Nerkuppai Town Panchayat 15th finance Tied IInd Installmet 2025-2026 Thozhankalam bore

Drilling of borewell anywhere in Tamilnadu including transportation from one place to another place within Tamilnadu in alluvial soil or sedimentary strata of clay and sand or sand, stone, shale, pebbles, boulders etc., by first taking a pilot bore of 140 mm/150mm dia and then enlarging to required dia by direct or reverse rotatry mud and circulation method using Contractor’s rig, fuel, labour, drilling, betonite mud and water required for drilling at the site shown by the TWAD Officers including construction of mud pit (only Calyx drills are to be used).

Supply and delivery of 150mm blue plain PVC casing pipe (165mm dia OD -CS) as per standard specification(Cost including Excise duty

Supply and delivery of 200 mm blue plain PVC casing pipe (215mm dia OD -CS) as per standard specification(Cost including Excise duty

Labour charges for inserting PVC casing with or without slots into drilled hole including welding the joints etc complete and supplying and packing the annular spaces with pebbles of size and quality as approved by departmental officers for 150mm dia casing and stacking for premeasurement etc.

Charges for developing the borewell with air compressor of 600 cfm capacity (Minimum 8 hours) including transportation and fuel charges for compressor as directed by the departmental officers and conducting yield test by 'V' notch method etc complete

Drilling of 150 mm bore well in Hard rock formation using rig including transportation and fuel charges of Rig to site and all labour charges etc complete

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, leveling, sectioning breaking clods etc., in all incidental charges etc., complete as per standard specification.

Cement Concrete of mix 1 : 4 : 8 (One Cement four sandEight aggregates) using 40mm gauge hard broken including cost conveyance of all materials to site including formwork and centering labour charges, transporting and placing in position including shoring, strutting, forming protective bunds, cofferdams bailing out of water labour for mixing compacting, finishing and curing, working at depths, tools and plants and incidental charges such as sheeting, shoring and bracing and their subsequent removal etc., complete as per standard specification.

Brickwork in cement mortor 1 : 5 (One Cement and five Sand) using best quality of country bricks of size 83/4x41/4x21/4 including all cost of materials and Labour Charges including Curing charges etc., Complete as per standard specification.

Reinforced Cement Concrete 1:1½:3 Mix (One Part of cement, one and half Part of M- Sand and three Part of aggregate)using 20mm size ISS HBG metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing but excluding cost of reinforcement etc. Complete with std. Specifications. TNDSS NO: 30 V, VI (S3), VII-3.