Williams County Highway Complex Posted on December 8, 2020 1st Floor Highway Vector Control Weed Control 2nd Floor NDSU Extension – Williams County Recent news Adulticide – Williston – 7/9/2022 Posted on July 6, 2022 Adulticide – Williston – 7/6/2022 Posted on July 5, 2022 Williston Vector Control Treatment Update – 7/5/2022 Posted on July 5, 2022 Adulticide – Countywide – 6/30-7/1/2022 Posted on June 30, 2022 Adulticide – Williston – 6/29/2022 Posted on June 29, 2022 All news ยป