526/E1/2023

Amount

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)

Drilling of 12’’ dia vertical bore well so as to have a finished size of 8’’ dia bore well in boulder area to any required depth as decided by the TWAD Borad officers including Transportation form one place to another place etc., complete.

Supply and Delivery of 200 mm Dia of Plain and Slotted PVC Casing Pipe of plain and slot including all cost and conveyance with labour charges for erection etc Complete. 200mm dia Plain PVC casing pipe(CS)

200mm dia Slotted PVC casing pipe(RS)

Reaming 200 mm dia pilot bore to 350mm dia bore as directed by the TWAD Board Officer Upto 60 m depth ending below ground level

Labour charges for inserting casing pipes assembly (With slot or without slot) in the drilled hole including welding the joint etc., complete and supplying and packing the annular space with pebbles of size and quality as approved by the Executive Engineer

Drilling of Borewells anywhere in Tamilnadu including transportation from one place to another with in Tamilnadu in alluvial soil sedimentary strata of clay and sand stone shale pebbles boulders etc. By first taking a pilot bore of 140 mm/150mm dia and then enlarging to required dia direct or reverse rotary mud circulation method using rotary rigs, fuel, labour and drilling bentonite and water required for drilling at site ( Site will be shown by the TWAD Board Officers) including construction of mud pit. Drilling of 140/150 mm pilot bore Upto 60 m Depth ending below ground level

From 60 m upto 90 m Depth ending from ground level

From 90 m upto 120 m Depth ending from ground level

From 120 m upto 150 m Depth ending from ground level

Charges for developing the Borewell with air compressor of 600 CFM capacity (Minimum 8 Hours) including transportation, labour and fuel charges for compressor as directed by TWAD Officers and conducting yield test by ‘V’ notch method.

Conducting Electrical Logging Test including all charges etc., complete with as per standards

Suplying of Pipe materials for Water Supply etc., Complete As Follows etc. 90 mm HDPE hose

90 mm ss Nipple

90 mm MS Clampset

90 mm Flangeset

GI EB Box

2 HP Starter

63 A Main switch

100 Amps FuseCarrier

Bore cover

4 Sqmm core Cable

Supply and delivery of submersible motor and pumpset in the duty of 350 lpmx 100m head of isi of approved company with isi make is 8034, 7.5 HP motor including cost and conveyance and all labour charges and all other incidental chargesVAT taxes etcand minimum one year guarantee . Complete as per standard specification.

Labour charges for errection Submersible pumpset in borewel including fixing and jointing cables with proper clamps upto starter to required depth valves errection pressure gauges upto the exterior wall of pump room and errection of panel borad with

Supply and run of 4 X 6 sq.mm (84/0.3) PVC insulated SC unsheathed Cu.Conductor of 1100V grade on 7/20 Gl bearer wire for service connection mains etc, complete as per standard specifications.SD 68

Supply and fixing of TNEB Board suitable for 3 Phases 63A service connection made up of suitable angle iron frame work of size 2 feet x 1 1/2 feet using angle iron of size 1 1/2" x 1 1/2" x 1/4" rigidly fixed on wall covered with hylem sheet of size 2 feet x 1/2 feet of 6mm thickness with necessary bolts and nuts supports and supply and fixing of 3 Nos 63A fuse units(500V) 1 No. Neutral link, copper earth flat of size 1" x 1/4" with inter connection of EB meter to fuse units by 7/16 PVC insulated copper wire with earth connection complete.SD 129

Earthing as per P.W.D. standard with an earth electrode of 2Mtr. Class 'B' GI pipe of dia not less than 32mm complete with necessary masonry work. etc, complete as per standard specifications SD 234

Protection arrangement to Bore well as per Board Circular No.F.ADD/AE2 (R) Kanchi/2002 /date 3.5.2002.

Earth work excavation in all classes of soils such as hard stiff clay, stiff black cotton, hard red earth, shales, murram, ordinary earth, earth mix with 50% fair sized boulders etc., with initial lead and lifts including laying, spreading, levelling, sectioning breaking clods etc., in all incidential charges etc., complete as per standard specification for foundations SS 20A

Supplying and Fixing of PVC pipes including cost and conveyance of all labour charges and all other incidental Charges etc.complete as per Standard specifications.(TWAD.Page 26,38,43) 90mm Dia PVC Pipe 6Kg/cm2

Supplying and Fixing of PVC Specials including cost and conveyance of all labour charges and all other incidental Charges etc.complete as per Standard specifications (twad.Page 26,38,43) Saddle Piece

90 mm PVC 6 kg Tcoupler

90 mm PVC 6 kg Bend

90 mm Dummy

Lowering rigid pipes to trench and laying proper grade and alignment with PVC coupler and cement Paste and executing to required pressure including conveyance of water for filling during testing etc completed as per Standard Specification. 90mm Dia PVC Pipe 6Kg/cm2

Refilling of Excavated earth into trenchs including all labour charges etc complete

BHARATHIYAR