介绍了五种主要类型的水价表，并对全国范围的水价表样本进行了分析，以衡量这些水价政策对边际水价的影响。该值被发现明显低于平均水价，而平均水价通常被错误地用于评估家用节水设备的投资。讨论的计划类型包括每周期固定费用、每单位统一费率、每单位可变费率、峰值负荷定价和混合费率。包括价格弹性、分段和统一费率，以及根据当地而非全国费率表进行储蓄估算的必要性。包括14个参考文献和表格。

Descriptions of five major types of water rate schedules are presented and a nation-wide sample of rate schedules is analyzed to measure the effect of these water pricing policies on the marginal price of water. This value is found to be significantly lower than the average price of water, which is often incorrectly used to evaluate home water conservation device investments. The types of schedules discussed include fixed charge per period, uniform rate per unit, varying rate per unit, peak load pricing, and mixed. Price elasticity, block and flat rates, and the need to base savings estimates on local rather than national rate schedules are covered. Includes 14 references, tables.