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       CODE: 850.137-010 Buy the DOT:Download/CD-ROM
TITLE(s): SUPERVISOR, CORE DRILLING (construction) alternate titles: test-boring crew chief
Supervises and coordinates activities of field crew engaged in obtaining substrata core samples
for analysis of geological character of ground, nature of ore, or type and strength of foundation
materials: Directs workers engaged in transporting bulldozers, trucks, core drills, and other
machinery and equipment to work area. Directs workers engaged in boring operations and determines
sequence of drilling, bit pressure, rate of feed, and location of drillings to comply with
specifications. Removes cores and samples of formations from borings, and conducts preliminary
geological classification based on color and density of sample, and type of material, such as clay,
gravel, or silt. Marks location and hole number on sample or container for laboratory analysis.
Records location, depth, and soil content of borings for use as reference by design and layout
personnel, and for inclusion in subsequent construction contracts. Cooperates with property owners
and municipal officials to avoid damage to property and equipment. Performs other duties as
described under SUPERVISOR (any industry) Master Title.
GOE: 05.11.01 STRENGTH: L GED: R4 M3 L3 SVP: 7 DLU: 77
ONET CROSSWALK: 81005B First-Line Supervisors and Manager/Supervisors- Extractive Workers
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