Gretchen shaking dissolved oxygen to purple
Channel: WWALS Watershed Coalition
Date: 26/08/2012

Adopt-A-Stream water quality testing training with WWALS 2012-08-25
Angela Bray and Richard Batten
Dave Hetzel, President, John S. Quarterman, VP, Brittney Hull, Treasurer, Nathan Wilkins, Secretary, Gretchen Quarterman, Bret Wagenhorst, Garry Gentry, Karan A. Rawlins, Al Browning
Videos by John S. Quarterman for WWALS Watershed Coalition (WWALS), Valdosta, Lowndes County, Georgia, 25 August 2012
http://wwals.net/2012/08/adopt-a-stream-water-quality-testing-training-with-wwals-2012-08-25/