本演示的目的是提供:悉尼水务公司和澳大利亚水务联合行动小组开展的原型接种实验和隐孢子虫去除结果的详细信息，该小组成立的目的是协助政府调查1998年悉尼供水系统污染的可能原因；评估隐孢子虫潜在指标参数的有用性，如特定大小范围内的颗粒数、藻类和需氧孢子。原型测试的目的是通过在受控环境中进行测试，更好地了解Prospect滤水厂的性能:确定在典型低原水浊度下达到的处理水平，处理水平由浊度、颗粒物、隐孢子虫、孢子和藻类的去除来确定； 此外，确定使用浊度和颜色升高的原水达到的处理水平，这是被认为含有较高隐孢子虫和贾第虫浓度的原水的典型情况。测试包括在原水和过滤水质量的三种不同条件下进行的初始和最终隐孢子虫接种。原型工厂运营人员在联合行动小组的指导下进行了最初的两次隐孢子虫接种。泰晤士河水务公司对这些初始播种进行了隐孢子虫分析。克兰西环境顾问公司（CEC）与原型工厂运营人员共同进行了最后三次隐孢子虫接种。CEC对最终播种进行了所有隐孢子虫分析。

The objectives of this presentation were to provide: details of the prototype seeding experiments and Cryptosporidium removal results undertaken by the Sydney Water Corporation and Australian Water Services Joint Action Group, formed to assist the government inquiry investigating the possible causes of the contamination of the Sydney water supply in 1998; and, an assessment of the usefulness of potential indicator parameters for Cryptosporidium such as particle counts in specific size ranges, algae and aerobic spores. The objective of the prototype testing was to develop a better understanding of the performance of the Prospect Water Filtration Plant by testing in a controlled environment to: determine the level of treatment achieved at typical low raw water turbidities, with the level of treatment defined by the removal of turbidity, particles, Cryptosporidium, spores and algae; and, determine the level of treatment achieved using raw water with elevated turbidity and color, which is typical of raw water thought to contain elevated Cryptosporidium and Giardia concentrations. The testing included initial and final Cryptosporidium seeding runs performed under three different conditions of raw and filtered water quality. The prototype plant operations staff performed the initial two Cryptosporidium seeding runs with direction from the Joint Action Group. Cryptosporidium analyses for these initial seeding runs were performed by Thames Water Utilities. Clancy Environmental Consultants (CEC), in conjunciton with the prototype plant operations staff, performed the final three Cryptosporidium seeding runs. CEC performed all Cryptosporidium analyses for the final seeding runs.