MECHANICAL CLEANING AND STERILIZATION OF OVERHEAD RESERVOIR AND UNDERGROUND SUMP INCLUDING REPAIRING OF SEEPAGES UNDER AGE E/M NO-II OF GE (UTILITY) SECUNDERABAD

Amount

M&L for seven stage cleaning and sterilization inside the existing RCC overhead tank of capacity 250000 gallon through bacteriological treatment by using TERBAC G10, TERBAC G5,TERBAC G65 /E-in-C's Branch approved chemical as recommended by Engineer- in-Charge and ULTRA VIOLET RAY at Pump House at any height (as per site requirement), including suitable staging/scaffolding. Seven stage are as under follows:- (a) First stage is to drain out the water by using high capacity pump of dewatering system. (b) Second stage is cleaning all the algae formation inside the tank by using TERBAC G10 a laboratory tested branded chemical / E-in-C's Branch approved chemical as recommended by Engineer-in-Charge. (c) Third stage is scrubbing the walls and floor with mechanized scrubber & fresh water clening by high speed jet pump (rotary & flat) to remove all scaling, algae and other formed particles on internal surfaces of the tank completely. (d) Fourth stage and first bacteria screening is Sterilization by using TERBAC-G5 a Laboratory certified branded halogen compound /E-in-C's Branch approved chemical as recommended by Engineer-in-Charge., Test certificate of chemical from government laboratory mentioning suitability for sterilization should be submitted to the office before using for sterilization . (e) Fifth stage is cleaning the floor of the water tank by heavy duty industrial vacuum cleaner and sludge sucker having maximum 1200 W with suitable heavy duty rugged motor to free any foreign and loose particles of any nature.

(f) Sixth stage is the second bacteria screening and sterilizing method by using ultraviolet ray by heavy duty UV radiation which shall have 360 degree of sterilization with in the tank to kill all suspended bacteria (The radiation shall portable and effective for sterilization of drinking water tanks for dimination of floating and suspended bacteria.) (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor, Roof and wall of the water tank by using laboratory ceritfied branded strong oxidizing agernt TERBAC 65 of M/S Ray's clean tech or equivalent any non toxic bio-degradable eco-friendly anti-bacterial agent certified by a Govt. approved laboratory to disinfect the over head tank from all harmful pathogens. (h) Cleaning of external and internal surfaces, lid wall of the tank, structure for all scales and other particles any algae, hives and any type of vegetation or any other unwanted matters, scrapping of old paint and painting with two coats of cement based water proof apex paint complete all as directed. (j) A sticker of appropriate size and colour as directed by Engr-in-Charge and of non degradable material with printed details as under:- (i) CA No. (ii) Name of Applicant (iii) Name of the Contractor (iv) Columns for date of cleaning and expiry date will be written or printed on the sticker by permanent marking ink. (k) Painting of angle iron ladder for OHT after scrapping of old paint by emery paper or any other means with two coat of enamelled black paint over a coat of red oxide primer including arrangement of scrap folding/ bamboo structure required for entire work. Note: Note: (i)All required safety equipments (Gumboot, helmets,safety belts,Safety googles, torch light etc) and necessary insurance for safety of working staff to execute the work is responsibility of the contractor.(i) Lighting arrangements if required to be provided by the contractor temporarily at his own arrangements and the amount quoted for that is deemed to be inclusive in the unit rate and electricity/diesel shall not be provided by the MES. (iii) Contractor will not be allowed more than one day to do the work inside of the each OH Tank / UG Sump to prevent interruption of water supply to the users.

All as per item No 1 above but the capacity of the tank is 150000 gallon

All as per item No 1 above but the capacity of the tank is 100000 gallon

All as per item No 1 above but the capacity of the tank is 50000 gallon

All as per item No 1 above but the capacity of the tank is 25000 gallon

All as per item No 1 above but the capacity of the tank is 400000 gallon at High Level Water tank

M&L for seven stage cleaning and sterilization inside the existing RCC Semi undergtround sump of capacity 1000000 gallon (10 LG) through bacteriological treatment by using TERBAC G10, TERBAC G5,TERBAC G65 /E-in-C's Branch approved chemical as recommended by Engineer- in-Charge and ULTRA VIOLET RAY at various Pump Housees including necessary arrangement (as per site requirement). Seven stage are as under follows:- (a) First stage is to drain out the water by using high capacity pump of dewatering system. (b) Second stage is cleaning all the algae formation inside the tank by using TERBAC G10 a laboratory tested branded chemical / E-in-C's Branch approved chemical as recommended by Engineer-in-Charge. (c) Third stage is scrubbing the walls and floor with mechanized scrubber & fresh water clening by high speed jet pump (rotary & flat) to remove all scaling, algae and other formed particles on internal surfaces of the tank completely. (d) Fourth stage and first bacteria screening is Sterilization by using TERBAC-G5 a Laboratory certified branded halogen compound /E-in-C's Branch approved chemical as recommended by Engineer-in-Charge. Test certificate of chemical from government laboratory mentioning suitability for sterilization should be submitted to the office before using for sterilization . (e) Fifth stage is cleaning the floor of the water tank by heavy duty industrial vacuum cleaner and sludge sucker having maximum 1200 W with suitable heavy duty rugged motor to free any foreign and loose particles of any nature.

(f) Sixth stage is the second bacteria screening and sterilizing method by using ultraviolet ray by heavy duty UV radiation which shall have 360 degree of sterilization with in the tank to kill all suspended bacteria (The radiation shall portable and effective for sterilization of drinking water tanks for dimination of floating and suspended bacteria.) (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor, Roof and wall of the water tank by using laboratory ceritfied branded strong oxidizing agernt TERBAC 65 of M/S Ray's clean tech or equivalent any non toxic bio-degradable eco-friendly anti-bacterial agent certified by a Govt. approved laboratory to disinfect the over head tank from all harmful pathogens. (h) Cleaning of external surfaces, lid wall of the tank, structure for all scales and other particles any algae, hives and any type of vegetation or any other unwanted matters, complete all as directed. (j) A sticker of appropriate size and colour as directed by Engr-in-Charge and of non degradable material with printed details as under:- (i) CA No. (ii) Name of Applicant (iii) Name of the Contractor (iv) Columns for date of cleaning and expiry date will be written or printed on the sticker by permanent marking ink. (k) Painting of angle iron ladder for UG sump after scrapping of old paint by emery paper or any other means with two coat of enamelled black paint over a coat of red oxide primer including arrangement of scrap folding/ bamboo structure required for entire work. (l) Painting of any type of pipe in side / outside the tank with suitable colour coding. Note: (i)All required safety equipments (Gumboot, helmets,safety belts,Safety googles, torch light etc) and necessary insurance for safety of working staff to execute the work is responsibility of the contractor.(i) Lighting arrangements if required to be provided by the contractor temporarily at his own arrangements and the amount quoted for that is deemed to be inclusive in the unit rate and electricity/diesel shall not be provided by the MES. (iii) Contractor will not be allowed more than one day to do the work inside of the each OH Tank / UG Sump to prevent interruption of water supply to the users.

All as per item no 7 above but the capacity of the tank is 500000 gallon (5 LG)

All as per item no 7 above but the capacity of the tank is 200000 gallon (2 LG)

All as per item no 7 above but the capacity of the tank is 50000 gallon

All as per item no 7 above but the capacity of the tank is 25000 gallon

M & L for arresting leakages in semi underground Sump with the following step (i) excavation around the sump and identify the leakages /seepage portion of the semi underground sump and Cutting the contruction joint in "V" shaped grooves. (ii) Drilling Hole in the Honey Comb portion. (iii) Patching the entire V shaped grooves with cement,admix and quick setting co,mpound. (iv) next step is grouting to be done with intraplast EP - a free flowing grout mix. ( During all these operation tank must be fill with water . v) Fixing of PVC nozzle for grouting with quick setting compound admix with cement. Inject the cement mixture with intraplast EP through the nozzle by hi pressure inject Pump.. Note : only excavation , returning filling and removing of surplus soil will be measured and paid separately under relivent items. During excavation any damages to the existing infrastructure (i.e pipe, wall etc) to be repaired/replaced by thr contractor by his own cost.

M&L for water proofing coating to be made in 2 coats in the inner walls of the tank with tank coat epoxy coating (potable water grade)

M&L for ladder for replacement of existing unserviceable ladder at OHT and underground sump as per existing specification with Cross-arms, Bracings, Supports, Clamps and Back Plates fabricated from Structural Steel Sections including Nuts, Bolts, Washer, welding, bending cold or hot, drilling holes for Bolts, in any shape or size as indicated or directed and inclusive of One Coat of Aluminium Primer, One Under Coat and One Finishing Coat of Aluminium Paint, for complete all as specified and as directed.

M&L for painting of raising main, distribution, wash out and overflow pipes on over head tank with suitable colour coding of pipe dia 100 mm by using synthetic enamelled paint first grade after scrapping /cleaning

M&L for painting of raising main, distribution, wash out and overflow pipes on over head tank with suitable colour coding of pipe dia 100 mm by using synthetic enamelled paint first grade after scrapping /cleaning

M&L for painting of raising main, distribution, wash out and overflow pipes on over head tank with suitable colour coding of pipe dia 100 mm by using synthetic enamelled paint first grade after scrapping /cleaning

M&L for painting of raising main, distribution, wash out, pumping /delivery and overflow pipes on underground sump with suitable colour coding of pipe dia 100 mm by using synthetic enamelled paint first grade after scrapping /cleaning

M&L for painting of raising main, distribution, wash out, pumping /delivery and overflow pipes on underground sump with suitable colour coding of pipe dia 150 mm by using synthetic enamelled paint first grade after scrapping /cleaning

M&L for painting of raising main, distribution, wash out, pumping /delivery and overflow pipes on underground sump with suitable colour coding of pipe dia 200 mm by using synthetic enamelled paint first grade after scrapping /cleaning

M&L for replacement of existing water level indicator in OHT of any size , capacity and height by by Float and board types levelGuage using rope, ball valve, pully, necessary support , PCC ,display board ,indicator/pointer , necessary painting and numbering complete all as required for proper functioning of level indicator complete all as specified and directed. (All area under AGE E/M No-II)

M&L for replacement of existing water level indicator in UG Sump of any size , capacity and height by by Float and board types levelGuage using rope, ball valve, pully, necessary support , PCC ,display board ,indicator/pointer , necessary painting and numbering complete all as required for proper functioning of level indicator complete all as specified and directed.( Race course PH, Gough Line PH and GRPH)

M&L for painting of water distribution header including all control valves and all exposed pipe of any size by using synthetic enamelled spray painting after scrapping /cleaning complete all as directed at race course PH

M&L for painting of water distribution header including all control valves and all exposed pipe of any size by using synthetic enamelled spray painting after scrapping /cleaning complete all as directed at GRPH

M&L for painting of water distribution header including all control valves and exposed pipe by using synthetic enamelled spray painting complete all as directed at Murcury PH/RMC PH

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr depth for foundation, laying of poles in trenches and getting out in hard /dense soil complete all as specified and as directed Engineer-in-Charge.

Returning, filling including spreading, levelling, watering and well ramming in layers not exceeding 25 cms thick complete all as directed by Engineer-in-Charge.

Removal of surplus soil to a distance no exceeding 50 mtrs and depositing where directed at a level not exceeding 1.5 mtrs above from the starting point complete all as directed by Engineer-in-charge.

M&L Cement Concrete 1:2:4 (20mm Graded Stone Aggregate) as in Side Wall of Cable Duct, etc., complete all as specified and as directed.

Surface excavation not exc 30 cm deep and averaging 15cm deep and getting out hard/dense soil

Rough Excavation n.exc 1.5 m deep and getting out hard /dense soil

Demolition of Cement Concrete (un-reinforced) in Ground Floors and Pavings not exc. 150mm thickness (above or below Ground Level) and removing the same from Site(s), complete all as specified and as directed.

M&L for shingle filling in floors or pavings of Gauge 40 to 63 mm, deposited, spread and levelled in layers not exc. 150mm thick, watered and rammed to a True Surface, complete all as specified and as directed.

M&L Cement Concrete 1:3:6 (40mm Graded Stone Aggregate) as in Foundation of Poles, Stays, etc. including Use and Waste of Formwork (if required), complete all as specified and as directed.

S&F Mild Steel Plain black sheet 2.0 mm thick in wall cladding,sign board incl round headed screws, clout nails or riveted and fixed to steel framing with plain 40mm lap joints with riveted or welded seams, incl binding or turnining up, mitred angles etc as required including writing of substation name and no and capacity of trandformer /pump motor /pump house etc as directed by Engr-in-Charge complete all as specified and directed.

M&L Rendering10mm thick in Cement Mortar 1:6 on Concrete Surfaces of wall , plastered surfaces finishing Fair and Even, complete all as specified and as directed including dismentling old one at UG SUMP.

S&F in replacement of Cast Iron sluice valves flanged ends stem of SS (AISI410) & Bronze (Gun Metal) working parts IS : 14846 both ends flanged with clamps and check nuts, operating wheel etc, rising type K506, class PN 1.6 including jointing materials connecting and testing complete all as specified and directed incl dismantling old one ..

150 mm Dia

200 mm Dia

300 mm Dia

S&F, connecting and testing in repair of Cast Iron foot Valves flanged ends/screw end ( to be fitted as per ground requirement ) swing type operation with rubber seat as per IS : 4038 single disc with all standard accessories and tested including replacement of nuts, bolts, washers, gaskets, packings etc complete all as specified and directed.

50 mm Dia

80 mm Dia

100 mm Dia

150 mm Dia

200 mm Dia

Supply and fixing of anodised aluminium frame and aluminium grill for ventilators / Vent Cowl of UG sump and OHT, partitions etc with one or more rebates including joining cleat for fixing etc including cleats and rubber gaskets complete all as required for fixing as specified and directed in cluding dismentling old one.

M&L for Wire netting of stainless steel wire 1.4mm dia fixed with tinned tacks of staples size of the mesh 20 mm complete al as required for fixing at Aliminium frame complete all as specified and directed including dismantling old one

Haasith constructions

Ms V.Prakash

POWER CONSTRUCTION COMPANY