Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Williston Water Treatment Plant ← View details 4806 U.S. 85, Williston, ND 58801 +1 701-577-7104