Construction of 01 No. SBDTW 150 mm by contractors own Mini Rig of submersible pump motor, pipe line at Shyam Para BOP under 121 BN BSF within the DWS Division, Sabroom during 2025-26 (Deposit Work).

Drilling and boring pilot hole in any soil strata by mini drilling rig, 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 bentonite, water etc. as required to maintain the pilot hole properly as per specification ( IS : 2800 (part-I)) and direction of the Engineer - in - charge. A) With Contractor's Mini Rig i)150mm dia.

Reaming of pilot hole to an enlarged bore hole in any soil strata by mini drilling rig, disposal of excess soil or mud, including the cost for bentonite, water etc. as required to maintain the bore hole properly as per specification ( IS : 2800 (part-I)) and direction of the Engineer - in - charge. A) With Contractor's Mini Rig i) From 150 mm dia. pilot hole to 350 mm bore hole

Washing of enlarged bore hole of 350 - 550 mm dia. in any soil strata by mini drilling rig, disposal of excess soil or mud, including the cost for bentonite, water etc. as required to maintain the bore hole properly, including lifting of drill pipes as per specification ( IS : 2800 (part-I)) and direction of the Engineer - in - charge. A) With Contractor's Mini Rig

Providing & Lowering of UPVC pipe as per IS:12818 after washing of the bore hole by the mini drilling rig as per specificastion & direction of the Engineer-in-Charge. With Contractor's Mini Rig

A. UPVC 'CM' casing pipes i) 150 mm dia.

B. UPVC 'RS' pipe i) 150 mm dia.

Providing and fixing of UPVC end cap suitable for UPVC 'CM'casing or 'CS' casing or 'RS' pipes as per specification and direction of the Engineer - in - charge. i) 150 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) and direction of the Engineer - in - charge. A) With Pea-Gravel obtain from Durgapur, West Bengal.

Providing and fixing of housing clamp ( made with 12 mm thick MS sheet ) by welding with blind pipe including applying of anticorrusive bitumastic paint as per specification ( IS : 2800 (part-I) and direction of the Engineer - in - charge. i) 150 mm dia.

Washing and development of tube well by using Air Compressor and testing of the well as per specification (IS:11189) and direction of the Engineer-in-Charge. I.upto 200 mtr pipe assembly A)with Contractor's own Air Compressor i) using air compressor of 300 -450 CFM output for SBDTW

Providing and lowering of submersible pump of 65.00mtr. Head with suitable single plase submersible motor in/c additional 32.00mtr. Submersible 3 core copper flat cable (2.5mm 2 size) alongwith 40mm GI flange (maximum length of each column assembly) in/c fitting fixing of necessary rubber insertion 90 degree GI single end flanged short pice, GI tail piece and 100mm x 40mm GI reducing socket, 100mm dia CI non-return valve etc. complete in respect as direction of the Engg-in-charge.a)For 1500/2,000 GPH capacity submersible with 2/3HP submersible motor.

Suppling and fitting fixing of M.S(18SWG) "KIOSK" (size;-width450mm X length1200mm x height 850mm)fitted with 4 Nos .support of 75mm X 75mm(6mm thick)M.S angle for embedding in 1:2:4 cement concerete bass(size 300mmX 300 X 600mm) with proper locking arrangement and coated with anti-corrisive base( size 300 mm x 300 mm x 600mm) with proper locking arrangement and coated with anti-corresive paint(both inside and outside) including necessary provisions for fitting fixing of single phase motor starter unit,main switch,energy meter etc, complete in all respect as per direction of the Engg. In-charge.

Supplying and fitting fixing of single-phase motor starter unit(with 2 pole contactor, overload relay, Volt meter & Amp. Meter), 32 Amps main switch(220 volt) o f Havels/ BCH/L&T make in KIOSK including necessary electrical wiring and GI pipe earthing etc. complete as per direction of the Engg. in-charge.(2 Hp/3Hp Motor)

Trial run and comissioning of the scheme in all respect as per direction of the Engg. In-charge.

Providing and fitting fixing with PVC insulated 3 core flat Copper cable conforming to relevant IS code for submerssible motor with all necessary equipments and fittings as required as per specification and direction of the Engineer-in-charge. i) 2.50 sqmm

Providing and fitting fixing of Moulded Case Circuit Breaker (MCCB) of different Thermal release range , 415 + V, 50Hz (L & T, BCH, ABB make) as per specification and direction of the Engineer-in-charge. i) 25-32 Amps

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - All work upto plinth level: i) 1:2:4 ( 1 Cement: 2 fine sand : 4 graded well burnt brick aggregate 20 mm nominal size)

Centering shuttering in/c strutting propping etc. and removal of form work for: Suspended floors, roofs, landings, balcones and access platform with timber planks.

Excavating trenches of required width for pipes, cables etc. including exacavation for sockets, dressing of sides where required, ramming of bottoms, depth upto 1500 mm including getting out the excavated soil and backfilling of soil as required after laying of pipeline, in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. and disposing of surplus excavated soil with all required leads as per Chapter - 2 of CPWD specification and direction of the Engineer-in-charge. A. For UPVC pipes in new work i) For pipes not exceeding 90 mm dia.

Providing and fitting fixing of brass fullway valve with handle in the GI pipe line including cutting, threading etc. complete as per CPWD specification and direction of the Engineer - in- charge. i) 40 mm dia.

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

Providing and fixing G.I. union as per CPWD specification and direction of the Engineer - in - charge. i) 40 mm dia

Providing and fixing G.I. pipes of Heavy class as per IS : 1239 with latest amendment complete with G.I. fittings including trenching and refilling, cutting and making good the walls etc. complete as per CPWD specification and direction of the Engineer-in-charge. A. External work. ii) 40 mm dia. nominal bore

Providing and fixing G.I. socket as per CPWD specification and direction of the Engineer - in - charge. i. 40 mm dia.