News Did You Hear It? Occoquan Dam Siren to be Tested on Wednesday November 20 By Aya Karouane Published November 20, 2024 at 10:25AM The Occoquan Reservoir provides drinking water for 1.5 million people in Northern Virginia. [Photo: Fairfax Water] This article is FREE to read. Please Sign In or Create a FREE Account. Thank you. Author Aya Karouane I'm a high school junior at Mountain View High. A Stafford local, I love to learn more about our area! View all posts #Fairfax Water #Occoquan #Occoquan Dam #Public Safety #Safety #WBL