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Cobb Rock Quarry Named 2008 Outstanding Mine Operator

Friday, August 7th, 2009

Cobb Rock Quarry, owned and operated by CalPortland Company, formerly known as Glacier Northwest, has been named the outstanding mine operator in Division 1 by Oregon’s Department of Geology and Mineral Industries (DOGAMI).
According to DOGAMI, the award is based on the “neat, orderly, stable and safe” development of the site.
“We’re very proud of our people and their record of safe and environmentally responsible management of Cobb Rock Quarry,” said Scott Nicholson, CalPortland’s director of aggregates for the Northwest Division. “This award is really about recognizing their hard work every day to ensure our operation not only runs smoothly, but also meets all the environmental requirements.”
According to DOGAMI: “Cobb Rock, Inc. was chosen as Outstanding Operator, Division I based on their long record of voluntary reclamation, a well-planned and implemented operation and their outstanding compliance record with the DOGAMI and Department of Environmental Quality permits issued for this site.
“These awards are an important recognition to those owners and operators that go beyond the basic requirements of rules and regulations,” said Vicki S. McConnell, state geologist and director of DOGAMI. “By using innovative ideas and responsible techniques of reclamation they are working to improve the environment and be good neighbors.”
The Cobb Rock Quarry is located west of Beaverton. Mining began at the site 51 years ago. In 1972, 87 acres were determined to be eligible to be limited exempt status, which allowed mining within a boundary established prior to 1972. The limited exempt status for the site was first granted in 1974 and remained in effect until 1986. A new operating permit was issued that year to expand the quarry beyond the original 1972 boundary.
The first DOGAMI inspection report for the site, issued in August 1974, indicated the quarry had an excellent long-term development plan, that all soils were being stock-piled for later use in reclamation and that trees had been planted along the site’s property line to provide visual screening for neighbors.
A 1980 inspection report noted that, although reclamation was not required, it was being conducted in mined out areas concurrently as mining was progressing in other areas. This voluntary reclamation continues today. Overburden from new mining areas is spread over mined-out areas and vegetation is planted, which limits the area within the mine that is disturbed at any one time.
A buffer of material has been left undisturbed above the groundwater aquifer beneath the mine. A storm water control system has been established and improved over the years to effectively contain and control surface water at the site.
” … The companies … we recognize with these annual awards really show a deep commitment to the environment and to the communities where they are based,” said Gary Lynch, assistant director for regulation for DOGAMI’s Mineral Lands Regulation and Reclamation program.
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