9600 rpm for high duty pumps and 960/1450 rpm for low duty pumpsets. Casing and impeller should be of CI Gr. FG 260:IS210 more preferably with hardened impeller.Shaft should be of stainless steel AISI 410. All the fasteners and bolts shall be of AISI 410.The submersible motor shall be operated with 3ph, 415 V(+or– 10%), 50Hz(+or-5 %) dry induction type. Motor shall be capable of giving rated output without reduction in the expected life span when operated continuously. The rotating assembly shall be dynamically balanced as per standards. The starting current of the motor shall not exceed 200% of rated full load current for Star / Delta or ATS starting under any circumstances .The motor shall be suitable for full voltage star delta / ATS starting. The locked rotor current of the motor shall not exceed 600% of full load current unless otherwise specified. Motor shall be designed to withstand 120% of rated speed for two minutes without any mechanical damage, in either direction of rotation.

The motor vibration shall be within the limit specified in applicable standards . Motor should be of IE2, explosion proof compatible for VFD operation together with star-Delta /ATS starter, protection against increase in stator winding temperature (15 deg Celsius), bearing temperature, leakage in the stator housing and terminal box shall be provided and to be suitably interlocked with the control panel for tripping the pump in case of increase in temperature beyond set limit. Insulation class shall be of “Class H” and degree of protection shall be of IP 68 as per IS 4691. Motor shall be suitable for continuous operation in fully submerged or partially submerged condition.The pumpset shall be supplied with power cable of PVC insulated and PVC sheathed, copper, flexible, roundtype with required conductor size and number of cores as per starting method and of specified length for continuous use under water and air. The control cable of PVC insulated, PVC sheathed, flexible for stator winding temperature sensor 3core x 1.5 sq.mm copper conductor and for bimetallic switches 2core x 1.5 sqmm copper conductor shall be provided. Motor shall be supplied with 10m of round submersible copper cable of suitable size. The non clog submersible pumpset shall be provided with suitable starter control panel having all protections as mentioned above. (upto 5 HP - DOL Starter, above 5 HP to 25 HP -Star Delta Panel and beyond 25 HP shall be ATS)

Discharge - 300m3/hr Head - 18m

Supply,delivery and fixing of 200mm dia C.I D/F PIPES AS PER IS 7181/1986 & IS 1537-2m length

Supply,delivery and fixing of 200mm dia CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1986- Tapper

Supply,delivery and fixing of 200mm dia CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1986-Tee

Supply,delivery and fixing of 200mm dia CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1986- 90 degree Bend

Supply,delivery,erection,testing and commissioning of 200 mm dia CI D/F SLUICE VALVE WITH CAP/ WHEEL AS PER IS 14846/2000 PN 1 WITH ISI MARKING

Supply,delivery erection,testing and commissioning of of 200mm dia C.I. D/F REFLUX VALVE AS PER I.S. 5312/ PART I/ 84 WITH BYE-PASS ARRANGEMENTS (PN-1) WITH ISI MARKING

Supply,delivery and fixing of MCCB

125A 3 Pole MCCB (Pump)

63A 3 Pole MCCB (Capacitor)

Supplying & laying of 3½ core 95sq.mm. LTUG cable in a trench to be excavated at a depth of 2 ½ ' putting 6” layer of sand and covering the cable with brick and sand refilling the earth to make good

Supply and fixing of cable gland and termination with aluminium cable by 3½ core 95 sq.mm PVC UG cable and with earth connection

Replacement of capacitor

Jointing the 200mm C.I/D.IDouble flanged pipes and specials with rubber insertion to with IS 638(1979) and M.S.bolts and nuts of IS1364-1 (2002), including cost of jointing materials such as bolt and nuts Rubber insertion and labour charges etc., complete

100 KVA Diesel Generator Set with acoustic enclosure conforming to CPCB IV+ Norms and BIS Specifications with AMF panel

Providing foundation of DG set

Excavation in hard stiff clay, stiff black cotton, hard red earth, shales muram, gravel stoney earth and earth mixed with small size boulders as per SS 20B with initial lead of 10m and lift of 2.0 m.

Supply and filling sand for foundation and basement including watering conslidating ramming etc., complete.

Cement concrete 1:4:8 using 40mm gauge hard broken stone jelly for plain cement concrete works including laying in layers of not more than 15cm thick including ramming, curing,etc., omplete.

Stock brick work with II class bricks in cement mortar 1:5 for 23 cm thick wall including curing etc., complete.

Plastering with cement mortar 1:4 for 20mm thick including ciuring etc., complete.

Supplying and fabricating and laying in position MS round or RTS rode for RCC works including cost of reinforcement , binding wire, cuttingbending ,cranking and typing in position with binding wire assembly etc.,

Cement concrete 1:1/2:3 using 20mm gauge hard broken stone jelly for reinforcement cement concrete works excluding cost of steel, centering, shuttering and cost of steel reinforcement but including laying in position, compacting, curing, finishing, etc., complete

Providing form work with centering for soffits of reinforced cement concrete slabs or plain surfaces including strutting upto 3m high

Painting two coats with approved cement paint over cement plastered wall surface, ceiling and other new surfaces including cleaning preparing the surface and curing, etc., complete.

Painting two coats with approved cement paint over one coat of cement paint over cement plastered wall surface, ceiling including cleaning preparing the surface and curing, etc., complete.

Laying of Cable & Earthing

Supplying & laying of 3½ core 95sq.mm. LTUG cable in a trench to be excavated at a depth of 2 ½ ' putting 6” layer of sand and covering the cable with brick and sand refilling the earth to make good

From control panel of DG to EB Metering Board

Supplying and fixing of cable gland and termination with Al.cable 3 1/2 core 95 sq.mm PVC insulated PVC sheathed armoured aluminium LT UG cable and with earth connection.

Supplying and laying of 3mm X 25mm copper earth flat, including necessary chipping and masanory work etc., complete.

Providing MS shed for 100 KVA DG set with approved colour roofing sheet with necessary M.S square pipes. Including cutting, welding and civil works etc., complete as per site condition.

Bill No. 3e Enhancement of Pumping Capacity by Supply, delivery ,erection and commissioning of non clog sewage submersible pumpset with discharge 560 m3/hr and 47m head along with allied civil and electrical works at Kadappa Road HT Sewage Pumping Station in Area III

Supply and delivery of submersible sewage non-clog pumps, vertical spindle type pump , wear resistance with submersible motor for the various duty conditions. Pump shall be capable of handling min 100 mm solid size with sewage specific gravity of up to 1.05. Pump shall be of robust construction, Liquid passages shall be finished smooth and designed as to allow free passage to solids. Pump Impeller should be of Non-clog semi open type , single vane / multi vane preferably contra bloc or vortex impeller design. Double mechanical seal with silicon carbide faces should be provided to protect the motor from ingress of sewage along the shaft. The critical speed of the rotor shall be at least 30% above the operating speed. Pumps should have double bearings between the pump & motor. The bearings life shall be minimum 100,000 hrs of operation with greased for life. Pump should be provided with automatic coupling device including pedestal, duck foot bend, stainless steel guide pipe or related accessories of suitable size to facilitate lifting and lowering into guide rails for easy maintenance. Pump shall be provided with a stainless steel lifting chain conforming to BS 970 Gr 304. Pump speed shall be of 9600 rpm for high duty pumps and 960/1450 rpm for low duty pumpsets. Casing and impeller should be of CI Gr. FG 260:IS210 more preferably with hardened impeller.Shaft should be of stainless steel AISI 410. All the fasteners and bolts shall be of AISI 410.The submersible motor shall be operated with 3ph, 415 V(+or– 10%), 50Hz(+or-5 %) dry induction type. Motor shall be capable of giving rated output without reduction in the expected life span when operated continuously. The rotating assembly shall be dynamically balanced as per standards. The starting current of the motor shall not exceed 200% of rated full load current for Star / Delta or ATS starting under any circumstances .The motor shall be suitable for full voltage star delta / ATS starting. The locked rotor current of the motor shall not exceed 600% of full load current unless otherwise specified. Motor shall be designed to withstand 120% of rated speed for two minutes without any mechanical damage, in either direction of rotation.

The motor vibration shall be within the limit specified in applicable standards . Motor should be of IE2, explosion proof compatible for VFD operation together with star-Delta /ATS starter, protection against increase in stator winding temperature (15 deg Celsius), bearing temperature, leakage in the stator housing and terminal box shall be provided and to be suitably interlocked with the control panel for tripping the pump in case of increase in temperature beyond set limit. Insulation class shall be of “Class H” and degree of protection shall be of IP 68 as per IS 4691. Motor shall be suitable for continuous operation in fully submerged or partially submerged condition.The pumpset shall be supplied with power cable of PVC insulated and PVC sheathed, copper, flexible, roundtype with required conductor size and number of cores as per starting method and of specified length for continuous use under water and air. The control cable of PVC insulated, PVC sheathed, flexible for stator winding temperature sensor 3core x 1.5 sq.mm copper conductor and for bimetallic switches 2core x 1.5 sqmm copper conductor shall be provided. Motor shall be supplied with 10m of round submersible copper cable of suitable size. The non clog submersible pumpset shall be provided with suitable starter control panel having all protections as mentioned above. (upto 5 HP - DOL Starter, above 5 HP to 25 HP -Star Delta Panel and beyond 25 HP shall be ATS)

Discharge - 560m3/hr Head - 47m

Supply,delivery and fixing of 300mm dia C.I D/F PIPES AS PER IS 7181/1986 & IS 1537-2m length

Supply,delivery and fixing of 300mm dia CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1986- Tapper

Supply,delivery and fixing of 300mm dia CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1986-Tee

Supply,delivery and fixing of 300mm dia CI D/F SPECIALS & S/S SPECIALS AS PER IS 1538/1986- 90 degree Bend

Supply,delivery,erection,testing and commissioning of 300 mm dia CI D/F SLUICE VALVE WITH CAP/ WHEEL AS PER IS 14846/2000 PN 1 WITH ISI MARKING

Supply,delivery erection,testing and commissioning of of 300mm dia C.I. D/F REFLUX VALVE AS PER I.S. 5312/ PART I/ 84 WITH BYE-PASS ARRANGEMENTS (PN-1) WITH ISI MARKING

Jointing the 300mm C.I/D.IDouble flanged pipes and specials with rubber insertion to with IS 638(1979) and M.S.bolts and nuts of IS1364-1 (2002), including cost of jointing materials such as bolt and nuts Rubber insertion and labour charges etc., complete

Bill No. 3f Design, Manufacture, Supply, Delivery, Installation and Commissioning of Odour Control System (Activated Carbon Filter) at at various SPS in Area III

Design, Manufacture, Supply, Delivery, Installation and Commissioning of Odour Control System (Activated Carbon Filter) at Mathur Sewage Pumping Station. Description: The counter-flow scrubbing system arrangement is designed as per VDI 3679 German guidelines for design of odour control systems. The system with airflow capacity of 800 m³/hr with suitable fresh air dilution of 12 times as per ATV M204E and NFPA 820 international standard for ventilation with at least 99.99% odour removal efficiency for effective odour (Hydrogen Sulphide gas) elimination from the source tank (Tank Discharge Pit, Collection Tank, Screen Well 1, Screen well 2 & Suction Well). The system include the pre-filter with mist eliminator, radial fan (1 duty only), activated carbon filter with carbon media, inter- connecting ductwork within the system, external ductwork from the source tank (Tank Discharge Pit, Collection Tank, Screen Well 1, Screen well 2 & Suction Well) to the pre-filter, tank covering system for the source tank (Tank Discharge Pit, Collection Tank, Screen Well 1, Screen well 2 & Suction Well), on/off type switch cabinet, differential pressure gauges, inlet and outlet H₂S monitors for measuring the concentration of Hydrogen Sulphide before and after treatment, manual valves for water inlet, drain outlet and sampling ports. The ACF vessel, pre-filter vessel, inter-connecting ductwork, external ductwork, tank covering systems are all made of specially weaved thermoplastic material suitable for drastic energized anti-biting and eroding against a group of air pollutants. They shall be made of chemical and UV resistant orthotropic composite material like SG-CSM-ECR mat with PSR-4503 resin grade suitable for outdoor application. The pre-filter media shall be designed to trap moisture particles effectively. The radial fan for toxic gas extraction shall be of airflow capacity 800 m³/hr and static pressure 1,500 Pa and material of construction high quality stainless steel grade (SS316). The carbon filter media shall be designed to have high H₂S adsorption capacity such as 'Grasp- Sulfone' virgin coal based pelletized catalytical impregnated water re-generable activated carbon media of suitable quantity as per manufacturer standard to maintain the necessary contain time based on VDI 3679 international guidelines for the effective removal of toxic odorous gases.

Bill No. 4, Extension of pumping mains of Muthumariaman Koil Street SPS, Thanikachalam Nagar SPS, Sastri Nagar road side SPS and Mehta Nagr SPS from bell mouth Chamber to the nearest sewage pumping Station

Bill No. 4a Extension of 300mm dia Thanikachalam nagar SPS CI force main from belmouth chamber at Sriraman salai (North) to Chandra Prabu Colony pumping station and its allied works in Depot-29, Area-III

Hiring and running charges for JCB

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking rrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Supplying and Laying of CI socket spigot pipes (A Class) including rubber gasket joint, earth work excavation for trenches in hard stiff clay,black cotton, hard red earth,shales,murrum gravel, stoney earth and earth mixed with small size boulders depositing the earth on banks with initial lead of 10m and initial lift of 2m, lowering in to the trenches, aligning including refilling the trenches with excavated earth, watering, ramming and disposal of surplus earth etc; complete at 1.5m depth to invert. a. 300mm dia

Cutting CI Pipes

300mm dia

300mm CI D/F Pipe-0.5m lg

300mm CI D/F Pipe-1.0m lg

300mm CI Sluice valve

80mm Air Valve

100mm CI Sluice valve

300 x300x 100 CI A/F TEE

100 x 80 CI A/f Tapper

300 mm CI D/F 90 deg Bend

300 mm CI D/F Bellmouth

300 mm CI D/F duckfoot 90 deg Bend

300 mm D/S CI 90 deg Bend

300 mm D/S CI 45 deg Bend

300 mm D/S CI Collars

Making Rubber joints - 300mm dia

Testing of 300 mm dia C.I pipes with hydraulic testing equipment by filling with water and testing to recommended pressure in convenient stetches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges, etc complete for 300mm dia.

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm BG jelly for the DI pumping main including the cost ofshuttering, compaction, curing etc. complete.

300mm CI D/S 90 degree Bend

300mm CI D/S 45 degree Bend

Construction of Valve Chamber for Sluice Valve and Non Return Valve in second class brick work in CM 1:4 proportion with 12 mm thick outside plastering and 20mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges, CI steps, etc. as per drawing.

80mm Air Valve

300mm CI Sluice valve

Hire Charges for Diesel pumpset above 3hp up to 7.5 hp including cost of fuel and machinest for running the machine per hour of running

Forming water bound mecadam to a thickness of 100mm using 1 Cu.m. of 40mm IRC size HBG metal with 0.33cum.of gravel (which will passes through 10mm sieve size) fine for blindage for an area of 10 m2 including spreading metal and gravel fine and packing to camber,consolidation by power roller and including watering and keeping the surface moist for 15 days etc., complete.

Supplying , delivery and erection of various sizes of Electromagnetic Flow Meter in various sewage pumping stations in Area III

Supply, delivery ,erection and commissioning of non clog sewage submersible pumpset with discharge 250 m3/hr and 15m head along with allied civil and electrical works at Thanikachalam Nagar Sewage Pumping Station in Area III

As built survey for every sewage and water pipeline and other assets must be done using DGPS based RTK method by transferring the coordinates from the nearest Static GCP of CMWSSB. Where there are signal interruptions for the RTK method, Total Station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co- ordinates of the assets can then be captured by Total Station. All the features, attributes of all the assets, utilities captured shall be Geo referenced as per standard Coordinate reference system (WGS 84 UTM Zone 44N). The final base map with assets and utilities shall be furnished in (.shp) format. The geo referenced assets and utilities along with the attributes (as specified by the GIS Wing, CMWSSB) shall be converted into proper geo database (FGDB / PGDB) with the attributes. One set Hard and Soft Copy of all the CMWSSB assets and utility has to be prepared category wise network wise in A0 Print for verification in a print scale of 1:1000 in A0 plot, with standard legends in international and NUIS standards and should be legible and three sets of final Hard Copy in A0 print.

(a) For the Underground / Surface Assets along the roads for the distance ranging from: 2 to 5 KM

b) For UGSS surface assets

Bill No. 4b Extension of 200mm dia Sastri nagar roadside SPS CI force main from belmouth chamber at Prakash Nagar Main road to Thanikachalam Nagar pumping station and its allied works in Depot-29, Area-III

Hiring and running charges for JCB

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking rrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Supplying and Laying of CI socket spigot pipes (LA Class) including rubber gasket joint, earth work excavation for trenches in hard stiff clay,black cotton, hard red earth,shales,murrum gravel, stoney earth and earth mixed with small size boulders depositing the earth on banks with initial lead of 10m and initial lift of 2m, lowering in to the trenches, aligning including refilling the trenches with excavated earth, watering, ramming and disposal of surplus earth etc; complete at 1.5m depth to invert. a. 200mm dia

Cutting CI Pipes

200mm dia

200mm CI D/F Pipe-0.5m lg

200mm CI D/F Pipe-1.0m lg

200mm CI Sluice valve

80mm Air Valve

100mm CI Sluice valve

200 x200x 100 CI A/F TEE

100 x 80 CI A/f Tapper

200 mm CI D/F 900 Bend

200 mm CI D/F Bellmouth

200 mm CI D/F duckfoot 900 Bend

200 mm D/S CI 900 Bend

200 mm D/S CI 450 Bend

200 mm D/S CI Collars

Making Rubber joints - 200mm dia

Testing of C.I pipes with hydraulic testing equipment by filling with water and testing to recommended pressure in convenient stetches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges, etc complete for 300mm dia.

Hire Charges for Diesel pumpset above 3hp up to 7.5 hp including cost of fuel and machinest for running the machine per hour of running

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm BG jelly for the DI pumping main including the cost of shuttering, compaction, curing etc. complete.

200mm CI D/S 90 degree Bend

200mm CI D/S 45 degree Bend

Construction of Valve Chamber for Sluice Valve and Non Return Valve in second class brick work in CM 1:4 proportion with 12 mm thick outside plastering and 20mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges, CI steps, etc. as per drawing.

80mm Air Valve

200 mm CI sluice valve

Forming water bound mecadam to a thickness of 100mm using 1 Cu.m. of 40mm IRC size HBG metal with 0.33cum.of gravel (which will passes through 10mm sieve size) fine for blindage for an area of 10 m2 including spreading metal and gravel fine and packing to camber,consolidation by power roller and including watering and keeping the surface moist for 15 days etc., complete.

Supply, delivery ,erection and commissioning of non clog sewage submersible pumpset with discharge 72 m3/hr and 13m head along with allied electrical works at Sastri Nagar Sewage Pumping Station in Area III

Bill No. 4c Laying of 300mm dia CI Sewage Pumping main from Metha Nagar Sewage Pumping Station to Bank Colony Sewage Pumping Station and its allied works in Depot 26 & 27, Area III

Hiring and running charges for JCB

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking rrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Supplying and Laying of CI socket spigot pipes (A Class) including rubber gasket joint, earth work excavation for trenches in hard stiff clay,black cotton, hard red earth,shales,murrum gravel, stoney earth and earth mixed with small size boulders depositing the earth on banks with initial lead of 10m and initial lift of 2m, lowering in to the trenches, aligning including refilling the trenches with excavated earth, watering, ramming and disposal of surplus earth etc; complete at 1.5m depth to invert. a. 300mm dia

Cutting CI Pipes

300mm dia

300 mm CI D/S 900 Bend

300 mm CI D/S 450 Bend

300 mm CI D/S 22.50 Bend

300 mm CI Collars

Making Rubber joints - 300mm dia

80mm Air Valve

100mm CI Sluice valve

300mm CI Sluice valve

300 x300x 100 CI A/F Tee

100 x 80 CI A/f Tapper

300mm CI D/F Pipe-0.5m lg

300mm CI D/F Pipe-1.0m lg

300 mm CI D/F 90 deg Bend

300 mm CI D/F Bellmouth

100 mm CI D/F duckfoot 90 deg Bend

Testing of C.I pipes with hydraulic testing equipment by filling with water and testing to recommended pressure in convenient stetches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges, etc complete for 300mm dia.

Hire Charges for Diesel pumpset above 3hp up to 7.5 hp including cost of fuel and machinest for running the machine per hour of running

Providing thrust blocks with Plain Cement Concrete in 1:3:6 with 40mm BG jelly for the DI pumping main including the cost of shuttering, compaction, curing etc. complete.

300mm CI D/S 90 degree Bend

300mm CI D/S 45 degree Bend

300 mm CI D/S 22.50 Bend

Construction of 80mm Double Air Valve chamber for 100mm to 350mm dia.pipeline including providing and fixing FRC cover and frame of size 60 x 60cm for size 1.2 x 0.9 x 1.8 m

Forming water bound mecadam to a thickness of 100mm using 1 Cu.m. of 40mm IRC size HBG metal with 0.33cum.of gravel (which will passes through 10mm sieve size) fine for blindage for an area of 10 m2 including spreading metal and gravel fine and packing to camber,consolidation by power roller and including watering and keeping the surface moist for 15 days etc., complete.

Supply, delivery ,erection and commissioning of non clog sewage submersible pumpset with discharge 110 m3/hr and 15m head along with allied electrical works at Metha Nagar Sewage Pumping Station in Area III

Bill No. 4d Replacement of Damaged RCC Gravity sewer main CI Gravity Sewer main at Bank Colony Arul Nagar Link Road and Bank Colony 5th Street in Depot 27 Area III.

Supplying and Laying, jointing with Lead/Lead wool joints (Labour only),testing of C.I. pipes including earthwork excavation for trenches in hard stiff clay, stiff black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m. and carting of pipes from any of the Board’s stores to the site of work, lowering into trenches and aligning, refilling the trenches with excavated soil, dewatering, watering and ramming to consolidation, disposal of surplus earth etc., complete (Timbering included for Depths 3.0m, 3.5m, ..........upto 8.5m)

500 mm dia

At 4 m deep to invert

600 mm dia

At 3.5 m deep to invert

700 mm dia

At 4 m deep to invert

At 4.5 m deep to invert

At 5 m deep to invert

At 5.5 m deep to invert

At 7m deep to invert

Making Rubber Joint for Labour

500 mm dia

600 mm dia

700 mm dia

Cutting of CI Mains

500 mm dia

600 mm dia

700 mm dia

Testing of M.S./C.I./P.V.C./D.I pipes with hydraulic testing equipment by filling with water(including cost of water @ Rs.73/KL) and testing to recommended pressure in convenient stetches and attending the bursts if any occured during the test, excluding the cost of pipes, including other incidental and operational charges, etc., complete for the following diametres of pipes.

500 mm dia

600 mm dia

700 mm dia

C.C 1:3:6, using 40 mm gauge hard broken stone jelly for plain cement concrete works including laying in layers of not morethan 15cm thick including ramming curing etc. complete

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Dewatering using 10HP to 70HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete. (CMWSSB Data Sheet) One Machine hole to Another Machine Hole (12.5 HP)

Dewatering using 10HP to 70HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete. (CMWSSB Data Sheet) One Machine hole to Another Machine Hole (20 HP)

Providind Dummies in pipes including removing dummys after commencement of work ets.,

500 mm dia

600 mm dia

700 mm dia

Bill No. 5 Strengthening of Sewer Collection System in RK Nagar North commanding Area (Depot 38 & 41), Area-IV

Supply, delivery, laying and jointing of Double wall corrugated /structured wall plastic polyethylene/polypropylene pipes DWC PE or PP of class SN-8 with non-smooth external Annular Corrugated and Smooth Internal Surfaces in Standard lengths with online coupler and spigot type confirming to IS 16098 (Part-2) 2013 / EN: 13476-3 (latest revision) including elastomeric sealing ring gasket suitable for DWC PE or PP pipes conforming to IS: 5382 (latest revision), freight,insurance, loading into the truck and transporting to the stores / site.. etc including earth work excavation in hard stiff clay,stiff black cotton,hard red earth, shales, muram, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m and lowering into trenches, aligning and testing of DWC PE or PP pipes, watering and ramming to consolidation, etc., complete

Non Bus Route

295/250mm OD/ID DWC PE or PP Pipe

at 1 m deep

at 1.5 m deep

at 2 m deep

Bus Route

295/250mm OD/ID DWC PE or PP Pipe

at 1.5 m deep

480/400mm OD/ID DWC PE or PP pipe

at 2 m deep

Supply, delivery, laying and jointing of Double wall corrugated /structured wall plastic polyethylene/polypropylene pipes DWC PE or PP of class SN-8 with non-smooth external Annular Corrugated and Smooth Internal Surfaces in Standard lengths with online coupler and spigot type confirming to IS 16098 (Part-2) 2013 / EN: 13476-3 (latest revision) including elastomeric sealing ring gasket suitable for DWC PE or PP pipes conforming to IS: 5382 (latest revision), freight,insurance, loading into the truck and transporting to the stores / site.. etc including earth work excavation in hard stiff clay,stiff black cotton,hard red earth, shales, muram, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m and lowering into trenches, aligning and testing of DWC PE or PP pipes, watering and ramming to consolidation, etc., complete

Non Bus Route

295/250mm OD/ID DWC PE or PP Pipe

at 2.5 m deep

at 3 m deep

at 3.5 m deep

at 4 m deep

358/300mm OD/ID DWC PE or PP pipe

at 3.5 m deep

at 4 m deep

480/400mm OD/ID DWC PE or PP pipe

at 3.5 m deep

at 4 m deep

at 4.5 m deep

597/500mm OD/ID DWC PE or PP pipe

at 4 m deep

at 4.5 m deep

715/600mm OD/ID DWC PE or PP pipe

at 4.5 m deep

Bus Route

295/250mm OD/ID DWC PE or PP Pipe

at 2.5 m deep

at 3 m deep

at 3.5 m deep

Supply, delivery of CI socket spigot pipes of LA class including rubber gaskets as per the latest revision of IS 1536, laying, jointing and testing CI pipes (LA class) including earth work excavation for trenches in hard stiff clay, black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m and initial lift of 2m, lowering the pipes in to the trenches, aligning, making rubber joints, testing CI pipes, refilling the trenches with excavated soil, watering and ramming to consolidation, disposal of surplus earth including timbering the trenches for the depths of 2.5m and above, pumping out sub soil water etc., complete. (For Gravity Sewers)

Non Bus Route

500mm dia CI pipe

at 5 m deep

Cement concrete 1:3:6 using Crushed stone sand (M-sand) and 40mm gauge hard broken stone jelly & SRC for Plain cement concrete works including laying in layers of not more than 15cm thick,compacting, curing etc complete for encasing and end concrete.

Non Bus Route

Construction of Machine Holes using sulphate resistant cement at various depths to invert including earthwork excavation as per SS 20B, laying cement concrete in C.M. 1:3:6 using Crushed stone sand (M sand) and 40mm B.G.jelly for foundation, sinking well kerb below G.L. for 4.5m depth and above, pumping, timbering charges for 2.5m depth and above, stock brick work in C.M. 1:3, for 23cm thick wall and over 23cm thick wall, plastering interior with C.M. 1:3, 20mm thick and exterior with C.M. 1:3, 12mm thick, laying plain cement concrete 1:3:6 using 12.0mm to 20mm B.G.jelly fixing the frame, providing C.I. steps, Machine Hole cover and frame, benching and channelling including refilling the trench with excavated earth and disposal of surplus earth etc. complete for the following sizes for each Machine Hole

Non Bus Route

at 1.5m deep

Bus Route

at 1.5m deep

Construction of Precast circular RCC Machine Holes using sulphate resistant cement with M30 design mix concrete using Crushed stone sand (M sand) including earthwork excavation as per SS20B including timbering and pumping charges(for 2.5m depth and above),Providing Plain Cement Concrete 1:1.5:3 using 20mm B.G. jelly for foundation,supplying and filling sand for bedding, Providing base units of 1m height(base slab and sidewall),riser unit (without corbel) of varying heights to suit the various depth requirements and roof slab including cost of steel reinforcement, cost of fabricating the steel mould using MS sheet and ISA angles including material and labour cost, Providing CI steps,fixing FRC Machine Hole frame and door,benching and channelling ,refilling with excavated earth and disposal of surplus earth, joining of precast units by grouting with CM1:1 and polyurethane based water proofing compound 1% (by weight of cement ) at shear key and protruded bars- grout holes locations,Cost of conveyance and erection charges of precast Machine Holes at the required position as directed by the engineer at site including testing the Machine Hole with water for 48 hours to check water tightness and rectifying the defects if anyfor the following sizes and depths.

Non Bus Route

1200mm dia Circular Machine Hole for Sewers (upto 450mm dia)

at 2.0m deep

at 2.5m deep

Construction of RCC Machine Holes using sulphate resistant cement with M30 design mix concrete using Crushed stone sand (M sand) including earthwork excavation as per SS20B , providing point edge to well kerb using ISA 150x75x10mm weighing at 16.9kg/m,sinking well kerb below 2m from G.L.or by open excavation for various depth as per site condition with M30 mix for side wall, raft and roof slab,including cost of steel reinforcement ,including bailing and pumping out water, formwork, plugging the bottom with PCC 1:3:6 using 40mm hard broken granite jelly, laying plain cement concrete 1:3:6 using 12mm to 20mm hard broken granite jelly for fixing frame, fixing FRC Machine Hole cover and frame, providing CI steps, ,benching and channelling including refilling the trenches with excavated earth and disposal of earth etc. Including testing the Machine Hole with water for 48hours to check water tightness and rectifying the defects if any complete for the following size of Machine Holes.

Non Bus Route

1200mm dia Circular Machine Hole for Sewers (upto 450mm dia)

at 3.0m deep

at 3.5m deep

at 4.0m deep

at 4.5m deep

1500mm dia Circular Machine Hole for Sewers (500mm dia & above)

at 4.0m deep

at 4.5m deep

Bus Route

1200mm dia Circular Machine Hole for Sewers (upto 450mm dia)

at 3.5m deep

Supplying and fixing 150mm dia MS Ventilating columns 6.0m length with CI Base for Ventilating column, Wire Cowl, Supplying, Laying, Jointing and Testing of 150mm dia stoneware pipe to a length of 6m for each column with 100mm SW stopper including cost of joining materials such as cement, sand and spun yarn with necessary civil works for construction of Masonry Pillars, earthwork excavation, refilling etc., complete.

Non Bus Route

Bus Route

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites.

Non Bus Route

Bus Route

Road Cutting

Non Bus Route

Asphalt Road

Bus Route

State Highways/ National Highways

Cutting DWC Pipes

Providing House service connection: Supplying, laying jointing and testing UPVC pipe including earthwork excavation for trenches in hard stiff clay, stiff black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m. lowering the pipes into the trenches, aligning, refilling the trenches with excavated earth in layers of not more than 23cm thick watering, ramming to consolidation and disposal of surplus earth etc., complete

Non Bus Route

110mm dia upto a depth of 1.0m

160mm dia upto a depth of 1.5m

Supplying and filling with stone dust for bedding for a thickness of 10cm and back fill envelope for a thickness of 150mm above the crown of the pipe, including ramming, consolidation etc., complete.

Non Bus Route

Bedding

Bus Route

Bedding

Refilling with excavated soils (other than sand) complying with standard specifications for filling in foundations and basement.(for DWC PE or PP pipe length).

Non Bus Route

Bus Route

Disposal of surplus earth (for DWC PE or PP pipe length)

Non Bus Route

Bus Route

Making through holes in plain or reinforced cement concrete with diamond core drilling system by using BOSCH power tools of following diameters - depth per cm

Non Bus Route

Construction of precast anchor block using machine batched, machine mixed and machine vibrated design mix cement concrete of M25 grade with Sulphate resistant cement for reinforced cement concrete structural elements under controlled water cement ratio with plasticiser using 20mm and down graded machine broken granite stone jelly including curing, the cost of steel reinforcement, cost of fabricating the steel mould using MS sheet and ISA angles with material and labour cost, conveyance and erection charges at the required position as directed by the Board Engineer at site.

Temporary bypassing of sewer including Plugging the mouth of pipe/s inside sewer manhole using suitable plugging system and installation of bypass arrangement for bypassing the sewage flow, including, but not limited, to pumps, pipes,connections, couplings,electrical accessories, support traffic diversions arrangements etc.including desilting of manholes, disposal of debris as per the instructions of Engineer-in-Charge and keeping the manhole free from seepage and removal of bypass by deplugging the mouth of pipe inside sewer manhole and removal of by pass system and making the sewer system operational including all labour,Machinery, material, taxes etc. as per the specifications and directions of the Engineer.

Non Bus Route

For manholes of pipes upto 1200 mm dia

As built survey every sewage and water pipeline and other assetsmust be done using DGPS based RTK method by transferring the coordinates from the nearest static GCP of CMWSSB. Where there are signal interruption for the RTK method, Total station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co-odinates of the assets can then be captured by Total Station. All the features, attributes of all the assets, utilities captured shall be Geo reference as per standard coordinate reference system ( WGS 84 UTM Zone 44N). The final basemap with assets and utilities shall be furnished in (.shp) format. The geo reference assets and utilities along with the attributes (as specified by the GIS Wing, CMWSSB) shall be converted into proper geo database (FGDB/PGDB) with the attributes. One set Hard and Soft copy of all the CMWSSB assets and utility has to be prepared category wise network wise in A0 print for verification in a print scale of 1:1000 in A0 plot, with standard legends in international and NUIS standards and should be legible and three sets of final hard copy in A0 print. a.For the undergrond/surface assets along the roads for the distance ranging from: (<2KM) = 19000/-. in this estimate 330m length

For the Point Underground Surface Assets along the Road

Hire charges for diesel pumpset for 3 HP with fuel and crew charges including transportation

Sub Total (excluding GST)

Vishwa Infrastructures & Services Pvt Ltd (BID ID -1348081)