About Your Water

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Where Your Water Comes From

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.

 


 

Keeping Glendale's Water Safe

Water Quality Report / Consumer Confidence Report

Fluoride in Drinking Water

Water Hardness

Hexavalent Chromium Removal Research Project

PFAS in the News
Glendale Water & Power has been helping to clean-up the groundwater in the San Fernando Basin for almost 20 years as part of an EPA Superfund clean-up project called the Glendale Operable Unit. As part of the clean-up process a series of wells extract groundwater then send it to the Glendale Water Treatment Plant for clean-up to stringent drinking water standards. Various regulating agencies routinely ask GWP for assistance in monitoring remaining and new contaminants in the basin. Recently, the State Water Resources Control Board, Division of Drinking Water, requested that GWP perform additional sampling for PFAS in the wells used in the clean-up project prior to treatment. The treatment plant uses multiple technologies to clean-up the groundwater. One of the technologies is Granular Activated Carbon, or GAC for short, and this treatment technology removes PFAS and other contaminants. At the discharge from treatment plant, which is the point of compliance for drinking water standards and where the water enters the water system, PFOA and PFOS have not been detected. The Glendale Water Treatment Plant continues to be an important and successful project for maintaining and protecting Glendale’s local water supply.

The chemicals that Glendale is assisting the state in monitoring are PFOA and PFOS and so far here is what we’ve found:

 

 

PFOA (ng/L)

1stQuarter Test

2ndQuarter Test

3rdQuarter Test (pending)

4thQuarter Test (pending)

Sample Location

5/8/2019

9/18/2019

 

 

GS-1

23

21

 

 

GS-2

4.2

4.0

 

 

GS-3

ND

ND

 

 

GS-4

ND

ND

 

 

GS-5

2.4

ND

 

 

Glendale Water Treatment Plant

ND

ND

 

 

Grandview Blend*

ND

ND

 

 

 

 

PFOS (ng/L)

1stQuarter Test

2ndQuarter Test

3rdQuarter Test (pending)

4thQuarter Test (pending)

Sample Location

5/8/2019

9/18/2019

 

 

GS-1

33

25

 

 

GS-2

3.9

3.5

 

 

GS-3

ND

ND

 

 

GS-4

ND

ND

 

 

GS-5

ND

ND

 

 

Glendale Water Treatment Plant

ND

ND

 

 

Grandview Blend*

ND

ND

 

 

 
Notes:

PFOA - Perfluorooctanoic acid (NL: 5.1 ppt)
PFOS - Perfluorooctanesulfonic acid (NL: 6.5 ppt)

* Compliance Point - Grandview Effluent where treatment plant water is blended and stored before being served as drinking water.

ng/L - (nanogram per liter which is equivalent to parts per trillion)
NL - Notification Level
ND - Not Detected

Click here to visit the EPA website and find out more about PFAS, and PFAS in the environment.

 


 

Requesting Changes To Your Water Service

Water Supply Information

Information on Fire Flow Availability for Building Permit

 


 

Water Conservation Resources

Water Saving Tips

How To Program Your Irrigation Controller

BeWaterWise.com

Water Rebates from the Metropolitan Water District of Southern California

GlendaleWaterWiseGardening.com

 

 


 

Water Rates

Click here to view GWP's Water Rates