tcmc - providing deep borewell at ward no.09,14,16 and 17 zone-2 at tcmc= charges for conducting geophysical survey etc direction by the departmental officers 2 drilling of 150mm dia bore wells in over burden soil including labour charges for insertion of casing pipes 3 supply of 150 mm (casing shollow depth) 1.2 pvc casing pipe with exces duty as per is 12818/1992 (twad rate 2021-22 page no19) 4 drilling of 150mm dia borewells in hard rock areas anywhere in tamil nadu including trasportion to the worksite in hard rock areas and developing the borewells 5 labour charges for inserting casing pipes assembly (withslot or without slot) in the drilled hole including welding the joint etc., complete and supplying and packing the annular space with pebbles of size and quality as approved by the executive engineer (twad rate 2021-22 page no227) 6 supply and delivery 15 x 125 of clear water vertical wet type submersible pump conforming to is 8034/2002 and as amended thereafter and bee 3 star rated capable of discharging noted lpm against head of water column due to all causes. the pump shall be with stainless steel shaft and dynamically balanced bronze or cast ss impeller, brass screws and ci fg 200 grade pump bowl/diffuser with isi mark. the pump shall be directly coupled to a continues rated two pole suitable wet type vertical squirrel cage induction motor suitable for operation in ac single phase 230 v+/- 10 %,50 hz +/-5 % 7 supply and delivery of 2 hp capacity of single phase submersible pump set panel board with two level gourd with auto start duty 20lpmx125 mt head, including cost and conveyance of material etc., complete as standard specification as per twad schedule of rate2015-16 page no.112 8 supply and fixing of following pvc, gi and electrical accessories including all necessary materials and labour charges etc complete 9 hdpe pipe 50mm/ 38mm 10 32mm ss nipple 11 32mm gi x nipple 12 32mm gi bend 13 32mm ms clamp 14 32mm pvc pipe 15 20mm pvc pipe 16 32x20mm pvc reduser 17 20mm gi pipe 18 20mm gi tee 19 pvc tap 20 2000 ltr. capcity hdpe water tank 21 16mm nylon rope 22 32amps mcb 23 32 amps fuse unit 24 2 of 4 sqmm wire sd 45 25 2.5 sqmm flat cable 26 labour charges for erection of submersible pumpet in bore well/ open well including fixing submersible cable with proper clamps upto to the starter to required depth and also fixing of riser pipes to the required depth calves erection clamps , pusher gauge upto the exterior wall of pump room and erection of panel board consisting of tpic switches, voltmeter, ammeter, capacitor single preventerand laying and jointing the cable and twin earthling as per ie rules including providing bed block etc., and operating the pumps and trial run 10 days including singing of completion of reports as required by eb authorities twad board schedule item no.17c , page no.230 2015-16 27 construction of inspection chamber of size 60 cm x 60 cm x 60 cm with 75mm thick rcc loose slabs covering in c.m. 1:2:4 mix including necessary reinforcement and earth work excavation for foundation wth 23 cm thick concrete bed using 40mm b.j. concrete in cc 1:4:10 for foundation brick work in cm 1:6 for chamber as directed during theexecution including plastering with cm 1:3, 12mm thick, benching and channelly etc. complete for 1 no.