Sydney Desalination Pipeline Cathodic Protection System

Sydney Desalination Pipeline Cathodic Protection System Performance Review After 3 Years

Jim Galanos, Engineering Manager, Corrosion Control Engineering

Introduction
As part of a NSW State Government initiative to provide Sydney with a long term drought proof water supply solution, a desalination plant was built in Kurnell. The delivery point for the desalinated water was Erskineville, a Sydney suburb approximately 4 km from Sydney CBD. This required the construction of a 16.8km pipeline (see Figure 1).

This study assesses the performance of the cathodic protection system and other corrosion mitigation and monitoring systems over the 3 year period following commissioning.