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Conservation of Water in Metro Stations

               Water conservation has been a key area of civil focus, especially due to high demand

               at station premises with leased commercial outlets such as kiosks, restaurants, and
               banks.
                   Rainwater  Harvesting  Systems  have  been  installed  at  all  metro  stations.  The

                   harvested  rainwater  is  treated  and  reused  for  station  utilities  during  the  rainy
                   season, reducing dependence on KWA supply.
                   Rainwater Recharge Pits have been constructed to improve groundwater levels in

                   urban areas around the stations.
                   Borewells  and  Tubewells  are  being  developed  at  high-consumption  stations  to
                   supplement supply during dry months and minimize recurring water bills.

               At  the  Muttom  Depot,  treated  water  from  ETP/STP  is  connected  to  the  irrigation
               system and is used for watering plants and landscaping. A similar arrangement exists
               for the depot staff quarters, promoting circular reuse and ecological sustainability.

               Noteworthy Interventions

               A. FRP Lining in Steel Roof Gutters

               Corroded  and  leaking  steel  gutters  at  selected  locations  were  strengthened  using
               FRP (Fibre Reinforced Plastic) linings.

                   This allowed repairs without dismantling existing gutters.
                   FRP offered a lightweight, corrosion-resistant, and durable solution, making it both

                   cost-effective and less disruptive to operations.
               B. Skylight Roof Replacement in OCC Building

               At  the  OCC  building  in  Muttom  Depot,  a  heavy  glass  skylight  broke  during  rainfall,
               highlighting a structural risk.
                   The  existing  glass  was  replaced  with  a  lightweight,  UV-resistant  polycarbonate

                   sheet, reducing the load on the supporting frames.
                   The change improved both safety and maintenance ease, while retaining natural

                   lighting functionality.
               Future Focus Areas


                   Rainwater Leakage Arresting: Identifying and trialling new sealing methods and
                   materials  to  tackle  recurring  leakage  challenges  more  effectively,  especially

                   during monsoon periods.
                   Sustainable  Replacement  Materials:  Exploring  green,  lightweight,  and

                   maintenance-friendly materials for civil upgrades across the network.
                   Digital  Condition  Tracking:  Enhancing  maintenance  data  recording  and
                   reporting  using  digital  platforms  for  better  planning,  accountability,  and  faster

                   response.
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