Yet another Big Island water well has gone offline.

This time it is the one in Hawaiian Ocean View Estates in Kau, West Hawaii Today reports.

The well failed Thursday, and the Hawaii County Department of Water Supply doesn’t yet know why.

But if it went down due to a problem with the pump or motor, that would group it with others that have failed prematurely — including those at the Hualalai, Keahuolu, Waiaha and Honokohau sites in North Kona.

Kaiulani Matsumoto, the department’s information specialist, said the well, which came online in May 2011, was last repaired in September 2016.

The well is the only county water source serving Hawaiian Ocean View Estates and the Ranchos area in Kau, where catchment is commonly utilized.

In North Kona four wells remain down — those at Hualalai, Keahuolu, Waiaha and Keopu — resulting in a mandatory 25 percent water use restriction.

The Keopu deep well, undergoing its first repair since its construction in 2009, is expected to return to service Dec. 20.

Maui

USGS to update analysis of Haleakala eruption threat

The U.S. Geological Survey is updating its decade-old assessment of the danger of an eruption at Haleakala, but the threat is expected to remain “moderate,” the Maui News reports.

The East Maui mountain, rising more than 10,000 feet from sea level, erupts every 200 to 500 years, the Hawaiian Volcano Observatory has said.

“Future eruptions should be expected,” the observatory said in a 2010 publication. “In fact, the probability of renewed eruptive activity is sufficiently large that the need for lava flow hazard zones on East Maui cannot be ignored.”