Through a new type of water treatment technology, officials in Lake Elsinore have been injecting oxygen into the city’s historic lake to treat the water and improve the local ecosystem. In February, Lake Elsinore installed its first Nanobubble Barge, built and operated by Moleaer Inc. The barge injects “nanobubbles” into the lake, which helps remove contaminants like algae toxins, pathogens and other harmful material. After seeing improvements to the water quality, the City Council approved the purchase of two more barges, officials announced.