Restoration of rain damages for WSS Rora in Tehsil Haroli Distt. Una(HP) (SH Drilling, lowering of assembly development of 1 Nos. 175mm dia borewell ( Mini T/well 7 dia) 120 mtrs deep near traffic park at Rora (Rampur Haroli Bridge)

Transportation of suitable truck mounted RC / DR drilling rigs along with necessary accessories etc to the site of work & erection of rig including leveling etc complete in all respects as per directions of Engineer-in-Charges.

Drilling bores of 200/250 mm dia as per IS 2800: 1979 using Purcussion Rig method required for drilling in collapsible strata conglomerate, boulders, pebbles, gravels, silt, clay, etc including cost of attachments , extractable casing,consumable stores, bits, water, POL gravel pak in annular space etc. and loging of bore well complete in all respects as per direction of the Engineer-in-Charge. 0 to 150 mtrs bgl

Collection of and preservation of soli samples in polithene bags etc.complete in all respects as per direction of the Engineer-in-Charge.

Supplying and lowering of IS marked 175 mm dia N.B 5.40 mm thick fincut MSERW casing pipes asper IS 4270-2001 and requirement of ODEX attachment from approved manufactures complete in all respect as per direction of Engineer-in-Charges.

Providing slotting arrangements as per IS 8110/1994-997slot size 1.57x75mm & Lowering of 175 mm dia MS sloted pipe as per IS 4270-2001 with upto date amendments, welded and joints in to bore hole in vertical position including cost of all cutting ,threding & welding of pipe etc. with in all leads & lifts, complete in all respects as per direction of Engineer-in-Charge.

Development of bore well with 750-CFM with with air compressor through V-notch and disinfect ion etc. as per IS-2800 :1979 including transporation of equipment etc. to the site of work complete as per direction of Engineer-in-charges.

Development / establishment of discharge of bore well and yeild testing with submersible pump Set through V-Notch as per IS 2800-1979 ncluding transporation of equipment etc. to the site of work complete in all respect bore hole drilled by RC rig.as per direction of Engineer-in Charge

Supplying and lowering and fixing in position IS marked mild steel bail plug of 175 mm dia metre with "U" hooks as per as per IS 2800-1991 with up to date ammenments if any with in all leads and lifts complete in all respect as per direction of Engineer-in-Charges.

Testing the verticality of the tubewell as per clause 4.3 of IS 2800 (Part-II) 1979 with upto date amendments, if any, using plumb or plunger 6 mm smaller in dia within the inside diameter of the well casing.The results of the verticality test shall be recorded on proforma shown in Appendix A of IS 2800 (Part-II) 1979 with up-to-date amendments, if any, as appended with the tender documents and handed over complete in all respect as the directions of the Engineer -in- Charge.

Supplying and packing of gravel, consisting of hard quartz or other suitable material with an average specific gravity or not less than 2.5 , not containing more than 2% by weight of thin flat of elongated pieces, shall be of sub rounded to rounded grains with minimum angular features of size 2-3.35 mm, shall be free from impurities such as shafe, shale, mica, feldspar, clay , sand, dirt loam, haematte and organic material as per IS: 4097-1967 with upto date amendments , if any around intake of tubewell with minimum thickness of shroud around screen generally 100mm to the entire depth of the bore as per 2800 (part-1 ) 1991 with upto date amendments , if any with in all leads and lifts complete in all respects as per direction of the Engineer-in-charge. ( For 175 mm dia bore well)