Select an aquifer: Info
EXPLANATION STUDY AREA APPROXIMATE OUTCROP & SUBCROP AREA OF AQUIFER (UNDIFFERENTIATED) APPROXIMATE SUBSURFACE BOUNDARY OF AQUIFER POTENTIOMETRIC CONTOURShows altitude at which water level would have stood in tightly cased wells, September 2017.Dashed where approximately located.Hachures indicate depression. Contour interval 20 or 50 feet. North American Vertical Datum of 1988 (sea level). WELL WITH WATER LEVELHover for September 2017 data.Click for Hydrograph.Data in altitude of water level, feet above or below (-) sea level.