REPAIRS AND MECHANISED CLEANING OF SEWAGE LINES, MANHOLES, SEPTIC TANKS, FILTER BED AND CLEANING OF WATER TANKS FOR OTA UNDER GE STM CHENNAI.

Mechanised Cleaning of septic tanks by bailing out fluid, removing sediments, sludges washing septic tanks floor and walls with fresh water cleaned with wire brush, filling with fresh water and little quantity of well digested sludge complete all as specified and as directed by the Engineer-in-charge for the following capacity of septic tanks. Note: The quoted rate shall be inclusive of following:- (i) Solids/sludges removed from septic tank to be filled in excavated pit 3mtr away from Septic tank and covered with mud. (ii) Surrounding area of septic tank shall be cleared off from shrubs and other wild growth around 3metre away from the outer edge of the wall.

500 users septic tank capacity

250 users septic tank capacity

200 users septic tank capacity

100 users septic tank capacity

50 users septic tank capacity

25 users septic tank capacity

Mechanised Cleaning of manholes by bailing out fluid and removing sediments, washing manhole floors and walls with wire brush including filling with fresh and clean water and cleaning the sludge complete all as specified and as directed.

Manhole depth n.exc 450mm

Manhole depth exc 450mm and n.exc 600mm

Manhole depth exc 600mm and n.exc 750mm

Manhole depth exc 750mm and n.exc 1.0m

Manhole depth exc 1.0m and n.exc 1.50m

Manhole depth exc 1.50m and n.exc 2.50m

Manhole depth exc 2.50m and n.exc 3.00m

Cleaning of drains by bailing out fluid and removing sediments and cleaning the sludge complete all as specified and as directed.

Drain depth n.exc 300mm

Drain depth n.exc 300mm and n.exc 450mm

Drain depth n.exc 450mm and n.exc 600mm

Drain depth n.exc 600mm and n.exc 1200mm

Note:- (a) Contractor shall detail his supervisor to office of AGE B/R Mount daily by 9.00 AM who will report to concerned JE B/R /Engineer-in-Charge to receive all complaints of entire area under this contract. (b) Contractor shall provide service providers (sweepers) both the complaint cell located at (Inside OTA of Lawrence e Road, Cadet accn, ATA Area, DSC Line, New Demo Coy, Office buildings, OTA House, Eqtn sec, MT Area and etc.) as per the complaints list given along with all requisite tools, equipment's, including safely measures for attending complaint and ensure completion report by 5.00 PM same day. (c) Please note that all the complaints relating to sewage line shall be attended within same day (within 12 hour). In case of blockage in sewage line could not be detected/completed same day and concerned JE / Engineer-in-Charge is satisfied to the efforts applied but the same shall be attended and all blockage must be cleared by 24 hours (next day by 5.00 PM) without fails. (d) In case any complaint pertaining to clearing of blockage in sewage line is not removed /cleared within 24 hours (next day 5.00 PM). A penalty @ Rest. 500/- per complaint shall affected from contractor payments. (e) Blockage cleared between two man holes irrespective of length in between shall be treated as one complaint.

Rodding the existing sewage pipe line and removing all sludge's and foreign matters completely and neatly from the pipe line and making good to serviceable condition and ensuring free flow of sewage for 100mm bore of pipe complete all as specified and as directed.

All as per item No.4 here in before but 150mm bore of pipe complete all as specified and as directed.

All as per item No.4 here in before but 200mm bore of pipe complete all as specified and as directed.

Mechanised Cleaning the RCC service tanks by bailing out water, cleaning the floor and wall by scrubbing with wire brush, cleaning the sediments, mud, dust and removing the vegetation and fungus, washing with fresh water and applying two coat of white wash, repositioning the lid and complete for water tank capacity up to 500 litres complete all as specified and as directed.

All as per item No.7 here in before but 501 to 1000 ltrs capacity complete all as specified and as directed.

All as per item No.7 here in before but 1001 to 2000 ltrs capacity complete all as specified and as directed.

All as per item No.7 here in before but 2001 ltrs and above capacity complete all as specified and as directed.

M & L for seven stage cleaning and sterilization of inside the RCC/ PVC water storage tank of capacity not exceeding 500 ltr of any description and in any position comprising following cleaning and sterilization of water tanks through bacteriological treatment by using terbac g5/inchlor-5/nb-10/ terbac-g-65/ inoxi-60/nb-69 and ultra violet ray. make: rays cleantech/ inus watertech/ satya enterprise. location: saa seven stages are as under plants:- (a). first stage is to drain out the water by using exit valve or high capacity dewatering system. (b). second stage is cleaning all the algae formation inside the tank by using terbac g10/ inoxi-60/nb-69 laboratory tested branded chemical of the company ans scrubbing the walls of the tanks.(c). third storage is fresh water cleaning by high speed jet pump.(d). fourth stage and first bacteria screening is decertification by using terbac-g5/ inohor-5/nb-10 a govt laboratory certified branded halogen compound or e in c approved equivalent product. (e). fifth stage is cleaning the floor of water tank by industrial vaccum cleaner. (f). sixth stage is the second bacteria screening and sterilizing method by using ultra violet ray within the tank and kills all suspended bacteria. (g). seventh stage of cleaning and third bacteria screening is to sterilize the floor of the water tank by using laboratory certified, branded strong oxidizing agent terbac-g65/inoxi-60/nb-69 or einc approved equivalent product.

Note:- (i) company will submit government laboratory test certificate of terbac-g5/inchlor-5/nb-10, terbac-g65/ inoxii-60/nb-69, before cleaning, fix the sticker mentioning the date of cleaning & name of site and also provide certificate confirming the completion of sterilization of water tanks mentioning the name of station and date of cleaning. all the cleaning & sterilization staffs should be under accidental insurance coverage (ii) outlet pipe of hot should be plugged before cleaning the hot to avoid. Entering scals and the same shell be reconnected after cleaning the hot and the quoted rate is deemed to include for the provision. (iii) sterilization team will be comprised of at least 30% members who are minimum 03 months certificate holder in water tanks sterilization. (iv) contractor will be responsible for rectification of complaints occurred during cleaning the tank i.e.. no water in tank/over flow due to broken of float valve/ blockage to be included in quoted rate. Note:- the work shall be carried through specialized agency rays cleantech/ inus watertech/ satya enterprise.

All as per ser item No.11 above but for of inside the RCC/ PVC water storage tank of capacity not exceeding 1000 Ltr through bacteriological treatment by using TERBAC G5/ Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY. Make:- RAYS CLEANTECH/ INUS WATERTECH/ SATYA ENTERPRISE.

All as per ser item No.11 above but for of inside the RCC/ PVC water storage tank of capacity not exceeding 2000 Ltr through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY. Make:- RAYS CLEANTECH/ INUS WATERTECH/ SATYA ENTERPRISE.

Excavating in trenches, n.exc 1.5m wide and n.exc 1.5m in depth for foundation, etc. n.exc 10 sqm on plan and n.exc 1.5m in depth and getting out in hard/ dense soil.

All as per item No.14 here in before but depth exc 1.50 mtr but n.exc 3.00 mtr complete all as specified and as directed.

Returning, filling in, including spreading, levelling watering and well ramming in layers n.exc 25cm with excavated soils complete all as specified and as directed.

Removing excavated material to a distance n.exc 50m depositing where directed at a level n.exc 1.5m above the starting point complete all as specified and as directed.

Demolition and breaking up drain pipe (salt glazed ware, AC or reinforced concrete) set in cement mortar for 150mm internal dia of pipe complete all as specified and as directed.

Demolition and breaking up drain pipe (salt glazed ware, AC or reinforced concrete) set in cement mortar for 200mm internal dia of pipe complete all as specified and as directed.

Demolition and breaking up drain pipe (salt glazed ware, AC or reinforced concrete) set in cement mortar for 300mm internal dia of pipe complete all as specified and directed.

M & L for laying DWCP 150 mm dia pipes in trenches Class SN-4 conforming to IS 16098 (Part -2) in 6 mtr length with coupler complete all as specified and as directed.

M & L for laying DWCP 200 mm dia pipes in trenches Class SN-4 conforming to IS 16098 (Part -2) in 6 mtr length with coupler complete all as specified and as directed.

M & L for laying DWCP 300 mm dia pipes in trenches Class SN-4 conforming to IS 16098 (Part -2) in 6 mtr length with coupler complete all as specified and as directed.

M & L for PCC 1:3:6, type C-2 (using 40mm grade stone aggregate) to drain pipes including packing under and haunching against the sides of pipes after they are laid and tested for 150mm bore complete all as specified and as directed.

M & L for PCC 1:3:6, type C-2 (using 40mm grade stone aggregate) to drain pipes including packing under and haunching against the sides of pipes after they are laid and tested for 200mm bore complete all as specified and as directed.

M & L for cement concrete bed to drain pipes including packing under and haunching against the sides of pipe after they are laid & tested for 300 mm bore of pipe with cement concrete 1:4:8 type D-2 using 40mm graded stone aggregate complete all as specified and as directed.

M & L for UPVC pipes 150mm dia laid in trenches and jointed in CM 1:1 and tested complete all as specified and as directed.

M & L Reinforced concrete pipes bore of pipe 150 mm (internal dia), class NP-2, laid and jointed complete with collars complete all as specified and as directed.

M & L Reinforced concrete pipes bore of pipe 200 mm (internal dia), class NP-2, laid and jointed complete with collars complete all as specified and as directed.

Demolition of cement concrete (reinforced) for any description and in any position not other wise specifically provided for

Demolition of Brickwork built in cement mortar including all quoins, arches, pillars, etc., complete all as specified and as directed.

M & L for plain Cement concrete type D-2 1:4:8 (using 40mm graded stone aggregate) in foundations, filling and mass concrete complete all as specified and as directed.

M & L for PCC 1:2:4 type B-1 using 20mm graded aggregate as in coping and benching including weathering slightly rounded or chamfered angles and throating as directed including form work complete all as specified and as directed.

M & L for Brick work with fly ash bricks straight or curved on plan and 6 metre mean radius built in CM 1:4 complete all as specified and as directed.

M & L for providing precast cement concrete Type B-1 1:2:4 (20mm graded aggregate) in cover slabs and setting in Set in Cement Mortar 1:6 complete with joints to match complete all as specified and as directed.

M & L for Mild steel TMT bars 6 to 8mm dia of grade Fe 500, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips quality conforming complete all as specified and as directed.

M & L for rendering 15mm thick on fair faces of brick work or concrete surfaces in cement mortar 1:4 and finished even and smooth without using extra cement mixed with WPC @ 3%by weight of cement complete all as specified and as directed. Note: - WPC shall be measured and paid separately.

Supply only integral water proofing compound

M & L for Mild steel TMT bars 10mm dia and over of grade Fe 550, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips quality conforming complete all as specified and as directed.

M & L in repair PVC (SWR) gully trap 125/ 110mm setting and jointing with solvent cement complete all as specified and as directed.

Cutting into existing manholes for connecting new drains, making good to pipe and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 section) in cement concrete 1:2:4 type B-1 smooth finished and reforming benching as required 150mm bore complete all as specified and as directed.

S & F PVC 150mm dia grating, square or round (with or without hole) and fixed in position using cement mortar complete all as specified and as directed.

Cutting opening around floor trap (wall junction)/ nahani trap and repairing joint leaking using cement slurry including replacing the damaged traps and making good the surface to match with adjoining area and ensure leak proof joint complete all as specified and as directed.

S & F for FRP cover slab (Fiber Reinforced Plastic) manhole cover any size complete all as specified and as directed.

S & F in repair PVC (SWR) pipes single socketed 75mm bore, in any length with rubber ring joints laid in trenches or in floors with clamps including removing old unserviceable complete all as specified and as directed.

All as per item No.45 here-in-before but 110mm dia complete all as specified and as directed.

S & F in repair PVC (SWR) bends any radius 75mm bore complete all as specified and as directed.

S & F in repair PVC (SWR) bends any radius 110mm bore complete all as specified and as directed.

S & F in repair PVC (SWR) bends any radius 110mm bore provided with access door complete all as specified and as directed.

S & F in repair PVC (SWR) junction (Single T) radius 110mm bore.

S & F in repair PVC (SWR) vent cowl 110mm bore.

S & F in repair PVC (SWR) vent cowl 75mm bore.

S & F in repairs 20mm laying of CPVC pipe & all fittings/ fixtures concealed to walls and ceilings or laid in floors complete all as specified and as directed.

S & F in repairs 25mm laying of CPVC pipe & all fittings/ fixtures concealed to walls and ceilings or laid in floors complete all as specified and as directed.

S & F in repairs Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe 20mm Bore complete all as specified and as directed. (Minimum weight 210 gms)

All as per item No.55 here-in-before, but 25mm bore (Minimum weight 455 gms)

Taking down cement plaster of any description including raking out joints, hacking for key, scrubbing down with water etc. complete all as specified and as directed.

M & L for 15mm thick rendering in two layers of 10mm thick and 5mm thick on fair faces of brick work or concrete surfaces in cement mortar 1:6 finished even & fair, using water proofing compound in top layer complete all as specified and as directed. (WPC shall be measured and paid separately as "Supply only".)

Preparation of new plastered or unplastered surfaces of wall and applying two coats of cement base paint over a coat of alkali-resistant priming coat complete all as specified and as directed.

Taking down steel gates from its position and repair the same including through tining alignment properly including welding additional stiffer, brass, pintol hinges locking arrangements etc. and erecting the same back in position after applying one coat of synthetic enamel paint in area of gate n.exc 5.00 Sqmts complete all as specified and as directed.

Demolition of cement concrete (unreinforced) in ground floors & paving's n.exc 15 cm thickness (below or above ground level), complete all as specified and as directed.

M & L 75mm thick PCC 1:3:6 type C-2 (40mm graded Aggregate) as in sub floors, sub bases, floors and paving's, etc. complete all as specified and as directed.

Sand filling under floors or in foundation including watering and consolidation, complete all as specified and as directed.

Machine pressed precast concrete interlocking paver block with grey cement and no pigment, any shape, size and design as approved by Engr-in charge confirming to IS 15658-2006 of 80mm thickness, M-35 grade, complete all as specified and as directed.

Chequered coloured cement concrete tiles glossy finish of size 300 x 300 x 25mm thick, with grey cement and pigment, set, jointed and pointed in neat cement slurry, laid in floors, over and including 15mm thick screed bed in cement mortar 1:6 complete all as specified and as directed.