1986年7月至1987年12月期间，对七起塑料管渗透事故的现场进行了调查，并收集了土壤、管道材料和管道水的样本。此外，还进行了全面的文献综述，以记录其他渗透案例。这项工作表明，大多数渗透事件与管道周围区域的严重土壤污染有关。土壤污染主要发生在管道安装后，这表明管道安装前的土壤分析不会显著减少事故数量。大约一半的事故发生在低风险场所，这表明将塑料管的使用限制在这些区域不会有效防止渗透。汽油是最常见的污染物（七分之五）。在所有情况下，成功的补救措施都是用铜管替换塑料管。 包括6个参考文献、表格、图表。

Sites of seven incidents of plastic pipe permeation were visited between July 1986 and December 1987, and samples of soil, pipe material, and pipe water were collected. In addition, a comprehensive literature review was undertaken to document other cases of permeation. This work demonstrated that the majority of permeation incidents were associated with gross soil contamination in the area surrounding the pipe. Soil contamination occurred mainly after pipe installation, suggesting that soil analysis prior to pipe installation will not significantly decrease the number of incidents. The occurrence of about half the incidents in low risk sites indicates that limiting plastic pipe use to these areas will not be effective in preventing permeation. Gasoline was the most common contaminant (five out of seven cases). In all cases, the successful remedial action was to replace the plastic pipe with copper pipe. Includes 6 references, tables, figures.