Quality, Standards and Testing

Water needed for human consumption, industrial purposes or other requirements must cater to certain minimum standards. The quality of any water is defined by its physical and chemical properties (characteristics). Physical properties include its appearance (colour, clarity and odour, perhaps also its taste) while the chemical properties refer to the constituents dissolved in it. Some of the physical properties are measurable and can be expressed in units of measurement while others like appearance, odour or taste are clearly subjective. However, all the chemical constituents can be measured accurately.

Drinking water must meet certain quality standards to safeguard the health of the people. The permissible and desirable limits of various parameters in drinking water have been detailed as per the Bureau of Indian Standards (BIS) standard specifications for potable water. These parameters are included in BIS-10500-1991. The various parameters covered include colour, odour, pH, total dissolved solids, hardness, alkalinity, elemental compounds such as iron, manganese, sulphate, nitrate, chloride, fluoride, arsenic, chromium, copper, cyanide, lead, mercury, zinc and coliform bacteria. The tolerance limits for inland surface waters for various classes of water use have been published by the Central Water Commission. Per ISI-IS: 2296-1982, the tolerance limits of parameters are specified as per classified use of water depending on various uses of water ranging from Class A to Class E.

What does the water that one drinks contain, what substances are dissolved in it and what are their safe limits? What are the issues that affect water quality? For more detailed information on all this, please read our FAQs on Rules, Regulations & Standards concerning water and Equipments used to measure water quality and quantity

  • I will be shifting to a building soon, where the TDS of water ranges from 300 to 400. There is no municipal connection and the community has a water treatment plant. The water coming in the taps is softened to some extent. In such a scenario do I need a RO system or should I get a water filter? Most...
    Anonymous (not verified)posted 3 days 10 hours agoread more
  • In our industry, we are having RO system and 30 percent of wastewater is being produced by this system. I checked the TDS of wastewater and it was 3200 ppm. Now I would like to use this wastewater for growing plants. Could you suggest a few varieties that would be able to thrive at this level of TDS...
    Anonymous (not verified)posted 5 days 17 hours agoread more
  • NGT raps green ministry for failing to curb depletion of groundwater The National Green Tribunal (NGT) has pulled up the environment ministry for failing to furnish a report, sought by the tribunal earlier, on the actions taken to tackle groundwater depletion. In January, the tribunal had ordered t...
    swatiposted 1 week 17 hours agoread more
  • A recent study by Toxics Link, an environmental research and advocacy organisation on batteries titled Dead and buried: A situational analysis of battery waste management in India estimates that 2.7 billion pieces of dry cell batteries are being consumed annually in India. The report talks abou...
    Amita Bhaduriposted 1 week 1 day agoread more
  • Under Namami Gange mission, only 10 out of 100 new sewage projects completed As per the records, the government has been able to finish only 10 of the 100 sewage infrastructure projects under the Namami Gange mission. Nearly Rs 28,000 crore has been sanctioned for the sewage management wo...
    swatiposted 2 weeks 1 day agoread more
  • The Yamuna was considered a nurturing and life-enhancing goddess in the past. Legend has it that bathing in the sacred waters of the Yamuna, the sister of Yama, the god of death, frees one from the ordeal of death. The 1376-km river is a tributary of the Ganga and originates in the Yamunotri gl...
    Amita Bhaduriposted 3 weeks 18 hours agoread more
  • Ganga laden with high proportion of antibacterial agents: Study As per the study Assessment of Water Quality and Sediment To Understand Special Properties of River Ganga conducted by the Nagpur-based National Environmental Engineering and Research Institute (NEERI), the Ganga river water has a sign...
    swatiposted 4 weeks 15 hours agoread more
  • NGT seeks report on constitution of Biodiversity Management Committees The National Green Tribunal has ordered the environment ministry to submit a report on the constitution of Biodiversity Management Committees (BMC) at the local level in every state within three months. Taking note of blatant no...
    swatiposted 4 weeks 18 hours agoread more
  • India, the second largest population in the world, is facing a water crisis with over 600 million people facing acute water shortage, as per a report by Niti Aayog, the government think-tank. India’s water crisis is expected to worsen, threatening the country’s food security as over 80 percent o...
    Amita Bhaduriposted 4 weeks 1 day agoread more
  • India could witness near-normal monsoon this season: IMD The India Meteorological Department (IMD) has predicted that this year, the rainfall in the four-month season from June to September is likely to be 96 percent of the 50-year average of 89 cm with a model error of +/-5 percent. As per IMD, th...
    swatiposted 1 month 5 days agoread more
  • CWC data shows water storage in major river basins depleting According to the recent data from the Central Water Commission (CWC), water storage in more than 60 percent of the basins is much lesser when compared to the average water storage over the last 10 years. The CWC monitored 12 river basins ...
    swatiposted 1 month 1 week agoread more
  • Kindly provide me the address/contact number of state government & central government water test labs in Kundapur, Udupi (Karnataka) Thanks & Regards Sathyanarayan (sathyaktr@gmail.com)
    Anonymous (not verified)posted 1 month 2 weeks agoread more
  • DDA allocates 42.5 acre plot on Yamuna floodplains for waste dumping As an alternative dumping site to the oversaturated Ghazipur landfill, the Delhi Development Authority (DDA) has allocated a 42.5 acre plot, located in the Yamuna floodplains, to the East Delhi Municipal Corporation (EDMC) to dump...
    swatiposted 1 month 2 weeks agoread more
  • Compiled by Pankaj Kumar, Resource Person; additional research provided by Ramya Gopalan, Research Associate 27 June 2006Original Query: Vijaya Saradhi Atluri, Byrraju Foundation, HyderabadPosted: 20 April 2006 Byrraju Foundation is a non-profit organization dedicated to bringing about a tangible i...
    aarti kelkar kh...posted 1 month 3 weeks agoread more
  • Compiled by Pankaj Kumar S., Resource Person and Ramya Gopalan, Research Associate, 13 December 2006 From Kanishk Negi, Society for Promotion of Wastelands Development (SPWD), Udaipur, RajasthanPosted: 29 September 2006 I work in the western arid zone of India with the Society for Promotio...
    aarti kelkar kh...posted 1 month 3 weeks agoread more
  • Compiled by Pankaj Kumar S., Resource Person; additional research provided by Ramya Gopalan, Research Associate 5 July 2006 Original Query: Sharadbala Joshi, Water, Engineering and Development Centre (WEDC),Loughborough University, UK Posted: 16 June 2006 I have primarily been involved with urban...
    aarti kelkar kh...posted 1 month 3 weeks agoread more
  • Activists seek President, PM intervention to protect mangrove trees in Maharashtra Environmental groups Nature Connect and Shree Ekvira Aai Pratishtan (SEAP) have written to President Ram Nath Kovind and Prime Minister Narendra Modi to protect 53,465 mangrove trees from destruction by the bull...
    swatiposted 1 month 3 weeks agoread more
  • According to WASH watch report (2017), over 150 million people in India live without access to safe drinking water. A majority of these people reside in underserved or unserved sections of the society that lives beyond the pipe. As a result, they are dependent on water sources that are not safe for ...
    swatiposted 2 months 1 day agoread more
  • UN Environment Assembly adopts resolutions on single-use plastics, nitorgen management piloted by India The environment ministry has informed that at the fourth session of the United Nations Environment Assembly (UNEA), two resolutions piloted by India on single-use plastics and sustainab...
    swatiposted 2 months 3 days agoread more
  • Fluoride, arsenic, nitrate, and other chemicals in drinking water pose significant health risks (such as fluorosis and arsenicosis) to our population. According to government data (2016), about 21 million people in over 23,500 habitations were affected by arsenic and fluoride contaminated groundwate...
    priyadposted 2 months 5 days agoread more

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I will be shifting to a building soon, where the TDS of water ranges from 300 to 400. There is no municipal connection and the community has a water treatment plant. The water coming in the taps is softened to some extent. In such a scenario do I need a RO system or should I get a water filter? Most people have installed RO. Please help.

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In our industry, we are having RO system and 30 percent of wastewater is being produced by this system. I checked the TDS of wastewater and it was 3200 ppm. Now I would like to use this wastewater for growing plants. Could you suggest a few varieties that would be able to thrive at this level of TDS.

Topics

Sub-Categories

Regions

Policy matters this week

NGT raps green ministry for failing to curb depletion of groundwater

Topics

Sub-Categories

Regions

Study reveals how tossing of dry cell batteries in our dustbins poisons the environment.

A recent study by Toxics Link, an environmental research and advocacy organisation on batteries titled Dead and buried: A situational analysis of battery waste management in India estimates that 2.7 billion pieces of dry cell batteries are being consumed annually in India. The report talks about their use in a variety of products and devices ranging from cars to mobiles, laptops, watches, television remotes, toys, medical devices and inverters.

Topics

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Regions

Policy matters this week

Under Namami Gange mission, only 10 out of 100 new sewage projects completed

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Regions

A sensor network system is being used for mapping and monitoring the water quality of river Yamuna.

The Yamuna was considered a nurturing and life-enhancing goddess in the past. Legend has it that bathing in the sacred waters of the Yamuna, the sister of Yama, the god of death, frees one from the ordeal of death. The 1376-km river is a tributary of the Ganga and originates in the Yamunotri glacier in the lower Himalayas. It passes through several states in north India including Uttarakhand, Haryana, Uttar Pradesh and Delhi where the river was once its lifeline.

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News this week

Ganga laden with high proportion of antibacterial agents: Study

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Regions

Policy matters this week

NGT seeks report on constitution of Biodiversity Management Committees

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Regions

Civil society activists champion alternatives to conventional water management solutions implemented by the government.

India, the second largest population in the world, is facing a water crisis with over 600 million people facing acute water shortage, as per a report by Niti Aayog, the government think-tank. India’s water crisis is expected to worsen, threatening the country’s food security as over 80 percent of our water is used in agriculture. Twenty-one cities are likely to run out of groundwater by 2020, despite increasing demand, as per the report.

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News this week

India could witness near-normal monsoon this season: IMD

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