Letters are being sent to well-owners and councils around the region in the wake of the Havelock North water contamination, as the Hawke's Bay Regional Council asks people to check the conditions of well-heads, and surrounding areas.
Council resource use manager Wayne Wright said if anyone was aware of an unusual or uncapped well, the council would like it to be raised with it to see if further action is needed.
In the area of the Brookvale bores, the regional council was taking "the proactive step" of capping historic and abandoned wells when it found them. This was at its own cost, at roughly $500 per well.
Chairman Fenton Wilson said this measure was a timely reminder as the subject of water safety was at the forefront of people's minds.
Last week the council announced it would be conducting an investigation into the contamination of the water supply.