Updated 10-Codes

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10-70 Water Supply Is Required

A notification that the first arriving engine does NOT have a positive water source.

Examples include:

1. Dead or Frozen Hydrant

2. Unable to Access a Hydrant

3. Unable to Hookup to a Hydrant

4. Insufficient Hydrant Pressure

The second arriving engine will be designated the “Water Resource Unit” and

must be prepared to initiate water supply operations compatible with conditions

encountered at the scene. Their primary objective is to assist the first arriving

engine to obtain a positive water source.

Options include:

In-Line Pumping

Water Relay

When signal 10-70 is transmitted the Dispatcher shall:

Notify the second arriving engine that they are designated as the

Water Resource Unit.

Notify the IC of the identity of the designated Water Resource Unit