The Trinity River in California is the largest tributary to the Klamath. It has Trinity Dam built in the 60's, which diverts 80 percent of the river's flow to Southern California farmers.

Several years ago, the EPA made Shasta Dam increase its outflow to dilute heavy metal runoff from old mines below the dam. This caused a water shortage downstream, during the irrigation season, which was made up in part by pumping Klamath water over the hill to help out the lower Sacramento. I don't know if this may still be going on.

The Trinity data above is from the Web. The EPA comment is from my 75-year-old memory, so it may be questionable.

If true, both of these items would have an effect on the salmon runs. (Don't use "impact" when you mean "effect," please.)

I think that we tire of hearing about Oregon spud farmers and Oregon dams wiping out the salmon.

Guy Hehn, Albany