Partner Ridge to Reef Projects in West Maui
The R2R is a compliment to, and carried out, in coordination with many other stewardship, conservation, research, education and planning activities underway in West Maui. A few of the ongoing efforts and listed below. Please contact the watershed coordinator if you would like to add your project description.
The West Maui Mountains Watershed Partnership plays a critical role in preserving watershed health in West Maui by managing 50,000 acres of forest and watershed vegetation on the summit and slopes of the West Maui Mountains. Management priority include: 1) Feral animal control, 2), Weed control, 3) Human activities management, 4) Public education & awareness, 5) Water and watershed monitoring, and 6) Management coordination improvements. Visit their site for inspiring photographs of rarely seen places and information on how to care for the precious resources in the highest elevations in West Maui.
The Kahekili Herbivore Fisheries Management Area In the summer of 2009 the state of Hawaii declared Kahekili reef an Herbivore Fisheries Management Area (KHFMA) where all take of herbivorous fish and urchins is now prohibited. KHFMA is located off north Ka'anapali (old airport beach). The northern boundary is a straight line extending 1292 yards west from Honokowai Beach Park, the southern boundary is a straight line extending 335 yards west from Hanaka'o'o Beach, and the seaward boundary is a straight line connecting the seaward endpoints of the northern and southern boundaries, as shown.
To injure, kill, possess, or remove any rudderfish (nenue), parrotfish (uhu), or surgeonfish. To injure, kill, possess, or remove any sea urchin.
To feed or deliberately introduce any attractant, directly to or in the vicinity of any marine life, except while fishing for permitted marine life.
For more information: Division of Aquatic Resources or KHFMA Facebook
Key Contact: Russell Sparks, Division of Aquatic Resources
Preliminary results from investigation of injection wells at Lahaina wastewater facility
Tracer dye detected in offshore seeps
The U.S. Environmental Protection Agency released preliminary results from an ongoing investigation by the University of Hawaii on behalf of federal and state agencies to evaluate the fate of effluent from the Lahaina Wastewater Reclamation Facility near the Ka`anapali coast of Maui. Funded by the U. S. EPA, U.S. Army Corps of Engineers, and the Hawaii Department of Health, the University of Hawaii has been studying the effluent flow from Lahaina’s injection wells to the near-shore ocean water since July 2011.
According to the interim report one of two tracer dyes introduced in the wells was detected at the coastal seeps, located roughly one-half mile southwest of the Lahaina facility and between 3 and 25 meters from shore. The dye detection establishes a hydrologic connection between the Lahaina facility’s treated wastewater injection wells and the monitored submarine seeps. It took just under three months for the tracer dye to first appear at the seeps, however, the results suggest an average travel time from the injection wells to the submarine seeps in excess of seven months. The studies are inconclusive for detection of the second tracer dye, although data collection at the seeps continues. Additional key results include the temperature, salinity, pH, nutrient concentrations, and discharge rate of the monitored submarine discharges.
While the report confirms a hydrologic connection between the injection wells and the near-shore seeps, monthly sampling of the seeps by Hawaii Department of Health has detected no bacterial indicators. DOH monitoring near the seeps indicates bacterial levels that are low or non-existent, and well within the range considered safe for swimming. In 2011, EPA required the County of Maui to increase their level of wastewater disinfection prior to injection. The County is on schedule to meet EPA requirements to achieve full ultraviolet disinfection of all wastewater at the Lahaina facility by December 2013.
The University will also continue their data analysis and modeling to clarify the processes that affect the transport of the treated wastewater effluent and its eventual discharge into the marine environment. A final report on the results of the tracer dye study is expected in June 2013.
To see the Interim Report please visit: www.epa.gov/region9/water/groundwater/uic-permits.html#lahaina