1. Central Ground Water Board,
Whether over development of groundwater is also responsible for its quality deterioration in India?
Arunangshu Mukherjee*, S Shekhar* and K C Naik#
*Scientist –D, #Member
Central Ground Water Board,
Faridabad , India

2. India’s drinking water security
With at least 85% of the rural population depending upon groundwater for their daily drinking water needs and nearly 50% of the urban share of water supply being groundwater-based, drinking water security of nearly a billion Indians is at potential risk on account of India’s groundwater crisis.
The fundamental basis for good groundwater management is a clear understanding of aquifers

3. Aquifers of India

5. <750

7. Groundwater level and development in India

8. AP & TELENGANA
1999
2010

9. CHHATISGARH 2014 2008 2011 2014 Groundwater level
Groundwater Stage of Development
Groundwater EC

10. Electrical Conductivity Maps of Chhattisgarh
1999
2005
2006
2007
0-500
0-500
500-1K
500-1K
1K-1.5K
1K-1.5K
1.5K-2.25K
1.5K-2.5K
0-500
500-1K
1K-2K
Electrical Conductivity Maps of Chhattisgarh
2K-3K
0-500
0-500
0-500
500-1K
500-1K
500-1K
1K-1.5K
1K-1.5K
1K-1.5K
1.5K-2K
1.5K-2K
1.5K-2K
2K-2.5K
2K-2.5K
2K-2.5K
>2.5K
2008
2010
2014

11. CONCLUSIONS
The gradually deteriorating quality of groundwater in certain patches within the country is observed.
It was found that largely the higher EC zones are corresponding with overdeveloped assessment units.
In the hot arid regions, the higher EC is due to soluble minerals but in other growing inland EC, except coastal zone may be attributed to over development.
Interestingly, it shows that in the eastern part of India neither over development nor higher EC exists in general.
The phenomenon may be due to gradual expose of deeper zones of aquifers to oxidation.
All fresh zones have to be observed carefully for further confirmation.

12. CONCLUSIONS
THANKS

13. >20
10-20