Installation of 5 Points STW Scheme (54 M boring depth) under Patharkandi LAC under SOPD-G for the year 2025-26.

Amount

Movement of drilling Rig , Tools & Plants, Accessories including drill pipes, casing pipes etc. to drilling site and back.

Boring of DTW of bore hole up to 450 mm dia and up to required depth by RC/DR Drilling Rig including supply and transportation of all required Tools & Plants, materials & Labour to site to perform the job in complete as directed in alluvium areas (means areas where the strata comprises of loose, unconsolidated materials like clays, silts, sands gravels, pebbles, cobbles and boulders) as per IS: 2800 (part-I) of 1991. ( Soil sample must be collected & keep properly at every 3.00 M interval of depth in boring).

Supply, lowering & installation in tube well 150 mm PVC housing pipe / blind pipe of wall thickness of 6.5 mm to 8.5 mm for casing assembly including supply of well cap, sockets, reducer, MS housing clamps etc. as required as per IS : 12818-2010 of length 3.00 M of repute brand like Supreme / Oriplast / Jindal / Prince etc. and as directed. (Litholog Assembly diagram must be approved by Engineer - in - charge of the work prior to installation)

Supply, lowering & installation in tube well 150 mm PVC Ribbed Screen Filter pipe of wall thickness of 6.5 mm to 8.5 mm for casing assembly including supply of sockets, reducer etc. as required as per IS : 12818-2010 of length 3.00 M/2.00 M of repute brand like Supreme / Oriplast / Jindal / Prince etc. and as directed. (Litholog Assembly diagram must be approved by Engineer - in - charge of the work prior to installation)

Shrouding the DTW assembly by river pea gravel of size 4 mm to 8 mm free from sand / dust and any other foreign materials after screening / stacking at site including supply, transportation, labour etc. complete as directed. As per Annexure I

Developing the tube well assembly by Air-Compressor of capacity 8 – 12 kg/cm2 and CFM = 450 M3/Min so as to get sand free discharge of water with supply of all required materials at site complete as directed including furnishing of litho log / draw down data, etc. as per IS:11185 of 2020. The following data should be reflected in the report of development : 1. Static water level 2. available average discharge 3. Drawdown at different discharge (arrangement of Pump for trial pumping is in the scope of the work).

(a) Solar Submersible Standalone Pump set with 3 HP AC Induction motor and Solar Power Controller Unit ( Conform IEC 6168311:1999) with overload, over-under voltage, short circuit protection, suitable for 150 mm bore well and discharge capacity approx 400 LPM at 10 M head (Dynamic Head Range 10-30 Mtr and Shut off head 35 M) working at 3000 Wattp of solar power along with Cables, Inverter external box, surge suppressor, DC MCB & all necessary accessories like, 2(two) pairs of Assembly support clamps, 10(ten) nos. of Cable clamp / clip, 1 (one) no. of Delivery bend, 20(twenty) mtr. column pipe, 1(one) no. of Short pipe of 1.5 Mtr. length of required diameter, 40(forty) mtr.(approx.) Flat flexible cable (motor to controller) as per latest MNRE norms and as per IS.(b) Supply, fitting-fixing and testing & commissioning of Solar PV modules conforming to IEC 61215 specification or equivalent National or International standards consisting of solar panels framed in anodized aluminium frame of 3000 Wp (approx.) considering 7.15 kWh/ M2/ Day of solar insolation under standard test condition on horizontal surface with tolerance (+/-) 15% and hot dipped galvanized(minm 80 micron thickness) mounting mild steel structure of rectangular hollow sections, angles, heavy duty pipes of dia 150 mm (all materials duly IS marked ) for providing sufficient strength with dual axis manual tracking arrangement which can withstand load of modules and high wind velocities upto 150 Km/hr including RCC foundation designed against all possible loads (Dead, Live and imposed load), Controller conform to IEC 61683–1999 & IEC 60068-1-2, IEC 60068 – 2- (2, 14, 30, 78) ( The series and parallel combination of Solar Modules to be done in such a way that Jalverter/ Controller input voltage requirement is met i.e. System Vmp > 587 V & System Voc < 800 V) and necessary connection cables, pipes to the water trough and other accessories, etc. complete in all respect as directed (Controller to be installed with suitable arrangement on the body of the pole of mounting structure with rain proof provision. SPV panel should be of reputed make like TATA/Bikram/ Waaree etc. and carry at least 20 years warrenty & comprehensive maintenance for 1 year and should installed preferably above HFL)(c) Earthing with 50 mm dia GI pipe 3.64 mm thick x 3.04 Mts. long and 1 x 4 SWG GI (Hot Dip) wire (4 Mts. long), 13 mm dia x 80 mm long GI bolts, double nuts, double washers incl. S & F 15 mm dia GI pipe protection (1 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level driven to an average depth of 3.65 Mts. Below the ground level as below: (a) By ISI-Medium GI pipe including excavation of soil for installation of Earth Electrode and filling & ramming and connecting to individual structure to earth electrode including S&F 20 mm x 3 mm galvanized (Hot Dip) MS flat on wall/floor with GI saddles as required and connection to equipments incl. drilling holes, with bolts, nuts, washers etc.(d) Lightning protection (Arrestor)(pole mounted)(: Lightning protection with 3" X 1.5" G.I pipe of 4 mts height with base flange in proper RCC foundation and S & F Lightning Conductor Air Terminal made of 20 mm dia 1000 mm long GI pipe (ISI Medium) having five discharge prongs of 4 SWG GI (Hot Dip) wire at top duly soldered with 7/16 stranded GI (Hot Dip) wire and 85 mm dia 6 mm thick GI base plate at bottom incl. necessary holes etc including supply & fixing GI (Hot Dip) strips 20 mm x 3 mm thick for horizontal run on the /Roof with GI Saddles 1100 mm apart.

Supply of sign board made of 1.60mm thick MS iron sheet fitted with steel frame of size 1.05 m x 0.75m fixed with 2 Nos. 50mm dia GI (medium) pipes 2.10m above and 0.60m below ground fitted with C.C. work in proportion 1:3:6 and size 0.45m x 0.45m x 0.60m below ground including painting with approved paint including writing letters complete as directed.

.Procurement and supply of approved quality Canvas Pipe of 63.5 mm dia designed to withstand 8 kg/cm2 Working Pressure and 20 kg/cm2 Bursting Pressure for water distribution system including all necessary accessories for fitting, sealing joints etc. as directed..

TAPAS BANIK (BID ID -287817)