DEPARTMENT OF THE ARMY ER 1110-1-8157
U.S. Army Corps of Engineers
CECW-ET Washington, DC 20314-1000
Regulation 1 October 2002
No. 1110-1-8157
Engineering and Design
GEOTECHNICAL DATA QUALITY MANAGEMENT FOR
HAZARDOUS WASTE REMEDIAL ACTIVITIES
1. Purpose. This regulation prescribes Geotechnical Data Quality Management (GDQM) re-
sponsibilities and requirements, from initial investigation through closeout at sites contaminated
with hazardous, toxic, and radioactive waste. The intent is to assure that a site is sufficiently
characterized, and that geotechnical data of acceptable quality are obtained and used properly
within the project.
2. Applicability. This regulation applies to Headquarters U.S. Army Corps of Engineers
(HQUSACE) elements, major subordinate commands (MSC), districts, laboratories, and separate
field operating activities (FOA) responsible for site characterization, design, remediation, and
geotechnical and materials testing work related to hazardous, toxic, and radioactive waste sites.
3. Distribution. Approved for public release, distribution is unlimited.
4. References. References are provided in Appendix A.
5. Definitions.
a. Geotechnical Professional. A geotechnical engineer, geological engineer, geologist,
hydrogeologist, geochemist, or geophysicist.
b. Geotechnical Data. Data that characterize the physical properties of earth materials (soil,
rock, water, vapor) occurring at or below ground surface, and the interactions among these
materials and contaminants. In hazardous, toxic, and radioactive waste (HTRW) work these
data, in addition to chemical data, are used for determining the nature and extent of chemical and
radioactive waste contamination, and contaminant fate and transport. The data are also used for
identifying, evaluating, and designing appropriate remedial actions.
c. Geospatial Data. Non-tactical data referenced either directly or indirectly to a location on
the earth. Geospatial data identify the geographic location and characteristics of natural or con-
structed features and boundaries on the Earth.
