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| 1 | Earth work excavation above water level in light or sandy of clay soil for Infiltration well of 4.50 m dia (Internal) including leveling the site and as directed by the departmental officers open well excavation for infiltration well for first depth of 1.00 m |
| 2 | Brick work in cm 1:5 (One Cement and Five Sand) using country bricks os size 22 x 11 x 5 cm for steining of 55 cm thick for infiltration well including curing etc., complete and as directed by the Departmental Officers. |
| 3 | Supplying and erecting centering for sides and soffits including supports and strutting uptp 3.29m height for plane surfaces in all floors with all cross bracings using mild steel sheets of size 90cmx60cm and 10 gauge stiffened, welded with mild steel angles of size 25mmx25x3mm for boarding laid over silver oak (country wood) joist of size 10cmx6.5cm dia spaced about 90cm centre to centre and supported by casuarina props of 10cm to 13cm dia spaced at 75cm centre tocentre etc.complete complying with standard specification and as directed by the departmental engineers. TNBP No.30 For Plane Surface |
| 4 | Plastering in CM 1:4 (One Cement and Four Sand) 20 mm thick including Curing etc., complete and as directed by the Departmental Officers |
| 5 | Supply, delivery and fixing in position 50 mm thick RCC manhole cover slab of size 0.60 x 0.60 m with necessary and MS angle of size 50 mm x 50 mm x 6 mm thick fixed alround the edges of the slab complete and as directed by the Departmental Officers. |
| 6 | Supply, delivery and fixing of CI steps in position at 30 cm center to center in zig zag manner and as directed by the Departmental Officers. |
| 7 | Providing ventilating arrangement by fixing in position 160 mm OD PVC 6 Ksc pipe with PVC cowl and as directed by the Departmental Officers. |
| 8 | Providing for cutting edge using 10G MS sheets including the cos of fabrication welding and placing in position in the curb including supply of the MS sheet |
| 9 | Plugging the Bottom of the well with coarse sand of approved sizes and grade as directed by the Departmental Officers |
| 10 | Supply and delivery ofHDPE PN 8 180mmpipes including all cost and conveyance and other charges.. Etc 180mm diaHDPE PN8 |
| 11 | 80mm dia GI pipe |
| 12 | MS Clamp set |
| 13 | Lowering ofHDPE PN 8 and specials in the trench and laying to proper grade and alignment and as directed by the TWAD officers |
| 14 | Labour charges for Putting bore holes of size of 3\" to 4\" in river bed in sandy and other loose soil using hand boring sets including the cost of hire charges , conveyance charges of hand boring sets including all labour charges.. Etc |
| 15 | Lowering of GI Pipes and specials in the trench and laying to proper grade and alignment and as directed by the TWAD officers |
| 16 | Plain Cement Concrete 1:2:4 Mix (one part cement, two part sand and four part of aggrigate) using 20mm size ISS HBG metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing etc., complete as per TNDSS NO: 28 & VI (S2) VI (S5A) VII standard specifications as directed by Engineer incharge. |
| 17 | Supply and Delivery 2000 lpm x 40m head ( 30 HP) Submersible Motor including all cost and conveyance charges.. Etc |
| 18 | Supply and Delivery of PVC insulated and sheated 16sqmm 3 core flat type copper cableconfirming to IS 694 /1990 and as amended therefter including all charges.. Etc |
| 19 | Supply and delivery of Star-Delta starter where panel boards are available confirming to IS 13947, IEC60947-1 and as amended thereafter with suitable KW rating for operation in AC/three e/50HZ(+/- 5%) and 415V (+/- 10%) including 3 pole magnetic contactor with under voltage release - 3 nos., CT operated Ammeter(65 mm dia) with suppressed scale, Voltmeter (65mm dia), Voltmeter selector swicth, Minature circuitr braeker, Thermal Overload relay, Air Break contactors suitable for next Standard higher KW rating, Single phasing preventor, dry running preventor and On/Off Push button switches, wiring with 1 sq.mm/4 sq. mm copper pvc insulated cable, powder coated vermin proof box, including the capacitor (the cost of capacitor is to be taken separately). |
