新罕布什尔州的曼彻斯特水厂与康涅狄格州水务公司、马萨诸塞州丹弗斯和马萨诸塞州洛厄尔水务公司联合开展了一个全面的区域性恢复项目。每个公用事业公司都提供了大约40000磅（18160千克）的碳，用于输送到曼彻斯特进行流化床再活化。项目结果表明，曼彻斯特的现场再活化比用原生碳替换废碳要便宜得多。事实证明，即使考虑到运输成本，区域再活化对公用事业公司来说也比替换或估计的现场再活化便宜。该项目展示了规模经济的影响，小型公用事业公司从参与区域系统中受益。 包括4个参考文献、表格。

A full-scale regional reactivation project was conducted by the Manchester Water Works in New Hampshire in conjunction with the Connecticut Water Company, and the Danvers, Massachusetts and Lowell, Massachusetts, water utilities. Each of the utilities provided approximately 40,000 lb (18,160 kg) of carbon to be transported to Manchester for fluidized bed reactivation. Project results indicate that on-site reactivation at Manchester was considerably cheaper than replacing spent carbon with virgin carbon. Regional reactivation proved to be cheaper for the utilities than either replacement or estimated on-site reactivation, even when the costs of transportation were taken into consideration. The effects of economy of scale were demonstrated by the project, with the small utilities benefiting from participation in a regional system. Includes 4 references, tables.