Geospatial Themes – Kerala Water Authority

A geographic information system (GIS), an important tool, is just one of the many tools needed to supply managers with the information required to make decisions that will have a significant impact on the utilities’ ability to provide the services demanded by their customers.

GIS-based Optimal Sites Selection for a Sewage Treatment Plant



Conventional method of site selection of Sewage Treatment Plant in the planning stage involves collection of topographical, environmental, economic & sociopolitical data and its analysis, which is time consuming, laborious, and expensive.


Geographic Information System (GIS) coupled with Remote Sensing Technologies (RS) can be effectively used to identify appropriate locations of Sewage Treatment Plants with acceptable accuracy in the planning stage.


  • Fast – Takes only 6% of time when compared to traditional method.
  • Less laborious – Needs only 2% of personnel when compared to normal method.
  • Inexpensive – Incurs only 6% cost when compared to conventional method.
  • Analysis Based on Latest Data – Uses latest data available in open-source platform.
  • Alternative Sites – Most appropriate site can be selected by exploring alternative sites.
  • Better & Faster Decision Making.


Even though field validation is a must, GIS based STP site selection is an innovative tool in the arsenal of planners for creating better sustainable development solutions.

Spatial data is vital to Kerala Water Authority’s (KWA) water distribution system management. Geospatial solution will help to keep track of data related to all aspects of the organization including Network assets, Operation & Maintenance, customers, and financial records.


The purpose of the establishing an GIS cell is to enable the Kerala Water Authority to prepare, update and manage the Water distribution assets and related resources in a common repository. This would help KWA in planning, operational and developmental decision making, Asset management, Work Order and Request Management, Reporting etc

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