“…As noted in Table 2, the range of strontium concentration for raw surface waters was 0.006-1.5 ppm. According to· references (13)(14)(15) consulted by the authors, the drainage basin soils may be divided into three categories: [1] noncalcareous, [2] noncalcareous plus cal- careous, and [3] calcareous. The strontium concentration ranges of the waters from these three groups of soils are 0.006-0.20, 0.10-0.26, and 0.27-1.5 ppm, respectively.…”