R-1 Recycled Water Expansion
“We need to make use of R-1 water in order to keep the historically drought ridden community with water to keep areas green and mitigating the risk of fires spreading again.”
Community Quote from Long-Term Planning Recovery Survey
Project Description and Purpose
This project includes a suite of planning, design and construction activities to improve and expand the recycled water distribution infrastructure in West Maui. It will improve, repair and rehabilitate old pipelines, ditches and reservoirs, as well as construct new distribution pipelines, laterals, meters, and other appurtenances to service non-potable water needs from Honokowai to Olowalu. It will expand customer base and usage of recycled water, may potentially provide irrigation to support replanting of native vegetation for erosion control in the impact area and may provide irrigation to a potential firebreak mauka of Lahaina. It includes the following tasks:
- Lahaina Wastewater Treatment Facility (improve, repair and rehabilitate old pipelines, ditches and reservoirs already in place)
- Honokowai R-1 Water Distribution System (sign, permitting, management and construction of new R-1 distribution pipelines, laterals, meters and other appurtenances within Honoapi’ilani Hwy., Lower Honoapi’ilani Road and Kaʻanapali Shores Place)
- Lahaina Recycled Water Force Main (Assessment, design, permitting for the rehabilitation/replacement of an existing 6,700-foot force main, construction of a second force main, pump station, access road and supporting utilities/improvements)
- Lahaina R-1 Recycled Waterline for Firebreak (Development of 5 miles of
16- inch recycled waterline conveying 200,000 gallons of recycled R-1 water daily from an R-1 reservoir, supplied by DEM’s Lahaina Wastewater Treatment Plant)
Injection Well
Interdependencies, Roadblocks and Next Steps
Potential challenges could include permitting and access, as some components are planned to impact privately-owned land. This may result in additional projects to complete, beyond those captured in this project.
Project Details
Cost Estimate
>$105,000,000
Potential Funding Sources
- Bureau of Reclamation Title XVI
- U.S. Environmental Protection Agency Community Change Grant
- U.S. Environmental Protection Agency Water Quality Improvement Programs
- Improvement District Program
- Water Infrastructure Finance and Innovation Act (WIFIA)
Existing Funding Sources
- County Department of Water Supply
- Capital Revolving Fund
Project Lead
County Department of Environmental Management
Project Partners
County Department of Planning
County Department of Environmental Management
County Department of Water Supply
County Department of Agriculture
Private Landowners
State Department of Land and Natural Resources - Commission on Water Resource Management
Maui Economic Recovery Commission
State Department of Health, Surface Water Protection Branch