Sorry, you need to enable JavaScript to visit this website.
Sunday , 26th September 2021
Section: State-district-profile pages are not under access control

Mayiladuthurai District Profile

  • Mayiladuthurai district is bounded in the North by Cuddalore district, in the west by Thanjavur districts and in the south by Thiruvarur district and Karaikkal district in Pondicherry State and east by Bay of Bengal.
  • The District lies between 10º 57’ 00”N to 11º 26' 00”N Latitude, 79º 31' 00”E to 79º 55' 00”E Longitude and has an aerial extent of 1172 sq.km.

Physiography and Drainage

  • The entire Mayiladuthurai district is a plain terrain with the slope less than 1%. The topographical slope is towards east and southeast.
  • The total length of the coast in the east is 90 km.
  • The district area falls under river basin namely Cauvery sub basin.
  • The district is drained by river like Cauvery, Kollidam, Virasolanar, Uppanar
  • The district forms the delta part of river Cauvery.

Geology:

Rock Type Geological Formation
Sedimentary Rock Sand, Sandy Clay, Grey brown Sand, Marine Deposits

Rainfall:

The average annual rainfall and the 5 years rainfall collected from IMD, Chennai is as follows:

Actual Rainfall in mm Normal Rainfall in mm
2015 2016 2017 2018 2019
1747 661 1393.3 1079.8 1456.4 1393.3

Ground Water Level:

The Ground Water levels from the 26 number of observation wells of TWAD have been analysed for Post-Monsoon and Pre-Monsoon. 5 years average Ground water level in m Below Ground Level for pre and post monsoon is as follows:

Jan
2015

May
2015

Jan
2016

May
2016

Jan
2017

May
2017

Jan
2018

May
2018

Jan
2019

May
2019

5 Years
Pre Monsoon
Average

5Years
Post Monsoon
Average

5.7

7.8

5.0

8.9

8.7

12.2

6.0

9.4

5.6

9.6

9.6 6.2

Sustainability:

With a view to enhance the Sustainability of the drinking water sources, recharge structures are being implemented by TWAD Board under various State and Central Government assistances. The Recharge Structures implemented so far in district is as under.

Categorization of Firkas:

The status of Categorization of Firkas as of March 2017 for the District in is shown below.

Categorisation based on Extraction (as on 2017) No. of Firkas Firkas
Over Exploited (>100%) 13 Kuttalam, Madhanam, Manganallur, Mayiladuthurai, Melaiyur, Palaiyur, Pattavarthi, Puthur, Sembanarkoil, Sirkali, Thiruvengadu, Thiruvilaiyattam, Vaitheeswarankoil
Critical (90%-100%) 0 -
Semi Critical (70%-90%) 0 -
Safe (<70%) 1 Manalmedu
Others (Poor& Saline) 1 Thillayadi
Total 15