Providing WSS to Govt Arts and Science College for women at Alangulam in Tenkasi Dist

Earthwork excavation and depositing on bank with initial lead of 10m and lift of 2m in narrow trenches for laying of following sizes of pipes for water supply Standard trench width of in hard stiff clay, stiff black cotton, hard red earth, shales, murrams gravel, stoney earth and earth mixed with small sized boulders and hard gravelly soil etc., complete and as directed by TWAD Board officers.

63 mm HDPE PN- 6 Pipes

Refilling with excavated soil (other than sand)complying with standard specification inlayers of 15cm watered well rammed and consolidated after the pipes and specials arelaid,jointed and tested etc. and removing and depositing the surplus earth at the places as directed by TWAD Board Officers

63 mm HDPE PN- 6 Pipes

Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers

63 mm HDPE PN- 6 Pipes

Laying the following sizes of GI Pipes and specials to proper line and level including joining but excluding cost of pipes and joining materials in the trench and laying to proper grade and alingnment etc., complete and as directed by TWAD Bd. officers.

50 mm GI pipe ( Medium) As per IS 1239/Part I

Jointing HDPE Pipes and Specials by butt fusion welding/ electro fusion welding joints using fusion equipment as per ISO 21307- 2011 and as per IS 7634 (Part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board officers.