Rainwater Harvesting | Centre for Science and Environment

Rainwater Harvesting


Best Practices

 

For details click on the city name

 

Technology

Components

Design

Construction

 

The components of rainwater harvesting systems include: 

(1) catchment 

(2) conveyance or conduit system 

(3) first flush 

(4) filters 

(5) storage or recharge system 

 

(1) Catchment

Doing Rainwater Harvesting: FAQs

1. What is RWH and why should I do it? 
It simply means catching and holding rain where it falls and using it. You can store it in tanks or you can use it to recharge groundwater. Doing RWH has the following benefits:

  • Meet household water needs especially during periods of scarcity. Rainwater is the purest form of water that doesn’t contain impurities like fluoride, arsenic, etc.

Who can do it for you?

Aizwal

Mr. Dunglena
Verdant Ridge,
Laiputliang, 
Aizwal-796012, MIZORAM

Ahmedabad

PRAVAH
200 Azad Society, Polytechnic Road, Ambawadi, 
Ahmedabad-380015, 
GUJARAT

Centre for Integrated Development
2nd floor, 96, Azad Society
Nehru Nagar, Ahmedabad, 
GUJARAT 
Email: cfidahmedabad@yahoo.com

Maintenance & Monitoring

Maintenance- the following steps should be adopted to ensure quality of harvested rain water:

Best Practices

Laipuitlang, Aizwal
Laipuitlang is located amidst hilly terrain of Aizwal. The area receives very high rainfall both from the southwest and northeast rainfall. The average annual rainfall of the area is 2049.7 mm and the number of rainy days is 110. The area falls in the high rainfall region of the country. Considering the greater number of rainy days, storage is the best option. Overall there is scarcity of water supply in the region.

Step by Step Process

1. Information collection

A. Types, area and location of catchments

B. Rainfall

C. Geological and Hydrogeological data

D. Water demand

E. Legislation and incentives

LEGISLATION ON RAINWATER HARVESTING

Implementation of the Bye-Laws in different States & Cities

KERALA
Reform

• The Kerala Municipality Building Rules, 1999 were amended by a notification dated  January 12, 2004 (Local Self Government Department Notification) issued by the

Government of Kerala to include rainwater harvesting structures in new constructions.  Exemption from this can be granted for cases where water logging is common or in areas with impermeable subsoil conditions to considerable depths.

Who can do it for you?

   

List of plumbers and masons

 New Delhi

The Shri Ram School's Rainwater Harvesting System

Madhu Bhatnagar of Shriram School, Vasant Vihar, receiving Rs 1 lakh special award for her initiatives in implementing and popularising rainwater harvesting in her school.

 

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