AT A GLANCE
Location Climate Land Use
Geology HydroGeology River Basins
Ground Water HydrologyProject Feasibility

GROUND WATER EXPLORATION

Total area covered under exploration  1,61,515 sq.km  
Total percentage of coverage    94  percent
Number of exploratory wells drilled        714
Number of observation wells drilled   314  
Number of Piezometers drilled               56  
(b)       Depth range        30 to 302  m
(c)       Discharge                         1 to  22  lps  
(d)       Transmissivity  1 to 150  m2/day  
(e)       Storativity    2.5 x 10-3 to 6.5 x 10-4  

GROUND WATER RESOURCES OF KARNATAKA
 (a)  Ground Water Resources and Irrigation potential of Karnataka (AS  on  March 1998-Provisional)

Annual Natural Recharge                        1.6175 (Mha. M)  
Provision for drinking and industrial use     0.2418 (Mha. M)  
Available recharge                                1.3757 (Mha. M)  
Utilisable recharge                                1.3265 (Mha. M)  
Net draft                                            0.44198 (Mha. M)  
Balance GW available                            0.93372 (Mha. M)  
Utilisable irrigation potential                   2.44268 (Mha. M) for development
Stage of development in percentage.              33 %  

(b) Grey (Semi-Critical), Dark (Critical) and  Over- Exploited blocks in Karnataka 
(As
on March 1998-Provisional)  

Sl.
No

District

Grey Blocks

Dark Blocks

Over Exploited Blocks

1. 2. 3. 4. 5.
1.

Bangalore

1. Ramanagaram  
2.Doddaballapur

1.Bangalore(S)  
2.Chennapatna

1. Anekal  
2. Bangalore (N)  
3.Devana halli  
4.Hoskote

2.

Belgaum

1. Chikodi  
2. Hukkeri

1. Raibagh

 

3.

Bijapur

1. Sindhigi

1.Indi

 

4.

Chitradurga

1. Molakalmur

----

 

5.

Dakshina  
Kannada

1. Bantwal  
2. Sulya

--- -

 

6.

 

Kolar

1.Chikballapura  
2.Gauribidanur  
3.Sidlaghatta  

1.Mulbagal

1.Kolar  
2.Malur  

7.

Mysore

 

1. Kollegal

 

8.

Tumkur

1.Gubbi  
2.Madhugiri

1. Tiptur  
2. Tumkur

 

 

13 Blocks

8 Blocks

6 Blocks