1. Page 1
Proposal for Implementation of Rainwater Harvesting Systems and CSR Initiatives
Proposal for Rainwater Harvesting in our City.....................................................................................................2
Introduction.....................................................................................................................................................................2
Proposal.......................................................................................................................................................................2
Rainwater Harvesting ...........................................................................................................................................2
Methodology....................................................................................................................................................................3
Inverse Borewell Method with RWH Pit......................................................................................................3
RWH Statistics for Key Implementations*..................................................................................................3
Case Studies...............................................................................................................................................................4
IBW RWH model made for GHMC at Nature Cure Hospital, Balkampet, Hyderabad, July-2013.......4
St Theresa’s Convent, July 2013........................................................................................................................................5
Anthem Gated Community, Kompally, Medchal, August 2012...........................................................................9
Franklin Templeton, Gachibowli, September 2012..............................................................................................10
WestEnd Apartments, Masibanda, Gachibowli. August 2012..........................................................................11
Vertex Pleasant Apartments, Nizampet. September 2012................................................................................11
National Institute of Fashion Technology (NIFT), Hytech City, Madhapur. June 2011........................12
Smaran's work in Rural Areas under CSR................................................................................................15
Beera Cheruvu tank Renovation, Nadergul Village, Saroornagar Mandal, RR Dist - 2005................15
Edugonikunta, Nadergul Village, Saroornagar Mandal, Ranga Reddy District, 2011..........................16

2. Page 2
Proposal for Rainwater Harvesting in our City.
Introduction
Proposal
The aim of this proposal is to augment public funds provided by GHMC for rainwater harvesting
with corporate contributions through CSR and any other philanthropic sources to scale
rainwater harvesting implementations in Hyderabad.
There is keen interest in citizenry to bringing sustainability to urban environments and water is
key to this sustainability. The proposal aims to tap this interest to enable engagement of financial
resources from the corporate world and human resources in the form of volunteers who can
oversee the implementation of suitable RWH structures in their corporate campuses and in
community spaces such as public parks, Gated communities and institutions.
This proposal is being made by SMARAN, an organization with over 16 years of experience in
working on community development programs, watersheds and RWH structures in Hyderabad,
RangaReddy, Nalgonda and Medak Districts, AP, INDIA.
Rainwater Harvesting
The Need
Rainwater Harvesting is often referred to in this document as RWH in short. It means capturing
rain where it falls or capturing the run off in your own village or town and taking measures to
keep that water clean by not allowing polluting activities to take place in the catchment. The
rainwater collected can be stored for direct use or can be recharged into the ground water.The
sources for RWH are water runoffs from rooftops, local catchments, flood waters from local
streams and watersheds. The importance of RWH emerges from this simple fact that states only
1% of water on earth is usable by humans out of which 99% is ground water, .86% is water from
lakes and the rest of .14% comes from rivers. Hence depletion of rainwater is detrimental to our
survival while our sustainability lies in its replenishment.
Potential Benefits
Consider a RWH structure in a corporate office using shaft inverse bore well method with an
area of 1500 square meters. At an average annual rainfall of 800 mm, if the storm water collected
to recharge from the roof top area is 623 cubic meters and lawn area is 744 m3 in a Corporate
Office premises. Similarly, in a training centre the total quantity of the rain water harvested is
2190 m3 in a year for 366 m3 from roof top area and 358 m3 from of open area. With these 2
structures, 50% of the estimated efficiency is achieved. Likewise yearly augmentation of ground
water resources is 1000 m3, which amounts a value of Rs.10, 00,000 (Rupees ten Lakhs only) @
Rupees One per litre.

3. Page 3
Methodology
Inverse Borewell Method with RWH Pit
The most suitable method for the Deccan plateau region is by using inverse borewell method.
Ground water levels are defined as layers and the current situation in Hyderabad (as per Geologists) is
that we are drawing water at Layer 3 which is around 800 to 1000 feet. There are instances of Borewells
being dug to a depth of 2000 feet. Conventional RWH pits cannot tap the complete potential of RWH
given the rocky ground in the plateau. For instance it has been many noticed in some areas there are
sheet rocks/ huge boulders starting at a depth of 4 feet from the ground rendering any harvesting
impossible. Sheet rocks allow absolutely no water to percolate while boulders may have some crevices
to allow some water but not to the available potential. In Inverse borewell the same crevices, layers
and aquifers that are drained by conventional borewells drawing water are replenished with clean,
filtered rain water. The pit in this method serves to augment and filter water coming from various
channels such as roof top and surfaces (select sources). The filter consists of graded material such as
sand, stone and mesh. Clean Water coming out of the filter bed will dribble (by gravity) into the
borewell with a casing provided up to a suitable depth. Once it flows past the casing it joins the deep
aquifers thus refilling all the depleted sources. The biggest advantage of this method is the fact that
replenishing happens at such depths that surrounding areas will also see an increase in their ground
water levels apart from the point at which the RWH structure has been implemented.
RWH Statistics for Key Implementations*
S.
No
Campus No of
IBW RWH
Pits
No of
RWH
Pits
New
Borewells
Dug for
IBW RWH
Total
Project
Cost
Project
Time in
Days
1 Nature Cure Hospital 1 1 0 55000 20
4 National Institute of Fashion Technology 5 1 1 485000 60
S.
No
Campus No of
Tankers per
day prior to
RWH in
Liters
No of
Tankers per
day after
RWH
Implementat
ion in Liters
Total Cost per month
Prior to RWH in
Rupees
Total Cost per
month after to
RWH
5K 10K 5K 10K Water
Tanker
Cost
Borewell
Power
Charges
Water
Tanker
Cost
Borewell
Power
Charges
1 Nature Cure Hospital 6 0 0 0 90,000 * 0 *
4 National Institute of Fashion
Technology
0 15 0 0 5,00,000 * 0 *
* Data is being collated for all other RWH implementations at this point.

4. Page 4
Case Studies
IBW RWH model made for GHMC at Nature Cure Hospital, Balkampet, Hyderabad, July-2013.
The RWH project implemented at the nature cure
hospital, Balkampet under AYUSH Department as
a proof of concept for GHMC, Hyderabad. The
campus is spread in 12 acres of area with a
number of buildings & open area. The treatment
methodology in the hospital requires lots of water.
As of May 2013 the Hospital was getting 6 tankers
per day apart from the water drawn from their
existing bore wells. The below Pics shows 2 acres
of catchment area of surface rain water including
water from rooftop of the administrative building
with an area of 10,000 sq. feet, was channelized to
an IBW RWH pit to replenish deep aquifers.
The pictures below shows the entire rooftop and storm water flowing via silt trap into the RWH pit.
Rainwater from the RWH pit is directed via a sand filter further purifying the water before joining
into abandoned bore hole which is 920 feet depth.
The IBW RWH is constructed close to the abandoned borewell, at a point where the entire water is
leaving the 2 acre campus, thus capturing all the running rainwater. Identifying these locations and
channelizing flow of water is crucial to maximizing the potential of harvesting. The project impact is
daily requirement of 6 water tankers came down to ZREO /no water tankers called so far.

5. Page 5
St Theresa’s Convent, July 2013
St Theresas’s spread in 12 acres comprising of Girls High School, Church, Hospital, JMJ Nursing college
and Orphanage receives huge volume of storm water in their own campus.
St. Theresa Girls High School spread in 3.5 acres
area houses close to 2200 including students &
staff. The entire rain water used to go out onto the
roads from the gate & enter sewage drains but after
construction of 6 RWH pits along the storm water
drains, maximum rain water is percolating into the
ground while supporting two existing bore wells.
This further minimised the flooding, streets causing
inconvenience to traffic and stagnation. Awareness
about RWH among the children in the school has
increased. Teachers are taking keen interest to
explain how the RWH pits are contributing to the
increase in ground water deposits & soon after the
rains going through each and every structure.

6. Page 6
Total six RWH structures are constructed throughout the School campus along the existing storm
water drains thus augmenting maximum storm water, getting percolated into the ground.
Two existing borewells yield immensely increased after the RWH project implemented.

7. Page 7
JMJ Nursing college having 300 residential Girl
students along with the staff is having an office
cum hostel. Here also the entire surface rain water
used to flood and flow into the sewage drains. An
RWH pit is built where the maximum stagnation
used to occur, near the working bore well which
has started supporting the bore well yield.
The storm water from the nearby gardens, surface water & the rooftop rain water of Hospital building
are diverted through the cattle trap leading into the RWH pit which is near a working bore well.
The working bore well having low yield shown below is dug at a depth of 950 feet which is now
channelized with the roof top rain water from an adjacent building via a silt trap provided. This system
supporting the yield of bore well and whenever there are rains, keep joins the deep aquifers.

8. Page 8
St Theresa’s church admin building rooftop rain water is diverted to the working borewell via a silt
trap & RWH pit. The excess of RWH pit keeps joining the working bore well & than to deep aquifers.
The entire storm water from the main road and St
Theresas church area which always floods the main
entrance of the Hospital is diverted into the huge
RWH pit as shown in left side picture via silt trap
channelized through 2ft dia drain pipe. This pit was
constructed near to a working bore well which
started giving good yield compared to the previous
yield.
The picture on the top right shows storm water drain being disconnected from sewage line and
connected to the RWH pit. Children are curious about the RWH structure especially when water is
entering and percolating into the ground.

9. Page 9
Anthem Gated Community, Kompally, Medchal, August 2012.
Anthem gated community is spread over
26 acres at Kompally, Medchal. Prior to
this project the entire rain water was
flowing onto the roads and flooding the
neighbourhood. With the completion of
this project all this water has been
successfully harvested through 4 IBW
RWH structures. Now the community is
able to manage with the existing bore
wells without depending on purchase of
water tankers and also contributing to the
rise in neighbouring residents' and
colonies' bore well yields.
The picture on the left below shows the successful diversion of rainwater from outside, back
into the premises flowing into 2 of the 4 IBW RWH structures. The picture on the right below
shows the construction of one of the IBW RWH structures with a borewell of 350 feet depth.
The picture on the right above shows the distribution of storm water via the silt trap chamber
into the 2 IBW RWH structures.

10. Page 10
Franklin Templeton, Gachibowli, September 2012.
Smaran implemented IBW RWH for Franklin
Templeton in 2.5 acres area for their Gachibowli
campus spanning 10 acres. Rain water from
rooftops that used to flow along with sewage drain
outside their compound wall was diverted into a
new borewell dug to a depth 255 feet.
The pictures show the various stages in the
construction of the IBW RWH pit. The first picture
on the left shows the laying of drain pipes to divert
roof top rain water.
The picture below shows the construction of the
IBW RWH pit under progress.
The pic below shows storm water from drain pipes
flowing into IBW RWH pit Joining deep aquifers.
Impact: Yield of two borewells working near to IBW RWH pit increased continuously since then.

11. Page 11
WestEnd Apartments, Masibanda, Gachibowli. August 2012.
IBW RWH structure implemented in
WestEnd apartments at Masibanda, near
Gachibowli. The entire roof top area of
16000 sq. Feet rain water is fed to the
new borewell dug at 250ft, close to the
existing borewell. This year they have not
purchased a single water tanker as the
existing borewell yield increased. This has
motivated neighbouring communities
around them to consider harvesting.
Vertex Pleasant Apartments, Nizampet. September 2012.
The Apartment spread in 4 acres area has
around 400 flat and their monthly water
tanker expenditure during summer used to
be Rs. 5, 00,000. SMARAN implemented
two IBW method RWH structures, one in
the cellar and one in the park. The impact
this year is that they ordered the water
tankers from January as compared to
November last year and it’s clear that the
ground water level has increased there by
extending the working borewells yield by
two more extra months.

12. Page 12
National Institute of Fashion Technology (NIFT), Hytech City, Madhapur. June 2011.
NIFT campus, near Hitech city spread in 10 acres with 4 buildings and open area. The main building
shown in the picture below has a rooftop area of 40,000 sq feet. The campus has 550 resident
students and 50 non-residential teaching staff, 300 day scholars and 100 non-teaching staff apart
from visitors. The water requirement was 15 tankers per day prior to five IBW RWH implementation.
The pic below shows an existing pool having an
abandoned borewell is being flushed to percolate
rooftop rain water accumulating in the pool.
The picture below shows the IBW RWH pit being
constructed around the abandoned borewell.
The pictures below show the construction of a set of two IBW RWH pits connected in serial where
water flows to the first pit containing the abandoned borewell and excess water from it is channelized
to the second pit containing a new borewell dug to a depth of 940 feet.

13. Page 13
This implementation has a 3-stage
filtration where in the first stage,
rain water passes through baffles
and then into the 2nd stage
filteration through the IBW RWH
pit. Both stages are shown in the
pictures below.
In the picture below
plumbers can be seen
working on fitting the slotted
PVC pipes to the adjacent
new borewell 2nd IBW RWH
pit. These 3 pipes receives
excess of 1st IBW RWH.
The 3rd-stage of filteration
happens in the 2nd IBW RWH pit
where excess rain water flows
from the first pit, gets filtered
again percolates and joins deep
aquifers of 940ft borewell dug.
The picture on left below shows the completed structure. The picture on the right below shows
percolation of rainwater into the first & second stages as nad when rains.

14. Page 14
The second part of implementation in the NIFT campus was to the Annex Building with a rooftop area
of 16,500 Sq. Feet. There are 2 working borewells of 660ft depth one on each side of the building. The
rooftop rainwater is diverted on both sides to IBW RWH pits dug around each working borewell thus
allowing entire rain water to percolate into the deep aquifiers. The picture on the right side shows the
construction of one of the 2 IBW RWH Pits.
The project impact has been a reduction of
tankers from 15 to 8 per day in the first year &
further to ZERO tankers since the second year.
The pictures below show routing the roof top rain water outlets through PVC pipes leading to the two
working bore well IBW RWH pits.

15. Page 15
Smaran's work in Rural Areas under CSR
Beera Cheruvu tank Renovation, Nadergul Village, Saroornagar Mandal, RR Dist - 2005.
The tank was built 100 years ago spanning 10 acres needed restoration because the bund was narrow,
weak and breached. The silt removed from the tank during Desilting was used to strengthen the bund.
It was restored at a cost of Rs: 2.5 Lakhs from a grant by Hindustan Coca Cola and a portion of silt
transportation through farmer’s tractors (beneficiaries) towards Desilting and bund strengthening.
The above right side picture shows the site survey with farmers, Grampanchayath members and NGO.
The left side pics shows initial desilting stages. The picture on the left below shows the strengthening
of the bund and the picture on the right below shows the tank filled to the brim during rains.
As a result of restoration 20 open wells were filled to the brim, 73 borewells yield increased. An
additional 25 acres of fallow land came under cultivation and Poultries nearby stopped buying water
tankers. Cattles are not taken to far off places for fetching water & found Peacocks numbers on rise.

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Edugonikunta, Nadergul Village, Saroornagar Mandal, Ranga Reddy District, 2011.
The tank spanning 20 acres needed bund strengthening, revetment and spill weir renovation. M/s
Deloitte Hyderabad was the corporate sponsor for the renovation of project that costed Rs 4,18,000/-
apart from Farmers contribution initially in renovating the seepage problem to the bund earlier.
The pictures above show initial desilting stages. The picture on the right below shows Deloitte
employees about 500 participating on tank restoration on their IMPACT DAY task. The picture on the
left below shows spill weir restoration where the excess flood water is allowed to join the below tanks.
As a result of restoration active fishing has become an additional source of revenue for residents of the
village. Other allied occupations such as cattle rearing and poultries are also thriving because of
increased availability of water in open wells and borewells surrounding the tank. As a result of the 2
tanks (out of 15 in the village) being restored more birds such as peacocks and seasonal migratory
birds are now sighted around the tanks in the village premises.