POA board made aware of water loss in system

The POA is continuing to examine the water system's usage through water metered and water produced.
Recently, David Whitlow produced a report for the period of November 1, 2009 to October 31, 2010. The overall percentage of loss is 20.61-percent.
The breakdown is as follows.
Unaccounted for water report / Gallons
Total water produced / 847,868,600
Total water sold / 626,499,130
Water used in flushing based on two billing cycles for water treatment plant/25,436,058
Water used by POA water plant based on 3-percent of production / 21,196,715
Water lost / 174,736,697
Water loss / 20.61-percent