对堪萨斯州的50口井进行采样，以确定与主要含水层系统相关的总有机碳（TOC）和三卤甲烷形成潜力（THMFP）的浓度。TOC和THMFP的平均浓度分别为1.03+0.76 mg/L和46.7+39.5 ug/L；THMFP与TOC呈极强相关性（r=0.953）。只有8%的THMFP浓度超过100 ug/L，但56%的浓度超过25 ug/L，90%的浓度超过10 ug/L，这表明许多使用地下水的堪萨斯水务公司可能难以达到显著更低的THM标准。 控制堪萨斯州地下水供应中三卤甲烷的努力应集中在冲积含水层，尤其是那些TOC、铵、铁和锰含量高的含水层。包括11个参考文献、表格、图表。

Fifty wells in Kansas were sampled to determine the concentrations of total organic carbon (TOC) and trihalomethane formation potential (THMFP) associated with major aquifer systems. The mean TOC and THMFP concentrations were 1.03+0.76 mg/L and 46.7+39.5 ug/L, respectively; THMFP was very strongly correlated with TOC (r=0.953). Only 8 percent of the THMFP concentrations exceeded 100 ug/L, but 56 percent exceeded 25 ug/L and 90 percent exceeded 10 ug/L, suggesting that many Kansas water utilities using groundwater might have difficulty meeting a substantially lower THM standard. Efforts to control THMs in Kansas groundwater supplies should focus on alluvial aquifers, particularly those with high concentrations of TOC, ammonium, iron and manganese. Includes 11 references, tables, figures.