CENTRAL GROUND WATER BOARD
State Profile
Ground Water Scenario of Arunachal Pradesh
Area (Sq.km) |
83,743 |
Rainfall |
3000 mm in 200 rainy days |
Total Districts / Blocks |
13 districts/ 59 Blocks |
Hydrogeology
The entire foothill belt running along the Himalayan front can be correlated to the “Bhabar belt” of Ganga basin with exception of some areas of Lohit and Tirap districts. Ground water occurs under unconfined to semi-confined conditions. In Namsai and Mino sub-divisions, the depth to water levels is essentially governed by topography. Sediments down to 106 meters below ground level (m.bgl) are predominantly sandy and discharge of tube wells ranges up to 160 m3/hr. Open wells in Namsai and Mino sub-division tap 3 to 5 m of saturated sand and yield up to 100 m3/day.
Dynamic Ground Water Resources |
|
Annual Replenishable Ground water Resource |
2.56 BCM |
Net Annual Ground Water Availability |
2.30 BCM |
Annual Ground Water Draft |
0.0008 BCM |
Stage of Ground Water Development |
0.04 % |
Ground Water Development & Management |
|
Over Exploited |
NIL |
Critical |
NIL |
Semi- critical |
NIL |
Ground Water User Maps |
8 Districts |
Artificial Recharge to Ground Water (AR) |
500 Check Dams, 1000 weirs, 1000 Gabion structures, 300 Development of springs, 600 RTRWH in Urban Areas |
AR schemes completed during IX Plan: 1 |
|
Enactment of Ground Water Bill to regulate and control the development of ground water:
In view of very low development of ground water, the State has not enacted any legislation for regulation of ground water.
Inclusion of Roof Top Rain Water Harvesting (RTRWH) in building by laws:
Building Bye-laws are being framed keeping provision for RWH as mandatory in Government Buildings. To be included.
Central Ground Water Authority
Areas Notified for Regulation for ground water development |
NIL |
Mass Awareness Programme (as on 31.03.2011) |
2 |
Water Management Training Programme (as on 31.03.2011) |
NIL |