Operation and maintenance of CWSS to 756 Rural habitations in K Paramathy and Aravakurichi Unions of Karur District including Repairs Rectification works and supply of Chemicals for the period 2 months from 01 02 2026 to 31 03 2026

Vide separate sheets attached.

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Operation and Maintenance of CWSS

Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Part - VI, carrying out the O&M as per standard operating procedures, Acts and rules in force etc., complete and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity . 59 x 12.908 MLD = 761.572 MLD

Attending Leaks in the pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.

150 DI K7 CL

350 DI K7 CL

250mm OPVC-12.5KSC

450 mm DI K 7 Pipes

400 mm DI K 7 Pipes

Proposed Pipes

300 DI K7 CL

63 HDPE PN6

63 HDPE PN 8

75 HDPE PN 6

75 HDPE PN 8

90 HDPE PN 6

90 HDPE PN 8

110 HDPE PN 6

140 HDPE PN 6

160 HDPE PN 6

160mm OPVC-12.5KSC

200mm OPVC-12.5KSC

Existing Pipes

63 PVC 4 KSC

75 PVC 4 KSC

90 PVC 4 KSC

90 PVC 6 KSC

200 HDPE PN 10

110 PVC 4 KSC

110 HDPE PN 8

110mm OPVC-12.5KSC

140 PVC 4 KSC

Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.

Collection Sump & BS - 2.55 LL

Collector Well - 6 m Dia

Infiltration Well - 3.50 m Dia

Collection Sump - 2.15 LL

Collection Sump - 5.90 LL

Booster Station - 3.35 LL

Collector well - 6 m Dia

Sump Capacity - K.Paramathi

Sump - Aravakkuruchi

Rewinding of Motors in pumping stations in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete (after deducting the cost of scraps) as specified in Clause 2.8 of General conditions of Contract Part II.

Reparing and rewinding of 1 HP OWS pumpset

Reparing and rewinding of 2 HP OWS pumpset

Reparing and rewinding of 3 HP OWS pumpset

Reparing and rewinding of 4 HP OWS pumpset

Reparing and rewinding of 5 HP OWS pumpset

Reparing and rewinding of 6 HP OWS pumpset

Reparing and rewinding of 7.5HP OWS pumpset

Reparing and rewinding of 10HP OWS pumpset

Reparing and rewinding of 12.5HP OWS pumpset

Reparing and rewinding of 15HP OWS pumpset

Reparing and rewinding of 17.5HP OWS pumpset

Reparing and rewinding of 20HP OWS pumpset

Reparing and rewinding of 25HP OWS pumpset

Reparing and rewinding of 40HP OWS pumpset

Reparing and rewinding of 65 HP HSC pumpset

Reparing and rewinding of 70 HP HSC pumpset

Reparing and rewinding of 40 HP HSC pumpset

Cost of Chemical

Supply and delivery of Stable Bleaching Powder as per Is Specification 1065/ 1989 and as amended from time to time for Grade I for sump at K.Paramathy and Aravakurichi union of Karur District in TWAD Board, and to delivery at anywhere in Karur District including loading, freight, unloading, stacking transit, insurance and all other incidental charges.(for the period from 01.02.2026 to 31.03.2026)

Supply and delivery of Stable Liquid Chlorine as per Is Specification 1065/ 1989 and as amended from time to time for Grade I for sump at K.Paramathy and Aravakurichi union of Karur District in TWAD Board, and to delivery at anywhere in Karur District including loading, freight, unloading, stacking transit, insurance and all other incidental charges.(for the period from 01.02.2026 to 31.03.2026)

Add GST @ 18% on Basic Value

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