There Was Never Any Health Risk: Quapaw Baths & Spa Reopens After National Park Service Confirms False Positive of Legionella Bacteria. HOT SPRINGS, AR, Aug. 09, 2019 (GLOBE NEWSWIRE) -- Final test results of water samples from Quapaw Baths & Spa show zero presence of Legionella Bacteria. Guests were never exposed to any kind of...