AS PER BOQ

Deep drilling of bore hole 125 mm dia. as per the strata encountered as per IS specifications by using ODEX method and lowering of Mark-II Hand pump along with additional riser pipes / connecting rods. Also Construction of Cement Concrete Platform as per sit conditions. The Job includes extraction of MS casing pipe if any required during the drilling work.

Providing of 125 mm dia. M.S.Casing Pipe. The 125mm dia. M.S. Casing Pipe ISI marked should have thickness of 5.4mm conforming to as per IS 4270 / 2001 medium class (Part-I) 2004 (Heavy C – Class, weight per mtrs = 18.11 kg) electric resistance welded beveled ended inside beed free pipes. All pipes from inside and outside to be provided with two coats of anti-corrosive paint of superior/approved quality. There should be no circumferential weld. The pipe from inside should be beed free having smooth finish. Each pipe shall have subjected to hydraulic pressure test at the manufacturer works in accordance with IS 4270/2001 with latest amendments. All the physical and chemical properties of pipe including tensile strength should be in accordance with IS 4270/2001 with latest amendments. The cost includes transportation charges up to the site and 3rd Party Inspection at the manufacturer end.

Cost of Mark-II Hand Pump Extra Deep Mark-II Hand Pump should be ISI Marked Extra Deep Well Hand Pumps, complete set conforming to IS: 15500: Part 2: 2004 (with latest revisions) consisting of 16 Nos. connecting rods electro galvanized (12mm dia. 3 M long) and 16 nos., 3 M long 32mm dia. G.I. Pipes (B-Class) one end fitted with G.I. Socket made of seamless pipe or solid bar and other end with threaded protector as riser pipes along with Cylinder Assemblies.

Providing of Riser Pipe 32 mm extra. Additional length of Riser Pipe of 03 M each which shall be hot dip galvanized screwed and socketed pipe confirming to IS: 1239 (Part 1) medium class. Pipe ends shall have smooth finish and shall be free of burrs or sharp machining chip. Internal surface of pipes shall not have any lump of zinc. One end of pipe shall be fitted with hot dipped galvanized socket and other end with thread protector.

Providing of connecting rod extra Additional length of connecting rods of 12mm dia. x 3 M long with hex coupler made of bright bar, electro- galvanized conforming to relevant IS Code.

Installation of Plaque (Metal Fabricated) of suitable size carrying the inscription 'Members of the Legislative Assembly Constituency Development Scheme Work' indicating the cost involved, the commencement, completion and inauguration date and the name of MLA sponsoring the project which should be erected near the hand pump.