South Arkansas Sparta Aquifer Recovery Initiative Ouachita River Alternative Water Supply Project Union County Water Conservation Board “Well levels in Arkansas are rising for the first time in 60 years.” - Randy Young, former Executive Director Arkansas Natural Resources Commission December 20, 2005 Water level change in 8 USGS real-time wells since Oct 2004 (rise in feet) Oct 2006 April 2007 *April 2009 April 2010 April 2012 April 2014 April 2015 April 2016 April 2017 Smackover 4.0 10.0 16.4 19.9 23.1 25.2 25.8 27.1 32.1 Spencer (LA) -0.30 1.6 5.0 11.2 11.7 12.9 14.8 16.8 15.1 Magnolia 1.9 3.5 7.3 7.9 8.8 11.5 12.8 13.7 12.7 Junction City (LA) 5.7 9.2 18.3 20.8 20.4 24.1 26.3 27.0 29.7 Union School 9.1 20.2 32.1 42.1 40.1 45.2 50.5 45.5 54.9 Monsanto 38.2 49.0 59.3 62.7 63.8 73.6 73.9 75.0 90.7 Airport 18.0 24.1 37.1 39.6 35.3 46.3 49.3 49.6 58.4 Welcome Center 25.7 36.1 49.5 53.0 51.8 59.0 62.2 61.7 ** *April 2008, 2011, & 2013 levels omitted for spacing purposes in order to update recent comparative change columns. **Welcome Center Well failed Fall 2016; as of 5.26.17 new well construction is schedule for the week of June 12-16, 2017

UNION COUNTY WATER CONSERVATION BOARD www.ucwcb.org

Vernie Meador, President

Les Chandler • Mary Dell Coleman • Roger Landes • Johnny Loftin Robert McKinnon • Vernie Meador • Pete Parks, Secretary/Treasurer • Ken Rudder, Vice President

Cindy Woolsey, Administrative Assistant

441 West Cedar • El Dorado, Arkansas 71730 • cindywoolsey@suddenlink.net Office 870 862-1244 • Cell 870 814-2871 • FAX 881-9708

Sherrel Johnson, Grants Administrator • sherrelj@suddenlink.net • 870 314-0749

Mission Statement: The guiding purpose and primary objective of the Union County Water Conservation Board is to conserve, protect, and maintain the Sparta Formation Aquifer as a continuing source of high quality, potable water for current and future consumers by providing for affordable, alternate sources of fresh water pursuant to the authority and responsibility granted by the State of Arkansas.

2016 Sparta Aquifer Recovery Statement of Condition “One of the defining conditions for the [state of Arkansas to declare a] critical ground-water area in a confined aquifer is that the water level is below the top of the aquifer. Located just north of El Dorado on the El Dorado Chemical plant site, the USGS Monsanto real-time monitoring well's April 2017 depth to water is 258.8 ft. below land surface. The deepest measurement at the Monsanto well in October 2001 was 379.7 ft. below land surface. The top of the aquifer at the Monsanto well* is about 228 ft. below land surface. In October 2001 the water level was 148.3 ft. below the top of the aquifer. The Monsanto well’s recovery since October 2001 is about 117.5 ft., with the April 2017 water level about 30.8 ft. below the top of the aquifer, or about 79.7 percent of the way to the top of the aquifer since October 2001.” --*The top of the aquifer varies at each of the eight USGS Real-Time Well locations.

Anna Nottmeier, Hydrologist  USGS Arkansas Water Science Center

April 2017

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USGS  Real-­‐Time  Monitoring  Wells’  Distance  To  Top  of  Aquifer  Based  on  April  2016  Water  Level  measurements  in  8  USGS  Real  Time  Monitoring  Wells      Location                                    Depth  in  Feet  to  Top  of  Aquifer   WL  Distance  to  Top  of  Aquifer*   Water  Level  Rise  Since  2004    Smackover  **     157   11.95   32.1      

Spencer,  LA     237   73.24   15.1  

Magnolia   135   -­‐130.76   12.7  

Junction  City,  LA   161   -­‐105.85   29.7  

Union  School**   284   11.91   54.9  

Monsanto   228   -­‐46.52   90.7  

Airport   268   -­‐42.05   58.4  

Welcome  Center   273   -­‐46.06   ***(2016)  61.7  

 One  of  the  defining  conditions  for  the  [state  of  Arkansas  to  declare  a]  critical  groundwater  area  in  a  

confined  aquifer  is  that  the  water  level  is  below  the  top  of  the  aquifer.  Located  just  north  of  El  Dorado  on  the  El  Dorado  Chemical  plant  site,  the  USGS  Monsanto  real-­‐time  monitoring  well's  April  2017  depth  to  water  is  258.8  ft.  below  land  surface.  The  deepest  measurement  at  the  Monsanto  well  was  379.7  ft.  below  land  surface  in  October  2001.  The  top  of  the  aquifer  at  the  Monsanto  well  is  about  228  ft.  below  land  surface.  In  October  2001  the  water  level  was  148.3  ft.  below  the  top  of  the  aquifer.  The  Monsanto  well’s  recovery  since  October  2000  is  about  117.5  ft.,  with  the  April  2017  water  level  about  30.8  ft.  below  the  top  of  the  aquifer,  or  about  79.7  percent  of  the  way  to  the  top  of  the  aquifer  since  October  2001.  ––  Anna  Nottmeier,  USGS  Arkansas  Water  Science  Center,  April  2017.  

   *The  top  of  the  aquifer  varies  at  each  of  the  eight  USGS  Real-­‐Time  Well  locations  **.Smackover  &  Union  Monitoring  wells’  water  levels  were  below  the  Top  of  the  Aquifer  when  major  industrial  conversion  from  Sparta  groundwater  to  surface  Ouachita  River  water  occurred  beginning  in  October  2004.  ***The  Welcome  Center  well  failed  fall  2016;  new  well  construction  is  scheduled  for  June  2017