News and Articles

Chennai metropolitan area's water woes: CMWSSB's plans for the future
Steps outlined by the Chennai Metropolitan Water Supply and Sewerage Board to meet the water demands of Chennai city Posted on 19 Aug, 2009 04:01 PM

CMWSSB or Metro Water was established in 1978 and serves 180 sq kms of area and 5.5 million population.

Ozone depletion trend map for India from Down to Earth
This map shows the difference between predicted and observed ozone trends in 14 cities of India, based on data collected over a decade Posted on 19 Aug, 2009 03:52 PM

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Rainwater harvesting basics: Filtering the water before storage and use
Filtering rainwater before storage is essentially to remove organic material and silt so that the water stays clean longer. Posted on 19 Aug, 2009 03:29 PM

Overview

Rainwater is amongst the purest water one can get distilled as it is by the sun. However, in a rainwater harvesting system, the water comes in contact with several surfaces, such as the roof or gutters. Its flow becomes possibly mixed with leaves or dust.

Rainwater harvesting basics: How to direct roof top rainwater into the sump
This page provides you with the basics of how to direct the roof rainwater into the sump for effective storage Posted on 19 Aug, 2009 10:00 AM

Overview

Rainwater harvesting basics: All you need to know about recharge pits
A recharge pit allows the rainwater to replenish groundwater by recharging the underground aquifers. It can be built to recharge a borewell or just to help the water infiltration in an area. Posted on 18 Aug, 2009 04:09 PM

1) Overview:

All you need to know about rain barrels: Stepwise preparation and construction guide
Using a rain barrel is the easiest way to begin rainwater harvesting. Rain barrel serves as a storage unit for rooftop rainwater. It can collect a substantial amount of rainwater. Posted on 18 Aug, 2009 12:51 PM

Overview

In Bangalore, for example, for an annual rainfall of 900mm over 60 rainy days and a roof area of 50 sq.m.

Technical manual for Rainwater Harvesting
This is a technical manual for rainwater harvesting from the Rainwater Club, giving detailed information including required parts and approximate costs. Posted on 18 Aug, 2009 12:44 PM

Technical manual for Rainwater Harvesting from the Rainwater Club. It gives detailed information including required parts and approximate costs. The manual covers using rain barrels, recharge pits, directing rainwater into the sump, rainwater filters and recharge wells respectively in 5 parts.

River systems of Karnataka: Overview of the state's river systems and irrigation patterns
The page has information on the tributaries, catchment area and drainage patterns of the many rivers in the state
Posted on 14 Aug, 2009 03:19 PM

The Water Resources Department of Karnataka has a lot of relevant information on the river systems in Karnataka, irrigation, water resource development projects in Karnataka, notifications and orders, performance budgeting and allocation.

Karnataka's water resources: Excerpts from the Karnataka State of the Environment Report
The chapter on water resources in the report deals with the environmental problems linked to water resources pertaining to availability, distribution, management, utilization and sustenance Posted on 14 Aug, 2009 02:48 PM

It deals with the (a) inequities in sectoral distribution and inadequacy in availability of water (b)  inefficiency in use of water in domestic and agricultural sector (c) depleting ground water resource (d) inadequate treatment of watersheds (e) deteriorating surface and groundwater quality (f) degradation of traditional and community owned tanks and (g) siltation in river basins and command a

Economic issues in the management of water resources in the drought prone Pune district of Maharashtra State
This study by the Subhash B Bhagwat, deals with economic issues in the management of water resources in the drought prone Pune district of Maharashtra. Posted on 13 Aug, 2009 05:41 PM

This study by the Subhash B Bhagwat, the Visiting Fulbright Scholar to ACWADAM deals with economic issues in the management of water resources in the drought prone Pune district of Maharashtra. The situation in Pune city is intimately connected to the situation in Pune district. Likewise, the state and national policies and conditions ultimately determine what happens in individual districts or towns. Even then there is plenty of room for cities and districts to influence their own fate with respect to water and the related issues. Therefore, this report focuses on the district of Pune and Pune City but only in the context of and in conjunction with the state of Maharashtra and to some extent India itself.

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