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Ground Water is a Precious National Resource - Preserve it, Protect it and Don't Pollute it.

State Profile
Ground Water Scenario of Karnataka

Area (


Rainfall (mm)


Total Districts / Talukas

30 Districts


The State is covered by peninsular gneisses, granites, schists, & basalts along with sedimentaries of Kaldagi and Bhima groups.  The recent alluvium is restricted to coastal areas and stream courses. The water bearing and yield characteristics in hard rock are primarily controlled by the extent of weathering and fracturing. In limestone areas, solution cavities impart secondary porosity. The yield of tube wells tapping hard rocks is as high as 50 m3/hr. The tube wells in sedimentaries can yield up to 15 m3/hr.

Dynamic Ground Water Resources (2011)

Annual Replenishable Ground water Resource

17.03 BCM

Net Annual Ground Water Availability

14.81 BCM

Annual Ground Water Draft

9.41 BCM

Stage of Ground Water Development

64 %

Ground Water Development & Management

Over Exploited

63 Talukas



Semi- critical

34 Talukas

Artificial Recharge to Ground Water (AR)


  • Area identified for AR: 74007 sq km
  • Volume of water to be harnessed: 11367 MCM
  • Volume of water to be harnessed through RTRWH:167.33 MCM
  • Feasible AR structures:
  • Sub surface dyke- 271
  • Percolation Tank- 10166
  • Check dams     - 59853
  • Point Recharge structures – 2695
  • RTRWH (H)  - 665000
  • RTRWH (G& I) - 35000


Ground Water Quality Problems


Districts affected (in part)

Salinity  (EC > 3000 µS/cm at 25 ° C)

Bagalkote, Bangalore-Rural, Bangalore-Urban, Belgaum, Bellary, Bijapur, Chamarajnagara, Chikballapur, Chikmagalur, Chitradurga, Dakshina Kannada, Davanagere, Dharwad, Gadag, Gulburga, Hassan, Haveri, Kodagu/ Coorg, Kolar, Koppal, Mandya, Mysore, Raichur, Ramanagara, Shimoga, Tumkur, Udupi, Uttara Kannada, Yadgir

Fluoride (>1.5 mg/l)

Bagalkot,  Bangalore Rural, Belgaum, Bellary, Bidar, Bijapur, Chamarajanagar, Chikkaballapur, Chikmagalur, Chitradurga,  Davanagere, Dharwad, Gadag, Gulburga, Hassan, Haveri, Kolar, Koppal, Mandya, Mysore, Raichur, Shimoga,Tumkur, U.Kannada

Iron (>1.0 mg/l)

Bagalkot,  Bangalore Rural,, Belgaum, Bellary, Bidar, Bijapur,  Chikmagalur, Chitradurga,  Dakshina Kannada, Davanagere, Gulburga, Hassan, Haveri, Kodagu, Kolar, Koppal, Mysore,Ramanagara, Raichur, Shimoga, Tumkur, Udupi, Uttar Kannada, Yadgir

Nitrate  (>45 mg/l)

Bagalkot, , Bangalore Urban, Bangalore Rural, Belgaum, Bellary, Bidar, Bijapur, Chamrajnagar, Chikkaballapur,Chikmagalur, Chitradurga,Dakshina Kannada,  Davanagere, Dharwad, Gadag, Gulburga, Hassan, Haveri, Kodagu/Coorg, Kolar, Koppal, Mandya, Mysore, Ramnagara, Raichur. Shimoga, Tumkur, Udupi, Uttar Kannada

Arsenic(above 0.05 mg/l)

Raichur  and Yadgir district

Central Ground Water Authority

Areas Notified for Regulation of ground water development
  • Badami Taluk, District Bagalkote
  • Bagalkote(P) Taluk, District Bagalkote
  • Anekal Taluk, District Bangalore (U)
  • Bangalore (N) Taluk, District Bangalore (U)
  • Bangalore (S) Taluk, District Bangalore (U)
  • Devanhalli Taluk, District Bangalore(R)
  • Dod Ballapur  Taluk, District Bangalore(R)
  • Hoskote Taluk, District Bangalore(R)
  • Nelamangala(P) Taluk, District Bangalore(R)
  • Ramdurg Taluk, District Belgaum
  • Raybag(P) Taluk, District Belgaum
  • Gadag(NC) Taluk, District Gadag
  • Bangarapet Taluk, District Kolar
  • Chik Ballapur Taluk, District Chikballapur
  • Chintamani Taluk, District Chikballapur
  • Gauribidanur Taluk, District Chikballapur
  • Gudibanda Taluk, District Chikballapur
  • Malur Taluk, District Kolar
  • Mulbagal Taluk, District Kolar
  • Sidlaghhatta Taluk, District Chikballapur
  • Koratagere(P) Taluk, District Tumkur
  • Madhugiri(P) Taluk, District Tumkur