Low-cost Data for Characterization & Management of Fractured-Crystalline Aquifers
Slide 1 Title
Slide 2 Location / Background
Slide 3 Data collected by Jefferson County - USGS - EPA
Slide 4 Objective and Approach
Slide 5 Low Cost Data Project Data and Student tasks
Slide 6 Turkey Creek Basin aquifer is a thin steeply sloping veneer covering 47 square miles
Slide 7 MGWRS overview of basin landmarks - streams - gage
Slide 8 Components of Surface water discharge on USGS gage at the mouth of the basin
Slide 9 Ground water outflow
Slide 10 Groundwater Discharge from basin = stream base flow + ground water outflow
Slide 11 Estimated return flow from septic systems is twice natural groundwater recharge, storage water is being recycled
Slide 12 At what scale is Turkey Creek Basin sufficiently frcatured to be represented as porous media?
Slide 13 Viewing TDS on a 2D map masks the hierarchal flow regimes
Slide 14 Identifying inflow from water bearing fractures will help to delineate the flow regimes
Slide 15 What can driller's logs reveal?
Slide 16 Development based on driller's records
Slide 17 Water bearing fracture frequency by rock type
Slide 18 Water bearing fracture frequency with depth
Slide 19 Water trends with time from driller's logs
Slide 20 Compare recent synoptic water level measurements to water levels from driller logs in the 1990s
Slide 21 Compare recent synoptic water level measurements to water levels with stream stages included from driller logs in the 1990s
Slide 22 Monthly water levels in 15 wells have been declining over the last few years
Slide 23 Short term declines may be due to recent declines in precipitation,
                 but the long term decrease cannot be attributed to climatic conditions
Slide 24 x,y,z locations of fractures locate measurements form wells in 3D space
Slide 25 Summary