Overhauling including running maintenance of 0.2 MLD Sewage Treatment Plant (STP) installed at Arty Hq Fardikot (4th Call)

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 up to 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.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:1½:3 (1 Cement: 1½ coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:5:10 (1 cement : 5 coarse sand (zone-III) derived from natural sources : 10 graded stone aggregate 40 mm nominal size derived from natural sources)

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-Charge) of total coated thickness 0.50 mm (base metal of minimum 0.45 mm thickness with total coating thickness of 0.05mm) with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing precoated galvanised steel sheet roofing accessories of total coated thickness 0.50 mm (base metal of minimum 0.45 mm thickness with total coating thickness of 0.05 mm) with Zinc coating 120 gram per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self drilling/ self tapping screws complete : Ridges plain (500 - 600mm)

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : Two or more coats on new work.

Cleaning of chocked sewer line by diesel running vehicle mounting hydraulic operated high pressure suction cum jetting sewer cleaning machine fitted with pump having 4000 litres suction capacity and 6000 litres water jetting tank capacity including skilled operator, supervising engineer etc. for cleaning and partial de-silting of manholes and de-chocking of sewer lines. De-chocking and flushing of sewer line from one manhole to another by high pressure jetting system of 2200 PSI for sewer line from 150mm dia upto 300mm dia for all depth.

Operation and running maintenance of 0.2 MLD STP by engaging required manpower including 2 Nos Skilled plant operator and 01 Sewerman/Helper daily for round the clock operation of plant, Supplying and dosing of approved chemical/sodium hypochloride as per requirement, Periodical servicing and minor repairs of electro - mechanical equipments i/c oil filters and consumables etc, periodical collection and testing of treated water for BOD standards in approved lab and production of lab certificate etc including cleaning & opening of connected sewer lines of the campus to ensure proper supply of sewage to the plant as per direction of engineer in charge.

Cleaning of deposited sludge and liquid waste from existing inlet chamber,equilisation tanksludge holding tank and treated water tank and disposal of the same as per direction of Engineer-in-charge.

Cleaning of solid deposits from existing MBBR-I ,II and tube settler chamber disposal of the same as per direction of Engineer-in-charge.

Taking out old media gravels of various sizes from from existing aeration tank ,cleaning of the same and re-laying in the bed complete as per direction of engineer-in-charge.

P/L of new media gravels of sorted sizes from 40mm-53.5mm sizes in the existing aeration tank complete as per direction of engineer-in-charge.

Providing and filling media inside Dual Media Filter Plant as per direction of engineer-in-charge. Anthracite Filter media

Providing and filling media inside Dual Media Filter Plant as per direction of engineer-in-charge. Calcite Filter Media

Providing and filling media inside Dual Media Filter Plant as per direction of engineer-in-charge. Activated Charcoal Filter media

Providing and filling media inside Activated Carbon Filter Plant as per direction of engineer-in-charge.

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