Groundwater levels improve due to excess rainfall

A net rise in groundwater level of 2.03m was observed during last month

Ground water levels in Telangana state improved this time in comparison to last year’s levels due to excess rainfall in the water-year 2020-21. The ground water department monitored the levels during April-2021 through 971 piezometers (monitoring stations) covering all mandals across 33 districts.

The average ground water level in the state during April 2021 was 9.02 metres below ground level (mbgl) and it varied from 3.74mbgl (Wanaparthy) to 16.07mbgl (Medak).

Average water level was less than 5mbgl in one district while it was between 5 and 10mbgl in 21 districts. In the remaining 11 districts, it was more than 10mbgl.

A net rise in groundwater level of 2.03m was observed during this April compared to the same month last year. The rise was observed in 27 districts and a fall in six districts. A minimum rise of 0.26m was observed in Karimnagar district and a maximum rise of 7.08m in Sangareddy district. A minimum fall of 0.01m was observed in Bhupalapally and a maximum fall of -1.85m in Adilabad district.

A net average rise of 2.26m in groundwater levels was observed during this April compared to May last year.

A rise was observed in 28 districts (0.15m in Nirmal to a high of 7.43m in Sangareddy) and a fall is observed in the remaining five districts — Adilabad, Bhupalapally, Jagityal, Nizamabad and Mancherial.

Shallow water levels (less than 5mbgl) existed in 15 per cent of the state area covering most of Jagityal, Warangal(rural & urban), eastern part of Adilabad, western part of Asifabad, western part of Mancherial, eastern part of Nirmal, eastern part of Karimnagar, central part of Mahabubabad, central and eastern part of Khammam, central part of Suryapet, Wanaparthy, south and central part of Nagarkurnool, central and eastern part of Nalgonda district and north eastern part of Gadwal.

Water levels in the range of 5-10mbgl existed in 51 per cent of areas and were followed by 10-15mbgl water levels over 24 per cent of state area during the month.

Moderately deep (1520mbgl) and very deepwater levels (more than 20mbgl) existed in 8 per cent and 2 per cent of state area respectively and these are mostly covering some of the eastern and western parts of Nizamabad, south eastern part of Sangareddy, western part of Medak, western and southern part of Siddipet, south-eastern part of Bhadradri, central part of Kamareddy, western part of Nirmal and Adilabad, northern part of Vikarabad, north-western and eastern parts of Mahabubnagar and northwestern parts of Bhupalapally district.