PROVN OF SEWAGE TREATMENT PLANT AT SARAIBARI AT JORHAT UNDER GE JORHAT

Surface excavation not exceeding 30 cm deep and averaging 15 cm deep and getting out in soft / loose soil complete all as specified and directed.

Earth work in excavation by mechanical means (Hydraulic excavator)/ in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) in all kind of soil not exceeding 1.50 m in depth , including dressing of sides and amming 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 complete all as specified and directed.

Earth work in excavation by mechanical means (Hydraulic excavator)/ in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) in all kind of soil exceeding 1.50 m in depth but not exceeding 3.00 m in depth , including dressing of sides and amming 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 complete all as specified and directed.

Earth work in excavation by mechanical means (Hydraulic excavator)/ in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) in all kind of soil exceeding 3.00 m in depth but not exceeding 4.50 m in depth , including dressing of sides and amming 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 complete all as specified and directed.

Excavating in trenches, n exc 1.5 m wide and not exceeding 1.5m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. not exceeding 10 sqm on plan and getting out soft/loose soil complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm complete all as specified and directed.

Removing excavated material (soil) not exceeding. 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

Removing excavated material exceeding 500 m but not exceeding 1.50 Km and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified and directed.

Use and waste for formwork to faces of walls, retaining walls, abutments, parapets and staircase railings and similar work curved surface for fair finished surface of concrete complete all as specified and directed.

Use and waste for form work to soffits of suspended slabs such as roof slabs, floor slabs, landings and similar work not exceeding 200 mm thick (Horizontal or sloping) curved surface for fair finished surfaces of concrete complete all as specified and directed.

M&L for PCC (1:3:6) type C2 (using 40 mm graded crushed stone aggregate) as in foundation and mass filling complete all as specified and directed

M&L for PCC (1:2:4) type B2 (using 40 mm graded crushed stone aggregate) as in foundation and mass filling complete all as specified and directed

M&L for reinforced cement concrete M-30 (20 mm graded crushed stone aggregate) design mix as in walls, retraining walls, basement walls, ballast walls and the like any thickness above top of footings including attached pillasters and buttresses complete all as specified and directed.

M&L for reinforced cement concrete M-30 (20 mm graded crushed stone aggregate) design mix as in slabs supported on walls, beams and columns in floors, roofs, landings, balconies, canopies, deck slabs and in shelves and the like complete all as specified and directed.

M&L for mild steel deformed TMT bar 10 mm dia and over cut to length, bend to shape required, including cranking, bending spirally for hooping for columns, hooking and binding with and including mild steel wire (annealed) not less than 0.9mm dia complete all as specified and directed.

M&L for mild steel deformed TMT bar 5 mm dia and over upto and including 10 mm dia cut to length, bend to shape required, including cranking, bending spirally for in stirrup, spacers and binders and binding with and including mild steel wire (annealed) not less than 0.9mm dia complete all as specified and directed.

M&L for brick work with sub-class "B" old size bricks of class designation 75, straight or curved on plan exceeding 6 m mean radius built in CM (1:6) complete all as specified and directed

M&L for brick work with sub-class "B" old size bricks of class designation 75, straight or curved on plan exceeding 6 m mean radius built in CM (1:4) complete all as specified and directed

M&L for 15 mm thick rendering on brick or concrete wall surfaces in cement mortar (1:4), finished even & smooth without using extra cement complete all as specified and directed.

M&L for 10 mm thick rendering on fair face of brick or concrete wall surfaces in cement mortar (1:4), finished even & smooth without using extra cement complete all as specified and directed.

M&L for cement concrete (1:2:4) type B-1, (using 20 mm graded crushed stone aggregate) as in coping, hold fasts or similar type of work including necessary formwork complete all as specified and directed.

M&L for rolled mild steel work in tubular trusses including special shaped washers etc. complete using ERW or induction butt welded tubes and painted with one shop coat of zinc chromate primer paint complete, tubes conforming to IS 1161-1979 all as specified and directed.

S&F mild steel plate (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, with out any attachment using Fe-410W (Grade E-250 quality 'A') complete all as specified and directed

M&L for 100 mm thick PCC (1:4:8) type D2 (using 40 mm graded crushed stone aggregate) as in sub base of flooring complete all as specified and directed

M&L for providing and laying 80 mm thick factory made chamfered edge cement concrete paver block of M-40 grade with approved colour,design & pattern as in footparth, parks,lawns, drive ways or light traffic parking etc.,of required strength, thickness & size/shape, made by table vibratory method using PU mould, laid in required colour & pattern over and including 50 mm thick compacted bed of fine sand, compacting and proper embedding/ laying of inter locking paver blocks into the sand bedding layer through vibratory compaction by using plate vibrator, filling the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping extra sand complete all as specified and directed;

M&L for PCC (1:2:4) type B1 (using 20 mm graded crushed stone aggregate) as in kerbs or mud stops rounded or chamfered on edges including necessary form work complete all as specified and directed

Extra for forming fair finished drain or channel 30 cm inner girth in cement concrete, using extra cement, including forms, moulds, mitred/stopped ends complete all directed.

M&L for framed work as in doors or gates of angle or other section with gusset plates, rails, braces, drilled for fixing of steel sheeting or other covering, doors, etc. to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings (exclusive of steel sheeting or other covering, running rails and guides) and hanging; also fastening and fixing complete all as specified and directed.

Supply and fix mild Steel angle posts and struts in fencing including cutting tops to shape, drilling holes, notching for wire, etc. flat iron fillets (for securing wire mesh etc) including all necessary drilling, bolting or riveting, etc. and similar work conforming to Fe 290 ( Gde E-165) complete all as specified and directed.

M&L for MS screw bolts,(machine made with hexagonal or square head one end and screwed the other, or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut exc 5cm but n exc 10cm long dia of shank 10 mm to 15mm complete all as specified and directed.

Supply only Chain Link MS galvanized fencing of mesh size 100 mm X 100 mm X 3.15 mm dia complete all as specified and directed.

Fixing only chain link fencing including line wires, any mesh, size and type of standard , rails, straining bolts, etc. including provision of binding wire complete all as specified and directed.

M&L for mild steel round bar 10 mm dia and over cut to length, bend to shape required, including cranking, bending spirally for hooping for columns, hooking and binding with and including mild steel wire (annealed) not less than 0.9mm dia(Fe-410-W or (Gde E-250) quality A or Fe 290 (Gde E-165) complete all as specified and directed.

M&L for preparation of new steel surface of any description not otherwise described, n.exc 10 cm in width or girth and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

Supply and fix reinforced concrete pipes of 150 mm bore, class NP3 including collars laid and jointed completed all as specified and directed

Supply and fix Cast iron work grade FG 150 (articles not exceeding 5 Kg each), unmachined, in brackets, gully traps, gratings, railing, frames, manhole covers, fire and soot doors, dampers, stop valve boxes, gate stops, parts of ranges, balusters and similar articles complete all as specified and directed.

M&L for PCC (1:3:6) type C2 using 40 mm graded broken stone aggregate as in concrete bed to RCC pipes of 150 mm dia including packing under and completely surrounding the pipes with concrete after laying and testing of the pipes complete all as specified and directed.

Supply, Installation Testing & Commissioning of outdoor type PLC ( Programmable Logic Controller ) / RTU (Remote terminal Unit) based Automation, Protection Panel for Lift Well with feature of Dual mode communication i.e. wireless Dual SIM Card based communication and wireless Radio Frequency based communication (The module should be programmed to automatically toggle between the two communication mode based on the actual signal strength available), suitable for control and monitoring of 03 Nos. Pumps, 1 No. Energy Meters, 01 No Ultrasonic sensor. The panel should be of suitable size, front opening type, fabricated from 2.0 mm thick CRCA Sheet & mounting channel 40x40x5mm made out of Angle iron with proper ferrule & cable gland, internal wiring with PVC insulated multistranded copper conductor FRLS cable of adequate size. (i) The Panel should be capable of performing following functions in Lift well all as specified and directed:- (a) Time & level based operation of lift well pumps. (b) Automatic duty cycle based operations of Pumps (c) Auto Change Over In Case of Pump Failure (d) Single Phasing Prevention, phase sequence corrector, voltage unbalancing protection

Serial item No. 48 continued (e) Manual Mode Operation (all connected sub systems & operations in Sewage treatment plant) from the PLC/ RTU based Control Panel. (ii) The panel shall have 01 No. PLC/ RTU with following specifications:- (a) Discrete Input Logic (b) Should have suitable No. of Discrete Input and Discrete Output: - Relay/Transistor (c) Protocol supported : isolated serial/ TCP link: Modbus master/slave and DNP 3.0 (d) Standard supported :- ANSI/ISA 12-12-01, CSA C22.2 No 142, CSA C22.2 No 213, EN/IEC 61131-2:2007 (e) Web Services: - Integrated Web Server (f) 02 Nos. isolated RS 485 communication port, 1 Nos. Ethernet communication port with 10BASE-T/ 100BASE-TX. (g) Number of Slave: - 64 Modbus TCP, & adequate DNP - 3 master slaves. (h) PLC/RTU shall be certified by NABL for electromagnetic compatibility and radio disturbance standards as per CISPR22, IEC 61000-4-2:2008, IEC61000-4-3:2010, capable of sending data to multiple route and on precise location. (j) Contractor shall consider in quoted rates for any changes in logic within 5 years of installation as per requirement of department. (k) Certified with IEC62443 (iii) Suitable number of indicating LEDs on the panel.

Supply, installation, Testing & commissioning of Non Clog Sewage Submersible Pump set of capacity Head 20 Mtr, Discharge 167 LPM, heavy duty of adequate capacity (Flow and head) of 3 Phase, 415 Volt, Max solid size 35 mm (as per requirement) with chorme steel impeller and cutter, including necessary RCC foundation & SS Nut bolts in side sewage well as per OEM recommendation including installation guide rail pipe made up of SS 306 and SS 306 lifting chain (As per sump depth including lifting height), Rubber Diaphram, Guide Shoe, Support Bracket, Guide Pipe Holder, Pump Stand, Water Proof Control and power cables (As per sump depth including lifting height), Duck foot band, Control and POwer panel for pump as supplied by OEM and as described below separately, suitable size Discharge pipe made up of SS 306, Butter fly Valve - 01 No and Non Return Valve with Rubber ball type - 01 No (As per bolts as recommended by OEM all as specified and directed by Engr-in-Charge. (Installation of Sewage Non Clog Submersible Pump Sets to be carried Out as per OEM Installation Manual) Note : - Contractor shall provide necessary RCC foundation with fixing bolts & nut

s for fixing support bracket of duck foot bend. (i) Pump Casing The radially split casing is provided with delivery nozzle cast intergal with it. Suction is axial and delivery nozzle is central and horizontal. Specially designed Semi-concentric casing results in reduced radial thurst and ensures vibration free performance. wide volute passage ensures non-clogging operation of the pump. (ii) Impeller Impellers are of non-clog type which allow smooth passage of solides. Impellers are with single or multi vanes in semi-open, enclosed or free flow designs to cater to wide applications.

Serial item No. 51 continued (iii) Shaft The high tensile steel shaft accurately machined and ground is supported by two ball bearings in the motor above the impeller. Shaft is designed to transmit the power without undue vibrations and deflections. The shaft is common for pump and motor of monoblock design. (iv) Mechanical Seals Two mechanical seals in tandem arrangement are provided to ensure no ingress of water or sewage in motor. (v) Bearings Bearings are grease lubricated and sealed for life, hence maintenance free. (vi) Drive Motor is dry type submersible and cooled by liquid being handled, Motors are air tested for leak free operation, degree of protection for motor is IP68 as per IS:2147, Class of insulation : F, Voltage : 415 Volt ± 10 %, Frequency : 50 Hz ± 5 % (vii) Cable A specially designed cable, 1.1 kV grade having annealed tinned copper conductor, insulated with Electron Beam Irradiated crosslinked elastomeric compound (compatible for continous operation at 1200 C) cores laid up with a proof cotton binder tape and sheathed overall with Electron Beam Irradiated Cross-linked HD HOFR elastomeric compound and generally confirming to IS 9968 Part I. The cable with this unique combination of insulating and sheathing material offers best resistance to acidic or alkaline sewage medium and to effluent gases coming out of the sump. The cable is more flexible than PVC cable making coiling and handling easier and light in weight compared to PVC cable of the same size.

Excavating in trenches, n exc 1.5 m wide and exceeding 1.5m in depth but not exceeding 3.00 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. not exceeding 10 sqm on plan and getting out soft/loose soil complete all as specified and directed.

Supplying, errecting and fixing of steel tubular swaged poles with cast iron base plate of size 300mm x 300mm x 6mm, finial taper plug, bolts, nuts & screws for type 410 SP 31 (Overall length 9.00 m) Swan Neck Type (Single Swan) including painting with two coats of aluminium paint over one coat of redoxide primer on all exposed surfaces and tarring with black bituminous paints to embedded portion in PCC and providing 3 Nos of 30 cm wide circular bands with black & yellow paint starting from plinth level at a gap of 30 cm in between 2 bands and numbering of poles, in yellow paint over black painted back ground at a height of 2m from bottom of pole with 5 cm large bold letters 2" (inch) wide complete all as specified and directed. Note : - Excavation, earth work, PCC in foundation and coping shall be measured and paid separately under relevant item of this sch.

Supply and laying or fixing or passing through pipe, 1100 volts grade heavy duty cable with PVC insulated aluminium conductor served with an inner sheathing of PVC tape armoured with galvanized steel wire or tape and overal PVC sheathed 4 sq mm nominal cross section in service connections complete all as specified and directed.

Supply, laying and testing cable XLPE insulated, screened, PVC bedded, galvanized steel wire armoured electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of 35 Sqmm 3.5 core complete all as specifed and directed.

S&F of Gun Metal Gate Valve with iron wheel head, screwed down and fixed for pipe of 25 mm bore complete all as specified and directed.