这项研究证明，一种相对简单的镭分析程序，EPA方法900.1，即总镭α筛选程序，可以用于准确和精确的226RA分析。这项研究强调从德克萨斯州中部的山胡桃木含水层中抽取地下水进行采样和分析。一般来说，这些水域受到226RA和228RA的污染，超过了每个放射性同位素的拟定MCL 20 pCi/L和现有的5 pCi/L。

This research proves that a relatively simple radium analysis procedure, EPA Method 900.1, the Gross Radium Alpha Screening Procedure, can be used for accurate and precise 226RA analysis. The research emphasizes sampling and analyses of groundwaters drawn from the Hickory Sands Aquifer in Central Texas. Generally, these waters are contaminated with both 226RA and 228RA in excess of the proposed MCLs of 20 pCi/L, and existing 5 pCi/L, for each radiosotope.