https://docs.google.com/a/csd49.org/spreadsheet/ccc?pli=1&key=0Av3UWPBxN0bLdFVTMmlaemdXMF9EeU5ibU5keVVWaEE#gid=0" alt="" />This is the nitrates data that the nitrates people all the way from 2002 through 2011 gathered. It takes a pretty big drop at the begining, then it stays the same for a while, and then takes a huge incline. This tells us that the nitrates level has dropped and risen over the past 10 years.