THE site of a decommissioned cattle-tick dip at Wollongbar is set to be rehabilitated and turned into a residential subdivision.
The owners of the Bletchingly St site have told Ballina Shire Council they are committed to the remediation of the land and they are prepared to work with the council to ensure the development goes ahead.
The Bewers Hill cattle tick dip operated for about 50 years.
Records from the Department of Primary Industries show that arsenic was first used there in 1946, and DDT was used there from the 1960s.
The lease expired in 1991 and the dip was decommissioned.
It is currently surrounded by a two-metre high fence.
Speaking on behalf of landowners Gellatly Property Holdings, planner Mike Svikis told councillors they did not want to overdevelop the one-hectare site.
The council has agreed to prepare a planning proposal for the site, which will incorporate a mix of R2 low-density and R3 medium-density zones.
But one of the key issues will be the remediation of the site to ensure the land is no longer contaminated.
Mr Svikis said the intention was to remediate the cattle tick dip site "to the highest standard, with the results independently audited".
His report states that cattle tick dip sites have been successfully remediated in other locations and made suitable for residential purposes.
"Options for remediation of soils include containment on site and relocation to a landfill licensed to accept such material.
"It is significant that the site has been zoned for residential purposes since 1988, and it is only the remaining residential value of the land that will allow it to be remediated without significant public cost," he said.