JJM Scheme in Gomati District Tripura / SH- Quality improvement of Rural Water Supply Schemes by way of construction of 2(Two) Nos. of 2500 GPH and 5000GPH Capacity Package Type Iron Removal Plants (IRPs) attached to existing deep tube wells in/c.

Providing, installation & commissioning of package type Iron Removal Plant comprising of Iron Removal Filter of dual media filter with anthracite coal and sand, filter gravel, polypropelene double hexagonal nut strainer etc., mixing chamber for coagulants like sodium alluminates etc., oxidation chamber with manganese dioxide, metering pump for coagulant dosing, air compressor of suitable capacity with motor, back washing arrangements, disinfection with sodium hypochlorite solution through metering pump, all necessary pipes for raw water collection, inter connecting all the chambers, delivery outlet as necessary with 150 mm. dia. MS pipe along with all related civil, mechanical & electrical works etc. complete as per approved drawing ,process flow, technical specification & direction of the Engineer-in-charge. A. 2,500 GPH capacity.

B. 5000 GPH capacity.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. - All kinds of soil. a) All Kinds of Soil

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m. A)All kinds of soil

Supplying and filling in plinth, under floor, foundations etc. with sand (fine) from local quarry with all lifts including spreading in horizontal layers, watering, grading to required slope, ramming, consolidating and compacting each layer by using plate compactor or by any suitable method complete.

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - All work upto plinth livel:- i) 1:2:4 ( 1 Cement: 2 fine sand : 4 graded well burnt brick aggregate 40 mm nominal size).

ii) 1:3:6 ( 1 cement : 3 fine sand : 6 graded well burnt brick aggregate of 20 mm nominal size)

iii) 1:4:8 ( 1 Cement: 4 fine sand : 8 graded well burnt brick aggregate 40 mm nominal size)

Centering shuttering including struttings, propping etc. and removal of form work for: i) Foundations, footings, bases for columns etc. for mass concrete with timber plank.

ii) Columns, Pillars, Piers, Abutments, Posts and Struts with wooden plank