The Florida Department of Environmental Regulation has established detailed dissolved oxygen standards for the various classes of surface water in the state. The results of this study and a review of the literature reveal that many natural humic-colored aquatic systems (usually Class III waters) rarely meet the established 5 mg/L criteria. We believe, based on our studies, that these conditions are natural and do not result from organic pollution. In view of this, we believe a review of the current DER Standard, for humic-colored waters only, is in order.
Belanger, Thomas V.; Dierberg, Forrest E.; and Roberts, Jerry, "Dissolved Oxygen Concentrations In Florida's Humic-Colored Waters And Water Quality Standard Implications" (1985). Ocean Engineering and Marine Sciences Faculty Publications. 91.