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State Profile
Ground Water Scenario
Manipur
Area (Sq.km) |
22,327 |
Physiography |
Four major units
- Hills
- Eroded hills with flat land
- Intermontane valleys
- Alluvial plains
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Drainage |
Mainly drained by Meghna and Chindwin river and its tributaries. |
Rainfall (mm) |
1927 |
Total Districts / Blocks |
9 districts 34 Blocks, 29 GW assessment Units |
GROUND WATER MEDIUM (Hydrogeological Conditions)
The Manipur valley is underlain by a thin veneer of alluvial deposits which is largely clayey in nature, underlain by rocks of Tertiary age. Ground water occurs under un-confined and confined conditions. Since the upper formations are mainly silty and clayey, open wells have poor yield prospects. However the deeper zone, consisting of sand stones of Tertiary age, forms good aquifers which are under confined conditions, Autoflow conditions are observed in Imphal where the yield of the tubewells vary from 0.5 to 4 m3/hr. The water bearing formations are not extensive. The quality of ground water is generally good.
GROUND WATER EXPLORATION/SOURCES FINDINGS
Dynamic Resources |
Annual Replenishable Ground water Resource |
0.38 BCM |
Net Annual Ground Water Availability |
0.34 BCM |
Annual Ground Water Draft |
0.002 BCM |
Stage of Ground Water Development |
0.65 % |
Developmental Monitoring |
Over Exploited |
NIL |
Critical |
NIL |
Semi- critical |
NIL |
Exploratory Tube wells Constructed (as on 31.03.2007) |
25 |
No. of ground water observation wells |
25 |
Ground water user maps |
6 districts |
Artificial Recharge to Ground Water (AR) |
- Feasible AR structures: 300 check dams, 500 weirs, 500 gabion structures, 300 rooftop harvesting, 150 development of springs
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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) |
NIL |
Water Management Training Programme (as on 31.03.2007) |
NIL |
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Ministry
of Water Resources