Supplying and Laying of dedicated 150mm dia DI water main for a length of 3100 metres to supply of 0.3 MLD from Anna Poonga WDS in Area-V to the Chennai Port Trust at Kasimedu Fishing Harbour in Depot-43, Area-IV.

Amount

Bill No.1:Supplying and Laying dedicated 150 mm dia. D.I water main for a length of 3100 metres to supply of 0.3 MLD of water from the Anna Poonga WDS in Area-V to the Chennai Fishing Harbour Management Committee at Kasimedu Fishing Harbour

Cutting asphaltic / concrete road

Road cutting along Bus Route Road

Supplying and Laying D.I. pipes (K9) as per IS 8329/2000 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 lift 2.00m 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 consolidationet., complete for the pipes of dia meter 1.5m depth .(Including backfilling). as per schedule.

150mm dia K9 Pipes at 1.5 m depth-BT road

150mm dia K9 Pipes at 1.5 m depth-Interior road-Earthen road

Providing Iron Barricading of size 2.50 m width and 1.75 m ht using 40x40x4 mm angle for outer frame supports 25x25x3 mm angle for inner frame supports 20 gauge thickness including cutting welding and CMWSSB Metrowater Boards and work details verticals, painting the verticals, painting the vertical posts in different colours, tieing with coir rope, fixing danger flags, danger lights, reflectors including watching during night and placing the barricading units as directed at the sites

Supplying of specials,Conveying and fixing of Specials (IS 1538/1986)

150 mm DI D/S 90 deg bend

150 mm dia Sluice Valve with tail piece (IS14846/2000)

150mm dia MJ collar

150mm dia Fl/Spi Tail piece

150mm dia Fl/Soc Tail piece

80mm double Air valve

150x80mm DI S/S/Fl Tee

Construction of thrust blocks using Cement Concrete 1:3:6 ,40mm B.G.jelly for Plain Cement Concrete for 150mm dia 90 deg bend at 2m depth

Cutting D.I. mains

For 150 mm dia. pipes

Hire charges for diesel pumpset for 7.5 HP with fuel and operator charges including transportation.

Testing of D.I.pipes with hydrulic testing equipment by fillling with water and testing to recommended pressure in convenient sretches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges,etc., complete.

150mm dia DI Pipes

Construction of Sluice Valve chambers

For 100 to 250mm dia Sluice valve including providing and fixing L.S.Cover and frame of size 60x60cm. For size 1.35m x 1.20m x 1.55m

Construction of water meter chamber of size 1.4m x 1.4 m x 2m for mounting 100 mm dia water meter.

Construction of 80 mm Double Air Valve chamber for 100 mm to 350 mm dia. Pipeline including providing and fixing FRC cover and frame of size 60x60 cm for size 1.2 x 0.9 x 1.8 m

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 1.0 Mpa working pressure, manufactured to highest standard available for mag-meters, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow. The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects. Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”. Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should be user friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished. (100mm)

Supplying of specials,Conveying and fixing of Specials (IS 1538/1986)

100mm dia. D/F DI pipe length 0.5m (IS 8329/2000)

150x100 mm DI D/F Taper

100 mm DI Fl/ Spi tail piece

100 mm DI Fl/ Soc tail piece

150mm dia. D/F DI pipe length 0.5m (IS 8329/2000)

150 mm DI Fl/ Spi tail piece

Incidental charges during execution of work along pipe laying, for the following works:

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. 110mm dia upto a depth of 1.5m for Sewer

Supplying of 4 inch PVC Coupler

Replacement of Underground Utilities (PVC Pipe) damaged during earthwrk excavation for pipe laying works including cost of additional earthwork excavation excavation in all soil starts, including BT/CC road cutting, removal of slushy soil and replacing the pipelie with sound pipe, including suply and delivery of PVC pipes, couplers,jointing materials and required specials, cutting, conveyig,laying,jointing and cost of refilling for the additional earthowr etc complete and as directed by the TWAD board Officers for 110mm dia PVC pipe.

Providing 200 mm dia PVC casing pipes across SWD

Hire charges for power breaker to dismantle the side walls of SWD

Cement concrete 1:2:4 using Crushed stone sand (M-sand) and 12 to 20mm gauge hard broken stone jelly for plain concrete work including laying compacting curing,etc., complete

InterConnection with Pumpset

150x100mm dia DI DF Taper

150mm dia D/F pipe (2 m length)

150mm dia D/F DI 90 deg bend

Non return valve 150mm dia

150mm dia sluice valve

150mm dia flange spigot DI pipe

150mm dia D/F DI 90 deg duck foot bend

150mm dia DI D/F pipe (0.5m long)

At UGT discharge point

150mm dia D/F DI 90 deg duck foot bend

150mm dia D/F pipe (2 m length)

150mm dia D/F DI 90 deg bend

150mm dia DI bell mouth

Construction of thrust blocks using Cement Concrete 1:3:6 ,40mm B.G.jelly for Plain Cement Concrete for 150mm dia 90 deg duck foot bend

Providing and laying in position machine batched, machine mixed and machine vibrated design mix cement concrete of M20 grade for reinforced cement concrete structural elements under controlled water cement ratio with plastic is erusing 20mm and down graded machine broken granite stone jelly excluding the cost of centering and shuttering and reinfocement but including curing, fixing, fan clamps etc., as per standard specification and as directed by the Board officers complete.

RTK SURVEY :The Contractor must obtain the existing permanent benchmark from CMWSSB which should be considered as the control point with known coordinates X,Y and Z. The Static GCP must be established from this PBM using Triangulation network method and frog and leap method for linear areas. The Contractor must strictly avoid Radial offset method. If the PBM is not available with CMWSSB within the Area of interest (AoI), the contractor must procure the nearby Survey of India, GTS Benchmark available to establish the Static GCP of the project location using the above- mentioned methods only. Survey consultant to ensure the closing error is within permissible limits (SOI Standards) while transferring the levels from nearest SOI GTS BM to the PBMs 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

Bill No.2: Pumpset & Electrical arrangement

Supply and delivery of Open well Submersible pump set conforming to IS 14220 /2002 and as amended thereafter and BEE 3 Star Rated capable of discharging the following duties due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze mixe type impeller, CI FG 200 grade casing and brass screws and rotor shall be of copper rod as per IS 613/1984 with ISI mark. The pump suitable for installation in sump with 1.1KV grade 3 core suitable copper flat submersible cable to a length of 15m with necessary cable joints. The non-return valve located at the top o f the pump in the discharge outlet connection is to be designed with minimum friction. The pump should be directly coupled to 2880 RPM, three phase, 50 Hz (±5), 415V+6% & 415V-15% squirrel cage induction motor suitable for DOL upto 5 HP, Fully Automatic Air break Star Delta up to 20 HP and Auto Transformer starter for above 20 HP starting and for continuous operation. (600 LPM and 75 m Head - 15 HP)

RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834

Supply and delivery of MS Kiosk of size 0.75m x 0.45m x 0.75m made up of MS angle of size 50mm x 50mmx 4mm alround covered with 16 gauge MS sheet and kiosk door made up of MS plates of size 25 mm x 3 mm including cutting, welding, grinding,locking arrangements and labour charges etc.

Supplying and clamping of 4 core 6sq.mm. PVC LTUG cable by MS clamps on wall

Sub Total (excluding GST)

N SRIPATHY (BID ID -1108797)