Rivers. Colorado Environmental Defense Fund (EDF) sues 3 federal agencies in effort to stop salinity levels in rivers from increasing. Details. RMN Ag 23, 1977 p.5 Post Ag 23, 1977 p.2 Reviews streamflow ruling. Post Empire Je 10, 1979 p.74-77 Court rules public may not have right to recreation on rivers through private property. RMN Jy 3, 1979 p.119 Post Jy 3, 1979 p.2