Unlimited Release Printed July 2024 Annual Groundwater Monitoring Report Calendar Year 2023 Prepared by Sandia National Laboratories, Albuquerque, NM Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration undercontract DE-NA0003525. Approved for public release; further dissemination unlimited.