CENTRAL GROUND WATER BOARD
State Profile
Ground Water Scenario of Gujarat
Area (Sq.km) |
1,96,024 |
Rainfall (mm) |
1243 |
Total Districts / Talukas |
33 Districts |
Hydrogeology
The diverse terrain conditions have given rise to different ground water situations in the State. The rock formations ranging in age from Archaean to recent include gneisses, schists, phyllites, intrusive, medium to coarse grained sandstones, basalts and recent alluvium. The high relief area in the eastern and north eastern part occupied by Archaean and Deccan Trap have steep gradient allowing high run-off and therefore have little groundwater potential. The yield of wells in these formations range from 5-10m3/hr. The yield in sandstones varies from 50 to 170 m3/hr. The yield of wells tapping Quaternary alluvium in Cambay basin ranges between 75-150m3/hr. There are five major aquifers in alluvial sediments out of which the top one has dried up due to over exploitation.
Dynamic Ground Water Resources (2011) |
|
Annual Replenishable Ground water Resource |
18.57 BCM |
Net Annual Ground Water Availability |
17.59 BCM |
Annual Ground Water Draft |
11.86 BCM |
Stage of Ground Water Development |
67% |
Ground Water Development & Management |
|
Over Exploited |
24 Talukas |
Critical |
5 Talukas |
Semi- critical |
13 Talukas |
Artificial Recharge to Ground Water (AR)
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Ground Water Quality Problems |
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Contaminants |
Districts affected (in part) |
Salinity (EC > 3000 µS/cm at 25 ° C) |
Ahmedabad, Amreli, Anand, Banaskantha, Bharuch, Bhavnagar, Dahod, Jamnagar, Junagadh, Kachchh, Kheda, Mahesana, Navsari, Patan, Porbandar, Rajkot, Sabarkantha, Surat, Surendranagar, Vadodara, Narmada |
Fluoride (>1.5 mg/l) |
Ahmedabad, Amreli, Anand, Banaskantha, Bharuch, Bhavnagar, Dahod, Junagadh, Kachchh, Mehesana, Narmada, Panchmahals, Patan, Porbandar, Rajkot, Sabarkantha, Surat, Surendranagar, Vadodara |
Iron (>1.0 mg/l) |
Ahmedabad, Banaskantha, Bhavnagar, Kachchh, MehesanaNarmada, |
Nitrate (>45 mg/l) |
Ahmedabad, Amreli, Anand, Banaskantha, Bharuch, Bhavnagar, Dahod, Jamnagar, Junagadh, Kachchh, Kheda, Mehesana, Narmada, Navsari, Panchmahals, Patan, Porbandar, Rajkot, Sabarkantha, Surat, Surendranagar, Vadodara |
Central Ground Water Authority
Areas Notified for Regulation of ground water development |
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