加利福尼亚州奥克兰市东湾市政公用事业区部分配送系统中大肠菌群的持续高计数可追溯至一个钢制储罐内部的支持生长的有机涂层。此后，公用事业公司开发了一种程序，用于在将材料应用于饮用水蓄水池内部之前，测试涂层的细菌生长支持潜力。对各种涂料进行的试验表明，选择一种不支持生长、不给水带来味道和气味、且不含过量有毒溶剂的涂料对公共设施设计工程师来说是一个难题。包括2个参考文献，表1。

Persistently high coliform counts in a portion of the distribution system of the East Bay Municipal Utility District in Oakland, California were traced to a growth-supportive organic coating on the interior of a steel tank. A procedure has since been developed by the utility to test coatings for bacterial growth support potential before the material is applied to the interior of potable water reservoirs. Tests performed on a variety of coatings reveal that selecting a coating that does not support growth, does not impart taste and odor to the water, and does not contain excessive amounts of toxic solvents poses a difficulty for utility design engineers. Includes 2 references, table.