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RAIN WATER HARVESTING in
Buildings, Campuses & Landscape
GAURAV P. RAJA
C O N S U LTA N T S @ T H E R I D G E .
C O . I N
W W W. T H E R I D G E . C O . I N
+ 9 1 - 9 8 8 2 0 - 8 8 0 4 9 `

An Introduction
FILTERING POLLUTION
MIXED IN STORMWATER
RESUPPLYING
GROUNDWATER BY
WATER PERCOLATION
MAINTAINING STREAM
FLOWS
PROVIDING HABITAT FOR
BIRDS & OTHER CREATURES
REDUCING WATER
SHORTAGE AND BILLING
COSTS
1. RAINWATER
HARVESTING &
GROUNDWATER
RECHARGE
?BUILDINGS
?COMMERCIAL HOTELS
?INDUSTRIES
?UNIVERSITY CAMPUSES
FOR NAAC RATINGS
2. RAINGARDENS
? GARDENS
?NATURAL WATER
STREAMS
?ROAD SIDE DRAINAGE
3. STORMWATER
DRAINAGE
? URBAN DRAINS
? SURFACE RUNOFF
HARVESTING
4. GREY AND
KITCHEN WASTE
WATER RECYCLING
? INSTITUTIONS
? HOTELS
? CITIES
? RURAL AREAS
OUR
SERVICES
REDUCING COSTS &
STATUTORY COMPLAINCE
5. RURAL WATER SECURITY PROJECT

2 National & 1
State Award
3
Best Initiative in Water Harvesting by UNESCO,
CGWB by Water Digest 2016-17
Professional Excellence Award in Water
Conservation by World Aqua Congress 2017-18
Kitchen water recycling project Awarded by
H.P. State Environment Award
Video

Types of Rain Water Harvesting
? Rainwater Harvesting
– Rooftop Harvesting/Recycling
– Ground Water Recharge of Aquifer
– Ground Water Recharge of Non-Aquifer
? Stormwater Harvesting
– At Property Level
– In community/Urban Level.
? Soft/Porous Area Harvesting
– Rain gardens / Bioswales

1. Rainwater Harvesting
? Provided option to Hotels to do REAL – Rainwater
harvesting & reuse for drinking etc. to save on water bills,
water shortage, prevent exploitation
of ground water & be a green building.
Did I say Real or Just for passing
the building maps!!!!!
? Completed nearly 40 Projects in Himachal Pradesh
mainly of Values from Rs. 1 - 5 Lakhs per project.
? The investment costs is recovered in about 8-9 months.
? Got 1st
& 2nd
Proper Projects after nearly 8-9 months of
first contacting the hotel and an automobile dealership.
What & Why??? Rain water harvesting

How??? Rain water harvesting

What and Why??? Rain gardens
? Provided option for Organizations/ Government
to develop Raingardens and Bioswales instead
of simple landscaping or roadside drainage.
? First of its kind pioneering projects in
Himachal Pradesh.
? Rain gardens and bioswales are simple
landscaping features used to slow, collect,
infiltrate, and filter rainwater and stormwater
which can be recycled.
? The project cost ranges from Rs. 20,000 to
Lakhs of Rs. However the investment can be
recovered by saving (12-24 months) in water
bills, less road maintenance, Positive ecological
services, creating Nano Watersheds etc.

How??? Rain gardens
Himachal
Pradesh
University
Library
Garden
Transformed
to
Raingarden
instead
of
Landscaping

How??? Rain gardens
Applicability:
1. Replacing NON-
ecofrindly Landscaping
with eco-friendly
Raingardens
2. Roadside Bioswales for
preventing FLOODING
& proper
STORMWATER
DRAINAGE.
3. Constructing outdoor
structures on a
Raingarden model like
Open Parking Lot,
Driveway, Airport
runway etc.

What and Why??? Stormwater drainage
? Ensure SOLUTION for Filtration of pollutants from water
flowing in drains (Stormwater) and other natural HILL side
nallahs for both reuse and for urban/rural drainage
maintenance.
? First of its kind STORMWATER FILTERS Used for rainwater
harvesting
? Filtration systems can be for flow rate of about 500 Liter per
hour to 1,00,000 Litres/hour and above.
? Cost saving in terms of better hygiene, improved drainage,
rainwater cum stormwater harvesting etc.

How??? Stormwater drainage
? Youtube Video
? .

What and why?? Kitchen & Grey water Harvesting
? To comply with Pollution Board Guidelines, to ensure clean
drains and to get additional water at minimal costs, kitchen water
and grey water is mixed with rainwater for reusing and recycling.
? Recently one of our projects Mid-Day Meal Block has been
awarded by Hon’ble Chief Minister H.P. State Environment
Award in Government School for Water conservation activities.
Incidentally 2000 liters of water per day on pilot basis is being
used for washroom purpose.
? Another project has featured on International Travel Magazines,
Airbnb as one of the most Eco-friendly Home Stay in Himachal
because of Rain & Grey water Harvesting

How??? Kitchen & Grey water Harvesting
Meena Bagh
Shimla B&B (Left)
Govt. Girls
Portmore School,
Shimla (Below)

Upcoming & Ongoing – Rural Water Security
Self Sustainable Integrated WATER SECURE Community
Safe drinking Water,
Community Toilets, Bathroom, Nursery for plants,
Electricity & Energy, All Under One Roof!
Empowerment,
Employment & Skills,
Sustenance

Basic
Layout
Our Project
Can help
achieve
WATER
SECURITY
MISSION
FOR RURAL
AREAS

? Smart City – Dehradun
? Amrut Mission Cities –
Dehradun, Hardwar,
Haldwani cum Kathgodam,
Rudrapur, Kashipur and
Roorkee.
Rainwater – Stormwater –
Open/Green Areas are
critical component
Uttrakhand Rainfall 1735.4 mm as per Rainfall Statistics of
India by Indian Metrological Department 2013.
Approx. 1 hour of Rainfall in 2000 sq.ft of Area = 5000
liters of water.
Transforming Uttrakhand – WATER
SECURITY PROBLEMS AND OPPORTUNITIES

WAY FORWARD FOR UTTRAKHAND
1. ROOFTOP & COMMUNITY RAINWATER HARVESTING
2. CONSTRUCTION OF RAINGARDENS AND
BIOSWALES ALONG ROADS AND WHEREEVER
POSSIBLE
3. WASTE WATER HARVESTING IN SCHOOLS
COLLEGES & GREEN AUDIT FOR NAAC
4. SYSTEMS APPROACH – ADDRESSING
WATER SECURITY
4. RESTORATION OF NATURAL RAINWATER BOWRI
AND HILL STREAMS BY BIOLOGICAL METHODS.

Thank you
Raja Gaurav Prakash,
consultants@theridge.co.in
+91-98820-88049

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