by Jennifer L. Shelton ... [and others] ; prepared in cooperation with the California State Water Resources Control Board, National Water-Quality Assessment Program
by Peter E. Church ... [and others] ; in cooperation with the U.S. Environmental Protection Agency, Monitoring and Measurement for the 21st Century Initiative
by Jennifer G. Savoie ... [and others] ; prepared in cooperation with the Air Force Center for Environmental Excellence and the U.S. Environmental Protection Agency
by R.S. Dinicola ... [and others] ; prepared in cooperation with the Department of the Navy, Engineering Field Activity, Northwest, Naval Facilities Engineering Command