1978年，纽约州卫生部对公共供水中三卤甲烷化合物和其他合成有机化学品的存在进行了调查。选择四个系统进行季节变化调查。研究结果表明，处理厂的氯仿浓度通常最高。根据源类型、可用处理和物理参数对数据进行解释。讨论了选址、样本收集、分析、地下水来源、地表水来源以及EPA初级饮用水法规的潜在影响。包括5个参考文献、表格、图表。

An investigation into the occurrence of trihalomethane compounds and other synthetic organic chemicals in public water supplies was conducted in 1978 by the New York State Department of Health. Four systems were chosen to be investigated for seasonal variation. The findings indicated that the concentrations of chloroform were often highest at the treatment plant. Interpretation of the data according to source type, available treatment, and physical parameters is presented. Site selection, sample collection, analysis, groundwater sources, surface water sources, and the potential impact of the EPA primary drinking water regulations are discussed. Includes 5 references, tables, figures.