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

  • Rampura, situated in Bulandshahr district in western Uttar Pradesh, is one of the 1,200 villages on the banks of the 300-km long East Kali, a tributary of the Ganges. The river is named after goddess Kali who, according to the Hindu mythology, is fierce and fights evil by ingesting it. Till the 198...
    Amita Bhaduriposted 3 weeks 2 days agoread more
  • Audit reveals poor quality of water in UP rivers The CAG audit report for the year 2015-16 has revealed that the quality of water in major rivers and water bodies in Uttar Pradesh is not as per the government norms. The primary reason for the poor water quality is inadequate sewage and industrial e...
    swatiposted 1 month 4 days agoread more
  • E-Water Harmoniser (EWH) is a simple solution for all hard water related problems with zero water wastage and zero maintenance once installed. It has umpteen benefits for domestic, industrial as well as agricultural purposes. It does not require any salts, chemicals, magnets or electricity. It has m...
    Anonymous (not verified)posted 1 month 1 week agoread more
  • I purchased a new RO water purifier system. Bore water TDS level is 650 PPM, after RO purification water TDS level is 70 PPM and reject water TDS level is 180 PPM. My doubt is that the TDS level of reject water is less than the borewell water - is it right or wrong?
    Anonymous (not verified)posted 1 month 1 week agoread more
  • In Hyderabad, water tankers are the dominant source of daily water supply. Research for the project Ensuring Water Security in Hyderabad Municipal Area gave us some insights into the quality of water carried by these tankers. When the water is pumped from borewells in villages, it is not always tran...
    arathiposted 1 month 2 weeks agoread more
  • This is Vinay here recently have constructed my home near Bannerghatta Road in Bangalore, where in have drilled a borewell to 850 feet. The water force was so much that I couldn't drill further. Once I started using the water, I noticed it changes to brown colour and smells bad i.e. once I start the...
    Anonymous (not verified)posted 1 month 2 weeks agoread more
  • Present TDS level is 24, is this within the accepted range / limit?
    Anonymous (not verified)posted 1 month 3 weeks agoread more
  • Sir, we live in an apartment where the recycled water and the fresh water is stored side by side. There is a wall that divides these 2 tanks. Is it safe to continue this method of storage? Is there any regulation or case law to restrict this practice?
    Anonymous (not verified)posted 2 months 3 days agoread more
  • Which water system should I use for well water with TDS of 1200 - 1500 I mean which gbd membrane should I use my to machine For TDS level of 1300 to 1400?
    Anonymous (not verified)posted 2 months 3 weeks agoread more
  • I want to set up a greywater treatment unit at home, in this regard I want to know the characteristics of washing machine wastewater. Can someone tell the exact parameters for washing machine wastewater?
    Anonymous (not verified)posted 2 months 3 weeks agoread more
  • Seven percent of rural India has no access to clean water: World Water Day report As per WaterAid’s new report--Wild Water: State of the World’s Water 2017--63.4 million people have no access to clean water in rural India. With 67 percent of India’s population living in rural areas, this mean...
    swatiposted 3 months 11 hours agoread more
  • This story is of Punawli Kalan village in Uttar Pradesh, where a community with the support of a women-led federation, solved its water woes by developing a community-owned water supply system. Punawli Kalan village is situated in Jhansi district, in the drought-prone Bundelkhand region of Central ...
    priyadposted 3 months 5 days agoread more
  • Last year I have Purchased a Dr. Aquaguard Magnna HD RO+UV. After 1 Year when there technician come for maintenance he show me that the TDS of water is 129. He said that the, 129 TDS is very high. I have to change the cartilages. Can you please tell me what is the safe range of drinking water.
    Anonymous (not verified)posted 3 months 5 days agoread more
  • Water pollution is a serious problem in India with 70 percent of its surface and groundwater resources contaminated by biological, toxic, organic, and inorganic pollutants. As a result, the socio-economic cost of poor water quality is high. Around 1.5 million children under five years die each year ...
    aarti kelkar kh...posted 3 months 1 week agoread more
  • Southern India reels under drought-like conditions All the southern states, except Telangana, are facing drought-like conditions. Tamil Nadu is the worst hit with 80 percent deficit in water storage in the state’s reservoirs, followed by Andhra Pradesh, Karnataka and Kerala. The collective water ...
    swatiposted 3 months 3 weeks agoread more
  • Arsenic present in drinking water at many habitations: Centre The Ministry of Drinking Water and Sanitation has informed the Rajya Sabha that drinking water in 66,663 habitations across the country is affected by arsenic and fluoride contamination. However, the government is working to provide...
    swatiposted 4 months 1 week agoread more
  • In the last few decades, India has seen an increasing number of people migrating from rural areas to urban cities in search of work and better living. These migrants often get employed in the informal sector as construction workers, vendors, domestic servants, etc. They also live in informal settlem...
    makarandpurohitposted 4 months 3 weeks agoread more
  • People of Sikkim stand against Teesta hydel project The proposed 520 MW Teesta Stage IV hydropower project in Sikkim is being opposed by the indigenous Lepchas, a local community in the state that worships mountains and rivers. The project that has been proposed by the National Hydro Power Corporat...
    swatiposted 4 months 3 weeks agoread more
  • Wetlands are one of the most productive ecosystems and play a crucial role in everything from water conservation, flood regulation and groundwater recharge to micro-climate regulation, providing safe habitat to biota, and more. As per the National Wetland Atlas 2011 report, the millennium ecosystem...
    makarandpurohitposted 5 months 1 day agoread more
  • Can I use reverse osmosis reject water in media filters back wash? where TDS of reject I have is 1200 ppm.
    Anonymous (not verified)posted 5 months 4 days agoread more

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The water of East Kali is heavily polluted. It would hopefully change with the NGT taking notice of it.

Rampura, situated in Bulandshahr district in western Uttar Pradesh, is one of the 1,200 villages on the banks of the 300-km long East Kali, a tributary of the Ganges. The river is named after goddess Kali who, according to the Hindu mythology, is fierce and fights evil by ingesting it.

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Audit reveals poor quality of water in UP rivers

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A natural water softener to soften hard water that can be used in industries, households, agriculture and lake cleaning.

E-Water Harmoniser (EWH) is a simple solution for all hard water related problems with zero water wastage and zero maintenance once installed. It has umpteen benefits for domestic, industrial as well as agricultural purposes. It does not require any salts, chemicals, magnets or electricity. It has multiple benefits including complete stoppage of hard scaling and reversal of existing scaling on taps, pipes, geysers and solar panels. The improved life of the membranes within the RO plant completely mitigates the use of salts within the RO plant or acids to clean the overhead tanks and sumps.

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I purchased a new RO water purifier system. Bore water TDS level is 650 PPM, after RO purification water TDS level is 70 PPM and reject water TDS level is 180 PPM. My doubt is that the TDS level of reject water is less than the borewell water - is it right or wrong?

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Regions

While the quality of water supplied by tankers is suspect, having different sources of water for different uses is a luxury that not many can afford.

In Hyderabad, water tankers are the dominant source of daily water supply. Research for the project Ensuring Water Security in Hyderabad Municipal Area gave us some insights into the quality of water carried by these tankers. When the water is pumped from borewells in villages, it is not always transferred to tankers immediately. Many a time, water is pumped and stored in sumps. These sumps are lined with micron plastic sheets, which are used for a minimum of two years.

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This is Vinay here recently have constructed my home near Bannerghatta Road in Bangalore, where in have drilled a borewell to 850 feet. The water force was so much that I couldn't drill further. Once I started using the water, I noticed it changes to brown colour and smells bad i.e. once I start the motor, the water colour looks pure but if I store that water in any vessels after 30 minutes water colours turns to brown colour which we can't use for any purpose. Request for advice if I need to take any actions from my end since have inserted completely one length pipe.

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Present TDS level is 24, is this within the accepted range / limit?

Topics

Sub-Categories

Regions

Sir, we live in an apartment where the recycled water and the fresh water is stored side by side. There is a wall that divides these 2 tanks. Is it safe to continue this method of storage? Is there any regulation or case law to restrict this practice?

Topics

Sub-Categories

Regions

Which water system should I use for well water with TDS of 1200 - 1500 I mean which gbd membrane should I use my to machine For TDS level of 1300 to 1400?

Topics

Sub-Categories

Regions

I want to set up a greywater treatment unit at home, in this regard I want to know the characteristics of washing machine wastewater. Can someone tell the exact parameters for washing machine wastewater?

Topics

Sub-Categories

Regions

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