To answer your question:
Here ya go!
http://http://www.youtube.com/watch?v=JClhvZj8yn4
If this link doesn't take just do an "EMS Helicopter" search on YouTube and on about the 7th page or so of the search you'll see the video you've posted at the start of this thread.
It's entitled "Multiple Victim Accident" or something like that.
Says they are based in northern California.
Hope this helps. They have several other videos of landings and take-offs.