Los Angeles officials urged nearly 10,000 households in two communities to refrain from using tap water until further notice. “On Tuesday, a valve failed during repairs at a pump station that connects to a water tank that serves Porter Ranch and Granada Hills, prompting about 9,200 households to lose water service,” the Los Angeles Times noted. Officials aim to restore water service by early Monday morning. Video footage showed Porter Ranch residents lining up for bottled water. Cars are lining up in #PorterRanch, as local residents pick up bottled water. This. After a valve in the #LADWP water system got stuck. And water stopped flowing to 9200 customers. Repairs will take days. @knxnews pic.twitter.com/NUOkIUpy8x — Jon Baird (@KNXBaird) August 6, 2025 The Los Angeles Department of Water & Power wrote: LADWP crews are making significant progress to restore water service to the Granada Hills and Porter Ranch communities. Ongoing repairs have reached a critical point that require the full cooperation of residents in the affected area to refrain from using the tap until further notice. Using water will delay our progress for repairs, repressurizing the system and completing sampling and testing to lift the Boil Water Notice. To begin replacing the broken valve, LADWP crews had intended to begin emptying the water from the pipe connecting to the temporary water source tonight at 8 p.m. However, at approximately 5:00 p.m., the pipe blew out and spilled the water onto the street. The pumps and valves have been shut and while residual water in the pipe continues to flow, this does not impede our plans and continued progress to start the dewatering process. The temporary water source feeding the system is now shut and as such, there is very limited water supply in the system. It is paramount that customers keep taps closed, sprinkler systems off, and pool filling systems shut down. Following this guidance will help speed up full water service restoration as we refill the tank and repressurize the system. LADWP will begin water quality sampling and testing as soon possible. 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 that we send the water samples to the lab and get results that may take about 18 hours. These are critical steps to restore water quality and ultimately lift the Boil Water Notice. Granada Hills and Porter Ranch Communities: We’re here to help. Visit our customer resource page at:  https://t.co/fdXvK45XNt pic.twitter.com/ZaHbU9ZF8K — LADWP (@LADWP) August 9, 2025 “Don’t stop boiling that water yet,” one X user advised. “I know Karen Bass said crews were working around the clock to restore safe water to thousands of people in the San Fernando Valley, but another portion of the water main broke in Granada Hills delivering a major blow to repair efforts,” he added. Don’t stop boiling that water yet… I know Karen Bass said crews were working around the clock to restore safe water to thousands of people in the San Fernando Valley, but another portion of the water main broke in Granada Hills delivering a major blow to repair efforts. pic.twitter.com/ovs83b3KPD — Kevin Dalton (@TheKevinDalton) August 10, 2025 More from the Los Angeles Times: Los Angeles officials are pleading with residents in Porter Ranch and Granada Hills not to flush toilets or water lawns amid a days-long water service outage, saying it could push back repairs. On Tuesday, a valve that controls water flow into the affected communities broke, interrupting service to roughly 9,200 households just as a heatwave gripped the region, with temperatures hitting the high 90s to low 100s. A day after the break, the L.A. Department of Water and Power issued a notice to boil water in parts of Porter Ranch and Granada Hills, advising that failing to do so “could result in stomach or intestinal illness.” By Friday morning, many customers saw their water restored, but DWP urged even those with water in their taps to stop using it. While crews are digging a deep pit to reach and repair the broken valve, others are working to fill and pressurize a large water tank that serves the area. However, the pressure dropped overnight as residents went about their business. “We are very concerned that if people continue to use the water that is coming out of their faucets today, it is going to delay the ability of the [Los Angeles Department of Water and Power] to get the line back and restored, and for your use of water to be back to normal, so that you don’t have to boil water, so that you don’t have to conserve,” L.A. Mayor Karen Bass said during a press conference on Saturday afternoon.