Water quality report

Water quality in Guwahati

Name: Groundwater quality: Guwahati
Creator: CGWB groundwater monitoring 2018-2021 (EC-derived TDS)

~190mg/L average TDSWithin limit

Source: CGWB groundwater monitoring 2018-2021 (EC-derived TDS), 2021 (Govt. of India) Based on 1 nearby government monitoring point..

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TDS (average)

190 mg/L

Within limit

106–264 mg/L range

Where 190 mg/L sits

190

0Ideal 300BIS 50012002000+

Your area reads Ideal. BIS rates water up to 500 mg/L as acceptable and 150–300 mg/L as ideal for taste and health.

What this means for you in Guwahati

Taste

Generally clean and light to drink.

Health

Within safe limits, though local supply can vary by season and building.

Appliances

Low scaling risk on taps and appliances.

What to use

A UV/UF purifier is usually enough; RO with mineral balance still helps.

Other parameters that matter

TDS is the headline number, but drinking-water safety also depends on these (BIS IS 10500 limits):

Bacteriological (E. coli / coliform)

Nil in any 100 ml

Causes stomach infections; needs UV or boiling.

Fluoride

1.0 mg/L (max 1.5)

Excess causes dental & skeletal fluorosis.

Arsenic

0.01 mg/L

Toxic; long-term exposure is carcinogenic.

Nitrate

45 mg/L

Risky for infants (blue-baby syndrome).

Iron

0.3 mg/L

Metallic taste, staining of fixtures & clothes.

Total hardness

200 mg/L (max 600)

Scaling on taps, geysers & appliances.

Regional watch: Government groundwater surveys have flagged elevated arsenic, iron in parts of Assam. If you draw borewell water, get these tested specifically.

Microbiological note: bacterial safety (E. coli/coliform) is not part of chemical groundwater monitoring — it needs a lab test of your own tap, and varies with pipe leaks and monsoon. UV purification (built into Boon Tap) inactivates bacteria and viruses; RO removes the dissolved contaminants above.

Why is TDS like this in Guwahati?

Most Indian cities draw heavily on groundwater, which dissolves minerals and salts from the soil and rock it sits in. Over-extraction, ageing pipes and local geology push dissolved solids (TDS), hardness and sometimes fluoride, nitrate or arsenic above safe limits. Levels also shift between seasons. The figure above is an indicative area reading from government monitoring — your own tap can differ, so it’s worth testing.

Recommended for your water

Boon Tap

TDS here averages ~190 mg/L (within BIS limits). Boon Tap keeps it safe with mineral balance and real-time monitoring.

Explore Boon Tap & check delivery

Guwahati water — questions

What is the TDS of water in Guwahati?

Groundwater near Guwahati has an average TDS of about 190 mg/L, within the BIS acceptable limit of 500 mg/L, based on government monitoring data (CGWB groundwater monitoring 2018-2021 (EC-derived TDS), 2021). Levels range roughly 106–264 mg/L across nearby monitoring points.

Is tap water safe to drink in Guwahati?

TDS around 190 mg/L is within BIS limits, but municipal/borewell supply varies by building and season — test your own water and use a purifier with monitoring to be sure.

Do I need an RO water purifier in Guwahati?

Possibly not for TDS alone, but an RO purifier with mineral balance still protects against seasonal spikes and other contaminants in Guwahati.

Data sources

Disclaimer: Figures are indicative area estimates from government groundwater monitoring nearest to this location and may differ from your exact tap/municipal supply. They are not a substitute for a lab test of your own water.