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The
Udyog Bhavan premises consist of many important government offices.
Water requirement is met from Municipal water supply scheme, which
is adequate to meet their demand. Water is mainly required for
non-drinking purposes such as washing, toilets and bathrooms,
laboratories, gardening and other domestic purposes. A dug well with
3.0 m dia and 6 m depth is also a supplementary source of the
building. However, water requirement is totally dependent on the
Municipal water supply. The Udyog Bhavan Building is located near a
small tributary of River NAG. This tributary is flowing in
north-south direction on the eastern side of the building. Location
Map is shown as MAP A. The
total area of the premises being 6047 m2, the built up
area is 5909 m2 . This building is 6
storied and each floor consists of 965 m2 . The
total rooftop of this building is measured to be 1002 m2
. Rooftops
of the
buildings have been systematically designed and slope to drain out
the rainwater through drainpipes (160 mm diameter PVC pipeline).
These drainpipes are interconnected and subsequently open into
nearby nala, discharging all the rainwater in the form of surface
run off. The rooftop has been divided in two sections, viz.,
Northern & Southern Sections respectively. These act as
catchment divides and separate each section on rooftop as shown in FIG
B. Amount of
rainwater incident on these roof areas along with other roof areas
has been estimated as below. As mentioned earlier the roof top area
was measured to be1,002 m2. Considering 1000 mm. rainfall
incident over these rooftops, 802 m3 water is received in
the form of rain fall every year.
Annual Rainwater
Incident
= Rooftop Area x Annual Precipitation x 0.8
=
1002 x 1.0 x 0.8 = 802 m3 or 8,00,200 liters / annum |
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