HDPE Piping (Build It Green fact sheet, .pdf)
HDPE pipe is a primary alternative to PVC (polyvinyl chloride) pipe for all piping applications. Unlike PVC, HDPE piping does not contain know contaminants such as chlorine and dioxins, it also has a much higher recycling rate.
This fact sheet discusses: environmental considerations such as energy, water, resource, and health impacts; practical considerations such as cost, specification, and maintenance info; and applicability to various Green Building Guidelines and Rating Systems