Private investors would redraw the map of water distribution in the West and make a profit.

私人投资者将重新绘制西部的水资源 分布图并从中获利。

National regulations about the amount of lead permitted in pipes have been strengthened over the years, but many old water distribution systems have not been updated and contain unsafe levels.

多年来，国家对管道中铅允许含量的规定不断加强，但许多旧的供水系统尚未更新，并且含有不安全的水平。