GWA working on water loss reductions

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Water loss could potentially decrease by as much as 45 percent, according to a news release from the Guam Waterworks Authority issued Sunday afternoon.

The GWA release follows an audit issued by the Office of Public Accountability on Friday which reported that approximately 61% of the water produced annually by GWA is not consumed or contributing to GWA’s revenue, due to either water losses from leaking and water line breaks or unauthorized or unbilled consumption.

Sunday’s GWA news release cites the results of GWA’s District Metered Area pilot program, which originally launched in October 2018.

The study monitored inflow and outflow points in three control areas around the island to allow leak detection teams to more effectively assess and repair leaks, as well as better estimate the overall cost savings.

“The results from our water loss reduction pilot program are extremely promising,” said GWA General Manager Miguel Bordallo in the release. “Based on these initial tests … we estimate that when implemented island-wide, this program could save GWA upwards of $15 million over a 15-year period.”

He said GWA’s water loss control team is using what was learned in the pilot phase and “applying that knowledge to the implementation of a comprehensive water loss control program with 50 District Metered Areas throughout the island.”

GWA also says that water loss can also result from theft, metering inaccuracies, unauthorized or unbilled consumption and authorized consumption, like fighting grass fires and other fire suppression events.

READ the release from GWA in FULL below:

GWA CONTINUES ITS ONGOING ACTIONS TO DRASTICALLY REDUCE WATER LOSS

Water loss is a problem that affects water utilities around the world and is
not an isolated local problem. Because this is an industry-wide issue, many
of the world’s water service providers use a standard approach for loss
mitigation. Guam Waterworks Authority continues to implement best practices
and seeks innovative and creative solutions to further reduce water loss on
our island.

        Water loss could potentially decrease by as much as 45 percent,
according to the results of GWA’s District Metered Area pilot program, which
originally launched in October 2018.  The study monitored inflow and outflow
points in three control areas around the island to allow leak detection
teams to more effectively assess and repair leaks, as well as better
estimate the overall cost savings.

        “The results from our water loss reduction pilot program are
extremely promising, and based on these initial tests, and we estimate that
when implemented island-wide, this program could save GWA upwards of $15
million over a 15-year period,” said GWA General Manager Miguel Bordallo.
“Our water loss control team is using what was learned in the pilot phase
and applying that knowledge to the implementation of a comprehensive water
loss control program with 50 District Metered Areas throughout the island.”

        In addition to leaks, water loss can also result from theft,
metering inaccuracies, unauthorized or unbilled consumption. Additionally,
authorized consumption, such as fire suppression adds to the water loss
total.  GWA’s strategic water loss reduction plan expands to regular large
meter testing and repair, random small meter testing and calibration and
monthly billing integrity checks.

        “First and foremost, our top priority is delivering safe, clean
water and wastewater services to our customers,” added GWA Assistant General
Manager of Operations Thomas Cruz.  “GWA’s strategic plan for water loss
reduction will help us manage our resources more responsibly with better
efficiency and sustainability”

In addition to proven industry best practices, GWA is developing unique and
creative methods to further its mission towards better mitigation of current
or future water loss.

“Our water is a valuable asset for our people and we will do everything in
our ability to protect it,” said Bordallo.

For more information on this or other GWA projects, visit
guamwaterworks.org.