Tap water

Tap water became common in many regions during the 20th century, and is now lacking mainly among people in poverty, especially in developing countries.

As the consumption points above perform their function, most produce waste/sewage components that will require removal by the waste/sewage side of the system.

Most of the lead pipes that exist today are being removed and replaced with the more common material, copper or some type of plastic.

[5] It is important that the clean water not be contaminated by the wastewater (disposal) side of the process system.

[6] Most of the mandates for enforcing drinking water quality standards are not for the distribution system, but for the treatment plant.

[10] The level of residual chlorine found at around 0.0002 g per litre, which is too small to cause any health problems directly.

[11] Contaminant levels found in tap water vary between households and plumbing systems.

In 1993, the cryptosporidium outbreak in Milwaukee, Wisconsin, led to a massive hospitalization of more than 400,000 residents and was considered the largest in US history.

[17] Severe violations of tap water standards influence the decrease in public trust.

In 1999, the Natural Resources Defense Council (NRDC) released controversial findings from a 4-year study on bottled water.

The study claimed that one-third of the tested waters were contaminated with synthetic organic chemicals, bacteria, and arsenic.