Drilling Construction Of Piezometers and DWLR installation FMDA

Amount

Drilling of pilot hole for Piezometer using bentonite fluid by rock roller/drag bit of 300 mm dia including formation sample collection at every 3m, preparation and submission of litholog. (Drilling Depth can be varied from 60 m to 130 m as per the recommendation received by Site-incharge) - Alluvium Formation

Drilling of overburden by Rockroller/ drag/ button bit to accommodate ERW casing pipe of 150 mm nominal size dia, including sample collection, praparation and submission of litholog, measurement of discharge through V-notch at various stages (Depths) of drilling, collection of water sample of each fracturezone encounteres adopting standard procedure in 1 ltr good quality Standard HDPE bottle. - Hard Rock Formation

Drilling by DTH Method using appropriate size of button bit so as to reach targetted depth with diameter of hole not less than 135 mm at 100 m depth and final hole diameter not less than 125 mm at hole bottom including sample collection and preparation of lithology.

Digital Electrical logging using 406 mm and 1626 mm (16" and 64") SP, resistivity probe and Natural gamma logging, submission of log graph & report including zone wise water quality, logging graph, composite log etc.

Caliper logging

Supply and installation of 100 mm Nominal dia "U-PVC" Blank Pipe conforming to Table5 of latest version of IS: 12818:2010.

Supply and installation of 100 mm Nominal Dia U-PVC" Screen Pipe conforming to Table 1 of latest version of IS: 12818:2010 (slot opening 0.75 mm to 1 mm - Screen Size as per site condition)

Supply and installation of ERW MS casing pipe of 150 mm nominal size dia, thickness 5 mm conforming to Table 3 of latest version of IS: 4270-2001 of diameter and thickness

Supply and shrouding of pea gravel of Particle size range 2.00 mm to 3.35 mm for 1.0 mm screen opening confirming to latest version of IS: 4097-1967.

Development by Air Compressor of adequate capacity for minimum 4 hours, over pumping and by other means till discharge water is clear and free of sand including collection of two water samples from PZ well adopting standard procedure in 1 litre HDPE bottle

Chemical analysis of water samples for 15 parameters Ph, EC, TH, TDS, Ca, Mg, Na, K, CO3, HCO3, SO4, NO3, Cl, F, & Fe, in NABL accredited labs and submission of report from NABL lab

Construction of cement concrete platform 0.70 x 0.70 x 0.60 m (0.30 m above ground level) using concrete mix of 1:2:4 around the housing pipe welded minimum 6 nos. anchoring plate as per drawing

Supply and installation of protection box made of GI sheet of 3.15mm thickness along with Brass lock (7 lever hardened) and three keys for each lock as per drawing & Well Cap as per drawing. MS Plate size 5 to 10mm with welding on outer surface of casing pipe 0.5mtrs.

Supply and installation of display board as per specification in drawing

Preparation and submission of basic data report in triplicate along with logging graphs, data sheets, analysis sheet, logging graphs, chemical analysis report from NABL lab, photographs/ videos of activity drilling assembly, part assembly lowering, pumping test, pumping test, V- notch discharge at various depths of drilling well site with display board well cap, protection box activity for each EW site, etc. The soft copy should be submitted.

Paramjit Machine Tools Industries (BID ID -825559)

NALANDA ENGICON PRIVATE LIMITED (BID ID -824856)