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State Profile
Ground Water Scenario
Arunachal Pradesh
Area (Sq.km) |
83,743 |
Rainfall |
3000 mm in 200 rainy days |
Total Districts / Blocks |
13 districts/ 59 Blocks |
GROUND WATER MEDIUM (Hydrogeological Conditions)
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 meter below ground level (m. bgl) are predominantly sandy; and discharge of tubewells 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.
GROUND WATER EXPLORATION/SOURCES FINDINGS
Dynamic 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 % |
Developmental Monitoring |
Over Exploited |
NIL |
Critical |
NIL |
Semi- critical |
NIL |
Exploratory Tube wells Constructed (as on 31.03.2007) |
31 |
No. of Ground Water Observation Wells |
19 |
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:
To be enacted
Inclusion of Roof Top Rain Water Harvesting (RTRWH) in building by laws:
To be included.
Central Ground Water Authority
Areas Notified |
For Regulation for ground water development |
NIL |
For Registration of GW abstraction Structures |
NIL |
Mass Awareness Programmes (as on 31.03.2007) |
1 |
Water Management Training Programme (as on 31.03.2007) |
Nil |
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Ministry
of Water Resources