FLORIDA GEOLOGICAL SURVEY


0     2    4 Was


NO S   WPU S L"REAM FRN NM



       FLOW CHART
  Tftol wiTh of stream represets flow with no diversion.
       U 30 m d diverted
       streoamflow ofter 30 rigd diverted
       4 Flow-meowig Poi t
         0        400 mgd
            Flow cole


Figure 24. Flow chart of Econfina Creek during the low-water period of May 1963 showing the effect on streamflow if 30 mgd were diverted at the proposed dam site.

    It was possible to make direct measurements of the flow from Blue Springs and Williford Springs. Flow from Gainer Springs was determined by the difference in streamflow measurements above and below the group. Other spring flow, which could not be measured, enters the creek along its bed and banks.
    The amount of flow attributable to spring flow was calculated at the Bennett gaging station utilizing electrical conductivity measurements of the water. Pure water is a poor conductor of electricity but mineral matter dissolved in water consists of charged particles which will conduct an electrical current. The amount of current that a water will conduct is an indicator of the amount of dissolved minerals in the water. The measurement of the electrical current conducted by