(a) whether the Government have assessed the annual average rainfall in the country during the last three years;
(b) if so, the details thereof, year-wise and State-wise;
(c) the quantum of rain water being harvested and utilised for different purposes in the country; and
(d) the steps being taken by the Government to speed up work on rain harvesting system throughout the country?
THE MINISTER OF WATER RESOURCES
( DR.C.P. THAKUR )
(a) to (d) A statement is laid on the Table of the House.
Statement referred to in reply to Parts (a) to (d) of Starred
Question No.638 to be answered in the Lok Sabha on 10.05.2000
regarding Water Management.
India receives an average annual rainfall of about 4000
Billion Cubic Meter (BCM) . Out of this about 1869 BCM appears as
average annual flow in the various rivers of the country.
India Meteorological Department has divided the country into
35 meterological subdivisions. The yearwise annual average
rainfall for 35 subdivisions covering different states during the
period 1997-1999 is enclosed at Annex.
The utilisable surface water by conventional methods has
been assessed as 690 BCM. To harness available water resources
and augment water supplies, about 3600 large dams & reservoirs
and 250 barrages have been constructed. A total live storage
capacity of 177 BCM has been provided by 1995. An additional live
storage capacity of 75 BCM will be created on completion of the
dams, which are under various stages of construction. Proposals
to take up addititonal dams to create a live strorage of 132 BCM
are also under formulation / consideration. The replenishable
groundwater resources are of the order of 432 BCM out of which
about 154 BCM has been developed for use.
Government of India is also promoting Rainwater Harvesting
through Watershed Management Programme, Artificial Recharge of
Ground Water and Roof-top Rainwater Harvesting under the sector
reform project of Accelerated Rural Water Supply Programme under
the Ministry of Rural Development for which technical and
financial assistance is provided to the State Governments and
other implementing agencies. Central Ground Water Board has also
taken up pilot studies for artificial ground water recharge.
Actual utilisation for different purposes has not been
assessed however, the projected demand for the various uses in
the country as per the assessment made by Central Water
Commission is as under.
USE WATER DEMAND FOR 2000 (In billion cubic metre)ANNEX
Irrigation 630 Domestic 33 Industrialy 30 Energy 27 Others 30
Total 750
(in m.m)
Averag Actual Actual Actual Actual e Annual Annual Annual Annual Sl. Sub-division Annual 1996- 1997- 1998- Averag No. Normal 97 98 99 e Rainfa ll
1. Andaman & Nicobar 2909 3116 2387 2740 2748 Island
2. Arunachal Pradesh 2874 2946 2590 3498 3011
3. Assam and Meghalaya 2824 2660 2423 2841 2641
4. Nagaland, Mizoram, 1894 1591 1941 1535 1689 Manipur & Tripura
5. Sub-Himalayan West 2662 2528 2403 3236 2722 Bengal & Sikkim 6. Gangetic West Bengal 1430 1379 1706 1390 1492
7 Orissa 1477 1039 1545 1325 1303
8. Bihar Plateau 1309 1198 1697 1374 1423
9. Bihar Plains 1173 1110 1324 1352 1262 10 U.P. East 1020 1033 1068 1128 1076 11 Plains of U.P. West 889 927 892 1078 966 12 Hills of U.P. West 1659 1249 1521 1724 1498 13 Haryana, Chandigarh & 613 850 865 923 879 Delhi 14 Punjab 643 721 894 809 808 15 Himachal Pradesh 1327 1191 1360 1356 1302 16 Jammu and Kashmir 1004 1107 1192 716 1005 17 Rajasthan West 313 479 577 397 484 18 Rajasthan East 675 950 759 673 794 19 M.P. West 1011 1155 1135 950 1080 20 M.P. East 1311 1153 1325 1011 1163 21 Gujarat Region, Daman, 1101 1182 1408 1397 1329 Dadra & Nagar Haveli 22 Saurashtra,Kutch & Diu 576 478 638 750 622 23 Konkan and Goa 2990 2655 2896 3764 3105 24 Madhya Maharashtra 900 965 1051 1135 1050 25 Marathwada 840 844 824 1224 9