It's still unknown why there are slightly elevated - but safe - levels of arsenic in these areas.
Auckland's water provider says the supply from the Waikato River will be tested every day, to keep an eye on arsenic levels.
National Public Health Service regional clinical director Dr William Rainger says: “People who are drinking water sourced ...
Elevated levels of arsenic have been found in the Waikato River, affecting water supplies in Auckland and Waikato. The Water ...