Madrigal-Ballestero, RógerGleeson, TomLópez-Ruiz, MariaclaraCastillo-Cruz, Aaron Benhur2025-09-222025-09-222025Madrigal-Ballestero, R., Gleeson, T., López-Ruiz, M., & Castillo-Cruz, A. B. (2025). Bright but flickering lights of sustainable, community-based groundwater supply and management: ASADAS in Costa Rica. Environmental Research Letters, 20. 051002. https://doi.org/10.1088/1748-9326/adc58dhttps://doi.org/10.1088/1748-9326/adc58dhttps://hdl.handle.net/1828/22793Groundwater, a quintessential invisible natural resource, is often misunderstood and mismanaged due to scale and management approaches as well as geographic and disciplinary biases (Giordano 2009, Gleeson et al 2020, Lall et al 2020). While groundwater management and sustainability discussions typically focus on large scales, such as regional aquifers and global analyses (Scanlon et al 2023), it is crucial to recognize that groundwater systems and sustainability occur across multiple scales (Foster et al 2013), from individual wells to large aquifers and even global virtual groundwater trade (Dalin et al 2017).enCC BY 4.0governancegroundwatercommunity-based managementArticleSchool of Earth and Ocean SciencesDepartment of Civil Engineering