Construction of 10,000 Litres Mini OHT and Bore well at Ward No-4 in Thuraiyur Municipality

First depth 0.00 - 2m

Second depth 2.00 m - Below

Supplying and filling in foundation and basement with Crushed Stone Sand (M- Sand) in layers of not more than 15cm thick well rammed watered and compacted etc., complete complying with standard specification.

Plain Cement Concrete 1:4:8 (one part of cement, four part of Crushed Stone Sand (M- Sand) and eight part of coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification

For footing sides

For column upto G.L. Brace Beam Bottom

For G.L. Brace Beam Inner Side

For column, G.L. brace beam top to Middle brace beam bottom - (0.00 to 3.30)

Middle brace beam inside (3.30 - 3.55)

Square Column (3.55 - 4.30)

Square Column (4.30 - 5.30)

Square Column (5.30 - 6.30)

Square Column (6.30 - 6.85)

Grid (Floor) beam Top to Grid beam bottom (6.85-7.20)

Floor Slab Bottom (7.20 - 7.20)

Floor Slab side (0.00 - 0.15) Chainage Height (7.20-7.35)

Curv. Surface haunch (slanding) (7.35 - 7.50)

Curv. Surface Tank Side wall inner (8.30-9.30)

Curv. Surface Tank Side wall inner (9.30-9.80)

Cover Slab Bottom (9.80 - 9.80)

Tank cover slab side wall (curved)

Supplying, fabricating and placing in position of HSD steel rods for Reinforcement including the cost of steel and binding wire etc., complete.

FOOTING

For column upto G.L. Brace Beam Bottom

For Ground Level Brace Beam

For column, G.L. brace beam top to Middle brace beam bottom - (0.00 to 3.30)

For Middlel Brace Beam (3.30-3.55)

Square Column (3.55 - 4.50)

Square Column (4.50 - 6.85)

Grid (Floor) Beam (6.85 - 7.20)

Floor Slab (7.20- 7.35)

Water Tank Side Wall (7.35-9.00)

RCC Rate (9.00-9.80)

Refilling the foundation with excavated earth including watering and consolidation etc., complete.

Providing PVC ventilating arrangements mosquito proof nylon net with 110 mm PVC pipes and cowl etc., complete.,

Providing manhole cover of size 0.60 m X 0.60 m in RCC 1: 1.5:3 with suitable reinforcement and 5O x 5O x 6mm MS angle fixed along edges etc., complete., SOR-2025-26 M-0640

Providing and fixing of RCC inner access ladder in RCC 1:1.5:3 (one cement, one and half sane! and three aggregates) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centering shuttering charges, mixing concrete curing etc., to required height and clear width of 4Scm consisting of two Nos. of ve~ical post of 10cm x lScm and step slab of 25mm x 25mm etc., complete.

Supply and Delivery and fixing of outside MS Ladder of 45cm clear wide made out of 50 mm x 50mm x 6mm MS angle for sides and steps in 16 mm MS plain rods fixed at 30cm C/C welded jointed etc ., providing with suitable side supports, clamps and locking arrangements provided with two coats of approved enamel paint over one coat of redoxide paint , for providing access to roof top of OHT of suitable inclined length , including bottom anchorage and transportation and as directed by TWAD Board officers. The rate includes concrete bed block in CC 1:2:4 using 20mm HBGS at top and bottom of suitable size with necessry anchor bolts.TWAD-2025-26 WD-M1472

Providing Cost at Quary for cut stone slabs of size 60cmx60cm and not less than 10cm thick TWAD-2025-26 HR-M0015

Exterior Emulsion Paint two coats with approved exterior emulsion paint over one coat of priming coat over cement plastered exposed surface of the Reservoir including cleaning, preparing the surface and curing etc., complete.

65mm dia GI pipes for inlet connection TWAD-25-26 P.No-30

65mm dia GI pipes for over flow and RWH TWAD-25-26 P.No-30

65mm dia GI pipes for delivery pipe TWAD-25-26 P.No-30

50mm dia GI pipes for scour pipe. TWAD-25-26 P.No-30

90mm dia PVC Threaded coupler

63mm dia PVC Threaded coupler

65mm dia GI Tee

65mm dia 90 Deg. Bend

65mm dia GI Bend (Short)

65mm dia GI Coupler

65mm dia GI Union

65mm dia GI Elbow

50mm dia GI Union

50mm dia GI Elbow

65mm dia GI Tee

65 X 50mm dia GI Reducer

75 X 63mm dia PVC Reducer

65mm dia GM Gate Valve

50mm dia GM Gate Valve

63mm dia PVC Pipe

63mm dia PVC Bend

63mm dia PVC End cap

Conducting Geophysical survey, quality and quantity test and transportation charges etc, (This includes labour charges in the field, rent of the vehicle for reaching the place, rent of the instrument and excluding charges for the geologist) (TWARD Chennai TWC no-2015/AHG-3/HG/date-5/5/2023)

Drilling 6" vertical bore in hard rock area to any required depth as directed by the board officers including labour charges for inserting casing pipes assembly in the directed hole including welding the joints if necessary grounding the casing pipes etc., and including transporting from one place to another etc., complete

Supply and delivery of PVC casing pipe of the 200mm dia pipes as per IS / 12818 / 92 and as amended from time to time to suit the borewell upto 150m depth (CM) with ISI marking including, loading, unloading , freight, stacking and transit insurance charges.SOR-25-26-P.No-7

Labour Charges for inserting PVC Casing pipes assembly (with slots or without slots) in the drilled hole including jointing the pipes with PVC Couplers with Cement paste etc., complete, supply and packing the annular space with pebbles of size and quality as approved by the executive engineers of TWAD Board SOR P.No-197 2025-26

Earth work excavation for foundation in ordinary soil light black cotton sandy loam and dry silt including shoring, strutting, baling (or) pumping out wter wherever necessary and refilling the sides of foundation with excavated in layers of 15cm thick and depositing the surplus at places as directed by the dept. officers with initial lead and lift etc., complete as per standard specifications.

Refilling with excavated earth in layers of 15cm thick including watering and ramming to consolidation etc complete

Supply of UPVC Pipe 32 mm SOR P.no-7-2025-26

Supply of 50mm dia GI Pipe SOR P.no-7-2025-26

Supply of 50mm dia GI Elbow SOR P.no-7-2025-26

Supply of 50mm dia GI Flange

Supply of 63mm pvc bend

Supply of 63 mm pvc Elbow

Supply of 63 mm pvc pipe(6ksc)

Supply of 63 mm pvc Tee

Supply and fixing of TNEB meter board suitable for 32A single phase service connection with 32A fuse unit (500V) 32A neutral link and earth link (1" x 1/8" copper flat) on TW plank of size 375mm x 300mm x 19mm with supporting TW reepers of 1" thick an either side with painting with suitable bolt and nuts for fixing the TW plank on wall with earth connection and inter connection with 7/20 PVC insulated copper wire from EB meter to fuse unit with 1 No 40 Amp 30 MA Double Pole RCD / RCCB (Lower End) with suitable necessary connection..SD 126

Supply and fixing of 50mm dia GM Gate Valve with ISI make, the cost shall including materials, fixing and labour charges etc,complete as per standard specification. TWAD-25-26.P.No-37

Supply of 4 SQ.MM PVC INSULATED AND SHEATHED 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1990 TWAD-25-26.P.No-140

Supply of 3 HP THREE PHASE 100LPM x 50 M SUBMERSIBLE PUMPSET SUITABLE FOR 150MM DIA BOREWELL WITHOUT PANEL BOARD AS PER IS 8034/2002 (TWAD 25-26. P -120)

Supply of 3 HP THREE PHASE PANEL BOARD- D.O.L. WITH TWO LEVEL GUARD . PANEL BOARD SHOULD BE PROVIDED AS PER SPECIFICATION (TWAD 25-26. P -120)

Supply of TRIPLE POLE SWITCHES 32 Amps TPN Metal clad switch with rewirable fuse units (TWAD SOR-P.No-173)

Supply of 32 Amps Porcelain fuse unit (500 V) (TWAD SOR-P.No-220)

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.,TWAD 25-26. P -105

Supply and fixing 200mm dia PVC End cap as Bore cover on top for securing

Supply and run of 4 of 4 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100V grade on 7 / 20 GI bearer wire for service connection mains(SD-67)

Supply and fixing Nylon Rope (PWD 25-26. P -169)

SUPPLY AND DELIVERY OF 25 MM DIA GI PIPES

Labour charges for the erection of submersible pumpset in borewell/openwell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot(indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days. .TWAD-25-26 P.No.225

Earthing as per PWD standard with an earth electrode of 2 metre Class 'B' GI pipe of dia not less than 32mm complete with necessary masonry work SD 212

Supply & Fixing of AC /DC 76mm Buzzer suitable for 230 Volts 50 c/s single phase AC supply on suitable TW Board with push switch. SD 105

Add GST 18%

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