Construction of 135 nos exploratory and 31 nos observation wells in Madhya Pradesh state

Amount

Drilling of pilot hole not more than 216 mm (8 1/2'') size of rock roller/ drag/ button bit including sample collection at every 3m interval, preparation and submission of litholog,measurement of discharge through V-notch at various stages of drilling, collection of water sample in 1 litre good quality HDPE bottle

Electrical logging using 406 mm and 1626 mm (16" and 64") SP resistivity probe and Natural gamma logging. Submission of report including zone wise water quality and preparation of composite log and tentative well Assembly

Reaming of pilot hole not less than 375 mm (14 3/4'') size of suitable bit to accommodate 200 mm (8") well Assembly.

Supply and installation of ERW casing pipe conforming to Table 3 of latest version of IS: 4270-2001 of diameter and thickness given below

EW_200 mm (8”) dia Nominal Bore, thickness 5.4mm

Supply and installation of MS slotted pipes conforming to sizes as per Table 1 with slotting arrangement shown in Figure 2 of latest version of IS: 8110-2000 of dimensions given below"

EW_200 mm (8") dia Nominal Size, thickness 5.4mm with slot opening size 1.0 mm

Supply and shrouding of pea gravel confirming to latest version of IS: 4097-1967 of size given below

EW_Particle size range 3.35 mm to 4.75 mm for 1.5 mm slot opening

Cement sealing at the depth range 0 to 3m and at the contact of alluvium and hard rock (for 3m) to avoid air losses while drilling the hard rock through DTH drilling and other means of well development. After cement sealing, well should be rest for setting of cement

Cement sealing at the depth range 3m (from 0-100m) at anywhere as per the isntruction of CGWB site hydrogeologist) if water salinity issue is identified. After cement sealing, well should be rest for setting of cement.

Development by Air Compressor of adequate capacity, over pumping and by other means till discharge water is clear and free of sand including collection of two water samples from well adopting standard procedure in 1 litre HDPE bottle, along with video recordings of compressor hour meter, discharge etc.

Drilling by DTH method below soft rock formation using appropriate sizes of button bits so as to reach targetted depth with diameter of hole not less than 175 mm upto 150 m depth and final diameter not less than 165 mm at hole bottom including measurement of discharge through V-notch at various stages (depth) of drilling, collection of water sample for each aquifer formation/fracture zone encountered adopting standard procedure ,formation sample collection at every 3 meter intervals , preparation and submission of litholog, drill time log ,discharge measurement etc.

Pumping Test incudes prepumping for 8 hours and recuperation for 24 hours , SDT (3 steps), APT for 1000 minutes and 90% or full recovery) and collection of 4Nos water sample adopting standard procedure for basic parameter and heavy metals in 1 litre good quality HDPE bottle.

Preliminary yield test by lowering submersible pump of appropriate capacity upto the bottom of the well including collection of 3 nos of water samples for basic analysis and 1 sample for heavy metal analysis including arsenic and uranium for 100 min duration.

Caliper logging, submission of logging graph, report along with video recordings

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

Chemical analysis of water samples for Heavy metals _Co, Pb, Ni, Zn,Mn,Cu, Arsenic and Uranium in NABL accredited labs

Construction of cement concrete platform of dimension 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 withminimum 6 Nos of anchoring plate as per drawing

Supply and fitting of well cap as per drawing.A MS Plate size 5 to 10mm embossed & welded with permanent marking of “ CGWB EW” for Exploratory Wells & "CGWB OW" for Observation wells should carved with welding on outer surface of casing pipe

Supply and installation of Display board as per drawing

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

Description of Work / Item(s)

Amount

Drilling of hole to accomodaite 6" well assembly not less than 300 mm(12") by suitable type of bit in soft rock formation including formation sample collection at every 3m interval and preparation of litholog and drill time log

Supply and installation of ERW casing pipe conforming to Table 3 of latest version of IS: 4270-2001 of diameter and thickness given below

OW_150mm (6”) dia Nominal Bore, thickness 5.4mm

Supply and installation of MS slotted pipes conforming to sizes as per Table 1 with slotting arrangement shown in Figure 2 of latest version of IS: 8110-2000 of dimensions given below"

OW_150 mm (6") dia Nominal Size, thickness 5.4 mm with slot opening size 1.0 mm

Supply and shrouding of pea gravel confirming to latest version of IS: 4097-1967 of size given below

OW_Particle size range 3.35 mm to 4.75 mm for 1.0 mm slot opening

Cement sealing at the depth range 0 to 3m and at the contact of alluvium and hard rock (for 3m) to avoid air losses while drilling the hard rock through DTH drilling and other means of well development. After cement sealing, well should be rest for setting of cement

Cement sealing at the depth range 3m (from 0-100m) at anywhere as per the isntruction of CGWB site hydrogeologist) if water salinity issue is identified. After cement sealing, well should be rest for setting of cement

Drilling by DTH method below soft rock formation using appropriate sizes of button bits so as to reach targetted depth with diameter of hole not less than 150 mm at hole bottom including measurement of discharge through V-notch at various stages (depth) of drilling, collection of water sample for each aquifer formation/fracture zone encountered adopting standard procedure ,litho sample collection at every 3 meter intervals , preparation and submission of litholog, discharge measurement etc.

Development by Air Compressor of adequate capacity, over pumping and by other means till discharge water is clear and free of sand including collection of two water samples from well adopting standard procedure in 1 litre HDPE bottle, along with video recordings of compressor hour meter, discharge etc.

Caliper logging, submission of logging graph, report along with video recordings

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

chemical analysis of water samples for Heavy metals _Co, Pb, Ni, Zn,Mn,Cu, Arsenic and Uranium in NABL accredited labs

Construction of cement concrete platform of dimension 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 withminimum 6 Nos of anchoring plate as per drawing

Supply and fitting of well cap as per drawing.A MS Plate size 5 to 10mm embossed & welded with permanent marking of "CGWB OW" for Observation wells should carved with welding on outer surface of casing pipe ,

Description of Work / Item(s)

Amount

Drilling of overburden by suitable size of rock roller/ drag/ button bit to accommodate casing pipe of 250 mm (10") including sample collection at every 3m interval, preparation and submission of litholog,measurement of discharge through V-notch at various stages of drilling, collection of water sample in 1 litre good quality HDPE bottle

Supply and installation of 250mm(10'') ERW casing pipe conforming to latest version of IS: 4270-2001 and with thickness 5.4mm

Drilling by DTH method using appropriate sizes of button bits so as to reach targetted depth with diameter of hole not less than 165mm at the bottom of hole including measurement of discharge through V-notch at various stages (depth) of drilling, collection of water sample for each aquifer formation/fracture zone encountered adopting standard procedure ,formation sample collection at every 3 meter intervals , preparation and submission of litholog, discharge measurement etc.

Reaming using rock roller/ drag/ button bit for wells using the bit size not less than 238 mm(9-1/2'') in wells encountering collapsable formation at itermittant depth to accommodate part assembly of 175 mm(7'' diameter) in a well. The part assembly 175mm dia pipe should be lowered using reverse socket through drill string.

Supply and installation of ERW casing pipe 175mm(7") dia and thickness 5.4mm for part assembly conforming to Table 3 of latest version of IS: 4270-2001. The part assembly pipe should be lowered by using reverse socket through drill string. Video of lowering part assembly should also to be submittted.

supply and installation of LCG V-wire screen conforming to latest verision of IS: 8110 -2000 OF 175 mm (7”) Nominal Size, thickness 5.4mm with slot opening size 1.0 mm

Caliper logging, submission of logging graph, report along with video recordings

Development by Air Compressor of adequate capacity for minimum 1 hours, over pumping and by other means till discharge water is clear and free of sand including collection of two water samples from well adopting standard procedure in 1 litre HDPE bottle, along with video recordings of compressor hour meter, discharge etc.

Pumping Test incudes prepumping for 8 hours and recuperation for 24 hours , SDT (4 steps), APT for 1000 minutes and 90% or full recovery) and collection of 4Nos water sample adopting standard procedure for basic parameter and heavy metals in 1 litre good quality HDPE bottle.

Preliminary yield test by lowering submersible pump of appropriate capacity upto the bottom of the wellincluding collection of 1 nos of water samples for basic analysis and 1 sample for heavy metal analysis including arsenic and uranium for 100 min duration.

Slug Test

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

chemical analysis of water samples for Heavy metals _Co, Pb, Ni, Zn,Mn,Cu, Arsenic and Uranium in NABL accredited labs

Construction of cement concrete platform of dimension 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 withminimum 6 Nos of anchoring plate as per drawing

Supply and fitting of well cap as per drawing with Allen Keys. MS Plate size 5 mm embossed & welded with permanent marking of “ CGWB EW” for Exploratory Wells & "CGWB OW" for Observation wells should carved with welding on outer surface of casing pipe 0.5mtrs

Supply and installation of Display board as per drawing

Preparation and submission of basic data report per site (includes EW and OW) in triplicate along with logging graphs, data sheets, analysis sheet,logging graphs ,chemical analysis report from NABL lab, photographs/ video of activity drilling , assembly lowering, part assmbly lowering, pump lowering, pumping tests, discharge during pumping test, V- notch discharge at various depth of drilling, pumping test with well discharge, compressor development, water sample collection, well site with display board well cap, protection box tec.. The soft copy should be submitted.

Description of Work / Item(s)

Amount

Drilling of overburden by suitable size of rock roller/ drag/ button bit to accommodate casing pipe of 200 mm (8") including sample collection at every 3m interval, preparation and submission of litholog,measurement of discharge through V-notch at various stages of drilling, collection of water sample in 1 litre good quality HDPE bottle

Supply and installation of ERW casing pipe,200mm(8'') dia and having thickness 5.4mm conforming to Table 3 of latest version of IS: 4270-2001

Drilling by DTH method using appropriate sizes of button bits so as to reach targetted depth with diameter of hole not less than 112 mm (4 1/2") at hole bottom including drilling by appropriate size to accommodate part assembly of 125 mm (5") upto desired depth on the basis of EW including measurement of discharge through V-notch at various stages (depth) of drilling, collection of water sample for each aquifer formation/fracture zone encountered adopting standard procedure ,formation sample collection at every 3 meter intervals , preparation and submission of litholog, discharge measurement etc.

Supply and installation of ERW casing pipe, 125mm(5'') dia and thickness 5.4mm(for part assembly conforming to Table 3 of latest version of IS: 4270-2001. The part assembly pipe should be lowered by using reverse socket through drill string. Video of lowering part assembly should also to be submittted.

Supply and installation of MS slotted pipes, 125mm(5'') dia and thickness 5.4mm conforming to sizes as per Table 1 with slotting arrangement shown in Figure 2 of latest version of IS: 8110-2000

Caliper logging, submission of logging graph, report along with video recordings

Development by Air Compressor of adequate capacity for minimum 1 hours, over pumping and by other means till discharge water is clear and free of sand including collection of two water samples from well adopting standard procedure in 1 litre HDPE bottle, along with video recordings of compressor hour meter, discharge etc.

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

chemical analysis of water samples for Heavy metals _Co, Pb, Ni, Zn,Mn,Cu, Arsenic and Uranium in NABL accredited labs

Construction of cement concrete platform of dimension 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 withminimum 6 Nos of anchoring plate as per drawing

Supply and fitting of well cap as per drawing with Allen Keys. MS Plate size 5 mm embossed & welded with permanent marking of “ CGWB EW” for Exploratory Wells & "CGWB OW" for Observation wells should carved with welding on outer surface of casing pipe 0.5mtrs

Description of Work / Item(s)

Amount

Drilling of overburden by suitable size of rock roller/ drag/ button bit to accommodate casing pipe of 200mm (8") including sample collection at every 3m interval, preparation and submission of litholog,measurement of discharge through V-notch at various stages of drilling, collection of water sample in 1 litre good quality HDPE bottle

Supply and installation of 200mm(8'') ERW casing pipe conforming to latest version of IS: 4270-2001 and with thickness 5.4mm

Drilling by DTH method using appropriate sizes of button bits so as to reach targetted depth with diameter of hole not less than 165 mm at hole bottom including measurement of discharge through V-notch at various stages (depth) of drilling, collection of water sample for each aquifer formation/fracture zone encountered adopting standard procedure ,formation sample collection at every 3 meter intervals , preparation and submission of litholog, discharge measurement etc.

Caliper logging, submission of logging graph, report along with video recordings

Development by Air Compressor of adequate capacity for minimum 1 hours, over pumping and by other means till discharge water is clear and free of sand including collection of two water samples from well adopting standard procedure in 1 litre HDPE bottle, along with video recordings of compressor hour meter, discharge etc.

Pumping Test incudes prepumping for 8 hours and recuperation for 24 hours , SDT (4 steps), APT for 1000 minutes and 90% or full recovery) and collection of 5Nos water sample adopting standard procedure for basic parameter and heavy metals in 1 litre good quality HDPE bottle.

Preliminary yield test by lowering submersible pump of appropriate capacity upto the bottom of the wellincluding collection of 3 nos of water samples for basic analysis and 1 sample for heavy metal analysis including arsenic and uranium for 100 min duration.

Slug Test

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

chemical analysis of water samples for Heavy metals _Co, Pb, Ni, Zn,Mn,Cu, Arsenic and Uranium in NABL accredited labs

Construction of cement concrete platform of dimension 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 withminimum 6 Nos of anchoring plate as per drawing

Supply and fitting of well cap as per drawing with Allen Keys. MS Plate size 5 mm embossed & welded with permanent marking of “ CGWB EW” for Exploratory Wells & "CGWB OW" for Observation wells should carved with welding on outer surface of casing pipe 0.5mtrs

Supply and installation of Display board as per drawing

Preparation and submission of basic data report per site (includes EW and OW) in triplicate along with logging graphs, data sheets, analysis sheet,logging graphs ,chemical analysis report from NABL lab, photographs/ video of activity drilling , assembly lowering, part assmbly lowering, pump lowering, pumping tests, discharge during pumping test, V- notch discharge at various depth of drilling, pumping test with well discharge, compressor development, water sample collection, well site with display board well cap, protection box tec.. The soft copy should be submitted.

Description of Work / Item(s)

Amount

Drilling of overburden by suitable size of rock roller/ drag/ button bit to accommodate casing pipe of 150mm (6") including sample collection at every 3m interval, preparation and submission of litholog,measurement of discharge through V-notch at various stages of drilling, collection of water sample in 1 litre good quality HDPE bottle

Supply and installation of 150 mm(6'') ERW casing pipe conforming to latest version of IS: 4270-2001 and with thickness 5.4mm

Drilling by DTH method using appropriate sizes of button bits so as to reach targetted depth with diameter of hole not less than 150 mm (6 ") at hole bottom including measurement of discharge through V-notch at various stages (depth) of drilling, collection of water sample for each aquifer formation/fracture zone encountered adopting standard procedure ,formation sample collection at every 3 meter intervals , preparation and submission of litholog, discharge measurement etc.

Caliper logging, submission of logging graph, report along with video recordings

Development by Air Compressor of adequate capacity for minimum 1 hours, over pumping and by other means till discharge water is clear and free of sand including collection of two water samples from well adopting standard procedure in 1 litre HDPE bottle, along with video recordings of compressor hour meter, discharge etc.

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

chemical analysis of water samples for Heavy metals _Co, Pb, Ni, Zn,Mn,Cu, Arsenic and Uranium in NABL accredited labs

Construction of cement concrete platform of dimension 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 withminimum 6 Nos of anchoring plate as per drawing

Supply and fitting of well cap as per drawing with Allen Keys. MS Plate size 5 mm embossed & welded with permanent marking of “ CGWB EW” for Exploratory Wells & "CGWB OW" for Observation wells should carved with welding on outer surface of casing pipe 0.5mtrs

Description of Work / Item(s)

Amount

Drilling of pilot hole not larger than 216 mm (8 ½”) by rock roller/ drag bit using bentonite mud fluid including sample collection and preparation of litholog

Enlargement of hole by reaming to accommodate well assembly of recommended size and gravel envelop of minimum 100 mm thickness

Using 311.15 mm ( 12-1/4”) RR Bit for 100 mm (4”) assembly pipe

Supply and installation of ERW casing pipe conforming to Table 3 of latest version of IS: 4270-2001

100 mm (4”) Nominal Bore

Supply and installation of LCG V- wire screen conforming to latest version of IS: 8110-2000

100 mm (4”) Nominal Size Slot opening 1.0 mm

Supply and shrouding of pea gravel confirming to latest version of IS: 4097-1967

Particle size range 2.00 mm to 3.35 mm for 1.0 mm and 0.75 mm slot opening

Development by air compressor

Construction of cement concrete platform of dimension 0.70x0.70x0.60m (0.30m above ground level) using concrete mix of 1:2:4 around the Piezometer well welded with minimum 5 Nos of anchoring plate as per drawing.

Supply and installation of protection box made of 3mm GI Sheet of size 550mm x450mmx530mm along with bruss lock (7 lever hardened ) and 3 keys 4 each lock as per drawing. CGWB PZ should be carved with welding on outer surface of casing pipe. Salient features of the wells to be legibilly painted/printed on the protection box

Preparation and submission of basic data report per site in triplicate along with data sheets, analysis sheet, chemical analysis report. Ground Water sample will be collected by the Vendor from each site for which sample bottles/acids will be supplied by CGWB, NER. After sample collection, sample bottles need to be submitted to the CGWB, NER, Chemical Lab for analysis. Chemical findings will be shared with the Vendor by CGWB, NER for due incorporation in the BDR. Site location map and approachability with landmarks, photograohs and video and activities of drilling assembly lowering, gravel measurement and gravel packing, well development using compressor and well water discharge, well site with display board, well cap, protection box for each site etc. The soft copy as well as hard copy should be submitted. Summery of Piezometer details in xls format (as per proforma given by CGWB) including detatails of dia and depth of assembly pipes, screen pipe, static water level, gravel packing depth and thickness, Litholog etc. should be also be submitted.

R K DRILLING SERVICES

shivdrillers

BSR CORPORATION Pvt Ltd

shivdrillers

R K DRILLING SERVICES

shivdrillers

BSR CORPORATION Pvt Ltd

shivdrillers

BSR CORPORATION Pvt Ltd

R K DRILLING SERVICES

BSR CORPORATION Pvt Ltd

R K DRILLING SERVICES

BSR CORPORATION Pvt Ltd

shivdrillers