Storage deficient in the Indus and Mahi basins and highly deficient in the Sabarmati
Live storage in India’s reservoirs increased due to heavy rains in several parts of the country in the last week. The country’s 143 major reservoirs had live storage of 93.48 BCM (billion cubic metres), or 68.83 per cent of the total capacity of the reservoirs, according to data released by the Central Water Commission (CWC) July 21, 2022.
The live storage was 48.95 BCM, 63.65 BCM and 71.1 BCM on June 30, July 7 and July 14, according to the CWC.
The live storage in these reservoirs for the corresponding period last year was 65.26 BCM and the average of last 10 years live storage was 60.129 BCM.
Thus, the live storage available in 143 reservoirs according to this week’s CWC bulletin is 143 per cent of the live storage of corresponding period of last year and 155 per cent of storage of the average of the last ten years.
The number of reservoirs having storage more than last year is 42. Reservoirs having storage more than average in the last 10 years are 73.
The number of reservoirs having storage less than or equal to 20 per cent with respect to last year is 17 and having storage less than or equal to 20 per cent with reference to the average of the last 10 years is eight.
The number of reservoirs having storage less than or equal to 50 per cent with respect to last year is 41 and those having storage less than or equal to 50 per cent with reference to the average of last ten years is 23.
Seven states have better storage in percentage than last year for the corresponding period. They are Himachal Pradesh, Rajasthan, Nagaland, Bihar, Madhya Pradesh, Andhra Pradesh and Tamil Nadu.
One state which has equal storage in percentage against last year for the corresponding period is Punjab.
States having less storage than last year for the corresponding period are Jharkhand, Odisha, West Bengal, Tripura, Gujarat, Maharashtra, Uttar Pradesh, Uttarakhand, Chhattisgarh, Andhra Pradesh, Telangana, Karnataka and Kerala.
Better-than-normal storage is available in the Ganga, Tapi, the rivers of Kutch, Godavari, Krishna and Cauvery and neighbouring east flowing rivers, according to data in the July 21 bulletin.
There is close-to-normal storage in the Subarnarekha, Narmada, Mahanadi and the neighbouring east flowing rivers and west flowing rivers of south India. The storage is deficient in the Indus and Mahi basins and highly deficient in the Sabarmati.
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