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

  • In Aleppey district of Kerala is there any borewell water test lab? Else in Kerala where is water test lab near to Alleppey district ?
    Anonymous (not verified)posted 1 year 6 months agoread more
  • Scientists at the Council of Scientific and Industrial Research’s Lucknow-based Indian Institute of Toxicology Research (CSIR-IITR) have developed a technology for disinfecting water that promises to provide safe and clean drinking water at a cost of just two paise per litre.  The technology...
    arathiposted 1 year 7 months agoread more
  • My family is living in Noida since 1985. We are using RO filteration, but recently three ROs have stopped working. AMC vendor says authority water has high TDS of 2500 on first floor and 3500 on second. I want to know if RO does not work when TDS is more than 2000. I have installed new pipes. Please...
    Anonymous (not verified)posted 1 year 7 months agoread more
  • We have just a year to go for Swachh Bharat Mission’s (SBM) deadline of making India open-defecation free (ODF). In the last four years, the government has built 86.08 million toilets (as on September 26, 2018) throughout the country as a part of this flagship programme on providing safe sani...
    Amita Bhaduriposted 1 year 8 months agoread more
  • I am trying to understand if any area in Chennai gets clean metro water through out the year which end user can consume by letting it to their sump directly. Central Chennai is currently facing acute water shortage and as far as I enquired looks most of them gets intermittent supply, that too metro ...
    Anonymous (not verified)posted 1 year 8 months agoread more
  • Uttar Pradesh generates second most urban sewage in India at 12 percent of the national total behind only Maharashtra at 13 percent. As per the response of Minister of Environment, Forest and Climate Change, Dr Harsh Vardhan to a question asked in the Lok Sabha on August 1, 2017, urban areas in...
    arathiposted 1 year 8 months agoread more
  • I am from central Chennai and groundwater level in our area has drastically reduced, wo have to depend on other sources (Lorry and Metro water). Metro water often gets polluted so we are looking for control valve open/close by observing the flow through hand pump before letting it to the sump. The c...
    Anonymous (not verified)posted 1 year 8 months agoread more
  • Hi, In our Apartment STP water quality gets affected regularly, when checked with AMC vendor we got to know that chemicals i.e paints, acid etc causes damage to STP. Please let me know whether really this kind of chemicals spoil the STP. If yes, please share the details of the chemicals/households ...
    Anonymous (not verified)posted 1 year 8 months agoread more
  • The family of Somesh Manikpuri of Amasivani colony in Raipur is still in shock of his sudden demise from jaundice in May this year. Six similar deaths have been reported from Raipur since April 2018. Memsingh Chandrakar, a resident of Naharpara, another locality in Raipur, was also affected by jaund...
    makarandpurohitposted 1 year 8 months agoread more
  • As the Ganga emerges from the glaciers and glides along the foothills of the mighty Himalayas through the towns and cities with their sprawling ghats, engineered embankments, hydroelectric dams, and interrupted flows at barrages, the icy chilliness of its waters is lost. Pilgrims swarm its bank to p...
    Amita Bhaduriposted 1 year 8 months agoread more
  • River Mutha, the pride of Pune, lovingly called 'Muthai' or 'mother Mutha', is dying a slow death, thanks to the rapidly urbanising city which is depositing huge amounts of untreated sewage and dirt in its water. The pollution of the river is consistently rising. The situation is so bad that the riv...
    aarti kelkar kh...posted 1 year 9 months agoread more
  • Access to freshwater is essential for all life and is a human right recognised by the United Nations. However, millions of people around the world face water scarcity, poor water quality, and inadequate sanitation. Companies operating in areas with water stress have an urgent responsibility to track...
    swatiposted 1 year 9 months agoread more
  • Hello, I am going to buy a water purifier, and to choose the type, I would like to know the quality of water in our area. We are staying in Santosh our, Kolkata. Pin Code-700075
    Anonymous (not verified)posted 1 year 9 months agoread more
  • Estimates suggest that about 10 million Indians are affected by fluorosis, a sickness associated with the consumption of increased concentrations of fluoride, mostly through water. Bones get weakened due to excessive accumulation of fluoride in them which results in increased hip and wrist fractures...
    Amita Bhaduriposted 1 year 9 months agoread more
  • Kerala floods take 38 lives, severe loss reported On August 9, gates of Idukki Dam, an arch dam located across the Periyar river, were opened due to incessant rainfall in the region. The opening of the dam gates has caused heavy floods in the state claiming nearly 38 lives. At least 30,000 people s...
    swatiposted 1 year 9 months agoread more
  • “The recent scare due to the detection of formalin-laced fish across Goa, Kerala, Assam, Manipur, Nagaland and Meghalaya points to a link between water quality and food safety. Fish traders find it cost-effective to use formalin, a carcinogen, instead of ice to prevent the decomposition of fish du...
    Amita Bhaduriposted 1 year 9 months agoread more
  • Yamuna river water quality improves, thanks to floodwater: Experts According to experts, the Yamuna river is at its healthiest state this year. This has been attributed to the improved water quality in the river due to a rise in the inflow of floodwaters. Increased flow in water leads to more oxyge...
    swatiposted 1 year 9 months agoread more
  • Hi The borewell water in our home shows a TDS of 1150. Could you recommend a solution for lowering it to less than 100. Its causing unsightly stains on the floor, walls, sinks, taps etc. Your advice would be greatly appreciated. This is for my home of 8 persons.
    Anonymous (not verified)posted 1 year 9 months agoread more
  • My first trek in the Himalayas was a transcendental experience. Even a decade after, I remember the intense beauty of every vignette I came across. That’s why I was excited about the Himalayan Cleanup, held on May 26 this year. More than 15,000 people participated in an attempt to spread awareness...
    arathiposted 1 year 9 months agoread more
  • How to establish a mineral-water-bottleling project in Erode district of Tamil Nadu, India? And inform me about the testing & treatment places nearby.
    Anonymous (not verified)posted 1 year 10 months agoread more

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A Future Earth Conference

Opening new frontiers in water system diagnostics and innovative solutions to mitigate the 21st-century global water crisis

September 24, 2019 9:00AM - September 27, 2019 6:00PM
August 31, 2019 12:00PM

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INREM Foundation and The Fluoride Network have worked in Chikkaballapur extensively, to battle the problem of fluoride contamination in groundwater.

Chikkaballapur is a district in the state of Karnataka, just north of the capital Bengaluru. A peri-urban area that was once an agricultural centre for this region, today Chikkaballapur is facing a unique problem. 

Decreasing rainfall has meant increasing periods of drought for this area, which in turn has caused residents to dig deeper and deeper in search of water. In this pursuit for groundwater, they have found water… but it is contaminated with fluoride.

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Prime Minister Modi pitches for a collective effort to overcome water crisis in the country

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Hello,

I stay at a housing at Doltala, Madhyamgram. There are white deposits on utensils, bottles and the washroom walls and floor and on the taps.Despite regular cleaning the deposits are difficult to remove and develop into scaly deposit with time. The filter that I use, too has deposits. I am not too knowledgeable about the pH or any other content of the water. I need to know the solution for this if any. Its becoming difficult day by day.

Kindly help

Regards

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Hi,

Have got a borewell at my house, but it has very hard water. Can using a softener make it portable or does it require softener & RO. Any other suggestions would be great. Attached a copy of water test report. Thankyou

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Hello,

My borewell water contains 1 mg/l of iron. IS456:2000 explains that iron presence is not suitable for construction purposes. I don't have any alternative may I use it? If I use it what effectit will have on the concrete. Or else, I use it for curing only ?

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News this week

The threat of desertification increases in 26 of 29 states

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THE ORGANIZATION

June 30, 2019 12:00AM

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Can STP water after aeration and filtration be used for groundwater recharging?

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Policy matters this week

Jal Shakti ministry formed by merging water ministry and drinking water ministry

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