I don't think this should affect anyone's dechlorination routine, but just in case:
http://www.dcwater.com/news/listings/press_release584.cfm
Mar 11, 2013 -- From March 18 through April 29, 2013, the disinfectant in drinking water will temporarily switch from chloramine to chlorine.
The...
I just set up a fish tank after a long absence from the hobby. I tested the nitrite (NO2) level in my Falls Church tap water at 2 ppm. Nitrates are also high--about 20 ppm. The 2010 water quality report indicates that they've historically been at 0-.09 NO2 and .6-2.6 NO3. These units are in...