The commission said that "the total live storage available is 41.705 BCM, equating to 23 percent of the total capacity".
Krishna river near Srisailam dam. (Wikimedia)
The water level of the country’s 150 main reservoirs has dropped to 23 percent and is also 77 percent less than last year’s levels at this time, according to Central Water Commission (CWC) data.
Last week, the live storage of these reservoirs was at 24 percent.
The present storage is merely 77 percent of last year’s levels and 94 percent of the normal storage, CWC data stated.
In its latest weekly bulletin, released on Friday, 31 May, the commission said that “the total live storage available is 41.705 billion cubic metres (BCM), equating to 23 percent of the total capacity”.
“This is a significant decrease from the 53.832 BCM recorded during the same period last year and the normal storage level of 44.511 BCM. Consequently, the current storage is only 77 percent of last year’s levels and 94 percent of the normal storage,” the commission said.
The 150 main reservoirs monitored by the CWC have a combined live storage capacity of 178.784 BCM, which is around 69.35 percent of the total storage capacity created in the country.
Ten of the 150 reservoirs are located in the northern region — Himachal Pradesh, Punjab and Rajasthan —and have a live storage capacity of 19.663 BCM. This has dropped to 5.864 BCM (30 percent of total capacity), according to the CWC bulletin for the week 16 to 31 May.
Last year, during the corresponding period, storage was at 38 percent. The normal storage at this time of the year is 31 percent.
In the eastern region — Assam, Jharkhand, Odisha, West Bengal, Tripura, Nagaland and Bihar — there are 23 reservoirs with a total live storage capacity of 20.430 BCM. The available storage is 5.645 BCM, or 28 percent of the total capacity, the commission said.
In the corresponding period last year, it was 25 percent. The normal storage is 26 percent.
The western region — Gujarat and Maharashtra — has 49 reservoirs with a total live storage capacity of 37.130 BCM. The current live storage is 8.833 BCM, or 24 percent of the total capacity. This is a decrease from last year’s 28 percent but an improvement over the normal storage of 23 percent.
The central region — Uttar Pradesh, Uttarakhand, Madhya Pradesh and Chhattisgarh — has 26 reservoirs with a total live storage capacity of 48.227 BCM.
The storage available now is 14.046 BCM, or 29.1 percent of the total capacity. Last year, the storage was 37 percent. The normal storage is 29.4 percent.
Thus, the current 29.1 percent is below last year as well as the normal level.
In the southern region — Andhra Pradesh, Telangana, Karnataka, Kerala and Tamil Nadu — there are 42 reservoirs with a total live storage capacity of 53.334 BCM.
The available storage is 7.317 BCM, or 14 percent of the total capacity. This is significantly lower than last year’s 24 percent and the normal storage of 19 percent.
The report highlights that better than normal storage is available in Ganga, Indus, Brahmaputra, Brahmani and Baitarni, Narmada, Tapi and the Sabarmati basins.
Storage levels are close to normal in Subarnarekha, Barak, Mahi, Godavari, Mahanadi, west flowing rivers of Kutch and Saurashtra, including Luni, west flowing rivers from Tapi to Tadri, and west flowing Rrivers from Tadri to Kanniyakumari.
However, deficient storage is reported in Krishna, east-flowing rivers between Pennar and Kanniyakumari and Cauvery basins, while highly deficient storage is noted in the east-flowing rivers between Mahanadi and Pennar basins.
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