9 March 2017
Effluent ponds need careful management following Waikato’s heavy rains
Following the heavy rain that’s struck the region in recent days and with more rain forecast, Waikato Regional Council
is reminding farmers it can help with advice on managing effluent pond levels.
Effluent should not be irrigated on to saturated pastures as this risks contaminants getting into waterways and
affecting their health.
However, heavy rain helping to fill up ponds means farmers can be under more pressure to empty them to stop effluent
spilling out in large and difficult to manage amounts, which can end up in waterways.
“We acknowledge some ponds will be close to overtopping due to the rain but farmers still need to do everything they can
ensure they don’t overtop and that effluent is not applied to saturated pasture,” said the council’s farming services
team leader Stuart Stone.
“They should actively manage their ponds and take all reasonable steps to prevent effluent from entering waterways.”
Options for lowering pond levels other than irrigating to pasture include looking to transport material away by tanker
for disposal or using some else’s surplus storage. It’s also worth ensuring stormwater system flows are diverted away
from ponds.
“Also normal pasture irrigation can occur if conditions are suitable,” said Mr Stone.
If farmers feel their pond is at risk of overtopping, or they want other effluent-related advice, they can call the
farming services team on 0800 800 401.
ends