| ANNEXURE "A" | |||||
| Schedule of rates for boring & installation of four nos.new deep tube wells and overhauling the existing wells | |||||
| (within 6.0 km radius from Regional Workshop, Margherita. | |||||
| Estimated depth of the well = 80 mtrs.(however the depth of boring may vary in different location as per requirement) | |||||
| Size of the well = 300mmX150mm by mud rotary | machine | ||||
| Sl.no. | Items of work | Unit | Rate | Approx.Qtty.(per bore hole) | Amount |
| per mtr.(in Rs.) | (in mtrs.) | (in Rs.) | |||
| 1 | Cost of movement of rig,accessories and other | 1(one)job. | L.S. | ||
| ancillery equipment to the site of drilling and | |||||
| removing the same after works | |||||
| 2 | (a) Cost of making test boring in normal alluvial | mtr. | 80 | ||
| formation.(300 mm) | |||||
| (b)Cost of making test boring in thick boulder and | mtr. | 60 | |||
| pebble bed.(300mm) | |||||
| 3 | (a)Cost of reaming(Enlarge)in alluviall formation | mtr. | 80 | ||
| (b) Cost of reaming(Enlarge)in thick bouldeer and | mtr. | 45 | |||
| pebble bed. | |||||
| 4 | Cost of lowering of casing pipes and shrouding of | mtr. | 80 | ||
| pea-gravel | |||||
| 5 | Cost of development of the well by air compressor | hour. | 48 | ||
| in complete (per hour basis) | |||||
| 6 | Cost of 150mm NB(MS)ERW steel tube of | mtr. | 37 | ||
| commercial quality(B-class) medium duty | |||||
| 7 | Cost of 150mm slotted strainer NB(MS)ERW | mtr. | 20 | ||
| steel tube of commercial type ( vertical slot)(B-class) | |||||
| Slot size-1.5mm to 2.00 mm | |||||
| 8 | Cost of supply of MS reducer of size 200mmx150mm | nos. | 2 | ||
| 9 | Development/washing by high pressure compressed air for (24 - 48 hrs.) each well by 100 psi | nos. | 4 | ||
| 10 | Any other cost if any(please specify) | ||||
| 11 | Supplying & fitting& installation of submersible pump of | set | LS | ||
| capacity 400gpm, 80 mtr. Head with each bore well | |||||
| complete with electricals and all accessories in complete | |||||
| 12 | Testing the complete installation for its performance in | each | |||
| all respect & hand over to the authority | |||||
| A | Total for single bore well = | ||||
| B | Tota cost for 4(four) nos. bore wells (4 X 'A') = | ||||
| C | Washing & overhauling of old existing bore well (80mtr. Depth) = | each | 4 | ||
| D | Grand Total (B+C) = | ||||
| Rupees (in words) | |||||
| Signature | |||||