EP 1110-1-18
24 Apr 00
Section II
Terms
Action Memorandum
Approves time-critical removal action and also concludes the engineering evaluation/cost
analysis. Provides a concise, written record of the decision to select an appropriate removal
action. As the primary decision document, it substantiates the need for a removal action,
identifies the proposed action, and explains the rationale for the removal action selected.
Active Installations
Installations under the custody and control of DOD. Includes operating installations, installations
in a standby or layaway status, and installations awaiting closure under the Base Realignment and
Closure (BRAC) legislation.
Active Range
A military range that is currently in service and is being regularly used for range activities. (40
CFR 266.201)
Administrative Record
The body of documents that "forms the basis" for the selection of a particular response at a site.
Documents that are included are relevant documents that were relied upon in selecting the
response action as well as relevant documents that were considered but were ultimately rejected.
(ER 1110-1-8153)
Anomaly
Any item that is seen as a subsurface irregularity after geophysical investigation. This
irregularity should deviate from the expected subsurface ferrous and non-ferrous material at a site
(i.e., pipes, power lines, etc.).
Anomaly Avoidance
Techniques employed by EOD or UXO personnel at sites with known or suspected OE to avoid
any potential surface UXO and any subsurface anomalies. This usually occurs at mixed hazard
sites when HTRW investigations must occur prior to execution of an OE removal action.
Intrusive anomaly investigation is not authorized during ordnance avoidance operations. (ER
1110-1-8153)
Anomaly Review Board (ARB)
The ARB is a technical group established to review decisions and recommendations made by the
OE project team on the detection and evaluation of subsurface anomalies. ARBs should be used
only in exceptional circumstances, such as at CWM sites.
Glossary-4
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