The council's investigations manager, Patrick Lynch said on this occasion a farm owner has engaged a contractor to carry out maintenance work on his property.
"There are very clear restrictions around what work can be done in and around fresh water streams in the Waikato region.
"Both parties should have known better than to carry out these works under the pretence of cleaning farm drains. These are not drains, they are streams. Landowners and earthworks contractors need to appreciate the difference or risk facing similar penalties.
"We urge anyone who has doubts about what can and can't be done around streams to contact us before they start work. We also offer training opportunities for earthworks contractors."
A series of one day industry workshops are due to be held in July and August:
• Practical erosion and sediment control – focused on constructing erosion and sediment controls.
• Planning erosion and sediment control – an advanced workshop with a practical focus.
To find out more about the workshops, as well as to register online, visit www.waikatoregion.govt.nz/earthworks-erosion-and-sediment-control