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Glendale Water & Power delivers about 9.0 billion gallons of safe drinking water to the City’s 33,500 customers. We continue to operate the system day and night with greater than 99.9% reliability. Currently 65% of our water is imported from the Metropolitan Water District and we produce approximately 34% of our drinking water from local sources, including groundwater. About 7% of our supply is from the City’s Glorietta wells and the Verdugo Park Water Treatment Plant. Each year we identify certain pipes that are in need of cleaning and relining or replacement to improve water quality, increase pressure and minimize leakage. In the next few years our focus will be on replacing aging pipes, cleaning and lining pipes to increase reliability in water delivery and also focus on new well development in order to rely less on imported water.

Well Development

In 2011 we discovered an old well abandoned by previous utility districts long before GWP existed. The well now known as the Foothill Well was tested and determined it was feasible to use for our groundwater supplies. We built a 3,420 foot pipeline connecting the well to GWP’s New York Reservoir and put the well back into service July 2011. Currently the Foothill Well produces up to 200 gallons per minute and each gallon collected means one less gallon of water purchased. The well will saved about $245,000 per year on imported water costs. Glendale Water & Power will continue to work on new well development in order to increase our local groundwater supplies.

Protecting and Safeguarding Our Water System

Cross Connection Control Program

In order to protect our water supply system, GWP has created the Cross Connection Program to ensure that non-potable water or chemicals used in a system or equipment does not end up in our drinking water pipeline as a result of "backpressure" or "backsiphonage." Learn more about the Cross Connection Program.

6528-A-Reduced Pressure Principal Assembly

6561-A-Std Fire Line with DCDA

6762-A-Installation Requirements for BFP

Water Quality

Your water is sampled and tested weekly both internally and by outside laboratories. We continue to exceed all standards and health requirements. We remain a leader in new technologies to remove Chromium 6 from local groundwater sources. Our two new Chromium 5 testing and treatment facilities are operational. Each year GWP produces a Water Quality Report that describes our water quality procedures and results from our frequent water tests and mails it to each customer. All reports can be downloaded here. Learn more about our Chromium 6 facilities.

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