Dip in rainfall in Idukki dam area

Water level third lowest recorded

The cumulative rainfall received in the catchment area of the Idukki dam during the June 1-29 period this year is marginally less, at 569 mm, than the 592.20 mm during the corresponding period last year.

Water level in the dam on June 29, 2017 was lower than that on the same date last year. “This is owing to the low minimum level from where it showed the upward trend, compared with the minimum level last year,” said an official of the Dam Monitoring and Research Station, Vazhathoppe. He said the water level on June 29 was 2,310.60 ft compared with 2,321.20 ft on the corresponding date last year.

This year’s minimum level is the third lowest and only a good southwest monsoon would compensate for the poor storage in the dam, he said.

The minimum level recorded this year was on June 23 — 2,299 ft — and the lowest minimum water level last year was 2,314.20 ft, recorded on June 5, 2016.

On June 29, water storage was at 16.94%, one of the lowest during the season since the dam was commissioned. The official said the lowest water level recorded in the dam’s history was in 1983 — 2,280. 59 ft, followed by 2,298 .6 ft in 2012.

Usually the highest level of water is reached during September-October. Last year, the highest level was also far below the average level. There is concern about poor rainfall affecting the power generation during summer. The generation at the Moolamattom power house remained low and it was 1.58 million units on June 29.

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Printable version | Feb 26, 2020 7:53:02 PM |

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