The salinity of the Colorado River dropped significantly between 1983 and 1986 when, during the 4-year period of high flows on the Colorado River, the quality of water in the Colorado River reservoir system was significantly improved.
(The salinity of the Colorado River; dropped; significantly; T:between 1983 and 1986; T:when, during the 4-year period of high flows on the Colorado River, the quality of water in the Colorado River reservoir system was significantly improved) (the quality of water in the Colorado River reservoir system; was significantly improved; T:during the 4-year period of high flows on the Colorado River)
The salinity of the Colorado River the quality of water in the Colorado River reservoir system
dropped was significantly improved
significantly T:between 1983 and 1986 T:when, during the 4-year period of high flows on the Colorado River, the quality of water in the Colorado River reservoir system was significantly improved
T:during the 4-year period of high flows on the Colorado River