Construction of 24 MLD Water Treatment Plant (WTP) at Iroishemba

Design, Drawing, construction, Testing and Commissioning of Intake Works of 24.00 MLD, mechanical & electrical works including connecting secure walkway cum pipe carrying bridge from Intake well to river bund. Supply and installation of Vertical Turbine raw water pump sets (Worthington/Mather Platt/Kirloskar make) with motors (2 working and 2 stand by) (WTP) i/c manually operated travelling crane with girder for lifting the pumps for Iroishemba WTP including duty room, necessary access road at Lamphelpat Intake

(I) Construction of Overhead Tank: Design, Drawing, Construction, Testing and Trial Run of R.C.C. Overhead Tank (OHT) of 0.8 ML capacity on 15.00 m staging height with suitable pile foundation, including container with roof slab, staging columns and bracings, inlet/outlet/overflow and scour pipe arrangements with valves and specials, ancillary units, lightning conductor, staircase, walkways and passages with G.I. railings for inspection and maintenance, provision of manholes with covers, ventilators and suitable water level indicator, finishing, water-tightness test and all allied civil, mechanical and electrical works, complete at Lamphelpat.

(II) Design Drawing Construction Testing and Commissioning of RCC Emergency Reservoir of 0.4 ML capacity including Pump house, Installation of Water Level Indicator. Supply and installation of pump sets (Worthington/Mather Platt/Kirloskar make) capable of filling 0.8 ML in one and half hours with motors (2 working and 1 stand by) i/c manually operated travelling crane with girder for lifting the pumps, necessary R.C.C/Masonry Chambers, Compound fencing, Supply & Fixing Puddle Pipes & specials, Internal fittings & Testing etc duty room, site development works drainage system. Providing and fixing Internal pipes, pipe specials at Lamphelpat.

Providing, Laying of DI feeder mains with DI K9 pipe conforming to IS 12288:2002 specifications including excavation, sand bedding, jointing, backfilling, transporting and necessary road restoration works including providing and laying of DI/CI fittings (specials) and suitable DI/CI valves as per relevant IS codes and construction of masonry chambers including testing of pipe joints, fittings, valves and disinfection of all pipes, trial run and commissioning etc. complete. i) 400 mm dia - 12600.00 m ii) 300 mm dia - 600.00 m Total – 13,200.00 m

(I) Designing, Drawing, Providing and Constructing in-situ R.C.C. Aeration Fountain of about 5m height above GL consisting of at least 4 to 6 cascades with space requirement of 0.70 m2 per MLD exposed faces line with china glazed colour tiles of approved pattern i/c fixing & providing inlet pipe of suitable pipes i/c smooth finishing of supporting columns and vertical walls, watering, curing, weatherproof painting two coats and giving water tightness test, etc. for the capacity of 24.00MLD (i/c 20% overloading)complete.

(II) Designing, Drawing, Providing and Construction of R.C.C. raw water Stilling chamber, Channel, Parshall Flume with flow indicator meter i/c pipe arrangements etc, complete.

(III) Designing, Drawing, Providing and Constructing R.C.C. Flash Mixer Chamber with 1 minute detention time with inlet channel, using suitable Pipes, Valves, Specials, outlet of suitable Pipes, Valves, Wash Water Drainage Line with Valves etc. Outlet Valve Chamber with manhole Frame and Cover i/c smooth finishing inside and outside, watering, curing, providing top R.C.C. slab with Manhole Frame and Cover suitable Pipe Bend, railing of exposed pattern with painting etc. i/c providing weatherproof painting outside in three coats etc. complete to make a successful component of Treatment plant of capacity of 24.00MLD (i/c 20% overloading)giving satisfactory water tightness test etc. complete with all Civil, Mechanical, Electrical components of works as per I.S. 7090-1985 complete.

(IV) Designing, Drawing, Providing and Erecting Mechanical Equipment of Flash Mixer with Stainless Steel Impeller mounted on Stainless Steel, Vertical Shaft with ball bearing i/c providing electric motor with reduction gear to move the shaft i/c providing cover for motor and gear satisfactory test etc. complete.

(V) Designing (aesthetically), Drawing, Providing and Constructing Clariflocculator for treating 24.00MLD (i/c 20% overloading) capacity including electro mechanical parts complete.