本文描述了通过州水项目输送到南加州的温石棉纤维的输入、运输和移除。根据质量平衡模型估算了加利福尼亚州地表水中温石棉纤维的浓度，该模型考虑了内华达山脉和沿海山脉蛇纹石的自然风化，以及通过水库中的凝聚去除纤维。正如预测的那样，在滞留时间为0.5至3年的水库中，纤维去除率为90%至99.8%。水处理厂对亚微米纤维的去除率也在90%到99.8%之间，这取决于过滤前的凝固程度。总结了计算方法和实际结果。包括29个参考文献、表格和图表。

This article describes the input, transport, and removal of chrysotile asbestos fibers delivered to Southern California through the State Water Project. Concentrations of chrysotile fibers in surface waters in California are estimated from a mass-balance model that takes into consideration natural weathering of serpentine rock in the Sierra Nevada and coastal mountains and removal of fibers by coagulation in reservoirs. As predicted, fiber removals of from 90 to 99.8 percent were observed in reservoirs with detention times of from 0.5 to 3 years. Removal of submicron-sized fibers in water treatment plants also ranged from 90 to 99.8 percent, depending on the degree of coagulation prior to filtration. Calculation methods and actual results are summarized. Includes 29 references, tables, figures.