This form should be completed and submitted to EPA Region 8 when a water system in Wyoming or located on Tribal Lands in EPA Region 8 (CO, MT, ND, SD, UT or WY) is being evaluated to determine if it may be serving drinking water to the public. This information may be requested from either newly constructed entities, newly purchased entities or other existing entities. This form is also available in MS Word format.

• EPA R8 Drinking Water System Basic Information Form (PDF)(6 pp, 233 K, 07/07/2020)