SAN ANTONIO (AP) - A review finds a 2007 fire at a Texas
refinery probably happened because water froze in a pipe -- and
allowed the release of liquid propane when it thawed.
The report today from the U.S. Chemical Safety Board involves
the McKee Refinery, about 65 miles north of Amarillo.
The panel found San Antonio-based Valero Energy didn't have an
effective program to identify and protect from freezing pipelines
and equipment that were out of service or infrequently used.
It also found the refinery didn't apply company policies on
emergency isolation valves.
The refinery exploded in February 2007. Three workers were
Valero spokesman Bill Day says the company has been implementing
new safety measures. Day says that includes removal of unused
pipelines and the installation of remotely operated shut-off
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