Local councils remain on alert for asbestos at playgrounds.
Six playgrounds in Melbourne have been found to have traces, while more are being monitored.
The EPA has ordered councils across Victoria, asking them to assess quality controls for landscaping works and garden mulch.
The City of Greater Geelong says it is yet to find any traces at local parks or reserves.
Crews have been instructed to look for any suspected contamination when they are working in reserves.
However the council says most of the mulch it uses is produced locally by trees and branches removed by local crews.
Wyndham City says it has not had any known contamination incidents in either mulch or Softfall in parks and playgrounds.
But it says it is committed to ensuring the ground cover products used in our open spaces adhere to the required Australian Safety Standards.