The purpose of the manual is to help less-experienced project managers from government agencies, industry, and environmental groups request appropriate chemical analyses and make an informed evaluation of the analytical results. The manual, written for the non-chemist, walks the reader through defining analytical objectives, planning for and ensuring quality assurance, working with an analytical laboratory and evaluating the data received from the lab. The report appendices include, among other things, example Statements of Work for laboratories and an example Quality Assurance report.