拟议的长期2强化地表水处理规则 （LT2ESWTR）建议将河岸过滤作为以下几种处理工具之一: 可供公用事业公司用于降低地表水中隐孢子虫的浓度。 迄今为止，提供如何执行的信息的指南有限 治疗演示研究，以获得大于1.0的对数积分。就像 工程过滤系统——通过河床多孔介质的流速，以及 含水层对于颗粒物去除至关重要。流量不能太大 超过介质保留粒子的能力。河岸过滤示范研究 应在机组确定的高渗透期间进行 渗透率评估。包括9个参考文献、表格、图表。

The proposed Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR) recommends that riverbank filtration be one of several treatment tools that can be used by utilities to reduce the concentration of Cryptosporidium in surface water. To date, limited guidance exists that will provide information on how to perform treatment demonstration studies in order to obtain greater than 1.0 log credit. As with engineered filtration systems the rate of flow through porous media of the streambed and aquifer is critically important with respect to particulate removal. Flow rates must not exceed the media's ability to retain particles. Riverbank filtration demonstration studies should be performed during periods of high infiltration as determined from unit infiltration rate evaluations. Includes 9 references, table, figures.