Household plumbing systems use PEX for pipes to supply water and carry away sewage. The term PEX stands for "crosslinked polyethylene." PEX piping is manufactured by melting high-density polyethylene ...

North Texas cities that allow the use of PVC pipes to convey drinking water may want to revisit those decisions as EPA’s ...

With the EPA’s toxic review of vinyl chloride, South Texas should analyze water pipes in a changing regulatory environment.

NEW: A Uni-Bell PVC Pipe Association official has a rebuttal to the Beyond Plastics report covered in this story. Read the detailed update here. Bennington, Vt.-based Beyond Plastics, a nonprofit ...