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Update: Water Service Restored to the Granada Hills and Porter Ranch Areas, Water Boil Notice Still In Effect

A Boil Water Notice Has Been Issued for Portions of the Porter Ranch and Granada Hills areas. Click for More Details.

Crews Make Major Progress to Restore Water Service to Granada Hills & Porter Ranch Customers

Urgent Phase of Repair Work — Customer Cooperation Vital to Progress 

Incident Update #11  August 10, 2025 – AM Update 

LADWP crews weld section of pipe to large-diameter water pipe.

LADWP crews made major progress overnight and early this morning to restore full water service to Granada Hills and Porter Ranch. The broken valve was cut and removed and a new section of pipe that will allow normal water flow to the 10-million-gallon tank serving the area is being welded in place as of 9AM Sunday. During this time, it remains very important that customers in the area avoid using tap water until further notice.  

As a reminder, using water will delay our progress for repairs, repressurizing the system and completing sampling and testing to lift the Boil Water Notice. The community’s diligence with these efforts is crucial to help preserve water pressure required for restoration as crews continue to work as quickly and safely as possible.  

Broken valve removed after days of excavation

WATER QUALITY RESTORATION  
LADWP will begin water quality sampling and testing as soon as our pipe and water tank have been refilled and pressurized. We are working with our regulators in the Division of Drinking Water to make sure we follow the strict guidelines for testing and reporting, which requires us to send the water samples to the lab and get results that may take about 18 hours and repeat the process again for confirmation. These are critical steps to restore water quality and ultimately lift the Boil Water Notice.  
   
The Boil Water Notice can be accessed by clicking this link: BOIL WATER NOTICE FOR PORTIONS OF PORTER RANCH AND GRANADA HILLS (ladwpnews.com).  
www.ladwp.com/WaterQuality, which includes the Boil Water Notice, frequently asked questions, and an interactive map to enter your address to determine if the Boil Water Notice applies to you. Regular updates related to this incident are also available on our newsroom at www.ladwpnews.com. 

SUPPORT FOR CUSTOMERS 

We have distributed more than one million bottles of water, and more than 1,200 gallons of water delivered to vulnerable home-bound customers. We continue to provide support to vulnerable customers, including seniors and customers with disabilities and functional needs, who are unable to visit the bottled water distribution centers.   

The cooperation of our customers makes a big difference, and we truly appreciate their support. Residents in the affected communities can help by following these guidelines:   

  • Use bottled water for drinking and cooking.   
  • Keep all indoor and outdoor taps closed.   
  • Refrain from doing laundry and dishes.   
  • TURN OFF all sprinklers and smart irrigation systems—these automatically draw water from the system.  
  • TURN OFF swimming pool automatic fill systems.  

 LADWP has also deployed a range of support services, including bottled water distribution, recycled water for outdoor use and toilet flushing, and access to mobile showers and laundry facilities.  

Assistance is available at five locations. Please note: Different services are provided at different locations:    

  1. 7 AM – 9 PM, Holleigh Bernson Memorial Park, 20500 Sesnon Blvd, Porter Ranch, CA 91326: Water bottle distribution, recycled water distribution, restrooms, showers, mobile laundry units  
  2. 7 AM- 9 PM, O’Melveny Park, 17300 Sesnon Blvd., Granada Hills, CA 91344: Water bottle distribution, recycled water distribution, restroom  
  3. 7 AM – 9 PM, Intersection of Tampa Ave. And Sesnon Blvd. on the border of Northridge and Porter Ranch: Water bottle distribution and recycled water distribution  
  4. 5 AM – 10 PM, YMCA, 11336 Corbin Street, Porter Ranch, CA 91326: Showers, mobile laundry units  
  5. 5 AM – 10 PM Intersection of Rinaldi and Louise Ave: Showers and restrooms

We encourage our vulnerable customers, including seniors, and customers with disabilities and functional needs who are unable to visit the bottled water distribution centers to call LADWP’s call center at 1-800-DIAL-DWP (1-800-342-5397) to “Report an Outage” and request to speak to a customer service representative.    

For individuals who are Deaf, hard of hearing, or have a speech disability, dial 711 to connect with California Relay, or call 1-800-HEAR-DWP (1-800-432-7397) for TTY.  
 
BACKGROUND ON WATER LOSS AND ONGOING REPAIR WORK   

On August 5, while water system crews were making repairs at a pump station that connects to a 10-million-gallon water tank that serves the area, a valve that controls the flow of water broke during repairs and failed to reopen. As a result, the water flowing into a 54-inch-diameter pipe serving the area was cut off.  

This has led to a water service outage in the general area bounded by Rinaldi Avenue to the south, Balboa Blvd to the east, De Soto Ave to the west and the foothills & hills to the north. For specific boundaries, please refer to the map below.  

We understand how disruptive this situation has been for our customers, and we want to assure the community that restoring water service safely and swiftly remains our top priority. Our crews are working tirelessly on-site, around the clock, until full service is restored. We remain committed to keeping you informed and supported every step of the way.   

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