As water utilities mobilize to replace millions of lead pipes across the country, they are sometimes choosing plastic, which some advocates worry can pose its own risks to drinking water.

Melted plastic pipes and drastic water-pressure drops are potentially leaching toxic chemicals and contaminants into local supplies. Multiple water authorities in north Los Angeles have issued Do Not ...

Many of the pipes were made of polyvinyl chloride, polyethylene ... Fulton County serves almost 72,000 accounts that supply drinking water to more than 280,000 people north of Sandy Springs.