This document summarizes a technical memorandum about using cross-correlation for leak detection in plastic pipes. The memorandum was published by the Institute of Sound and Vibration Research (ISVR) at the University of Southampton in December 2002. It discusses the scientific publications produced by ISVR, including technical reports, memoranda, and contract reports. The document also provides copyright information stating that the content is the property of ISVR and cannot be used for commercial purposes without permission.