This is a print on demand edition of a hard to find publication. Report of a survey conducted by the EPA and its state and tribal partners of the nation's lakes

Water Quality – Science, Assessments and Policy examines many of the scientific issues; national, regional and local assessment practices and results; and nat

Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sam

Quality control has played an important role in the manufacture of goods and the creation of monuments since antiquity. From the development of Heron’s first