从九个公共供水系统收集水样，处理从萨克拉门托河系统获得的水。所有原水中都含有三卤甲烷，其中一些浓度高达25 ug/L。正如预期的那样，成品水中的THM水平更高。无论海水入侵的程度如何，萨克拉门托河三角洲补给区形成的THM都要多得多。海水入侵的主要影响是增加三卤甲烷的溴化。整个河流系统中THM的形成与COS或TOC水平均不相关。经处理的康特拉-科斯塔运河水中THM的形成与三角洲流出指数有很好的相关性。包括9个参考文献、图表。

Water samples were collected from nine public water systems treating water obtained from the Sacramento River system. Trihalomethanes were present in all raw waters, with concentrations in some ranging as high as 25 ug/L. As expected, THM levels were higher in finished waters. Considerably more THMs were formed in Sacramento River delta supplies, irrespective of the degree of seawater intrusion. The primary effect of seawater intrusion was to increase bromination of THMs. THM formation in the river system as a whole did not correlate with either COS or TOC levels. THM formation in treated Contra Costa Canal water correlated well with the Delta Outflow Index. Includes 9 references, figures.