Dr. Peta Derham Substantive roles Chief of Staff to the SecretarySecretary's Officepeta.derham1@dcceew.gov.auhttps://www.dcceew.gov.au/0477 342 114 General Manager – Water Resource Plans and Basin PolicyPartnerships Division(02) 6279 0696peta.derham@mdba.gov.au Last updated: 2 July 2025