Supplying, removal and refilling the filter media of Package Type IRP of different capacity attached with existing DTW schemes under Rupaichari Block within the DWS Sub-Division, Rupaichari during 2025-26.

Removing dry or oil bound distemper, water proofing cement paint and the like by scrapping, sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete.

Painting with black anticorrosive bitumastic paint ( one or more coats ) of approved brand and manufacture on old work to give an even shade including preparation of surface as required complete as per direction of the Engineer-in-charge.

Providing structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete as required.

i) MS wire mesh

ii) ISA 50 x 50 x 6

iii) MS flat 40 x 5 mm

Finishing with Epoxy paint ( two or more coats) of approved brand and manufacture at all locations prepared and applied as per manufacturer's specification including appropriate priming coat, preparation of surface etc. complete [Payment shall be made after submission of Test Certificate issued by the Manufacturer]. i) On steel work.

Providing and placing of anthracite coal (3 mm to 6 mm) of SP gr. 1.4 in IRP as per specification & direction of the Engineer-in-charge.

Providing and fixing CIDF Butterfly valve with bolts, nuts, rubber insertions etc.complete as per CPWD specification and direction of the Engineer-in-charge. (The tail pieces, tappers etc. if required will be paid separately )

i) 100 mm dia.

ii) 150 mm dia.