The U.S. Geological Survey (USGS) is seeking qualified sources to provide Carbon Dating Services as part of its Water Resources Mission Area. The primary objective is to conduct Carbon-14 (with Carbon-13/Carbon-12) analyses of various environmental samples, including water, sediment, and other materials, to support scientific and regulatory investigations across the United States. These analytical services are crucial for understanding the age and composition of samples collected from diverse environments, including groundwater monitoring wells and areas impacted by hydrofracking or oil exploration. Interested parties must submit their responses by April 11, 2025, at 2:30 PM MST via email to Yvette Sornberger at ysornberger@usgs.gov.