Diane that was a wonderful post. You maybe should have sent it in to the Publishers of FAOL for the Readers Casts forum it certainly is good enough.
The rivers and streams around my hometown were all crystal clear as I grew up. On Skaha lake at the south end of town the water was so clear you could throw a quarter off the High diving board and see it sitting on the bottom 32 feet deep. The lakes and streams had good sized runs of all 5 types of pacific salmon each fall. When I was 8 or 9 in 1953 they put in a bunch of dams for flood control and irrigation. Some are up here in Canada and some are downstream in Washington state. Enough obstructions were put in their paths that salmon that plied the waters of my home turf can no longer make the journey north. I matters not that the water is still relatively clean if the fish cannot reach it anymore. There is more to pollution than just industrial waste. It is commendable of you to have brought these problems our notice once again and I thank you for that. My home waters are the Okanagan River drainage system.
Ps. brookid That is indeed a nice creek.