Home WA Government Publications Form 3 - Request for a certificate of contamination audit Form 3 - Request for a certificate of contamination audit Form Request a certificate of contamination audit under the Contaminated Sites Act 2003. Last updated: 16 June 2023 Please download the form below. Documents Form 3 - Request for a certificate of contamination audit (PDF, 238.5KB) Sidebar Published 23 January 2020 Provided by Department of Water and Environmental Regulation Document collections Contaminated sites forms Share Facebook share(Opens in a new tab/window) Twitter(Opens in a new tab/window) LinkedIn(Opens in a new tab/window) Copy URL