(A) Unaccounted water is the difference between raw water purchased from the Tarrant Regional Water District (TRWD) and metered deliveries to customers. Authorized but unmetered uses would include use for fire fighting, releases for flushing of lines, and uses associated with new construction. Unaccounted water can include several categories:
(1) Inaccuracies in customer meters (customer meters tend to run more slowly as they age and under-report actual use).
(2) Losses due to water main breaks and leaks in the water distribution system.
(3) Losses due to illegal connections and theft.
(4) Other.
(B) The city will continue to monitor and minimize unaccounted water use by periodic visual field inspection of all water facilities, use of fire hydrant meters to quantify the volume of water lost during flushing, review of property occupancy, and monthly comparisons of historical metered usage. Additional measures will be taken at the water treatment plant to quantify process water.
(C) Unaccounted water has varied from 7.48% to 9.89% in the last five years. With the measures described in this plan, the city intends to maintain the unaccounted water below 10% in 2024 and subsequent years.
(Ord. OR-2361-24, passed 4-22-24)