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

  • At a time when the government’s attention is steered towards the concerns of the northern rivers like the Ganga and the Yamuna, it is seldom that the polluted rivers of the south India come up for discussion. The Central Pollution Control Board (CPCB) had in its 2015 report noted that around 37,00...
    Amita Bhaduriposted 2 days 21 hours agoread more
  • With a total population of 1200, Sonnahallipura village in Hoskote taluk of Bangalore rural district has 250 homes. This village was chosen by the Rotary Club of Bangalore, Indiranagar to start a micro-credit programme for 10 women’s self-help groups (SHG) and a low-cost sanitary napkin manufactur...
    priyadposted 1 week 23 hours agoread more
  • We have analysed our bore water and give below the details for reference, comments and suggestion. Physical properties: appearance when analysed - turbid. After filtration - clear. PH value at 25 C - 6.95. Colour - Yellowish. odour - Agreeabe . turbidity - 21.0. Electrical conductivity - 5840 microm...
    Anonymous (not verified)posted 3 weeks 1 day agoread more
  • What is the source that increases COD, TSS and alkalinity of Sewage water in a Hospital? My hospital consists of Laboratory, CSSD, Operation Theatre, Pharmacy, kitchen, etc. Also how can these parameters be kept under control
    Anonymous (not verified)posted 1 month 1 week agoread more
  • After the Bharatiya Janata Party (BJP) came to power with Narendra Modi as the prime minister of the country on May 26, 2014, the new government initiated several key programmes with the protection of the environment in mind. One of the major programmes that gained momentum instantly was the Ganga r...
    swatiposted 1 month 3 weeks agoread more
  • All 14 districts in Kerala have been declared drought-hitAfter witnessing a 34 percent deficit in rainfall during the south-west monsoon, the Kerala government has declared all its 14 districts drought-hit. The districts are facing severe water scarcity; the worst affected ones are Wayanad, Thrissur...
    swatiposted 2 months 1 week agoread more
  • More fund over the budgetary allocation sought for MGNREGADespite the highest ever budgetary allocation this year to the Mahatma Gandhi National Rural Employment Guarantee Act (MNREGA), the scheme is facing a shortage of funds as the demand for work is higher this year due to droughts in s...
    swatiposted 2 months 1 week agoread more
  • Hi, First, I would like to congratulate your organization for the stupendous work and effort that was put into building such a huge informative portal. I am an IT employee working in Hyderabad. I am working on a case study and needed some information. I would be grateful if at least...
    sabitakaushalposted 2 months 2 weeks agoread more
  • Hi, We are an apartment of 8  flats in Kaggadaspura, Bangalore (Near a contaminated Lake). We use borewell water for non-drinking purposes, and we have noticed that sometimes water comes out black in colour dissolved with black sediments, from the bathroom and kitchen pipes.  Home Applian...
    Sreejithposted 2 months 3 weeks agoread more
  • Jail term for selling packaged water above MRP: Government Consumer affairs minister, Ram Vilas Paswan has ordered to impose a penalty and jail term on those who sell bottled water above the maximum retail price (MRP). The order is in line with the section 36 of Legal Metrology Act, that clearly or...
    swatiposted 3 months 2 days agoread more
  • The Thiess International Riverprize is a globally renowned prize that is awarded by the International RiverFoundation to those demonstrating outstanding results in the sustainable river basin management, restoration and protection across the world. This year, apart from the global recognition as a l...
    swatiposted 3 months 4 days agoread more
  • A severe crisis is plaguing the rivers in India. A study by the Central Pollution Control Board (CPCB) in 2013 has found that the number of contaminated rivers in the country has more than doubled over the past five years. This is mainly due to the deposition of untreated sewage and industrial efflu...
    aarti kelkar kh...posted 3 months 4 days agoread more
  • Call for Nominations Fourth Edition of FICCI Water Awards December 14, 2016 at FICCI, Federation House, Tansen Marg, New Delhi. Introduction The FICCI Water Awards were launched under the aegis of FICCI Water Mission, to promote awareness, policy advocacy, sharing of best practices and th...
    Water Awards 2016posted 3 months 2 weeks agoread more
  • Meghalaya in the northeast of India is richly endowed with natural resources such as streams and rivers as well as mineral resources such as coal, limestone, clay, sillimanite, uranium, and more. The estimated coal reserve in Meghalaya is around 576.48 million tonnes while limestone reserves are aro...
    aarti kelkar kh...posted 3 months 3 weeks agoread more
  • Ganga polluted with heavy metals and pesticides: CPCB According to a recent report by the Central Pollution Control Board (CPCB) on contamination of the Ganga, the river water has the presence of bacterial contamination besides traces of pollutants like heavy metals and pesticides. There are n...
    swatiposted 4 months 5 hours agoread more
  • Diarrhoeal diseases are a leading cause for childhood mortality and morbidity worldwide. India registers the third highest proportion of child deaths caused by diarrhoea in South Asia [1]. According to Central Bureau of Health Intelligence, 2012, diarrhoeal diseases are the most prevalent of all wat...
    aarti kelkar kh...posted 4 months 1 week agoread more
  • DJB to give individual water connections in slums The Delhi Jal Board (DJB) has introduced Jal Adhikar Connections for slum dwellers and 100 percent waiver of late payment surcharge for all commercial consumers totalling Rs 1,100 crore. The decisions were taken at the 128th meeting of DJB. Th...
    aarti kelkar kh...posted 4 months 1 week agoread more
  • Encroachment of lakes and riverbeds caused Chennai floods: Panel According to the Parliamentary standing committee, the encroachment of lakes and riverbeds had caused the massive Chennai floods last year. The committee has ordered the Tamil Nadu government to check the real estate mafia involved in...
    swatiposted 4 months 4 weeks agoread more
  • NGT raps UP government over Yamuna's pollution near the Taj Mahal The National Green Tribunal has reprimanded the Uttar Pradesh government, Uttar Pradesh Pollution Control Board, Agra Development Authority and Agra Nagar Nigam for not ensuring cleanliness and proper disposal of untreated sewage in ...
    swatiposted 5 months 1 week agoread more
  • NGT orders CWRA to meet every month for identification of wetlands In a landmark judgment, the National Green Tribunal has ordered the Central Wetlands Regulatory Authority (CWRA) to conduct a meeting with states and union territories every month for identification and notification of wetlands...
    swatiposted 5 months 2 weeks agoread more

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Rivers turn muck in many stretches in south India calling for action before they dry up completely.

At a time when the government’s attention is steered towards the concerns of the northern rivers like the Ganga and the Yamuna, it is seldom that the polluted rivers of the south India come up for discussion. The Central Pollution Control Board (CPCB) had in its 2015 report noted that around 37,000 million litres per day (MLD) of untreated sewage water flows into the rivers across the country.

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A village near Bengaluru sets an example of wastewater use by innovatively using the reject water from a community RO plant installed to eliminate fluoride contamination.

With a total population of 1200, Sonnahallipura village in Hoskote taluk of Bangalore rural district has 250 homes. This village was chosen by the Rotary Club of Bangalore, Indiranagar to start a micro-credit programme for 10 women’s self-help groups (SHG) and a low-cost sanitary napkin manufacturing unit.  

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We have analysed our bore water and give below the details for reference, comments and suggestion. Physical properties: appearance when analysed - turbid. After filtration - clear. PH value at 25 C - 6.95. Colour - Yellowish. odour - Agreeabe . turbidity - 21.0.

Topics

Sub-Categories

Regions

What is the source that increases COD, TSS and alkalinity of Sewage water in a Hospital? My hospital consists of Laboratory, CSSD, Operation Theatre, Pharmacy, kitchen, etc. Also how can these parameters be kept under control

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Sub-Categories

Regions

The Ganga clean-up drive may go on but won’t yield result without better planning, execution and coordination between Centre, states and stakeholders.

After the Bharatiya Janata Party (BJP) came to power with Narendra Modi as the prime minister of the country on May 26, 2014, the new government initiated several key programmes with the protection of the environment in mind. One of the major programmes that gained momentum instantly was the Ganga river rejuvenation. As part of it, the water ministry was renamed Ministry of Water Resources, River Development and Ganga Rejuvenation and is being headed by Uma Bharti. The name of the ministry speaks volumes about its objective--make the Ganga clean.

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News this week

All 14 districts in Kerala have been declared drought-hit

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Policy matters this week

More fund over the budgetary allocation sought for MGNREGA

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Hi,

First, I would like to congratulate your organization for the stupendous work and effort that was put into building such a huge informative portal.

I am an IT employee working in Hyderabad. I am working on a case study and needed some information. I would be grateful if at least some of these questions are answered. Most of the office spaces in Hyderabad, are supported by water cans as the only source of drinking water.

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Hi,

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News this week

Jail term for selling packaged water above MRP: Government

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