Groundwater Q&A with the EPA
During 2021 as Santos applied to vary their Environmental Protection Licence 20350 to downsize monitoring of groundwater in the Pilliga Forest we contacted a hydrogeologist at the EPA for answers to some of our questions. The EPA could not explain why the pH of Monitoring Point 13 rapidly dropped by 5 points (see Question 1). To date we have been given no explanation for this worrying downwards trend from alkaline to acid within a formation that Santos characterised as alkaline. The EPA state: “The neutralizing trend of pH observed at Monitoring Point 13…continue reading →