(1) "Drought Management Plan" means a unique individual watershed or stream reach plan to address site-specific stream flow and fishery issues in the event of drought that has been reviewed and accepted by the department as a preferred drought management alternative. The plans are usually created by watershed groups composed of local agriculture, conservation, business, and angler interests.

(2) "5th percentile of daily mean values for this day" is the daily stream flow value that, based on a scale of one hundred, indicates the percent of a distribution equal to or below it. For example, a display of daily stream flow conditions at the 5th percentile is equal to or greater than only 5 percent of the discharge values recorded on this day of the year during all years that measurements have been made. Flows that are 5th percentile or lower represent an extreme low flow condition.