CENTRAL GROUND WATER BOARD
State Profile
Ground Water Scenario of Maharashtra
Area (Sq.km) |
3,07,713 |
Rainfall (mm) |
1433 |
Total Districts / Taluks |
35 Districts |
Hydrogeology
About 85% of the State is covered by Deccan basalts whereas the rest of the State is covered by Quaternary alluvium, Gondwanas, Cuddapahs, Kaladgis, Vindhyans, Dharwars and Archaeans. Based on the hydrogeological properties of different rock formations, the State can be divided into three major groups namely Unconsolidated, Semi-consolidated and Consolidated groups. The yield of dug wells in Deccan Trap varies from 0.2 to 30 m3/hr whereas in Vindhyans, Cuddapahs and Kaladgi, it varies from 1.12-10 m3/hr. In Archaean, yield is just 3-4 m3/hr. In the semi consolidated formations, which consists of coastal Sedimentaries, Intra-trapeans and Gondwanas, the dugwells yield between 6-12m3/hr. In unconsolidated formations, the dug wells yield between 0.5-20m3/hr.
Dynamic Ground Water Resources (2011) |
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Annual Replenishable Ground water Resource |
33.95 BCM |
|
Net Annual Ground Water Availability |
32.15 BCM |
|
Annual Ground Water Draft |
17.18 BCM |
|
Stage of Ground Water Development |
53% |
|
Ground Water Development & Management |
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Over Exploited |
10 Talukas |
|
Critical |
2 Taluka |
|
Semi- critical |
16 Talukas |
|
Artificial Recharge to Ground Water (AR) |
|
|
Ground Water Quality Problems |
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Contaminants |
Districts affected (in part) |
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Salinity (EC > 3000 µS/cm at 25 ° C) |
Amravati, Akola, Bhandara, Buldhana, Chandrapur, Dhule, Jalna, Mumbai, Nashik, Pune, Raigad, Sangli, Wardha, Thane, UT of DNH |
|
Fluoride (>1.5 mg/l) |
Amravati, Beed, Chandrapur, Bhandara, Dhule, Gadchiroli, Gondia, Jalna, Nagpur, Nanded, Ratnagiri, Sindhudurg, Yavatmal |
|
Iron (>1.0 mg/l) |
Ahmednagar, Amravati, Beed, Buldana, Chandrapur, Dhule, Gadchiroli, Jalna, Kohlapur, Latur, Nandurbar, Nashik, Osmanabad, Parbhani, Ratnagiri, Satara, Thane, Wardha, Washim, Yavatmal |
|
Nitrate (>45 mg/l) |
Ahmednagar, Akola, Aurangabad, Beed |
Central Ground Water Authority
Areas Notified for Regulation of ground water development |
NIL |