Waihi resident Clinton Bowerman has kicked off an investigation by Hauraki District Council after concerns over the roading material used on a residential street.
Clinton, who suffers from asthma, questioned the council after cement dust and loose
metal was sent flying around the front of his elderly mother's home and other houses on Kensington Rd, where many elderly people reside.
"Contractors told me they were using cement but didn't know why they were using cement, which is usually for highway stabilisation.
"Normally they grind it up and put asphalt on top. I know they put the highway stabilisation on main roads because it's cheaper, I would argue they shouldn't be using it on residential streets because of the cement dust, which is a bad pollutant."
Sandbags had been placed at the roadside gutters that feed into stormwater drains on the street, showing the hardened cement that had washed off the roadworks.