本文给出了广义施工和运维成本方程。这些方程式提供了一种方便的方法，可以对水处理工艺进行初步成本估算，以便在项目规划阶段对项目备选方案进行经济比较。此类估算不代表项目的实际施工、运营和维护成本。实际项目成本是特定于现场的，不能一概而论，必须针对具体情况制定。这些方程式是以4为基础的- 美国环境保护局提供的体积报告，解释了99个单元工艺的施工和运行维护成本曲线，用于去除国家临时初级饮用水法规中包含的污染物。表1给出了42个广义建筑成本方程。其他表格提供了支持性信息，例如用作建筑成本曲线基础的BLS和ENR指数，以及建筑和运营维护成本组成部分，以及当前美元的更新值。包括12个参考文献和表格。

In this article, the generalized construction and O&M cost equations are presented. The equations provide a convenient way to develop the preliminary cost estimates of water treatment processes for economic comparisons of project alternatives during the planning phase of the project. Such estimates do not represent the actual construction and operation and maintenance costs of the project. Actual project costs are site-specific, cannot be generalized, and must be developed for individual circumstances. The equations are based on a 4-volume report from the USEPA that explains construction and O&M cost curves for 99 unit processes useful for removing contaminants included in the National Interim Primary Drinking Water Regulations. Table 1 presents 42 generalized construction cost equations. Additional tables give supporting information, such as the BLS and ENR indexes used as the basis for the construction cost curves and the construction and O&M cost components and updated values in current dollars. Includes 12 references, tables.