provision of borewell and allied items in new aru area at dihar leh - supply and fixing forcost for ms reducer, bail plug, well cap, msetc strip for centring, ms iron clamps, electric logging and simple strata box all as specified and directed 2 trial bore of 225 mm dia upto 100 mtrdepth below ground levelinany kind ofsoil strata including hard stone / boulderincluding electric logging, ms cap, ms flatiron clamps, reducing socket etcall as specified and directed note :- if sufficient waterlevel is not found, then new trial bore will be done. 3 material and labour for drilling of bore well by using of dth rig with odex attachment of drilling as per site requirement of 225 mm dia upto 100 meter depth below ground level in any kind of soil strata including hard stone / boulder including logging, ms clamp, ms flat iron clamps , etc and also including of all equipment tools and plants shall be provided for completion ofjob at his own cost for a depth of 0 to 60 m including sub soil complete all as specified and directed. 4 all as per serial item no. 3.00 above but for the depth above 60 rm and up to the depth of 100 meter. 5 development and testing fortube well with compressed air and after with 25% extra capacity pump bypumping muddy water for find out the safe yield including all necessary arrangements for testing and developing, including lowering and removing of 100 mm dia drop line and 32 mm dia air line for development of each water bearing zone come across upto the full depth of deep bore well of size 225 mm dia for complete period of development of bore, air compressor 600 cfm / 150 psi running for 06 hrs or till sand free discharge obtained which ever is later etc all as specified and directed. 6 yeild test for bore well by continousely pumping for 16 hrs for each borewell to determine safe pumping yield all as specified and directed 7 bacteriological test of water all as specified inis 10500 : 2012 ( updated ) complete from state / centre approved lab. all as specified and directed 8 supply lowering and jointing 200 mm dia upvccasing pipes 6-7 mm thick conforming to is-12818-2010 class 3 / 6 kgf / cm² including jointing , with necessary fittings and fixtures of pipe all as specified and directed 9 all as per serial item no. 7.00 above but slotted pipe of approved pattern 10 supply and fixing for upvc submersible column pipe10kg / cm2 standard duty of length 3 meter each, square threaded at both male & female ends and with separate integral female threaded coupler, pipe being of nominal size 2and wall thickness at end being 3.0 mm to 4.0 mm , all as specified and directed 11 supply and fixing forcast iron reflux valve ( non return valves ) 50 mmdia and fixing up in water supply mains all as specified and directed 12 supply and lay pipe galvanized, “medium class”, including fittings 50 mm ( 2” ) dia. 13 supply and fixing for foot valveflanged ends swing type operation with rubber seat conforming to is 4038, 50 mm ( 2” ) dia all as specified and directed 14 supply and fix strainer y type conforming tois, size 50 mm ( 2” ) dia. 15 supply and fixing of cast iron air release valves with singleair outlets, conforming to is 14845of size50 mm dia bore and fixing up in water supply mains of size 50 mm dia with required length of pvc pipes, clamps etc complete all as specified and directed 16 supply, install, commissioning and testing, of solar submersible 7.5 hp pump alongwith ip54 controller with grid changeover switch and rms, head range 90 to 250 mtr , min discharge 65000-70000 lpd, pump speed 3000-4000 rpm minimum , motor efficiency not less than 90%-92% , controlling with inbuilt rms including solar panel, controller and mounting structure, earthing kit with chemical, lightening arrester, wire, hdpe pipe and other allied accessories complete conforming to technical specifications para 21 of serial page no 92 of ca. 17 supply and fixing for of pressure gauge 0 to 10 kg / cm2 range with necessary siphon and 15 mm dia stop valve including 15 mm dia gi pipe, not exceeding 0.25 mtr in length, 15 mm brass bib cock on rising main including drilling tapping on gi / ci pipe line complete all as specified and directed 18 supply and fixing for including lowering of ms bar of size 16mm dia & 3m length or of suitable size / length as directed with hook arrangement , nuts & bolts and washers etc for holding upvc column pipes / gi pipes of subemrsible pumpset all as specified and directed 19 material and labour for borewell chart on acrylic sheet of size 60cmx30cm duly marked permanent marking including 12mm thick plywood frame, clamps for fixing on wall etc all as specified and directed. 20 material and labour for selected black crush metal of 10 to 20 mm mix size, as per is:383- 1970 for packing in the annular space of casing pipe of 250 mm dia complete all as specified and directed.