Annual Rate contract for Construction and Commissioning of 200 mm dia tube wells with Submersible pump sets etc. complete work in all types of strata including defect liability period of 2 years in various villages/Towns of District Bundi

Construction of tube well from ground level & up to 100 mtr depth to accommodate housing and assembly pipe of following sizes in all type of alluvium strata unconsolidated formation such as pebbles, boulders etc. by percussion/rotary drilling method as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications, with gravel as per IS:4097-1967 and it's packing as per IS: 2800 (Part I & II) 1979 as amended up to date (the work includes the cost of gravel & it's primary packing and packing during development, lowering of housing & strainer assembly pipes with supply and wrapping of coir-rope, wherever necessary for arresting fine sand particles and development work, but excluding the cost of housing and strainer pipe assembly). The work would be completed after obtaining sand free water.Nominal bore 200 mm dia. Rates are exclusive of GST.

Add 15% extra on above iteam no1 for drilling beyond 100 mtr and up to 200 mtr.Rate shall be applicable for only depth beyond 100 mtr and upto 200 mtr.

Construction of Tube Well from ground level and upto 100 mtr. depth to accommodate housing and assembly pipe in all type of alluvium strata, unconsolidated formation such as pebbles, boulders etc. by percussion/ rotary drilling method as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications for removal of overburden. The work includes the cost of lowering of casing pipe, but excludes the cost of casing pipe. Nominal bore 200 mm dia. Rates are exclusive of GST.

Add 15% extra on depth more than 100 mtr for drilling beyond 100 mtr depth .Rate shall be applicable for only extra depth beyond 100 mtr.

Construction of tube well after completion of drilling by rotary /percussion method & up to 100 mtr. depth in all type of rocks by DTH system as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended up to date) and technical specifications. The work shall be deemed completed only after obtaining sand free water. The bore well should have a throughout nominal size bore beyond casing pipe. Nominal bore 200 mm dia. Rates are exclusive of GST.

Add 15% extra on above item no 5 for drilling depth beyond 100 mtr and up to 200 mtr from ground level, rate shall be applicable for only extra depth beyond 100 mtr and up to 200 mtr.

Construction of Tube Well up to 100 mtr. depth in all type of rocks by DTH system & over burden to accommodate casing pipe of following sizes in all types of soil & over burden including lowering of casing pipe, (if required) excluding cost of casing pipe, as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications. The work would be completed after obtaining sand free water. The tube well should have a through out bore as per nominal dia of casing pipe.Nominal bore 200 mm dia. Rates are exclusive of GST.

Add 15% extra on above item no 7 for drilling depth beyond 100 mtr and up to 200 mtr from ground level.Rate shall be applicable only for extra depth beyond 100 mtr and up to 200 mtr.

Construction of tube well from ground level and upto 100 mtr. depth and above of following sizes in all types of soils in alluvium strata,unconsolidated formation such as pebbles, boulders etc. by "bailing" method and without gravel packing as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications. The work includes formation of cavity at bottom by development with appropriate air compressor or bailer pumping and also lowering of casing pipe but excluding cost of the casing pipe. The tube well should have a throughout bore as per nominal dia of casing pipe. The work would be completed after obtaining sand free water.Nominal bore 200 mm dia. Rates are exclusive of GST.

Construction of tube well from ground level and up to 100 mtr depth and above to accommodate housing assembly pipe in all type of unconsolidated formation such as pebbles, boulders, collapsible formation etc. by Odex drilling method as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications. The work will include lowering of housing and strainer pipe assembly and casing shoe incuding cost of casing shoe, but excluding cost of the casing pipe. The work would be completed after obtaining sand free water. 200 mm dia nominal bore Rates are exclusive of GST.