Water Resources
Enduring Impacts of the November 2021 Red Hill Fuel Spill: Health, Social, Economic, and Trust Implications
This report presents findings from a follow-up survey conducted in July 2023—about 20 months after the Red Hill water contamination—with 174 people who had participated in earlier CDC/ATSDR studies. The study examines how the disaster affected participants’ health, daily life, finances, and trust in government agencies. Results indicate ongoing challenges, including physical and mental health […]
Read MoreSupporting thriving water futures through education and career pathways: perspectives from the Hawai‘i water sector
In this report, we share insights from representatives from the freshwater sector on how the University of Hawai‘i can best support a thriving water future for Hawai‘i through strengthening educational and career pathways. This research is a multi-department collaboration including the University of Hawai‘i Economic Research Organization, the Institute for Sustainability and Resilience, University of […]
Read MoreWatershed Protection Provides Strong Return on Investment on Kaua‘i
By Conrad Newfield, Nathan DeMaagd, Christopher Wada, Kimberly Burnett, and Leah Bremer Read the full report. Kaua‘i’s native forests play a vital role in sustaining the island’s freshwater resources. These biodiverse ecosystems capture rainfall and fog, allowing water to seep into underground aquifers, which serve as the primary source of drinking water. However, the expansion […]
Read MoreReturn on investment for watershed protection on Kaua‘i
Native forests provide many societal benefits, including protecting freshwater resources that provide drinking water and sustain culturally, economically, and ecologically valuable springs, streams, and groundwater dependent ecosystems. The objectives of this report are to: (1) model future management scenarios for Kaua‘i’s native forests that are co-developed with The Nature Conservancy (TNC) to quantify the impact […]
Read MoreConsiderations for understanding water availability in West Maui
This piece intends to highlight some of the inherent tradeoffs that make managing water in West Maui especially challenging. In particular, subtracting current/authorized use from “sustainable yield” as defined by the State Water Code and interpreted by CWRM may not be a reliable way to determine remaining water resources available for use. We hope summarizing […]
Read MoreSocial, economic, and health impacts of the Red Hill fuel spill: preliminary survey results
By Leah Bremer, Tara Sutton, Ruben Juarez, Nicole Siegal, Nathan DeMaagd *University of Hawaiʻi Economic Research Organization (UHERO), Water Resources Research Center (WRRC), Department of Geography and Environment, University of Hawaiʻi at Mānoa. BackgroundOn November 20, 2021, jet fuel from the Red Hill Bulk Fuel Storage Facility directly contaminated the Red Hill Shaft well, impacting […]
Read MoreEmbedding local values in Payments for Ecosystem Services for transformative change
Abstract: The potential for Payments for Ecosystem Services (PES) programs to integrate nature’s diverse values into decision-making, and thereby support broader transformative change, is of increasing research interest. We analyze published reviews and case studies of PES from the IPBES Values Assessment to evaluate 1) how diverse values were (or were not) articulated through PES […]
Read MoreSolving Optimal Groundwater Problems with Excel
Abstract: Welfare maximizing management of coastal groundwater requires a sequence of pumping targets, typically terminating with a constant withdrawal rate in the long run. In contrast, managing according to sustainable yield at best identifies the constant rate of pumping in the long run. We illustrate an accessible solution method, using Excel Solver to find the […]
Read MoreLinking climate, forests, and limu: Examining the influence of environmental change on groundwater dependent ecosystems in Kona
By Leah Bremer, Brytne Okuhata, Jade Delevaux, Angela Richards Doná, Celia Smith, Veronica Gibson, Henrietta Dulai, Aly El Kadi, Kosta Stamoulis, Kimberly Burnett, Christopher Wada Summary: Climate change and increased groundwater pumping are likely to increase the habitat suitability of an invasive seaweed and decrease the abundance of a native and culturally important limu species […]
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