Per Capita Water Availability Down 70% in 60 Years - FACTLY

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05/06/2016 Per Capita Water Availability down 70% in 60 years - FACTLY

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BY RAKESH DUBBUDUON APRIL 23, 2016

Per CapitaWater Availability down 70% in 60 years

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Various parts of the country are facing a severe water crisis. Data reveals that the crisis is getting

worse by the day. The per capita water availabilityin the country has come down by 70 in 60

years from 1951 to 2011. Even the 2011 survey by the Central Ground Water Board indicates that

ground water is over exploited in one out of every six assessed units.

Various parts of the country are reeling under a severe drought and a water crisis. Data also reveals

that the situationis getting worse by the day. The per capita water availability in the country has

come down 70% from 1951 to 2011, in a span of 60 years. While growth of population is one of the

reasons for this, the over exploitation of ground water coupled with lack of harvesting is making

matters worse.

Requirement would reach 1447 BCM by 2050

The average annual water availabilityin the country has been assessed as 1869 billion cubic meters

(BCM). The total water requirementfor various uses like agriculture, industrial and domestic uses

etc. in the country has been assessed by the Standing Sub-Committee for Assessment of Availability

and Requirement of Water for Diverse Uses in the Country to be about 813 BCM, 1093 BCM, and

1447 BCM by the year 2010, 2025 and 2050 respectively. However, the National Commission for

Integrated Water resources Development has assessed that with achievement of the desired level of

eciency, the water requirement by the year 2010, 2025 and 2050 will be about 710 BCM, 843 BCM

and 1180 BCM respectively. Bulk of this requirement would be for irrigation. As per the Central

Water Commission, only 1123 BCM of water is utilizable out of the available water including surface

and ground water resources.

Per Capita Water Availability in 2011 is 1545 Cubic Meters

The per capita water availabilityin the country is reducing due to increase in population. The

average annual per capita availability of water taking into consideration the population in various

census has come down 70% from 1951 to 2011, in a span of 60 years. The per capita availability of

water as per 1951 census was 5177 cubic meters. This is down to 1545 cubic meters as per 2011

census. As per the 2001 census, it was 1816 cubic meters. It has continuously decreased owing to

the increase in population.

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What is an over exploited area?

Central Ground Water Board (CGWB) categorizesvarious assessed units into Over-exploited, Critical

etc based on the stage of ground water development and the long-term trend of pre- and post-monsoon

groundwater levels. The stage of ground water development is a ratio of Annual Ground Water Draft

and Net Annual Ground Water Availability in percentage. Present stage of ground water

development in the country is 58%. The following are the four categories as dened by CGWB based

on the criteria mentioned above

One in every Six assessed blocks is over exploited in ground water

The latest assessmentof Dynamic Ground Water Resources was carried out jointly by Central

Ground Water Board (CGWB) and the State Governments in 2011. Out of 6607 assessed units

(Blocks/ Mandals/ Talukas) in the Country, 1071 units falling in 16 States and 2 UTs have been

categorized as Over-Exploited. 217 assessed units are Critical and 697 are Semi-Critical. In other

words, one out of every six assessed units is over exploited while 3 out of every 10 assessed units

are not safe. Overall, 30% of the assessed units are in over-exploited, critical or semi critical state.

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Delhi & Rajasthan at the top of Ground Water Exploitation

Within the states, 92.6% of the assessed units in Delhi are in over-exploited, critical or semi critical

state. Rajasthan is a close second with 88.9% of the assessed units in such a state. In both Punjab

and Haryana, more than 80% of the assessed units are in such a state. More than 30% of the

assessed units are not in a safe state in 10 of the states. In Bihar, only 2.1% of the assessed units are

in such a state while in Odisha, all the 314 assessed units were found to be safe.

Featured Image: By Daniel Bachhuber

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JUNE 4, 2016

The history of Service Tax

from 5% to 15%

0

JUNE 2, 2016

More than 700 Black Spots

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Highways, most on NH 2

1

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the Interest Subsidy on

Educational Loan from Tamil

Nadu & Kerala

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Per Capita Water Availability Down 70% in 60 Years - FACTLY

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