WBMAD/NIQ-08/SE(S)/2024-25

Amount

Supplying & laying of HDPE (PE100), D.I. (K-7) and MS pipes with all kinds of Specials and valves including supplying of specials with earth work in excavation in trenches, shoring (if necessary) of adequate width having minimum depth to keep the top surface of pipe 1.10 m below of the existing ground level in any kind of soil mixed with boulder, metal crust, concrete pavement, any road sub-grade and its flank etc., dewatering the trenches, preparing the bottom surface of the trenches for continuous bedding including sand filling (if necessary) Over-Ground installation to cross small ditches etc. supported with RCC pillars and fitting, fixing, jointing (all types of joints) valves, specials etc. as per requirement, in position, cutting, chamfering of pipes as required, constructing sluice valve chambers including supply and fitting in position sluice valve of different dia. & supply and fitting in position Specials ,Thrust Blocks as per requirement, filling of the trenches with excavated materials, consolidating the same in layers, guarding trenches with temporary bamboo railing for safety where necessary, emergency horizontal auger boring (for roads other than NH and Railway) where necessary, removing the surplus materials from the site as per municipal rules in vogue including all labour charges, tools and plants, hydraulic pressure testing, complete in all respect as per IS 12288¬1987 (latest edition) and temporary Roads Restoration work should be made for vehicular movement as per instruction of the E.I.C. N.B: i) Any deviation from required clear cover of 1.10mtr., due to site adverse condition, prior permission is to be obtained from the EIC in exceptional situation and payment will be made on pro rata basis over the rate of entire item (ii) No payment will be made without hydraulic test of the pipe line either part or full

110 mm dia HDPE Pipe

100 mm dia DI (K-7) Pipe

100 mm dia MS Pipe

Cleaning thoroughly the inner surface of pipe line including specials and valves by flushing with water and subsequently disinfection of the samepipe line by flushing again with water containing bleaching powder resulting in residual chlorine not less than 15mg/ltrs. after 24hrs. of such filling including laboratory testing of water samples obtain from the disinfected pipe line and disposal of water from the pipe line after completion of the work. The rates including of cost of requisite water to be arranged by the contractor. (The rate of water @Rs. 10/m3 may be recovered, if the contractor used water from deptt. source).

110 mm dia HDPE Pipe

100 mm dia DI (K-7) Pipe

100 mm dia MS Pipe

Supplying fitting fixing of Sluice valves/Air Release Valves and including construction of Sluice Valve Chamber as per specification and drawing.

Sluice Valve 110 mm dia with valve chamber

Sluice Valve 100 mm dia with valve chamber

Submission of complete detailed drawing of distribution system, rising main etc. after execution of work showing position of different types of valves, fittings/specials sluice valve chamber with location, node to node wise in the sanctioned drawing as completion drawing of the water supply scheme as per direction and satisfaction of EIC. (5 copies)

GUPTA ENTERPRISE (BID ID -5328001)

AMAL DUTTA ROY (BID ID -5328104)

S P CONSTRUCTION (BID ID -5328182)