Is Your Tap Water Really Safe Experts Explain What You Need to Know

India has made significant progress in bringing tap water closer to households, particularly in rural areas. However, greater access to water also brings another important question. Is the water reaching homes actually safe to drink

Under the Jal Jeevan Mission, rural tap water coverage rose from 21.33 percent in 2019 to 81.71 percent by March 2026, according to the information provided. The rapid expansion marks a major improvement in water access, but experts say quality monitoring must continue alongside infrastructure development.

Dr Anil Kumar, Chief Water Scientist at Eureka Forbes, says people should not judge drinking water only by its appearance, smell or taste. Some contaminants can remain completely invisible and may not noticeably change the flavour or odour of water.

Clean looking water can still contain contaminants

Transparent water is often assumed to be safe because there are no obvious signs of contamination. That assumption, however, can be misleading.

Groundwater and other water sources can contain substances such as arsenic, uranium, nitrates, heavy metals, pesticides and industrial pollutants. Many of these cannot be identified without proper testing.

This is why experts recommend checking water quality scientifically rather than relying only on what the water looks or tastes like.

TDS is useful but not the complete answer

TDS or Total Dissolved Solids is one of the most commonly discussed measurements when people check their drinking water. It indicates the presence of dissolved minerals, salts and certain inorganic substances and can also affect taste.

However, a TDS reading by itself cannot establish whether water is completely safe. Water with low TDS can still contain bacteria or viruses, while a higher TDS reading does not automatically mean that the water is unsafe.

The overall quality of drinking water needs to be assessed through multiple parameters rather than one number.

pH also matters

The pH level is another factor that can provide useful information about water quality. Water that is excessively acidic or alkaline can affect taste and may contribute to corrosion in plumbing systems.

Still, pH should not be treated as the only measure of drinking water safety. A proper assessment requires several quality parameters to be considered together.

Water testing highlights the concern

The figures shared in the source show that 63.96 lakh drinking water samples were tested across India during 2025 to 2026. Of these, 1.61 lakh samples were found to be contaminated.

These numbers underline why water quality monitoring remains important even as tap water connections expand. Providing a connection is only one part of the larger goal. Ensuring that the water delivered through that connection remains suitable for drinking is equally important.

Why household water quality can vary

Water quality can change between its original source and the point where it reaches a household. Groundwater conditions, treatment facilities, storage systems and pipelines can all influence the final quality.

For this reason, households that depend on local groundwater or have concerns about their water supply may benefit from appropriate testing. The right purification method should then be selected according to the actual quality of the water rather than based only on assumptions about TDS.

The bigger takeaway

The growing availability of tap water is an important step for Indian households, but access and safety are two different issues. Water that looks perfectly clear may still require testing to identify contaminants that cannot be detected by sight, smell or taste.

Experts therefore recommend taking a broader approach to water safety. Understanding the source, checking relevant quality parameters and choosing suitable purification can help households make more informed decisions about the water they drink.