A contracting company has been fined for discharging sediment into a Kerikeri stream.
Concerned residents contacted the Northern Advocate last month to report discoloured water flowing from a stormwater drain into Wairoa Stream next to the Cobham Rd bridge.
Regional council regulatory services general manager Colin Dall said a staff member inspected the stream a day after a complaint was received on October 19.
The inspector observed ponded red-brown water and established the source as a nearby construction site.
The cause was likely a combination of a substandard decanting earth bund, or barrier, and vehicles tracking material from the site onto the road.
The site manager promised remedial action, Dall said.