Installation of Small Bore Mini Deep Tube Well at New Agri Engg Division Ambassa under Dhalai District

Construction of Barak Bamboo Scaffolding for drilling & lowering of the tube well in/c cutting a tank 2.00 m x 2.00m x 0.90 m size in drilling & cutting the two tank with 0.30m width & 0.15m deep drain.

Drilling and boring pilot hole in any soil strata by manual means, collection of soil samples of different strata met with during drilling at various suitable levels, preservation of samples in polythene bags / sample boxes and disposal of excess soil or mud, including the cost for water etc. as required to maintain the pilot hole properly as per specification and direction of the Engineer - in - charge. 100 mm dia

Reaming of pilot hole to an enlarged bore hole in any soil strata by manual means, disposal of excess soil or mud, including the cost for water etc. as required to maintain the bore hole properly as per specification and direction of the Engineer - in - charge. from 100 mm dia pilot hole to 250 mm bore hole

Providing & lowering of UPVC pipe as per IS:12818 after washing of the bore hole by manual means as per specification & direction of the Engg.-in –charge. A. “CS” Casing pipe :- I) 100mm dia NB

125 mm dia

B. “RS” strainer pipe :- 100 mm dia bore.

Washing and development of tube well by using hand pump or by any suitable method and testing of the well as per specification and direction of the Engineer - in - charge.

Providing and fixing of UPVC end cap / well cap suitable for UPVC 'CM' casing or 'CS' casing or 'RS' pipes as per specification and direction of the Engineer - in - charge.

Providing and fixing of UPVC reducer suitable for UPVC ‘CM’ casing or ‘CS’ casing or ‘RS’ pipes as per specification and direction of the Engineer – in – charge.

Providing and fixing of housing clamp ( made with 12 mm thick MS sheet ) along with well cap (made with 10 mm thick MS sheet ) with necessary arrangements for SBDTW as per specification and direction of the Engineer – in – charge. 125 mm dia

Providing and shrouding of the deep tube well assembly with washed pea gravels ( 2.0 - 4.75 mm effective size ) as per specification ( IS : 4097) using deep drilling rig and direction of the Engineer - in - charge. with pea gravels obtained from Golaghat, Assam.

Providing and lowing of Submersible pump having capacity 2000 GPH 40 mtr head with Suitable single phase 2 HP submersible motor (water filled) suitable for 150 mm x 100 00 bore well as per direction of Engineer In-charge. (CRI/KSB/WORTHINGTON/TAXM)/ LUBI/KIRLOSKAR).

Supplying and fitting fixing of single phase motor starter unit ( with 2 pole connector, overload relay, volts meter and amps meter) 32 amp main switch (220 V) of Havels/BCH/L&T make including necessary electric wiring and GI pipe earthing etc complete as per direction of the Engineer In-charge foor 3 HP submersible Motor.

Providing and fitting fixing lowering, positioning and resting 40 mm dia G.I. column pipe (medium class) conforming to IS : 1239 both end threaded ( maximum length of each GI pipe is 3.00 mtr and 30.00 mtr long column assembly) including fitting fixing of necessary rubber insertion, 90 degree GI single end flange bend, GI flange short piece, GI tail piece and 40 mm diaetc complete in all respect as per direction of Engineer In-charge.

Providing and fixing G.I. Bend /elbow in the pipe line including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge. 40 mm dia