The Vallecitos Water District received two awards for its innovative use of technology to reduce algae blooms at Mahr Reservoir, it was announced Thursday. The district received the “Excellence in Action” national award from the WateReuse Association and the “Innovation and Resiliency” state award from the California Association of Sanitation Agencies for its use of an ultrasound technology to address water quality at the Stanley A. Mahr Reservoir with a reduced need for chemical treatment.