The District has identified seasonal low, medium and high flow periods for the Myakka River. Short-term minimum flow compliance standards were developed for each of these periods using a “building block” approach. For the Myakka River, historic flows demonstrate that a Minimum Flow for the low flow period greater than 0 cubic feet per second (cfs) is inappropriate due to the historically ephemeral nature of the system. Therefore, the Minimum Low Flow for the low flow period (Block 1, April 20 through June 25) is the natural flow minus 15% at the Sarasota USGS Gage. For the Minimum High Flow for the high flow period (Block 3, June 26 through October 26), is a stepped flow reduction of 16% and 7% of the historic flows, with the step occurring at the 15% exceedance flow (577 cfs) at the Sarasota USGS Gage. For the medium flow period (October 27 to April 19) it was determined that changes in habitat availability for fish and macroinvertebrates determined the Minimum Medium Flow. The Minimum Medium Flow is established as the flow less 5% at the Sarasota USGS Gage. Five and ten year means and medians are proposed as long-term compliance standards.