On September 2nd, Tarrant County notified the City that three mosquito samples tested positive for West Nile Virus.  These samples were collected near 300 Blk. of L.D. Lockett, the 5200 Blk. of Bransford and the 4100 Blk. of Windermere Court.  Weather permitting, truck mounted spraying will occur within a quarter mile of these sites on Friday and Saturday nights (see maps below). The City of Colleyville will continue larvacide treatments and testing throughout the city.