The California Water Institute at Fresno State is leading a multi-county Flood-Managed Aquifer Recharge (FloodMAR) initiative across Merced, Madera, Fresno, and Tulare Counties that reframes a regional climate threat as an implementation opportunity. Groundwater basins across the San Joaquin Valley remain in critical overdraft under SGMA mandates while billions of gallons of floodwater leave the region unused every year, and agencies have historically managed both problems in isolation. The initiative brings together groundwater sustainability agencies, irrigation districts, and flood control agencies around a shared mission: mapping priority recharge zones, building coordinated flood response protocols, and empowering local water managers and landowners with the tools and data needed for on-the-ground action. A core innovation is the establishment of a Recharge Response Team designed to enable rapid, coordinated action when high-flow opportunities arise — replacing the fragmented agency response that left communities without a single point of accountability during the 2023 floods. The project pairs technical coordination with deep community engagement, including culturally grounded outreach tools like a Recharge Lotería developed for Spanish-speaking communities, and pre- and post-event surveys that demonstrate measurable knowledge gains among participants. The project is currently advancing priority zone mapping, finalizing the RRT governance structure, and translating planning outputs into actionable recharge projects ready for the next high-flow event.