Data

This site by the Ministry of Water Resources provides details of the groundwater quality scenario and the efforts undertaken to monitor groundwater quality in India.

Know all about arsenic poisoning of groun

Solar Water Disinfection (SODIS) is a simple water treatment method to kill any pathogens in water that cause diarrhoea. This website provides a number of resources related to the application of this method

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Water quality standard sectiion

The water quality standards section on the site of the Central Pollution Control Board (CPCB), contains data on limits/standards of various indicative water quality parameters, such as coliform, pH, dissolved solids, bod etc, for each designated water use (drinking, bathing etc).

Read the standards and also view this file for water quality and drinking water quality standards from www.groundwatertnpwd.org.in

Monitoring of Indian National Aquatic Resource: This article on the Central Pollution Control Board (CPCB) website, contains graphs indicating the water-source wise national water quality monitoring network data, water quality trend across different parameters (bod, coliform etc), and water quality trend (measured in terms of bod) in various rivers of India.

View the graphs

Environmental standards section

The environmental standards section of the Central Pollution Control Board website, contains more than 40 industry–specific effluent standards, ranging from battery manufacturing to thermal power plants.
Read the industry–specific standards
Under the same section, read through some of the more recently–notified industry– specific standards and some proposed industry–specific standards here
The CPCB is a national body formed to promote cleanliness of streams and wells in the country by prevention, control and abatement of water pollution, and to improve the quality of air and to prevent, control or abate air pollution in the country.
For more info, click here

17 most polluting industries in India

This site provides information on the list of 17 most polluting industries, identified by the Central Pollution Control Board (Ministry of Environment and Forests). The site provides information on the following sections:

This section from www.rainwaterharvesting.org deals with traditional water harvesting systems. Water has been harvested in India since antiquity, with our ancestors perfecting the art of water management. Many water harvesting structures and water conveyance systems specific to the eco-regions and culture has been developed.

• They harvested the rain drop directly. From rooftops, they collected water and stored it in tanks built in their courtyards. From open community lands, they collected the rain and stored it in artificial wells.
• They harvested monsoon runoff by capturing water from swollen streams during the monsoon season and stored it various forms of water bodies. 
• They harvested water from flooded rivers

The Preliminary Consolidated Report on the Effect of Climate Change on Water Resources, prepared by the Central Water Commission and the National Institute of Hydrology, under the guidance of the Ministry of Water Resources in 2008, is one of the first official reports made available by the Government of India, of a reliable quantitative assessment based on field data, of the likely effect of climate change on the availability of water resources, i.e. on the glaciers and snow melt, on rainfall and their effect on run off into the river system and their contribution to ground water. In the Report, an attempt has been made to give a brief account of the available studies on possible impacts of climate change on India's water resources, change in India's water needs, climate of India, river basins of the country, present water resources and future demand and supply, impacts of projected climate change and variability, and associated hydrological events and likely vulnerability of regional water resources to climate change. Identification of key risks, research needs and prioritisation of mitigation strategies has also been discussed. Access the report here: Preliminary Consolidated Report on the Effect of Climate Change on Water Resources

Notes on flood situation district-wise in Khagaria, Sahasra, Supaul, Madhubani, and West Champaran districts of Bihar.These were compiled by the Megh Pyne Abhiyan, a network of NGOs in North Bihar. (Due to the difficulty of the ground situation some inaccuracies may be present)