Over the weekend, he said, water production declined rapidly. Baugh has previously written about public housing, county government and transportation for the Express-News. An infestation of the invasive species on a submerged pump has forced the company to stop using part of its water treatment facilities. Get the San Antonio area's best journalism, every weekday morning. A submersible pump is coated with zebra mussels, an invasive species that has been in Canyon Lake since 2017. By signing up, you agree to our Terms of Use and acknowledge that your information will be used as described in our Privacy Notice. Spokeswoman Patty Gonzales said the authority’s protocol includes a visual inspection by the water-quality team and the use of divers and remotely operated underwater vehicles to identify the presence of zebra mussels. The Canyon Lake Water Supply Corp. has asked some of its customers to cut back on water use until the affected water-treatment plant is back in full operation. Jackson said a recent inspection revealed zebra mussels on screens in the system. Family wants Schertz officers fired after police use Taser on... Bexar election officials working on final mail-in ballots, South San ISD voters elect two new board members. After 10 years covering City Hall for the San Antonio Express-News, Baugh moved into the environment beat in February 2019. The zebra mussel's sharp shell can cause a lot of harm, even when it's dead. | jbaugh@express-news.net | Twitter: @jbaugh. The pump is being cleaned this week. Because they reproduce by spewing veligers into the water, zebra mussels are dependent on a current to spread their populations. Prevention, therefore, is the best way to keep a water body clean of zebra mussels. On Million Man March’s 25th anniversary local attendees still... SAHA CEO hired to lead Denver Housing Authority, Republican Gonzales comes out on top in TX-23. Zebra mussel infestation spurs Canyon Lake water utility to ask customers to cut back Josh Baugh July 25, 2019 Updated: July 25, 2019 11:53 … The company has asked its customers in Bulverde, Spring Branch and on the north side of Canyon Lake to limit their water consumption to essential indoor use only. On ExpressNews.com: After Lake Dunlap's dam partially collapsed, researchers count fatmuckets and pimplebacks, “It will take several days to remove, inspect, clean, and restore pumps to service. The treatment plants filter and disinfect water to prevent organisms such as the zebra mussel from entering the public water supply, he said. The pump was removed from service this week for inspection and cleaning. Zebra mussel infestation spurs Canyon Lake water utility to ask customers to cut back. Though that process is primarily for the removal of biofilm, it also purges zebra mussels, Gonzales said. They’re prolific reproducers and damage habitat and food chains for natives aquatic species. Zebra mussels were first confirmed in Canyon Lake two years ago, but they’ve been in the U.S. for decades. Zebra mussels are armed with rootlike threads of protein, called “byssal threads,” that allow them to firmly attach themselves to hard surfaces such as rocks, native mussels, docks or boats. After zebra mussels were discovered in Canyon Lake, the Canyon Lake Water Supply Corp. instituted a semiannual inspection schedule at its three water-treatment facilities on the lake. The GBRA also uses a chemical — sodium permanganate — and a process called “pigging,” which applies water pressure to force a bristle-clad plug through pipes to clean “biofilm,” a layer of algae on the interior of pipes. Prevention is the best way to keep a water body clean of zebra mussels. Read him on our free site, mySA.com, and on our subscriber site, ExpressNews.com. “Water quality has not been impacted.”. Sophie Koch. Once a population of zebra mussels has become established in a water body, there is very little to be done to remove them. They’ve since been removed, he said. Further investigation found that the mussels infested submerged pumps. Zebra mussels living in Canyon Lake infested a submersible pump, part of the Canyon Lake Water Supply Corp.’s water treatment facilities. According to the U.S. Geological Survey, they likely first arrived in the Great Lakes from European vessels that used contaminated water for ballast.