Emergency Plan - Grand Strand Water and Sewer Authority

INCIDENT SUPPORT FUNCTION 1
DIRECTION & CONTROL
(ISF-1)
situations as well as very large and complex incidents. The more complex the incident, the
larger and more complex the ICS structure will be. However, use only the elements of the
ICS that are needed and are applicable to each particular incident. Start small and build on
the ICS structure as additional needs arise. The ICS consists of a number of key
components that work together interactively to provide the basis for an effective
operation, including:
• common terminology
• modular organization
• unity of command
• manageable span-of-control
Common Terminology: The ICS provides for single and/or multi-agency involvement
through common elements of organization, terminology, and procedures. Any and all
agencies that become involved in a particular incident will have compatible systems and
will be able to work together effectively.
Modular Organization: The organizational structure is able to adapt to any emergency
or incident to which the agency could be expected to respond. The ICS organizational
structure expands in a logical and modular fashion based upon the size and type of
incident. The organization’s staff builds from the top down with responsibility and
performance placed initially with the Incident Commander. As the need exists or develops,
four separate sections can be created (if necessary) - each with numerous sub-units, which
may be established (if necessary). The organizational structure for any given incident
should be based upon the management needs of that incident. Start with the smallest ICS
structure that meets the needs at that particular time and add elements / positions as they
become necessary. It is important to understand that while numerous ICS positions are
defined, not all of them will be needed at every incident. It is also possible, and often
effective, for one person to fill more than one position, especially at smaller, fewer
complex incidents. If one individual can manage all major function within an area, no
further organization is required
Unity of Command: The ICS provides for a clear chain-of-command up and down the
structure with each person having one designated “supervisor”. It is imperative that the
chain-of-command be observed in relaying and requesting information or instructions.
Manageable Span-of-Control: Span-of-control refers to the number of personnel any
one position directly supervises. In general, within the ICS, the span-of-control of any
individual should range from three to seven, with five as a general rule of thumb. Of
course, there will always be exceptions and the kind of incident, the nature of the tasks,
and the hazards and safety factors will all influence span-of-control considerations
2.1.3.2. COMMAND POST
If the scene of the emergency is localized to a relatively small area, and the event will be
relatively short term, a Field Command Post may be the most effective means of directing
activities at the scene. Designated as the CP, the Command Post will be the field location
from which small or localized incident operations will normally be directed.
Grand Strand Water & Sewer Authority 30 CONFIDENTIAL MATERIALS
Emergency Management Plan SECURITY SENSITIVE
June 7, 2013 NOT FOR PUBLIC DISCLOSURE