Resident and tourist preferences for stormwater management strategies in Oahu, Hawaii

• Use a choice experiment for stormwater management strategies in Oahu, Hawaii.
• Explore differences in the value of strategies for residents versus tourists.
• Benefit-cost analysis for strategies based on Willingness to Pay and projected costs.
• The most preferred strategies are more rapid testing and educational efforts.

Hawaii's economy relies on its global reputation of its coastal marine environments. This paper studies residents' and tourists' preferences for stormwater quality management strategies related to recreational beaches in Oahu, Hawaii. Using a Choice Experiment approach, we consider Willingness to pay for augmented efforts for Non-Structural and Structural Best Management Practices, Warning and Advisory systems, Testing methods, and Educational efforts. Our results show that Rapid testing and educational efforts are most favored by both residents and tourists. There are few differences in Willingness to Pay for the stormwater strategies among residents and tourists, such that meeting both groups' preferences is possible. Further, based on experts' information on the strategies' proposed costs, all strategies should be pursued by Hawaii's policymakers.