[Docket No. PHMSA–2012–0044]
The
Pipeline and Hazardous Materials Safety Administration (PHMSA) issued Advisory
Bulletin ADB 2012-03 to alert operators using Driscopipe® 8000 High Density
Polyethylene Pipe (Drisco8000) of the potential for material degradation.
Degradation has been identified on pipe between one-half inch to two inches in
diameter that was installed between 1978 and 1999 in desert-like environments
in the southwestern United States. However, since root causes of the
degradation have not been determined, PHMSA cannot say with certainty that this
issue is isolated to these regions, operating environments, pipe sizes, or pipe
installation dates. While the manufacturer has attempted to communicate with
known or suspected users, PHMSA and the National Association of Pipeline Safety
Representatives (NAPSR) have identified several operators currently using
Drisco8000 pipe who had not received communications about the issue. PHMSA is
issuing this advisory bulletin to all operators of Drisco8000 pipe in an effort
to ensure they are aware of the issue and communicating with the manufacturer
and their respective regulatory authorities to determine if their systems are susceptible
to similar degradation.
For a copy of ADB 2012-03, contact Jessica Roger.