Northland's small coastal catchments are set to become the next "victims" of the region's "unrelenting drought," according to the Northland Regional Council, which on Tuesday was preparing to issue water shortage directions in 23 communities, restricting the use of bore water to 'reasonable' household and stock welfare needs.
Water and waste manager Ali McHugh said more than two dozen aquifers were nearing, or quickly heading toward, their lowest levels on record.
"For those drawing water from bores in these areas, this means if that they have not already, they may soon begin experiencing issues such as water becoming noticeably salty and other bore behaviour they have not encountered before," she said.
She expected small, shallow coastal groundwater systems to fall to significantly lower levels than would normally be seen over the next two to three months, raising the real risk of saltwater intrusion.
"There is a real risk that there will be water that's unsuitable for drinking, or even no water at all, as shallow bores become unable to pump water and deeper bores are impacted by saltwater moving inland," she said.