People

David E. Krebs, P.E.
Education:
Colorado School of Mines; Golden, Colorado
Engineer of Mines Degree (EM) 1966

U. S. Army Engineer Officer School: Fort Belvoir, VA
ROTC – Engineer Officer Basic Course 1967

University of New Mexico; Albuquerque, New Mexico
Basic Management Course 1978

Licenses:
Registered Professional Engineer – Arizona No. 9414
Registered Professional Engineer – Colorado No. 26197
Registered Professional Engineer – Utah No. 3897 (149475)
Registered Professional Engineer – Wyoming No. 1703
Registered Land Surveyor – Arizona No. 17316

Memberships:
Society of Mining Engineers of AIME
Colorado School of Mines Alumni Association
Colorado Mining Association
Rocky Mountain Coal Mining Institute
Denver Coal Club

Experience:

1985 – pres
Grosvenor Engineering Company; Littleton, Colorado
President (previously Vice President)

Responsible for staff and project management. Consulting projects include analyses of operating coal mines in Utah and Missouri; evaluation of coal projects in Wyoming, Colorado, and Alabama for large bank loans; data preparation for litigation regarding coal and metal operations and contracts in Wyoming, Colorado, Montana, Utah, Alabama, and Arizona; precious metal property evaluations in Colorado, Montana, and Nevada; copper mine evaluations for bank loans in Arizona and New Mexico; expert testimony in a coal contract arbitration in Washington D. C., limestone quarry operation in Arkansas, and in coal bank loan case in Arkansas; depositions in coal litigation cases; litigation support for insurance companies on EPA superfund sites; numerous mine property evaluations in Colorado, Montana, Indiana, Missouri, New Mexico, Arkansas, Alabama, and Utah; litigation support in several mine accident cases; dragline study for Florida phosphate operation; evaluation of operating trona mine, appraisal of specialty stone and aggregate quarries, evaluation of surface coal mines in Mongolia and proposed project in Indonesia; engineering support and audit for insurance claim for flooded salt mine shaft in Canada, insurance claim for roof fall at salt mine in Canada, and claim regarding coal mine hoist accident in Alabama. Assist royalty owner in valuing and selling a $36 million precious metal net smelter royalty.

1982 – 1985
Gates Engineering Company; Denver, Colorado
Chief Mining Engineer, Denver Office

Responsible for mining engineering staff and project management. Consulting projects included lignite, gold, and numerous coal evaluations in Texas, Colorado, Washington, Wyoming, and Missouri, plus site visits to operations in Tanzania and Germany. These projects included evaluations for acquisitions, review of mine plans, mine feasibility studies, operating analyses of existing operations, and data preparation for litigation.

1980 – 1982 Ertec Rocky Mountain, Inc.; Denver, Colorado
Senior Mining Engineer

Project manager on numerous mine evaluations for surface coal, lignite, oil shale, and precious metals projects in Colorado, Alaska, Nevada, Texas, and Canada. These consulting assignments included evaluations of coal and lignite properties for purchase, mine design of a small mine to supply coal to a village on the North Slope of Alaska, a conceptual review of open-pit mining methods for a proposed large oil-shale operation, and mine planning for an open-pit gold project.

1979 – 1980 Council of Energy Resource Tribes; Denver, Colorado
Principal Mining Engineer

Furnished technical assistance to 25 CERT member tribes having coal, oil, gas, and uranium on their reservations. Analyzed proposed projects, represented tribal interests and participated in selecting the most desirable proposals and forms of project management for tribal clients.

1977-1979
Western Coal Co. (Now Sunbelt Mining Co.)
(Subsidiary of Public Service Company of New Mexico);
Albuquerque, New Mexico
Mining Engineer

In charge of exploration, reserve calculations, environmental analysis, equipment selection, and mine plan preparation for a new surface coal mine scheduled for 1980+ operation. Eventual production to reach five million tons per year. Project received state permit but was indefinitely postponed.

1974-1977
Stearns-Roger, Inc.; Denver, Colorado
Project Engineer – Mining and Metallurgy Division

Various project duties including equipment selection, bid comparisons, expediting, and client liaison on surface and underground projects including coal, molybdenum, oil shale, and uranium.

1971 – 1974
Peabody Coal Company; Kayenta, Arizona
Area Engineer

Managed all local engineering field and office work for three operating surface coal mines and two prospect areas. One mine was brought into production during this period. Duties included supervision of map preparation, royalty and production reports, reports to USGS, drilling and estimating of reserves, control work for six-mile overland conveyor, reservoir construction, and certified map preparation for Bureau of Mines (MESA). Two of the mines were large dragline operations.

1969 – 1971
Inspiration Consolidated Copper Company;
Inspiration, Arizona

Systems Engineer
Supervised the adapting of geologic and engineering data for computer evaluation, pit design, and grade control.

Senior Engineer
General mine engineering, surveying, estimating, and slope stability studies at a large truck-shovel open pit copper mine.

1967 – 1969
United States Army Corps of Engineers
1st. Lt. Assistant Operations Officer; 35th Engineer Battalion (Combat), Vietnam

Engineering planning, design, inspection, and supervision related to construction projects including roads, bridges, drainage, slope stabilization, soils studies, and base compound construction.

2Lt. Assistant Inspector; Post Engineers, Fort Carson, Colorado

Inspection of civilian contractor construction projects including facility rehabilitation, painting, asphalt paving, and powerlines.

1966 – 1967 Pittsburg and Midway Coal Mining Company; Kansas City, Missouri
Junior Engineer

Property evaluations, land boundaries, mapping, and coal reserve estimates.

Assistant Mine Engineer; Mine 19, Hallowell Kansas

Surveying, pit control, drainage, and haul roads at a surface coal mine employing a large stripping shovel and a dragline.

Selected Consulting Projects at Grosvenor Engineering Company:

1. Insurance Claim – Flooded salt mine shaft, Quebec, Canada.
I was one of the technical consultants working for the insurance carriers monitoring the shaft and mine rehabilitation efforts. Tasks included periodic inspection trips, review of design plans, cost estimates, review of claims for charges; and liaison with insurance representatives, accountants, and attorneys.

2. Engineering reviews as part of bank loan due diligence.
I have worked for banks and financial institutions on several engineering reviews for large loans ($150 to 500 million) to mining companies. These have included coal, gold, copper, and salt projects. Tasks included site inspections, reserve verification, operational audits, equipment and staffing reviews, etc.

3. Sale of Royalty Interest.
I assisted the royalty owner in valuing and negotiating the sale of a net-smelter royalty interest ($36 million) on a large precious metal operation.

4. Coal Industry Review – Mongolia.
I reviewed the coal industry of Mongolia, inspected the two largest coal mines, and made recommendations for improving production. This project was on behalf of a major international bank.

5. Operational Audit – Surface Coal Mine
I assisted in the review of a large dragline stripping operation, made recommendations for cost improvements, mine plan revisions, and monitored implementation of these suggestions.

6. Expert Witness – Coal
I assisted bank defense attorneys in evaluating a failed thin-seam coal project during litigation. Testified in state court. Tasks included reserve estimates, cost estimates, mining plans, historical review of the local mining industry, and pertinent coal market.

7. Expert Witness – Aggregate
I assisted the mine operators defense attorneys in a lawsuit at a limestone quarry. Testified in state court. Tasks included cost reviews, “industry standard” operating practices, mine plans, and reserve recovery.

8. Operational Audit and Mine Planning – Trona
I conducted time-and-motion studies on underground continuous miner sections, reviewed equipment and mine planning. I also prepared mine plans to balance producing areas.


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