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Metrowater Operational Area


Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB or Metrowater) was established in 1978 under an Act of Tamil Nadu (Act 28) as a statutory Body for exclusively attending to the growing needs of and for planned development and appropriate regulation of water supply and sewerage services in the Chennai Metropolitan Area with particular reference to the protection of public health and for all matters connected therewith or incidental thereto. From 1.8.1978, the water supply and sewerage services in Chennai City were taken over by the Board (CMWSSB) from the Corporation of Chennai with assets and liabilities connected with water supply and sewerage services. The assets and liabilities of Ground Water Division of PWD, responsible for water supply to industries in Manali belt were also taken over by the CMWSSB.


Chennai City Network Map (Click here)

2.1. Chennai Metropolitan Area (CMA), comprising of Chennai city and contiguous area around was notified in 1974. It extends over 1,189 sq. km. and includes Chennai City Corporation area, 16 Municipalities, 20 Town Panchayats, 1 Cantonment and 214 Village Panchayats spread over in 10 Panchayat Unions in Thiruvallur and Kancheepuram Districts. The present Chennai City Corporation Area is 176 sq. km.

2.2. Chennai (earlier called as Madras) is the Fourth largest Metropolitan city in India situated on the shores of the Bay of Bengal and is the capital of Tamil Nadu State. Chennai Metropolis lies in the latitude between 12o50’49” and 13o17'24” and longitude between 79o59'53” and 80o20'12”. The land is a Flat Coastal plain. The topography of Chennai city is extremely flat with average slope of less than 0.7m per km.

2.3. Three rivers viz. Kosathalaiyar, Cooum and Adyar pass through Chennai Metropolitan Area and these rivers are placid and meander on their way to the sea (Bay of Bengal). Buckingham Canal, a man made canal is another large waterway which runs North-South through this Metropolis.

2.4. Chennai is a major Transportation hub for road, rail, air and sea transport connecting major cities-inland and abroad.

2.5. Chennai is one of the major educational centres in India with a number of colleges and research institutions.

2.6. As per the 2001 census, the population of Chennai city was 43.44 lakhs (4.344 million) and the total population in CMA was 70.41 lakhs (7.041 million). The present population of Chennai City as on Mar'2010 is estimated as 55 lakhs (5.5 million).

2.7. Though the operation of CMWSSB is limited to City Corporation area in general, the Board is also extending its services to the surrounding urban local bodies (about 7.88 in extension areas and Manali New Town) and has already initiated measures to provide services for the entire Chennai Metropolitan Area (CMA)