Figure 2a. Portion of the Gray quadrangle, Significant Sand and Gravel Aquifer map series. Note the number of data points (observation wells and test borings) along the eastern boundary of the aquifer. In contrast, there is no subsurface information along the western boundary of the aquifer. As a result of the density of information, the eastern boundary can be considered more "accurate" than the western boundary. The western boundary is based on more subjective information such as an interpretation of topography and other surficial geologic indicators. Refer to Figure 2b and Figure 2c for more information on aquifer boundaries.

---

Last updated on October 6, 2005

Maine.gov | Department of Conservation | MGS Home | Site Policies