The path to a sustainable management of the urban water cycle requires the assessment of both operational and quality-adjusted efficiency in a unified manner. This can be done by the use of non-radial Data Envelopment Analysis models. This study used Range Adjusted Measure models to evaluate the operational, quality-adjusted, and operational & quality-adjusted efficiency (O&QAE) scores of the Chilean water industry including water leakage and unplanned interruptions as undesirable outputs. It was found that on average water utilities presented large O&QAE scores over time. The mean O&QAE score was 0.964 which means that water utilities could further reduce costs and undesirable outputs by 3.6% on average, while trying to expand the scale of operation. This finding suggests that excellent quality-adjusted efficiency at an efficient expenditure could be feasible. It was also evidenced that customer density, mixed water resources, and ownership influenced the O&QAE of Chilean water companies.

城市水循环可持续管理的道路需要以统一的方式评估运营效率和质量调整效率。这可以通过使用非径向数据包络分析模型来完成。本研究使用 Range Adjusted Measure 模型来评估智利水行业的运营、质量调整以及运营和质量调整效率 (O&QAE) 分数，包括漏水和计划外中断作为不良输出。结果发现，随着时间的推移，自来水公司的平均 O&QAE 得分很高。平均 O&QAE 得分为 0.964，这意味着水务公司可以在努力扩大运营规模的同时将成本和不良产出平均进一步降低 3.6%。这一发现表明，以有效的支出实现出色的质量调整效率是可行的。还有证据表明，客户密度、混合水资源和所有权影响了智利水务公司的 O&QAE。