south arkansas sparta aquifer recovery initiative - gis … · · 2017-05-26south arkansas sparta...
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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 • [email protected] Office 870 862-1244 • Cell 870 814-2871 • FAX 881-9708
Sherrel Johnson, Grants Administrator • [email protected] • 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
USGS Real-Time Monitoring Wells*
*Spencer, LA well measured manually quarterly beginning summer 2013
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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