"As resident development moved closer to the farm's boundary there was a noticeable increase in the number of complaints received about the odour from the company's operation.
"This is a factor which, in fairness, you must have regard to when considering the applications before you."
She said that since the increase in the number of complaints, the company has checked all aspects of its operations for "fugitive emissions", and investigated and implemented ways to mitigate odour.
This had included a $100,000 effluent storage and treatment pond and aerator, mixing chicken litter and gypsum off-site which annually costs $52,000 and closing down its retail composting operation at a cost of more than $60,000.
The hearing is in regards to two resource consent applications, one to the regional council to discharge to air, and one to Hastings District Council for a new land use consent.
Both Hastings District Council and Hawke's Bay Regional Council will have the opportunity to present to the commissioners on Thursday and Friday.
It is not yet clear when a decision will be reached on the resource consent.