North Platte River Maps
The “Green Area” maps depict the geographic boundaries of the North Platte River sub-basins where groundwater resources are considered non-hydrologically connected to the North Platte River and its tributaries under application of the 2001 Modified North Platte Decree (Decree) criteria, and subsequently adopted for the Wyoming Depletions Plan as part of the Platte River Recovery Implementation Program (Program). The Green Area maps are broken into sub-basin areas as depicted on the attached Figure 1. Three of these sub-basin maps were developed as a result of the settlement of the 1986 Nebraska v. Wyoming lawsuit as documented in the Decree and Final Settlement Stipulation and adopted by the U.S. Supreme Court. These sub-basin maps are entitled: Above Alcova Dam, Alcova Dam to Guernsey Dam, and the Lower Laramie Basin.
Groundwater and the Green Area Maps
Surface Water and the Green Area Maps
The Green Area maps have no Decree implications for surface water sources in the North Platte River Basin in Wyoming, with the exception of springs. Irrigated acreage that relies solely on spring sources emanating within Green Areas are considered to be non hydrologically connected and are not accounted for under the acreage limits contained within the Decree.