This document, the sixth in a series of National Quality Inventories published since 1975, summarizes water quality reports submitted by the States and other jurisdictions of the United States in 1986. These State reports ...

This document examines the Section 401 State water quality certification process and how it applies to wetlands.

This primer explains the methods used now and processes being developed for the future to treat wastewater discharges and give the Nation clean water.

Since May 1985, the Criteria and Standards Division of the U.S. Environmental Protection Agency has been pursuing the development of a method for establishing numerical sediment quality criteria. In anticipation of such a ...