3/6/2017 Home TamilNadu Map Tiruchirapalli District Profile Print TIRUCHIRAPALLI DISTRICT PROFILE • Tiruchirappalli district is one of the inland districts in the State and lies in the Central Part of the State. • Tiruchirappalli district is one of the inland districts in the State and lies in the Central Part of the State. • The District lies between 10º 17' to 11º 25'N Latitude, 78º 09'to 79º 03'E Longitude and has an areal extent of 4511 sq.km. • There are 14 Blocks, 404 Villages and 3340 Habitations in the District. Physiography and Drainage: • Most of the District is a pediplain with a general slope towards the central part where River Cauvery and Coleroon flow. • The entire district falls in Cauvery Basin and drained by River Cauvery and its tributaries like Ayyar, Uppar, and partly by Maruthaiyar, Ponnanaiyar, Koraiyar and partly by Vellar River System. • There are small residual hills scattered in western and southern part of the district, prominent among them, is Rock Fort hill, located in the heart of Tiruchirappalli town. Rainfall: The average annual rainfall and the 5 years rainfall collected from IMD, Chennai is as follows: Acutal Rainfall in mm Normal Rainfall in mm 2011 2012 2013 2014 2015 806.90 626.90 522.90 535.70 862.0 818.0 Geology: Rock Type Geological Formation Charnockite, Gneiss, Granite, Hard Rock 95% Quartzite, Pegmatite, Sandstone, Sedimentary Rock 5% Shale, Limestone, Alluvium Hydrogeology: Type of Aquifer Water Table to Semi confined conditions Aquifer parameters Alluvium Cretaceous Hard rock Well yield in lpm 10 ­ 20 1.1 ­3.5 1 ­ 2 Transmissivity (T)m2/day 49 ­ 216 33 ­ 782 32 ­ 80 Permeability (K)(m/day)) 2 ­ 5 10 ­ 66 5 ­ 10 Specific capacity. (lpm/md) 7.2 0.3 ­ 2.56 0.8 ­ 2.5 Depth of Water level 3 m to 15m Ground Water Level:: The Ground Water levels from the 45 number of observation wells of TWAD have been analysed for Post­Monsoon and Pre­ Monsoon. Since 1991 average Ground water level in m Below Ground Level for pre and post monsoon is as follows: 1/4 3/6/2017 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 is as under. Recharge Structures Roof Check Percolation Recharge Recharge Defunct Bore Recharge Hydro Others Ooranies top Total Dam Pond Pit Trench well Recharge Shaft Fracturing RWH 264 3 1 3 5 3 28 307 Groundwater Potential as on March 2011 (as per CGWB): Net Groundwater Availability (in MCM) 725.60 Existing Gross Groundwater draft for all users (in MCM) 571.15 Stage of Groundwater development (in %) 79 % Categorization of District Semi Critical Categorization of Firkas: The status of Categorization of firkas as of March 2011 for the District is shown below. Categorisation based on Extraction (as on 2011) No. of Firkas Firkas Kannanur, Kariyamanickam, Koppampatti, Manapparai, Manikandam, Marungapuri, Pannappatti, Pulivalam, Over Exploited (>100%) 15 Sengattuppatti, Thathaiyangarpettai, Thumbalam, Thuraiyur, V.Periyapatti, Vaiyampatti, Valaieduppu. Critical (90%­100%) 1 Peruvalpur. Semi Critical (70%­90%) 7 Eragudi, Kattuputhur, Mannachanallur, Musiri, Thottiyam, Thuvarangurichi, 2/4 3/6/2017 Uppiliyapuram. Aamur, Anbil, Andanallur, Kallakkudi, Kulumani, Lalgudi, Navalpattu, Pullambadi, Sirugambur, Somarasanpettai, Srirangam, Safe (<70%) 17 Tiruverumbur, Trichy north, Trichy south, Valadi, Valandau, Vengur, Arakonam(North), Mambakkam, Pudurnadu. Others (Poor& Saline) ­ Total 40 Water supply status as on 1.4.2016 Rural Habitations Total No. of Rural Habitations: 3340 Partially covered 229 (10­39 lpcd ) Fully covered 3111 (40 lpcd and above) Urban Towns (Water supply status ­ Sep 2016) S.NO Name of Towns Population Present water supply level LPCD Corporation 1 Tiruchirappalli 847387 136 Municipalities 1 Thuraiyur 32439 90 2 Manapparai 40510 85 3 Thuvakudi 38887 89 Town Panchayats 1 Balakrishnampatti 8635 78 2 Kallakudi 11604 74 3 Kattuputhur 10933 73 4 Koothappar 15943 90 5 Lalgudi 23740 115 6 Manachanallur 25931 70 7 Mettupalayam 7681 85 8 Musiri 28727 70 9 Ponnampatti 12167 70 10 Pullampadi 10241 73 11 Puvalur 7905 73 12 S. Kannanur 13073 86 13 Sirugamani 10743 91 3/4 3/6/2017 14 Thathaiyangarpet 12980 79 15 Thottiyam 14909 90 16 Uppiliapuram 7705 72 4/4.