As a stream quality monitor in Fairfax county, a natural history field studies certificate program participant, and as a Ph.D. geologist (aqueous geochemistry), I strongly support the development of the amendment to the State's Antidegradation Policy by designating a portion of Bull Run as Exceptional State Waters.  This stretch of the Bull Run traverses some of the oldest growth forest in the Northern Virginia area and is contained within the National Park. Because of the location of this stretch of the Bull Run within the National Park, and the possibility of conserving the surrounding land, that would help to preserve the pristine nature of the stream, I believe this particular portion of Bull Run is ideal for designation as an exceptional state water.