通过泵送水或重力相互作用将水库互连，可以节省成本，提高系统安全产量。俄亥俄州哥伦布市修建了一条3.8英里长的管道，从美国陆军工程兵团拥有的Alum Creek水库，到该市拥有的供水水源胡佛水库。通过对从明矾溪水库向胡佛水库输水的仔细计时，胡佛水库的安全产量增加了34.3 mgd，平均抽水量仅为22.5 mgd。由于转移水和胡佛水库水的处理成本低于替代水源，因此水系统总运营成本每年可节省695135美元。 包括5个参考文献、表格、图表。

The interconnection of reservoirs through pumped-water or gravity interties can lead to cost savings and increased system safe yield. The city of Columbus, Ohio constructed a 3.8-mi pipeline from Alum Creek Reservoir, owned by the US Army Corps of Engineers, to Hoover Reservoir, a city-owned water supply source. Through careful timing of the transfer of water from Alum Creek Reservoir to Hoover Reservoir, an increase of 34.3 mgd in the safe yield of Hoover Reservoir is achieved with an average pumpage of only 22.5 mgd. Because transferred water and Hoover Reservoir water cost less to treat than alternative sources, a net savings of $695,135 per year is realized in total water system operating costs. Includes 5 references, tables, figures.