Page 21 - 2022 Sustainability Report

COMPANY OVERVIEW

In his latest project, which he said was among the most involved
of his career, Bieber was instrumental in permitting the expansion
of Parkdale Quarry about 60 miles southwest of Colorado City.
The expansion added 700 acres of mineable property within a
1,400-acre Bureau of Land Management lease area.
Bieber said his role was to work closely with the community as the
project moved forward, reaching out to speak with local groups
and people in order to make sure they fully understood the
operation’s plans. Partially because of his efforts, the Division of
Reclamation, Mining and Safety ultimately approved the project
without receiving a single public objection, he said. “This was not
merely accidental or good fortune, but the culmination of a long-
term and deliberate strategic effort that rested on a foundation
built by the project team years before permitting started,” he said.

Bieber has also served with several industry organizations throughout
his career, including the Colorado Section of the Society for Mining,
Metallurgy & Exploration and the Association of Environmental and
Engineering Geologists. He currently serves as director for the Forum
Geology and Survey Manager David Bieber at Spec Agg
Quarry in Golden, Colorado. Bieber is set to retire in 2023 on the Geology of Industrial Minerals and is a member of the
after nearly four decades of service to the mining Executive Committee of the American Geosciences Institute.
industry.

With experience working from New England to the Rocky Mountains to the West Coast, Bieber said he has focused on
aggregate mining for most of his career. Division of Reclamation, Mining and Safety Senior Environmental Protection
Specialist Michael Cunningham said the industry has been made stronger as a result.

“His professionalism and his dedication to advancing reclamation, along with his contributions to the industry and
academia, exemplify the spirit of the Jim Pendleton Award,” said Cunningham, who nominated Bieber for the honor.

Michael Cunningham (left) of Colorado’s
Division of Reclamation, Mining and
Safety presents the Jim Pendleton Award
to Martin Marietta’s David Bieber at the
Colorado Mining Association’s Annual
Awards Luncheon.

MARTIN MARIETTA 19