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Instream uses for West Maui streams guaranteed by historic decision

March 23, 2018
Lahaina News

WAILUKU - Instream values for four West Maui streams are now protected following a decision on March 21 by the Hawaii Commission on Water Resource Management (CWRM).

The decision was made at the conclusion of a half-day-long hearing in which more than three dozen people testified.

The streams are Ukumehame, Olowalu, Launiupoko and Kaua'ula. In addition to recognizing traditional and customary rights such as mauka-to-makai flows, the gathering of native species and taro cultivation, the commission decision will serve to protect fish habitat, ecosystem services, aesthetic and recreational values, and water quality, according to the state.

The decision is the first staff-initiated interim instream flow standard since 1988 and was the result of two years of stream measurements, data analysis, mapping and public engagement by the CWRM staff.

"Farmers cultivating small taro patches downstream literally had to beg for water that was being diverted upstream for other agricultural and landscaping irrigation," explained Commission Chair Suzanne Case.

"With sugar cane plantations and mills no longer a consideration, this is certainly the time to re-balance - to ensure all rightful users of West Maui's water supply share this precious resource."

The interim instream flow standards recommended by CWRM staff and adopted by the Commission are:

Ukumehame Stream: At least 2.9 million gallons per day below the plantation diversion, ensuring at least 600,000 gallons per day for taro farmers, At least 45,000 per day is available for agriculture and 4,000 gallons per day for landscaping at least 50 percent of the time with surface water.

Olowalu Stream: At least 2.33 million gallons per day below the lower plantation diversion. This maintains 196,000 gallons per day for agriculture and 141,000 gallons per day for landscaping at least 50 percent of the time.

Kaua'ula Stream: At least 3.36 million gallons per day below the plantation diversion and 4.1 million gallons per day below kuleana users at 270 feet in elevation.

Launiupoko Stream: Flows will stay as-is, because it naturally reaches the ocean less than 20 percent of the time. At the request of people who testified during the hearing, the commission agreed to conduct controlled releases to determine environmental impacts.

DLNR Deputy Director for Water Jeff Pearson commented, "The maintenance of instream flows is critical to protecting everything associated with a stream, from traditional and customary rights to habitat protection to a stream's various economic benefits. As our staff noted in their report'While the traditional Hawaiian concept is based on the premise of mauka-to-makai flows, it is difficult to fully represent in words the depth of the cultural aspects of streamflow, including traditions handed down through the generations regarding gathering, ceremonial and religious rites, and the ties to water that are pronounced in Hawaiian legend and lore.' "

"Given the long, expensive and contentious battles over water elsewhere on Maui and around the state, this historic decision and the hard work CWRM staff and the community did to bring it to fruition can serve as a model for future interim instream flow standard decisions," Case concluded.

 
 
 

 

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