The Martis Valley Groundwater Basin stands as one of the region’s most valuable natural resources, providing mountain-filtered water to local communities. Recognizing its importance, the Truckee Donner Public Utility District (TDPUD) is moving forward with an update to the Martis Valley Groundwater Management Plan (GMP), ensuring the long-term sustainability and quality of this critical water supply. … To safeguard the basin’s future, TDPUD has collaborated with the Northstar Community Services District and Placer County Water Agency since 2013, implementing proactive groundwater sustainability efforts. The GMP, which undergoes a review every five years, provides a framework for responsible management and conservation.