Just saying there are thousands of these derailments (Major Derailments) all the time and nothing is said. This story has sprouted political wings all over the media, and by it nature not suitable under forum rules? A number of years ago a major RR , in CA , derailed on an embankment .several chemical car split open dumping it contents into the river killing every living thing in it .
You may be remembering, and exaggerating, the SINGLE tanker derailment back in July 1991, on SP's Cantara Loop. The tanker was filled with about 19,000 gallons of a Herbicide (Mentam Sodium), which dumped into the Sacramento River, just up-stream from Dunsmuir, CA. Although, most, if not all, the fish were killed in the river.
The SP subsequently hired the SP GS4 #4449, from Portland, OR, to pull special "media trains" between Reading, CA and Black Butte, CA in order to show that all the hype from the media over "everything was killed for miles on either side of the river" was false. We ran up and down the Sacramento River Canyon for some 3 or 4 days, carrying members of the media, local residents, and local businessmen.
We learned from many of the local fishing camp operators, that although the game fish were killed, all the "sucker fish" were also killed (apparently the 'sucker fish' had been progressing up the Sacramento River from the huge Shasta Lake Reservoir, and eating most of the eggs laid by the game fish). Many of the Fishing Camp operators were quite vocal that the "spill" was the best thing that could have happened to the river, at that time, because all the "suckers" were gone, and once the SP paid to have the river completely restocked with game fish (only a month later), their business would be better than ever.
Last fall CP rail lost a few cars containing hazardous materials, into a creek and pond that empties into a major lake here in WI, got a 15 second bit in the media, Every day , every month every year , this stuff happens. and next to nothing is mentioned