莲花1-2-3工作表用于计算水样的方解石饱和指数（SI）和碳酸钙沉淀电位。一个简化的工作表说明了该方法的原理，并简要描述了一个更复杂的工作表，该工作表适用于大多数饮用水水源的建模。这两份工作表都包括离子配对以及温度和离子强度平衡常数的调整。讨论了使用电子表格而不是大型平衡代码进行水质建模的好处。 包括46个参考文献和表格。

Lotus 1-2-3 worksheets for calculating the calcite saturation index (SI) and calcium carbonate precipitation potential of a water sample are described. A simplified worksheet illustrates the principles of the method, and a more complex worksheet suitable for modeling most potable water sources is briefly described. Both worksheets include ion pairing and adjustments of equilibrium constants for temperature and ionic strength. The benefits of using spreadsheets as opposed to large equilibrium codes for water quality modeling are discussed. Includes 46 references, tables.