美国环境保护署（US Environmental Protection Agency）小型系统技术倡议（small systems technology initiative）的第一个项目已经完成，该项目旨在为小型系统开发更简单的处理技术。在德克萨斯州奥斯汀西北约60英里处的Quail Creek，离子交换被用来降低井水中的镭浓度。尽管该项目取得了成功，但作者警告说，由于该系统具有某些特定于现场的优势，该技术可能不会普遍适用于小型系统。 包括5个参考文献、表格、图表。

The first project under the US Environmental Protection Agency's small systems technology initiative, which was designed to generate simpler treatment technologies for small systems, has been completed. At Quail Creek, located about 60 mi northwest of Austin, Texas, ion exchange was used to reduce radium concentrations in the well water. Although the project was successful, the authors caution that this technology may not be universally applicable to small systems because of certain site-specific advantages held by this system. Includes 5 references, tables, figures.