Construction of 30000 Lit OHT 12m staging cum Borewell with Submersible Pumpset accessories at Anna nagar in Orathur Panchayat

Earthwork excavation and depositing on bank with an initial lead of 10m and lift of 2m in the following classification of soils as directed by Deparment officers. Hard stiff clay, block cotton, hard red earth shales, murram, ordinary gravel, stoney earth First depth of 2m

2 nd Depth

M.Sand filling for foundation with clear river sand including cost of sand watering, ramming and consolidation etc complete as directed by Department officers.

Cement concrete 1:4:8 (one cement four sand and eight aggregates) using 40mm HBGS for levelling course for foundation including the cost of mixing concrete, ramming, curing etc., complete as directed by Department officers.

RCC in M30 GRADE using graded aggregtes of HBGs excluding cost of reinforcement, centering, shuttering strutting, but including cost of mixing concrete, placing, vibrating with mechanical vibrator, finishing, curing etc., complete as directed by DepartmentFor footing below G.L. ( 1,50 to 4,50 below GL )

For Column and Brace upto G.L ( 0 to1,50 below GL )

For column and brace I 0 to 4.5m from GL

For column and brace II 4.5m to 7.32m from GL

For column and brace III 7.32 to 10.98m from GL

For column beam floor slab side wall from 10.98m to 14.64 m from GL

For side wall, hance and Roof slab from 14.64 m to 18.30 m from GL

Supplying and erecting steel centering for sides and soffits I including necessary supports' and shuttering to the required height for RCC items using MS sheets of suitable size of BG.10 stiffeneq with welded MS angles of size 25mm x 25mm x3mm of boarding PLANE SURFACES Below GL For column footing and GL Brace

GL 0 to 3.30 M For Brace I

5.3. to 6.30 m For Brace II

6.3. to 7.30 m For Brace II

8.3. to 9.30 m For Brace III

9.3. to 10.30 m For Brace III

3.30 TO 4.30 m Roof slab

11.30 to 12.30m For Floor Beam and Bottm of Floor slab

SQUARE COLUMN For column Below GL

For column GL 0 to 3.30M

For column ( 3.31m to 4.30m ).

For column ( 4.31m to 5.30m).

For Column (5.31m to 6.30m )

For Column (6.31m to 7.30m )

For Column (7.31m to 8.30m )

For Column (8.31m to 9.30m )

For Column (9.31m to 10.30m )

For Column (10.31m to 11.30m )

For Column (11.31m to 11.40m )

CURVED SURFACEFor Side Wall, & Floor slab sides and Haunch

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

Painting two coats with approved cement paint over one coat of priming coat over cement plastered exposed surface of the Reservoir including cleaning, preparing the surface and curing etc., complete and as directed by Deparment officers

Providing MS Ladder & Hand rails arrangements in 60,000 Lits. Capacity OHT With 12.00m Staging Height.

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 cur

Providing manhole cover of size 1x1 0.75 X 0.75 M in RCC 1: 1.5:3 with suitable reinforcement and 5O x 5O x 6mm MS angle fixed along edges and as directed by Department officers.

Providing GI ventilating arrangements mosquito proof nylon net with 50 mm GI pipes and cowl and as directed by Deparment officers

Painting Department emblem 1 x 1 on the SR with enamel paint as per Board's specification and as directed by Deparment officers

Supply & Delivery of following Pipes and specials for OHT connection Supply of GI Pipes for OHT Connections 65 mm dia

Supply and Delivery of G.M.Gate valve 65mm size

Supply & Delivery of 65 mm G.I Tee

Supply & Delivery of 65 mm G.I Coupling

Supply & Delivery of 65 mm G.I bend

Supply & Delivery of 90mm T.Coupler PVC

Supply & Delivery of 80mm x 65mm G.I.Reducer

Supply & Delivery of 65mm G.I.flange set

Labour charges for fixing of G.I. Pipes & Specials for OHT pipe connections as directed by the Deparment Officers,

Refilling of the foundation with execavated soil in layers of thick including ramming watering etc., complete as directed by the Department officers

Geophysical Survey charges

Drilling of bore well in alluvial soil sedimentary strata of clay and sand stone, shale, pebbles, boulders etc., by first taking a pilot bore of 140mm/ 150mm/ 200mm dia and then enlarging to required dia by direct or or reverse rotary mud circulation method, using contractor’s rig, fuel, labour, drilling, at the site shown by the Departmental Officers including construction of mud pit and transportation (Water available within a lead of 1.5Km) using Rotary Rig. a) Drilling of 140/150/200mm.Pilot bore.Upto 60m depth ending below G.L

From 60m and upto 90m depth ending from G.L

Reaming from 140/150mm dia pilot bore to 300 mm dia Bore as directed by Departmental officers.Upto 60m depth ending below G.L.Upto 60m depth ending below G.L

From 60m and upto 90m depth ending from G.L

Reaming from 300 mm dia pilot bore to 400 mm dia depth ending below G.L upto 60 m

From 60m and upto 90m depth ending from G.L

Electrical Logging charges for bore well

200mm dia OD PVC Plain Pipe CS

200mm dia OD PVC Plain Pipe CM

200mm OD PVC slotted casing pipe

200 mm dia Bottom Dummy

Borewell Top Cover

Labour charges for inserting PVC casing pipes (With slots or without slots) in the drilled hole including jointing the pipes, supplying and packing the annular saace with pebbles of size and quality as approved by the department officers.200 mm dia Bottom Dummy

Charges for developing the bore well with aire compressor of 450cfm/600cfm capacity ( minimum 8 hours ) including transportation labour and fuel charges for compressor as directed by the Department Officers as directed by the Departmental Officers and conducting yield test by “V” Notch methods.

Provision for Borewell Protection Arrangements

Three phase Submersible Pumpset 7.50 HP with duty of 100 LPM X 125 m Head

3 Phase 10 HP Panel Board with Star Delta and Two level Guard

4.00 Sq.mm Submersible Cable

63mm HDPE HOSE

50 mm dia SS Nipple

50 mm dia MS Clamp Set

50 mm dia GI Flange Set

50 mm dia Flange Leather

100 A Fuse Unit

Earthing set with GI Pipe,GI wire,Bolt and Nuts

Wooden Board 90 cm X 60 Cm

Labour charges for Erection of Submersible Pumpset including cable Jointing fixing of Starter, Fuse Unit and all Other accessories etc.,completed Above 5 to 10 HP

Provision for Name Board

GST Amount for providing Service to Government Contract Works for the above Construction Works. { GST Amount is the Total GST Amount for total overall quoted amount above this row in column "BB" for all works in this package}