April 2013. Victorian EPA publishes Impacts of Intensive Agriculture and Plantation Forestry on Water Quality in the Latrobe Catchment Victoria. Numerous pesticides found in Middle Creek and Narracan Creek in the Strzelecki Ranges. Plantation Forestry was the source of simazine and oxychlordane. Simazine had not been used in the catchment for 10 years, Chlordane for 30 years.