Maui County Enacts Stricter Water Conservation Rules
Effective March 1, 2026, Maui County will implement revised Water Use Conservation rules, signaling a more stringent approach to water management across the island. These amendments aim to ensure the sustainable use of Maui's limited freshwater resources, particularly in the face of increasing demand and potential drought conditions. The County of Maui Department of Water Supply is hosting a public open house on February 25, 2026, to inform residents and businesses about these changes, but the legal framework for compliance will be in place precisely two days later. Businesses that rely heavily on water are advised to proactively understand these new regulations to avoid potential penalties and operational setbacks.
Who's Affected
Small Business Operators Restaurants, car washes, laundromats, and service-based businesses that utilize significant amounts of water must immediately assess their current consumption against the new conservation mandates. Non-compliance can lead to fines, which, for a small operation, could significantly impact profitability. Understanding the specific restrictions on outdoor watering, equipment usage, and greywater systems will be crucial. Planning for potential water-saving retrofits or process modifications should begin now to ensure smooth operation post-March 1.
Real Estate Owners Property owners, including landlords and developers, need to be aware of how these rules might impact their properties. For commercial properties, tenants with high water usage may need to invest in water-efficient equipment or alter their operations. Developers planning new construction or significant renovations should factor in the new water conservation requirements into their design and permitting processes. Existing multi-unit residential buildings may need to consider implementing sub-metering or water-saving fixtures to ensure compliance across all units.
Tourism Operators Hotels, resorts, and vacation rental managers are particularly vulnerable due to their high water demands for guest amenities, landscaping, and laundry. The new rules will likely necessitate enhanced water conservation programs, such as low-flow fixtures, linen reuse programs, and drought-tolerant landscaping. Failure to adapt could lead to reputational damage and financial penalties, impacting the guest experience and operational costs. Proactive implementation of water-saving technologies and staff training is essential.
Agriculture & Food Producers For Maui's agricultural sector, water is a critical input. The updated conservation rules may impose stricter limits on irrigation, particularly for non-essential crops or during specific times. Farmers, ranchers, and aquaculture operators should consult the specific agricultural provisions within the new rules. This may require optimizing irrigation schedules, exploring alternative water sources (if viable and permitted), or adjusting crop selections to those with lower water requirements. Understanding any tiered restrictions based on water availability is paramount for crop planning.
Healthcare Providers While essential services are typically prioritized, healthcare facilities (clinics, hospitals, private practices) must still adhere to water conservation guidelines. This includes efficient use of water in sanitation, sterilization, and cooling systems. While direct service disruption due to water restrictions is unlikely for critical functions, adherence to general conservation measures is expected. Any non-compliance could still result in penalties, diverting resources that could be better used for patient care.
Second-Order Effects
Stricter water conservation measures on Maui, especially if coupled with prolonged dry spells, can indirectly affect operational costs and labor availability. For instance, businesses in the agriculture sector may see reduced yields or shifts to less water-intensive, potentially lower-profit crops. This could lead to increased prices for certain local produce, affecting food costs for consumers and restaurants. Furthermore, if water restrictions significantly impact landscaping or amenity usage at hotels, it could slightly diminish the attractiveness of certain tourist experiences, potentially creating a minor drag on tourism revenue and, consequently, related employment. The county's emphasis on water conservation also signals a broader move towards resource management, which could precede or accompany other regulations impacting development and business operations.
What to Do
The open house on February 25 offers a direct opportunity to ask questions, but the rules take effect regardless. Businesses must prioritize understanding and implementing the necessary changes before March 1, 2026.
Small Business Operators: Obtain a copy of the official "Maui County Water Use Conservation Rules" amendments from the Maui Department of Water Supply website. Detail your business's water usage per process. Identify at least two high-consumption areas and research water-efficient alternatives or operational changes. Implement one confirmed change before the March 1 deadline.
Real Estate Owners: Review the Maui County Water Use Conservation Rules. For commercial properties, notify current tenants with high water usage and begin discussions for lease renewals that incorporate water efficiency requirements. For new developments, integrate water-saving fixtures and landscaping designs into existing plans and ensure compliance with permitting requirements.
Tourism Operators: Download the official rules from the Maui Department of Water Supply. Conduct an internal water audit focusing on guest rooms, laundry, and common areas. Implement low-flow fixture upgrades or staff training on water-saving protocols by February 28, 2026. Display water conservation signage prominently for guests.
Agriculture & Food Producers: Secure the official "Maui County Water Use Conservation Rules." Consult with agricultural extension services or local farm bureaus regarding specific provisions for your crop types. Document your current irrigation methods and explore water-saving technologies such as drip irrigation or soil moisture sensors. Prepare a contingency plan for reduced water allocations if necessary.
Healthcare Providers: Access the "Maui County Water Use Conservation Rules" from the Maui Department of Water Supply. Review internal procedures for water usage in sanitation, HVAC systems, and non-critical patient services. Ensure all staff are aware of and adhering to the general conservation guidelines by March 1, 2026.



