NIT/BM/00146/WW/EO/2025-26 09.01.2026

Supply of drinking water from the Tube well with all preventive measure to the user end within East Liluah & Liluah Zone under Bally Municipality.

Surging of tube well with chemical treatment and bucket wash (prior to use of compressor machine) and developing the tube well with compressor machine at least 3(three) days at 8(eight) hours per day till the yield is obtained at least by 75% of the total specified yield of the tube well (measured by ‘V’ notch tank) and draw down is within the permissible limit of 10% variation and water so obtained after such washing and developing will be free from sand and bacteria for which test report from the Public Analyst is to be obtained. (The rate is inclusive of all labour and materials including hire charges of tools and plants and cost of materials.) (a) For tube well from 40 mm to 100 mm top enlarged to have yield from 1500 to 3000 gallons per hour as per size and yield.- [PWD( S&P)-1.11.2017,pge-55,Itm-21]

Taking out pipes of existing tube well including strainer etc. complete for (a) Upto 20 metre below G.L. (i) 40 mm dia. [PWD( S&P)-1.11.2017, pge-56, Itm-1] [PWD( S&P)-1.11.2017, pge-56, Itm-1]

Repairing choked up tube well by cleaning and washing with chemical: (i) 40 mm to 50 mm dia. Tube well upto 100 metre deep (ii)Above 50 mm to 100 mm dia.Tube well upto 100 metre deep: [PWD( S&P)-1.11.2017, pge-57, Itm-2]

Supplying, fitting , and fixing brass cylinder parts: (i) Brass plunger complete:

(ii) Brass plunger complete without G.I. rod :

(iii) C.I. top socket :

(iv) C.I. bottom socket :

(v) 65 mm brass tube (both ends threaded) : [PWD( S&P)-1.11.2017, pge-57, Itm-3]

Supply of G.I. pipes of TATA make including necessary sockets: (ii)Medium quality : (I) 40 mm dia. (i) Light quality :

(II) 50 mm dia. (III) 80 mm dia. (i) Light quality : (ii ) Medium quality : (i) Light quality : (ii)Medium quality : (IV)100 mm dia. (i)Medium quality : (ii)Heavy quality : [PWD( S&P)-1.11.2017, pge-102, Itm-1]

Supply of G.I.socket with I.S.I mark: (i) 40 mm dia:- (ii) 50 mm dia:-

(iii) 80 mm dia:-(iv) 100 mm dia:- [PWD( S&P)-1.11.2017, pge-103, Itm-2]

Supply of G.I.plug: (i) 40 mm dia:- (ii) 50 mm dia:- (iii) 80 mm dia:- (iv) 100 mm dia:- [PWD( S&P)- 1.11.2017, pge-104, Itm-4]

Supply of G.I.reducing socket with I.S.I. mark: (i) 80 mm dia:- (ii) 100 mm dia:- [PWD( S&P)-1.11.2017, pge-104-105, Itm-5]

Supply of long screw (150 mm long) of TATA make with sockets (TATA make) and jamnut. 80 mm dia [PWD( S&P)-1.11.2017, pge-108, Itm-12( viii)]

Supply of G.I.short piece of TATA make (Above 50 mm & upto 150mm long) : (i) 40 mm dia:- (ii) 50 mm dia:-

(iii) 80 mm dia:- (iv) 100 mm dia [PWD( S&P)-1.11.2017, pge-110, Itm-15]

Cutting out pipe and making threads. i)Above 32 mm upto 50 mm dia.

ii) Above 50 mm upto 80 mm dia. [PWD( S&P)-1.11.2017, pge-26, Itm-8(iii) & (iv) ]

Renewing iron jamnut with washer i) 15mm

ii) 20mm [PWD( S&P)-1.11.2017, pge-26, Itm-7 (i) & (ii) ]

Supplying, fitting and fixing special hand pump No.6 of approved make (for 50 mm or 40 mm dia tube well) (P.W.D. (S& P)-1.11.2017, Page-54; Item No.13)

Supply of P.V.C. nipple 150 mm. long & 80 mm. dia (P.W.D. &( S & P)-1.11.2017, Page-16; Item-19(III)(F)(iii)

Supplying, fitting and fixing 15 mm dia Galvanized M.S. connecting rod with sockets [ P.W.D. P & S-1.11.2017, Page-54 Item-16]

Supplying, fitting and fixing 65 mm. dia deep well brass cylinder with necessary fittings and accessories. (P.W.D. S & P-1.11.2017, Page-54, item no.15)

Supplying,fitting and fixing check valve (horizontal) G.M. tested to 21 kg per sq. cm. i) 50 mm [P.W.D. S & P-1.11.2017, Page-53, item no.12(vi)]