On Wednesday September 16th, Tarrant County notified the City that four mosquito samples tested positive for West Nile Virus.  The samples were collected from the vicinity of 4100 Windermere Ct, 5200 Bransford, 500 Forest Meadow, and 3200 Queensbury.  Weather permitting, truck mounted spraying will occur within a quarter mile of these sites on Wednesday and Thursday nights (see map below). The City of Colleyville will continue larvacide treatments and testing throughout the city.