its our responsibility to Minimise use of Natural resources, easy way to harvest rain water

1. RAINWATER HARVESTING A VISION FOR ALL
SAVE THE SILVER DROPS!
GET REWARDS IN THE FUTURE!
CHAMBER OF INDUSTRIAL & COMMERCIAL UNDERTAKINGS
(Govt. of India Recognised)

2. RAINWATER HARVESTING A VISION FOR ALL
From the Desk:
As you are familiar with my perspective concerning water shortage, I wish to
get yourself more pensive in this regard by exposing an incident during a
discussion with one of my friend from central India. When I enquired about
his well-being, the Gentleman let me know that the business is running in
succession but due to the acute deficiency of water, they are on sufferance.
They have to depend on water tanks for daily use and other water-required
mechanisms because the water level has gone underneath 700 feet.
The situation has been obtruded in my mind and I thought at once, what will
happen, if one day we have to hinge on water tankers to fulfill our needs &
work? We all make our houses, buildings with the latest gadgets, could we
obtain desirous results without water? To evade this incoming situation, we
have to take severe crackdowns with the cooperation of all and sundry who
needs water to survive & work.
I feel intense pleasure & proud to work on project – ‘NEER’. It is al about
spreading a message to each & everyone for the adoption of Rain Water
Harvesting so that we can yield maximum advantage of this natural bounty
and assure a bright future to coming generations.
Upkar Singh Ahuja
Managing Director
New Swan Group

3. PRESENT SCENARIO
Water Crises
NEED FOR RAIN
WATERHARVESTING
We got a lot of rain, yet we do not
have water. Why?? Because we
have not reflected enough on the
value of the raindrop.
CHERRAPUNJI Which receives
about 11,000mm rainfall annually
suffer from acute shortage of
drinking water. This is because the
rain water is not conserved and
allowed to drain away. Therefore, to
meet our increasing demand of
water in urban areas, to improve
the quality of ground water, rain
water harvesting required.

4. THIS IS RESULT OF 10min CONTINUOUS RAINING IS
EAST LUDHIANA (DHOLEWAL CHOWK)

5. TOTAL WATER ON EARTH
3%
Fresh Water
Of the total water on the earth
only 3% constitutes fresh
water. Rest is saline water in
the ocean
In Ocean (Saline Water)
• 11% of the total fresh water
on the earth is ground water
available up to a depth of 800m
which can be extracted for use.
97%
11%
11%
1%
77%
11% ground water upto
800m
11% ground water below to
800m
1% in lakes, river and
streams etc.
77% in glaciers & ice caps.
•Mindless extraction and over
exploitation of very small
quantity of this precious nature
resource has caused a rapid
depletion and deterioration in
its quantity and quality both.

6. UNDERSTANDING GROUND WATER
Contrary to popular
belief
groundwater
reserves are not in the
form of lakes or
streams
of
water
inside
the
ground.
Water in the ground is
stored
in
the
interstices
(interparticulate spaces) of
the soil or rock that
forms the earth. It is
similar to water being
stored in a sponge – it
is not visible, but can
be ‘squeezed’ out (or
drawn out). A simple
experiment
to
understand the nature
of the groundwater is
illustrated below.

7. UNDERSTANDING GROUND WATER
How is Groundwater
Formed when rain falls
on the surface of the
earth, some amount of
water
percolates
through the soil and
moves
downwards
under the effect of
gravity. When water
moves
through
the
soil, it is said to be
infiltrating, because it
gets filtered in the
process of passing
through the pores of
soil. Rain which is a
primary source of water
forms the groundwater
aquifers over many
years, as infiltration
form successive rains
joins
the
existing
groundwater.

8. CONCEPT OF ROOF TOP RAIN WATER
HARVESTING
In general, Water harvesting is the activity
of direct collection of rain water. The rain
water collected can be stored for direct use
or can be recharged into the ground floor.
Rain is first from the water that we know in
the hydrological cycle, hence is a primary
source of water for us. River, lakes and
ground water are all secondary source of
water.
In present times, we depend entirely on
such secondary sources of water and
primary source has been neglected to a
great extent.

9. BENEFIT OF RAIN WATER HARVESTING
Quality of ground water improve.
Raises the water levels in wells and
bore wells that are drying up.
Mitigates the effects of drought and
achieves drought proofing.
An ideal solution to water problem in
area
having
inadequate
water
resources.
Reduces the soil erosion as the
surface runoff is reduced.
Choking of storm water drains and
flooding of roads decreases.
Saving of energy. To lift ground water,
One meter rise in water level saves
about 0.40 Kilo watt hour of electricity.

10. HOW MUCH WATER CAN BE HARVESTED?
The total amount of water that is received in the form
of rainfall over an area is called the rain water
endowment of that area. Out of this, the amount that
can be effectively harvested is called the rain water
harvesting potential.
Water harvesting potential = Rainfall (mm) X
collection efficiency
Area of the Plot = 100Sq.m (120sq. Yd)
Height of rainfall = 2.2m (2200 or 87 Inches)
Volume of rainfall = Area of plot x Height of rainfall
Over the plot
= 100 sq. m x 2.2m
= 220 cu.m. (2,20,000 Lt)
Assuming that only 60% of the total rainfall is
effectively harvested, volume of water harvested =
1,32,000 liters.
The volume is about seven times the annual
drinking water requirement of 5-member family
The average daily drinking water requirement per
person is 10 liters.
The collection efficiency account for the fact that all
the rainwater falling over an area cannot be
effectively harvested, because of evaporation the
collection efficiency.
The Following is an illustrative theoretical calculation
that highlights the enormous potential for rain water
harvesting. The same procedure can be applied to
get the potential for any plot of land or rooftop area.
Consider a building with a flat terrace area 100 sq.m.
situated in Mumbai. The average annual rainfall in
Mumbai is approximately 2200mm (87 Inches). In the
simple terms, this means that if the terrace floor is
assumed to be impermeable, all the rain that falls on
it is retained without evaporation, then in one
year, there will be rain water on the terrace floor a
height of 2200mm.

11. TYPICAL WATER RECHARGE PIT DETAIL

12. 5 EASY STEPS
1. BOARING & TUBE FITTING
2. PIT DIGING
3. CIVIL WORK
4. TOP COVER
5. RAIN WATER TUBEING

13. RECHARGE TRENCH
1.
It is constructed when permeable strata of
adequate thickness is available at shallow
depth.
2.
It is trench of shallow depth filled with
pebbles and boulders.
3.
These are constructed across the land
slope.
4.
The trench may be 0.5 to 1m wide, 1 to
1.5m deep and 10 to 20m long
depending upon the availability of land
and roof top area.
5.
It is suitable for the buildings having the
roof area to 200 to 300 sq.m.
6.
Cleaning of trench should be done
periodically.

14. COST OF WATER HARVESTING
Typically, installing a water harvesting
system in a building would cost between
Rs. 20,000/- to Rs. 30,000/- for building of
about 300sq.m. it is difficult to make an
exact estimate of cost because it varies
widely depending on the availability of
existing structures like wells and tanks
which can be modified to be used for
water harvesting.
The cost estimate mentioned above is for
an existing building. The cost may be
comparatively less if the system were
incorporated during the construction of the
building itself.
Some basic rates of construction activities
and
materials
have
been
given
here, which may be helpful in calculating
the total cost of a structure. The list is not
comprehensive
and
contains
only
important activities meant to provide a
rough estimate of the cost.

15. CHOICE IS YOUR’S
A WATER TANKER
OR
A WATER HEAVEN