This booklet was prepared by the United States Environmental Protection Agency U.S. EPA for officials from communities of less than 10000 people to present them available options and thus to enable an informed choice.
U.S. EPA (1987): It's Your Choice: A Guidebook for Local Officials on Small Community Wastewater Management Options . (= EPA/430-87-006 ). United States Environmental Protection Agency, Office of Water Office of Research and Development