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| # | Company | Amount | Rank | Status |
|---|---|---|---|---|
| 1 | L1₹1.9 CrAdmitted-Finance | ₹1.9 Cr | L1 | Admitted-Finance |
| 2 | L2₹2.1 CrAdmitted-Finance 310 3RD FLOOR CITY CENTRE SANSAR CHAND ROAD JAIPUR RAJASTHAN 302001 | JAIPUR | RAJASTHAN | 302001 | ₹2.1 Cr | L2 | Admitted-Finance |
| 3 | L3₹2.2 CrAdmitted-Finance LOBBY 2 BLOCK G FLAT NO G3G SUBHAM BUILDWELL SREE NAGAR RG BARUAH ROAD GUWAHATI KAMRUP METROPOLITAN ASSAM 781005 | GUWAHATI | KAMRUP METROPOLITAN | ASSAM | 781005 | ₹2.2 Cr | L3 | Admitted-Finance |
| Sl No | Description | Qty | Unit | BSR CORPORATION Pvt Ltd L2 | Tremend Drillco Pvt Ltd L3 | shivdrillers L1 |
|---|---|---|---|---|---|---|
| 1.00 | 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 | 275 | meter | 2,800 ₹7,70,000 Lowest | 3,000 ₹8,25,000 | 4,000 ₹11,00,000 |
| 2.00Enlargement of hole by reaming to accommodate well assembly of recommended size and gravel envelop of minimum 100 mm thickness | ||||||
| 2.10 | Using 311.15 mm ( 12-1/4”) RR Bit for 100 mm (4”) assembly pipe | 275 | meter | 1,500 ₹4,12,500 | 2,300 ₹6,32,500 | 100 ₹27,500 Lowest |
| 3.00Supply and installation of ERW casing pipe conforming to Table 3 of latest version of IS: 4270-2001 | ||||||
| 3.10 | 100 mm (4”) Nominal Bore | 220 | meter | 1,500 ₹3,30,000 | 1,650 ₹3,63,000 | 1,000 ₹2,20,000 Lowest |
| 4.00Supply and installation of LCG V- wire screen conforming to latest version of IS: 8110-2000 | ||||||
| 4.10 | 100 mm (4”) Nominal Size
Slot opening 1.0 mm | 30 | meter | 2,800 ₹84,000 | 3,850 ₹1,15,500 | 1,500 ₹45,000 Lowest |
| 5.00Supply and shrouding of pea gravel confirming to latest version of IS: 4097-1967 | ||||||
| 5.10 | Particle size range 2.00 mm to 3.35 mm for 1.0 mm and 0.75 mm slot opening | 15 | cu meter | 6,500 ₹97,500 | 5,000 ₹75,000 Lowest | 15,000 ₹2,25,000 |
| 6.00 | Development by air compressor | 25 | hours | 10,000 ₹2,50,000 | 6,000 ₹1,50,000 Lowest | 10,000 ₹2,50,000 |
Tender Value
₹1.6 Cr
EMD Value
₹3.2 L
Closing Date
13 Aug 2024, 11:00 amClosed
Chairman, CGWB
Bhujal Bhawan, CGWB, CHQ, Faridabad, Haryana-121001
Construction of Piezometers 24 Nos in Soft Rock/Hard Rock/ Bouldery Formation in the state of Assam, Meghalaya and Arunachal Pradesh
2024_CGWB_789970_2
NIET No. 24/2022-23/MMS-I
Open Tender
Drilling Works
Works
345 days
Faridabad
as per tender Document
6 documents required · 6 mandatory
₹5,000
Yes
DDO, CGWB, Faridabad
₹3.2 L
Yes
Bhujal Bhawan, CGWB, CHQ, Faridabad
1 Oct 2024
4 Jul 2024
14 Aug 2024
4 Jul 2024
13 Aug 2024
4 Jul 2024
4 Jul 2024 - 16 Jul 2024
16 Jul 2024
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 0.70 X 0.70 X 0.60 m (0.30 m above ground level) using concrete mix of 1:2:4 around the 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 for 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 submitted.
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 submitted.
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 submitted.
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.
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 submitted.
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 submitted.
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 submitted.
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 submitted.
Description of Work / Item(s)
Amount
Drilling of over burden using rock roller/ drag bit/Buton bit to accommodate casing pipe of 175 mm (7") dia up to bed rock including formation sample collection at every 3m and change in formation , preparation and submission of litholog along with video recordings
Drilling by DTH method using appropriate sizes of button bits so as to reach targeted depth with diameter of hole not less than 165 mm up to the targeted depth including sample collection and prepartion of litholog
Supply and installation of ERW casing pipe conforming to Table 3 of latest version of IS: 4270-2001
175 mm (7”) Nominal Bore
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
Supply and filling up borehole/ annular space between casing pipe and bore hole wall with local clay, if required
Developement by suitable air compressor till water become sand/slit free ( minimum 3 hours) and collection of 2 water samples in teflone coated/HDPE Bottle per site) and submission of data in prescribed porforma and analysis report
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 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 submitted.
Description of Work / Item(s)
Amount
Drilling of over burden using rock roller/ drag bit/Buton bit to accommodate casing pipe of 175 mm (7") dia up to bed rock including formation sample collection at every 3m and change in formation , preparation and submission of litholog along with video recordings
Drilling by DTH method using appropriate sizes of button bits so as to reach targeted depth with diameter of hole not less than 165 mm up to the targeted depth including sample collection and prepartion of litholog
Supply and installation of ERW casing pipe conforming to Table 3 of latest version of IS: 4270-2001
175 mm (7”) Nominal Bore
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 1.5 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
Supply and filling up borehole/ annular space between casing pipe and bore hole wall with local clay, if required
Developement by suitale air compressor till water become sand/slit free ( minimum 3 hours) and collection of 2 water samples in teflone coated/HDPE Bottle per site) and submission of data in prescribed porforma and analysis report
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 around the Piezometer well welded with minimum 6 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 submitted.
Description of Work / Item(s)
Amount
Drilling of over burden using rock roller/ drag bit/Buton bit to accommodate casing pipe of 175 mm (7") dia up to bed rock including formation sample collection at every 3m and change in formation , preparation and submission of litholog along with video recordings
Drilling by DTH method using appropriate sizes of button bits so as to reach targeted depth with diameter of hole not less than 165 mm up to the targeted depth including sample collection and prepartion of litholog
Supply and installation of ERW casing pipe conforming to Table 3 of latest version of IS: 4270-2001
175 mm (7”) Nominal Bore
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 1.5 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
Supply and filling up borehole/ annular space between casing pipe and bore hole wall with local clay, if required
Developement by suitale air compressor till water become sand/slit free ( minimum 3 hours) and collection of 2 water samples in teflone coated/HDPE Bottle per site) and submission of data in prescribed porforma and analysis report
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 Piezometer well welded with minimum 6 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 submitted.
BSR CORPORATION Pvt Ltd
Tremend Drillco Pvt Ltd
shivdrillers
Tremend Drillco Pvt Ltd
BSR CORPORATION Pvt Ltd
Tremend Drillco Pvt Ltd
BSR CORPORATION Pvt Ltd
Tremend Drillco Pvt Ltd
shivdrillers
Tremend Drillco Pvt Ltd
BSR CORPORATION Pvt Ltd
Tremend Drillco Pvt Ltd
shivdrillers
Tremend Drillco Pvt Ltd
Tremend Drillco Pvt Ltd
shivdrillers
Tremend Drillco Pvt Ltd
BSR CORPORATION Pvt Ltd
Tremend Drillco Pvt Ltd
BSR CORPORATION Pvt Ltd
Tremend Drillco Pvt Ltd
BSR CORPORATION Pvt Ltd
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tech_bid_open.pdf
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