SPECIAL REPAIR OF WATER SUPPLY SYSTEM AT LOWER MARATHA GROUND 18 KUMAON UNDER GE TAWANG.

Amount

Excavation in trenches not exceeding 1.5m in width and n. exc 1.5m depth for taking out and laying PPR pipes and getting out in hard/dense soil complete all as specified and directed.

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

Removing excavated surplus soil not exceeding 50m and depositing where directed at a level not exc 1.5m above the starting points in soil complete all as specified and directed.

Taking up GI/ PP-R pipe of undermentioned sizes with all accessoreis complete all as specified and directed :-

4.(a) 25mm dia 32 mm dia

4.(b) 40 mm dia to 50 mm dia

S & F 3- layer PP-R Polypropylene random copolymer) pipes of following sizes ISI marked, IS-15801 SDR 7.4 (PN 10) & SDR 11 UV stablised and inner antimicrobial and outer UV stabilized fusion welded having thermal stability for hot & cold water supply all PP-R plain brass threaded polypropylene random fitting laid in trenches /walls/cellings or laying in floors incl fitting and fixture complete all as specified and directed :-

8.(a) 25 mm dia

8.(b) 32 mm dia

8.(c) 40 mm dia

8.(d) 50 mm dia

8.(e) 63 mm dia

S & F in replacement of PPR gate valves (brass insert) of under mentioned sizes including cutting and inserting in existing pipe or fixing in new laid pipe with required fittings and fixtures complete all as specified and directed

14.(a) 25 mm dia

14.(b) 32 mm dia

14.(c) 40 mm dia

14.(d) 50 mm dia

14.(e) 63 mm dia

Material and labour for brick masonary valve chamber of the following sizes including necessary excavation, PCC foundation, brick work, plastering and MS sheet cover of 6 mm thick including locking arrangement with two coats of red oxide primer and one coat of synthetic enamel paint of approved colour complete all as specified and directed of the folloiwng sizes: -

20.(a) 600 x 600 x 600 MM

20.(b) 900 x 900 x 900 MM

M & L for PCC 1:4:8 type D2 (using 40mm graded aggregate) as in foundation filling and mass concrete etc.complete all as specified and directed

M & L for PCC 1:3:6 type C1 (20mm graded aggregate) precast cement concrete block masonary with solid blocks exc. 10cm in width and setting in CM 1:4 etc complete all as specified and directed

S & F ball valves high pressure of PTMT with epoxy coated aluminium rod & highdensity plastic ball screwed for iron pipeand fixed. (Minimum weight 20 mm - 210 gms . / 25mm-455gms/ 40mm- 690 gms) complete all as specified and directed of undermentioned sizes :-

25.(a) 25 mm dia

25.(b) 32 mm dia

S & F of 2000 ltr capacity rotational moulded polethelene water storage tank (cylindrical vertical with closed up) of hoisted & fioxed in position complete all as specified and directed.

S & F of 1000 ltr capacity rotational moulded polethelene water storage tank (cylindrical vertical with closed up) of hoisted & fioxed in position complete all as specified and directed.

S & F of 750 ltr capacity rotational moulded polethelene water storage tank (cylindrical vertical with closed up) of hoisted & fioxed in position complete all as specified and directed.

S & F of 500 ltr capacity rotational moulded polethelene water storage tank (cylindrical vertical with closed up) of hoisted & fixed in position complete all as specified and directed.

M & L for rendering 10mm thich on fair faces of brick work or concrete surface cement Plaster in cement mortor 1:4 with using water proofing for above ground water sump complete all as specified and directed.

M/S GOLANG CONSTRUCTION CO.

M/S GLOBAL ROYAL CONSTRUCTION

M/ S N T ENTERPRISES

M/S L G BUILDERS

M/S RINCHIN DORJEE CONSTRUCTION

SHAMBHALA TRADERS

M/S RHEGON CONSTRUCTION