Between September 6 and September 16, 2022, the City of Cheyenne Board of Public Utilities (BOPU) will begin phase II of the airborne electromagnetic (AEM) survey in western Laramie County. A helicopter towing a large hoop from a cable will conduct low-level flights in designated areas as part of a geological and aquifer mapping study. The helicopter will fly over parts of Cheyenne’s groundwater wellfields located between I-80, Horse Creek Road, and west of I-25. This portion of the study is expected to last up to one week.
The AEM survey is being conducted by a specialty airborne geophysical survey company with pilots who are trained in low-level flying. The company works with the Federal Aviation Administration to ensure flights are safe and conducted in accordance with U.S. law. The survey will not take place directly above populated areas and the electromagnetic signals used are far too weak to interfere with electronic or communications equipment.
With around 15% of Cheyenne’s drinking water coming from groundwater wells, this AEM survey will help provide a better understanding of the soil conditions that make the aquifer and how water recharges the aquifer. This is part of a multi-year project to enhance the long-term sustainability of groundwater resources.