Drinking Water Parameters in India !

 As per the Indian Standard for Drinking Water (IS 10500:2012), the following are the recommended parameters for safe and healthy drinking water in India:

  1. Microbial Parameters:

    • Total coliform bacteria: No detectable coliforms per 100 mL
    • Escherichia coli (E. coli): No detectable E. coli per 100 mL
    • Faecal Streptococci: No detectable faecal streptococci per 100 mL

  2. Chemical Parameters:

    • pH: 6.5 to 8.5
    • Total Dissolved Solids (TDS): Less than 500 milligrams per liter (mg/L
    • Chloride: Less than 250 mg/L
    • Nitrate: Less than 45 mg/L
    • Fluoride: 0.6 to 1.5 mg/L
    • Arsenic: Less than 0.01 mg/L
    • Lead: Less than 0.01 mg/L

    • 3.Physical Parameters:
    • Turbidity: Less than 5 Nephelometric Turbidity Units (NTU)
    • Color: No standard limit, but colorless or slightly colored water is preferable
    • Odor: No standard limit, but no objectionable odor is preferable.


    • It's worth noting that these parameters may vary depending on local or regional regulations and guidelines, and that water treatment facilities may have additional measures in place to ensure the safety and quality of drinking water.
India's drinking water resources can be broadly classified into two categories: surface water and groundwater.
Surface water resources for drinking water in India include:
1. Rivers: India has many large rivers such as the Ganges, Brahmaputra, Yamuna, Godavari, Krishna, and Cauvery that serve as a major source of drinking water for millions of people.

2.Lakes and Reservoirs: Lakes such as Dal Lake, Wular Lake, and Vembanad Lake, as well as reservoirs like Bhakra Nangal Dam, Hirakud Dam, and Sardar Sarovar Dam also serve as sources of drinking water.
3.Ponds and Tanks: Smaller water bodies like ponds and tanks are also used as sources of
drinking water in many rural areas.

Groundwater resources for drinking water in India

include:

1. Wells: Hand pumps, tube wells, and dug wells are

commonly used in rural areas to access groundwater

for drinking water.

2. Springs: Springs are another source of groundwater

that is used for drinking water.

3.Aquifers: In some areas, aquifers are used to tap

into groundwater resources for drinking water.

It's worth noting that the quality of drinking water from
these sources can vary greatly depending on a range of
factors such as contamination, water treatment, and natural
mineral content. Proper testing, treatment, and monitoring
of drinking water resources is critical to ensuring the safety and
quality of drinking water in India.

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