This years rainfall in Bangalore has created the raise in the vadose ground
water level. Earlier the GWT was around 10 to 20 meters BGL when there were open
wells. Now a days the GWT has gone done to more than 30 to 40 meters in
Bangalore. Last month one of my friends garage was flooded due to the raise in
GWT of his bore well and several cases has been reported. However it was a
temporary phenomenon.

Hari
KSRSAC Bangalore


S V Vijayakumar <vkumarsv@...> wrote:

Dear all,

Recently, I have come across some fine data in a sand stone formation where a
large canal is under construction. Here, it is observed that

1. the groundwater level rose by about 18 metres from September to Novemeber
(post monsoon seson) in two increments seperated by a week. This has not been
experienced since 2002.
2. The ground level is about + 45 m and The water level rose from -13 m to + 5 m
above mean sea level.
2. The previous year's high was about 8 m below the present high. Both highs
occur with in a week after end of rainfall event.
3.Previously, when ever a gap of one week in rainfall is there, there was
recession in levels, where as now the recession limb is not falling like that
and daily pumping fluctuations in water levels were not so visible as they were
earlier. This seasons rainfall is about 50% more than that of last year, which
recorded normal rainfall.

I want to know from group that can any one specify such a rise elsewhere and the
plausible reason? reference of any reports on such studies.

V Kumar